(* * 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 *) unit avcodec; interface uses windows, avutil, rational, opt; const av__format = 'avformat-50.dll'; LIBAVUTIL_VERSION_INT = ((51 shl 16) + (16 shl 8) + 0); LIBAVUTIL_VERSION = '51.16.0'; LIBAVUTIL_BUILD = LIBAVUTIL_VERSION_INT; AV_NOPTS_VALUE: int64 = $8000000000000000; AV_TIME_BASE = 1000000; type TCodecID = ( CODEC_ID_NONE, CODEC_ID_MPEG1VIDEO, CODEC_ID_MPEG2VIDEO, //* prefered ID for MPEG Video 1 or 2 decoding */ CODEC_ID_MPEG2VIDEO_XVMC, CODEC_ID_H261, CODEC_ID_H263, CODEC_ID_RV10, CODEC_ID_RV20, CODEC_ID_MJPEG, CODEC_ID_MJPEGB, CODEC_ID_LJPEG, CODEC_ID_SP5X, CODEC_ID_JPEGLS, CODEC_ID_MPEG4, CODEC_ID_RAWVIDEO, CODEC_ID_MSMPEG4V1, CODEC_ID_MSMPEG4V2, CODEC_ID_MSMPEG4V3, CODEC_ID_WMV1, CODEC_ID_WMV2, CODEC_ID_H263P, CODEC_ID_H263I, CODEC_ID_FLV1, CODEC_ID_SVQ1, CODEC_ID_SVQ3, CODEC_ID_DVVIDEO, CODEC_ID_HUFFYUV, CODEC_ID_CYUV, CODEC_ID_H264, CODEC_ID_INDEO3, CODEC_ID_VP3, CODEC_ID_THEORA, CODEC_ID_ASV1, CODEC_ID_ASV2, CODEC_ID_FFV1, CODEC_ID_4XM, CODEC_ID_VCR1, CODEC_ID_CLJR, CODEC_ID_MDEC, CODEC_ID_ROQ, CODEC_ID_INTERPLAY_VIDEO, CODEC_ID_XAN_WC3, CODEC_ID_XAN_WC4, CODEC_ID_RPZA, CODEC_ID_CINEPAK, CODEC_ID_WS_VQA, CODEC_ID_MSRLE, CODEC_ID_MSVIDEO1, CODEC_ID_IDCIN, CODEC_ID_8BPS, CODEC_ID_SMC, CODEC_ID_FLIC, CODEC_ID_TRUEMOTION1, CODEC_ID_VMDVIDEO, CODEC_ID_MSZH, CODEC_ID_ZLIB, CODEC_ID_QTRLE, CODEC_ID_SNOW, CODEC_ID_TSCC, CODEC_ID_ULTI, CODEC_ID_QDRAW, CODEC_ID_VIXL, CODEC_ID_QPEG, CODEC_ID_XVID, CODEC_ID_PNG, CODEC_ID_PPM, CODEC_ID_PBM, CODEC_ID_PGM, CODEC_ID_PGMYUV, CODEC_ID_PAM, CODEC_ID_FFVHUFF, CODEC_ID_RV30, CODEC_ID_RV40, CODEC_ID_VC1, CODEC_ID_WMV3, CODEC_ID_LOCO, CODEC_ID_WNV1, CODEC_ID_AASC, CODEC_ID_INDEO2, CODEC_ID_FRAPS, CODEC_ID_TRUEMOTION2, CODEC_ID_BMP, CODEC_ID_CSCD, CODEC_ID_MMVIDEO, CODEC_ID_ZMBV, CODEC_ID_AVS, CODEC_ID_SMACKVIDEO, CODEC_ID_NUV, CODEC_ID_KMVC, CODEC_ID_FLASHSV, CODEC_ID_CAVS, CODEC_ID_JPEG2000, CODEC_ID_VMNC, CODEC_ID_VP5, CODEC_ID_VP6, CODEC_ID_VP6F, //* various pcm "codecs" */ CODEC_ID_PCM_S16LE= $10000, CODEC_ID_PCM_S16BE, CODEC_ID_PCM_U16LE, CODEC_ID_PCM_U16BE, CODEC_ID_PCM_S8, CODEC_ID_PCM_U8, CODEC_ID_PCM_MULAW, CODEC_ID_PCM_ALAW, CODEC_ID_PCM_S32LE, CODEC_ID_PCM_S32BE, CODEC_ID_PCM_U32LE, CODEC_ID_PCM_U32BE, CODEC_ID_PCM_S24LE, CODEC_ID_PCM_S24BE, CODEC_ID_PCM_U24LE, CODEC_ID_PCM_U24BE, CODEC_ID_PCM_S24DAUD, //* various adpcm codecs */ CODEC_ID_ADPCM_IMA_QT= $11000, CODEC_ID_ADPCM_IMA_WAV, CODEC_ID_ADPCM_IMA_DK3, CODEC_ID_ADPCM_IMA_DK4, CODEC_ID_ADPCM_IMA_WS, CODEC_ID_ADPCM_IMA_SMJPEG, CODEC_ID_ADPCM_MS, CODEC_ID_ADPCM_4XM, CODEC_ID_ADPCM_XA, CODEC_ID_ADPCM_ADX, CODEC_ID_ADPCM_EA, CODEC_ID_ADPCM_G726, CODEC_ID_ADPCM_CT, CODEC_ID_ADPCM_SWF, CODEC_ID_ADPCM_YAMAHA, CODEC_ID_ADPCM_SBPRO_4, CODEC_ID_ADPCM_SBPRO_3, CODEC_ID_ADPCM_SBPRO_2, //* AMR */ CODEC_ID_AMR_NB= $12000, CODEC_ID_AMR_WB, //* RealAudio codecs*/ CODEC_ID_RA_144= $13000, CODEC_ID_RA_288, //* various DPCM codecs */ CODEC_ID_ROQ_DPCM= $14000, CODEC_ID_INTERPLAY_DPCM, CODEC_ID_XAN_DPCM, CODEC_ID_SOL_DPCM, CODEC_ID_MP2= $15000, CODEC_ID_MP3, //* prefered