First multi platform version, works on Linux and Windows

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/1.1@855 b956fd51-792f-4845-bead-9b4dfca2ff2c

11 files changed, 5798 insertions, 0 deletions

diff --git a/Game/Code/lib/ffmpeg/avcodec.pas b/Game/Code/lib/ffmpeg/avcodec.pas
new file mode 100644
index 00000000..cdb9b7d4
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/avcodec.pas
@@ -0,0 +1,3225 @@
+(*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.
+ * Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+ * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+ * in the source codes *)
+
+(*
+ * Min. version: 51.16.0
+ * Max. version: 51.50.0, Revision: 11878, Wed Feb 6 12:37:37 2008 UTC
+ *)
+
+unit avcodec;
+
+{$IFDEF FPC}
+  {$MODE DELPHI }
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  avutil,
+  rational,
+  opt,
+  UConfig;
+
+const
+  (* Max. supported version by this header *)
+  LIBAVCODEC_MAX_VERSION_MAJOR   = 51;
+  LIBAVCODEC_MAX_VERSION_MINOR   = 50;
+  LIBAVCODEC_MAX_VERSION_RELEASE = 0;
+  LIBAVCODEC_MAX_VERSION = (LIBAVCODEC_MAX_VERSION_MAJOR * VERSION_MAJOR) +
+                           (LIBAVCODEC_MAX_VERSION_MINOR * VERSION_MINOR) +
+                           (LIBAVCODEC_MAX_VERSION_RELEASE * VERSION_RELEASE);
+
+(* Check if linked version is supported *)
+{$IF (LIBAVCODEC_VERSION > LIBAVCODEC_MAX_VERSION)}
+  {$MESSAGE Warn 'Linked version of libavcodec may be unsupported!'}
+{$IFEND}
+
+const
+  AV_NOPTS_VALUE: int64   = $8000000000000000;
+  AV_TIME_BASE            = 1000000;
+  AV_TIME_BASE_Q          : TAVRational = (num:1; den:AV_TIME_BASE); (* added by CAT *)
+
+(**
+ * Identifies the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
+ *
+ * If you add a codec ID to this list, add it so that
+ * 1. no value of a existing codec ID changes (that would break ABI),
+ * 2. it is as close as possible to similar codecs.
+ *)
+type
+  TCodecID = (
+    CODEC_ID_NONE,
+    CODEC_ID_MPEG1VIDEO,
+    CODEC_ID_MPEG2VIDEO, //* prefered ID for MPEG Video 1/2 decoding */
+    CODEC_ID_MPEG2VIDEO_XVMC,
+    CODEC_ID_H261,
+    CODEC_ID_H263,
+    CODEC_ID_RV10,
+    CODEC_ID_RV20,
+    CODEC_ID_MJPEG,
+    CODEC_ID_MJPEGB,
+    CODEC_ID_LJPEG,
+    CODEC_ID_SP5X,
+    CODEC_ID_JPEGLS,
+    CODEC_ID_MPEG4,
+    CODEC_ID_RAWVIDEO,
+    CODEC_ID_MSMPEG4V1,
+    CODEC_ID_MSMPEG4V2,
+    CODEC_ID_MSMPEG4V3,
+    CODEC_ID_WMV1,
+    CODEC_ID_WMV2,
+    CODEC_ID_H263P,
+    CODEC_ID_H263I,
+    CODEC_ID_FLV1,
+    CODEC_ID_SVQ1,
+    CODEC_ID_SVQ3,
+    CODEC_ID_DVVIDEO,
+    CODEC_ID_HUFFYUV,
+    CODEC_ID_CYUV,
+    CODEC_ID_H264,
+    CODEC_ID_INDEO3,
+    CODEC_ID_VP3,
+    CODEC_ID_THEORA,
+    CODEC_ID_ASV1,
+    CODEC_ID_ASV2,
+    CODEC_ID_FFV1,
+    CODEC_ID_4XM,
+    CODEC_ID_VCR1,
+    CODEC_ID_CLJR,
+    CODEC_ID_MDEC,
+    CODEC_ID_ROQ,
+    CODEC_ID_INTERPLAY_VIDEO,
+    CODEC_ID_XAN_WC3,
+    CODEC_ID_XAN_WC4,
+    CODEC_ID_RPZA,
+    CODEC_ID_CINEPAK,
+    CODEC_ID_WS_VQA,
+    CODEC_ID_MSRLE,
+    CODEC_ID_MSVIDEO1,
+    CODEC_ID_IDCIN,
+    CODEC_ID_8BPS,
+    CODEC_ID_SMC,
+    CODEC_ID_FLIC,
+    CODEC_ID_TRUEMOTION1,
+    CODEC_ID_VMDVIDEO,
+    CODEC_ID_MSZH,
+    CODEC_ID_ZLIB,
+    CODEC_ID_QTRLE,
+    CODEC_ID_SNOW,
+    CODEC_ID_TSCC,
+    CODEC_ID_ULTI,
+    CODEC_ID_QDRAW,
+    CODEC_ID_VIXL,
+    CODEC_ID_QPEG,
+    CODEC_ID_XVID,
+    CODEC_ID_PNG,
+    CODEC_ID_PPM,
+    CODEC_ID_PBM,
+    CODEC_ID_PGM,
+    CODEC_ID_PGMYUV,
+    CODEC_ID_PAM,
+    CODEC_ID_FFVHUFF,
+    CODEC_ID_RV30,
+    CODEC_ID_RV40,
+    CODEC_ID_VC1,
+    CODEC_ID_WMV3,
+    CODEC_ID_LOCO,
+    CODEC_ID_WNV1,
+    CODEC_ID_AASC,
+    CODEC_ID_INDEO2,
+    CODEC_ID_FRAPS,
+    CODEC_ID_TRUEMOTION2,
+    CODEC_ID_BMP,
+    CODEC_ID_CSCD,
+    CODEC_ID_MMVIDEO,
+    CODEC_ID_ZMBV,
+    CODEC_ID_AVS,
+    CODEC_ID_SMACKVIDEO,
+    CODEC_ID_NUV,
+    CODEC_ID_KMVC,
+    CODEC_ID_FLASHSV,
+    CODEC_ID_CAVS,
+    CODEC_ID_JPEG2000,
+    CODEC_ID_VMNC,
+    CODEC_ID_VP5,
+    CODEC_ID_VP6,
+    CODEC_ID_VP6F,
+    CODEC_ID_TARGA,
+    CODEC_ID_DSICINVIDEO,
+    CODEC_ID_TIERTEXSEQVIDEO,
+    CODEC_ID_TIFF,
+    CODEC_ID_GIF,
+    CODEC_ID_FFH264,
+    CODEC_ID_DXA,
+    CODEC_ID_DNXHD,
+    CODEC_ID_THP,
+    CODEC_ID_SGI,
+    CODEC_ID_C93,
+    CODEC_ID_BETHSOFTVID,
+    CODEC_ID_PTX,
+    CODEC_ID_TXD,
+    CODEC_ID_VP6A,
+    CODEC_ID_AMV,
+    CODEC_ID_VB,
+    CODEC_ID_PCX,
+    CODEC_ID_SUNRAST,
+
+    //* various PCM "codecs" */
+    CODEC_ID_PCM_S16LE= $10000,
+    CODEC_ID_PCM_S16BE,
+    CODEC_ID_PCM_U16LE,
+    CODEC_ID_PCM_U16BE,
+    CODEC_ID_PCM_S8,
+    CODEC_ID_PCM_U8,
+    CODEC_ID_PCM_MULAW,
+    CODEC_ID_PCM_ALAW,
+    CODEC_ID_PCM_S32LE,
+    CODEC_ID_PCM_S32BE,
+    CODEC_ID_PCM_U32LE,
+    CODEC_ID_PCM_U32BE,
+    CODEC_ID_PCM_S24LE,
+    CODEC_ID_PCM_S24BE,
+    CODEC_ID_PCM_U24LE,
+    CODEC_ID_PCM_U24BE,
+    CODEC_ID_PCM_S24DAUD,
+    CODEC_ID_PCM_ZORK,
+    CODEC_ID_PCM_S16LE_PLANAR,
+
+    //* various ADPCM codecs */
+    CODEC_ID_ADPCM_IMA_QT= $11000,
+    CODEC_ID_ADPCM_IMA_WAV,
+    CODEC_ID_ADPCM_IMA_DK3,
+    CODEC_ID_ADPCM_IMA_DK4,
+    CODEC_ID_ADPCM_IMA_WS,
+    CODEC_ID_ADPCM_IMA_SMJPEG,
+    CODEC_ID_ADPCM_MS,
+    CODEC_ID_ADPCM_4XM,
+    CODEC_ID_ADPCM_XA,
+    CODEC_ID_ADPCM_ADX,
+    CODEC_ID_ADPCM_EA,
+    CODEC_ID_ADPCM_G726,
+    CODEC_ID_ADPCM_CT,
+    CODEC_ID_ADPCM_SWF,
+    CODEC_ID_ADPCM_YAMAHA,
+    CODEC_ID_ADPCM_SBPRO_4,
+    CODEC_ID_ADPCM_SBPRO_3,
+    CODEC_ID_ADPCM_SBPRO_2,
+    CODEC_ID_ADPCM_THP,
+    CODEC_ID_ADPCM_IMA_AMV,
+    CODEC_ID_ADPCM_EA_R1,
+    CODEC_ID_ADPCM_EA_R3,
+    CODEC_ID_ADPCM_EA_R2,
+    CODEC_ID_ADPCM_IMA_EA_SEAD,
+    CODEC_ID_ADPCM_IMA_EA_EACS,
+    CODEC_ID_ADPCM_EA_XAS,
+
+    //* AMR */
+    CODEC_ID_AMR_NB= $12000,
+    CODEC_ID_AMR_WB,
+
+    //* RealAudio codecs*/
+    CODEC_ID_RA_144= $13000,
+    CODEC_ID_RA_288,
+
+    //* various DPCM codecs */
+    CODEC_ID_ROQ_DPCM= $14000,
+    CODEC_ID_INTERPLAY_DPCM,
+    CODEC_ID_XAN_DPCM,
+    CODEC_ID_SOL_DPCM,
+
+    CODEC_ID_MP2= $15000,
+    CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+    CODEC_ID_AAC,
+    {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+    _CODEC_ID_MPEG4AAC, // will be redefined to CODEC_ID_AAC below
+    {$IFEND}
+    CODEC_ID_AC3,
+    CODEC_ID_DTS,
+    CODEC_ID_VORBIS,
+    CODEC_ID_DVAUDIO,
+    CODEC_ID_WMAV1,
+    CODEC_ID_WMAV2,
+    CODEC_ID_MACE3,
+    CODEC_ID_MACE6,
+    CODEC_ID_VMDAUDIO,
+    CODEC_ID_SONIC,
+    CODEC_ID_SONIC_LS,
+    CODEC_ID_FLAC,
+    CODEC_ID_MP3ADU,
+    CODEC_ID_MP3ON4,
+    CODEC_ID_SHORTEN,
+    CODEC_ID_ALAC,
+    CODEC_ID_WESTWOOD_SND1,
+    CODEC_ID_GSM, ///< as in Berlin toast format
+    CODEC_ID_QDM2,
+    CODEC_ID_COOK,
+    CODEC_ID_TRUESPEECH,
+    CODEC_ID_TTA,
+    CODEC_ID_SMACKAUDIO,
+    CODEC_ID_QCELP,
+    CODEC_ID_WAVPACK,
+    CODEC_ID_DSICINAUDIO,
+    CODEC_ID_IMC,
+    CODEC_ID_MUSEPACK7,
+    CODEC_ID_MLP,
+    CODEC_ID_GSM_MS, { as found in WAV }
+    CODEC_ID_ATRAC3,
+    CODEC_ID_VOXWARE,
+    CODEC_ID_APE,
+    CODEC_ID_NELLYMOSER,
+    CODEC_ID_MUSEPACK8,
+    CODEC_ID_SPEEX,
+
+    //* subtitle codecs */
+    CODEC_ID_DVD_SUBTITLE= $17000,
+    CODEC_ID_DVB_SUBTITLE,
+    CODEC_ID_TEXT,  ///< raw UTF-8 text
+    CODEC_ID_XSUB,
+    CODEC_ID_SSA,
+    CODEC_ID_MOV_TEXT,
+
+    (* other specific kind of codecs (generaly used for attachments) *)
+    CODEC_ID_TTF= $18000,
+    
+    CODEC_ID_MPEG2TS= $20000, {*< _FAKE_ codec to indicate a raw MPEG-2 TS
+                              * stream (only used by libavformat) *}
+    __CODEC_ID_4BYTE = $FFFFF  // ensure 4-byte enum
+  );
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+{* CODEC_ID_MP3LAME is obsolete *}
+const
+  CODEC_ID_MP3LAME = CODEC_ID_MP3;
+  CODEC_ID_MPEG4AAC = CODEC_ID_AAC;
+{$IFEND}
+
+type
+  TCodecType = (
+    CODEC_TYPE_UNKNOWN = -1,
+    CODEC_TYPE_VIDEO,
+    CODEC_TYPE_AUDIO,
+    CODEC_TYPE_DATA,
+    CODEC_TYPE_SUBTITLE,
+    CODEC_TYPE_ATTACHMENT,
+	  CODEC_TYPE_NB
+  );
+
+{**
+ * currently unused, may be used if 24/32 bits samples ever supported */
+ * all in native endian
+ *}
+type
+  TSampleFormat = (
+    SAMPLE_FMT_NONE = -1,
+    SAMPLE_FMT_U8,              ///< unsigned 8 bits
+    SAMPLE_FMT_S16,             ///< signed 16 bits
+    SAMPLE_FMT_S24,             ///< signed 24 bits
+    SAMPLE_FMT_S32,             ///< signed 32 bits
+    SAMPLE_FMT_FLT              ///< float
+  );
+
+const
+  {* in bytes *}
+  AVCODEC_MAX_AUDIO_FRAME_SIZE = 192000; // 1 second of 48khz 32bit audio
+
+{**
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * This is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end.<br>
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged
+ * MPEG bitstreams could cause overread and segfault.
+ *}
+  FF_INPUT_BUFFER_PADDING_SIZE = 8;
+
+{**
+ * minimum encoding buffer size.
+ * Used to avoid some checks during header writing.
+ *}
+  FF_MIN_BUFFER_SIZE = 16384;
+
+type
+{*
+ * motion estimation type.
+ *}
+  TMotion_Est_ID = (
+    ME_ZERO = 1,  ///< no search, that is use 0,0 vector whenever one is needed
+    ME_FULL,
+    ME_LOG,
+    ME_PHODS,
+    ME_EPZS,      ///< enhanced predictive zonal search
+    ME_X1,        ///< reserved for experiments
+    ME_HEX,       ///< hexagon based search
+    ME_UMH,       ///< uneven multi-hexagon search
+    ME_ITER       ///< iterative search
+  );
+
+  TAVDiscard = (
+    {* We leave some space between them for extensions (drop some
+     * keyframes for intra-only or drop just some bidir frames). *}
+    AVDISCARD_NONE   =-16, ///< discard nothing
+    AVDISCARD_DEFAULT=  0, ///< discard useless packets like 0 size packets in avi
+    AVDISCARD_NONREF =  8, ///< discard all non reference
+    AVDISCARD_BIDIR  = 16, ///< discard all bidirectional frames
+    AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
+    AVDISCARD_ALL    = 48  ///< discard all
+  );
+
+  PRcOverride = ^TRcOverride;
+  TRcOverride = record {16}
+    start_frame: integer;
+    end_frame: integer;
+    qscale: integer; // if this is 0 then quality_factor will be used instead
+    quality_factor: single;
+  end;
+
+const
+  FF_MAX_B_FRAMES = 16;
+
+{* encoding support
+   These flags can be passed in AVCodecContext.flags before initialization.
+   Note: Not everything is supported yet.
+*}
+
+  CODEC_FLAG_QSCALE = $0002;  ///< Use fixed qscale.
+  CODEC_FLAG_4MV    = $0004;  ///< 4 MV per MB allowed / advanced prediction for H263.
+  CODEC_FLAG_QPEL   = $0010;  ///< use qpel MC.
+  CODEC_FLAG_GMC    = $0020;  ///< use GMC.
+  CODEC_FLAG_MV0    = $0040;  ///< always try a MB with MV=<0,0>.
+  CODEC_FLAG_PART   = $0080;  ///< Use data partitioning.
+  {**
+   * The parent program guarantees that the input for B-frames containing
+   * streams is not written to for at least s->max_b_frames+1 frames, if
+   * this is not set the input will be copied.
+   *}
+  CODEC_FLAG_INPUT_PRESERVED    = $0100;
+  CODEC_FLAG_PASS1              = $0200; ///< use internal 2pass ratecontrol in first  pass mode
+  CODEC_FLAG_PASS2              = $0400; ///< use internal 2pass ratecontrol in second pass mode
+  CODEC_FLAG_EXTERN_HUFF        = $1000; ///< use external huffman table (for mjpeg)
+  CODEC_FLAG_GRAY               = $2000; ///< only decode/encode grayscale
+  CODEC_FLAG_EMU_EDGE           = $4000; ///< don't draw edges
+  CODEC_FLAG_PSNR               = $8000; ///< error[?] variables will be set during encoding
+  CODEC_FLAG_TRUNCATED      = $00010000; //** input bitstream might be truncated at a random location instead
+                                   //         of only at frame boundaries */
+  CODEC_FLAG_NORMALIZE_AQP  = $00020000; ///< normalize adaptive quantization
+  CODEC_FLAG_INTERLACED_DCT = $00040000; ///< use interlaced dct
+  CODEC_FLAG_LOW_DELAY      = $00080000; ///< force low delay
+  CODEC_FLAG_ALT_SCAN       = $00100000; ///< use alternate scan
+  CODEC_FLAG_TRELLIS_QUANT  = $00200000; ///< use trellis quantization
+  CODEC_FLAG_GLOBAL_HEADER  = $00400000; ///< place global headers in extradata instead of every keyframe
+  CODEC_FLAG_BITEXACT       = $00800000; ///< use only bitexact stuff (except (i)dct)
+  {* Fx : Flag for h263+ extra options *}
+  {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+  CODEC_FLAG_H263P_AIC      = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
+  {$IFEND}
+  CODEC_FLAG_AC_PRED        = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction
+  CODEC_FLAG_H263P_UMV      = $02000000; ///< Unlimited motion vector
+  CODEC_FLAG_CBP_RD         = $04000000; ///< use rate distortion optimization for cbp
+  CODEC_FLAG_QP_RD          = $08000000; ///< use rate distortion optimization for qp selectioon
+  CODEC_FLAG_H263P_AIV      = $00000008; ///< H263 Alternative inter vlc
+  CODEC_FLAG_OBMC           = $00000001; ///< OBMC
+  CODEC_FLAG_LOOP_FILTER    = $00000800; ///< loop filter
+  CODEC_FLAG_H263P_SLICE_STRUCT = $10000000;
+  CODEC_FLAG_INTERLACED_ME  = $20000000; ///< interlaced motion estimation
+  CODEC_FLAG_SVCD_SCAN_OFFSET = $40000000; ///< will reserve space for SVCD scan offset user data
+  CODEC_FLAG_CLOSED_GOP     = $80000000;
+  CODEC_FLAG2_FAST          = $00000001; ///< allow non spec compliant speedup tricks
+  CODEC_FLAG2_STRICT_GOP    = $00000002; ///< strictly enforce GOP size
+  CODEC_FLAG2_NO_OUTPUT     = $00000004; ///< skip bitstream encoding
+  CODEC_FLAG2_LOCAL_HEADER  = $00000008; ///< place global headers at every keyframe instead of in extradata
+  CODEC_FLAG2_BPYRAMID      = $00000010; ///< H.264 allow b-frames to be used as references
+  CODEC_FLAG2_WPRED         = $00000020; ///< H.264 weighted biprediction for b-frames
+  CODEC_FLAG2_MIXED_REFS    = $00000040; ///< H.264 multiple references per partition
+  CODEC_FLAG2_8X8DCT        = $00000080; ///< H.264 high profile 8x8 transform
+  CODEC_FLAG2_FASTPSKIP     = $00000100; ///< H.264 fast pskip
+  CODEC_FLAG2_AUD           = $00000200; ///< H.264 access unit delimiters
+  CODEC_FLAG2_BRDO          = $00000400; ///< b-frame rate-distortion optimization
+  CODEC_FLAG2_INTRA_VLC     = $00000800; ///< use MPEG-2 intra VLC table
+  CODEC_FLAG2_MEMC_ONLY     = $00001000; ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
+  CODEC_FLAG2_DROP_FRAME_TIMECODE = $00002000; ///< timecode is in drop frame format.
+  CODEC_FLAG2_SKIP_RD       = $00004000; ///< RD optimal MB level residual skipping
+  CODEC_FLAG2_CHUNKS        = $00008000; ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
+  CODEC_FLAG2_NON_LINEAR_QUANT = $00010000; ///< Use MPEG-2 nonlinear quantizer.
+
+(* Unsupported options :
+ *              Syntax Arithmetic coding (SAC)
+ *              Reference Picture Selection
+ *              Independant Segment Decoding *)
+(* /Fx *)
+(* codec capabilities *)
+
+const
+  CODEC_CAP_DRAW_HORIZ_BAND = $0001; ///< decoder can use draw_horiz_band callback
+  (**
+   * Codec uses get_buffer() for allocating buffers.
+   * direct rendering method 1
+   *)
+  CODEC_CAP_DR1             = $0002;
+  (* if 'parse_only' field is true, then avcodec_parse_frame() can be used *)
+  CODEC_CAP_PARSE_ONLY      = $0004;
+  CODEC_CAP_TRUNCATED       = $0008;
+  (* codec can export data for HW decoding (XvMC) *)
+  CODEC_CAP_HWACCEL         = $0010;
+  (**
+   * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
+   * if this is not set, the codec is guranteed to never be feeded with NULL data
+   *)
+  CODEC_CAP_DELAY           = $0020;
+  (**
+   * Codec can be fed a final frame with a smaller size.
+   * This can be used to prevent truncation of the last audio samples.
+   *)
+  CODEC_CAP_SMALL_LAST_FRAME = $0040;
+
+   //the following defines may change, don't expect compatibility if you use them
+   MB_TYPE_INTRA4x4   = $001;
+   MB_TYPE_INTRA16x16 = $002; //FIXME h264 specific
+   MB_TYPE_INTRA_PCM  = $004; //FIXME h264 specific
+   MB_TYPE_16x16      = $008;
+   MB_TYPE_16x8       = $010;
+   MB_TYPE_8x16       = $020;
+   MB_TYPE_8x8        = $040;
+   MB_TYPE_INTERLACED = $080;
+   MB_TYPE_DIRECT2     = $100; //FIXME
+   MB_TYPE_ACPRED     = $200;
+   MB_TYPE_GMC        = $400;
+   MB_TYPE_SKIP       = $800;
+   MB_TYPE_P0L0       = $1000;
+   MB_TYPE_P1L0       = $2000;
+   MB_TYPE_P0L1       = $4000;
+   MB_TYPE_P1L1       = $8000;
+   MB_TYPE_L0         = (MB_TYPE_P0L0 or MB_TYPE_P1L0);
+   MB_TYPE_L1         = (MB_TYPE_P0L1 or MB_TYPE_P1L1);
+   MB_TYPE_L0L1       = (MB_TYPE_L0   or MB_TYPE_L1);
+   MB_TYPE_QUANT      = $0010000;
+   MB_TYPE_CBP        = $0020000;
+   //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
+
+type
+(**
+ * Pan Scan area.
+ * This specifies the area which should be displayed.
+ * Note there may be multiple such areas for one frame.
+ *)
+  PAVPanScan = ^TAVPanScan;
+  TAVPanScan = record {24}
+    (*** id.
+     * - encoding: set by user.
+     * - decoding: set by libavcodec. *)
+    id: integer;
+
+    (*** width and height in 1/16 pel
+     * - encoding: set by user.
