diff options
Diffstat (limited to 'Game/Code/lib/ffmpeg/avcodec.pas')
| -rw-r--r-- | Game/Code/lib/ffmpeg/avcodec.pas | 4076 |
1 files changed, 2039 insertions, 2037 deletions
diff --git a/Game/Code/lib/ffmpeg/avcodec.pas b/Game/Code/lib/ffmpeg/avcodec.pas index 9c232fff..bcfe9809 100644 --- a/Game/Code/lib/ffmpeg/avcodec.pas +++ b/Game/Code/lib/ffmpeg/avcodec.pas @@ -1,2041 +1,2043 @@ - (* - * 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 *) - -unit avcodec; - -{$IFDEF FPC} - {$LINKLIB libavutil} - {$LINKLIB libavcodec} - {$MODE DELPHI } (* CAT *) - {$PACKENUM 4} (* every enum type variables uses 4 bytes, CAT *) - {$PACKRECORDS C} (* GCC compatible, Record Packing, CAT *) -{$ENDIF} - -interface - -uses - avutil, rational, opt; // CAT - -const -{$IFDEF win32} + (*
+ * 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 *)
+
+unit avcodec;
+
+{$IFDEF FPC}
+ {$IFNDEF win32}
+ {$LINKLIB libavutil}
+ {$LINKLIB libavcodec}
+ {$ENDIF}
+ {$MODE DELPHI } (* CAT *)
+ {$PACKENUM 4} (* every enum type variables uses 4 bytes, CAT *)
+ {$PACKRECORDS C} (* GCC compatible, Record Packing, CAT *)
+{$ENDIF}
+
+interface
+
+uses
+ avutil, rational, opt; // CAT
+
+const
+{$IFDEF win32}
av__format = 'avformat-50.dll';
{$ELSE}
av__format = 'libavformat.so'; // .0d
// av__format = 'libavformat.51';
-{$ENDIF} - - - LIBAVUTIL_VERSION_INT = ((51 shl 16) + (12 shl 8) + 1); - LIBAVUTIL_VERSION = '51.12.1'; - LIBAVUTIL_BUILD = LIBAVUTIL_VERSION_INT; - - AV_NOPTS_VALUE: int64 = $8000000000000000; - AV_TIME_BASE = 1000000; - AV_TIME_BASE_Q : TAVRational = (num:1; den:AV_TIME_BASE); (* added by CAT *) - -type - TCodecID = ( - CODEC_ID_NONE, CODEC_ID_MPEG1VIDEO, - CODEC_ID_MPEG2VIDEO, //* prefered ID for MPEG Video 1 or 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, - - //* 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, - //* 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, - //* 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, //* prefered ID for MPEG Audio layer 1, 2 or3 decoding */ - CODEC_ID_AAC, CODEC_ID_MPEG4AAC, 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, CODEC_ID_QDM2, - CODEC_ID_COOK, CODEC_ID_TRUESPEECH, CODEC_ID_TTA, CODEC_ID_SMACKAUDIO, - CODEC_ID_QCELP, CODEC_ID_WAVPACK, - //* subtitle codecs */ - CODEC_ID_DVD_SUBTITLE= $17000, CODEC_ID_DVB_SUBTITLE, - - CODEC_ID_MPEG2TS= $20000 //* _FAKE_ codec to indicate a raw MPEG2 transport - // stream (only used by libavformat) */ - ); - -//* CODEC_ID_MP3LAME is absolete */ -const - CODEC_ID_MP3LAME = CODEC_ID_MP3; - - AVPALETTE_SIZE = 1024; - AVPALETTE_COUNT = 256; - -type - TCodecType = ( - CODEC_TYPE_UNKNOWN = -1, - CODEC_TYPE_VIDEO, - CODEC_TYPE_AUDIO, - CODEC_TYPE_DATA, - CODEC_TYPE_SUBTITLE, - CODEC_TYPE_NB (* CAT#3 *) - ); - -//* currently unused, may be used if 24/32 bits samples ever supported */ -//* all in native endian */ - 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, EPZS by default */ - TMotion_Est_ID = ( - ME_ZERO = 1, - ME_FULL, - ME_LOG, - ME_PHODS, - ME_EPZS, - ME_X1, - ME_HEX, - ME_UMH, - ME_ITER - ); - - 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 - AVDISCARD_FUCK = $FFFFFF - ); - - 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 initing - 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 -//* parent program gurantees that the input for b-frame containing streams is not written to -// for at least s->max_b_frames+1 frames, if this is not set than 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 */ - CODEC_FLAG_H263P_AIC = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this) - 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) - -(* Unsupported options : - * Syntax Arithmetic coding (SAC) - * Reference Picture Selection - * Independant Segment Decoding */ -/* /Fx */ -/* codec capabilities *) - -const - CODEC_CAP_DRAW_HORIZ_BAND = $001; ///< decoder can use draw_horiz_band callback -(** - * Codec uses get_buffer() for allocating buffers. - * direct rendering method 1 *) - CODEC_CAP_DR1 = $002; -(* if 'parse_only' field is true, then avcodec_parse_frame() can be used *) - CODEC_CAP_PARSE_ONLY = $004; - CODEC_CAP_TRUNCATED = $008; -//* codec can export data for HW decoding (XvMC) */ - CODEC_CAP_HWACCEL = $010; - -(** - * 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 lavc *) - id: integer; - - (*** width and height in 1/16 pel - * - encoding: set by user. - * - decoding: set by lavc *) - 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 lavc *) - position: array [0..2] of array [0..1] of smallint; - end; - -const - FF_QSCALE_TYPE_MPEG1 = 0; - FF_QSCALE_TYPE_MPEG2 = 1; - - 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. *) - PAVFrame = ^TAVFrame; - TAVFrame = record {200} - (*** pointer to the picture planes. - * this might be different from the first allocated byte *) - 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 lavc unless the default get/release_buffer() is used*) - base: array [0..3] of pbyte; - (*** 1 -> keyframe, 0-> not *) - key_frame: integer; - (*** picture type of the frame, see ?_TYPE below.*) - 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*) - pts: int64; - (*** picture number in bitstream order.*) - coded_picture_number: integer; - (*** picture number in display order.*) - display_picture_number: integer; - (*** quality (between 1 (good) and FF_LAMBDA_MAX (bad)) *) - quality: integer; - (*** buffer age (1->was last buffer and dint change, 2->..., ...).