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author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-08-30 18:12:06 +0000 |
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committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2008-08-30 18:12:06 +0000 |
commit | 5f11f9f3e328f6818a42f0a3405404612399c64e (patch) | |
tree | 66f4cfcde3c1d4b0564ba47aceeb2d04082a7dfb /Game/Code/lib/ffmpeg/avcodec.pas | |
parent | d4ec88adaa7a93d1970c116ae3d621ff05683681 (diff) | |
download | usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.tar.gz usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.tar.xz usdx-5f11f9f3e328f6818a42f0a3405404612399c64e.zip |
Removed outdated 1.1 branch contents
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/1.1@1331 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'Game/Code/lib/ffmpeg/avcodec.pas')
-rw-r--r-- | Game/Code/lib/ffmpeg/avcodec.pas | 3225 |
1 files changed, 0 insertions, 3225 deletions
diff --git a/Game/Code/lib/ffmpeg/avcodec.pas b/Game/Code/lib/ffmpeg/avcodec.pas deleted file mode 100644 index cdb9b7d4..00000000 --- a/Game/Code/lib/ffmpeg/avcodec.pas +++ /dev/null @@ -1,3225 +0,0 @@ -(* - * copyright (c) 2001 Fabrice Bellard - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - *) - -(* This is a part of Pascal porting of ffmpeg. - * Originally by Victor Zinetz for Delphi and Free Pascal on Windows. - * For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT - * in the source codes *) - -(* - * Min. version: 51.16.0 - * Max. version: 51.50.0, Revision: 11878, Wed Feb 6 12:37:37 2008 UTC - *) - -unit avcodec; - -{$IFDEF FPC} - {$MODE DELPHI } - {$PACKENUM 4} (* use 4-byte enums *) - {$PACKRECORDS C} (* C/C++-compatible record packing *) -{$ELSE} - {$MINENUMSIZE 4} (* use 4-byte enums *) -{$ENDIF} - -interface - -uses - avutil, - rational, - opt, - UConfig; - -const - (* Max. supported version by this header *) - LIBAVCODEC_MAX_VERSION_MAJOR = 51; - LIBAVCODEC_MAX_VERSION_MINOR = 50; - LIBAVCODEC_MAX_VERSION_RELEASE = 0; - LIBAVCODEC_MAX_VERSION = (LIBAVCODEC_MAX_VERSION_MAJOR * VERSION_MAJOR) + - (LIBAVCODEC_MAX_VERSION_MINOR * VERSION_MINOR) + - (LIBAVCODEC_MAX_VERSION_RELEASE * VERSION_RELEASE); - -(* Check if linked version is supported *) -{$IF (LIBAVCODEC_VERSION > LIBAVCODEC_MAX_VERSION)} - {$MESSAGE Warn 'Linked version of libavcodec may be unsupported!'} -{$IFEND} - -const - AV_NOPTS_VALUE: int64 = $8000000000000000; - AV_TIME_BASE = 1000000; - AV_TIME_BASE_Q : TAVRational = (num:1; den:AV_TIME_BASE); (* added by CAT *) - -(** - * Identifies the syntax and semantics of the bitstream. - * The principle is roughly: - * Two decoders with the same ID can decode the same streams. - * Two encoders with the same ID can encode compatible streams. - * There may be slight deviations from the principle due to implementation - * details. - * - * If you add a codec ID to this list, add it so that - * 1. no value of a existing codec ID changes (that would break ABI), - * 2. it is as close as possible to similar codecs. - *) -type - TCodecID = ( - CODEC_ID_NONE, - CODEC_ID_MPEG1VIDEO, - CODEC_ID_MPEG2VIDEO, //* prefered ID for MPEG Video 1/2 decoding */ - CODEC_ID_MPEG2VIDEO_XVMC, - CODEC_ID_H261, - CODEC_ID_H263, - CODEC_ID_RV10, - CODEC_ID_RV20, - CODEC_ID_MJPEG, - CODEC_ID_MJPEGB, - CODEC_ID_LJPEG, - CODEC_ID_SP5X, - CODEC_ID_JPEGLS, - CODEC_ID_MPEG4, - CODEC_ID_RAWVIDEO, - CODEC_ID_MSMPEG4V1, - CODEC_ID_MSMPEG4V2, - CODEC_ID_MSMPEG4V3, - CODEC_ID_WMV1, - CODEC_ID_WMV2, - CODEC_ID_H263P, - CODEC_ID_H263I, - CODEC_ID_FLV1, - CODEC_ID_SVQ1, - CODEC_ID_SVQ3, - CODEC_ID_DVVIDEO, - CODEC_ID_HUFFYUV, - CODEC_ID_CYUV, - CODEC_ID_H264, - CODEC_ID_INDEO3, - CODEC_ID_VP3, - CODEC_ID_THEORA, - CODEC_ID_ASV1, - CODEC_ID_ASV2, - CODEC_ID_FFV1, - CODEC_ID_4XM, - CODEC_ID_VCR1, - CODEC_ID_CLJR, - CODEC_ID_MDEC, - CODEC_ID_ROQ, - CODEC_ID_INTERPLAY_VIDEO, - CODEC_ID_XAN_WC3, - CODEC_ID_XAN_WC4, - CODEC_ID_RPZA, - CODEC_ID_CINEPAK, - CODEC_ID_WS_VQA, - CODEC_ID_MSRLE, - CODEC_ID_MSVIDEO1, - CODEC_ID_IDCIN, - CODEC_ID_8BPS, - CODEC_ID_SMC, - CODEC_ID_FLIC, - CODEC_ID_TRUEMOTION1, - CODEC_ID_VMDVIDEO, - CODEC_ID_MSZH, - CODEC_ID_ZLIB, - CODEC_ID_QTRLE, - CODEC_ID_SNOW, - CODEC_ID_TSCC, - CODEC_ID_ULTI, - CODEC_ID_QDRAW, - CODEC_ID_VIXL, - CODEC_ID_QPEG, - CODEC_ID_XVID, - CODEC_ID_PNG, - CODEC_ID_PPM, - CODEC_ID_PBM, - CODEC_ID_PGM, - CODEC_ID_PGMYUV, - CODEC_ID_PAM, - CODEC_ID_FFVHUFF, - CODEC_ID_RV30, - CODEC_ID_RV40, - CODEC_ID_VC1, - CODEC_ID_WMV3, - CODEC_ID_LOCO, - CODEC_ID_WNV1, - CODEC_ID_AASC, - CODEC_ID_INDEO2, - CODEC_ID_FRAPS, - CODEC_ID_TRUEMOTION2, - CODEC_ID_BMP, - CODEC_ID_CSCD, - CODEC_ID_MMVIDEO, - CODEC_ID_ZMBV, - CODEC_ID_AVS, - CODEC_ID_SMACKVIDEO, - CODEC_ID_NUV, - CODEC_ID_KMVC, - CODEC_ID_FLASHSV, - CODEC_ID_CAVS, - CODEC_ID_JPEG2000, - CODEC_ID_VMNC, - CODEC_ID_VP5, - CODEC_ID_VP6, - CODEC_ID_VP6F, - CODEC_ID_TARGA, - CODEC_ID_DSICINVIDEO, - CODEC_ID_TIERTEXSEQVIDEO, - CODEC_ID_TIFF, - CODEC_ID_GIF, - CODEC_ID_FFH264, - CODEC_ID_DXA, - CODEC_ID_DNXHD, - CODEC_ID_THP, - CODEC_ID_SGI, - CODEC_ID_C93, - CODEC_ID_BETHSOFTVID, - CODEC_ID_PTX, - CODEC_ID_TXD, - CODEC_ID_VP6A, - CODEC_ID_AMV, - CODEC_ID_VB, - CODEC_ID_PCX, - CODEC_ID_SUNRAST, - - //* various PCM "codecs" */ - CODEC_ID_PCM_S16LE= $10000, - CODEC_ID_PCM_S16BE, - CODEC_ID_PCM_U16LE, - CODEC_ID_PCM_U16BE, - CODEC_ID_PCM_S8, - CODEC_ID_PCM_U8, - CODEC_ID_PCM_MULAW, - CODEC_ID_PCM_ALAW, - CODEC_ID_PCM_S32LE, - CODEC_ID_PCM_S32BE, - CODEC_ID_PCM_U32LE, - CODEC_ID_PCM_U32BE, - CODEC_ID_PCM_S24LE, - CODEC_ID_PCM_S24BE, - CODEC_ID_PCM_U24LE, - CODEC_ID_PCM_U24BE, - CODEC_ID_PCM_S24DAUD, - CODEC_ID_PCM_ZORK, - CODEC_ID_PCM_S16LE_PLANAR, - - //* various ADPCM codecs */ - CODEC_ID_ADPCM_IMA_QT= $11000, - CODEC_ID_ADPCM_IMA_WAV, - CODEC_ID_ADPCM_IMA_DK3, - CODEC_ID_ADPCM_IMA_DK4, - CODEC_ID_ADPCM_IMA_WS, - CODEC_ID_ADPCM_IMA_SMJPEG, - CODEC_ID_ADPCM_MS, - CODEC_ID_ADPCM_4XM, - CODEC_ID_ADPCM_XA, - CODEC_ID_ADPCM_ADX, - CODEC_ID_ADPCM_EA, - CODEC_ID_ADPCM_G726, - CODEC_ID_ADPCM_CT, - CODEC_ID_ADPCM_SWF, - CODEC_ID_ADPCM_YAMAHA, - CODEC_ID_ADPCM_SBPRO_4, - CODEC_ID_ADPCM_SBPRO_3, - CODEC_ID_ADPCM_SBPRO_2, - CODEC_ID_ADPCM_THP, - CODEC_ID_ADPCM_IMA_AMV, - CODEC_ID_ADPCM_EA_R1, - CODEC_ID_ADPCM_EA_R3, - CODEC_ID_ADPCM_EA_R2, - CODEC_ID_ADPCM_IMA_EA_SEAD, - CODEC_ID_ADPCM_IMA_EA_EACS, - CODEC_ID_ADPCM_EA_XAS, - - //* AMR */ - CODEC_ID_AMR_NB= $12000, - CODEC_ID_AMR_WB, - - //* RealAudio codecs*/ - CODEC_ID_RA_144= $13000, - CODEC_ID_RA_288, - - //* various DPCM codecs */ - CODEC_ID_ROQ_DPCM= $14000, - CODEC_ID_INTERPLAY_DPCM, - CODEC_ID_XAN_DPCM, - CODEC_ID_SOL_DPCM, - - CODEC_ID_MP2= $15000, - CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3 - CODEC_ID_AAC, - {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 - _CODEC_ID_MPEG4AAC, // will be redefined to CODEC_ID_AAC below - {$IFEND} - CODEC_ID_AC3, - CODEC_ID_DTS, - CODEC_ID_VORBIS, - CODEC_ID_DVAUDIO, - CODEC_ID_WMAV1, - CODEC_ID_WMAV2, - CODEC_ID_MACE3, - CODEC_ID_MACE6, - CODEC_ID_VMDAUDIO, - CODEC_ID_SONIC, - CODEC_ID_SONIC_LS, - CODEC_ID_FLAC, - CODEC_ID_MP3ADU, - CODEC_ID_MP3ON4, - CODEC_ID_SHORTEN, - CODEC_ID_ALAC, - CODEC_ID_WESTWOOD_SND1, - CODEC_ID_GSM, ///< as in Berlin toast format - CODEC_ID_QDM2, - CODEC_ID_COOK, - CODEC_ID_TRUESPEECH, - CODEC_ID_TTA, - CODEC_ID_SMACKAUDIO, - CODEC_ID_QCELP, - CODEC_ID_WAVPACK, - CODEC_ID_DSICINAUDIO, - CODEC_ID_IMC, - CODEC_ID_MUSEPACK7, - CODEC_ID_MLP, - CODEC_ID_GSM_MS, { as found in WAV } - CODEC_ID_ATRAC3, - CODEC_ID_VOXWARE, - CODEC_ID_APE, - CODEC_ID_NELLYMOSER, - CODEC_ID_MUSEPACK8, - CODEC_ID_SPEEX, - - //* subtitle codecs */ - CODEC_ID_DVD_SUBTITLE= $17000, - CODEC_ID_DVB_SUBTITLE, - CODEC_ID_TEXT, ///< raw UTF-8 text - CODEC_ID_XSUB, - CODEC_ID_SSA, - CODEC_ID_MOV_TEXT, - - (* other specific kind of codecs (generaly used for attachments) *) - CODEC_ID_TTF= $18000, - - CODEC_ID_MPEG2TS= $20000, {*< _FAKE_ codec to indicate a raw MPEG-2 TS - * stream (only used by libavformat) *} - __CODEC_ID_4BYTE = $FFFFF // ensure 4-byte enum - ); - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -{* CODEC_ID_MP3LAME is obsolete *} -const - CODEC_ID_MP3LAME = CODEC_ID_MP3; - CODEC_ID_MPEG4AAC = CODEC_ID_AAC; -{$IFEND} - -type - TCodecType = ( - CODEC_TYPE_UNKNOWN = -1, - CODEC_TYPE_VIDEO, - CODEC_TYPE_AUDIO, - CODEC_TYPE_DATA, - CODEC_TYPE_SUBTITLE, - CODEC_TYPE_ATTACHMENT, - CODEC_TYPE_NB - ); - -{** - * currently unused, may be used if 24/32 bits samples ever supported */ - * all in native endian - *} -type - TSampleFormat = ( - SAMPLE_FMT_NONE = -1, - SAMPLE_FMT_U8, ///< unsigned 8 bits - SAMPLE_FMT_S16, ///< signed 16 bits - SAMPLE_FMT_S24, ///< signed 24 bits - SAMPLE_FMT_S32, ///< signed 32 bits - SAMPLE_FMT_FLT ///< float - ); - -const - {* in bytes *} - AVCODEC_MAX_AUDIO_FRAME_SIZE = 192000; // 1 second of 48khz 32bit audio - -{** - * Required number of additionally allocated bytes at the end of the input bitstream for decoding. - * This is mainly needed because some optimized bitstream readers read - * 32 or 64 bit at once and could read over the end.<br> - * Note: If the first 23 bits of the additional bytes are not 0, then damaged - * MPEG bitstreams could cause overread and segfault. - *} - FF_INPUT_BUFFER_PADDING_SIZE = 8; - -{** - * minimum encoding buffer size. - * Used to avoid some checks during header writing. - *} - FF_MIN_BUFFER_SIZE = 16384; - -type -{* - * motion estimation type. - *} - TMotion_Est_ID = ( - ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed - ME_FULL, - ME_LOG, - ME_PHODS, - ME_EPZS, ///< enhanced predictive zonal search - ME_X1, ///< reserved for experiments - ME_HEX, ///< hexagon based search - ME_UMH, ///< uneven multi-hexagon search - ME_ITER ///< iterative search - ); - - TAVDiscard = ( - {* We leave some space between them for extensions (drop some - * keyframes for intra-only or drop just some bidir frames). *} - AVDISCARD_NONE =-16, ///< discard nothing - AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi - AVDISCARD_NONREF = 8, ///< discard all non reference - AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames - AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes - AVDISCARD_ALL = 48 ///< discard all - ); - - PRcOverride = ^TRcOverride; - TRcOverride = record {16} - start_frame: integer; - end_frame: integer; - qscale: integer; // if this is 0 then quality_factor will be used instead - quality_factor: single; - end; - -const - FF_MAX_B_FRAMES = 16; - -{* encoding support - These flags can be passed in AVCodecContext.flags before initialization. - Note: Not everything is supported yet. -*} - - CODEC_FLAG_QSCALE = $0002; ///< Use fixed qscale. - CODEC_FLAG_4MV = $0004; ///< 4 MV per MB allowed / advanced prediction for H263. - CODEC_FLAG_QPEL = $0010; ///< use qpel MC. - CODEC_FLAG_GMC = $0020; ///< use GMC. - CODEC_FLAG_MV0 = $0040; ///< always try a MB with MV=<0,0>. - CODEC_FLAG_PART = $0080; ///< Use data partitioning. - {** - * The parent program guarantees that the input for B-frames containing - * streams is not written to for at least s->max_b_frames+1 frames, if - * this is not set the input will be copied. - *} - CODEC_FLAG_INPUT_PRESERVED = $0100; - CODEC_FLAG_PASS1 = $0200; ///< use internal 2pass ratecontrol in first pass mode - CODEC_FLAG_PASS2 = $0400; ///< use internal 2pass ratecontrol in second pass mode - CODEC_FLAG_EXTERN_HUFF = $1000; ///< use external huffman table (for mjpeg) - CODEC_FLAG_GRAY = $2000; ///< only decode/encode grayscale - CODEC_FLAG_EMU_EDGE = $4000; ///< don't draw edges - CODEC_FLAG_PSNR = $8000; ///< error[?] variables will be set during encoding - CODEC_FLAG_TRUNCATED = $00010000; //** input bitstream might be truncated at a random location instead - // of only at frame boundaries */ - CODEC_FLAG_NORMALIZE_AQP = $00020000; ///< normalize