+     * - decoding: set by libavcodec. *)
+    width: integer;
+    height: integer;
+
+    (*** position of the top left corner in 1/16 pel for up to 3 fields/frames.
+     * - encoding: set by user.
+     * - decoding: set by libavcodec. *)
+    position: array [0..2] of array [0..1] of smallint;
+  end;
+
+const
+  FF_QSCALE_TYPE_MPEG1	= 0;
+  FF_QSCALE_TYPE_MPEG2	= 1;
+  FF_QSCALE_TYPE_H264   = 2;
+
+  FF_BUFFER_TYPE_INTERNAL = 1;
+  FF_BUFFER_TYPE_USER     = 2; ///< Direct rendering buffers (image is (de)allocated by user)
+  FF_BUFFER_TYPE_SHARED   = 4; ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
+  FF_BUFFER_TYPE_COPY     = 8; ///< just a (modified) copy of some other buffer, don't dealloc anything.
+
+
+  FF_I_TYPE  = 1; // Intra
+  FF_P_TYPE  = 2; // Predicted
+  FF_B_TYPE  = 3; // Bi-dir predicted
+  FF_S_TYPE  = 4; // S(GMC)-VOP MPEG4
+  FF_SI_TYPE = 5;
+  FF_SP_TYPE = 6;
+
+  FF_BUFFER_HINTS_VALID    = $01; // Buffer hints value is meaningful (if 0 ignore)
+  FF_BUFFER_HINTS_READABLE = $02; // Codec will read from buffer
+  FF_BUFFER_HINTS_PRESERVE = $04; // User must not alter buffer content
+  FF_BUFFER_HINTS_REUSABLE = $08; // Codec will reuse the buffer (update)
+
+type
+  {**
+   * Audio Video Frame.
+   * New fields can be added to the end of FF_COMMON_FRAME with minor version
+   * bumps.
+   * Removal, reordering and changes to existing fields require a major
+   * version bump. No fields should be added into AVFrame before or after
+   * FF_COMMON_FRAME!
+   * sizeof(AVFrame) must not be used outside libav*.
+   *}
+  PAVFrame = ^TAVFrame;
+  TAVFrame = record {200}
+    (**
+     * pointer to the picture planes.
+     * This might be different from the first allocated byte
+     * - encoding:
+     * - decoding:
+     *)
+    data: array [0..3] of pbyte;
+    linesize: array [0..3] of integer;
+    (**
+     * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.
+     * This isn't used by libavcodec unless the default get/release_buffer() is used.
+     * - encoding:
+     * - decoding:
+     *)
+    base: array [0..3] of pbyte;
+    (**
+     * 1 -> keyframe, 0-> not
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     *)
+    key_frame: integer;
+    (**
+     * Picture type of the frame, see ?_TYPE below.
+     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).
+     * - decoding: Set by libavcodec.
+     *)
+    pict_type: integer;
+    (**
+     * presentation timestamp in time_base units (time when frame should be shown to user)
+     * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.
+     * - encoding: MUST be set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    pts: int64;
+    (**\
+     * picture number in bitstream order
+     * - encoding: set by
+     * - decoding: Set by libavcodec.
+     *)
+    coded_picture_number: integer;
+    (**
+     * picture number in display order
+     * - encoding: set by
+     * - decoding: Set by libavcodec.
+     *)
+    display_picture_number: integer;
+    (**
+     * quality (between 1 (good) and FF_LAMBDA_MAX (bad))
+     * - encoding: Set by libavcodec. for coded_picture (and set by user for input).
+     * - decoding: Set by libavcodec.
+     *)
+    quality: integer;
+    (**
+     * buffer age (1->was last buffer and dint change, 2->..., ...).
+     * Set to INT_MAX if the buffer has not been used yet.
+     * - encoding: unused
+     * - decoding: MUST be set by get_buffer().
+     *)
+    age: integer;
+    (**
+     * is this picture used as reference
+     * - encoding: unused
+     * - decoding: Set by libavcodec. (before get_buffer() call)).
+     *)
+    reference: integer;
+    (**
+     * QP table
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    qscale_table: PShortint;
+    (**
+     * QP store stride
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    qstride: integer;
+    (**
+     * mbskip_table[mb]>=1 if MB didn't change
+     * stride= mb_width = (width+15)>>4
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    mbskip_table: pbyte;
+    (**
+     * motion vector table
+     * @code
+     * example:
+     * int mv_sample_log2= 4 - motion_subsample_log2;
+     * int mb_width= (width+15)>>4;
+     * int mv_stride= (mb_width << mv_sample_log2) + 1;
+     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];
+     * @endcode
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    //int16_t (*motion_val[2])[2];
+    motion_val: array [0..1] of pointer;
+    (**
+     * macroblock type table
+     * mb_type_base + mb_width + 2
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    mb_type: PCardinal;
+    (**
+     * log2 of the size of the block which a single vector in motion_val represents:
+     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    motion_subsample_log2: byte;
+    (**
+     * for some private data of the user
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    opaque: pointer;
+    (**
+     * error
+     * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.
+     * - decoding: unused
+     *)
+    error: array [0..3] of uint64;
+    (**
+     * type of the buffer (to keep track of who has to deallocate data[*])
+     * - encoding: Set by the one who allocates it.
+     * - decoding: Set by the one who allocates it.
+     * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.
+     *)
+    type_: integer;
+    (**
+     * When decoding, this signals how much the picture must be delayed.
+     * extra_delay = repeat_pict / (2*fps)
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    repeat_pict: integer;
+    (**
+     *
+     *)
+    qscale_type: integer;
+    (**
+     * The content of the picture is interlaced.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec. (default 0)
+     *)
+    interlaced_frame: integer;
+    (**
+     * If the content is interlaced, is top field displayed first.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    top_field_first: integer;
+    (**
+     * Pan scan.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    pan_scan: PAVPanScan;
+    (**
+     * Tell user application that palette has changed from previous frame.
+     * - encoding: ??? (no palette-enabled encoder yet)
+     * - decoding: Set by libavcodec. (default 0).
+     *)
+    palette_has_changed: integer;
+    (**
+     * codec suggestion on buffer type if != 0
+     * - encoding: unused
+     * - decoding: Set by libavcodec. (before get_buffer() call)).
+     *)
+    buffer_hints: integer;
+    (**
+     * DCT coefficients
+     * - encoding: unused
+     * - decoding: Set by libavcodec.
+     *)
+    dct_coeff: PsmallInt;
+    (**
+     * motion referece frame index
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    ref_index: array [0..1] of PShortint;
+  end;
+
+const
+  DEFAULT_FRAME_RATE_BASE = 1001000;
+
+  FF_ASPECT_EXTENDED = 15;
+
+  FF_RC_STRATEGY_XVID = 1;
+
+  FF_BUG_AUTODETECT       = 1;  ///< autodetection
+  FF_BUG_OLD_MSMPEG4      = 2;
+  FF_BUG_XVID_ILACE       = 4;
+  FF_BUG_UMP4             = 8;
+  FF_BUG_NO_PADDING       = 16;
+  FF_BUG_AMV              = 32;
+  FF_BUG_AC_VLC           = 0;  ///< will be removed, libavcodec can now handle these non compliant files by default
+  FF_BUG_QPEL_CHROMA      = 64;
+  FF_BUG_STD_QPEL         = 128;
+  FF_BUG_QPEL_CHROMA2     = 256;
+  FF_BUG_DIRECT_BLOCKSIZE = 512;
+  FF_BUG_EDGE             = 1024;
+  FF_BUG_HPEL_CHROMA      = 2048;
+  FF_BUG_DC_CLIP          = 4096;
+  FF_BUG_MS               = 8192; ///< workaround various bugs in microsofts broken decoders
+  //FF_BUG_FAKE_SCALABILITY = 16 //Autodetection should work 100%.
+
+  FF_COMPLIANCE_VERY_STRICT   =  2; ///< strictly conform to a older more strict version of the spec or reference software
+  FF_COMPLIANCE_STRICT        =  1; ///< strictly conform to all the things in the spec no matter what consequences
+  FF_COMPLIANCE_NORMAL        =  0;
+  FF_COMPLIANCE_INOFFICIAL    = -1; ///< allow inofficial extensions
+  FF_COMPLIANCE_EXPERIMENTAL  = -2; ///< allow non standarized experimental things
+
+  FF_ER_CAREFUL         = 1;
+  FF_ER_COMPLIANT       = 2;
+  FF_ER_AGGRESSIVE      = 3;
+  FF_ER_VERY_AGGRESSIVE = 4;
+
+  FF_DCT_AUTO    = 0;
+  FF_DCT_FASTINT = 1;
+  FF_DCT_INT     = 2;
+  FF_DCT_MMX     = 3;
+  FF_DCT_MLIB    = 4;
+  FF_DCT_ALTIVEC = 5;
+  FF_DCT_FAAN    = 6;
+
+  FF_IDCT_AUTO         = 0;
+  FF_IDCT_INT          = 1;
+  FF_IDCT_SIMPLE       = 2;
+  FF_IDCT_SIMPLEMMX    = 3;
+  FF_IDCT_LIBMPEG2MMX  = 4;
+  FF_IDCT_PS2          = 5;
+  FF_IDCT_MLIB         = 6;
+  FF_IDCT_ARM          = 7;
+  FF_IDCT_ALTIVEC      = 8;
+  FF_IDCT_SH4          = 9;
+  FF_IDCT_SIMPLEARM    = 10;
+  FF_IDCT_H264         = 11;
+  FF_IDCT_VP3          = 12;
+  FF_IDCT_IPP          = 13;
+  FF_IDCT_XVIDMMX      = 14;
+  FF_IDCT_CAVS         = 15;
+  FF_IDCT_SIMPLEARMV5TE= 16;
+  FF_IDCT_SIMPLEARMV6  = 17;
+  FF_IDCT_SIMPLEVIS    = 18;
+  FF_IDCT_WMV2         = 19;
+
+  FF_EC_GUESS_MVS   = 1;
+  FF_EC_DEBLOCK     = 2;
+
+  FF_MM_FORCE	      = $80000000; (* force usage of selected flags (OR) *)
+  (* lower 16 bits - CPU features *)
+  FF_MM_MMX	        = $0001; ///< standard MMX
+  FF_MM_3DNOW	      = $0004; ///< AMD 3DNOW
+  FF_MM_MMXEXT	    = $0002; ///< SSE integer functions or AMD MMX ext
+  FF_MM_SSE	        = $0008; ///< SSE functions
+  FF_MM_SSE2	      = $0010; ///< PIV SSE2 functions
+  FF_MM_3DNOWEXT	  = $0020; ///< AMD 3DNowExt
+  FF_MM_SSE3        = $0040; ///< Prescott SSE3 functions
+  FF_MM_SSSE3       = $0080; ///< Conroe SSSE3 functions
+  FF_MM_IWMMXT	    = $0100; ///< XScale IWMMXT
+
+  FF_PRED_LEFT   = 0;
+  FF_PRED_PLANE  = 1;
+  FF_PRED_MEDIAN = 2;
+
+  FF_DEBUG_PICT_INFO    = 1;
+  FF_DEBUG_RC           = 2;
+  FF_DEBUG_BITSTREAM    = 4;
+  FF_DEBUG_MB_TYPE      = 8;
+  FF_DEBUG_QP           = 16;
+  FF_DEBUG_MV           = 32;
+  FF_DEBUG_DCT_COEFF    = $00000040;
+  FF_DEBUG_SKIP         = $00000080;
+  FF_DEBUG_STARTCODE    = $00000100;
+  FF_DEBUG_PTS          = $00000200;
+  FF_DEBUG_ER           = $00000400;
+  FF_DEBUG_MMCO         = $00000800;
+  FF_DEBUG_BUGS         = $00001000;
+  FF_DEBUG_VIS_QP       = $00002000;
+  FF_DEBUG_VIS_MB_TYPE  = $00004000;
+
+  FF_DEBUG_VIS_MV_P_FOR  = $00000001; //visualize forward predicted MVs of P frames
+  FF_DEBUG_VIS_MV_B_FOR  = $00000002; //visualize forward predicted MVs of B frames
+  FF_DEBUG_VIS_MV_B_BACK = $00000004; //visualize backward predicted MVs of B frames
+
+  FF_CMP_SAD    = 0;
+  FF_CMP_SSE    = 1;
+  FF_CMP_SATD   = 2;
+  FF_CMP_DCT    = 3;
+  FF_CMP_PSNR   = 4;
+  FF_CMP_BIT    = 5;
+  FF_CMP_RD     = 6;
+  FF_CMP_ZERO   = 7;
+  FF_CMP_VSAD   = 8;
+  FF_CMP_VSSE   = 9;
+  FF_CMP_NSSE   = 10;
+  FF_CMP_W53    = 11;
+  FF_CMP_W97    = 12;
+  FF_CMP_DCTMAX = 13;
+  FF_CMP_DCT264 = 14;
+  FF_CMP_CHROMA = 256;
+
+  FF_DTG_AFD_SAME         = 8;
+  FF_DTG_AFD_4_3          = 9;
+  FF_DTG_AFD_16_9         = 10;
+  FF_DTG_AFD_14_9         = 11;
+  FF_DTG_AFD_4_3_SP_14_9  = 13;
+  FF_DTG_AFD_16_9_SP_14_9 = 14;
+  FF_DTG_AFD_SP_4_3       = 15;
+
+  FF_DEFAULT_QUANT_BIAS   = 999999;
+
+  FF_LAMBDA_SHIFT   = 7;
+  FF_LAMBDA_SCALE   = (1 shl FF_LAMBDA_SHIFT);
+  FF_QP2LAMBDA      = 118; ///< factor to convert from H.263 QP to lambda
+  FF_LAMBDA_MAX     = (256 * 128 - 1);
+
+  FF_QUALITY_SCALE  = FF_LAMBDA_SCALE; //FIXME maybe remove
+
+  FF_CODER_TYPE_VLC     = 0;
+  FF_CODER_TYPE_AC      = 1;
+  FF_CODER_TYPE_RAW     = 2;
+  FF_CODER_TYPE_RLE     = 3;
+  FF_CODER_TYPE_DEFLATE = 4;
+
+  SLICE_FLAG_CODED_ORDER    = $0001; ///< draw_horiz_band() is called in coded order instead of display
+  SLICE_FLAG_ALLOW_FIELD    = $0002; ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
+  SLICE_FLAG_ALLOW_PLANE    = $0004; ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
+
+  FF_MB_DECISION_SIMPLE = 0;        ///< uses mb_cmp
+  FF_MB_DECISION_BITS   = 1;        ///< chooses the one which needs the fewest bits
+  FF_MB_DECISION_RD     = 2;        ///< rate distoration
+
+  FF_AA_AUTO    = 0;
+  FF_AA_FASTINT = 1; //not implemented yet
+  FF_AA_INT     = 2;
+  FF_AA_FLOAT   = 3;
+
+  FF_PROFILE_UNKNOWN  = -99;
+  FF_PROFILE_AAC_MAIN = 0;
+  FF_PROFILE_AAC_LOW  = 1;
+  FF_PROFILE_AAC_SSR  = 2;
+  FF_PROFILE_AAC_LTP  = 3;
+
+  FF_LEVEL_UNKNOWN    = -99;
+
+  X264_PART_I4X4 = $001;  (* Analyse i4x4 *)
+  X264_PART_I8X8 = $002;  (* Analyse i8x8 (requires 8x8 transform) *)
+  X264_PART_P8X8 = $010;  (* Analyse p16x8, p8x16 and p8x8 *)
+  X264_PART_P4X4 = $020;  (* Analyse p8x4, p4x8, p4x4 *)
+  X264_PART_B8X8 = $100;  (* Analyse b16x8, b8x16 and b8x8 *)
+
+  FF_COMPRESSION_DEFAULT = -1;
+
+const
+  AVPALETTE_SIZE = 1024;
+  AVPALETTE_COUNT = 256;
+
+type
+(**
+ * AVPaletteControl
+ * This structure defines a method for communicating palette changes
+ * between and demuxer and a decoder.
+ *
+ * @deprecated Use AVPacket to send palette changes instead.
+ * This is totally broken.
+ *)
+  PAVPaletteControl = ^TAVPaletteControl;
+  TAVPaletteControl = record
+    (* demuxer sets this to 1 to indicate the palette has changed;
+     * decoder resets to 0 *)
+    palette_changed: integer;
+
+    (* 4-byte ARGB palette entries, stored in native byte order; note that
+     * the individual palette components should be on a 8-bit scale; if
+     * the palette data comes from a IBM VGA native format, the component
+     * data is probably 6 bits in size and needs to be scaled *)
+    palette: array [0..AVPALETTE_COUNT - 1] of cardinal;
+  end; {deprecated;}
+
+type
+  PAVClass = ^TAVClass;
+  PAVCodecContext = ^TAVCodecContext;
+
+  PAVCodec = ^TAVCodec;
+
+  // int[4]
+  PQuadIntArray = ^TQuadIntArray;
+  TQuadIntArray = array[0..3] of integer;
+  // int (*func)(struct AVCodecContext *c2, void *arg)
+  TExecuteFunc = function(c2: PAVCodecContext; arg: Pointer): integer; cdecl;
+
+  TAVClass = record {12}
+    class_name: pchar;
+    (* actually passing a pointer to an AVCodecContext
+					or AVFormatContext, which begin with an AVClass.
+					Needed because av_log is in libavcodec and has no visibility
+					of AVIn/OutputFormat *)
+    item_name: function (): pchar; cdecl;
+    option: PAVOption;
+  end;
+
+  (**
+   * main external API structure.
+   * New fields can be added to the end with minor version bumps.
+   * Removal, reordering and changes to existing fields require a major
+   * version bump.
+   * sizeof(AVCodecContext) must not be used outside libav*.
+   *)
+  TAVCodecContext = record {720}
+    (**
+     * information on struct for av_log
+     * - set by avcodec_alloc_context
+     *)
+    av_class: PAVClass;
+    (**
+     * the average bitrate
+     * - encoding: Set by user; unused for constant quantizer encoding.
+     * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
+     *)
+    bit_rate: integer;
+
+    (**
+     * number of bits the bitstream is allowed to diverge from the reference.
+     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
+     * - encoding: Set by user; unused for constant quantizer encoding.
+     * - decoding: unused
+     *)
+    bit_rate_tolerance: integer;
+
+    (**
+     * CODEC_FLAG_*.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    flags: integer;
+
+    (**
+     * Some codecs need additional format info. It is stored here.
+     * If any muxer uses this then ALL demuxers/parsers AND encoders for the
+     * specific codec MUST set it correctly otherwise stream copy breaks.
+     * In general use of this field by muxers is not recommanded.
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec. (FIXME: Is this OK?)
+     *)
+    sub_id: integer;
+
+    (**
+     * Motion estimation algorithm used for video coding.
+     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
+     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
+     * - encoding: MUST be set by user.
+     * - decoding: unused
+     *)
+    me_method: integer;
+
+    (**
+     * some codecs need / can use extradata like Huffman tables.
+     * mjpeg: Huffman tables
+     * rv10: additional flags
+     * mpeg4: global headers (they can be in the bitstream or here)
+     * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
+     * than extradata_size to avoid prolems if it is read with the bitstream reader.
+     * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
+     * - encoding: Set/allocated/freed by libavcodec.
+     * - decoding: Set/allocated/freed by user.
+     *)
+    extradata: pbyte;
+    extradata_size: integer;
+
+    (**
+     * This is the fundamental unit of time (in seconds) in terms
+     * of which frame timestamps are represented. For fixed-fps content,
+     * timebase should be 1/framerate and timestamp increments should be
+     * identically 1.
+     * - encoding: MUST be set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    time_base: TAVRational;
+
+    (* video only *)
+    (**
+     * picture width / height.
+     * - encoding: MUST be set by user.
+     * - decoding: Set by libavcodec.
+     * Note: For compatibility it is possible to set this instead of
+     * coded_width/height before decoding.
+     *)
+    width, height: integer;
+
+    (**
+     * the number of pictures in a group of pictures, or 0 for intra_only
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    gop_size: integer;
+
+    (**
+     * Pixel format, see PIX_FMT_xxx.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    pix_fmt: TAVPixelFormat;
+
+    (**
+     * Frame rate emulation. If not zero, the lower layer (i.e. format handler)
+     * has to read frames at native frame rate.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rate_emu: integer;
+
+    (**
+     * If non NULL, 'draw_horiz_band' is called by the libavcodec
+     * decoder to draw a horizontal band. It improves cache usage. Not
+     * all codecs can do that. You must check the codec capabilities
+     * beforehand.
+     * - encoding: unused
+     * - decoding: Set by user.
+     * @param height the height of the slice
+     * @param y the y position of the slice
+     * @param type 1->top field, 2->bottom field, 3->frame
+     * @param offset offset into the AVFrame.data from which the slice should be read
+     *)
+    draw_horiz_band: procedure (s: PAVCodecContext;
+                                {const} src: PAVFrame; offset: PQuadIntArray;
+                                y: integer; type_: integer; height: integer); cdecl;
+
+    (* audio only *)
+    sample_rate: integer; ///< samples per second
+    channels: integer;
+    
+    (**
+     * audio sample format
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    sample_fmt: TSampleFormat;  ///< sample format, currenly unused
+
+    (* The following data should not be initialized. *)
+    (**
+     * Samples per packet, initialized when calling 'init'.
+     *)
+    frame_size: integer;
+    frame_number: integer;   ///< audio or video frame number
+    real_pict_num: integer;  ///< returns the real picture number of previous encoded frame
+
+    (**
+     * Number of frames the decoded output will be delayed relative to
+     * the encoded input.
+     * - encoding: Set by libavcodec.
+     * - decoding: unused
+     *)
+    delay: integer;
+
+    (* - encoding parameters *)
+    qcompress: single;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
+    qblur: single;      ///< amount of qscale smoothing over time (0.0-1.0)
+
+    (**
+     * minimum quantizer
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    qmin: integer;
+
+   (**
+     * maximum quantizer
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+   qmax: integer;
+
+    (**
+     * maximum quantizer difference between frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    max_qdiff: integer;
+
+    (**
+     * maximum number of B-frames between non-B-frames
+     * Note: The output will be delayed by max_b_frames+1 relative to the input.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    max_b_frames: integer;
+
+    (**
+     * qscale factor between IP and B-frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    b_quant_factor: single;
+
+    (** obsolete FIXME remove *)
+    rc_strategy: integer;
+
+    b_frame_strategy: integer;
+
+    (**
+     * hurry up amount
+     * - encoding: unused
+     * - decoding: Set by user. 1-> Skip B-frames, 2-> Skip IDCT/dequant too, 5-> Skip everything except header
+     * @deprecated Deprecated in favor of skip_idct and skip_frame.
+     *)
+    hurry_up: integer;
+
+    codec: PAVCodec;
+
+    priv_data: pointer;
+
+    {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+    (* unused, FIXME remove*)
+    rtp_mode: integer;
+    {$IFEND}
+
+    rtp_payload_size: integer;  (* The size of the RTP payload: the coder will  *)
+                                (* do it's best to deliver a chunk with size    *)
+                                (* below rtp_payload_size, the chunk will start *)
+                                (* with a start code on some codecs like H.263  *)
+                                (* This doesn't take account of any particular  *)
+                                (* headers inside the transmited RTP payload    *)
+
+
+    (* The RTP callback: This function is called   *)
+    (* every time the encoder has a packet to send *)
+    (* Depends on the encoder if the data starts   *)
+    (* with a Start Code (it should) H.263 does.   *)
+    (* mb_nb contains the number of macroblocks    *)
+    (* encoded in the RTP payload                  *)
+    rtp_callback: procedure (avctx: PAVCodecContext; data: pointer;
+                             size: integer; mb_nb: integer); cdecl;
+
+    (* statistics, used for 2-pass encoding *)
+    mv_bits: integer;
+    header_bits: integer;
+    i_tex_bits: integer;
+    p_tex_bits: integer;
+    i_count: integer;
+    p_count: integer;
+    skip_count: integer;
+    misc_bits: integer;
+
+    (**
+     * number of bits used for the previously encoded frame
+     * - encoding: Set by libavcodec.