*) - age: integer; - (*** is this picture used as reference*) - reference: integer; - (*** QP table*) - qscale_table: pchar; - (*** QP store stride*) - qstride: integer; - (*** mbskip_table[mb]>=1 if MB didnt change*) - 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 lavc *) - motion_val: array [0..1] of pointer; - (*** Macroblock type table - * mb_type_base + mb_width + 2 *) - 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)*) - motion_subsample_log2: byte; - (*** for some private data of the user*) - opaque: pointer; - (*** error*) - error: array [0..3] of int64; - (*** type of the buffer (to keep track of who has to dealloc data[*]) - * Note: user allocated (direct rendering) & internal buffers can not coexist currently*) - _type: integer; - (*** when decoding, this signal how much the picture must be delayed. - * extra_delay = repeat_pict / (2*fps)*) - repeat_pict: integer; - qscale_type: integer; - (*** The content of the picture is interlaced.*) - interlaced_frame: integer; - (*** if the content is interlaced, is top field displayed first.*) - top_field_first: integer; - (*** Pan scan.*) - pan_scan: PAVPanScan; - (*** tell user application that palette has changed from previous frame.*) - palette_has_changed: integer; - (*** Codec suggestion on buffer type if != 0 - * - decoding: set by lavc (before get_buffer() call))*) - buffer_hints: integer; - (*** DCT coeffitients*) - dct_coeff: PsmallInt; - (*** Motion referece frame index*) - ref_index: array [0..1] of pshortint; - end; - -const - DEFAULT_FRAME_RATE_BASE = 1001000; - - 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_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_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_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_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; - - 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_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 *) - -type - PAVClass = ^TAVClass; - PAVCodecContext = ^TAVCodecContext; - PAVCodec = ^TAVCodec; - PAVPaletteControl = ^TAVPaletteControl; - - 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; - - TAVCodecContext = record {720} - (*** Info 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 lavc. 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 needs additionnal format info. It is stored here - * - encoding: set by user. - * - decoding: set by lavc. (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 extra-data 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 - * then extradata_size to avoid prolems if its read with the bitstream reader - * the bytewise contents of extradata must not depend on the architecture or cpu endianness - * - encoding: set/allocated/freed by lavc. - * - 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 lavc. *) - time_base: TAVRational; - - (* video only *) - (*** picture width / height. - * - encoding: MUST be set by user. - * - decoding: set by lavc. - * Note, for compatibility its possible to set this instead of - * coded_width/height before decoding *) - width, height: integer; - (*** the number of pictures in a group of pitures, 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 lavc. *) - pix_fmt: TAVPixelFormat; - (*** Frame rate emulation. If not zero 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 an horizontal band. It improve cache usage. Not - * all codecs can do that. You must check the codec capabilities - * before - * - 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: PInteger; - y: integer; _type: integer; height: integer); cdecl; - - (* audio only *) - sample_rate: integer; ///< samples per sec - channels: integer; - (*** audio sample format. - * - encoding: set by user. - * - decoding: set by lavc. *) - 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 lavc. - * - 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 etween 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. - * deprecated in favor of skip_idct and skip_frame - * - encoding: unused - * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header *) - hurry_up: integer; - - codec: PAVCodec; - - priv_data: pointer; - - (* unused, FIXME remove*) - rtp_mode: integer; - - 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 lavc - * - 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 workaround some encoder bugs - * - encoding: set by user, if not then the default based on codec_id will be used - * - decoding: set by user, will be converted to upper case by lavc during init *) - codec_tag: cardinal; // можно array [0..3] of char - тогда видно FOURCC -// codec_tag: array [0..3] of char; - - (*** workaround bugs in encoders which sometimes cannot be detected automatically. - * - encoding: set by user - * - decoding: set by user *) - workaround_bugs: integer; - - (*** luma single coeff 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 std (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 missdetect - * 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 lavc - * 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 lavc, 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 lavc, 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 lavc - * - decoding: set by lavc *) - 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 lavc - * - 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; - - (* for binary compatibility *) - unused: integer; - - (*** idct algorithm, see FF_IDCT_* below. - * - encoding: set by user - * - decoding: set by user *) - idct_algo: integer; - - (*** slice count. - * - encoding: set by lavc - * - decoding: set by user (or 0) *) - slice_count: integer; - - (*** slice offsets in the frame in bytes. - * - encoding: set/allocated by lavc - * - 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 