adaptive quantization - CODEC_FLAG_INTERLACED_DCT = $00040000; ///< use interlaced dct - CODEC_FLAG_LOW_DELAY = $00080000; ///< force low delay - CODEC_FLAG_ALT_SCAN = $00100000; ///< use alternate scan - CODEC_FLAG_TRELLIS_QUANT = $00200000; ///< use trellis quantization - CODEC_FLAG_GLOBAL_HEADER = $00400000; ///< place global headers in extradata instead of every keyframe - CODEC_FLAG_BITEXACT = $00800000; ///< use only bitexact stuff (except (i)dct) - {* Fx : Flag for h263+ extra options *} - {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 - CODEC_FLAG_H263P_AIC = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this) - {$IFEND} - CODEC_FLAG_AC_PRED = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction - CODEC_FLAG_H263P_UMV = $02000000; ///< Unlimited motion vector - CODEC_FLAG_CBP_RD = $04000000; ///< use rate distortion optimization for cbp - CODEC_FLAG_QP_RD = $08000000; ///< use rate distortion optimization for qp selectioon - CODEC_FLAG_H263P_AIV = $00000008; ///< H263 Alternative inter vlc - CODEC_FLAG_OBMC = $00000001; ///< OBMC - CODEC_FLAG_LOOP_FILTER = $00000800; ///< loop filter - CODEC_FLAG_H263P_SLICE_STRUCT = $10000000; - CODEC_FLAG_INTERLACED_ME = $20000000; ///< interlaced motion estimation - CODEC_FLAG_SVCD_SCAN_OFFSET = $40000000; ///< will reserve space for SVCD scan offset user data - CODEC_FLAG_CLOSED_GOP = $80000000; - CODEC_FLAG2_FAST = $00000001; ///< allow non spec compliant speedup tricks - CODEC_FLAG2_STRICT_GOP = $00000002; ///< strictly enforce GOP size - CODEC_FLAG2_NO_OUTPUT = $00000004; ///< skip bitstream encoding - CODEC_FLAG2_LOCAL_HEADER = $00000008; ///< place global headers at every keyframe instead of in extradata - CODEC_FLAG2_BPYRAMID = $00000010; ///< H.264 allow b-frames to be used as references - CODEC_FLAG2_WPRED = $00000020; ///< H.264 weighted biprediction for b-frames - CODEC_FLAG2_MIXED_REFS = $00000040; ///< H.264 multiple references per partition - CODEC_FLAG2_8X8DCT = $00000080; ///< H.264 high profile 8x8 transform - CODEC_FLAG2_FASTPSKIP = $00000100; ///< H.264 fast pskip - CODEC_FLAG2_AUD = $00000200; ///< H.264 access unit delimiters - CODEC_FLAG2_BRDO = $00000400; ///< b-frame rate-distortion optimization - CODEC_FLAG2_INTRA_VLC = $00000800; ///< use MPEG-2 intra VLC table - CODEC_FLAG2_MEMC_ONLY = $00001000; ///< only do ME/MC (I frames -> ref, P frame -> ME+MC) - CODEC_FLAG2_DROP_FRAME_TIMECODE = $00002000; ///< timecode is in drop frame format. - CODEC_FLAG2_SKIP_RD = $00004000; ///< RD optimal MB level residual skipping - CODEC_FLAG2_CHUNKS = $00008000; ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries. - CODEC_FLAG2_NON_LINEAR_QUANT = $00010000; ///< Use MPEG-2 nonlinear quantizer. - -(* Unsupported options : - * Syntax Arithmetic coding (SAC) - * Reference Picture Selection - * Independant Segment Decoding *) -(* /Fx *) -(* codec capabilities *) - -const - CODEC_CAP_DRAW_HORIZ_BAND = $0001; ///< decoder can use draw_horiz_band callback - (** - * Codec uses get_buffer() for allocating buffers. - * direct rendering method 1 - *) - CODEC_CAP_DR1 = $0002; - (* if 'parse_only' field is true, then avcodec_parse_frame() can be used *) - CODEC_CAP_PARSE_ONLY = $0004; - CODEC_CAP_TRUNCATED = $0008; - (* codec can export data for HW decoding (XvMC) *) - CODEC_CAP_HWACCEL = $0010; - (** - * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data. - * if this is not set, the codec is guranteed to never be feeded with NULL data - *) - CODEC_CAP_DELAY = $0020; - (** - * Codec can be fed a final frame with a smaller size. - * This can be used to prevent truncation of the last audio samples. - *) - CODEC_CAP_SMALL_LAST_FRAME = $0040; - - //the following defines may change, don't expect compatibility if you use them - MB_TYPE_INTRA4x4 = $001; - MB_TYPE_INTRA16x16 = $002; //FIXME h264 specific - MB_TYPE_INTRA_PCM = $004; //FIXME h264 specific - MB_TYPE_16x16 = $008; - MB_TYPE_16x8 = $010; - MB_TYPE_8x16 = $020; - MB_TYPE_8x8 = $040; - MB_TYPE_INTERLACED = $080; - MB_TYPE_DIRECT2 = $100; //FIXME - MB_TYPE_ACPRED = $200; - MB_TYPE_GMC = $400; - MB_TYPE_SKIP = $800; - MB_TYPE_P0L0 = $1000; - MB_TYPE_P1L0 = $2000; - MB_TYPE_P0L1 = $4000; - MB_TYPE_P1L1 = $8000; - MB_TYPE_L0 = (MB_TYPE_P0L0 or MB_TYPE_P1L0); - MB_TYPE_L1 = (MB_TYPE_P0L1 or MB_TYPE_P1L1); - MB_TYPE_L0L1 = (MB_TYPE_L0 or MB_TYPE_L1); - MB_TYPE_QUANT = $0010000; - MB_TYPE_CBP = $0020000; - //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) - -type -(** - * Pan Scan area. - * This specifies the area which should be displayed. - * Note there may be multiple such areas for one frame. - *) - PAVPanScan = ^TAVPanScan; - TAVPanScan = record {24} - (*** id. - * - encoding: set by user. - * - decoding: set by libavcodec. *) - id: integer; - - (*** width and height in 1/16 pel - * - encoding: set by user. - * - decoding: set by libavcodec. *) - width: integer; - height: integer; - - (*** position of the top left corner in 1/16 pel for up to 3 fields/frames. - * - encoding: set by user. - * - decoding: set by libavcodec. *) - position: array [0..2] of array [0..1] of smallint; - end; - -const - FF_QSCALE_TYPE_MPEG1 = 0; - FF_QSCALE_TYPE_MPEG2 = 1; - FF_QSCALE_TYPE_H264 = 2; - - FF_BUFFER_TYPE_INTERNAL = 1; - FF_BUFFER_TYPE_USER = 2; ///< Direct rendering buffers (image is (de)allocated by user) - FF_BUFFER_TYPE_SHARED = 4; ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared - FF_BUFFER_TYPE_COPY = 8; ///< just a (modified) copy of some other buffer, don't dealloc anything. - - - FF_I_TYPE = 1; // Intra - FF_P_TYPE = 2; // Predicted - FF_B_TYPE = 3; // Bi-dir predicted - FF_S_TYPE = 4; // S(GMC)-VOP MPEG4 - FF_SI_TYPE = 5; - FF_SP_TYPE = 6; - - FF_BUFFER_HINTS_VALID = $01; // Buffer hints value is meaningful (if 0 ignore) - FF_BUFFER_HINTS_READABLE = $02; // Codec will read from buffer - FF_BUFFER_HINTS_PRESERVE = $04; // User must not alter buffer content - FF_BUFFER_HINTS_REUSABLE = $08; // Codec will reuse the buffer (update) - -type - {** - * Audio Video Frame. - * New fields can be added to the end of FF_COMMON_FRAME with minor version - * bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. No fields should be added into AVFrame before or after - * FF_COMMON_FRAME! - * sizeof(AVFrame) must not be used outside libav*. - *} - PAVFrame = ^TAVFrame; - TAVFrame = record {200} - (** - * pointer to the picture planes. - * This might be different from the first allocated byte - * - encoding: - * - decoding: - *) - data: array [0..3] of pbyte; - linesize: array [0..3] of integer; - (** - * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer. - * This isn't used by libavcodec unless the default get/release_buffer() is used. - * - encoding: - * - decoding: - *) - base: array [0..3] of pbyte; - (** - * 1 -> keyframe, 0-> not - * - encoding: Set by libavcodec. - * - decoding: Set by libavcodec. - *) - key_frame: integer; - (** - * Picture type of the frame, see ?_TYPE below. - * - encoding: Set by libavcodec. for coded_picture (and set by user for input). - * - decoding: Set by libavcodec. - *) - pict_type: integer; - (** - * presentation timestamp in time_base units (time when frame should be shown to user) - * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed. - * - encoding: MUST be set by user. - * - decoding: Set by libavcodec. - *) - pts: int64; - (**\ - * picture number in bitstream order - * - encoding: set by - * - decoding: Set by libavcodec. - *) - coded_picture_number: integer; - (** - * picture number in display order - * - encoding: set by - * - decoding: Set by libavcodec. - *) - display_picture_number: integer; - (** - * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) - * - encoding: Set by libavcodec. for coded_picture (and set by user for input). - * - decoding: Set by libavcodec. - *) - quality: integer; - (** - * buffer age (1->was last buffer and dint change, 2->..., ...). - * Set to INT_MAX if the buffer has not been used yet. - * - encoding: unused - * - decoding: MUST be set by get_buffer(). - *) - age: integer; - (** - * is this picture used as reference - * - encoding: unused - * - decoding: Set by libavcodec. (before get_buffer() call)). - *) - reference: integer; - (** - * QP table - * - encoding: unused - * - decoding: Set by libavcodec. - *) - qscale_table: PShortint; - (** - * QP store stride - * - encoding: unused - * - decoding: Set by libavcodec. - *) - qstride: integer; - (** - * mbskip_table[mb]>=1 if MB didn't change - * stride= mb_width = (width+15)>>4 - * - encoding: unused - * - decoding: Set by libavcodec. - *) - mbskip_table: pbyte; - (** - * motion vector table - * @code - * example: - * int mv_sample_log2= 4 - motion_subsample_log2; - * int mb_width= (width+15)>>4; - * int mv_stride= (mb_width << mv_sample_log2) + 1; - * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; - * @endcode - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - //int16_t (*motion_val[2])[2]; - motion_val: array [0..1] of pointer; - (** - * macroblock type table - * mb_type_base + mb_width + 2 - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - mb_type: PCardinal; - (** - * log2 of the size of the block which a single vector in motion_val represents: - * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2) - * - encoding: unused - * - decoding: Set by libavcodec. - *) - motion_subsample_log2: byte; - (** - * for some private data of the user - * - encoding: unused - * - decoding: Set by user. - *) - opaque: pointer; - (** - * error - * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR. - * - decoding: unused - *) - error: array [0..3] of uint64; - (** - * type of the buffer (to keep track of who has to deallocate data[*]) - * - encoding: Set by the one who allocates it. - * - decoding: Set by the one who allocates it. - * Note: User allocated (direct rendering) & internal buffers cannot coexist currently. - *) - type_: integer; - (** - * When decoding, this signals how much the picture must be delayed. - * extra_delay = repeat_pict / (2*fps) - * - encoding: unused - * - decoding: Set by libavcodec. - *) - repeat_pict: integer; - (** - * - *) - qscale_type: integer; - (** - * The content of the picture is interlaced. - * - encoding: Set by user. - * - decoding: Set by libavcodec. (default 0) - *) - interlaced_frame: integer; - (** - * If the content is interlaced, is top field displayed first. - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - top_field_first: integer; - (** - * Pan scan. - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - pan_scan: PAVPanScan; - (** - * Tell user application that palette has changed from previous frame. - * - encoding: ??? (no palette-enabled encoder yet) - * - decoding: Set by libavcodec. (default 0). - *) - palette_has_changed: integer; - (** - * codec suggestion on buffer type if != 0 - * - encoding: unused - * - decoding: Set by libavcodec. (before get_buffer() call)). - *) - buffer_hints: integer; - (** - * DCT coefficients - * - encoding: unused - * - decoding: Set by libavcodec. - *) - dct_coeff: PsmallInt; - (** - * motion referece frame index - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - ref_index: array [0..1] of PShortint; - end; - -const - DEFAULT_FRAME_RATE_BASE = 1001000; - - FF_ASPECT_EXTENDED = 15; - - FF_RC_STRATEGY_XVID = 1; - - FF_BUG_AUTODETECT = 1; ///< autodetection - FF_BUG_OLD_MSMPEG4 = 2; - FF_BUG_XVID_ILACE = 4; - FF_BUG_UMP4 = 8; - FF_BUG_NO_PADDING = 16; - FF_BUG_AMV = 32; - FF_BUG_AC_VLC = 0; ///< will be removed, libavcodec can now handle these non compliant files by default - FF_BUG_QPEL_CHROMA = 64; - FF_BUG_STD_QPEL = 128; - FF_BUG_QPEL_CHROMA2 = 256; - FF_BUG_DIRECT_BLOCKSIZE = 512; - FF_BUG_EDGE = 1024; - FF_BUG_HPEL_CHROMA = 2048; - FF_BUG_DC_CLIP = 4096; - FF_BUG_MS = 8192; ///< workaround