+     * - decoding: unused
+     *)
+    frame_bits: integer;
+
+    (**
+     * Private data of the user, can be used to carry app specific stuff.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    opaque: pointer;
+
+    codec_name: array [0..31] of char;
+    codec_type: TCodecType; (* see CODEC_TYPE_xxx *)
+    codec_id: TCodecID; (* see CODEC_ID_xxx *)
+
+    (**
+     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+     * This is used to work around some encoder bugs.
+     * A demuxer should set this to what is stored in the field used to identify the codec.
+     * If there are multiple such fields in a container then the demuxer should choose the one
+     * which maximizes the information about the used codec.
+     * If the codec tag field in a container is larger then 32 bits then the demuxer should
+     * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
+     * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
+     * first.
+     * - encoding: Set by user, if not then the default based on codec_id will be used.
+     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+     *)
+    codec_tag: cardinal;  // ìîæíî array [0..3] of char - òîãäà âèäíî FOURCC
+
+    (**
+     * Work around bugs in encoders which sometimes cannot be detected automatically.
+     * - encoding: Set by user
+     * - decoding: Set by user
+     *)
+    workaround_bugs: integer;
+
+    (**
+     * luma single coefficient elimination threshold
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    luma_elim_threshold: integer;
+
+    (**
+     * chroma single coeff elimination threshold
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    chroma_elim_threshold: integer;
+
+    (**
+     * strictly follow the standard (MPEG4, ...).
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    strict_std_compliance: integer;
+
+    (**
+     * qscale offset between IP and B-frames
+     * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
+     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    b_quant_offset: single;
+
+    (**
+     * Error resilience; higher values will detect more errors but may
+     * misdetect some more or less valid parts as errors.
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    error_resilience: integer;
+
+    (**
+     * Called at the beginning of each frame to get a buffer for it.
+     * If pic.reference is set then the frame will be read later by libavcodec.
+     * avcodec_align_dimensions() should be used to find the required width and
+     * height, as they normally need to be rounded up to the next multiple of 16.
+     * - encoding: unused
+     * - decoding: Set by libavcodec., user can override.
+     *)
+    get_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl;
+
+    (**
+     * Called to release buffers which where allocated with get_buffer.
+     * A released buffer can be reused in get_buffer().
+     * pic.data[*] must be set to NULL.
+     * - encoding: unused
+     * - decoding: Set by libavcodec., user can override.
+     *)
+    release_buffer: procedure (c: PAVCodecContext; pic: PAVFrame); cdecl;
+
+    (**
+     * If 1 the stream has a 1 frame delay during decoding.
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     *)
+    has_b_frames: integer;
+
+    (**
+     * number of bytes per packet if constant and known or 0
+     * Used by some WAV based audio codecs.
+     *)
+    block_align: integer;
+
+    parse_only: integer; (* - decoding only: if true, only parsing is done
+                       (function avcodec_parse_frame()). The frame
+                       data is returned. Only MPEG codecs support this now. *)
+
+    (**
+     * 0-> h263 quant 1-> mpeg quant
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mpeg_quant: integer;
+
+    (**
+     * pass1 encoding statistics output buffer
+     * - encoding: Set by libavcodec.
+     * - decoding: unused
+     *)
+    stats_out: pchar;
+
+    (**
+     * pass2 encoding statistics input buffer
+     * Concatenated stuff from stats_out of pass1 should be placed here.
+     * - encoding: Allocated/set/freed by user.
+     * - decoding: unused
+     *)
+    stats_in: pchar;
+
+    (**
+     * ratecontrol qmin qmax limiting method
+     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_qsquish: single;
+
+    rc_qmod_amp: single;
+    rc_qmod_freq: integer;
+
+    (**
+     * ratecontrol override, see RcOverride
+     * - encoding: Allocated/set/freed by user.
+     * - decoding: unused
+     *)
+    rc_override: PRcOverride;
+    rc_override_count: integer;
+
+    (**
+     * rate control equation
+     * - encoding: Set by user
+     * - decoding: unused
+     *)
+    rc_eq: pchar;
+
+    (**
+     * maximum bitrate
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_max_rate: integer;
+
+    (**
+     * minimum bitrate
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_min_rate: integer;
+
+    (**
+     * decoder bitstream buffer size
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_buffer_size: integer;
+    rc_buffer_aggressivity: single;
+
+    (**
+     * qscale factor between P and I-frames
+     * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
+     * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    i_quant_factor: single;
+
+    (**
+     * qscale offset between P and I-frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    i_quant_offset: single;
+
+    (**
+     * initial complexity for pass1 ratecontrol
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_initial_cplx: single;
+
+    (**
+     * DCT algorithm, see FF_DCT_* below
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    dct_algo: integer;
+
+    (**
+     * luminance masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    lumi_masking: single;
+
+    (**
+     * temporary complexity masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    temporal_cplx_masking: single;
+
+    (**
+     * spatial complexity masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    spatial_cplx_masking: single;
+
+    (**
+     * p block masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    p_masking: single;
+
+    (**
+     * darkness masking (0-> disabled)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    dark_masking: single;
+
+    {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+    (* for binary compatibility *)
+    unused: integer;
+    {$IFEND}
+
+    (**
+     * IDCT algorithm, see FF_IDCT_* below.
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    idct_algo: integer;
+
+    (**
+     * slice count
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by user (or 0).
+     *)
+    slice_count: integer;
+
+    (**
+     * slice offsets in the frame in bytes
+     * - encoding: Set/allocated by libavcodec.
+     * - decoding: Set/allocated by user (or NULL).
+     *)
+    slice_offset: Pinteger;
+
+    (**
+     * error concealment flags
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    error_concealment: integer;
+
+    (**
+     * dsp_mask could be add used to disable unwanted CPU features
+     * CPU features (i.e. MMX, SSE. ...)
+     *
+     * With the FORCE flag you may instead enable given CPU features.
+     * (Dangerous: Usable in case of misdetection, improper usage however will
+     * result into program crash.)
+     *)
+    dsp_mask: cardinal;
+
+    (**
+     * bits per sample/pixel from the demuxer (needed for huffyuv).
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by user.
+     *)
+     bits_per_sample: integer;
+
+    (**
+     * prediction method (needed for huffyuv)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+     prediction_method: integer;
+
+    (**
+     * sample aspect ratio (0 if unknown)
+     * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+    sample_aspect_ratio: TAVRational;
+
+    (**
+     * the picture in the bitstream
+     * - encoding: Set by libavcodec.
+     * - decoding: Set by libavcodec.
+     *)
+    coded_frame: PAVFrame;
+
+    (**
+     * debug
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    debug: integer;
+
+    (**
+     * debug
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    debug_mv: integer;
+
+    (**
+     * error
+     * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
+     * - decoding: unused
+     *)
+    error: array [0..3] of uint64;
+
+    (**
+     * minimum MB quantizer
+     * - encoding: unused
+     * - decoding: unused
+     *)
+    mb_qmin: integer;
+
+    (**
+     * maximum MB quantizer
+     * - encoding: unused
+     * - decoding: unused
+     *)
+    mb_qmax: integer;
+
+    (**
+     * motion estimation comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_cmp: integer;
+
+    (**
+     * subpixel motion estimation comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_sub_cmp: integer;
+    (**
+     * macroblock comparison function (not supported yet)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mb_cmp: integer;
+    (**
+     * interlaced DCT comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    ildct_cmp: integer;
+
+    (**
+     * ME diamond size & shape
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    dia_size: integer;
+
+    (**
+     * amount of previous MV predictors (2a+1 x 2a+1 square)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    last_predictor_count: integer;
+
+    (**
+     * prepass for motion estimation
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    pre_me: integer;
+
+    (**
+     * motion estimation prepass comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_pre_cmp: integer;
+
+    (**
+     * ME prepass diamond size & shape
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    pre_dia_size: integer;
+
+    (**
+     * subpel ME quality
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_subpel_quality: integer;
+
+    (**
+     * callback to negotiate the pixelFormat
+     * @param fmt is the list of formats which are supported by the codec,
+     * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
+     * The first is always the native one.
+     * @return the chosen format
+     * - encoding: unused
+     * - decoding: Set by user, if not set the native format will be chosen.
+     *)
+    get_format: function (s: PAVCodecContext; {const} fmt: PAVPixelFormat): TAVPixelFormat; cdecl;
+
+    (**
+     * DTG active format information (additional aspect ratio
+     * information only used in DVB MPEG-2 transport streams)
+     * 0 if not set.
+     *
+     * - encoding: unused
+     * - decoding: Set by decoder.
+     *)
+    dtg_active_format: integer;
+
+    (**
+     * maximum motion estimation search range in subpel units
+     * If 0 then no limit.
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_range: integer;
+
+    (**
+     * intra quantizer bias
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    intra_quant_bias: integer;
+
+    (**
+     * inter quantizer bias
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    inter_quant_bias: integer;
+
+    (**
+     * color table ID
+     * - encoding: unused
+     * - decoding: Which clrtable should be used for 8bit RGB images.
+     *             Tables have to be stored somewhere. FIXME
+     *)
+    color_table_id: integer;
+
+    (**
+     * internal_buffer count
+     * Don't touch, used by libavcodec default_get_buffer().
+     *)
+    internal_buffer_count: integer;
+
+    (**
+     * internal_buffers
+     * Don't touch, used by libavcodec default_get_buffer().
+     *)
+    internal_buffer: pointer;
+
+    (**
+     * Global quality for codecs which cannot change it per frame.
+     * This should be proportional to MPEG-1/2/4 qscale.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    global_quality: integer;
+
+    (**
+     * coder type
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    coder_type: integer;
+
+    (**
+     * context model
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    context_model: integer;
+
+    {
+    (**
+     *
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    realloc: function (s: PAVCodecContext; buf: Pbyte; buf_size: integer): Pbyte; cdecl;
+    }
+
+    (**
+     * slice flags
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    slice_flags: integer;
+
+    (**
+     * XVideo Motion Acceleration
+     * - encoding: forbidden
+     * - decoding: set by decoder
+     *)
+    xvmc_acceleration: integer;
+
+    (**
+     * macroblock decision mode
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mb_decision: integer;
+
+    (**
+     * custom intra quantization matrix
+     * - encoding: Set by user, can be NULL.
+     * - decoding: Set by libavcodec.
+     *)
+    intra_matrix: Pword;
+
+    (**
+     * custom inter quantization matrix
+     * - encoding: Set by user, can be NULL.
+     * - decoding: Set by libavcodec.
+     *)
+    inter_matrix: Pword;
+
+    (**
+     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+     * This is used to work around some encoder bugs.
+     * - encoding: unused
+     * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+     *)
+    stream_codec_tag: array [0..3] of char; //cardinal;
+
+    (**
+     * scene change detection threshold
+     * 0 is default, larger means fewer detected scene changes.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    scenechange_threshold: integer;
+
+    (**
+     * minimum Lagrange multipler
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    lmin: integer;
+
+    (**
+     * maximum Lagrange multipler
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    lmax: integer;
+
+    (**
+     * palette control structure
+     * - encoding: ??? (no palette-enabled encoder yet)
+     * - decoding: Set by user.
+     *)
+    palctrl: PAVPaletteControl;
+
+    (**
+     * noise reduction strength
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    noise_reduction: integer;
+
+    (**
+     * Called at the beginning of a frame to get cr buffer for it.
+     * Buffer type (size, hints) must be the same. libavcodec won't check it.
+     * libavcodec will pass previous buffer in pic, function should return
+     * same buffer or new buffer with old frame "painted" into it.
+     * If pic.data[0] == NULL must behave like get_buffer().
+     * - encoding: unused
+     * - decoding: Set by libavcodec., user can override
+     *)
+    reget_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl;
+
+    (**
+     * Number of bits which should be loaded into the rc buffer before decoding starts.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    rc_initial_buffer_occupancy: integer;
+
+    (**
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    inter_threshold: integer;
+
+    (**
+     * CODEC_FLAG2_*
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    flags2: integer;
+
+    (**
+     * Simulates errors in the bitstream to test error concealment.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    error_rate: integer;
+
+    (**
+     * MP3 antialias algorithm, see FF_AA_* below.
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    antialias_algo: integer;
+
+    (**
+     * quantizer noise shaping
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    quantizer_noise_shaping: integer;
+
+    (**
+     * thread count
+     * is used to decide how many independent tasks should be passed to execute()
+     * - encoding: Set by user.
+     * - decoding: Set by user.
+     *)
+    thread_count: integer;
+
+    (**
+     * The codec may call this to execute several independent things.
+     * It will return only after finishing all tasks.
+     * The user may replace this with some multithreaded implementation,
+     * the default implementation will execute the parts serially.
+     * @param count the number of things to execute
+     * - encoding: Set by libavcodec, user can override.
+     * - decoding: Set by libavcodec, user can override.
+     *)
+    execute: function (c: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: PInteger; count: integer): integer; cdecl;
+
+    (**
+     * thread opaque
+     * Can be used by execute() to store some per AVCodecContext stuff.
+     * - encoding: set by execute()
+     * - decoding: set by execute()
+     *)
+    thread_opaque: pointer;
+
+    (**
+     * Motion estimation threshold below which no motion estimation is
+     * performed, but instead the user specified motion vectors are used.
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+     me_threshold: integer;
+
+    (**
+     * Macroblock threshold below which the user specified macroblock types will be used.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+     mb_threshold: integer;
+
+    (**
+     * precision of the intra DC coefficient - 8
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+     intra_dc_precision: integer;
+
+    (**
+     * noise vs. sse weight for the nsse comparsion function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+     nsse_weight: integer;
+
+    (**
+     * Number of macroblock rows at the top which are skipped.
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+     skip_top: integer;
+
+    (**
+     * Number of macroblock rows at the bottom which are skipped.
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+     skip_bottom: integer;
+
+    (**
+     * profile
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+     profile: integer;
+
+    (**
+     * level
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     *)
+     level: integer;
+
+    (**
+     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+     lowres: integer;
+
+    (**
+     * Bitstream width / height, may be different from width/height if lowres
+     * or other things are used.
+     * - encoding: unused
+     * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
+     *)
+    coded_width, coded_height: integer;
+
+    (**
+     * frame skip threshold
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    frame_skip_threshold: integer;
+
+    (**
+     * frame skip factor
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    frame_skip_factor: integer;
+
+    (**
+     * frame skip exponent
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    frame_skip_exp: integer;
+
+    (**
+     * frame skip comparison function
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    frame_skip_cmp: integer;
+
+    (**
+     * Border processing masking, raises the quantizer for mbs on the borders
+     * of the picture.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    border_masking: single;
+
+    (**
+     * minimum MB lagrange multipler
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mb_lmin: integer;
+
+    (**
+     * maximum MB lagrange multipler
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mb_lmax: integer;
+
+    (**
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    me_penalty_compensation: integer;
+
+    (**
+     *
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    skip_loop_filter: TAVDiscard;
+
+    (**
+     *
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    skip_idct: TAVDiscard;
+
+    (**
+     *
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    skip_frame: TAVDiscard;
+
+    (**
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    bidir_refine: integer;
+
+    (**
+     *
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    brd_scale: integer;
+
+    (**
+     * constant rate factor - quality-based VBR - values ~correspond to qps
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    {$IF LIBAVCODEC_VERSION >= 51021000} // 51.21.0
+    crf: single;
+    {$ELSE}
+    crf: integer;
+    {$IFEND}
+
+    (**
+     * constant quantization parameter rate control method
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    cqp: integer;
+
+    (**
+     * minimum GOP size
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    keyint_min: integer;
+
+    (**
+     * number of reference frames
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    refs: integer;
+
+    (**
+     * chroma qp offset from luma
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    chromaoffset: integer;
+
+    (**
+     * Influences how often B-frames are used.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    bframebias: integer;
+
+    (**
+     * trellis RD quantization
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    trellis: integer;
+
+    (**
+     * Reduce fluctuations in qp (before curve compression).
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    complexityblur: single;
+
+    (**
+     * in-loop deblocking filter alphac0 parameter
+     * alpha is in the range -6...6
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    deblockalpha: integer;
+
+    (**
+     * in-loop deblocking filter beta parameter
+     * beta is in the range -6...6
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    deblockbeta: integer;
+
+    (**
+     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    partitions: integer;
+
+    (**
+     * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal)
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    directpred: integer;
+
+    (**
+     * Audio cutoff bandwidth (0 means "automatic")
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    cutoff: integer;
+
+    (**
+     * Multiplied by qscale for each frame and added to scene_change_score.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    scenechange_factor: integer;
+
+    (**
+     *
+     * Note: Value depends upon the compare function used for fullpel ME.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    mv0_threshold: integer;
+
+    (**
+     * Adjusts sensitivity of b_frame_strategy 1.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    b_sensitivity: integer;
+
+    (**
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    compression_level: integer;
+
+    (**
+     * Sets whether to use LPC mode - used by FLAC encoder.
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    use_lpc: integer;
+
+    (**
+     * LPC coefficient precision - used by FLAC encoder
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    lpc_coeff_precision: integer;
+
+    (**
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    min_prediction_order: integer;
+
+    (**
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    max_prediction_order: integer;
+
+    (**
+     * search method for selecting prediction order
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    prediction_order_method: integer;
+
+    (**
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    min_partition_order: integer;
+
+    (**
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    max_partition_order: integer;
+
+    {$IF LIBAVCODEC_VERSION >= 51026000} // 51.26.0
+    (**
+     * GOP timecode frame start number, in non drop frame format
+     * - encoding: Set by user.
+     * - decoding: unused
+     *)
+    timecode_frame_start: int64;
+    {$IFEND}
+
+    {$IF LIBAVCODEC_VERSION >= 51042000} // 51.42.0
+    (**
+     * Decoder should decode to this many channels if it can (0 for default)
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    request_channels: integer;
+    {$IFEND}
+
+    {$IF LIBAVCODEC_VERSION > 51049000} // > 51.49.0
+    (**
+     * Percentage of dynamic range compression to be applied by the decoder.
+     * The default value is 1.0, corresponding to full compression.
+     * - encoding: unused
+     * - decoding: Set by user.
+     *)
+    drc_scale: Single;
+    {$IFEND}
+  end;
+
+(**
+ * AVCodec.
+ *)
+  TAVCodec = record
+    name: pchar;
+    type_: TCodecType;
+    id: TCodecID;
+    priv_data_size: integer;
+    init: function (avctx: PAVCodecContext): integer; cdecl; (* typo corretion by the Creative CAT *)
+    encode: function (avctx: PAVCodecContext; buf: pchar; buf_size: integer; data: pointer): integer; cdecl;
+    close: function (avctx: PAVCodecContext): integer; cdecl;
+    decode: function (avctx: PAVCodecContext; outdata: pointer; outdata_size: PInteger;
+                  {const} buf: pchar; buf_size: integer): integer; cdecl;
+    capabilities: integer;
+    next: PAVCodec;
+    flush: procedure (avctx: PAVCodecContext); cdecl;
+    {const} supported_framerates: PAVRational; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
+    {const} pix_fmts: PAVPixelFormat;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
+  end;
+
+(**
+ * four components are given, that's all.
+ * the last component is alpha
+ *)
+  PAVPicture = ^TAVPicture;
+  TAVPicture = record
+    data: array [0..3] of pchar;
+    linesize: array [0..3] of integer;       ///< number of bytes per line
+  end;
+
+type
+  PAVSubtitleRect = ^TAVSubtitleRect;
+  TAVSubtitleRect = record
+    x: word;
+    y: word;
+    w: word;
+    h: word;
+    nb_colors: word;
+    linesize: integer;
+    rgba_palette: PCardinal;
+    bitmap: pchar;
+  end;
+
+  PAVSubtitle = ^TAVSubtitle;
+  TAVSubtitle = record {20}
+    format: word; (* 0 = graphics *)
+    start_display_time: cardinal; (* relative to packet pts, in ms *)
+    end_display_time: cardinal; (* relative to packet pts, in ms *)
+    num_rects: cardinal;
+    rects: PAVSubtitleRect;
+  end;
+
+
+(* resample.c *)
+
+  PReSampleContext = pointer;
+  PAVResampleContext = pointer;
+  PImgReSampleContext = pointer;
+
+function audio_resample_init (output_channels: integer; input_channels: integer;
+                              output_rate: integer; input_rate: integer): PReSampleContext;
+  cdecl; external av__codec;
+
+function audio_resample (s: PReSampleContext; output: PSmallint; input: PSmallint; nb_samples: integer): integer;
+  cdecl; external av__codec;
+
+procedure audio_resample_close (s: PReSampleContext);
+  cdecl; external av__codec;
+
+
+function av_resample_init (out_rate: integer; in_rate: integer; filter_length: integer;
+                           log2_phase_count: integer; linear: integer; cutoff: double): PAVResampleContext;
+  cdecl; external av__codec;
+
+function av_resample (c: PAVResampleContext; dst: PSmallint; src: PSmallint; consumed: PInteger;
+                      src_size: integer; dst_size: integer; update_ctx: integer): integer;
+  cdecl; external av__codec;
+
+procedure av_resample_compensate (c: PAVResampleContext; sample_delta: integer;
+                                  compensation_distance: integer);
+  cdecl; external av__codec;
+
+procedure av_resample_close (c: PAVResampleContext);
+  cdecl; external av__codec;
+
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+(* YUV420 format is assumed ! *)
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+function img_resample_init (output_width: integer; output_height: integer;
+                           input_width: integer; input_height: integer): PImgReSampleContext;
+  cdecl; external av__codec; deprecated;
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+function img_resample_full_init (owidth: integer; oheight: integer;
+                                    iwidth: integer; iheight: integer;
+                                    topBand: integer; bottomBand: integer;
+                                    leftBand: integer; rightBand: integer;
+                                    padtop: integer; padbottom: integer;
+                                    padleft: integer; padright: integer): PImgReSampleContext;
+  cdecl; external av__codec; deprecated;
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+procedure img_resample (s: PImgReSampleContext; output: PAVPicture; {const} input: PAVPicture);
+  cdecl; external av__codec; deprecated;
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+procedure img_resample_close (s: PImgReSampleContext);
+  cdecl; external av__codec; deprecated;
+
+{$IFEND}
+
+(**
+ * Allocate memory for a picture.  Call avpicture_free to free it.
+ *
+ * @param picture the picture to be filled in.
+ * @param pix_fmt the format of the picture.
+ * @param width the width of the picture.
+ * @param height the height of the picture.
+ * @return Zero if successful, a negative value if not.
+ *)
+function avpicture_alloc (picture: PAVPicture; pix_fmt: TAVPixelFormat;
+                          width: integer; height: integer): integer;
+  cdecl; external av__codec;
+
+(**
+ * Free a picture previously allocated by avpicture_alloc().
+ *
+ * @param picture the AVPicture to be freed
+ *)
+procedure avpicture_free (picture: PAVPicture);
+  cdecl; external av__codec;
+
+(**
+ * Fill in the AVPicture fields.
+ * The fields of the given AVPicture are filled in by using the 'ptr' address
+ * which points to the image data buffer. Depending on the specified picture
+ * format, one or multiple image data pointers and line sizes will be set.
+ * If a planar format is specified, several pointers will be set pointing to
+ * the different picture planes and the line sizes of the different planes
+ * will be stored in the lines_sizes array.
+ *
+ * @param picture AVPicture whose fields are to be filled in
+ * @param ptr Buffer which will contain or contains the actual image data
+ * @param pix_fmt The format in which the picture data is stored.
+ * @param width the width of the image in pixels
+ * @param height the height of the image in pixels
+ * @return size of the image data in bytes
+ *)
+function avpicture_fill (picture: PAVPicture; ptr: pointer;
+                 pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
+  cdecl; external av__codec;
+
+function avpicture_layout ({const} src: PAVPicture; pix_fmt: TAVPixelFormat;
+                   width: integer; height: integer;
+                   dest: pchar; dest_size: integer): integer;
+  cdecl; external av__codec;
+
+(**
+ * Calculate the size in bytes that a picture of the given width and height
+ * would occupy if stored in the given picture format.