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 lavc - * - 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 relative prime and smaller then 256 for some video standards - * - encoding: set by user. - * - decoding: set by lavc. *) - sample_aspect_ratio: TAVRational; - - (*** the picture in the bitstream. - * - encoding: set by lavc - * - decoding: set by lavc *) - 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 lavc if flags&CODEC_FLAG_PSNR - * - decoding: unused *) - error: array [0..3] of int64; - - (*** minimum MB quantizer. - * - encoding: unused - * - decoding: unused *) - mb_qmin: integer; - - (*** maximum MB quantizer. - * - encoding: unused - * - decoding: unused *) - mb_qmax: integer; - - (*** motion estimation compare function. - * - encoding: set by user. - * - decoding: unused *) - me_cmp: integer; - - (*** subpixel motion estimation compare function. - * - encoding: set by user. - * - decoding: unused *) - me_sub_cmp: integer; - (*** macroblock compare function (not supported yet). - * - encoding: set by user. - * - decoding: unused *) - mb_cmp: integer; - (*** interlaced dct compare 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; - - (*** pre pass for motion estimation. - * - encoding: set by user. - * - decoding: unused *) - pre_me: integer; - - (*** motion estimation pre pass compare function. - * - encoding: set by user. - * - decoding: unused *) - me_pre_cmp: integer; - - (*** ME pre pass 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, - * its terminated by -1 as 0 is a valid format, the formats are ordered by quality - * the first is allways the native one - * @return the choosen format - * - encoding: unused - * - decoding: set by user, if not set then the native format will always be choosen - *) - get_format: function (s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat; cdecl; - - (*** DTG active format information (additionnal aspect ratio - * information only used in DVB MPEG2 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 - * table have to be stored somewhere FIXME *) - color_table_id: integer; - - (*** internal_buffer count. - * Don't touch, used by lavc default_get_buffer() *) - internal_buffer_count: integer; - - (*** internal_buffers. - * Don't touch, used by lavc default_get_buffer() *) - internal_buffer: pointer; - - (*** global quality for codecs which cannot change it per frame. - * this should be proportional to MPEG1/2/4 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; - - (*** 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 lavc *) - intra_matrix: Pword; - - (*** custom inter quantization matrix - * - encoding: set by user, can be NULL - * - decoding: set by lavc *) - inter_matrix: Pword; - - (*** fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). - * this is used to workaround some encoder bugs - * - encoding: unused - * - decoding: set by user, will be converted to upper case by lavc 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. lavc won't check it. - * lavc 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 lavc, 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; - 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 independant 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 independant 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 lavc, user can override - * - decoding: set by lavc, user can override *) - execute: function (c: PAVCodecContext; func: pointer; 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. under 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. under 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 lavc *) - profile: integer; - - (*** level - * - encoding: set by user - * - decoding: set by lavc *) - level: integer; - - (*** low resolution decoding. 1-> 1/2 size, 2->1/4 size - * - encoding: unused - * - decoding: set by user *) - lowres: integer; - - (*** bitsream 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 comparission 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 *) - crf: integer; - - (** - * 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") . Currently used only by FAAC - * - 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 functin 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; - 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; - buf: pchar; buf_size: integer): integer; cdecl; - capabilities: integer; -// todo: check this -> -// void *dummy; // FIXME remove next time we break binary compatibility - next: PAVCodec; - flush: procedure (avctx: PAVCodecContext); cdecl; - supported_framerates: PAVRational; ///array of supported framerates, or NULL if any, array is terminated by {0,0} - 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; - -(** - * AVPaletteControl - * This structure defines a method for communicating palette changes - * between and demuxer and a decoder. - * this is totally broken, palette changes should be sent as AVPackets - *) - 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; - - 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: PWord; input: PWord; 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: PWord; src: PWord; 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; - - -(* YUV420 format is assumed ! *) - - function img_resample_init (output_width: integer; output_height: integer; - input_width: integer; input_height: integer): PImgReSampleContext; - cdecl; external av__codec; - - 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; - - procedure img_resample (s: PImgReSampleContext; output: PAVPicture; const input: PAVPicture); - cdecl; external av__codec; - - procedure