various bugs in microsofts broken decoders - //FF_BUG_FAKE_SCALABILITY = 16 //Autodetection should work 100%. - - FF_COMPLIANCE_VERY_STRICT = 2; ///< strictly conform to a older more strict version of the spec or reference software - FF_COMPLIANCE_STRICT = 1; ///< strictly conform to all the things in the spec no matter what consequences - FF_COMPLIANCE_NORMAL = 0; - FF_COMPLIANCE_INOFFICIAL = -1; ///< allow inofficial extensions - FF_COMPLIANCE_EXPERIMENTAL = -2; ///< allow non standarized experimental things - - FF_ER_CAREFUL = 1; - FF_ER_COMPLIANT = 2; - FF_ER_AGGRESSIVE = 3; - FF_ER_VERY_AGGRESSIVE = 4; - - FF_DCT_AUTO = 0; - FF_DCT_FASTINT = 1; - FF_DCT_INT = 2; - FF_DCT_MMX = 3; - FF_DCT_MLIB = 4; - FF_DCT_ALTIVEC = 5; - FF_DCT_FAAN = 6; - - FF_IDCT_AUTO = 0; - FF_IDCT_INT = 1; - FF_IDCT_SIMPLE = 2; - FF_IDCT_SIMPLEMMX = 3; - FF_IDCT_LIBMPEG2MMX = 4; - FF_IDCT_PS2 = 5; - FF_IDCT_MLIB = 6; - FF_IDCT_ARM = 7; - FF_IDCT_ALTIVEC = 8; - FF_IDCT_SH4 = 9; - FF_IDCT_SIMPLEARM = 10; - FF_IDCT_H264 = 11; - FF_IDCT_VP3 = 12; - FF_IDCT_IPP = 13; - FF_IDCT_XVIDMMX = 14; - FF_IDCT_CAVS = 15; - FF_IDCT_SIMPLEARMV5TE= 16; - FF_IDCT_SIMPLEARMV6 = 17; - FF_IDCT_SIMPLEVIS = 18; - FF_IDCT_WMV2 = 19; - - FF_EC_GUESS_MVS = 1; - FF_EC_DEBLOCK = 2; - - FF_MM_FORCE = $80000000; (* force usage of selected flags (OR) *) - (* lower 16 bits - CPU features *) - FF_MM_MMX = $0001; ///< standard MMX - FF_MM_3DNOW = $0004; ///< AMD 3DNOW - FF_MM_MMXEXT = $0002; ///< SSE integer functions or AMD MMX ext - FF_MM_SSE = $0008; ///< SSE functions - FF_MM_SSE2 = $0010; ///< PIV SSE2 functions - FF_MM_3DNOWEXT = $0020; ///< AMD 3DNowExt - FF_MM_SSE3 = $0040; ///< Prescott SSE3 functions - FF_MM_SSSE3 = $0080; ///< Conroe SSSE3 functions - FF_MM_IWMMXT = $0100; ///< XScale IWMMXT - - FF_PRED_LEFT = 0; - FF_PRED_PLANE = 1; - FF_PRED_MEDIAN = 2; - - FF_DEBUG_PICT_INFO = 1; - FF_DEBUG_RC = 2; - FF_DEBUG_BITSTREAM = 4; - FF_DEBUG_MB_TYPE = 8; - FF_DEBUG_QP = 16; - FF_DEBUG_MV = 32; - FF_DEBUG_DCT_COEFF = $00000040; - FF_DEBUG_SKIP = $00000080; - FF_DEBUG_STARTCODE = $00000100; - FF_DEBUG_PTS = $00000200; - FF_DEBUG_ER = $00000400; - FF_DEBUG_MMCO = $00000800; - FF_DEBUG_BUGS = $00001000; - FF_DEBUG_VIS_QP = $00002000; - FF_DEBUG_VIS_MB_TYPE = $00004000; - - FF_DEBUG_VIS_MV_P_FOR = $00000001; //visualize forward predicted MVs of P frames - FF_DEBUG_VIS_MV_B_FOR = $00000002; //visualize forward predicted MVs of B frames - FF_DEBUG_VIS_MV_B_BACK = $00000004; //visualize backward predicted MVs of B frames - - FF_CMP_SAD = 0; - FF_CMP_SSE = 1; - FF_CMP_SATD = 2; - FF_CMP_DCT = 3; - FF_CMP_PSNR = 4; - FF_CMP_BIT = 5; - FF_CMP_RD = 6; - FF_CMP_ZERO = 7; - FF_CMP_VSAD = 8; - FF_CMP_VSSE = 9; - FF_CMP_NSSE = 10; - FF_CMP_W53 = 11; - FF_CMP_W97 = 12; - FF_CMP_DCTMAX = 13; - FF_CMP_DCT264 = 14; - FF_CMP_CHROMA = 256; - - FF_DTG_AFD_SAME = 8; - FF_DTG_AFD_4_3 = 9; - FF_DTG_AFD_16_9 = 10; - FF_DTG_AFD_14_9 = 11; - FF_DTG_AFD_4_3_SP_14_9 = 13; - FF_DTG_AFD_16_9_SP_14_9 = 14; - FF_DTG_AFD_SP_4_3 = 15; - - FF_DEFAULT_QUANT_BIAS = 999999; - - FF_LAMBDA_SHIFT = 7; - FF_LAMBDA_SCALE = (1 shl FF_LAMBDA_SHIFT); - FF_QP2LAMBDA = 118; ///< factor to convert from H.263 QP to lambda - FF_LAMBDA_MAX = (256 * 128 - 1); - - FF_QUALITY_SCALE = FF_LAMBDA_SCALE; //FIXME maybe remove - - FF_CODER_TYPE_VLC = 0; - FF_CODER_TYPE_AC = 1; - FF_CODER_TYPE_RAW = 2; - FF_CODER_TYPE_RLE = 3; - FF_CODER_TYPE_DEFLATE = 4; - - SLICE_FLAG_CODED_ORDER = $0001; ///< draw_horiz_band() is called in coded order instead of display - SLICE_FLAG_ALLOW_FIELD = $0002; ///< allow draw_horiz_band() with field slices (MPEG2 field pics) - SLICE_FLAG_ALLOW_PLANE = $0004; ///< allow draw_horiz_band() with 1 component at a time (SVQ1) - - FF_MB_DECISION_SIMPLE = 0; ///< uses mb_cmp - FF_MB_DECISION_BITS = 1; ///< chooses the one which needs the fewest bits - FF_MB_DECISION_RD = 2; ///< rate distoration - - FF_AA_AUTO = 0; - FF_AA_FASTINT = 1; //not implemented yet - FF_AA_INT = 2; - FF_AA_FLOAT = 3; - - FF_PROFILE_UNKNOWN = -99; - FF_PROFILE_AAC_MAIN = 0; - FF_PROFILE_AAC_LOW = 1; - FF_PROFILE_AAC_SSR = 2; - FF_PROFILE_AAC_LTP = 3; - - FF_LEVEL_UNKNOWN = -99; - - X264_PART_I4X4 = $001; (* Analyse i4x4 *) - X264_PART_I8X8 = $002; (* Analyse i8x8 (requires 8x8 transform) *) - X264_PART_P8X8 = $010; (* Analyse p16x8, p8x16 and p8x8 *) - X264_PART_P4X4 = $020; (* Analyse p8x4, p4x8, p4x4 *) - X264_PART_B8X8 = $100; (* Analyse b16x8, b8x16 and b8x8 *) - - FF_COMPRESSION_DEFAULT = -1; - -const - AVPALETTE_SIZE = 1024; - AVPALETTE_COUNT = 256; - -type -(** - * AVPaletteControl - * This structure defines a method for communicating palette changes - * between and demuxer and a decoder. - * - * @deprecated Use AVPacket to send palette changes instead. - * This is totally broken. - *) - PAVPaletteControl = ^TAVPaletteControl; - TAVPaletteControl = record - (* demuxer sets this to 1 to indicate the palette has changed; - * decoder resets to 0 *) - palette_changed: integer; - - (* 4-byte ARGB palette entries, stored in native byte order; note that - * the individual palette components should be on a 8-bit scale; if - * the palette data comes from a IBM VGA native format, the component - * data is probably 6 bits in size and needs to be scaled *) - palette: array [0..AVPALETTE_COUNT - 1] of cardinal; - end; {deprecated;} - -type - PAVClass = ^TAVClass; - PAVCodecContext = ^TAVCodecContext; - - PAVCodec = ^TAVCodec; - - // int[4] - PQuadIntArray = ^TQuadIntArray; - TQuadIntArray = array[0..3] of integer; - // int (*func)(struct AVCodecContext *c2, void *arg) - TExecuteFunc = function(c2: PAVCodecContext; arg: Pointer): integer; cdecl; - - TAVClass = record {12} - class_name: pchar; - (* actually passing a pointer to an AVCodecContext - or AVFormatContext, which begin with an AVClass. - Needed because av_log is in libavcodec and has no visibility - of AVIn/OutputFormat *) - item_name: function (): pchar; cdecl; - option: PAVOption; - end; - - (** - * main external API structure. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVCodecContext) must not be used outside libav*. - *) - TAVCodecContext = record {720} - (** - * information on struct for av_log - * - set by avcodec_alloc_context - *) - av_class: PAVClass; - (** - * the average bitrate - * - encoding: Set by user; unused for constant quantizer encoding. - * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream. - *) - bit_rate: integer; - - (** - * number of bits the bitstream is allowed to diverge from the reference. - * the reference can be CBR (for CBR pass1) or VBR (for pass2) - * - encoding: Set by user; unused for constant quantizer encoding. - * - decoding: unused - *) - bit_rate_tolerance: integer; - - (** - * CODEC_FLAG_*. - * - encoding: Set by user. - * - decoding: Set by user. - *) - flags: integer; - - (** - * Some codecs need additional format info. It is stored here. - * If any muxer uses this then ALL demuxers/parsers AND encoders for the - * specific codec MUST set it correctly otherwise stream copy breaks. - * In general use of this field by muxers is not recommanded. - * - encoding: Set by libavcodec. - * - decoding: Set by libavcodec. (FIXME: Is this OK?) - *) - sub_id: integer; - - (** - * Motion estimation algorithm used for video coding. - * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex), - * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific] - * - encoding: MUST be set by user. - * - decoding: unused - *) - me_method: integer; - - (** - * some codecs need / can use extradata like Huffman tables. - * mjpeg: Huffman tables - * rv10: additional flags - * mpeg4: global headers (they can be in the bitstream or here) - * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger - * than extradata_size to avoid prolems if it is read with the bitstream reader. - * The bytewise contents of extradata must not depend on the architecture or CPU endianness. - * - encoding: Set/allocated/freed by libavcodec. - * - decoding: Set/allocated/freed by user. - *) - extradata: pbyte; - extradata_size: integer; - - (** - * This is the fundamental unit of time (in seconds) in terms - * of which frame timestamps are represented. For fixed-fps content, - * timebase should be 1/framerate and timestamp increments should be - * identically 1. - * - encoding: MUST be set by user. - * - decoding: Set by libavcodec. - *) - time_base: TAVRational; - - (* video only *) - (** - * picture width / height. - * - encoding: MUST be set by user. - * - decoding: Set by libavcodec. - * Note: For compatibility it is possible to set this instead of - * coded_width/height before decoding. - *) - width, height: integer; - - (** - * the number of pictures in a group of pictures, or 0 for intra_only - * - encoding: Set by user. - * - decoding: unused - *) - gop_size: integer; - - (** - * Pixel format, see PIX_FMT_xxx. - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - pix_fmt: TAVPixelFormat; - - (** - * Frame rate emulation. If not zero, the lower layer (i.e. format handler) - * has to read frames at native frame rate. - * - encoding: Set by user. - * - decoding: unused - *) - rate_emu: integer; - - (** - * If non NULL, 'draw_horiz_band' is called by the libavcodec - * decoder to draw a horizontal band. It improves cache usage. Not - * all codecs can do that. You must check the codec capabilities - * beforehand. - * - encoding: unused - * - decoding: Set by user. - * @param height the height of the slice - * @param y the y position of the slice - * @param type 1->top field, 2->bottom field, 3->frame - * @param offset offset into the AVFrame.data from which the slice should be read - *) - draw_horiz_band: procedure (s: PAVCodecContext; - {const} src: PAVFrame; offset: PQuadIntArray; - y: integer; type_: integer; height: integer); cdecl; - - (* audio only *) - sample_rate: integer; ///< samples per second - channels: integer; - - (** - * audio sample format - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - sample_fmt: TSampleFormat; ///< sample format, currenly unused - - (* The following data should not be initialized. *) - (** - * Samples per packet, initialized when calling 'init'. - *) - frame_size: integer; - frame_number: integer; ///< audio or video frame number - real_pict_num: integer; ///< returns the real picture number of previous encoded frame - - (** - * Number of frames the decoded output will be delayed relative to - * the encoded input. - * - encoding: Set by libavcodec. - * - decoding: unused - *) - delay: integer; - - (* - encoding parameters *) - qcompress: single; ///< amount of qscale change between easy & hard scenes (0.0-1.0) - qblur: single; ///< amount of qscale smoothing over time (0.0-1.0) - - (** - * minimum quantizer - * - encoding: Set by user. - * - decoding: unused - *) - qmin: integer; - - (** - * maximum quantizer - * - encoding: Set by user. - * - decoding: unused - *) - qmax: integer; - - (** - * maximum quantizer difference between frames - * - encoding: Set by user. - * - decoding: unused - *) - max_qdiff: integer; - - (** - * maximum number of B-frames between non-B-frames - * Note: The output will be delayed by max_b_frames+1 relative to the input. - * - encoding: Set by user. - * - decoding: unused - *) - max_b_frames: integer; - - (** - * qscale factor between IP and B-frames - * - encoding: Set by user. - * - decoding: unused - *) - b_quant_factor: single; - - (** obsolete FIXME remove *) - rc_strategy: integer; - - b_frame_strategy: integer; - - (** - * hurry up amount - * - encoding: unused - * - decoding: Set by user. 1-> Skip B-frames, 2-> Skip IDCT/dequant too, 5-> Skip everything except header - * @deprecated Deprecated in favor of skip_idct and skip_frame. - *) - hurry_up: integer; - - codec: PAVCodec; - - priv_data: pointer; - - {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 - (* unused, FIXME remove*) - rtp_mode: integer; - {$IFEND} - - rtp_payload_size: integer; (* The size of the RTP payload: the coder will *) - (* do it's best to deliver a chunk with size *) - (* below rtp_payload_size, the chunk will start *) - (* with a start code on some codecs like H.263 *) - (* This doesn't take account of any particular *) - (* headers inside the transmited RTP payload *) - - - (* The RTP callback: This function is called *) - (* every time the encoder has a packet to send *) - (* Depends on the encoder if the data starts *) - (* with a Start Code (it should) H.263 does. *) - (* mb_nb contains the number of macroblocks *) - (* encoded in the RTP payload *) - rtp_callback: procedure (avctx: PAVCodecContext; data: pointer; - size: integer; mb_nb: integer); cdecl; - - (* statistics, used for 2-pass encoding *) - mv_bits: integer; - header_bits: integer; - i_tex_bits: integer; - p_tex_bits: integer; - i_count: integer; - p_count: integer; - skip_count: integer; - misc_bits: integer; - - (** - * number of bits used for the previously encoded frame - * - encoding: Set by libavcodec. - * - decoding: unused - *) - frame_bits: integer; - - (** - * Private data of the user, can be used to carry app specific stuff. - * - encoding: Set by user. - * - decoding: Set by user. - *) - opaque: pointer; - - codec_name: array [0..31] of char; - codec_type: TCodecType; (* see CODEC_TYPE_xxx *) - codec_id: TCodecID; (* see CODEC_ID_xxx *) - - (** - * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). - * This is used to work around some encoder bugs. - * A demuxer should set this to what is stored in the field used to identify the codec. - * If there are multiple such fields in a container then the demuxer should choose the one - * which maximizes the information about the used codec. - * If the codec tag field in a container is larger then 32 bits then the demuxer should - * remap the longer ID to 32 bits with a table or other structure. Alternatively a new - * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated - * first. - * - encoding: Set by user, if not then the default based on codec_id will be used. - * - decoding: Set by user, will be converted to uppercase by libavcodec during init. - *) - codec_tag: cardinal; // ìîæíî array [0..3] of char - òîãäà âèäíî FOURCC - - (** - * Work around bugs in encoders which sometimes cannot be detected automatically. - * - encoding: Set by user - * - decoding: Set by user - *) - workaround_bugs: integer; - - (** - * luma single coefficient elimination threshold - * - encoding: Set by user. - * - decoding: unused - *) - luma_elim_threshold: integer; - - (** - * chroma single coeff elimination threshold - * - encoding: Set by user. - * - decoding: unused - *) - chroma_elim_threshold: integer; - - (** - * strictly follow the standard (MPEG4, ...). - * - encoding: Set by user. - * - decoding: unused - *) - strict_std_compliance: integer; - - (** - * qscale offset between IP and B-frames - * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). - * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). - * - encoding: Set by user. - * - decoding: unused - *) - b_quant_offset: single; - - (** - * Error resilience; higher values will detect more errors but may - * misdetect some more or less valid parts as errors. - * - encoding: unused - * - decoding: Set by user. - *) - error_resilience: integer; - - (** - * Called at the beginning of each frame to get a buffer for it. - * If pic.reference is set then the frame will be read later by libavcodec. - * avcodec_align_dimensions() should be used to find the required width and - * height, as they normally need to be rounded up to the next multiple of 16. - * - encoding: unused - * - decoding: Set by libavcodec., user can override. - *) - get_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl; - - (** - * Called to release buffers which where allocated with get_buffer. - * A released buffer can be reused in get_buffer(). - * pic.data[*] must be set to NULL. - * - encoding: unused - * - decoding: Set by libavcodec., user can override. - *) - release_buffer: procedure (c: PAVCodecContext; pic: PAVFrame); cdecl; - - (** - * If 1 the stream has a 1 frame delay during decoding. - * - encoding: Set by libavcodec. - * - decoding: Set by libavcodec. - *) - has_b_frames: integer; - - (** - * number of bytes per packet if constant and known or 0 - * Used by some WAV based audio codecs. - *) - block_align: integer; - - parse_only: integer; (* - decoding only: if true, only parsing is done - (function avcodec_parse_frame()). The frame - data is returned. Only MPEG codecs support this now. *) - - (** - * 0-> h263 quant 1-> mpeg quant - * - encoding: Set by user. - * - decoding: unused - *) - mpeg_quant: integer; - - (** - * pass1 encoding statistics output buffer - * - encoding: Set by libavcodec. - * - decoding: unused - *) - stats_out: pchar; - - (** - * pass2 encoding statistics input buffer - * Concatenated stuff from stats_out of pass1 should be placed here. - * - encoding: Allocated/set/freed by user. - * - decoding: unused - *) - stats_in: pchar; - - (** - * ratecontrol qmin qmax limiting method - * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax. - * - encoding: Set by user. - * - decoding: unused - *) - rc_qsquish: single; - - rc_qmod_amp: single; - rc_qmod_freq: integer; - - (** - * ratecontrol override, see RcOverride - * - encoding: Allocated/set/freed by user. - * - decoding: unused - *) - rc_override: PRcOverride; - rc_override_count: integer; - - (** - * rate control equation - * - encoding: Set by user - * - decoding: unused - *) - rc_eq: pchar; - - (** - * maximum bitrate - * - encoding: Set by user. - * - decoding: unused - *) - rc_max_rate: integer; - - (** - * minimum bitrate - * - encoding: Set by user. - * - decoding: unused - *) - rc_min_rate: integer; - - (** - * decoder bitstream buffer size - * - encoding: Set by user. - * - decoding: unused - *) - rc_buffer_size: integer; - rc_buffer_aggressivity: single; - - (** - * qscale factor between P and I-frames - * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset). - * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). - * - encoding: Set by user. - * - decoding: unused - *) - i_quant_factor: single; - - (** - * qscale offset between P and I-frames - * - encoding: Set by user. - * - decoding: unused - *) - i_quant_offset: single; - - (** - * initial complexity for pass1 ratecontrol - * - encoding: Set by user. - * - decoding: unused - *) - rc_initial_cplx: single; - - (** - * DCT algorithm, see FF_DCT_* below - * - encoding: Set by user. - * - decoding: unused - *) - dct_algo: integer; - - (** - * luminance masking (0-> disabled) - * - encoding: Set by user. - * - decoding: unused - *) - lumi_masking: single; - - (** - * temporary complexity masking (0-> disabled) - * - encoding: Set by user. - * - decoding: unused - *) - temporal_cplx_masking: single; - - (** - * spatial complexity masking (0-> disabled) - * - encoding: Set by user. - * - decoding: unused - *) - spatial_cplx_masking: single; - - (** - * p block masking (0-> disabled) - * - encoding: Set by user. - * - decoding: unused - *) - p_masking: single; - - (** - * darkness masking (0-> disabled) - * - encoding: Set by user. - * - decoding: unused - *) - dark_masking: single; - - {$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 - (* for binary compatibility *) - unused: integer; - {$IFEND} - - (** - * IDCT algorithm, see FF_IDCT_* below. - * - encoding: Set by user. - * - decoding: Set by user. - *) - idct_algo: integer; - - (** - * slice count - * - encoding: Set by libavcodec. - * - decoding: Set by user (or 0). - *) - slice_count: integer; - - (** - * slice offsets in the frame in bytes - * - encoding: Set/allocated by libavcodec. - * - decoding: Set/allocated by user (or NULL). - *) - slice_offset: Pinteger; - - (** - * error concealment flags - * - encoding: unused - * - decoding: Set by user. - *) - error_concealment: integer; - - (** - * dsp_mask could be add used to disable unwanted CPU features - * CPU features (i.e. MMX, SSE. ...) - * - * With the FORCE flag you may instead enable given CPU features. - * (Dangerous: Usable in case of misdetection, improper usage however will - * result into program crash.) - *) - dsp_mask: cardinal; - - (** - * bits per sample/pixel from the demuxer (needed for huffyuv). - * - encoding: Set by libavcodec. - * - decoding: Set by user. - *) - bits_per_sample: integer; - - (** - * prediction method (needed for huffyuv) - * - encoding: Set by user. - * - decoding: unused - *) - prediction_method: integer; - - (** - * sample aspect ratio (0 if unknown) - * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - sample_aspect_ratio: TAVRational; - - (** - * the picture in the bitstream - * - encoding: Set by libavcodec. - * - decoding: Set by libavcodec. - *) - coded_frame: PAVFrame; - - (** - * debug - * - encoding: Set by user. - * - decoding: Set by user. - *) - debug: integer; - - (** - * debug - * - encoding: Set by user. - * - decoding: Set by user. - *) - debug_mv: integer; - - (** - * error - * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR. - * - decoding: unused - *) - error: array [0..3] of uint64; - - (** - * minimum MB quantizer - * - encoding: unused - * - decoding: unused - *) - mb_qmin: integer; - - (** - * maximum MB quantizer - * - encoding: unused - * - decoding: unused - *) - mb_qmax: integer; - - (** - * motion estimation comparison function - * - encoding: Set by user. - * - decoding: unused - *) - me_cmp: integer; - - (** - * subpixel motion estimation comparison function - * - encoding: Set by user. - * - decoding: unused - *) - me_sub_cmp: integer; - (** - * macroblock comparison function (not supported yet) - * - encoding: Set by user. - * - decoding: unused - *) - mb_cmp: integer; - (** - * interlaced DCT comparison function - * - encoding: Set by user. - * - decoding: unused - *) - ildct_cmp: integer; - - (** - * ME diamond size & shape - * - encoding: Set by user. - * - decoding: unused - *) - dia_size: integer; - - (** - * amount of previous MV predictors (2a+1 x 2a+1 square) - * - encoding: Set by user. - * - decoding: unused - *) - last_predictor_count: integer; - - (** - * prepass for motion estimation - * - encoding: Set by user. - * - decoding: unused - *) - pre_me: integer; - - (** - * motion estimation prepass comparison function - * - encoding: Set by user. - * - decoding: unused - *) - me_pre_cmp: integer; - - (** - * ME prepass diamond size & shape - * - encoding: Set by user. - * - decoding: unused - *) - pre_dia_size: integer; - - (** - * subpel ME quality - * - encoding: Set by user. - * - decoding: unused - *) - me_subpel_quality: integer; - - (** - * callback to negotiate the pixelFormat - * @param fmt is the list of formats which are supported by the codec, - * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. - * The first is always the native one. - * @return the chosen format - * - encoding: unused - * - decoding: Set by user, if not set the native format will be chosen. - *) - get_format: function (s: PAVCodecContext; {const} fmt: PAVPixelFormat): TAVPixelFormat; cdecl; - - (** - * DTG active format information (additional aspect ratio - * information only used in DVB MPEG-2 transport streams) - * 0 if not set. - * - * - encoding: unused - * - decoding: Set by decoder. - *) - dtg_active_format: integer; - - (** - * maximum motion estimation search range in subpel units - * If 0 then no limit. - * - * - encoding: Set by user. - * - decoding: unused - *) - me_range: integer; - - (** - * intra quantizer bias - * - encoding: Set by user. - * - decoding: unused - *) - intra_quant_bias: integer; - - (** - * inter quantizer bias - * - encoding: Set by user. - * - decoding: unused - *) - inter_quant_bias: integer; - - (** - * color table ID - * - encoding: unused - * - decoding: Which clrtable should be used for 8bit RGB images. - * Tables have to be stored somewhere. FIXME - *) - color_table_id: integer; - - (** - * internal_buffer count - * Don't touch, used by libavcodec default_get_buffer(). - *) - internal_buffer_count: integer; - - (** - * internal_buffers - * Don't touch, used by libavcodec default_get_buffer(). - *) - internal_buffer: pointer; - - (** - * Global quality for codecs which cannot change it per frame. - * This should be proportional to MPEG-1/2/4 qscale. - * - encoding: Set by user. - * - decoding: unused - *) - global_quality: integer; - - (** - * coder type - * - encoding: Set by user. - * - decoding: unused - *) - coder_type: integer; - - (** - * context model - * - encoding: Set by user. - * - decoding: unused - *) - context_model: integer; - - { - (** - * - * - encoding: unused - * - decoding: Set by user. - *) - realloc: function (s: PAVCodecContext; buf: Pbyte; buf_size: integer): Pbyte; cdecl; - } - - (** - * slice flags - * - encoding: unused - * - decoding: Set by user. - *) - slice_flags: integer; - - (** - * XVideo Motion Acceleration - * - encoding: forbidden - * - decoding: set by decoder - *) - xvmc_acceleration: integer; - - (** - * macroblock decision mode - * - encoding: Set by user. - * - decoding: unused - *) - mb_decision: integer; - - (** - * custom intra quantization matrix - * - encoding: Set by user, can be NULL. - * - decoding: Set by libavcodec. - *) - intra_matrix: Pword; - - (** - * custom inter quantization matrix - * - encoding: Set by user, can be NULL. - * - decoding: Set by libavcodec. - *) - inter_matrix: Pword; - - (** - * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). - * This is used to work around some encoder bugs. - * - encoding: unused - * - decoding: Set by user, will be converted to uppercase by libavcodec during init. - *) - stream_codec_tag: array [0..3] of char; //cardinal; - - (** - * scene change detection threshold - * 0 is default, larger means fewer detected scene changes. - * - encoding: Set by user. - * - decoding: unused - *) - scenechange_threshold: integer; - - (** - * minimum Lagrange multipler - * - encoding: Set by user. - * - decoding: unused - *) - lmin: integer; - - (** - * maximum Lagrange multipler - * - encoding: Set by user. - * - decoding: unused - *) - lmax: integer; - - (** - * palette control structure - * - encoding: ??? (no palette-enabled encoder yet) - * - decoding: Set by user. - *) - palctrl: PAVPaletteControl; - - (** - * noise reduction strength - * - encoding: Set by user. - * - decoding: unused - *) - noise_reduction: integer; - - (** - * Called at the beginning of a frame to get cr buffer for it. - * Buffer type (size, hints) must be the same. libavcodec won't check it. - * libavcodec will pass previous buffer in pic, function should return - * same buffer or new buffer with old frame "painted" into it. - * If pic.data[0] == NULL must behave like get_buffer(). - * - encoding: unused - * - decoding: Set by libavcodec., user can override - *) - reget_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl; - - (** - * Number of bits which should be loaded into the rc buffer before decoding starts. - * - encoding: Set by user. - * - decoding: unused - *) - rc_initial_buffer_occupancy: integer; - - (** - * - * - encoding: Set by user. - * - decoding: unused - *) - inter_threshold: integer; - - (** - * CODEC_FLAG2_* - * - encoding: Set by user. - * - decoding: Set by user. - *) - flags2: integer; - - (** - * Simulates errors in the bitstream to test error concealment. - * - encoding: Set by user. - * - decoding: unused - *) - error_rate: integer; - - (** - * MP3 antialias algorithm, see FF_AA_* below. - * - encoding: unused - * - decoding: Set by user. - *) - antialias_algo: integer; - - (** - * quantizer noise shaping - * - encoding: Set by user. - * - decoding: unused - *) - quantizer_noise_shaping: integer; - - (** - * thread count - * is used to decide how many independent tasks should be passed to execute() - * - encoding: Set by user. - * - decoding: Set by user. - *) - thread_count: integer; - - (** - * The codec may call this to execute several independent things. - * It will return only after finishing all tasks. - * The user may replace this with some multithreaded implementation, - * the default implementation will execute the parts serially. - * @param count the number of things to execute - * - encoding: Set by libavcodec, user can override. - * - decoding: Set by libavcodec, user can override. - *) - execute: function (c: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: PInteger; count: integer): integer; cdecl; - - (** - * thread opaque - * Can be used by execute() to store some per AVCodecContext stuff. - * - encoding: set by execute() - * - decoding: set by execute() - *) - thread_opaque: pointer; - - (** - * Motion estimation threshold below which no motion estimation is - * performed, but instead the user specified motion vectors are used. - * - * - encoding: Set by user. - * - decoding: unused - *) - me_threshold: integer; - - (** - * Macroblock threshold below which the user specified macroblock types will be used. - * - encoding: Set by user. - * - decoding: unused - *) - mb_threshold: integer; - - (** - * precision of the intra DC coefficient - 8 - * - encoding: Set by user. - * - decoding: unused - *) - intra_dc_precision: integer; - - (** - * noise vs. sse weight for the nsse comparsion function - * - encoding: Set by user. - * - decoding: unused - *) - nsse_weight: integer; - - (** - * Number of macroblock rows at the top which are skipped. - * - encoding: unused - * - decoding: Set by user. - *) - skip_top: integer; - - (** - * Number of macroblock rows at the bottom which are skipped. - * - encoding: unused - * - decoding: Set by user. - *) - skip_bottom: integer; - - (** - * profile - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - profile: integer; - - (** - * level - * - encoding: Set by user. - * - decoding: Set by libavcodec. - *) - level: integer; - - (** - * low resolution decoding, 1-> 1/2 size, 2->1/4 size - * - encoding: unused - * - decoding: Set by user. - *) - lowres: integer; - - (** - * Bitstream width / height, may be different from width/height if lowres - * or other things are used. - * - encoding: unused - * - decoding: Set by user before init if known. Codec should override / dynamically change if needed. - *) - coded_width, coded_height: integer; - - (** - * frame skip threshold - * - encoding: Set by user. - * - decoding: unused - *) - frame_skip_threshold: integer; - - (** - * frame skip factor - * - encoding: Set by user. - * - decoding: unused - *) - frame_skip_factor: integer; - - (** - * frame skip exponent - * - encoding: Set by user. - * - decoding: unused - *) - frame_skip_exp: integer; - - (** - * frame skip comparison function - * - encoding: Set by user. - * - decoding: unused - *) - frame_skip_cmp: integer; - - (** - * Border processing masking, raises the quantizer for mbs on the borders - * of the picture. - * - encoding: Set by user. - * - decoding: unused - *) - border_masking: single; - - (** - * minimum MB lagrange multipler - * - encoding: Set by user. - * - decoding: unused - *) - mb_lmin: integer; - - (** - * maximum MB lagrange multipler - * - encoding: Set by user. - * - decoding: unused - *) - mb_lmax: integer; - - (** - * - * - encoding: Set by user. - * - decoding: unused - *) - me_penalty_compensation: integer; - - (** - * - * - encoding: unused - * - decoding: Set by user. - *) - skip_loop_filter: TAVDiscard; - - (** - * - * - encoding: unused - * - decoding: Set by user. - *) - skip_idct: TAVDiscard; - - (** - * - * - encoding: unused - * - decoding: Set by user. - *) - skip_frame: TAVDiscard; - - (** - * - * - encoding: Set by user. - * - decoding: unused - *) - bidir_refine: integer; - - (** - * - * - encoding: Set by user. - * - decoding: unused - *) - brd_scale: integer; - - (** - * constant rate factor - quality-based VBR - values ~correspond to qps - * - encoding: Set by user. - * - decoding: unused - *) - {$IF LIBAVCODEC_VERSION >= 51021000} // 51.21.0 - crf: single; - {$ELSE} - crf: integer; - {$IFEND} - - (** - * constant quantization parameter rate control method - * - encoding: Set by user. - * - decoding: unused - *) - cqp: integer; - - (** - * minimum GOP size - * - encoding: Set by user. - * - decoding: unused - *) - keyint_min: integer; - - (** - * number of reference frames - * - encoding: Set by user. - * - decoding: unused - *) - refs: integer; - - (** - * chroma qp offset from luma - * - encoding: Set by user. - * - decoding: unused - *) - chromaoffset: integer; - - (** - * Influences how often B-frames are used. - * - encoding: Set by user. - * - decoding: unused - *) - bframebias: integer; - - (** - * trellis RD quantization - * - encoding: Set by user. - * - decoding: unused - *) - trellis: integer; - - (** - * Reduce fluctuations in qp (before curve compression). - * - encoding: Set by user. - * - decoding: unused - *) - complexityblur: single; - - (** - * in-loop deblocking filter alphac0 parameter - * alpha is in the range -6...6 - * - encoding: Set by user. - * - decoding: unused - *) - deblockalpha: integer; - - (** - * in-loop deblocking filter beta parameter - * beta is in the range -6...6 - * - encoding: Set by user. - * - decoding: unused - *) - deblockbeta: integer; - - (** - * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4 - * - encoding: Set by user. - * - decoding: unused - *) - partitions: integer; - - (** - * direct MV prediction mode - 0 (none), 1 (spatial), 2 (temporal) - * - encoding: Set by user. - * - decoding: unused - *) - directpred: integer; - - (** - * Audio cutoff bandwidth (0 means "automatic") - * - encoding: Set by user. - * - decoding: unused - *) - cutoff: integer; - - (** - * Multiplied by qscale for each frame and added to scene_change_score. - * - encoding: Set by user. - * - decoding: unused - *) - scenechange_factor: integer; - - (** - * - * Note: Value depends upon the compare function used for fullpel ME. - * - encoding: Set by user. - * - decoding: unused - *) - mv0_threshold: integer; - - (** - * Adjusts sensitivity of b_frame_strategy 1. - * - encoding: Set by user. - * - decoding: unused - *) - b_sensitivity: integer; - - (** - * - encoding: Set by user. - * - decoding: unused - *) - compression_level: integer; - - (** - * Sets whether to use LPC mode - used by FLAC encoder. - * - encoding: Set by user. - * - decoding: unused - *) - use_lpc: integer; - - (** - * LPC coefficient precision - used by FLAC encoder - * - encoding: Set by user. - * - decoding: unused - *) - lpc_coeff_precision: integer; - - (** - * - encoding: Set by user. - * - decoding: unused - *) - min_prediction_order: integer; - - (** - * - encoding: Set by user. - * - decoding: unused - *) - max_prediction_order: integer; - - (** - * search method for selecting prediction order - * - encoding: Set by user. - * - decoding: unused - *) - prediction_order_method: integer; - - (** - * - encoding: Set by user. - * - decoding: unused - *) - min_partition_order: integer; - - (** - * - encoding: Set by user. - * - decoding: unused - *) - max_partition_order: integer; - - {$IF LIBAVCODEC_VERSION >= 51026000} // 51.26.0 - (** - * GOP timecode frame start number, in non drop frame format - * - encoding: Set by user. - * - decoding: unused - *) - timecode_frame_start: int64; - {$IFEND} - - {$IF LIBAVCODEC_VERSION >= 51042000} // 51.42.0 - (** - * Decoder should decode to this many channels if it can (0 for default) - * - encoding: unused - * - decoding: Set by user. - *) - request_channels: integer; - {$IFEND} - - {$IF LIBAVCODEC_VERSION > 51049000} // > 51.49.0 - (** - * Percentage of dynamic range compression to be applied by the decoder. - * The default value is 1.0, corresponding to full compression. - * - encoding: unused - * - decoding: Set by user. - *) - drc_scale: Single; - {$IFEND} - end; - -(** - * AVCodec. - *) - TAVCodec = record - name: pchar; - type_: TCodecType; - id: TCodecID; - priv_data_size: integer; - init: function (avctx: PAVCodecContext): integer; cdecl; (* typo corretion by the Creative CAT *) - encode: function (avctx: PAVCodecContext; buf: pchar; buf_size: integer; data: pointer): integer; cdecl; - close: function (avctx: PAVCodecContext): integer; cdecl; - decode: function (avctx: PAVCodecContext; outdata: pointer; outdata_size: PInteger; - {const} buf: pchar; buf_size: integer): integer; cdecl; - capabilities: integer; - next: PAVCodec; - flush: procedure (avctx: PAVCodecContext); cdecl; - {const} supported_framerates: PAVRational; ///array of supported framerates, or NULL if any, array is terminated by {0,0} - {const} pix_fmts: PAVPixelFormat; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1 - end; - -(** - * four components are given, that's all. - * the last component is alpha - *) - PAVPicture = ^TAVPicture; - TAVPicture = record - data: array [0..3] of pchar; - linesize: array [0..3] of integer; ///< number of bytes per line - end; - -type - PAVSubtitleRect = ^TAVSubtitleRect; - TAVSubtitleRect = record - x: word; - y: word; - w: word; - h: word; - nb_colors: word; - linesize: integer; - rgba_palette: PCardinal; - bitmap: pchar; - end; - - PAVSubtitle = ^TAVSubtitle; - TAVSubtitle = record {20} - format: word; (* 0 = graphics *) - start_display_time: cardinal; (* relative to packet pts, in ms *) - end_display_time: cardinal; (* relative to packet pts, in ms *) - num_rects: cardinal; - rects: PAVSubtitleRect; - end; - - -(* resample.c *) - - PReSampleContext = pointer; - PAVResampleContext = pointer; - PImgReSampleContext = pointer; - -function audio_resample_init (output_channels: integer; input_channels: integer; - output_rate: integer; input_rate: integer): PReSampleContext; - cdecl; external av__codec; - -function audio_resample (s: PReSampleContext; output: PSmallint; input: PSmallint; nb_samples: integer): integer; - cdecl; external av__codec; - -procedure audio_resample_close (s: PReSampleContext); - cdecl; external av__codec; - - -function av_resample_init (out_rate: integer; in_rate: integer; filter_length: integer; - log2_phase_count: integer; linear: integer; cutoff: double): PAVResampleContext; - cdecl; external av__codec; - -function av_resample (c: PAVResampleContext; dst: PSmallint; src: PSmallint; consumed: PInteger; - src_size: integer; dst_size: integer; update_ctx: integer): integer; - cdecl; external av__codec; - -procedure av_resample_compensate (c: PAVResampleContext; sample_delta: integer; - compensation_distance: integer); - cdecl; external av__codec; - -procedure av_resample_close (c: PAVResampleContext); - cdecl; external av__codec; - - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -(* YUV420 format is assumed ! *) - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -function img_resample_init (output_width: integer; output_height: integer; - input_width: integer; input_height: integer): PImgReSampleContext; - cdecl; external av__codec; deprecated; - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -function img_resample_full_init (owidth: integer; oheight: integer; - iwidth: integer; iheight: integer; - topBand: integer; bottomBand: integer; - leftBand: integer; rightBand: integer; - padtop: integer; padbottom: integer; - padleft: integer; padright: integer): PImgReSampleContext; - cdecl; external av__codec; deprecated; - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -procedure img_resample (s: PImgReSampleContext; output: PAVPicture; {const} input: PAVPicture); - cdecl; external av__codec; deprecated; - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -procedure img_resample_close (s: PImgReSampleContext); - cdecl; external av__codec; deprecated; - -{$IFEND} - -(** - * Allocate memory for a picture. Call avpicture_free to free it. - * - * @param picture the picture to be filled in. - * @param pix_fmt the format of the picture. - * @param width the width of the picture. - * @param height the height of the picture. - * @return Zero if successful, a negative value if not. - *) -function avpicture_alloc (picture: PAVPicture; pix_fmt: TAVPixelFormat; - width: integer; height: integer): integer; - cdecl; external av__codec; - -(** - * Free a picture previously allocated by avpicture_alloc(). - * - * @param picture the AVPicture to be freed - *) -procedure avpicture_free (picture: PAVPicture); - cdecl; external av__codec; - -(** - * Fill in the AVPicture fields. - * The fields of the given AVPicture are filled in by using the 'ptr' address - * which points to the image data buffer. Depending on the specified picture - * format, one or multiple image data pointers and line sizes will be set. - * If a planar format is specified, several pointers will be set pointing to - * the different picture planes and the line sizes of the different planes - * will be stored in the lines_sizes array. - * - * @param picture AVPicture whose fields are to be filled in - * @param ptr Buffer which will contain or contains the actual image data - * @param pix_fmt The format in which the picture data is stored. - * @param width the width of the image in pixels - * @param height the height of the image in pixels - * @return size of the image data in bytes - *) -function avpicture_fill (picture: PAVPicture; ptr: pointer; - pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; - cdecl; external av__codec; - -function avpicture_layout ({const} src: PAVPicture; pix_fmt: TAVPixelFormat; - width: integer; height: integer; - dest: pchar; dest_size: integer): integer; - cdecl; external av__codec; - -(** - * Calculate the size in bytes that a picture of the given width and height - * would occupy if stored in the given picture format. - * - * @param pix_fmt the given picture format - * @param width the width of the image - * @param height the height of the image - * @return Image data size in bytes - *) -function avpicture_get_size (pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; - cdecl; external av__codec; - -procedure avcodec_get_chroma_sub_sample (pix_fmt: TAVPixelFormat; h_shift: Pinteger; v_shift: pinteger); - cdecl; external av__codec; - -function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): pchar; - cdecl; external av__codec; - -procedure avcodec_set_dimensions(s: PAVCodecContext; width: integer; height: integer); - cdecl; external av__codec; - -function avcodec_get_pix_fmt(const name: pchar): TAVPixelFormat; - cdecl; external av__codec; - -function avcodec_pix_fmt_to_codec_tag(p: TAVPixelFormat): cardinal; - cdecl; external av__codec; - -const - FF_LOSS_RESOLUTION = $0001; {**< loss due to resolution change *} - FF_LOSS_DEPTH = $0002; {**< loss due to color depth change *} - FF_LOSS_COLORSPACE = $0004; {**< loss due to color space conversion *} - FF_LOSS_ALPHA = $0008; {**< loss of alpha bits *} - FF_LOSS_COLORQUANT = $0010; {**< loss due to color quantization *} - FF_LOSS_CHROMA = $0020; {**< loss of chroma (e.g. RGB to gray conversion) *} - -(** - * Computes what kind of losses will occur when converting from one specific - * pixel format to another. - * When converting from one pixel format to another, information loss may occur. - * For example, when converting from RGB24 to GRAY, the color information will - * be lost. Similarly, other losses occur when converting from some formats to - * other formats. These losses can involve loss of chroma, but also loss of - * resolution, loss of color depth, loss due to the color space conversion, loss - * of the alpha bits or loss due to color quantization. - * avcodec_get_fix_fmt_loss() informs you about the various types of losses - * which will occur when converting from one pixel format to another. - * - * @param[in] dst_pix_fmt destination pixel format - * @param[in] src_pix_fmt source pixel format - * @param[in] has_alpha Whether the source pixel format alpha channel is used. - * @return Combination of flags informing you what kind of losses will occur. - *) -function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAVPixelFormat; - has_alpha: integer): integer; - cdecl; external av__codec; - -(** - * Finds the best pixel format to convert to given a certain source pixel - * format. When converting from one pixel format to another, information loss - * may occur. For example, when converting from RGB24 to GRAY, the color - * information will be lost. Similarly, other losses occur when converting from - * some formats to other formats. avcodec_find_best_pix_fmt() searches which of - * the given pixel formats should be used to suffer the least amount of loss. - * The pixel formats from which it chooses one, are determined by the - * \p pix_fmt_mask parameter. - * - * @code - * src_pix_fmt = PIX_FMT_YUV420P; - * pix_fmt_mask = (1 << PIX_FMT_YUV422P) || (1 << PIX_FMT_RGB24); - * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss); - * @endcode - * - * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from - * @param[in] src_pix_fmt source pixel format - * @param[in] has_alpha Whether the source pixel format alpha channel is used. - * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. - * @return The best pixel format to convert to or -1 if none was found. - *) -function avcodec_find_best_pix_fmt (pix_fmt_mask: integer; src_pix_fmt: TAVPixelFormat; - has_alpha: integer; loss_ptr: pinteger): integer; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0 -(** - * Print in buf the string corresponding to the pixel format with - * number pix_fmt, or an header if pix_fmt is negative. - * - * @param[in] buf the buffer where to write the string - * @param[in] buf_size the size of buf - * @param[in] pix_fmt the number of the pixel format to print the corresponding info string, or - * a negative value to print the corresponding header. - * Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1. - *) -procedure avcodec_pix_fmt_string (buf: PChar; buf_size: integer; pix_fmt: integer); - cdecl; external av__codec; -{$IFEND} - -const - FF_ALPHA_TRANSP = $0001; {* image has some totally transparent pixels *} - FF_ALPHA_SEMI_TRANSP = $0002; {* image has some transparent pixels *} - -(** - * Tell if an image really has transparent alpha values. - * @return ored mask of FF_ALPHA_xxx constants - *) -function img_get_alpha_info ({const} src: PAVPicture; - pix_fmt: TAVPixelFormat; - width: integer; height: integer): integer; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -(** - * convert among pixel formats - * @deprecated Use the software scaler (swscale) instead. - *) -function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat; - const src: PAVPicture; pix_fmt: TAVPixelFormat; - width: integer; height: integer): integer; - cdecl; external av__codec; deprecated; -{$IFEND} - -(* deinterlace a picture *) -(* deinterlace - if not supported return -1 *) -function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; - cdecl; external av__codec; - -{* external high level API *} - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -{ -var - first_avcodec: PAVCodec; external av__codec; -} -{$IFEND} - -{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0 -function av_codec_next(c: PAVCodec): PAVCodec; - cdecl; external av__codec; -{$IFEND} - -(* returns LIBAVCODEC_VERSION_INT constant *) -function avcodec_version (): cardinal; - cdecl; external av__codec; - -(* returns