+ *
+ * @param pix_fmt the given picture format
+ * @param width the width of the image
+ * @param height the height of the image
+ * @return Image data size in bytes
+ *)
+function avpicture_get_size (pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
+  cdecl; external av__codec;
+
+procedure avcodec_get_chroma_sub_sample (pix_fmt: TAVPixelFormat; h_shift: Pinteger; v_shift: pinteger);
+  cdecl; external av__codec;
+
+function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): pchar;
+  cdecl; external av__codec;
+
+procedure avcodec_set_dimensions(s: PAVCodecContext; width: integer; height: integer);
+  cdecl; external av__codec;
+
+function avcodec_get_pix_fmt(const name: pchar): TAVPixelFormat;
+  cdecl; external av__codec;
+
+function avcodec_pix_fmt_to_codec_tag(p: TAVPixelFormat): cardinal;
+  cdecl; external av__codec;
+
+const
+  FF_LOSS_RESOLUTION  = $0001; {**< loss due to resolution change *}
+  FF_LOSS_DEPTH       = $0002; {**< loss due to color depth change *}
+  FF_LOSS_COLORSPACE  = $0004; {**< loss due to color space conversion *}
+  FF_LOSS_ALPHA       = $0008; {**< loss of alpha bits *}
+  FF_LOSS_COLORQUANT  = $0010; {**< loss due to color quantization *}
+  FF_LOSS_CHROMA      = $0020; {**< loss of chroma (e.g. RGB to gray conversion) *}
+
+(**
+ * Computes what kind of losses will occur when converting from one specific
+ * pixel format to another.
+ * When converting from one pixel format to another, information loss may occur.
+ * For example, when converting from RGB24 to GRAY, the color information will
+ * be lost. Similarly, other losses occur when converting from some formats to
+ * other formats. These losses can involve loss of chroma, but also loss of
+ * resolution, loss of color depth, loss due to the color space conversion, loss
+ * of the alpha bits or loss due to color quantization.
+ * avcodec_get_fix_fmt_loss() informs you about the various types of losses
+ * which will occur when converting from one pixel format to another.
+ *
+ * @param[in] dst_pix_fmt destination pixel format
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @return Combination of flags informing you what kind of losses will occur.
+ *)
+function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAVPixelFormat;
+                           has_alpha: integer): integer;
+  cdecl; external av__codec;
+
+(**
+ * Finds the best pixel format to convert to given a certain source pixel
+ * format.  When converting from one pixel format to another, information loss
+ * may occur.  For example, when converting from RGB24 to GRAY, the color
+ * information will be lost. Similarly, other losses occur when converting from
+ * some formats to other formats. avcodec_find_best_pix_fmt() searches which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ * The pixel formats from which it chooses one, are determined by the
+ * \p pix_fmt_mask parameter.
+ *
+ * @code
+ * src_pix_fmt = PIX_FMT_YUV420P;
+ * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24);
+ * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss);
+ * @endcode
+ *
+ * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
+ * @return The best pixel format to convert to or -1 if none was found.
+ *)
+function avcodec_find_best_pix_fmt (pix_fmt_mask: integer; src_pix_fmt: TAVPixelFormat;
+                            has_alpha: integer; loss_ptr: pinteger): integer;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0
+(**
+ * Print in buf the string corresponding to the pixel format with
+ * number pix_fmt, or an header if pix_fmt is negative.
+ *
+ * @param[in] buf the buffer where to write the string
+ * @param[in] buf_size the size of buf
+ * @param[in] pix_fmt the number of the pixel format to print the corresponding info string, or
+ * a negative value to print the corresponding header.
+ * Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1.
+ *)
+procedure avcodec_pix_fmt_string (buf: PChar; buf_size: integer; pix_fmt: integer);
+  cdecl; external av__codec;
+{$IFEND}
+
+const
+  FF_ALPHA_TRANSP      = $0001; {* image has some totally transparent pixels *}
+  FF_ALPHA_SEMI_TRANSP = $0002; {* image has some transparent pixels *}
+
+(**
+ * Tell if an image really has transparent alpha values.
+ * @return ored mask of FF_ALPHA_xxx constants
+ *)
+function img_get_alpha_info ({const} src: PAVPicture;
+                             pix_fmt: TAVPixelFormat;
+                             width: integer; height: integer): integer;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+(**
+ * convert among pixel formats
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat;
+              const src: PAVPicture; pix_fmt: TAVPixelFormat;
+              width: integer; height: integer): integer;
+  cdecl; external av__codec; deprecated;
+{$IFEND}
+
+(* deinterlace a picture *)
+(* deinterlace - if not supported return -1 *)
+function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture;
+                        pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
+  cdecl; external av__codec;
+
+{* external high level API *}
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+{
+var
+  first_avcodec: PAVCodec; external av__codec;
+}
+{$IFEND}
+
+{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0
+function av_codec_next(c: PAVCodec): PAVCodec;
+  cdecl; external av__codec;
+{$IFEND}
+
+(* returns LIBAVCODEC_VERSION_INT constant *)
+function avcodec_version (): cardinal;
+  cdecl; external av__codec;
+
+(* returns LIBAVCODEC_BUILD constant *)
+function avcodec_build (): cardinal;
+  cdecl; external av__codec;
+
+(**
+ * Initializes libavcodec.
+ *
+ * @warning This function \e must be called before any other libavcodec
+ * function.
+ *)
+procedure avcodec_init ();
+  cdecl; external av__codec;
+
+procedure register_avcodec (format: PAVCodec);
+  cdecl; external av__codec;
+
+(**
+ * Finds a registered encoder with a matching codec ID.
+ *
+ * @param id CodecID of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ *)
+function avcodec_find_encoder (id: TCodecID): PAVCodec;
+  cdecl; external av__codec;
+
+(**
+ * Finds a registered encoder with the specified name.
+ *
+ * @param name name of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ *)
+function avcodec_find_encoder_by_name (name: pchar): PAVCodec;
+  cdecl; external av__codec;
+
+(**
+ * Finds a registered decoder with a matching codec ID.
+ *
+ * @param id CodecID of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ *)
+function avcodec_find_decoder(id: TCodecID): PAVCodec;
+  cdecl; external av__codec;
+
+(**
+ * Finds a registered decoder with the specified name.
+ *
+ * @param name name of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ *)
+function avcodec_find_decoder_by_name (name: pchar): PAVCodec;
+  cdecl; external av__codec;
+procedure avcodec_string(buf: pchar; buf_size: integer; enc: PAVCodecContext; encode: integer);
+  cdecl; external av__codec;
+
+(**
+ * Sets the fields of the given AVCodecContext to default values.
+ *
+ * @param s The AVCodecContext of which the fields should be set to default values.
+ *)
+procedure avcodec_get_context_defaults (s: PAVCodecContext);
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0
+(** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ *  we WILL change its arguments and name a few times! *)
+procedure avcodec_get_context_defaults2(s: PAVCodecContext; ctype: TCodecType);
+  cdecl; external av__codec;
+{$IFEND}
+
+(**
+ * Allocates an AVCodecContext and sets its fields to default values.  The
+ * resulting struct can be deallocated by simply calling av_free().
+ *
+ * @return An AVCodecContext filled with default values or NULL on failure.
+ * @see avcodec_get_context_defaults
+ *)
+function avcodec_alloc_context(): PAVCodecContext;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0
+(** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ *  we WILL change its arguments and name a few times! *)
+function avcodec_alloc_context2(ctype: TCodecType): PAVCodecContext;
+  cdecl; external av__codec;
+{$IFEND}
+
+(**
+ * Sets the fields of the given AVFrame to default values.
+ *
+ * @param pic The AVFrame of which the fields should be set to default values.
+ *)
+procedure avcodec_get_frame_defaults (pic: PAVFrame);
+  cdecl; external av__codec;
+
+(**
+ * Allocates an AVFrame and sets its fields to default values.  The resulting
+ * struct can be deallocated by simply calling av_free().
+ *
+ * @return An AVFrame filled with default values or NULL on failure.
+ * @see avcodec_get_frame_defaults
+ *)
+function avcodec_alloc_frame(): PAVFrame;
+  cdecl; external av__codec;
+
+function avcodec_default_get_buffer (s: PAVCodecContext; pic: PAVFrame): integer;
+  cdecl; external av__codec;
+procedure avcodec_default_release_buffer (s: PAVCodecContext; pic: PAVFrame);
+  cdecl; external av__codec;
+function avcodec_default_reget_buffer (s: PAVCodecContext; pic: PAVFrame): integer;
+  cdecl; external av__codec;
+procedure avcodec_align_dimensions(s: PAVCodecContext; width: Pinteger; height: PInteger);
+  cdecl; external av__codec;
+
+(**
+ * Checks if the given dimension of a picture is valid, meaning that all
+ * bytes of the picture can be addressed with a signed int.
+ *
+ * @param[in] w Width of the picture.
+ * @param[in] h Height of the picture.
+ * @return Zero if valid, a negative value if invalid.
+ *)
+function avcodec_check_dimensions (av_log_ctx: pointer; w: cardinal; h: cardinal): integer;
+  cdecl; external av__codec;
+function avcodec_default_get_format(s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat;
+  cdecl; external av__codec;
+
+function avcodec_thread_init (s: PAVCodecContext; thread_count: integer): integer;
+  cdecl; external av__codec;
+procedure avcodec_thread_free (s: PAVCodecContext);
+  cdecl; external av__codec;
+function avcodec_thread_execute (s: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: Pinteger; count: integer): integer;
+  cdecl; external av__codec;
+function avcodec_default_execute (s: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: Pinteger; count: integer): integer;
+  cdecl; external av__codec;
+//FIXME func typedef
+
+(**
+ * Initializes the AVCodecContext to use the given AVCodec. Prior to using this
+ * function the context has to be allocated.
+ *
+ * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
+ * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
+ * retrieving a codec.
+ *
+ * @warning This function is not thread safe!
+ *
+ * @code
+ * avcodec_register_all();
+ * codec = avcodec_find_decoder(CODEC_ID_H264);
+ * if (!codec)
+ *     exit(1);
+ *
+ * context = avcodec_alloc_context();
+ *
+ * if (avcodec_open(context, codec) < 0)
+ *     exit(1);
+ * @endcode
+ *
+ * @param avctx The context which will be set up to use the given codec.
+ * @param codec The codec to use within the context.
+ * @return zero on success, a negative value on error
+ * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder
+ *)
+function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer;
+  cdecl; external av__codec;
+
+(**
+ * @deprecated Use avcodec_decode_audio2() instead.
+ *)
+function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword;
+                           var frame_size_ptr: integer;
+                           {const} buf: pchar; buf_size: integer): integer;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51030000} // 51.30.0
+(**
+ * Decodes an audio frame from \p buf into \p samples.
+ * The avcodec_decode_audio2() function decodes an audio frame from the input
+ * buffer \p buf of size \p buf_size. To decode it, it makes use of the
+ * audio codec which was coupled with \p avctx using avcodec_open(). The
+ * resulting decoded frame is stored in output buffer \p samples.  If no frame
+ * could be decompressed, \p frame_size_ptr is zero. Otherwise, it is the
+ * decompressed frame size in \e bytes.
+ *
+ * @warning You \e must set \p frame_size_ptr to the allocated size of the
+ * output buffer before calling avcodec_decode_audio2().
+ *
+ * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer \p buf should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note You might have to align the input buffer \p buf and output buffer \p
+ * samples. The alignment requirements depend on the CPU: On some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance. In practice, the
+ * bitstream should have 4 byte alignment at minimum and all sample data should
+ * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If
+ * the linesize is not a multiple of 16 then there's no sense in aligning the
+ * start of the buffer to 16.
+ *
+ * @param avctx the codec context
+ * @param[out] samples the output buffer
+ * @param[in,out] frame_size_ptr the output buffer size in bytes
+ * @param[in] buf the input buffer
+ * @param[in] buf_size the input buffer size in bytes
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ *)
+function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PSmallint;
+               var frame_size_ptr : integer;
+               {const} buf: pchar; buf_size: integer): integer;
+  cdecl; external av__codec;
+{$IFEND}
+
+(**
+ * Decodes a video frame from \p buf into \p picture.
+ * The avcodec_decode_video() function decodes a video frame from the input
+ * buffer \p buf of size \p buf_size. To decode it, it makes use of the
+ * video codec which was coupled with \p avctx using avcodec_open(). The
+ * resulting decoded frame is stored in \p picture.
+ *
+ * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer \p buf should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note You might have to align the input buffer \p buf and output buffer \p
+ * samples. The alignment requirements depend on the CPU: on some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance. In practice, the
+ * bitstream should have 4 byte alignment at minimum and all sample data should
+ * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If
+ * the linesize is not a multiple of 16 then there's no sense in aligning the
+ * start of the buffer to 16.
+ *
+ * @param avctx the codec context
+ * @param[out] picture The AVFrame in which the decoded video frame will be stored.
+ * @param[in] buf the input buffer
+ * @param[in] buf_size the size of the input buffer in bytes
+ * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ *)
+function avcodec_decode_video (avctx: PAVCodecContext; picture: PAVFrame;
+                       var got_picture_ptr: integer;
+                       {const} buf: PByte; buf_size: integer): integer;
+  cdecl; external av__codec;
+
+(* Decode a subtitle message. Return -1 if error, otherwise return the
+ * number of bytes used. If no subtitle could be decompressed,
+ * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. *)
+function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle;
+                          var got_sub_ptr: integer;
+                          {const} buf: pchar; buf_size: integer): integer;
+  cdecl; external av__codec;
+function avcodec_parse_frame (avctx: PAVCodecContext; pdata: PPointer;
+                      data_size_ptr: pinteger;
+                      buf: pchar; buf_size: integer): integer;
+  cdecl; external av__codec;
+
+(**
+ * Encodes an audio frame from \p samples into \p buf.
+ * The avcodec_encode_audio() function encodes an audio frame from the input
+ * buffer \p samples. To encode it, it makes use of the audio codec which was
+ * coupled with \p avctx using avcodec_open(). The resulting encoded frame is
+ * stored in output buffer \p buf.
+ *
+ * @note The output buffer should be at least \c FF_MIN_BUFFER_SIZE bytes large.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer
+ * @param[in] buf_size the output buffer size
+ * @param[in] samples the input buffer containing the samples
+ * The number of samples read from this buffer is frame_size*channels,
+ * both of which are defined in \p avctx.
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used to encode the data read from the input buffer.
+ *)
+function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte;
+                      buf_size: integer; {const} samples: PWord): integer;
+  cdecl; external av__codec;
+
+(**
+ * Encodes a video frame from \p pict into \p buf.
+ * The avcodec_encode_video() function encodes a video frame from the input
+ * \p pict. To encode it, it makes use of the video codec which was coupled with
+ * \p avctx using avcodec_open(). The resulting encoded bytes representing the
+ * frame are stored in the output buffer \p buf. The input picture should be
+ * stored using a specific format, namely \c avctx.pix_fmt.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer for the bitstream of encoded frame
+ * @param[in] buf_size the size of the output buffer in bytes
+ * @param[in] pict the input picture to encode
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used from the input buffer.
+ *)
+function avcodec_encode_video (avctx: PAVCodecContext; buf: PByte;
+                      buf_size: integer; pict: PAVFrame): integer;
+  cdecl; external av__codec;
+function avcodec_encode_subtitle (avctx: PAVCodecContext; buf: pchar;
+                      buf_size: integer; {const} sub: PAVSubtitle): integer;
+  cdecl; external av__codec;
+
+function avcodec_close (avctx: PAVCodecContext): integer;
+  cdecl; external av__codec;
+
+procedure avcodec_register_all ();
+  cdecl; external av__codec;
+
+(**
+ * Flush buffers, should be called when seeking or when switching to a different stream.
+ *)
+procedure avcodec_flush_buffers (avctx: PAVCodecContext);
+  cdecl; external av__codec;
+  
+procedure avcodec_default_free_buffers (s: PAVCodecContext);
+  cdecl; external av__codec;
+
+(* misc useful functions *)
+
+(**
+ * Returns a single letter to describe the given picture type \p pict_type.
+ *
+ * @param[in] pict_type the picture type
+ * @return A single character representing the picture type.
+ *)
+function av_get_pict_type_char (pict_type: integer): char;
+  cdecl; external av__codec;
+
+(**
+ * Returns codec bits per sample.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ *)
+function av_get_bits_per_sample (codec_id: TCodecID): integer;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0
+(**
+ * Returns sample format bits per sample.
+ *
+ * @param[in] sample_fmt the sample format
+ * @return Number of bits per sample or zero if unknown for the given sample format.
+ *)
+function av_get_bits_per_sample_format(sample_fmt: TSampleFormat): integer;
+  cdecl; external av__codec;
+{$IFEND}
+
+const
+  AV_PARSER_PTS_NB      = 4;
+  PARSER_FLAG_COMPLETE_FRAMES = $0001;
+
+type
+  {* frame parsing *}
+  PAVCodecParserContext = ^TAVCodecParserContext;
+  PAVCodecParser = ^TAVCodecParser;
+
+  TAVCodecParserContext = record
+    priv_data: pointer;
+    parser: PAVCodecParser;
+    frame_offset: int64; (* offset of the current frame *)
+    cur_offset: int64; (* current offset (incremented by each av_parser_parse()) *)
+    last_frame_offset: int64; (* offset of the last frame *)
+    (* video info *)
+    pict_type: integer; (* XXX: put it back in AVCodecContext *)
+    repeat_pict: integer; (* XXX: put it back in AVCodecContext *)
+    pts: int64;     (* pts of the current frame *)
+    dts: int64;     (* dts of the current frame *)
+
+    (* private data *)
+    last_pts: int64;
+    last_dts: int64;
+    fetch_timestamp: integer;
+
+    cur_frame_start_index: integer;
+    cur_frame_offset: array [0..AV_PARSER_PTS_NB - 1] of int64;
+    cur_frame_pts: array [0..AV_PARSER_PTS_NB - 1] of int64;
+    cur_frame_dts: array [0..AV_PARSER_PTS_NB - 1] of int64;
+
+    flags: integer;
+
+    {$IF LIBAVCODEC_VERSION >= 51040003} // 51.40.3
+    offset: int64;      ///< byte offset from starting packet start
+    last_offset: int64;
+    {$IFEND}
+  end;
+
+  TAVCodecParser = record
+    codec_ids: array [0..4] of integer; (* several codec IDs are permitted *)
+    priv_data_size: integer;
+    parser_init: function (s: PAVCodecParserContext): integer; cdecl;
+    parser_parse: function (s: PAVCodecParserContext; avctx: PAVCodecContext;
+                            {const} poutbuf: PPointer; poutbuf_size: PInteger;
+                            {const} buf: pchar; buf_size: integer): integer; cdecl;
+    parser_close: procedure (s: PAVCodecParserContext); cdecl;
+    split: function (avctx: PAVCodecContext; {const} buf: pchar;
+                     buf_size: integer): integer; cdecl;
+    next: PAVCodecParser;
+  end;
+
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+{
+var
+  av_first_parser: PAVCodecParser; external av__codec;
+}
+{$IFEND}
+
+{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0
+function av_parser_next(c: PAVCodecParser): PAVCodecParser;
+  cdecl; external av__codec;
+{$IFEND}
+
+procedure av_register_codec_parser (parser: PAVCodecParser);
+  cdecl; external av__codec;
+
+function av_parser_init (codec_id: integer): PAVCodecParserContext;
+  cdecl; external av__codec;
+
+function av_parser_parse (s: PAVCodecParserContext;
+                  avctx: PAVCodecContext;
+                  poutbuf: PPointer; poutbuf_size: pinteger;
+                  const buf: pchar; buf_size: integer;
+                  pts: int64; dts: int64): integer;
+  cdecl; external av__codec;
+function av_parser_change (s: PAVCodecParserContext;
+                   avctx: PAVCodecContext;
+                   poutbuf: PPointer; poutbuf_size: PInteger;
+                   const buf: pchar; buf_size: integer; keyframe: integer): integer;
+  cdecl; external av__codec;
+procedure av_parser_close (s: PAVCodecParserContext);
+  cdecl; external av__codec;
+
+type
+  PAVBitStreamFilterContext = ^TAVBitStreamFilterContext;
+  PAVBitStreamFilter = ^TAVBitStreamFilter;
+
+  TAVBitStreamFilterContext = record
+    priv_data: pointer;
+    filter: PAVBitStreamFilter;
+    parser: PAVCodecParserContext;
+    next: PAVBitStreamFilterContext;
+  end;
+
+  TAVBitStreamFilter = record
+    name: pchar;
+    priv_data_size: integer;
+    filter: function (bsfc: PAVBitStreamFilterContext;
+                  avctx: PAVCodecContext; args: pchar;
+                  poutbuf: PPointer; poutbuf_size: PInteger;
+                  buf: PByte; buf_size: integer; keyframe: integer): integer; cdecl;
+    {$IF LIBAVCODEC_VERSION >= 51043000} // 51.43.0
+    close: procedure (bsfc: PAVBitStreamFilterContext);
+    {$IFEND}
+    next: PAVBitStreamFilter;
+  end;
+
+procedure av_register_bitstream_filter (bsf: PAVBitStreamFilter);
+  cdecl; external av__codec;
+
+function av_bitstream_filter_init (name: pchar): PAVBitStreamFilterContext;
+  cdecl; external av__codec;
+
+function av_bitstream_filter_filter (bsfc: PAVBitStreamFilterContext;
+                               avctx: PAVCodecContext; args: pchar;
+                               poutbuf: PPointer; poutbuf_size: PInteger;
+                               buf: PByte; buf_size: integer; keyframe: integer): integer;
+  cdecl; external av__codec;
+procedure av_bitstream_filter_close (bsf: PAVBitStreamFilterContext);
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0
+function av_bitstream_filter_next(f: PAVBitStreamFilter): PAVBitStreamFilter;
+  cdecl; external av__codec;
+{$IFEND}
+
+(* memory *)
+
+(**
+ * Reallocates the given block if it is not large enough, otherwise it
+ * does nothing.
+ *
+ * @see av_realloc
+ *)
+procedure av_fast_realloc (ptr: pointer; size: PCardinal; min_size: Cardinal);
+  cdecl; external av__codec;
+  
+(* for static data only *)
+
+(**
+ * Frees all static arrays and resets their pointers to 0.
+ * Call this function to release all statically allocated tables.
+ *
+ * @deprecated. Code which uses av_free_static is broken/misdesigned
+ * and should correctly use static arrays
+ *
+ *)
+procedure  av_free_static ();
+  cdecl; external av__codec; deprecated;
+
+(**
+ * Allocation of static arrays.
+ *
+ * @warning Do not use for normal allocation.
+ *
+ * @param[in] size The amount of memory you need in bytes.
+ * @return block of memory of the requested size
+ * @deprecated. Code which uses av_mallocz_static is broken/misdesigned
+ * and should correctly use static arrays
+ *)
+procedure av_mallocz_static(size: cardinal);
+  cdecl; external av__codec; deprecated;
+
+{$IF LIBAVCODEC_VERSION < 51035000} // 51.35.0
+procedure av_realloc_static(ptr: pointer; size: Cardinal);
+  cdecl; external av__codec;
+{$IFEND}
+
+{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0
+(**
+ * Copy image 'src' to 'dst'.
+ *)
+procedure av_picture_copy(dst: PAVPicture; {const} src: PAVPicture;
+              pix_fmt: integer; width: integer; height: integer);
+  cdecl; external av__codec;
+
+(**
+ * Crop image top and left side.
+ *)
+function av_picture_crop(dst: PAVPicture; {const} src: PAVPicture;
+             pix_fmt: integer; top_band: integer; left_band: integer): integer;
+  cdecl; external av__codec;
+
+(**
+ * Pad image.