img_resample_close (s: PImgReSampleContext); - cdecl; external av__codec; - -(** - * 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 0 if successful, -1 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. *) - procedure avpicture_free (picture: PAVPicture); - cdecl; external av__codec; - - 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; - - 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; - - function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAVPixelFormat; - has_alpha: integer): integer; - cdecl; external av__codec; - - 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; - - function img_get_alpha_info (const src: PAVPicture; - pix_fmt: TAVPixelFormat; - width: integer; height: integer): integer; - cdecl; external av__codec; - - -(* convert among pixel formats *) - function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat; - const src: PAVPicture; pix_fmt: TAVPixelFormat; - width: integer; height: integer): integer; - cdecl; external av__codec; - -(* deinterlace a picture *) - function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; - cdecl; external av__codec; - -(* 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; - - procedure avcodec_init (); - cdecl; external av__codec; - - procedure register_avcodec (format: PAVCodec); - cdecl; external av__codec; - - function avcodec_find_encoder (id: TCodecID): PAVCodec; - cdecl; external av__codec; - function avcodec_find_encoder_by_name (name: pchar): PAVCodec; - cdecl; external av__codec; - function avcodec_find_decoder(id: TCodecID): PAVCodec; - cdecl; external av__codec; - 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; - - procedure avcodec_get_context_defaults (s: PAVCodecContext); - cdecl; external av__codec; - function avcodec_alloc_context : PAVCodecContext; - cdecl; external av__codec; -(* favourite of The Creative CAT - function avcodec_alloc_context (): PAVCodecContext; - cdecl; external av__codec; *) - procedure avcodec_get_frame_defaults (pic: PAVFrame); - cdecl; external av__codec; - function avcodec_alloc_frame : PAVFrame; - cdecl; external av__codec; -(* favourite of The Creative CAT - 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; - 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: pointer; arg: PPointer; ret: Pinteger; count: integer): integer; - cdecl; external av__codec; - function avcodec_default_execute (s: PAVCodecContext; func: pointer; arg: PPointer; ret: Pinteger; count: integer): integer; - cdecl; external av__codec; - - -//FIXME func typedef - -(** - * opens / inits the AVCodecContext. - * not thread save! - *) - function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer; - cdecl; external av__codec; - - -(** - * Decode an audio frame. - * - * @param avctx the codec context. - * @param samples output buffer, 16 byte aligned - * @param frame_size_ptr the output buffer size in bytes, zero if no frame could be compressed - * @param buf input buffer, 16 byte aligned - * @param buf_size the input buffer size - * @return 0 if successful, -1 if not. - *) - -(** This comment was added by the Creative CAT. frame_size_ptr was changed to - variable refference. - - * @deprecated Use avcodec_decode_audio2() instead. - *) - - function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword; - var frame_size_ptr: integer; - buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; -(* decode a frame. - * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes - * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end - * @param buf_size the size of the buffer in bytes - * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero - * @return -1 if error, otherwise return the number of - * bytes used. *) - - function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PWord; - var frame_size_ptr : integer; - buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; -(* Added by The Creative CAT -/** - * 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; (* favour of The Creative CAT *) - buf: PByte; buf_size: integer): integer; - cdecl; external av__codec; - - function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle; - got_sub_ptr: pinteger; - 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; - - function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte; - buf_size: integer; const samples: PWord): integer; - cdecl; external av__codec; - - (* avcodec_encode_video: -1 if error *) - (* type of the second argument is changed by The Creative CAT *) - 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; - - procedure avcodec_flush_buffers (avctx: PAVCodecContext); - cdecl; external av__codec; - procedure avcodec_default_free_buffers (s: PAVCodecContext); - cdecl; external av__codec; - -(* misc usefull functions *) - -(** - * returns a single letter to describe the picture type - *) - function av_get_pict_type_char (pict_type: integer): char; - cdecl; external av__codec; - - -(** - * returns codec bits per sample - *) -function av_get_bits_per_sample (codec_id: TCodecID): integer; - cdecl; external av__codec; - -const - AV_PARSER_PTS_NB = 4; - PARSER_FLAG_COMPLETE_FRAMES = $0001; - -type - 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; - 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; - 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; - - procedure av_register_codec_parser (parser: PAVCodecParser); cdecl; - 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; - 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; - - -(* memory *) - procedure av_fast_realloc (ptr: pointer; size: PCardinal; min_size: Cardinal); - cdecl; external av__codec; -(* for static data only *) -(* call av_free_static to release all staticaly allocated tables *) - procedure av_free_static (); - cdecl; external av__codec; - - procedure av_mallocz_static(size: cardinal); - cdecl; external av__codec; - - procedure av_realloc_static(ptr: pointer; size: Cardinal); - cdecl; external av__codec; - - procedure img_copy (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; width: integer; height: integer); - cdecl; external av__codec; - - function img_crop (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer; - cdecl; external av__codec; - - 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; - -implementation - -end. +{$ENDIF}