LIBAVCODEC_BUILD constant *) -function avcodec_build (): cardinal; - cdecl; external av__codec; - -(** - * Initializes libavcodec. - * - * @warning This function \e must be called before any other libavcodec - * function. - *) -procedure avcodec_init (); - cdecl; external av__codec; - -procedure register_avcodec (format: PAVCodec); - cdecl; external av__codec; - -(** - * Finds a registered encoder with a matching codec ID. - * - * @param id CodecID of the requested encoder - * @return An encoder if one was found, NULL otherwise. - *) -function avcodec_find_encoder (id: TCodecID): PAVCodec; - cdecl; external av__codec; - -(** - * Finds a registered encoder with the specified name. - * - * @param name name of the requested encoder - * @return An encoder if one was found, NULL otherwise. - *) -function avcodec_find_encoder_by_name (name: pchar): PAVCodec; - cdecl; external av__codec; - -(** - * Finds a registered decoder with a matching codec ID. - * - * @param id CodecID of the requested decoder - * @return A decoder if one was found, NULL otherwise. - *) -function avcodec_find_decoder(id: TCodecID): PAVCodec; - cdecl; external av__codec; - -(** - * Finds a registered decoder with the specified name. - * - * @param name name of the requested decoder - * @return A decoder if one was found, NULL otherwise. - *) -function avcodec_find_decoder_by_name (name: pchar): PAVCodec; - cdecl; external av__codec; -procedure avcodec_string(buf: pchar; buf_size: integer; enc: PAVCodecContext; encode: integer); - cdecl; external av__codec; - -(** - * Sets the fields of the given AVCodecContext to default values. - * - * @param s The AVCodecContext of which the fields should be set to default values. - *) -procedure avcodec_get_context_defaults (s: PAVCodecContext); - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0 -(** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! - * we WILL change its arguments and name a few times! *) -procedure avcodec_get_context_defaults2(s: PAVCodecContext; ctype: TCodecType); - cdecl; external av__codec; -{$IFEND} - -(** - * Allocates an AVCodecContext and sets its fields to default values. The - * resulting struct can be deallocated by simply calling av_free(). - * - * @return An AVCodecContext filled with default values or NULL on failure. - * @see avcodec_get_context_defaults - *) -function avcodec_alloc_context(): PAVCodecContext; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0 -(** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! - * we WILL change its arguments and name a few times! *) -function avcodec_alloc_context2(ctype: TCodecType): PAVCodecContext; - cdecl; external av__codec; -{$IFEND} - -(** - * Sets the fields of the given AVFrame to default values. - * - * @param pic The AVFrame of which the fields should be set to default values. - *) -procedure avcodec_get_frame_defaults (pic: PAVFrame); - cdecl; external av__codec; - -(** - * Allocates an AVFrame and sets its fields to default values. The resulting - * struct can be deallocated by simply calling av_free(). - * - * @return An AVFrame filled with default values or NULL on failure. - * @see avcodec_get_frame_defaults - *) -function avcodec_alloc_frame(): PAVFrame; - cdecl; external av__codec; - -function avcodec_default_get_buffer (s: PAVCodecContext; pic: PAVFrame): integer; - cdecl; external av__codec; -procedure avcodec_default_release_buffer (s: PAVCodecContext; pic: PAVFrame); - cdecl; external av__codec; -function avcodec_default_reget_buffer (s: PAVCodecContext; pic: PAVFrame): integer; - cdecl; external av__codec; -procedure avcodec_align_dimensions(s: PAVCodecContext; width: Pinteger; height: PInteger); - cdecl; external av__codec; - -(** - * Checks if the given dimension of a picture is valid, meaning that all - * bytes of the picture can be addressed with a signed int. - * - * @param[in] w Width of the picture. - * @param[in] h Height of the picture. - * @return Zero if valid, a negative value if invalid. - *) -function avcodec_check_dimensions (av_log_ctx: pointer; w: cardinal; h: cardinal): integer; - cdecl; external av__codec; -function avcodec_default_get_format(s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat; - cdecl; external av__codec; - -function avcodec_thread_init (s: PAVCodecContext; thread_count: integer): integer; - cdecl; external av__codec; -procedure avcodec_thread_free (s: PAVCodecContext); - cdecl; external av__codec; -function avcodec_thread_execute (s: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: Pinteger; count: integer): integer; - cdecl; external av__codec; -function avcodec_default_execute (s: PAVCodecContext; func: TExecuteFunc; arg: PPointer; ret: Pinteger; count: integer): integer; - cdecl; external av__codec; -//FIXME func typedef - -(** - * Initializes the AVCodecContext to use the given AVCodec. Prior to using this - * function the context has to be allocated. - * - * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), - * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for - * retrieving a codec. - * - * @warning This function is not thread safe! - * - * @code - * avcodec_register_all(); - * codec = avcodec_find_decoder(CODEC_ID_H264); - * if (!codec) - * exit(1); - * - * context = avcodec_alloc_context(); - * - * if (avcodec_open(context, codec) < 0) - * exit(1); - * @endcode - * - * @param avctx The context which will be set up to use the given codec. - * @param codec The codec to use within the context. - * @return zero on success, a negative value on error - * @see avcodec_alloc_context, avcodec_find_decoder, avcodec_find_encoder - *) -function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer; - cdecl; external av__codec; - -(** - * @deprecated Use avcodec_decode_audio2() instead. - *) -function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword; - var frame_size_ptr: integer; - {const} buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51030000} // 51.30.0 -(** - * Decodes an audio frame from \p buf into \p samples. - * The avcodec_decode_audio2() function decodes an audio frame from the input - * buffer \p buf of size \p buf_size. To decode it, it makes use of the - * audio codec which was coupled with \p avctx using avcodec_open(). The - * resulting decoded frame is stored in output buffer \p samples. If no frame - * could be decompressed, \p frame_size_ptr is zero. Otherwise, it is the - * decompressed frame size in \e bytes. - * - * @warning You \e must set \p frame_size_ptr to the allocated size of the - * output buffer before calling avcodec_decode_audio2(). - * - * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than - * the actual read bytes because some optimized bitstream readers read 32 or 64 - * bits at once and could read over the end. - * - * @warning The end of the input buffer \p buf should be set to 0 to ensure that - * no overreading happens for damaged MPEG streams. - * - * @note You might have to align the input buffer \p buf and output buffer \p - * samples. The alignment requirements depend on the CPU: On some CPUs it isn't - * necessary at all, on others it won't work at all if not aligned and on others - * it will work but it will have an impact on performance. In practice, the - * bitstream should have 4 byte alignment at minimum and all sample data should - * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If - * the linesize is not a multiple of 16 then there's no sense in aligning the - * start of the buffer to 16. - * - * @param avctx the codec context - * @param[out] samples the output buffer - * @param[in,out] frame_size_ptr the output buffer size in bytes - * @param[in] buf the input buffer - * @param[in] buf_size the input buffer size in bytes - * @return On error a negative value is returned, otherwise the number of bytes - * used or zero if no frame could be decompressed. - *) -function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PSmallint; - var frame_size_ptr : integer; - {const} buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; -{$IFEND} - -(** - * Decodes a video frame from \p buf into \p picture. - * The avcodec_decode_video() function decodes a video frame from the input - * buffer \p buf of size \p buf_size. To decode it, it makes use of the - * video codec which was coupled with \p avctx using avcodec_open(). The - * resulting decoded frame is stored in \p picture. - * - * @warning The input buffer must be \c FF_INPUT_BUFFER_PADDING_SIZE larger than - * the actual read bytes because some optimized bitstream readers read 32 or 64 - * bits at once and could read over the end. - * - * @warning The end of the input buffer \p buf should be set to 0 to ensure that - * no overreading happens for damaged MPEG streams. - * - * @note You might have to align the input buffer \p buf and output buffer \p - * samples. The alignment requirements depend on the CPU: on some CPUs it isn't - * necessary at all, on others it won't work at all if not aligned and on others - * it will work but it will have an impact on performance. In practice, the - * bitstream should have 4 byte alignment at minimum and all sample data should - * be 16 byte aligned unless the CPU doesn't need it (AltiVec and SSE do). If - * the linesize is not a multiple of 16 then there's no sense in aligning the - * start of the buffer to 16. - * - * @param avctx the codec context - * @param[out] picture The AVFrame in which the decoded video frame will be stored. - * @param[in] buf the input buffer - * @param[in] buf_size the size of the input buffer in bytes - * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. - * @return On error a negative value is returned, otherwise the number of bytes - * used or zero if no frame could be decompressed. - *) -function avcodec_decode_video (avctx: PAVCodecContext; picture: PAVFrame; - var got_picture_ptr: integer; - {const} buf: PByte; buf_size: integer): integer; - cdecl; external av__codec; - -(* Decode a subtitle message. Return -1 if error, otherwise return the - * number of bytes used. If no subtitle could be decompressed, - * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. *) -function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle; - var got_sub_ptr: integer; - {const} buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; -function avcodec_parse_frame (avctx: PAVCodecContext; pdata: PPointer; - data_size_ptr: pinteger; - buf: pchar; buf_size: integer): integer; - cdecl; external av__codec; - -(** - * Encodes an audio frame from \p samples into \p buf. - * The avcodec_encode_audio() function encodes an audio frame from the input - * buffer \p samples. To encode it, it makes use of the audio codec which was - * coupled with \p avctx using avcodec_open(). The resulting encoded frame is - * stored in output buffer \p buf. - * - * @note The output buffer should be at least \c FF_MIN_BUFFER_SIZE bytes large. - * - * @param avctx the codec context - * @param[out] buf the output buffer - * @param[in] buf_size the output buffer size - * @param[in] samples the input buffer containing the samples - * The number of samples read from this buffer is frame_size*channels, - * both of which are defined in \p avctx. - * @return On error a negative value is returned, on success zero or the number - * of bytes used to encode the data read from the input buffer. - *) -function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte; - buf_size: integer; {const} samples: PWord): integer; - cdecl; external av__codec; - -(** - * Encodes a video frame from \p pict into \p buf. - * The avcodec_encode_video() function encodes a video frame from the input - * \p pict. To encode it, it makes use of the video codec which was coupled with - * \p avctx using avcodec_open(). The resulting encoded bytes representing the - * frame