+ *)
+function av_picture_pad(dst: PAVPicture; {const} src: PAVPicture; height: integer; width: integer; pix_fmt: integer;
+            padtop: integer; padbottom: integer; padleft: integer; padright: integer; color: PInteger): integer;
+  cdecl; external av__codec;
+{$IFEND}
+
+{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+procedure img_copy (dst: PAVPicture; const src: PAVPicture;
+                    pix_fmt: TAVPixelFormat; width: integer; height: integer);
+  cdecl; external av__codec; deprecated;
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+function img_crop (dst: PAVPicture; const src: PAVPicture;
+           pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer;
+  cdecl; external av__codec; deprecated;
+
+(**
+ * @deprecated Use the software scaler (swscale) instead.
+ *)
+function img_pad (dst: PAVPicture; const src: PAVPicture; height, width: integer;
+                  pix_fmt: TAVPixelFormat; padtop, padbottom, padleft, padright: integer;
+                  color: PInteger): integer;
+  cdecl; external av__codec; deprecated;
+{$IFEND}
+
+function av_xiphlacing(s: PByte; v: Cardinal): Cardinal;
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0
+(**
+ * Parses \p str and put in \p width_ptr and \p height_ptr the detected values.
+ *
+ * @return 0 in case of a successful parsing, a negative value otherwise
+ * @param[in] str the string to parse: it has to be a string in the format
+ * <width>x<height> or a valid video frame size abbreviation.
+ * @param[in,out] width_ptr pointer to the variable which will contain the detected
+ * frame width value
+ * @param[in,out] height_ptr pointer to the variable which will contain the detected
+ * frame height value
+ *)
+function av_parse_video_frame_size(width_ptr: PInteger; height_ptr: PInteger; {const} str: PChar): integer;
+  cdecl; external av__codec;
+
+(**
+ * Parses \p str and put in \p frame_rate the detected values.
+ *
+ * @return 0 in case of a successful parsing, a negative value otherwise
+ * @param[in] str the string to parse: it has to be a string in the format
+ * <frame_rate_nom>/<frame_rate_den>, a float number or a valid video rate abbreviation
+ * @param[in,out] frame_rate pointer to the AVRational which will contain the detected
+ * frame rate
+ *)
+function av_parse_video_frame_rate(frame_rate: PAVRational; {const} str: PChar): integer;
+  cdecl; external av__codec;
+{$IFEND}
+
+(*
+{* error handling *}
+#if EINVAL > 0
+#define AVERROR(e) (-(e)) {**< Returns a negative error code from a POSIX error code, to return from library functions. *}
+#define AVUNERROR(e) (-(e)) {**< Returns a POSIX error code from a library function error return value. *}
+#else
+{* Some platforms have E* and errno already negated. *}
+#define AVERROR(e) (e)
+#define AVUNERROR(e) (e)
+#endif
+
+const
+  AVERROR_UNKNOWN     AVERROR(EINVAL)  {**< unknown error *}
+  AVERROR_IO          AVERROR(EIO)     {**< I/O error *}
+  AVERROR_NUMEXPECTED AVERROR(EDOM)    {**< Number syntax expected in filename. *}
+  AVERROR_INVALIDDATA AVERROR(EINVAL)  {**< invalid data found *}
+  AVERROR_NOMEM       AVERROR(ENOMEM)  {**< not enough memory *}
+  AVERROR_NOFMT       AVERROR(EILSEQ)  {**< unknown format *}
+  AVERROR_NOTSUPP     AVERROR(ENOSYS)  {**< Operation not supported. *}
+  AVERROR_NOENT       AVERROR(ENOENT)  {**< No such file or directory. *}
+  AVERROR_PATCHWELCOME    -MKTAG('P','A','W','E') {**< Not yet implemented in FFmpeg. Patches welcome. *}
+*)
+
+const
+  AVERROR_UNKNOWN     =(-1);  (* unknown error *)
+  AVERROR_IO          =(-2);  (* i/o error *)
+  AVERROR_NUMEXPECTED =(-3);  (* number syntax expected in filename *)
+  AVERROR_INVALIDDATA =(-4);  (* invalid data found *)
+  AVERROR_NOMEM       =(-5);  (* not enough memory *)
+  AVERROR_NOFMT       =(-6);  (* unknown format *)
+  AVERROR_NOTSUPP     =(-7);  (* operation not supported *)
+
+implementation
+
+end.
diff --git a/Game/Code/lib/ffmpeg/avformat.pas b/Game/Code/lib/ffmpeg/avformat.pas
new file mode 100644
index 00000000..7a5678a5
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/avformat.pas
@@ -0,0 +1,1235 @@
+(*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.  Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+ * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+ * in the source codes *)
+
+(*
+ * Min. version: 50.5.0
+ * Max. version: 52.7.0, Revision: 11661, Tue Jan 29 09:25:49 2008 UTC
+ *)
+
+unit avformat;
+
+{$IFDEF FPC}
+  {$MODE DELPHI }
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  avcodec,
+  avutil,
+  avio,
+  rational,
+  UConfig;
+
+const
+  (* Max. supported version by this header *)
+  LIBAVFORMAT_MAX_VERSION_MAJOR   = 52;
+  LIBAVFORMAT_MAX_VERSION_MINOR   = 7;
+  LIBAVFORMAT_MAX_VERSION_RELEASE = 0;
+  LIBAVFORMAT_MAX_VERSION = (LIBAVFORMAT_MAX_VERSION_MAJOR * VERSION_MAJOR) +
+                            (LIBAVFORMAT_MAX_VERSION_MINOR * VERSION_MINOR) +
+                            (LIBAVFORMAT_MAX_VERSION_RELEASE * VERSION_RELEASE);
+
+(* Check if linked versions are supported *)
+{$IF (LIBAVFORMAT_VERSION > LIBAVFORMAT_MAX_VERSION)}
+  {$MESSAGE Warn 'Linked version of libavformat may be unsupported!'}
+{$IFEND}
+
+type
+  PAVFile = Pointer;
+
+(* packet functions *)
+
+type
+  PAVPacket = ^TAVPacket;
+  TAVPacket = record
+    pts: int64;                            ///< presentation time stamp in time_base units
+    dts: int64;                            ///< decompression time stamp in time_base units
+    data: PByte;
+    size: integer;
+    stream_index: integer;
+    flags: integer;
+    duration: integer;                     ///< presentation duration in time_base units (0 if not available)
+    destruct: procedure (p: PAVPacket); cdecl; 
+    priv: pointer;
+    pos: int64;                            ///< byte position in stream, -1 if unknown
+  end;
+const
+  PKT_FLAG_KEY = $0001;
+
+procedure av_destruct_packet_nofree (var pkt: TAVPacket);
+  cdecl; external av__format;
+
+(**
+ * Default packet destructor.
+ *)
+procedure av_destruct_packet (var pkt: TAVPacket);
+  cdecl; external av__format;
+
+(**
+ * Initialize optional fields of a packet to default values.
+ *
+ * @param pkt packet
+ *)
+procedure av_init_packet (var pkt: TAVPacket);
+{$IF LIBAVFORMAT_VERSION >= 51012002} // 51.12.2
+  cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Allocate the payload of a packet and initialize its fields to default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return 0 if OK. AVERROR_xxx otherwise.
+ *)
+function av_new_packet(var pkt: TAVPacket; size: integer): integer;
+  cdecl; external av__format;
+
+(**
+ * Allocate and read the payload of a packet and initialize its fields to default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return >0 (read size) if OK. AVERROR_xxx otherwise.
+ *)
+function av_get_packet (s: PByteIOContext; var pkt: TAVPacket; size: integer): integer;
+  cdecl; external av__format;
+
+(**
+ * @warning This is a hack - the packet memory allocation stuff is broken. The
+ * packet is allocated if it was not really allocated
+ *)
+function av_dup_packet (pkt: PAVPacket): integer;
+  cdecl; external av__format;
+
+(**
+ * Free a packet
+ *
+ * @param pkt packet to free
+ *)
+procedure av_free_packet (pkt: PAVPacket); inline;
+
+(*************************************************)
+(* fractional numbers for exact pts handling *)
+
+type
+ (**
+  * the exact value of the fractional number is: 'val + num / den'.
+  * num is assumed to be such as 0 <= num < den
+  * @deprecated Use AVRational instead
+  *)
+  PAVFrac = ^TAVFrac;
+  TAVFrac = record
+    val, num, den: int64;
+  end; {deprecated}
+
+(*************************************************)
+(* input/output formats *)
+
+type
+  (* this structure contains the data a format has to probe a file *)
+  TAVProbeData = record
+    filename: pchar;
+    buf: pchar;
+    buf_size: integer;
+  end;
+
+const
+  AVPROBE_SCORE_MAX   = 100;   ///< max score, half of that is used for file extension based detection
+  AVPROBE_PADDING_SIZE = 32;   ///< extra allocated bytes at the end of the probe buffer
+
+  //! demuxer will use url_fopen, no opened file should be provided by the caller
+  AVFMT_NOFILE        = $0001;
+  AVFMT_NEEDNUMBER    = $0002; (**< needs '%d' in filename *)
+  AVFMT_SHOW_IDS      = $0008; (**< show format stream IDs numbers *)
+  AVFMT_RAWPICTURE    = $0020; (**< format wants AVPicture structure for
+                                      raw picture data *)
+  AVFMT_GLOBALHEADER  = $0040; (**< format wants global header *)
+  AVFMT_NOTIMESTAMPS  = $0080; (**< format does not need / have any timestamps *)
+  AVFMT_GENERIC_INDEX = $0100; (**< use generic index building code *)
+
+  // used by AVIndexEntry
+  AVINDEX_KEYFRAME = $0001;
+
+  AVFMTCTX_NOHEADER = $0001; (**< signal that no header is present
+                                         (streams are added dynamically) *)
+  MAX_STREAMS = 20;
+
+  AVFMT_NOOUTPUTLOOP = -1;
+  AVFMT_INFINITEOUTPUTLOOP = 0;
+  AVFMT_FLAG_GENPTS = $0001; ///< generate pts if missing even if it requires parsing future frames
+  AVFMT_FLAG_IGNIDX = $0002; ///< ignore index
+  AVFMT_FLAG_NONBLOCK = $0004; ///< do not block when reading packets from input
+
+  // used by AVStream
+  MAX_REORDER_DELAY = 4;
+
+  // used by TAVProgram
+  AV_PROGRAM_RUNNING = 1;
+
+type
+  PPAVCodecTag = ^PAVCodecTag;
+  PAVCodecTag = Pointer;
+
+  PPAVFormatContext = ^PAVFormatContext;
+  PAVFormatContext = ^TAVFormatContext;
+
+  PAVFormatParameters = ^TAVFormatParameters;
+
+  PAVOutputFormat = ^TAVOutputFormat;
+  PAVProbeData = ^TAVProbeData;
+
+  PAVInputFormat = ^TAVInputFormat;
+  PAVIndexEntry = ^TAVIndexEntry;
+
+  PAVStream = ^TAVStream;
+  PAVPacketList = ^TAVPacketList;
+
+  PPAVProgram = ^PAVProgram;
+  PAVProgram = ^TAVProgram;
+
+  {$IF LIBAVFORMAT_VERSION < 51006000} // 51.6.0
+  PAVImageFormat = ^TAVImageFormat;
+  PAVImageInfo = ^TAVImageInfo;
+  {$IFEND}
+
+  TAVFormatParameters = record
+    time_base: TAVRational;
+    sample_rate: integer;
+    channels: integer;
+    width: integer;
+    height: integer;
+    pix_fmt: TAVPixelFormat;
+    {$IF LIBAVFORMAT_VERSION < 51006000} // 51.6.0
+    image_format: PAVImageFormat;
+    {$IFEND}
+    channel: integer; (* used to select dv channel *)
+    {$IF LIBAVFORMAT_VERSION_MAJOR < 52}
+    device: pchar; (* video, audio or DV device, if LIBAVFORMAT_VERSION_INT < (52<<16) *)
+    {$IFEND}
+    standard: pchar; (* tv standard, NTSC, PAL, SECAM *)
+    { Delphi does not support bit fields -> use bf_flags instead
+    int mpeg2ts_raw:1;  (* force raw MPEG2 transport stream output, if possible *)
+    int mpeg2ts_compute_pcr:1; (* compute exact PCR for each transport
+                                  stream packet (only meaningful if
+                                  mpeg2ts_raw is TRUE *)
+    int initial_pause:1;       (* do not begin to play the stream
+                                  immediately (RTSP only) *)
+    int prealloced_context:1;
+    }
+    bf_flags: byte; // 0:mpeg2ts_raw/1:mpeg2ts_compute_pcr/2:initial_pause/3:prealloced_context
+    {$IF LIBAVFORMAT_VERSION_MAJOR < 53}
+    video_codec_id: TCodecID;
+    audio_codec_id: TCodecID;
+    {$IFEND}
+  end;
+
+  TAVOutputFormat = record
+    name: pchar;
+    long_name: pchar;
+    mime_type: pchar;
+    extensions: pchar; (*< comma separated filename extensions *)
+    (* size of private data so that it can be allocated in the wrapper *)
+    priv_data_size: integer;
+    (* output support *)
+    audio_codec: TCodecID; (* default audio codec *)
+    video_codec: TCodecID; (* default video codec *)
+    write_header: function (c: PAVFormatContext): integer; cdecl;
+    write_packet: function (c: PAVFormatContext; pkt: PAVPacket): integer; cdecl;
+    write_trailer: function (c: PAVFormatContext): integer; cdecl;
+    (* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER *)
+    flags: integer;
+    (* currently only used to set pixel format if not YUV420P *)
+    set_parameters: function (c: PAVFormatContext; f: PAVFormatParameters): integer; cdecl;
+    interleave_packet: function (s: PAVFormatContext; out_: PAVPacket; in_: PAVPacket; flush: integer): integer; cdecl;
+
+    {$IF LIBAVFORMAT_VERSION >= 51008000} // 51.8.0
+    (**
+     * list of supported codec_id-codec_tag pairs, ordered by "better choice first"
+     * the arrays are all CODEC_ID_NONE terminated
+     *)
+    codec_tag: {const} PPAVCodecTag;
+    {$IFEND}
+
+    {$IF LIBAVFORMAT_VERSION >= 51012002} // 51.12.2
+    subtitle_codec: TCodecID; (**< default subtitle codec *)
+    {$IFEND}
+
+    (* private fields *)
+    next: PAVOutputFormat;
+  end;
+
+  TAVInputFormat = record
+    name: pchar;
+    long_name: pchar;
+    (* size of private data so that it can be allocated in the wrapper *)
+    priv_data_size: integer;
+    (**
+     * Tell if a given file has a chance of being parsed by this format.
+     * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes
+     * big so you do not have to check for that unless you need more.
+     *)
+    read_probe: function (p: PAVProbeData): integer; cdecl;
+    (* read the format header and initialize the AVFormatContext
+       structure. Return 0 if OK. 'ap' if non NULL contains
+       additionnal paramters. Only used in raw format right
+       now. 'av_new_stream' should be called to create new streams.  *)
+    read_header: function (c: PAVFormatContext; ap: PAVFormatParameters): integer; cdecl;
+    (* read one packet and put it in 'pkt'. pts and flags are also
+       set. 'av_new_stream' can be called only if the flag
+       AVFMTCTX_NOHEADER is used. *)
+    read_packet: function (c: PAVFormatContext; var pkt: TAVPacket): integer; cdecl;
+    (* close the stream. The AVFormatContext and AVStreams are not
+       freed by this function *)
+    read_close: function (c: PAVFormatContext): integer; cdecl;
+    (**
+     * seek to a given timestamp relative to the frames in
+     * stream component stream_index
+     * @param stream_index must not be -1
+     * @param flags selects which direction should be preferred if no exact
+     *              match is available
+     * @return >= 0 on success (but not necessarily the new offset)
+     *)
+    read_seek: function (c: PAVFormatContext; stream_index: integer;
+                  timestamp: int64; flags: integer): integer; cdecl;
+    (**
+     * gets the next timestamp in stream[stream_index].time_base units.
+     * @return the timestamp or AV_NOPTS_VALUE if an error occured
+     *)
+    read_timestamp: function (s: PAVFormatContext; stream_index: integer;
+                              pos: pint64; pos_limit: int64): int64; cdecl;
+    (* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER *)
+    flags: integer;
+    (* if extensions are defined, then no probe is done. You should
+       usually not use extension format guessing because it is not
+       reliable enough *)
+    extensions: pchar;
+    (* general purpose read only value that the format can use *)
+    value: integer;
+
+    (* start/resume playing - only meaningful if using a network based format (RTSP) *)
+    read_play: function (c: PAVFormatContext): integer; cdecl;
+
+    (* pause playing - only meaningful if using a network based format  (RTSP) *)
+    read_pause: function (c: PAVFormatContext): integer; cdecl;
+
+    {$IF LIBAVFORMAT_VERSION >= 51008000} // 51.8.0
+    codec_tag: {const} PPAVCodecTag;
+    {$IFEND}
+
+    (* private fields *)
+    next: PAVInputFormat;
+  end;
+
+  TAVStreamParseType = (
+    AVSTREAM_PARSE_NONE,
+    AVSTREAM_PARSE_FULL,       (**< full parsing and repack *)
+    AVSTREAM_PARSE_HEADERS,    (**< only parse headers, don't repack *)
+    AVSTREAM_PARSE_TIMESTAMPS  (**< full parsing and interpolation of timestamps for frames not starting on packet boundary *)
+  );
+
+  TAVIndexEntry = record
+    pos: int64;
+    timestamp: int64;
+    { Delphi doesn't support bitfields -> use flags_size instead
+    int flags:2;
+    int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs 32 byte due to possible 8byte align).
+    }
+    flags_size: cardinal; // 0..1: flags, 2..31: size
+    min_distance: integer;         (* min distance between this and the previous keyframe, used to avoid unneeded searching *)
+  end;
+
+ (**
+  * Stream structure.
+  * New fields can be added to the end with minor version bumps.
+  * Removal, reordering and changes to existing fields require a major
+  * version bump.
+  * sizeof(AVStream) must not be used outside libav*.
+  *)
+  TAVStream = record
+    index: integer;    (* stream index in AVFormatContext *)
+    id: integer;       (* format specific stream id *)
+    codec: PAVCodecContext; (* codec context *)
+    (**
+     * Real base frame rate of the stream.
+     * This is the lowest frame rate with which all timestamps can be
+     * represented accurately (it is the least common multiple of all
+     * frame rates in the stream), Note, this value is just a guess!
+     * For example if the timebase is 1/90000 and all frames have either
+     * approximately 3600 or 1800 timer ticks then r_frame_rate will be 50/1.
+     *)
+    r_frame_rate: TAVRational;
+    priv_data: pointer;
+
+    (* internal data used in av_find_stream_info() *)
+    first_dts: int64;
+    {$IF LIBAVFORMAT_VERSION_MAJOR < 52}
+    codec_info_nb_frames: integer;
+    {$IFEND}
+
+    (** encoding: PTS generation when outputing stream *)
+    pts: TAVFrac;
+    (**
+     * This is the fundamental unit of time (in seconds) in terms
+     * of which frame timestamps are represented. For fixed-fps content,
+     * timebase should be 1/frame rate and timestamp increments should be
+     * identically 1.
+     *)
+    time_base: TAVRational;
+    pts_wrap_bits: integer; (* number of bits in pts (used for wrapping control) *)
+    (* ffmpeg.c private use *)
+    stream_copy: integer; (**< if set, just copy stream *)
+    discard: TAVDiscard; ///< selects which packets can be discarded at will and dont need to be demuxed
+    //FIXME move stuff to a flags field?
+    (* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
+     * MN:dunno if thats the right place, for it *)
+    quality: single;
+    (**
+     * Decoding: pts of the first frame of the stream, in stream time base.
+     * Only set this if you are absolutely 100% sure that the value you set
+     * it to really is the pts of the first frame.
+     * This may be undefined (AV_NOPTS_VALUE).
+     * @note The ASF header does NOT contain a correct start_time the ASF
+     * demuxer must NOT set this.
+     *)
+    start_time: int64;
+    (**
+     * Decoding: duration of the stream, in stream time base.
+     * If a source file does not specify a duration, but does specify
+     * a bitrate, this value will be estimates from bit rate and file size.
+     *)
+    duration: int64;
+
+    language: array [0..3] of char; (* ISO 639 3-letter language code (empty string if undefined) *)
+
+    (* av_read_frame() support *)
+    need_parsing: TAVStreamParseType;
+    parser: PAVCodecParserContext;
+
+    cur_dts: int64;
+    last_IP_duration: integer;
+    last_IP_pts: int64;
+    (* av_seek_frame() support *)
+    index_entries: PAVIndexEntry; (* only used if the format does not support seeking natively *)
+    nb_index_entries: integer;
+    index_entries_allocated_size: cardinal;
+
+    nb_frames: int64;                 ///< number of frames in this stream if known or 0
+    
+    {$IF LIBAVFORMAT_VERSION >= 50006000} // 50.6.0
+    pts_buffer: array [0..MAX_REORDER_DELAY] of int64;
+    {$IFEND}
+    
+    {$IF LIBAVFORMAT_VERSION >= 52006000} // 52.6.0
+    filename: PChar; (**< source filename of the stream *)
+    {$IFEND}
+  end;
+
+ (**
+  * format I/O context.
+  * New fields can be added to the end with minor version bumps.
+  * Removal, reordering and changes to existing fields require a major
+  * version bump.
+  * sizeof(AVFormatContext) must not be used outside libav*.
+  *)
+  TAVFormatContext = record
+    av_class: PAVClass; (* set by av_alloc_format_context *)
+    (* can only be iformat or oformat, not both at the same time *)
+    iformat: PAVInputFormat;
+    oformat: PAVOutputFormat;
+    priv_data: pointer;
+
+    {$IF LIBAVFORMAT_VERSION_MAJOR >= 52}
+    pb: PByteIOContext;
+    {$ELSE}
+    pb: TByteIOContext;
+    {$IFEND}
+
+    nb_streams: cardinal;
+    streams: array [0..MAX_STREAMS - 1] of PAVStream;
+    filename: array [0..1023] of char; (* input or output filename *)
+    (* stream info *)
+    timestamp: int64;
+    title: array [0..511] of char;
+    author: array [0..511] of char;
+    copyright: array [0..511] of char;
+    comment: array [0..511] of char;
+    album: array [0..511] of char;
+    year: integer;  (* ID3 year, 0 if none *)
+    track: integer; (* track number, 0 if none *)
+    genre: array [0..31] of char; (* ID3 genre *)
+
+    ctx_flags: integer; (* format specific flags, see AVFMTCTX_xx *)
+    (* private data for pts handling (do not modify directly) *)
+    (* This buffer is only needed when packets were already buffered but
+       not decoded, for example to get the codec parameters in mpeg
+       streams *)
+    packet_buffer: PAVPacketList;
+
+    (* decoding: position of the first frame of the component, in
+       AV_TIME_BASE fractional seconds. NEVER set this value directly:
+       it is deduced from the AVStream values.  *)
+    start_time: int64;
+    (* decoding: duration of the stream, in AV_TIME_BASE fractional
+       seconds. NEVER set this value directly: it is deduced from the
+       AVStream values.  *)
+    duration: int64;
+    (* decoding: total file size. 0 if unknown *)
+    file_size: int64;
+    (* decoding: total stream bitrate in bit/s, 0 if not
+       available. Never set it directly if the file_size and the
+       duration are known as ffmpeg can compute it automatically. *)
+    bit_rate: integer;
+
+    (* av_read_frame() support *)
+    cur_st: PAVStream;
+    cur_ptr: pbyte;
+    cur_len: integer;
+    cur_pkt: TAVPacket;
+
+    (* av_seek_frame() support *)
+    data_offset: int64; (* offset of the first packet *)
+    index_built: integer;
+
+    mux_rate: integer;
+    packet_size: integer;
+    preload: integer;
+    max_delay: integer;
+
+    (* number of times to loop output in formats that support it *)
+    loop_output: integer;
+
+    flags: integer;
+    loop_input: integer;
+
+    {$IF LIBAVFORMAT_VERSION >= 50006000} // 50.6.0
+    (* decoding: size of data to probe; encoding unused *)
+    probesize: cardinal;
+    {$IFEND}
+
+    {$IF LIBAVFORMAT_VERSION >= 51009000} // 51.9.0
+    (**
+     * maximum duration in AV_TIME_BASE units over which the input should be analyzed in av_find_stream_info()
+     *)
+    max_analyze_duration: integer;
+
+    key: pbyte;
+    keylen : integer;
+    {$IFEND}
+
+    {$IF LIBAVFORMAT_VERSION >= 51014000} // 51.14.0
+    nb_programs: cardinal;
+    programs: PPAVProgram;
+    {$IFEND}
+
+    {$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0
+    (**
+     * Forced video codec_id.