+
+
+ LIBAVUTIL_VERSION_INT = ((51 shl 16) + (12 shl 8) + 1);
+ LIBAVUTIL_VERSION = '51.12.1';
+ LIBAVUTIL_BUILD = LIBAVUTIL_VERSION_INT;
+
+ AV_NOPTS_VALUE: int64 = $8000000000000000;
+ AV_TIME_BASE = 1000000;
+ AV_TIME_BASE_Q : TAVRational = (num:1; den:AV_TIME_BASE); (* added by CAT *)
+
+type
+ TCodecID = (
+ CODEC_ID_NONE, CODEC_ID_MPEG1VIDEO,
+ CODEC_ID_MPEG2VIDEO, //* prefered ID for MPEG Video 1 or 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,
+
+ //* 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,
+ //* 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,
+ //* 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, //* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
+ CODEC_ID_AAC, CODEC_ID_MPEG4AAC, 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, CODEC_ID_QDM2,
+ CODEC_ID_COOK, CODEC_ID_TRUESPEECH, CODEC_ID_TTA, CODEC_ID_SMACKAUDIO,
+ CODEC_ID_QCELP, CODEC_ID_WAVPACK,
+ //* subtitle codecs */
+ CODEC_ID_DVD_SUBTITLE= $17000, CODEC_ID_DVB_SUBTITLE,
+
+ CODEC_ID_MPEG2TS= $20000 //* _FAKE_ codec to indicate a raw MPEG2 transport
+ // stream (only used by libavformat) */
+ );
+
+//* CODEC_ID_MP3LAME is absolete */
+const
+ CODEC_ID_MP3LAME = CODEC_ID_MP3;
+
+ AVPALETTE_SIZE = 1024;
+ AVPALETTE_COUNT = 256;
+
+type
+ TCodecType = (
+ CODEC_TYPE_UNKNOWN = -1,
+ CODEC_TYPE_VIDEO,
+ CODEC_TYPE_AUDIO,
+ CODEC_TYPE_DATA,
+ CODEC_TYPE_SUBTITLE,
+ CODEC_TYPE_NB (* CAT#3 *)
+ );
+
+//* currently unused, may be used if 24/32 bits samples ever supported */
+//* all in native endian */
+ 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, EPZS by default */
+ TMotion_Est_ID = (
+ ME_ZERO = 1,
+ ME_FULL,
+ ME_LOG,
+ ME_PHODS,
+ ME_EPZS,
+ ME_X1,
+ ME_HEX,
+ ME_UMH,
+ ME_ITER
+ );
+
+ 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
+ AVDISCARD_FUCK = $FFFFFF
+ );
+
+ 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 initing
+ 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
+//* parent program gurantees that the input for b-frame containing streams is not written to
+// for at least s->max_b_frames+1 frames, if this is not set than 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 */
+ CODEC_FLAG_H263P_AIC = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
+ 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)
+
+(* Unsupported options :
+ * Syntax Arithmetic coding (SAC)
+ * Reference Picture Selection
+ * Independant Segment Decoding */
+/* /Fx */
+/* codec capabilities *)
+
+const
+ CODEC_CAP_DRAW_HORIZ_BAND = $001; ///< decoder can use draw_horiz_band callback
+(**
+ * Codec uses get_buffer() for allocating buffers.
+ * direct rendering method 1 *)
+ CODEC_CAP_DR1 = $002;
+(* if 'parse_only' field is true, then avcodec_parse_frame() can be used *)
+ CODEC_CAP_PARSE_ONLY = $004;
+ CODEC_CAP_TRUNCATED = $008;
+//* codec can export data for HW decoding (XvMC) */
+ CODEC_CAP_HWACCEL = $010;
+
+(**
+ * 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 lavc *)
+ id: integer;
+
+ (*** width and height in 1/16 pel
+ * - encoding: set by user.
+ * - decoding: set by lavc *)
+ 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 lavc *)
+ position: array [0..2] of array [0..1] of smallint;
+ end;
+
+const
+ FF_QSCALE_TYPE_MPEG1 = 0;
+ FF_QSCALE_TYPE_MPEG2 = 1;
+
+ 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. *)
+ PAVFrame = ^TAVFrame;
+ TAVFrame = record {200}
+ (*** pointer to the picture planes.
+ * this might be different from the first allocated byte *)
+ 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 lavc unless the default get/release_buffer() is used*)
+ base: array [0..3] of pbyte;
+ (*** 1 -> keyframe, 0-> not *)
+ key_frame: integer;
+ (*** picture type of the frame, see ?_TYPE below.*)
+ 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*)
+ pts: int64;
+ (*** picture number in bitstream order.*)
+ coded_picture_number: integer;
+ (*** picture number in display order.*)
+ display_picture_number: integer;
+ (*** quality (between 1 (good) and FF_LAMBDA_MAX (bad)) *)
+ quality: integer;
+ (*** buffer age (1->was last buffer and dint change, 2->..., ...).*)
+ age: integer;
+ (*** is this picture used as reference*)
+ reference: integer;
+ (*** QP table*)
+ qscale_table: pchar;
+ (*** QP store stride*)
+ qstride: integer;
+ (*** mbskip_table[mb]>=1 if MB didnt change*)
+ 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 lavc *)
+ motion_val: array [0..1] of pointer;
+ (*** Macroblock type table
+ * mb_type_base + mb_width + 2 *)
+ 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)*)
+ motion_subsample_log2: byte;
+ (*** for some private data of the user*)
+ opaque: pointer;
+ (*** error*)
+ error: array [0..3] of int64;
+ (*** type of the buffer (to keep track of who has to dealloc data[*])
+ * Note: user allocated (direct rendering) & internal buffers can not coexist currently*)
+ _type: integer;
+ (*** when decoding, this signal how much the picture must be delayed.