are stored in the output buffer \p buf. The input picture should be - * stored using a specific format, namely \c avctx.pix_fmt. - * - * @param avctx the codec context - * @param[out] buf the output buffer for the bitstream of encoded frame - * @param[in] buf_size the size of the output buffer in bytes - * @param[in] pict the input picture to encode - * @return On error a negative value is returned, on success zero or the number - * of bytes used from the input buffer. - *) -function avcodec_encode_video (avctx: PAVCodecContext; buf: PByte; - buf_size: integer; pict: PAVFrame): integer; - cdecl; external av__codec; -function avcodec_encode_subtitle (avctx: PAVCodecContext; buf: pchar; - buf_size: integer; {const} sub: PAVSubtitle): integer; - cdecl; external av__codec; - -function avcodec_close (avctx: PAVCodecContext): integer; - cdecl; external av__codec; - -procedure avcodec_register_all (); - cdecl; external av__codec; - -(** - * Flush buffers, should be called when seeking or when switching to a different stream. - *) -procedure avcodec_flush_buffers (avctx: PAVCodecContext); - cdecl; external av__codec; - -procedure avcodec_default_free_buffers (s: PAVCodecContext); - cdecl; external av__codec; - -(* misc useful functions *) - -(** - * Returns a single letter to describe the given picture type \p pict_type. - * - * @param[in] pict_type the picture type - * @return A single character representing the picture type. - *) -function av_get_pict_type_char (pict_type: integer): char; - cdecl; external av__codec; - -(** - * Returns codec bits per sample. - * - * @param[in] codec_id the codec - * @return Number of bits per sample or zero if unknown for the given codec. - *) -function av_get_bits_per_sample (codec_id: TCodecID): integer; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0 -(** - * Returns sample format bits per sample. - * - * @param[in] sample_fmt the sample format - * @return Number of bits per sample or zero if unknown for the given sample format. - *) -function av_get_bits_per_sample_format(sample_fmt: TSampleFormat): integer; - cdecl; external av__codec; -{$IFEND} - -const - AV_PARSER_PTS_NB = 4; - PARSER_FLAG_COMPLETE_FRAMES = $0001; - -type - {* frame parsing *} - PAVCodecParserContext = ^TAVCodecParserContext; - PAVCodecParser = ^TAVCodecParser; - - TAVCodecParserContext = record - priv_data: pointer; - parser: PAVCodecParser; - frame_offset: int64; (* offset of the current frame *) - cur_offset: int64; (* current offset (incremented by each av_parser_parse()) *) - last_frame_offset: int64; (* offset of the last frame *) - (* video info *) - pict_type: integer; (* XXX: put it back in AVCodecContext *) - repeat_pict: integer; (* XXX: put it back in AVCodecContext *) - pts: int64; (* pts of the current frame *) - dts: int64; (* dts of the current frame *) - - (* private data *) - last_pts: int64; - last_dts: int64; - fetch_timestamp: integer; - - cur_frame_start_index: integer; - cur_frame_offset: array [0..AV_PARSER_PTS_NB - 1] of int64; - cur_frame_pts: array [0..AV_PARSER_PTS_NB - 1] of int64; - cur_frame_dts: array [0..AV_PARSER_PTS_NB - 1] of int64; - - flags: integer; - - {$IF LIBAVCODEC_VERSION >= 51040003} // 51.40.3 - offset: int64; ///< byte offset from starting packet start - last_offset: int64; - {$IFEND} - end; - - TAVCodecParser = record - codec_ids: array [0..4] of integer; (* several codec IDs are permitted *) - priv_data_size: integer; - parser_init: function (s: PAVCodecParserContext): integer; cdecl; - parser_parse: function (s: PAVCodecParserContext; avctx: PAVCodecContext; - {const} poutbuf: PPointer; poutbuf_size: PInteger; - {const} buf: pchar; buf_size: integer): integer; cdecl; - parser_close: procedure (s: PAVCodecParserContext); cdecl; - split: function (avctx: PAVCodecContext; {const} buf: pchar; - buf_size: integer): integer; cdecl; - next: PAVCodecParser; - end; - - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -{ -var - av_first_parser: PAVCodecParser; external av__codec; -} -{$IFEND} - -{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0 -function av_parser_next(c: PAVCodecParser): PAVCodecParser; - cdecl; external av__codec; -{$IFEND} - -procedure av_register_codec_parser (parser: PAVCodecParser); - cdecl; external av__codec; - -function av_parser_init (codec_id: integer): PAVCodecParserContext; - cdecl; external av__codec; - -function av_parser_parse (s: PAVCodecParserContext; - avctx: PAVCodecContext; - poutbuf: PPointer; poutbuf_size: pinteger; - const buf: pchar; buf_size: integer; - pts: int64; dts: int64): integer; - cdecl; external av__codec; -function av_parser_change (s: PAVCodecParserContext; - avctx: PAVCodecContext; - poutbuf: PPointer; poutbuf_size: PInteger; - const buf: pchar; buf_size: integer; keyframe: integer): integer; - cdecl; external av__codec; -procedure av_parser_close (s: PAVCodecParserContext); - cdecl; external av__codec; - -type - PAVBitStreamFilterContext = ^TAVBitStreamFilterContext; - PAVBitStreamFilter = ^TAVBitStreamFilter; - - TAVBitStreamFilterContext = record - priv_data: pointer; - filter: PAVBitStreamFilter; - parser: PAVCodecParserContext; - next: PAVBitStreamFilterContext; - end; - - TAVBitStreamFilter = record - name: pchar; - priv_data_size: integer; - filter: function (bsfc: PAVBitStreamFilterContext; - avctx: PAVCodecContext; args: pchar; - poutbuf: PPointer; poutbuf_size: PInteger; - buf: PByte; buf_size: integer; keyframe: integer): integer; cdecl; - {$IF LIBAVCODEC_VERSION >= 51043000} // 51.43.0 - close: procedure (bsfc: PAVBitStreamFilterContext); - {$IFEND} - next: PAVBitStreamFilter; - end; - -procedure av_register_bitstream_filter (bsf: PAVBitStreamFilter); - cdecl; external av__codec; - -function av_bitstream_filter_init (name: pchar): PAVBitStreamFilterContext; - cdecl; external av__codec; - -function av_bitstream_filter_filter (bsfc: PAVBitStreamFilterContext; - avctx: PAVCodecContext; args: pchar; - poutbuf: PPointer; poutbuf_size: PInteger; - buf: PByte; buf_size: integer; keyframe: integer): integer; - cdecl; external av__codec; -procedure av_bitstream_filter_close (bsf: PAVBitStreamFilterContext); - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51049000} // 51.49.0 -function av_bitstream_filter_next(f: PAVBitStreamFilter): PAVBitStreamFilter; - cdecl; external av__codec; -{$IFEND} - -(* memory *) - -(** - * Reallocates the given block if it is not large enough, otherwise it - * does nothing. - * - * @see av_realloc - *) -procedure av_fast_realloc (ptr: pointer; size: PCardinal; min_size: Cardinal); - cdecl; external av__codec; - -(* for static data only *) - -(** - * Frees all static arrays and resets their pointers to 0. - * Call this function to release all statically allocated tables. - * - * @deprecated. Code which uses av_free_static is broken/misdesigned - * and should correctly use static arrays - * - *) -procedure av_free_static (); - cdecl; external av__codec; deprecated; - -(** - * Allocation of static arrays. - * - * @warning Do not use for normal allocation. - * - * @param[in] size The amount of memory you need in bytes. - * @return block of memory of the requested size - * @deprecated. Code which uses av_mallocz_static is broken/misdesigned - * and should correctly use static arrays - *) -procedure av_mallocz_static(size: cardinal); - cdecl; external av__codec; deprecated; - -{$IF LIBAVCODEC_VERSION < 51035000} // 51.35.0 -procedure av_realloc_static(ptr: pointer; size: Cardinal); - cdecl; external av__codec; -{$IFEND} - -{$IF LIBAVCODEC_VERSION >= 51039000} // 51.39.0 -(** - * Copy image 'src' to 'dst'. - *) -procedure av_picture_copy(dst: PAVPicture; {const} src: PAVPicture; - pix_fmt: integer; width: integer; height: integer); - cdecl; external av__codec; - -(** - * Crop image top and left side. - *) -function av_picture_crop(dst: PAVPicture; {const} src: PAVPicture; - pix_fmt: integer; top_band: integer; left_band: integer): integer; - cdecl; external av__codec; - -(** - * Pad image. - *) -function av_picture_pad(dst: PAVPicture; {const} src: PAVPicture; height: integer; width: integer; pix_fmt: integer; - padtop: integer; padbottom: integer; padleft: integer; padright: integer; color: PInteger): integer; - cdecl; external av__codec; -{$IFEND} - -{$IF LIBAVCODEC_VERSION < 52000000} // 52.0.0 -(** - * @deprecated Use the software scaler (swscale) instead. - *) -procedure img_copy (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; width: integer; height: integer); - cdecl; external av__codec; deprecated; - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -function img_crop (dst: PAVPicture; const src: PAVPicture; - pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer; - cdecl; external av__codec; deprecated; - -(** - * @deprecated Use the software scaler (swscale) instead. - *) -function img_pad (dst: PAVPicture; const src: PAVPicture; height, width: integer; - pix_fmt: TAVPixelFormat; padtop, padbottom, padleft, padright: integer; - color: PInteger): integer; - cdecl; external av__codec; deprecated; -{$IFEND} - -function av_xiphlacing(s: PByte; v: Cardinal): Cardinal; - cdecl; external av__codec; - -{$IF LIBAVCODEC_VERSION >= 51041000} // 51.41.0 -(** - * Parses \p str and put in \p width_ptr and \p height_ptr the detected values. - * - * @return 0 in case of a successful parsing, a negative value otherwise - * @param[in] str the string to parse: it has to be a string in the format - * <width>x<height> or a valid video frame size abbreviation. - * @param[in,out] width_ptr pointer to the variable which will contain the detected - * frame width value - * @param[in,out] height_ptr pointer to the variable which will contain the detected - * frame height value - *) -function av_parse_video_frame_size(width_ptr: PInteger; height_ptr: PInteger; {const} str: PChar): integer; - cdecl; external av__codec; - -(** - * Parses \p str and put in \p frame_rate the detected values. - * - * @return 0 in case of a successful parsing, a negative value otherwise - * @param[in] str the string to parse: it has to be a string in the format - * <frame_rate_nom>/<frame_rate_den>, a float number or a valid video rate abbreviation - * @param[in,out] frame_rate pointer to the AVRational which will contain the detected - * frame rate - *) -function av_parse_video_frame_rate(frame_rate: PAVRational; {const} str: PChar): integer; - cdecl; external av__codec; -{$IFEND} - -(* -{* error handling *} -#if EINVAL > 0 -#define AVERROR(e) (-(e)) {**< Returns a negative error code from a POSIX error code, to return from library functions. *} -#define AVUNERROR(e) (-(e)) {**< Returns a POSIX error code from a library function error return value. *} -#else -{* Some platforms have E* and errno already negated. *} -#define AVERROR(e) (e) -#define AVUNERROR(e) (e) -#endif - -const - AVERROR_UNKNOWN AVERROR(EINVAL) {**< unknown error *} - AVERROR_IO AVERROR(EIO) {**< I/O error *} - AVERROR_NUMEXPECTED AVERROR(EDOM) {**< Number syntax expected in filename. *} - AVERROR_INVALIDDATA AVERROR(EINVAL) {**< invalid data found *} - AVERROR_NOMEM AVERROR(ENOMEM) {**< not enough memory *} - AVERROR_NOFMT AVERROR(EILSEQ) {**< unknown format *} - AVERROR_NOTSUPP AVERROR(ENOSYS) {**< Operation not supported. *} - AVERROR_NOENT AVERROR(ENOENT) {**< No such file or directory. *} - AVERROR_PATCHWELCOME -MKTAG('P','A','W','E') {**< Not yet implemented in FFmpeg. Patches welcome. *} -*) - -const - AVERROR_UNKNOWN =(-1); (* unknown error *) - AVERROR_IO =(-2); (* i/o error *) - AVERROR_NUMEXPECTED =(-3); (* number syntax expected in filename *) - AVERROR_INVALIDDATA =(-4); (* invalid data found *) - AVERROR_NOMEM =(-5); (* not enough memory *) - AVERROR_NOFMT =(-6); (* unknown format *) - AVERROR_NOTSUPP =(-7); (* operation not supported *) - -implementation - -end. |