+     * demuxing: set by user
+     *)
+    video_codec_id: TCodecID;
+    (**
+     * Forced audio codec_id.
+     * demuxing: set by user
+     *)
+    audio_codec_id: TCodecID;
+    (**
+     * Forced subtitle codec_id.
+     * demuxing: set by user
+     *)
+    subtitle_codec_id: TCodecID;
+    {$IFEND}
+
+    {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+    (**
+     * Maximum amount of memory in bytes to use per stream for the index.
+     * If the needed index exceeds this size entries will be discarded as
+     * needed to maintain a smaller size. This can lead to slower or less
+     * accurate seeking (depends on demuxer).
+     * Demuxers for which a full in memory index is mandatory will ignore
+     * this.
+     * muxing  : unused
+     * demuxing: set by user
+     *)
+    max_index_size: cardinal;
+    {$IFEND}
+  end;
+
+  (**
+   * New fields can be added to the end with minor version bumps.
+   * Removal, reordering and changes to existing fields require a major
+   * version bump.
+   * sizeof(AVProgram) must not be used outside libav*.
+   *)
+  TAVProgram = record
+      id                : integer;
+      provider_name     : PChar;      ///< Network name for DVB streams
+      name              : PChar;      ///< Service name for DVB streams
+      flags             : integer;
+      discard           : TAVDiscard; ///< selects which program to discard and which to feed to the caller
+      {$IF LIBAVFORMAT_VERSION >= 51016000} // 51.16.0
+      stream_index      : PCardinal;
+      nb_stream_indexes : PCardinal;
+      {$IFEND}
+  end;
+
+  TAVPacketList = record
+    pkt: TAVPacket;
+    next: PAVPacketList;
+  end;
+
+{$IF LIBAVFORMAT_VERSION < 51006000} // 51.6.0
+  (* still image support *)
+  PAVInputImageContext = pointer; {deprecated}
+
+  (* still image support *)
+  TAVImageInfo = record
+    pix_fmt: TAVPixelFormat; (* requested pixel format *)
+    width: integer; (* requested width *)
+    height: integer; (* requested height *)
+    interleaved: integer; (* image is interleaved (e.g. interleaved GIF) *)
+    pict: TAVPicture; (* returned allocated image *)
+  end; {deprecated}
+
+  TAVImageFormat = record
+    name: pchar;
+    extensions: pchar;
+    (* tell if a given file has a chance of being parsing by this format *)
+    img_probe: function (d: PAVProbeData): integer; cdecl;
+    (* read a whole image. 'alloc_cb' is called when the image size is
+       known so that the caller can allocate the image. If 'allo_cb'
+       returns non zero, then the parsing is aborted. Return '0' if
+       OK. *)
+    img_read: function (b: PByteIOContext; alloc_cb: pointer; ptr: pointer): integer; cdecl;
+    (* write the image *)
+    supported_pixel_formats: integer; (* mask of supported formats for output *)
+    img_write: function (b: PByteIOContext; i: PAVImageInfo): integer; cdecl;
+    flags: integer;
+    next: PAVImageFormat;
+  end; {deprecated}
+
+procedure av_register_image_format (img_fmt: PAVImageFormat);
+    cdecl; external av__format; deprecated;
+
+function av_probe_image_format (pd: PAVProbeData): PAVImageFormat;
+    cdecl; external av__format; deprecated;
+
+function guess_image_format (filename: pchar): PAVImageFormat;
+    cdecl; external av__format; deprecated;
+
+function av_read_image (pb: PByteIOContext; filename: pchar;
+                  fmt: PAVImageFormat;
+                  alloc_cb: pointer; opaque: pointer): integer;
+    cdecl; external av__format; deprecated;
+
+function av_write_image(pb: PByteIOContext; fmt: PAVImageFormat; img: PAVImageInfo): integer;
+    cdecl; external av__format; deprecated;
+{$IFEND}
+
+{$IF LIBAVFORMAT_VERSION_MAJOR < 53}
+{
+var
+  first_iformat: PAVInputFormat; external av__format;
+  first_oformat: PAVOutputFormat; external av__format;
+}
+{$IFEND}
+
+{$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0
+function av_iformat_next(f: PAVInputFormat): PAVInputFormat;
+    cdecl; external av__format;
+function av_oformat_next(f: PAVOutputFormat): PAVOutputFormat;
+    cdecl; external av__format;
+{$IFEND}
+
+function av_guess_image2_codec({const} filename: PChar): TCodecID;
+    cdecl; external av__format;
+
+(* XXX: use automatic init with either ELF sections or C file parser *)
+(* modules *)
+
+(* utils.c *)
+procedure av_register_input_format (format: PAVInputFormat);
+  cdecl; external av__format;
+
+procedure av_register_output_format (format: PAVOutputFormat);
+  cdecl; external av__format;
+
+function guess_stream_format (short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat;
+  cdecl; external av__format;
+
+function guess_format(short_name: pchar; filename: pchar; mime_type: pchar): PAVOutputFormat;
+  cdecl; external av__format;
+
+(**
+ * Guesses the codec id based upon muxer and filename.
+ *)
+function av_guess_codec(fmt: PAVOutputFormat; short_name: pchar;
+                        filename: pchar; mime_type: pchar; type_: TCodecType): TCodecID;
+  cdecl; external av__format;
+
+(**
+ * Send a nice hexadecimal dump of a buffer to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump_log, av_pkt_dump, av_pkt_dump_log
+ *)
+procedure av_hex_dump (f: PAVFile; buf: pchar; size: integer);
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0
+(**
+ * Send a nice hexadecimal dump of a buffer to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump, av_pkt_dump, av_pkt_dump_log
+ *)
+procedure av_hex_dump_log(avcl: Pointer; level: integer; buf: PChar; size: integer);
+  cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Send a nice dump of a packet to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param pkt packet to dump
+ * @param dump_payload true if the payload must be displayed too
+ *)
+procedure av_pkt_dump(f: PAVFile; pkt: PAVPacket; dump_payload: integer);
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0
+(**
+ * Send a nice dump of a packet to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param pkt packet to dump
+ * @param dump_payload true if the payload must be displayed too
+ *)
+procedure av_pkt_dump_log(avcl: Pointer; level: integer; pkt: PAVPacket; dump_payload: integer);
+  cdecl; external av__format;
+{$IFEND}
+
+procedure av_register_all ();
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51008000} // 51.8.0
+(** codec tag <-> codec id *)
+function av_codec_get_id(var tags: PAVCodecTag; tag: cardinal): TCodecID;
+  cdecl; external av__format;
+function av_codec_get_tag(var tags: PAVCodecTag; id: TCodecID): cardinal;
+  cdecl; external av__format;
+{$IFEND}
+
+(* media file input *)
+
+(**
+ * finds AVInputFormat based on input format's short name.
+ *)
+function av_find_input_format (short_name: pchar): PAVInputFormat;
+  cdecl; external av__format;
+
+(**
+ * Guess file format.
+ *
+ * @param is_opened whether the file is already opened, determines whether
+ *                  demuxers with or without AVFMT_NOFILE are probed
+ *)
+function av_probe_input_format (pd: PAVProbeData; is_opened: integer): PAVInputFormat;
+  cdecl; external av__format;
+
+(**
+ * Allocates all the structures needed to read an input stream.
+ *        This does not open the needed codecs for decoding the stream[s].
+ *)
+function av_open_input_stream (ic_ptr: PAVFormatContext;
+                       pb: PByteIOContext; filename: pchar;
+                       fmt: PAVInputFormat; ap: PAVFormatParameters): integer;
+  cdecl; external av__format;
+
+(**
+ * Open a media file as input. The codecs are not opened. Only the file
+ * header (if present) is read.
+ *
+ * @param ic_ptr the opened media file handle is put here
+ * @param filename filename to open.
+ * @param fmt if non NULL, force the file format to use
+ * @param buf_size optional buffer size (zero if default is OK)
+ * @param ap additional parameters needed when opening the file (NULL if default)
+ * @return 0 if OK. AVERROR_xxx otherwise.
+ *)
+function av_open_input_file (var ic_ptr: PAVFormatContext; filename: pchar;
+                     fmt: PAVInputFormat; buf_size: integer;
+                     ap: PAVFormatParameters): integer;
+  cdecl; external av__format;
+
+(**
+ * Allocate an AVFormatContext.
+ * Can be freed with av_free() but do not forget to free everything you
+ * explicitly allocated as well!
+ *)
+function av_alloc_format_context (): PAVFormatContext;
+  cdecl; external av__format;
+
+(**
+ * Read packets of a media file to get stream information. This
+ * is useful for file formats with no headers such as MPEG. This
+ * function also computes the real frame rate in case of mpeg2 repeat
+ * frame mode.
+ * The logical file position is not changed by this function;
+ * examined packets may be buffered for later processing.
+ *
+ * @param ic media file handle
+ * @return >=0 if OK. AVERROR_xxx if error.
+ * @todo Let user decide somehow what information is needed so we do not waste time getting stuff the user does not need.
+ *)
+function av_find_stream_info (ic: PAVFormatContext): integer;
+  cdecl; external av__format;
+
+(**
+ * Read a transport packet from a media file.
+ *
+ * This function is obsolete and should never be used.
+ * Use av_read_frame() instead.
+ *
+ * @param s media file handle
+ * @param pkt is filled
+ * @return 0 if OK. AVERROR_xxx if error.
+ *)
+function av_read_packet (s: PAVFormatContext; var pkt: TAVPacket): integer;
+  cdecl; external av__format;
+
+(**
+ * Return the next frame of a stream.
+ *
+ * The returned packet is valid
+ * until the next av_read_frame() or until av_close_input_file() and
+ * must be freed with av_free_packet. For video, the packet contains
+ * exactly one frame. For audio, it contains an integer number of
+ * frames if each frame has a known fixed size (e.g. PCM or ADPCM
+ * data). If the audio frames have a variable size (e.g. MPEG audio),
+ * then it contains one frame.
+ *
+ * pkt->pts, pkt->dts and pkt->duration are always set to correct
+ * values in AVStream.timebase units (and guessed if the format cannot
+ * provided them). pkt->pts can be AV_NOPTS_VALUE if the video format
+ * has B frames, so it is better to rely on pkt->dts if you do not
+ * decompress the payload.
+ *
+ * @return 0 if OK, < 0 if error or end of file.
+ *)
+function av_read_frame (s: PAVFormatContext; var pkt: TAVPacket): integer; (* CAT#2 *)
+  cdecl; external av__format;
+
+(**
+ * Seek to the key frame at timestamp.
+ * 'timestamp' in 'stream_index'.
+ * @param stream_index If stream_index is (-1), a default
+ * stream is selected, and timestamp is automatically converted
+ * from AV_TIME_BASE units to the stream specific time_base.
+ * @param timestamp timestamp in AVStream.time_base units
+ *        or if there is no stream specified then in AV_TIME_BASE units
+ * @param flags flags which select direction and seeking mode
+ * @return >= 0 on success
+ *)
+function av_seek_frame (s: PAVFormatContext; stream_index: integer; timestamp: int64; flags: integer): integer;
+  cdecl; external av__format;
+
+(**
+ * start playing a network based stream (e.g. RTSP stream) at the
+ * current position
+ *)
+function av_read_play (s: PAVFormatContext): integer;
+  cdecl; external av__format;
+
+(**
+ * Pause a network based stream (e.g. RTSP stream).
+ *
+ * Use av_read_play() to resume it.
+ *)
+function av_read_pause (s: PAVFormatContext): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0
+(**
+ * Free a AVFormatContext allocated by av_open_input_stream.
+ * @param s context to free
+ *)
+procedure av_close_input_stream(s: PAVFormatContext);
+  cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Close a media file (but not its codecs).
+ *
+ * @param s media file handle
+ *)
+procedure av_close_input_file (s: PAVFormatContext);
+  cdecl; external av__format;
+
+(**
+ * Add a new stream to a media file.
+ *
+ * Can only be called in the read_header() function. If the flag
+ * AVFMTCTX_NOHEADER is in the format context, then new streams
+ * can be added in read_packet too.
+ *
+ * @param s media file handle
+ * @param id file format dependent stream id
+ *)
+function av_new_stream (s: PAVFormatContext; id: integer): PAVStream;
+  cdecl; external av__format;
+{$IF LIBAVFORMAT_VERSION >= 51014000} // 51.14.0
+function av_new_program(s: PAVFormatContext; id: integer): PAVProgram;
+  cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Set the pts for a given stream.
+ *
+ * @param s stream
+ * @param pts_wrap_bits number of bits effectively used by the pts
+ *        (used for wrap control, 33 is the value for MPEG)
+ * @param pts_num numerator to convert to seconds (MPEG: 1)
+ * @param pts_den denominator to convert to seconds (MPEG: 90000)
+ *)
+procedure av_set_pts_info (s: PAVStream; pts_wrap_bits: integer;
+                   pts_num: integer; pts_den: integer);
+  cdecl; external av__format;
+
+const
+  AVSEEK_FLAG_BACKWARD = 1; ///< seek backward
+  AVSEEK_FLAG_BYTE     = 2; ///< seeking based on position in bytes
+  AVSEEK_FLAG_ANY      = 4; ///< seek to any frame, even non keyframes
+
+function av_find_default_stream_index (s: PAVFormatContext): integer;
+  cdecl; external av__format;
+
+(**
+ * Gets the index for a specific timestamp.
+ * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond to
+ *                 the timestamp which is <= the requested one, if backward is 0
+ *                 then it will be >=
+ *              if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise
+ * @return < 0 if no such timestamp could be found
+ *)
+function av_index_search_timestamp (st: PAVStream; timestamp: int64; flags: integer): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+(**
+ * Ensures the index uses less memory than the maximum specified in
+ * AVFormatContext.max_index_size, by discarding entries if it grows
+ * too large.
+ * This function is not part of the public API and should only be called
+ * by demuxers.
+ *)
+procedure ff_reduce_index(s: PAVFormatContext; stream_index: integer);
+  cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Add a index entry into a sorted list updateing if it is already there.
+ *
+ * @param timestamp timestamp in the timebase of the given stream
+ *)
+function av_add_index_entry (st: PAVStream; pos: int64; timestamp: int64;
+                  distance: integer; flags: integer): integer;
+  cdecl; external av__format;
+
+(**
+ * Does a binary search using av_index_search_timestamp() and AVCodec.read_timestamp().
+ * This is not supposed to be called directly by a user application, but by demuxers.
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ *)
+function av_seek_frame_binary (s: PAVFormatContext; stream_index: integer;
+                 target_ts: int64; flags: integer): integer;
+  cdecl; external av__format;
+
+
+(**
+ * Updates cur_dts of all streams based on given timestamp and AVStream.
+ *
+ * Stream ref_st unchanged, others set cur_dts in their native timebase
+ * only needed for timestamp wrapping or if (dts not set and pts!=dts).
+ * @param timestamp new dts expressed in time_base of param ref_st
+ * @param ref_st reference stream giving time_base of param timestamp
+ *)
+procedure av_update_cur_dts (s: PAVFormatContext; ref_st: PAVStream;
+                             timestamp: int64);
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51007000} // 51.7.0
+type
+  TReadTimestampFunc = function (pavfc: PAVFormatContext;
+    arg2: integer; arg3: Pint64; arg4: int64): int64; cdecl;
+
+(**
+ * Does a binary search using read_timestamp().
+ * This is not supposed to be called directly by a user application, but by demuxers.
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ *)
+function av_gen_search(s: PAVFormatContext; stream_index: integer; target_ts: int64;
+    pos_min: int64; pos_max: int64; pos_limit: int64; ts_min: int64; ts_max: int64;
+    flags: integer; ts_ret: Pint64; read_timestamp: TReadTimestampFunc): int64;
+  cdecl; external av__format;
+{$IFEND}
+
+(* media file output *)
+function av_set_parameters (s: PAVFormatContext; ap: PAVFormatParameters): integer;
+  cdecl; external av__format;
+
+(**
+ * Allocate the stream private data and write the stream header to an
+ * output media file.
+ *
+ * @param s media file handle
+ * @return 0 if OK. AVERROR_xxx if error.
+ *)
+function av_write_header (s: PAVFormatContext): integer;
+  cdecl; external av__format;
+
+(**
+ * Write a packet to an output media file.
+ *
+ * The packet shall contain one audio or video frame.
+ * The packet must be correctly interleaved according to the container specification,
+ * if not then av_interleaved_write_frame must be used
+ *
+ * @param s media file handle
+ * @param pkt the packet, which contains the stream_index, buf/buf_size, dts/pts, ...
+ * @return < 0 if error, = 0 if OK, 1 if end of stream wanted.
+ *)
+function av_write_frame(s: PAVFormatContext; var pkt: TAVPacket): integer;
+  cdecl; external av__format; (* CAT#2 *)
+
+(**
+ * Writes a packet to an output media file ensuring correct interleaving.
+ *
+ * The packet must contain one audio or video frame.
+ * If the packets are already correctly interleaved the application should
+ * call av_write_frame() instead as it is slightly faster. It is also important
+ * to keep in mind that completely non-interleaved input will need huge amounts
+ * of memory to interleave with this, so it is preferable to interleave at the
+ * demuxer level.
+ *
+ * @param s media file handle
+ * @param pkt the packet, which contains the stream_index, buf/buf_size, dts/pts, ...
+ * @return < 0 if error, = 0 if OK, 1 if end of stream wanted.
+ *)
+function av_interleaved_write_frame (s: PAVFormatContext; var pkt: TAVPacket): integer;
+  cdecl; external av__format; (* CAT#2 *)
+
+(**
+ * Interleave a packet per DTS in an output media file.
+ *
+ * Packets with pkt->destruct == av_destruct_packet will be freed inside this function,
+ * so they cannot be used after it, note calling av_free_packet() on them is still safe.
+ *
+ * @param s media file handle
+ * @param out the interleaved packet will be output here
+ * @param in the input packet
+ * @param flush 1 if no further packets are available as input and all
+ *              remaining packets should be output
+ * @return 1 if a packet was output, 0 if no packet could be output,
+ *         < 0 if an error occured
+ *)
+function av_interleave_packet_per_dts(s: PAVFormatContext; _out: PAVPacket;
+                                      pkt: PAVPacket; flush: integer): integer;
+  cdecl; external av__format;
+
+(**
+ * @brief Write the stream trailer to an output media file and
+ *        free the file private data.
+ *
+ * @param s media file handle
+ * @return 0 if OK. AVERROR_xxx if error.
+ *)
+function av_write_trailer(s: pAVFormatContext): integer;
+  cdecl; external av__format;
+
+procedure dump_format(ic: PAVFormatContext; index: integer; url: pchar;
+               is_output: integer);
+  cdecl; external av__format;
+
+(**
+ * parses width and height out of string str.
+ * @deprecated Use av_parse_video_frame_size instead.
+ *)
+function parse_image_size(width_ptr: PInteger; height_ptr: PInteger; str: pchar): integer;
+  cdecl; external av__format; deprecated;
+
+(**
+ * Converts frame rate from string to a fraction.
+ * @deprecated Use av_parse_video_frame_rate instead.
+ *)
+function parse_frame_rate (frame_rate: PInteger; frame_rate_base: PInteger; arg: pchar): integer;
+  cdecl; external av__format; deprecated;
+
+(**
+ * Parses \p datestr and returns a corresponding number of microseconds.
+ * @param datestr String representing a date or a duration.
+ * - If a date the syntax is:
+ * @code
+ *  [{YYYY-MM-DD|YYYYMMDD}]{T| }{HH[:MM[:SS[.m...]]][Z]|HH[MM[SS[.m...]]][Z]}
+ * @endcode
+ * Time is localtime unless Z is appended, in which case it is
+ * interpreted as UTC.
+ * If the year-month-day part isn't specified it takes the current
+ * year-month-day.
+ * Returns the number of microseconds since 1st of January, 1970 up to
+ * the time of the parsed date or INT64_MIN if \p datestr cannot be
+ * successfully parsed.
+ * - If a duration the syntax is:
+ * @code
+ *  [-]HH[:MM[:SS[.m...]]]
+ *  [-]S+[.m...]
+ * @endcode
+ * Returns the number of microseconds contained in a time interval
+ * with the specified duration or INT64_MIN if \p datestr cannot be
+ * successfully parsed.
+ * @param duration Flag which tells how to interpret \p datestr, if
+ * not zero \p datestr is interpreted as a duration, otherwise as a
+ * date.
+ *)
+function parse_date(datestr: pchar; duration: integer): int64;
+  cdecl; external av__format;
+
+function av_gettime (): int64;
+  cdecl; external av__format;
+
+(* ffm specific for ffserver *)
+const
+  FFM_PACKET_SIZE = 4096;
+
+function ffm_read_write_index (fd: integer): int64;
+  cdecl; external av__format;
+
+procedure ffm_write_write_index(fd: integer; pos: int64);
+  cdecl; external av__format;
+
+procedure ffm_set_write_index (s: PAVFormatContext; pos: int64; file_size: int64);
+  cdecl; external av__format;
+
+(**
+ * Attempts to find a specific tag in a URL.
+ *
+ * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
+ * Return 1 if found.
+ *)
+function find_info_tag (arg: pchar; arg_size: integer; tag1: pchar; info: pchar): integer;
+  cdecl; external av__format;
+
+(**
+ * Returns in 'buf' the path with '%d' replaced by number.
+
+ * Also handles the '%0nd' format where 'n' is the total number
+ * of digits and '%%'.
+ *
+ * @param buf destination buffer
+ * @param buf_size destination buffer size
+ * @param path numbered sequence string
+ * @param number frame number
+ * @return 0 if OK, -1 if format error.
+ *)
+function av_get_frame_filename(buf: pchar; buf_size: integer;
+                               path: pchar; number: integer): integer;
+  cdecl; external av__format
+  {$IF LIBAVFORMAT_VERSION <= 50006000} // 50.6.0
+  name 'get_frame_filename'
+  {$IFEND};
+
+(**
+ * Check whether filename actually is a numbered sequence generator.
+ *
+ * @param filename possible numbered sequence string
+ * @return 1 if a valid numbered sequence string, 0 otherwise.
+ *)
+function av_filename_number_test(filename: pchar): integer;
+  cdecl; external av__format
+  {$IF LIBAVFORMAT_VERSION <= 50006000} // 50.6.0
+  name 'filename_number_test'
+  {$IFEND};
+
+{$IF LIBAVFORMAT_VERSION >= 51012002} // 51.12.2
+(**
+ * Generate an SDP for an RTP session.
+ *
+ * @param ac array of AVFormatContexts describing the RTP streams. If the
+ *           array is composed by only one context, such context can contain
+ *           multiple AVStreams (one AVStream per RTP stream). Otherwise,
+ *           all the contexts in the array (an AVCodecContext per RTP stream)
+ *           must contain only one AVStream
+ * @param n_files number of AVCodecContexts contained in ac
+ * @param buff buffer where the SDP will be stored (must be allocated by
+ *             the caller
+ * @param size the size of the buffer
+ * @return 0 if OK. AVERROR_xxx if error.