+ * extra_delay = repeat_pict / (2*fps)*)
+ repeat_pict: integer;
+ qscale_type: integer;
+ (*** The content of the picture is interlaced.*)
+ interlaced_frame: integer;
+ (*** if the content is interlaced, is top field displayed first.*)
+ top_field_first: integer;
+ (*** Pan scan.*)
+ pan_scan: PAVPanScan;
+ (*** tell user application that palette has changed from previous frame.*)
+ palette_has_changed: integer;
+ (*** Codec suggestion on buffer type if != 0
+ * - decoding: set by lavc (before get_buffer() call))*)
+ buffer_hints: integer;
+ (*** DCT coeffitients*)
+ dct_coeff: PsmallInt;
+ (*** Motion referece frame index*)
+ ref_index: array [0..1] of pshortint;
+ end;
+
+const
+ DEFAULT_FRAME_RATE_BASE = 1001000;
+
+ 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_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_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_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_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;
+
+ 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_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 *)
+
+type
+ PAVClass = ^TAVClass;
+ PAVCodecContext = ^TAVCodecContext;
+ PAVCodec = ^TAVCodec;
+ PAVPaletteControl = ^TAVPaletteControl;
+
+ 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;
+
+ TAVCodecContext = record {720}
+ (*** Info 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 lavc. 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 needs additionnal format info. It is stored here
+ * - encoding: set by user.
+ * - decoding: set by lavc. (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 extra-data 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
+ * then extradata_size to avoid prolems if its read with the bitstream reader
+ * the bytewise contents of extradata must not depend on the architecture or cpu endianness
+ * - encoding: set/allocated/freed by lavc.
+ * - 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 lavc. *)
+ time_base: TAVRational;
+
+ (* video only *)
+ (*** picture width / height.
+ * - encoding: MUST be set by user.
+ * - decoding: set by lavc.
+ * Note, for compatibility its possible to set this instead of
+ * coded_width/height before decoding *)
+ width, height: integer;
+ (*** the number of pictures in a group of pitures, 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 lavc. *)
+ pix_fmt: TAVPixelFormat;
+ (*** Frame rate emulation. If not zero 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 an horizontal band. It improve cache usage. Not
+ * all codecs can do that. You must check the codec capabilities
+ * before
+ * - 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: PInteger;
+ y: integer; _type: integer; height: integer); cdecl;
+
+ (* audio only *)
+ sample_rate: integer; ///< samples per sec
+ channels: integer;
+ (*** audio sample format.
+ * - encoding: set by user.
+ * - decoding: set by lavc. *)
+ 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 lavc.
+ * - 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 etween 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.
+ * deprecated in favor of skip_idct and skip_frame
+ * - encoding: unused
+ * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header *)
+ hurry_up: integer;
+
+ codec: PAVCodec;
+
+ priv_data: pointer;
+
+ (* unused, FIXME remove*)
+ rtp_mode: integer;
+
+ 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 lavc
+ * - 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 workaround some encoder bugs
+ * - encoding: set by user, if not then the default based on codec_id will be used
+ * - decoding: set by user, will be converted to upper case by lavc during init *)
+ codec_tag: cardinal; // можно array [0..3] of char - тогда видно FOURCC
+// codec_tag: array [0..3] of char;
+
+ (*** workaround bugs in encoders which sometimes cannot be detected automatically.
+ * - encoding: set by user
+ * - decoding: set by user *)
+ workaround_bugs: integer;
+
+ (*** luma single coeff 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 std (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 missdetect
+ * 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 lavc
+ * 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 lavc, 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 lavc, 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 lavc
+ * - decoding: set by lavc *)
+ 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 lavc
+ * - 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;
+
+ (* for binary compatibility *)
+ unused: integer;
+
+ (*** idct algorithm, see FF_IDCT_* below.
+ * - encoding: set by user
+ * - decoding: set by user *)
+ idct_algo: integer;
+
+ (*** slice count.
+ * - encoding: set by lavc
+ * - decoding: set by user (or 0) *)
+ slice_count: integer;
+
+ (*** slice offsets in the frame in bytes.
+ * - encoding: set/allocated by lavc
+ * - 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 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 lavc
+ * - 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 relative prime and smaller then 256 for some video standards
+ * - encoding: set by user.
+ * - decoding: set by lavc. *)
+ sample_aspect_ratio: TAVRational;
+
+ (*** the picture in the bitstream.
+ * - encoding: set by lavc
+ * - decoding: set by lavc *)
+ 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 lavc if flags&CODEC_FLAG_PSNR
+ * - decoding: unused *)
+ error: array [0..3] of int64;
+
+ (*** minimum MB quantizer.
+ * - encoding: unused
+ * - decoding: unused *)
+ mb_qmin: integer;
+
+ (*** maximum MB quantizer.
+ * - encoding: unused
+ * - decoding: unused *)
+ mb_qmax: integer;
+
+ (*** motion estimation compare function.
+ * - encoding: set by user.
+ * - decoding: unused *)
+ me_cmp: integer;
+
+ (*** subpixel motion estimation compare function.
+ * - encoding: set by user.
+ * - decoding: unused *)
+ me_sub_cmp: integer;
+ (*** macroblock compare function (not supported yet).
+ * - encoding: set by user.
+ * - decoding: unused *)
+ mb_cmp: integer;
+ (*** interlaced dct compare 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;
+
+ (*** pre pass for motion estimation.
+ * - encoding: set by user.
+ * - decoding: unused *)
+ pre_me: integer;
+
+ (*** motion estimation pre pass compare function.
+ * - encoding: set by user.
+ * - decoding: unused *)
+ me_pre_cmp: integer;
+
+ (*** ME pre pass 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,
+ * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
+ * the first is allways the native one
+ * @return the choosen format
+ * - encoding: unused
+ * - decoding: set by user, if not set then the native format will always be choosen
+ *)
+ get_format: function (s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat; cdecl;
+
+ (*** DTG active format information (additionnal aspect ratio
+ * information only used in DVB MPEG2 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
+ * table have to be stored somewhere FIXME *)
+ color_table_id: integer;
+
+ (*** internal_buffer count.
+ * Don't touch, used by lavc default_get_buffer() *)
+ internal_buffer_count: integer;
+
+ (*** internal_buffers.
+ * Don't touch, used by lavc default_get_buffer() *)
+ internal_buffer: pointer;
+
+ (*** global quality for codecs which cannot change it per frame.
+ * this should be proportional to MPEG1/2/4 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;
+
+ (*** 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 lavc *)
+ intra_matrix: Pword;
+
+ (*** custom inter quantization matrix
+ * - encoding: set by user, can be NULL
+ * - decoding: set by lavc *)
+ inter_matrix: Pword;
+
+ (*** fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * this is used to workaround some encoder bugs
+ * - encoding: unused
+ * - decoding: set by user, will be converted to upper case by lavc 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. lavc won't check it.
+ * lavc 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 lavc, 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;
+ 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 independant 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 independant 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 lavc, user can override
+ * - decoding: set by lavc, user can override *)
+ execute: function (c: PAVCodecContext; func: pointer; 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. under 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. under 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 lavc *)
+ profile: integer;
+
+ (*** level
+ * - encoding: set by user
+ * - decoding: set by lavc *)
+ level: integer;
+
+ (*** low resolution decoding. 1-> 1/2 size, 2->1/4 size
+ * - encoding: unused
+ * - decoding: set by user *)
+ lowres: integer;
+
+ (*** bitsream 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 comparission 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 *)
+ crf: integer;
+
+ (**
+ * 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") . Currently used only by FAAC
+ * - 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 functin 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;
+ 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;
+ buf: pchar; buf_size: integer): integer; cdecl;
+ capabilities: integer;
+// todo: check this ->
+// void *dummy; // FIXME remove next time we break binary compatibility
+ next: PAVCodec;
+ flush: procedure (avctx: PAVCodecContext); cdecl;
+ supported_framerates: PAVRational; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
+ 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;
+
+(**
+ * AVPaletteControl
+ * This structure defines a method for communicating palette changes
+ * between and demuxer and a decoder.
+ * this is totally broken, palette changes should be sent as AVPackets
+ *)
+ 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;
+
+ 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: PWord; input: PWord; 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: PWord; src: PWord; 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;
+
+
+(* YUV420 format is assumed ! *)
+
+ function img_resample_init (output_width: integer; output_height: integer;
+ input_width: integer; input_height: integer): PImgReSampleContext;
+ cdecl; external av__codec;
+
+ 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;
+
+ procedure img_resample (s: PImgReSampleContext; output: PAVPicture; const input: PAVPicture);
+ cdecl; external av__codec;
+
+ procedure img_resample_close (s: PImgReSampleContext);
+ cdecl; external av__codec;
+
+(**
+ * 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 0 if successful, -1 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. *)
+ procedure avpicture_free (picture: PAVPicture);
+ cdecl; external av__codec;
+
+ 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;
+
+ 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;
+
+ function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAVPixelFormat;
+ has_alpha: integer): integer;
+ cdecl; external av__codec;
+
+ 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;
+
+ function img_get_alpha_info (const src: PAVPicture;
+ pix_fmt: TAVPixelFormat;
+ width: integer; height: integer): integer;