+ *)
+function avf_sdp_create(ac: PPAVFormatContext; n_files: integer; buff: PChar; size: integer): integer;
+  cdecl; external av__format;
+{$IFEND}
+
+implementation
+
+{$IF LIBAVFORMAT_VERSION < 51012002} // 51.12.2
+procedure av_init_packet (var pkt: TAVPacket);
+begin
+  with pkt do begin
+    pts   := AV_NOPTS_VALUE;
+    dts   := AV_NOPTS_VALUE;
+    pos   := -1;
+    duration := 0;
+    flags := 0;
+    stream_index := 0;
+    destruct := @av_destruct_packet_nofree
+  end
+end;
+{$IFEND}
+
+procedure av_free_packet (pkt: PAVPacket);
+begin
+  if ((pkt <> nil) and (@pkt^.destruct <> nil)) then
+    pkt^.destruct(pkt);
+end;
+
+end.
diff --git a/Game/Code/lib/ffmpeg/avio.pas b/Game/Code/lib/ffmpeg/avio.pas
new file mode 100644
index 00000000..a4d7af12
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/avio.pas
@@ -0,0 +1,490 @@
+(*
+ * unbuffered io for ffmpeg system
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.  Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+in the source codes *)
+
+(*
+ * Revision: 11305, Sat Dec 22 16:18:07 2007 UTC
+ *)
+
+unit avio;
+
+{$IFDEF FPC}
+  {$MODE DELPHI }
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  UConfig;
+
+(* output byte stream handling *)
+
+type
+  TOffset = int64;
+
+(* unbuffered I/O *)
+
+const
+  URL_RDONLY = 0;
+  URL_WRONLY = 1;
+  URL_RDWR   = 2;
+
+ (**
+  * Passing this as the "whence" parameter to a seek function causes it to
+  * return the filesize without seeking anywhere. Supporting this is optional.
+  * If it is not supported then the seek function will return <0.
+  *)
+  AVSEEK_SIZE = $10000;
+
+type
+  TURLInterruptCB = function (): integer; cdecl;
+
+type
+  PURLProtocol = ^TURLProtocol;
+
+ (**
+  * URL Context.
+  * New fields can be added to the end with minor version bumps.
+  * Removal, reordering and changes to existing fields require a major
+  * version bump.
+  * sizeof(URLContext) must not be used outside libav*.
+  *)
+  PURLContext = ^TURLContext;
+  TURLContext = record
+    prot: PURLProtocol;
+    flags: integer;
+    is_streamed: integer;  (**< true if streamed (no seek possible), default = false *)
+    max_packet_size: integer;  (**< if non zero, the stream is packetized with this max packet size *)
+    priv_data: pointer;
+    filename: PChar; (**< specified filename *)
+  end;
+
+  PURLPollEntry = ^TURLPollEntry;
+  TURLPollEntry = record
+    handle: PURLContext;
+    events: integer;
+    revents: integer;
+  end;
+
+  TURLProtocol = record
+    name: pchar;
+    url_open: function (h: PURLContext; {const} filename: pchar; flags: integer): integer; cdecl;
+    url_read: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
+    url_write: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
+    url_seek: function (h: PURLContext; pos: TOffset; whence: integer): TOffset; cdecl;
+    url_close: function (h: PURLContext): integer; cdecl;
+    next: PURLProtocol;
+    {$IF (LIBAVFORMAT_VERSION >= 52001000) and (LIBAVFORMAT_VERSION < 52004000)} // 52.1.0 .. 52.4.0
+    url_read_play: function (h: PURLContext): integer;
+    url_read_pause: function (h: PURLContext): integer;
+    {$IFEND}
+    {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+    url_read_pause: function (h: PURLContext; pause: integer): integer; cdecl;
+    {$IFEND}
+    {$IF LIBAVFORMAT_VERSION >= 52001000} // 52.1.0
+    url_read_seek: function (h: PURLContext;
+                         stream_index: integer; timestamp: int64; flags: integer): TOffset; cdecl;
+    {$IFEND}
+  end;
+
+ (**
+  * Bytestream IO Context.
+  * New fields can be added to the end with minor version bumps.
+  * Removal, reordering and changes to existing fields require a major
+  * version bump.
+  * sizeof(ByteIOContext) must not be used outside libav*.
+  *)
+  PByteIOContext = ^TByteIOContext;
+  TByteIOContext = record
+    buffer: pchar;
+    buffer_size: integer;
+    buf_ptr: pchar;
+    buf_end: pchar;
+    opaque: pointer;
+    read_packet: function (opaque: pointer; buf: pchar; buf_size: integer): integer; cdecl;
+    write_packet: function (opaque: pointer; buf: pchar; buf_size: integer): integer; cdecl;
+    seek: function (opaque: pointer; offset: TOffset; whence: integer): TOffset; cdecl;
+    pos: TOffset; (* position in the file of the current buffer *)
+    must_flush: integer; (* true if the next seek should flush *)
+    eof_reached: integer; (* true if eof reached *)
+    write_flag: integer;  (* true if open for writing *)
+    is_streamed: integer;
+    max_packet_size: integer;
+    checksum: longword;
+    checksum_ptr: pchar;
+    update_checksum: function (checksum: Longword; {const} buf: pchar; size: cardinal): Longword; cdecl;
+    error: integer;         ///< contains the error code or 0 if no error happened
+    {$IF (LIBAVFORMAT_VERSION >= 52001000) and (LIBAVFORMAT_VERSION < 52004000)} // 52.1.0 .. 52.4.0
+    read_play: function(opaque: Pointer): integer; cdecl;
+    read_pause: function(opaque: Pointer): integer; cdecl;
+    {$IFEND}
+    {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+    read_pause: function(opaque: Pointer; pause: integer): integer; cdecl;
+    {$IFEND}
+    {$IF LIBAVFORMAT_VERSION >= 52001000} // 52.1.0
+    read_seek: function(opaque: Pointer;
+                     stream_index: integer; timestamp: int64; flags: integer): TOffset; cdecl;
+    {$IFEND}
+  end;
+
+function url_open(h: PPointer; {const} filename: pchar; flags: integer): integer;
+  cdecl; external av__format;
+function url_read (h: PURLContext; buf: pchar; size: integer): integer;
+  cdecl; external av__format;
+function url_write (h: PURLContext; buf: pchar; size: integer): integer;
+  cdecl; external av__format;
+function url_seek (h: PURLContext; pos: TOffset; whence: integer): TOffset;
+  cdecl; external av__format;
+function url_close (h: PURLContext): integer;
+  cdecl; external av__format;
+function url_exist(const filename: pchar): integer;
+  cdecl; external av__format;
+function url_filesize (h: PURLContext): TOffset;
+  cdecl; external av__format;
+
+(**
+ * Return the maximum packet size associated to packetized file
+ * handle. If the file is not packetized (stream like HTTP or file on
+ * disk), then 0 is returned.
+ *
+ * @param h file handle
+ * @return maximum packet size in bytes
+ *)
+function url_get_max_packet_size(h: PURLContext): integer;
+  cdecl; external av__format;
+procedure url_get_filename(h: PURLContext; buf: pchar; buf_size: integer);
+  cdecl; external av__format;
+
+(**
+ * The callback is called in blocking functions to test regulary if
+ * asynchronous interruption is needed. AVERROR(EINTR) is returned
+ * in this case by the interrupted function. 'NULL' means no interrupt
+ * callback is given.
+ *)
+procedure url_set_interrupt_cb (interrupt_cb: TURLInterruptCB);
+  cdecl; external av__format;
+
+(* not implemented *)
+function url_poll(poll_table: PURLPollEntry; n: integer; timeout: integer): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+(**
+ * Pause and resume playing - only meaningful if using a network streaming
+ * protocol (e.g. MMS).
+ * @param pause 1 for pause, 0 for resume
+ *)
+function av_url_read_pause(h: PURLContext; pause: integer): integer;
+  cdecl; external av__format;
+{$IFEND}
+
+{$IF LIBAVFORMAT_VERSION >= 52001000} // 52.1.0
+(**
+ * Seek to a given timestamp relative to some component stream.
+ * Only meaningful if using a network streaming protocol (e.g. MMS.).
+ * @param stream_index The stream index that the timestamp is relative to.
+ *        If stream_index is (-1) the timestamp should be in AV_TIME_BASE
+ *        units from the beginning of the presentation.
+ *        If a stream_index >= 0 is used and the protocol does not support
+ *        seeking based on component streams, the call will fail with ENOTSUP.
+ * @param timestamp timestamp in AVStream.time_base units
+ *        or if there is no stream specified then in AV_TIME_BASE units.
+ * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE
+ *        and AVSEEK_FLAG_ANY. The protocol may silently ignore
+ *        AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will
+ *        fail with ENOTSUP if used and not supported.
+ * @return >= 0 on success
+ * @see AVInputFormat::read_seek
+ *)
+function av_url_read_seek(h: PURLContext;
+                     stream_index: integer; timestamp: int64; flags: integer): TOffset;
+  cdecl; external av__format;
+{$IFEND}
+
+{
+var
+  first_protocol: PURLProtocol; external av__format;
+  url_interrupt_cb: PURLInterruptCB; external av__format;
+}
+
+{$IF LIBAVFORMAT_VERSION >= 52002000} // 52.2.0
+function av_protocol_next(p: PURLProtocol): PURLProtocol;
+  cdecl; external av__format;
+{$IFEND}
+
+function register_protocol (protocol: PURLProtocol): integer;
+  cdecl; external av__format;
+
+type
+  TReadWriteFunc = function (opaque: Pointer; buf: PChar; buf_size: integer): integer; cdecl;
+  TSeekFunc = function (opaque: Pointer; offset: TOffset; whence: integer): TOffset; cdecl;
+
+function init_put_byte(s: PByteIOContext;
+                buffer: pchar;
+                buffer_size: integer; write_flag: integer;
+                opaque: pointer;
+                read_packet: TReadWriteFunc;
+                write_packet: TReadWriteFunc;
+                seek: TSeekFunc): integer;
+  cdecl; external av__format;
+{$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+function av_alloc_put_byte(
+                  buffer: PChar;
+                  buffer_size: integer;
+                  write_flag: integer;
+                  opaque: Pointer;
+                  read_packet: TReadWriteFunc;
+                  write_packet: TReadWriteFunc;
+                  seek: TSeekFunc): PByteIOContext;
+  cdecl; external av__format;
+{$IFEND}
+
+procedure put_byte(s: PByteIOContext; b: integer);
+  cdecl; external av__format;
+procedure put_buffer (s: PByteIOContext; {const} buf: pchar; size: integer);
+  cdecl; external av__format;
+procedure put_le64(s: PByteIOContext; val: int64);
+  cdecl; external av__format;
+procedure put_be64(s: PByteIOContext; val: int64);
+  cdecl; external av__format;
+procedure put_le32(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_be32(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_le24(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_be24(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_le16(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_be16(s: PByteIOContext; val: cardinal);
+  cdecl; external av__format;
+procedure put_tag(s: PByteIOContext; {const} tag: pchar);
+  cdecl; external av__format;
+
+procedure put_strz(s: PByteIOContext; {const} buf: pchar);
+  cdecl; external av__format;
+
+function url_fseek(s: PByteIOContext; offset: TOffset; whence: integer): TOffset;
+  cdecl; external av__format;
+procedure url_fskip(s: PByteIOContext; offset: TOffset);
+  cdecl; external av__format;
+function url_ftell(s: PByteIOContext): TOffset;
+  cdecl; external av__format;
+function url_fsize(s: PByteIOContext): TOffset;
+  cdecl; external av__format;
+function url_feof(s: PByteIOContext): integer;
+  cdecl; external av__format;
+function url_ferror(s: PByteIOContext): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
+function av_url_read_fpause(h: PByteIOContext; pause: integer): integer;
+  cdecl; external av__format;
+{$IFEND}
+{$IF LIBAVFORMAT_VERSION >= 52001000} // 52.1.0
+function av_url_read_fseek(h: PByteIOContext;
+                      stream_index: integer; timestamp: int64; flags: integer): TOffset;
+  cdecl; external av__format;
+{$IFEND}
+
+const
+  URL_EOF = -1;
+(** @note return URL_EOF (-1) if EOF *)
+function url_fgetc(s: PByteIOContext): integer;
+  cdecl; external av__format;
+
+(** @warning currently size is limited *)
+function url_fprintf(s: PByteIOContext; {const} fmt: PChar; args: array of const): integer;
+  cdecl; external av__format;
+
+(** @note unlike fgets, the EOL character is not returned and a whole
+   line is parsed. return NULL if first char read was EOF *)
+function url_fgets(s: PByteIOContext; buf: PChar; buf_size: integer): PChar;
+  cdecl; external av__format;
+
+procedure put_flush_packet (s: PByteIOContext);
+  cdecl; external av__format;
+  
+function get_buffer(s: PByteIOContext; buf: pchar; size: integer): integer;
+  cdecl; external av__format;
+function get_partial_buffer(s: PByteIOContext; buf: pchar; size: integer): integer;
+  cdecl; external av__format;
+
+(** @note return 0 if EOF, so you cannot use it if EOF handling is
+   necessary *)
+function get_byte(s: PByteIOContext): integer;
+  cdecl; external av__format;
+function get_le24(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+function get_le32(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+function get_le64(s: PByteIOContext): uint64;
+  cdecl; external av__format;
+function get_le16(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+
+function get_strz(s: PByteIOContext; buf: pchar; maxlen: integer): pchar;
+  cdecl; external av__format;
+function get_be16(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+function get_be24(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+function get_be32(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+function get_be64(s: PByteIOContext): uint64;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51017001} // 51.17.1
+function ff_get_v(bc: PByteIOContext): uint64;
+  cdecl; external av__format;
+{$IFEND}
+
+function url_is_streamed(s: PByteIOContext): integer; inline;
+
+(** @note when opened as read/write, the buffers are only used for
+   writing *)
+{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
+function url_fdopen (var s: PByteIOContext; h: PURLContext): integer;
+{$ELSE}
+function url_fdopen (s: PByteIOContext; h: PURLContext): integer;
+{$IFEND}
+  cdecl; external av__format;
+
+(** @warning must be called before any I/O *)
+function url_setbufsize (s: PByteIOContext; buf_size: integer): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51015000} // 51.15.0
+(** Reset the buffer for reading or writing.
+ * @note Will drop any data currently in the buffer without transmitting it.
+ * @param flags URL_RDONLY to set up the buffer for reading, or URL_WRONLY
+ *        to set up the buffer for writing. *)
+function url_resetbuf(s: PByteIOContext; flags: integer): integer;
+  cdecl; external av__format;
+{$IFEND}
+
+(** @note when opened as read/write, the buffers are only used for
+   writing *)
+{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
+function url_fopen(var s: PByteIOContext; const filename: pchar; flags: integer): integer;
+{$ELSE}
+function url_fopen(s: PByteIOContext; const filename: pchar; flags: integer): integer;
+{$IFEND}
+  cdecl; external av__format;
+function url_fclose(s: PByteIOContext): integer;
+  cdecl; external av__format;
+function url_fileno(s: PByteIOContext): PURLContext;
+  cdecl; external av__format;
+
+(**
+ * Return the maximum packet size associated to packetized buffered file
+ * handle. If the file is not packetized (stream like http or file on
+ * disk), then 0 is returned.
+ *
+ * @param s buffered file handle
+ * @return maximum packet size in bytes
+ *)
+function url_fget_max_packet_size (s: PByteIOContext): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
+function url_open_buf(var s: PByteIOContext; buf: pchar; buf_size: integer; flags: integer): integer;
+{$ELSE}
+function url_open_buf(s: PByteIOContext; buf: pchar; buf_size: integer; flags: integer): integer;
+{$IFEND}
+  cdecl; external av__format;
+
+(** return the written or read size *)
+function url_close_buf(s: PByteIOContext): integer;
+  cdecl; external av__format;
+
+(**
+ * Open a write only memory stream.
+ *
+ * @param s new IO context
+ * @return zero if no error.
+ *)
+{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
+function url_open_dyn_buf(var s: PByteIOContext): integer;
+{$ELSE}
+function url_open_dyn_buf(s: PByteIOContext): integer;
+{$IFEND}
+  cdecl; external av__format;
+
+(**
+ * Open a write only packetized memory stream with a maximum packet
+ * size of 'max_packet_size'.  The stream is stored in a memory buffer
+ * with a big endian 4 byte header giving the packet size in bytes.
+ *
+ * @param s new IO context
+ * @param max_packet_size maximum packet size (must be > 0)
+ * @return zero if no error.
+ *)
+{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
+function url_open_dyn_packet_buf(var s: PByteIOContext; max_packet_size: integer): integer;
+{$ELSE}
+function url_open_dyn_packet_buf(s: PByteIOContext; max_packet_size: integer): integer;
+{$IFEND}
+  cdecl; external av__format;
+
+(**
+ * Return the written size and a pointer to the buffer. The buffer
+ *  must be freed with av_free().
+ * @param s IO context
+ * @param pbuffer pointer to a byte buffer
+ * @return the length of the byte buffer
+ *)
+function url_close_dyn_buf(s: PByteIOContext; pbuffer:PPointer): integer;
+  cdecl; external av__format;
+
+{$IF LIBAVFORMAT_VERSION >= 51017001} // 51.17.1
+function ff_crc04C11DB7_update(checksum: longword; {const} buf: PChar; len: cardinal): longword;
+  cdecl; external av__format;
+{$IFEND}
+function get_checksum(s: PByteIOContext): cardinal;
+  cdecl; external av__format;
+procedure init_checksum (s: PByteIOContext; update_checksum: pointer; checksum: cardinal);
+  cdecl; external av__format;
+
+(* udp.c *)
+function udp_set_remote_url(h: PURLContext; {const} uri: pchar): integer;
+  cdecl; external av__format;
+function udp_get_local_port(h: PURLContext): integer;
+  cdecl; external av__format;
+function udp_get_file_handle(h: PURLContext): integer;
+  cdecl; external av__format;
+
+implementation
+
+function url_is_streamed(s: PByteIOContext): integer;
+begin
+  Result := s^.is_streamed;
+end;
+
+end.
diff --git a/Game/Code/lib/ffmpeg/avutil.pas b/Game/Code/lib/ffmpeg/avutil.pas
new file mode 100644
index 00000000..906d9041
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/avutil.pas
@@ -0,0 +1,225 @@
+(*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.
+ * Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+ * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+ * in the source codes *)
+
+(*
+ * avutil.h:
+ *  Min. version: ?
+ *  Max. version: 49.6.0, Revision: 11654, Mon Jan 28 17:23:57 2008 UTC
+ *
+ * mem.h:
+ *  Revision: 11641, Sun Jan 27 20:50:16 2008 UTC
+ *)
+
+unit avutil;
+
+{$IFDEF FPC}
+  {$MODE DELPHI}
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  mathematics,
+  rational,
+  UConfig;
+
+const
+  (* Max. supported version by this header *)
+  LIBAVUTIL_MAX_VERSION_MAJOR   = 49;
+  LIBAVUTIL_MAX_VERSION_MINOR   = 6;
+  LIBAVUTIL_MAX_VERSION_RELEASE = 0;
+  LIBAVUTIL_MAX_VERSION = (LIBAVUTIL_MAX_VERSION_MAJOR * VERSION_MAJOR) +
+                          (LIBAVUTIL_MAX_VERSION_MINOR * VERSION_MINOR) +
+                          (LIBAVUTIL_MAX_VERSION_RELEASE * VERSION_RELEASE);
+
+(* Check if linked versions are supported *)
+{$IF (LIBAVUTIL_VERSION > LIBAVUTIL_MAX_VERSION)}
+  {$MESSAGE Warn 'Linked version of libavutil may be unsupported!'}
+{$IFEND}
+
+type
+(**
+ * Pixel format. Notes:
+ *
+ * PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
+ * color is put together as:
+ *  (A << 24) | (R << 16) | (G << 8) | B
+ * This is stored as BGRA on little endian CPU architectures and ARGB on
+ * big endian CPUs.
+ *
+ * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
+ * image data is stored in AVFrame.data[0]. The palette is transported in
+ * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
+ * formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
+ * also endian-specific). Note also that the individual RGB palette
+ * components stored in AVFrame.data[1] should be in the range 0..255.
+ * This is important as many custom PAL8 video codecs that were designed
+ * to run on the IBM VGA graphics adapter use 6-bit palette components.
+ *)
+
+  PAVPixelFormat = ^TAVPixelFormat;
+  TAVPixelFormat = (
+    PIX_FMT_NONE= -1,
+    PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
+    PIX_FMT_YUYV422,   ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
+    PIX_FMT_RGB24,     ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
+    PIX_FMT_BGR24,     ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
+    PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
+    PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
+    PIX_FMT_RGB32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
+    PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0,  9bpp, (1 Cr & Cb sample per 4x4 Y samples)
+    PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
+    PIX_FMT_RGB565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5R 6G 5B(lsb), in cpu endianness
+    PIX_FMT_RGB555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 1
+    PIX_FMT_GRAY8,     ///<        Y        ,  8bpp
+    PIX_FMT_MONOWHITE, ///<        Y        ,  1bpp, 0 is white, 1 is black
+    PIX_FMT_MONOBLACK, ///<        Y        ,  1bpp, 0 is black, 1 is white
+    PIX_FMT_PAL8,      ///< 8 bit with PIX_FMT_RGB32 palette
+    PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
+    PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
+    PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
+    PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
+    PIX_FMT_XVMC_MPEG2_IDCT,
+    PIX_FMT_UYVY422,   ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
+    PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
+    PIX_FMT_BGR32,     ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness
+    PIX_FMT_BGR565,    ///< Packed RGB 5:6:5, 16bpp, (msb)   5B 6G 5R(lsb), in cpu endianness
+    PIX_FMT_BGR555,    ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1
+    PIX_FMT_BGR8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2B 3G 3R(lsb)
+    PIX_FMT_BGR4,      ///< Packed RGB 1:2:1,  4bpp, (msb)1B 2G 1R(lsb)
+    PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)1B 2G 1R(lsb)
+    PIX_FMT_RGB8,      ///< Packed RGB 3:3:2,  8bpp, (msb)2R 3G 3B(lsb)
+    PIX_FMT_RGB4,      ///< Packed RGB 1:2:1,  4bpp, (msb)2R 3G 3B(lsb)
+    PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1,  8bpp, (msb)2R 3G 3B(lsb)
+    PIX_FMT_NV12,      ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
+    PIX_FMT_NV21,      ///< as above, but U and V bytes are swapped
+
+    PIX_FMT_RGB32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness
+    PIX_FMT_BGR32_1,   ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness
+
+    PIX_FMT_GRAY16BE,  ///<        Y        , 16bpp, big-endian
+    PIX_FMT_GRAY16LE,  ///<        Y        , 16bpp, little-endian
+    PIX_FMT_YUV440P,   ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
+    PIX_FMT_YUVJ440P,  ///< Planar YUV 4:4:0 full scale (jpeg)
+    PIX_FMT_YUVA420P,  ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
+    PIX_FMT_NB         ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
+  );
+
+const
+{$ifdef WORDS_BIGENDIAN}
+  PIX_FMT_RGBA = PIX_FMT_RGB32_1;
+  PIX_FMT_BGRA = PIX_FMT_BGR32_1;
+  PIX_FMT_ARGB = PIX_FMT_RGB32;
+  PIX_FMT_ABGR = PIX_FMT_BGR32;
+  PIX_FMT_GRAY16 = PIX_FMT_GRAY16BE;
+{$else}
+  PIX_FMT_RGBA = PIX_FMT_BGR32;
+  PIX_FMT_BGRA = PIX_FMT_RGB32;
+  PIX_FMT_ARGB = PIX_FMT_BGR32_1;
+  PIX_FMT_ABGR = PIX_FMT_RGB32_1;
+  PIX_FMT_GRAY16 = PIX_FMT_GRAY16LE;
+{$endif}
+
+{$IF LIBAVUTIL_VERSION_MAJOR < 50} // 50.0.0
+  PIX_FMT_UYVY411 = PIX_FMT_UYYVYY411;
+  PIX_FMT_RGBA32  = PIX_FMT_RGB32;
+  PIX_FMT_YUV422  = PIX_FMT_YUYV422;
+{$IFEND}
+
+(* mem.h *)
+
+(**
+ * Allocate a block of \p size bytes with alignment suitable for all
+ * memory accesses (including vectors if available on the CPU).