+ cdecl; external av__codec;
+
+
+(* convert among pixel formats *)
+ function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat;
+ const src: PAVPicture; pix_fmt: TAVPixelFormat;
+ width: integer; height: integer): integer;
+ cdecl; external av__codec;
+
+(* deinterlace a picture *)
+ function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture;
+ pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
+ cdecl; external av__codec;
+
+(* 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;
+
+ procedure avcodec_init ();
+ cdecl; external av__codec;
+
+ procedure register_avcodec (format: PAVCodec);
+ cdecl; external av__codec;
+
+ function avcodec_find_encoder (id: TCodecID): PAVCodec;
+ cdecl; external av__codec;
+ function avcodec_find_encoder_by_name (name: pchar): PAVCodec;
+ cdecl; external av__codec;
+ function avcodec_find_decoder(id: TCodecID): PAVCodec;
+ cdecl; external av__codec;
+ 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;
+
+ procedure avcodec_get_context_defaults (s: PAVCodecContext);
+ cdecl; external av__codec;
+ function avcodec_alloc_context : PAVCodecContext;
+ cdecl; external av__codec;
+(* favourite of The Creative CAT
+ function avcodec_alloc_context (): PAVCodecContext;
+ cdecl; external av__codec; *)
+ procedure avcodec_get_frame_defaults (pic: PAVFrame);
+ cdecl; external av__codec;
+ function avcodec_alloc_frame : PAVFrame;
+ cdecl; external av__codec;
+(* favourite of The Creative CAT
+ 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;
+ 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: pointer; arg: PPointer; ret: Pinteger; count: integer): integer;
+ cdecl; external av__codec;
+ function avcodec_default_execute (s: PAVCodecContext; func: pointer; arg: PPointer; ret: Pinteger; count: integer): integer;
+ cdecl; external av__codec;
+
+
+//FIXME func typedef
+
+(**
+ * opens / inits the AVCodecContext.
+ * not thread save!
+ *)
+ function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer;
+ cdecl; external av__codec;
+
+
+(**
+ * Decode an audio frame.
+ *
+ * @param avctx the codec context.
+ * @param samples output buffer, 16 byte aligned
+ * @param frame_size_ptr the output buffer size in bytes, zero if no frame could be compressed
+ * @param buf input buffer, 16 byte aligned
+ * @param buf_size the input buffer size
+ * @return 0 if successful, -1 if not.
+ *)
+
+(** This comment was added by the Creative CAT. frame_size_ptr was changed to
+ variable refference.
+
+ * @deprecated Use avcodec_decode_audio2() instead.
+ *)
+
+ function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword;
+ var frame_size_ptr: integer;
+ buf: pchar; buf_size: integer): integer;
+ cdecl; external av__codec;
+(* decode a frame.
+ * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
+ * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
+ * @param buf_size the size of the buffer in bytes
+ * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
+ * @return -1 if error, otherwise return the number of
+ * bytes used. *)
+
+ function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PWord;
+ var frame_size_ptr : integer;
+ buf: pchar; buf_size: integer): integer;
+ cdecl; external av__codec;
+(* Added by The Creative CAT
+/**
+ * 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; (* favour of The Creative CAT *)
+ buf: PByte; buf_size: integer): integer;
+ cdecl; external av__codec;
+
+ function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle;
+ got_sub_ptr: pinteger;
+ 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;
+
+ function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte;
+ buf_size: integer; const samples: PWord): integer;
+ cdecl; external av__codec;
+
+ (* avcodec_encode_video: -1 if error *)
+ (* type of the second argument is changed by The Creative CAT *)
+ 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;
+
+ procedure avcodec_flush_buffers (avctx: PAVCodecContext);
+ cdecl; external av__codec;
+ procedure avcodec_default_free_buffers (s: PAVCodecContext);
+ cdecl; external av__codec;
+
+(* misc usefull functions *)
+
+(**
+ * returns a single letter to describe the picture type
+ *)
+ function av_get_pict_type_char (pict_type: integer): char;
+ cdecl; external av__codec;
+
+
+(**
+ * returns codec bits per sample
+ *)
+function av_get_bits_per_sample (codec_id: TCodecID): integer;
+ cdecl; external av__codec;
+
+const
+ AV_PARSER_PTS_NB = 4;
+ PARSER_FLAG_COMPLETE_FRAMES = $0001;
+
+type
+ 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;
+ 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;
+ 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;
+
+ procedure av_register_codec_parser (parser: PAVCodecParser); cdecl;
+ 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;
+ 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;
+
+
+(* memory *)
+ procedure av_fast_realloc (ptr: pointer; size: PCardinal; min_size: Cardinal);
+ cdecl; external av__codec;
+(* for static data only *)
+(* call av_free_static to release all staticaly allocated tables *)
+ procedure av_free_static ();
+ cdecl; external av__codec;
+
+ procedure av_mallocz_static(size: cardinal);
+ cdecl; external av__codec;
+
+ procedure av_realloc_static(ptr: pointer; size: Cardinal);
+ cdecl; external av__codec;
+
+ procedure img_copy (dst: PAVPicture; const src: PAVPicture;
+ pix_fmt: TAVPixelFormat; width: integer; height: integer);
+ cdecl; external av__codec;
+
+ function img_crop (dst: PAVPicture; const src: PAVPicture;
+ pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer;
+ cdecl; external av__codec;
+
+ 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;
+
+implementation
+
+end.
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