+ * @param size Size in bytes for the memory block to be allocated.
+ * @return Pointer to the allocated block, NULL if it cannot allocate
+ * it.
+ * @see av_mallocz()
+ *)
+function av_malloc (size: cardinal): pointer;
+  cdecl; external av__util;
+
+(**
+ * Allocate or reallocate a block of memory.
+ * If \p ptr is NULL and \p size > 0, allocate a new block. If \p
+ * size is zero, free the memory block pointed by \p ptr.
+ * @param size Size in bytes for the memory block to be allocated or
+ * reallocated.
+ * @param ptr Pointer to a memory block already allocated with
+ * av_malloc(z)() or av_realloc() or NULL.
+ * @return Pointer to a newly reallocated block or NULL if it cannot
+ * reallocate or the function is used to free the memory block.
+ * @see av_fast_realloc()
+ *)
+function av_realloc (ptr: pointer; size: cardinal): pointer;
+  cdecl; external av__util;
+
+(**
+ * Free a memory block which has been allocated with av_malloc(z)() or
+ * av_realloc().
+ * @param ptr Pointer to the memory block which should be freed.
+ * @note ptr = NULL is explicitly allowed.
+ * @note It is recommended that you use av_freep() instead.
+ * @see av_freep()
+ *)
+procedure av_free (ptr: pointer);
+  cdecl; external av__util;
+
+(**
+ * Allocate a block of \p size bytes with alignment suitable for all
+ * memory accesses (including vectors if available on the CPU) and
+ * set to zeroes all the bytes of the block.
+ * @param size Size in bytes for the memory block to be allocated.
+ * @return Pointer to the allocated block, NULL if it cannot allocate
+ * it.
+ * @see av_malloc()
+ *)
+function av_mallocz (size: cardinal): pointer;
+  cdecl; external av__util;
+
+(**
+ * Duplicate the string \p s.
+ * @param s String to be duplicated.
+ * @return Pointer to a newly allocated string containing a
+ * copy of \p s or NULL if it cannot be allocated.
+ *)
+function av_strdup({const} s: pchar): pchar;
+  cdecl; external av__util;
+
+(**
+ * Free a memory block which has been allocated with av_malloc(z)() or
+ * av_realloc() and set to NULL the pointer to it.
+ * @param ptr Pointer to the pointer to the memory block which should
+ * be freed.
+ * @see av_free()
+ *)
+procedure av_freep (ptr: pointer);
+  cdecl; external av__util;
+
+implementation
+
+end.
diff --git a/Game/Code/lib/ffmpeg/mathematics.pas b/Game/Code/lib/ffmpeg/mathematics.pas
new file mode 100644
index 00000000..ae390e9d
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/mathematics.pas
@@ -0,0 +1,75 @@
+(*
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.  Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+in the source codes *)
+
+(*
+ * Revision: 10765, Wed Oct 17 09:37:46 2007 UTC
+ *)
+
+unit mathematics;
+
+{$IFDEF FPC}
+  {$MODE DELPHI }
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  rational,
+  UConfig;
+
+type
+  TAVRounding = (
+    AV_ROUND_ZERO     = 0, ///< round toward zero
+    AV_ROUND_INF      = 1, ///< round away from zero
+    AV_ROUND_DOWN     = 2, ///< round toward -infinity
+    AV_ROUND_UP       = 3, ///< round toward +infinity
+    AV_ROUND_NEAR_INF = 5  ///< round to nearest and halfway cases away from zero
+  );
+
+(**
+ * rescale a 64bit integer with rounding to nearest.
+ * a simple a*b/c isn't possible as it can overflow
+ *)
+function av_rescale (a, b, c: int64): int64;
+  cdecl; external av__util;
+
+(**
+ * rescale a 64bit integer with specified rounding.
+ * a simple a*b/c isn't possible as it can overflow
+ *)
+function av_rescale_rnd (a, b, c: int64; enum: TAVRounding): int64;
+  cdecl; external av__util;
+
+(**
+ * rescale a 64bit integer by 2 rational numbers.
+ *)
+function av_rescale_q (a: int64; bq, cq: TAVRational): int64;
+  cdecl; external av__util;
+
+implementation
+
+end.
+ 
diff --git a/Game/Code/lib/ffmpeg/opt.pas b/Game/Code/lib/ffmpeg/opt.pas
new file mode 100644
index 00000000..6bde3e65
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/opt.pas
@@ -0,0 +1,136 @@
+(*
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* This is a part of Pascal porting of ffmpeg.
+ * Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+ * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+ * in the source codes *)
+
+(*
+ * Revision: 11250, Mon Dec 17 17:41:24 2007 UTC
+ *)
+
+unit opt;
+
+{$IFDEF FPC}
+  {$MODE DELPHI}
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  rational,
+  UConfig;
+
+type
+  TAVOptionType = (
+    FF_OPT_TYPE_FLAGS,
+    FF_OPT_TYPE_INT,
+    FF_OPT_TYPE_INT64,
+    FF_OPT_TYPE_DOUBLE,
+    FF_OPT_TYPE_FLOAT,
+    FF_OPT_TYPE_STRING,
+    FF_OPT_TYPE_RATIONAL,
+    FF_OPT_TYPE_BINARY,  ///< offset must point to a pointer immediately followed by an int for the length
+    FF_OPT_TYPE_CONST = 128
+  );
+
+const
+  AV_OPT_FLAG_ENCODING_PARAM  = 1;   ///< a generic parameter which can be set by the user for muxing or encoding
+  AV_OPT_FLAG_DECODING_PARAM  = 2;   ///< a generic parameter which can be set by the user for demuxing or decoding
+  AV_OPT_FLAG_METADATA        = 4;   ///< some data extracted or inserted into the file like title, comment, ...
+  AV_OPT_FLAG_AUDIO_PARAM     = 8;
+  AV_OPT_FLAG_VIDEO_PARAM     = 16;
+  AV_OPT_FLAG_SUBTITLE_PARAM  = 32;
+
+type
+  (**
+   * AVOption.
+   *)
+  PAVOption = ^TAVOption;
+  TAVOption = record
+    name: pchar;
+    
+    (**
+     * short English text help.
+     * @todo what about other languages
+     *)
+    help: pchar;
+    offset: integer;             ///< offset to context structure where the parsed value should be stored
+    type_: TAVOptionType;
+
+    default_val: double;
+    min: double;
+    max: double;
+
+    flags: integer;
+//FIXME think about enc-audio, ... style flags
+    unit_: pchar;
+  end;
+
+{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0
+function av_find_opt (obj: Pointer; {const} name: PChar; {const} unit_: PChar; mask: integer; flags: integer): {const} PAVOption;
+  cdecl; external av__codec;
+{$IFEND}
+
+function av_set_string (obj: pointer; name: pchar; val: pchar): PAVOption;
+  cdecl; external av__codec;
+
+function av_set_double (obj: pointer; name: pchar; n: double): PAVOption;
+  cdecl; external av__codec;
+
+function av_set_q (obj: pointer; name: pchar; n: TAVRational): PAVOption;
+  cdecl; external av__codec;
+
+function av_set_int (obj: pointer; name: pchar; n: int64): PAVOption;
+  cdecl; external av__codec;
+
+function av_get_double (obj: pointer; name: pchar; o_out: PPointer): double;
+  cdecl; external av__codec;
+
+function av_get_q (obj: pointer; name: pchar; o_out: PPointer): TAVRational;
+  cdecl; external av__codec;
+
+function av_get_int (obj: pointer; name: pchar; o_out: PPointer): int64;
+  cdecl; external av__codec;
+
+function av_get_string (obj: pointer; name: pchar; o_out: PPOinter; buf: pchar; buf_len: integer): pchar;
+  cdecl; external av__codec;
+
+function av_next_option (obj: pointer; last: PAVOption): PAVOption;
+  cdecl; external av__codec;
+
+function av_opt_show (obj: pointer; av_log_obj: pointer): integer;
+  cdecl; external av__codec;
+
+procedure av_opt_set_defaults (s: pointer);
+  cdecl; external av__codec;
+
+{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0
+procedure av_opt_set_defaults2 (s: Pointer; mask: integer; flags: integer);
+  cdecl; external av__codec;
+{$IFEND}
+
+implementation
+
+end.
diff --git a/Game/Code/lib/ffmpeg/rational.pas b/Game/Code/lib/ffmpeg/rational.pas
new file mode 100644
index 00000000..0d6f76b6
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/rational.pas
@@ -0,0 +1,146 @@
+(*
+ * Rational numbers
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+ 
+(* This is a part of Pascal porting of ffmpeg.
+ * Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
+ * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
+ * in the source codes *)
+
+(*
+ * Revision: 10765, Wed Oct 17 09:37:46 2007 UTC
+ *)
+
+unit rational;
+
+{$IFDEF FPC}
+  {$MODE DELPHI}
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  UConfig;
+
+type
+(*
+ * Rational number num/den.
+ *)
+  PAVRational = ^TAVRational;
+  TAVRational = record
+    num: integer; ///< numerator
+    den: integer; ///< denominator
+  end;
+
+(**
+ * Compare two rationals.
+ * @param a first rational
+ * @param b second rational
+ * @return 0 if a==b, 1 if a>b and -1 if a<b.
+ *)
+function av_cmp_q(a: TAVRational; b: TAVRational): integer; inline;
+
+(**
+ * Rational to double conversion.
+ * @param a rational to convert
+ * @return (double) a
+ *)
+function av_q2d(a: TAVRational): double; inline;
+
+(**
+ * Reduce a fraction.
+ * This is useful for framerate calculations.
+ * @param dst_nom destination numerator
+ * @param dst_den destination denominator
+ * @param nom source numerator
+ * @param den source denominator
+ * @param max the maximum allowed for dst_nom & dst_den
+ * @return 1 if exact, 0 otherwise
+ *)
+function av_reduce(dst_nom: PInteger; dst_den: PInteger; nom: int64; den: int64; max: int64): integer;
+  cdecl; external av__util;
+
+(**
+ * Multiplies two rationals.
+ * @param b first rational.
+ * @param c second rational.
+ * @return b*c.
+ *)
+function av_mul_q(b: TAVRational; c: TAVRational): TAVRational;
+  cdecl; external av__util;
+
+(**
+ * Divides one rational by another.
+ * @param b first rational.
+ * @param c second rational.
+ * @return b/c.
+ *)
+function av_div_q(b: TAVRational; c: TAVRational): TAVRational;
+  cdecl; external av__util;
+
+(**
+ * Adds two rationals.
+ * @param b first rational.
+ * @param c second rational.
+ * @return b+c.
+ *)
+function av_add_q(b: TAVRational; c: TAVRational): TAVRational;
+  cdecl; external av__util;
+
+(**
+ * Subtracts one rational from another.
+ * @param b first rational.
+ * @param c second rational.
+ * @return b-c.
+ *)
+function av_sub_q(b: TAVRational; c: TAVRational): TAVRational;
+  cdecl; external av__util;
+
+(**
+ * Converts a double precision floating point number to a rational.
+ * @param d double to convert
+ * @param max the maximum allowed numerator and denominator
+ * @return (AVRational) d.
+ *)
+function av_d2q(d: double; max: integer): TAVRational;
+  cdecl; external av__util;
+
+implementation
+
+function av_cmp_q (a: TAVRational; b: TAVRational): integer;
+var
+  tmp: int64;
+begin
+  tmp := a.num * int64(b.den) - b.num * int64(a.den);
+
+  if (tmp <> 0) then
+    Result := (tmp shr 63) or 1
+  else
+    Result := 0
+end;
+
+function av_q2d(a: TAVRational): double;
+begin
+  Result := a.num / a.den;
+end;
+
+end.
diff --git a/Game/Code/lib/ffmpeg/src/MacOSX/MacOSXReadMe.txt b/Game/Code/lib/ffmpeg/src/MacOSX/MacOSXReadMe.txt
new file mode 100644
index 00000000..59e54e04
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/src/MacOSX/MacOSXReadMe.txt
@@ -0,0 +1,23 @@
+
+How to download an build ffmpeg for UltraStar Deluxe on Mac OS X:
+
+1. Open a terminal.
+
+2. cd into the Game/Code/lib/ffmpeg/src/MacOSX directory
+
+3. Run the following command:
+
+svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg
+
+4. The compile ffmpeg. I made a script for this:
+
+./build_ffmpeg.sh
+
+5. On OS X you have to patch the the dylibs. Run the following 
+   script. It patches the dylibs and copies them to the 
+   lib/ffmpeg dir:
+
+./copy_and_patch_dylibs.sh
+
+
+You're done.
diff --git a/Game/Code/lib/ffmpeg/src/MacOSX/build_ffmpeg.sh b/Game/Code/lib/ffmpeg/src/MacOSX/build_ffmpeg.sh
new file mode 100755
index 00000000..bcb3ca1e
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/src/MacOSX/build_ffmpeg.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+cd ffmpeg
+./configure --enable-shared --disable-static --disable-mmx
+make
+
diff --git a/Game/Code/lib/ffmpeg/src/MacOSX/copy_and_patch_dylibs.sh b/Game/Code/lib/ffmpeg/src/MacOSX/copy_and_patch_dylibs.sh
new file mode 100755
index 00000000..064d2ecc
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/src/MacOSX/copy_and_patch_dylibs.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Copy dylibs:
+cp ffmpeg/libavcodec/libavcodec.51.dylib ../../libavcodec.dylib
+cp ffmpeg/libavformat/libavformat.52.dylib ../../libavformat.dylib
+cp ffmpeg/libavutil/libavutil.49.dylib ../../libavutil.dylib
+
+# Patching libavcodec:
+install_name_tool -id @executable_path/libavcodec.dylib ../../libavcodec.dylib
+install_name_tool -change /usr/local/lib/libavutil.dylib @executable_path/libavutil.dylib ../../libavcodec.dylib
+
+# Patching libavformat:
+install_name_tool -id @executable_path/libavformat.dylib ../../libavformat.dylib
+install_name_tool -change /usr/local/lib/libavutil.dylib @executable_path/libavutil.dylib ../../libavformat.dylib
+install_name_tool -change /usr/local/lib/libavcodec.dylib @executable_path/libavcodec.dylib ../../libavformat.dylib
+
+# Patching libavcodec:
+install_name_tool -id @executable_path/libavutil.dylib ../../libavutil.dylib
+
+# Printing result:
+otool -L ../../libavutil.dylib
+otool -L ../../libavcodec.dylib
+otool -L ../../libavformat.dylib
\ No newline at end of file
diff --git a/Game/Code/lib/ffmpeg/swscale.pas b/Game/Code/lib/ffmpeg/swscale.pas
new file mode 100644
index 00000000..15b2c38f
--- /dev/null
+++ b/Game/Code/lib/ffmpeg/swscale.pas
@@ -0,0 +1,214 @@
+(*
+ * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+(*
+ * @file swscale.h
+ * @brief
+ *     external api for the swscale stuff
+ *)
+
+(*
+ * Revision: 24800, Thu Oct 18 09:30:33 2007 UTC
+ *)
+ 
+unit swscale;
+
+{$IFDEF FPC}
+  {$MODE DELPHI }
+  {$PACKENUM 4}    (* use 4-byte enums *)
+  {$PACKRECORDS C} (* C/C++-compatible record packing *)
+{$ELSE}
+  {$MINENUMSIZE 4} (* use 4-byte enums *)
+{$ENDIF}
+
+interface
+
+uses
+  avutil,
+  UConfig;
+
+const
+  (* Max. supported version by this header *)
+  LIBSWSCALE_MAX_VERSION_MAJOR   = 0;
+  LIBSWSCALE_MAX_VERSION_MINOR   = 5;
+  LIBSWSCALE_MAX_VERSION_RELEASE = 0;
+  LIBSWSCALE_MAX_VERSION = (LIBSWSCALE_MAX_VERSION_MAJOR * VERSION_MAJOR) +
+                           (LIBSWSCALE_MAX_VERSION_MINOR * VERSION_MINOR) +
+                           (LIBSWSCALE_MAX_VERSION_RELEASE * VERSION_RELEASE);
+
+(* Check if linked versions are supported *)
+{$IF (LIBSWSCALE_VERSION > LIBSWSCALE_MAX_VERSION)}
+  {$MESSAGE Warn 'Linked version of libswscale may be unsupported!'}
+{$IFEND}
+
+type
+  TQuadIntArray = array[0..3] of integer;
+  PQuadIntArray = ^TQuadIntArray;
+  TIntArray = array[0..0] of integer;
+  PIntArray = ^TIntArray;
+  TPByteArray = array[0..0] of Pbyte;
+  PPByteArray = ^TPByteArray;
+
+const
+  LIBSWSCALE_VERSION_INT = ((0 shl 16)+(5 shl 8))+0;
+  LIBSWSCALE_VERSION = '0.5.0';
+  LIBSWSCALE_BUILD = LIBSWSCALE_VERSION_INT;
+
+  LIBSWSCALE_IDENT = 'SwS'+LIBSWSCALE_VERSION;
+
+  {* values for the flags, the stuff on the command line is different *}
+  SWS_FAST_BILINEAR =    1;
+  SWS_BILINEAR      =    2;
+  SWS_BICUBIC       =    4;
+  SWS_X             =    8;
+  SWS_POINT         =  $10;
+  SWS_AREA          =  $20;
+  SWS_BICUBLIN      =  $40;
+  SWS_GAUSS         =  $80;
+  SWS_SINC          = $100;
+  SWS_LANCZOS       = $200;
+  SWS_SPLINE        = $400;
+
+  SWS_SRC_V_CHR_DROP_MASK  = $30000;
+  SWS_SRC_V_CHR_DROP_SHIFT = 16;
+
+  SWS_PARAM_DEFAULT        = 123456;
+
+  SWS_PRINT_INFO           = $1000;
+
+  //the following 3 flags are not completely implemented
+  //internal chrominace subsampling info
+  SWS_FULL_CHR_H_INT    = $2000;
+  //input subsampling info
+  SWS_FULL_CHR_H_INP    = $4000;
+  SWS_DIRECT_BGR        = $8000;
+  SWS_ACCURATE_RND      = $40000;
+
+  SWS_CPU_CAPS_MMX      = $80000000;
+  SWS_CPU_CAPS_MMX2     = $20000000;
+  SWS_CPU_CAPS_3DNOW    = $40000000;
+  SWS_CPU_CAPS_ALTIVEC  = $10000000;
+  SWS_CPU_CAPS_BFIN     = $01000000;
+
+  SWS_MAX_REDUCE_CUTOFF = 0.002;
+
+  SWS_CS_ITU709         = 1;
+  SWS_CS_FCC            = 4;
+  SWS_CS_ITU601         = 5;
+  SWS_CS_ITU624         = 5;
+  SWS_CS_SMPTE170M      = 5;
+  SWS_CS_SMPTE240M      = 7;
+  SWS_CS_DEFAULT        = 5;
+
+
+type
+
+  // when used for filters they must have an odd number of elements
+  // coeffs cannot be shared between vectors
+  PSwsVector = ^TSwsVector;
+  TSwsVector = record
+    coeff: Pdouble;
+    length: integer;
+  end;
+
+  // vectors can be shared
+  PSwsFilter = ^TSwsFilter;
+  TSwsFilter = record
+    lumH: PSwsVector;
+    lumV: PSwsVector;
+    chrH: PSwsVector;
+    chrV: PSwsVector;
+  end;
+
+  PSwsContext = ^TSwsContext;
+  TSwsContext = record
+    av_class: Pointer;
+    swScale: Pointer;
+    srxW,srcH, dstH: integer;
+    chrSrcW, chrSrcH, chrDstW, chrDstH: integer;
+    lumXInc, chrXInc, lumYInc, chrYInc: integer;
+    dstFormat, srcFormat, origDstFormat, origSrcFormat: integer;
+    chrSrcHSubSample, chrSrcVSubSample, chrIntHSubSample, chrIntVSubSample: integer;
+    chrDstHSubSample, chrDstVSubSample: integer;
+    vChrDrop, sliceDir: integer;
+    param: array[0..1] of double;
+    {internal structure}
+  end;
+
+
+procedure sws_freeContext(swsContext: PSwsContext);
+  cdecl; external sw__scale;
+
+function sws_getContext(srcW: integer; srcH: integer; srcFormat: integer; dstW: integer; dstH: integer;dstFormat: integer; flags: integer;
+              srcFilter: PSwsFilter; dstFilter: PSwsFilter; param: Pdouble): PSwsContext;
+  cdecl; external sw__scale;
+function sws_scale(context: PSwsContext; src: PPByteArray; srcStride: PIntArray; srcSliceY: integer; srcSliceH: integer;
+              dst: PPByteArray; dstStride: PIntArray): integer;
+  cdecl; external sw__scale;
+function sws_scale_ordered(context: PSwsContext; src: PPByteArray; srcStride: PIntArray; srcSliceY: integer;
+              srcSliceH: integer; dst: PPByteArray; dstStride: PIntArray): integer;
+  cdecl; external sw__scale; deprecated;
+
+function sws_setColorspaceDetails(c: PSwsContext; inv_table: PQuadIntArray; srcRange: integer; table: PQuadIntArray; dstRange: integer;
+              brightness: integer; contrast: integer; saturation: integer): integer;
+  cdecl; external sw__scale;
+function sws_getColorspaceDetails(c: PSwsContext; var inv_table: PQuadIntArray; var srcRange: integer; var table: PQuadIntArray; var dstRange: integer;
+              var brightness: integer; var contrast: integer; var saturation: integer): integer;
+  cdecl; external sw__scale;
+function sws_getGaussianVec(variance: double; quality: double): PSwsVector;
+  cdecl; external sw__scale;
+function sws_getConstVec(c: double; length: integer): PSwsVector;
+  cdecl; external sw__scale;
+function sws_getIdentityVec: PSwsVector;
+  cdecl; external sw__scale;
+procedure sws_scaleVec(a: PSwsVector; scalar: double);
+  cdecl; external sw__scale;
+procedure sws_normalizeVec(a: PSwsVector; height: double);
+  cdecl; external sw__scale;
+procedure sws_convVec(a: PSwsVector; b: PSwsVector);
+  cdecl; external sw__scale;
+procedure sws_addVec(a: PSwsVector; b: PSwsVector);
+  cdecl; external sw__scale;
+procedure sws_subVec(a: PSwsVector; b: PSwsVector);
+  cdecl; external sw__scale;
+procedure sws_shiftVec(a: PSwsVector; shift: integer);
+  cdecl; external sw__scale;
+function sws_cloneVec(a: PSwsVector): PSwsVector;
+  cdecl; external sw__scale;
+
+procedure sws_printVec(a: PSwsVector);
+  cdecl; external sw__scale;
+procedure sws_freeVec(a: PSwsVector);
+  cdecl; external sw__scale;
+
+function sws_getDefaultFilter(lumaGBlur: single; chromaGBlur: single; lumaSarpen: single; chromaSharpen: single; chromaHShift: single;
+              chromaVShift: single; verbose: integer): PSwsFilter;
+  cdecl; external sw__scale;
+procedure sws_freeFilter(filter: PSwsFilter);
+  cdecl; external sw__scale;
+
+function sws_getCachedContext(context: PSwsContext;
+              srcW: integer; srcH: integer; srcFormat: integer;
+              dstW: integer; dstH: integer; dstFormat: integer; flags: integer;
+              srcFilter: PSwsFilter; dstFilter: PSwsFilter; param: Pdouble): PSwsContext;
+  cdecl; external sw__scale;
+
+implementation
+
+end.