ID for MPEG Audio layer 1, 2 or3 decoding */ CODEC_ID_AAC, CODEC_ID_MPEG4AAC, CODEC_ID_AC3, CODEC_ID_DTS, CODEC_ID_VORBIS, CODEC_ID_DVAUDIO, CODEC_ID_WMAV1, CODEC_ID_WMAV2, CODEC_ID_MACE3, CODEC_ID_MACE6, CODEC_ID_VMDAUDIO, CODEC_ID_SONIC, CODEC_ID_SONIC_LS, CODEC_ID_FLAC, CODEC_ID_MP3ADU, CODEC_ID_MP3ON4, CODEC_ID_SHORTEN, CODEC_ID_ALAC, CODEC_ID_WESTWOOD_SND1, CODEC_ID_GSM, CODEC_ID_QDM2, CODEC_ID_COOK, CODEC_ID_TRUESPEECH, CODEC_ID_TTA, CODEC_ID_SMACKAUDIO, CODEC_ID_QCELP, CODEC_ID_WAVPACK, //* subtitle codecs */ CODEC_ID_DVD_SUBTITLE= $17000, CODEC_ID_DVB_SUBTITLE, CODEC_ID_MPEG2TS= $20000 //* _FAKE_ codec to indicate a raw MPEG2 transport // stream (only used by libavformat) */ ); //* CODEC_ID_MP3LAME is absolete */ const CODEC_ID_MP3LAME = CODEC_ID_MP3; AVPALETTE_SIZE = 1024; AVPALETTE_COUNT = 256; type TCodecType = ( CODEC_TYPE_UNKNOWN = -1, CODEC_TYPE_VIDEO, CODEC_TYPE_AUDIO, CODEC_TYPE_DATA, CODEC_TYPE_SUBTITLE ); //* currently unused, may be used if 24/32 bits samples ever supported */ //* all in native endian */ TSampleFormat = ( SAMPLE_FMT_NONE = -1, SAMPLE_FMT_U8, ///< unsigned 8 bits SAMPLE_FMT_S16, ///< signed 16 bits SAMPLE_FMT_S24, ///< signed 24 bits SAMPLE_FMT_S32, ///< signed 32 bits SAMPLE_FMT_FLT ///< float ); const //* in bytes */ AVCODEC_MAX_AUDIO_FRAME_SIZE = 192000; // 1 second of 48khz 32bit audio (** * Required number of additionally allocated bytes at the end of the input bitstream for decoding. * this is mainly needed because some optimized bitstream readers read * 32 or 64 bit at once and could read over the end
* Note, if the first 23 bits of the additional bytes are not 0 then damaged * MPEG bitstreams could cause overread and segfault *) FF_INPUT_BUFFER_PADDING_SIZE = 8; (** * minimum encoding buffer size. * used to avoid some checks during header writing *) FF_MIN_BUFFER_SIZE = 16384; type //* motion estimation type, EPZS by default */ TMotion_Est_ID = ( ME_ZERO = 1, ME_FULL, ME_LOG, ME_PHODS, ME_EPZS, ME_X1, ME_HEX, ME_UMH, ME_ITER ); TAVDiscard = ( //we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames) AVDISCARD_NONE = -16, ///< discard nothing AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi AVDISCARD_NONREF = 8, ///< discard all non reference AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes AVDISCARD_ALL = 48, ///< discard all AVDISCARD_FUCK = $FFFFFF ); PRcOverride = ^TRcOverride; TRcOverride = record {16} start_frame: integer; end_frame: integer; qscale: integer; // if this is 0 then quality_factor will be used instead quality_factor: single; end; const FF_MAX_B_FRAMES = 16; (* encoding support these flags can be passed in AVCodecContext.flags before initing Note: not everything is supported yet. *) CODEC_FLAG_QSCALE = $0002; ///< use fixed qscale CODEC_FLAG_4MV = $0004; ///< 4 MV per MB allowed / Advanced prediction for H263 CODEC_FLAG_QPEL = $0010; ///< use qpel MC CODEC_FLAG_GMC = $0020; ///< use GMC CODEC_FLAG_MV0 = $0040; ///< always try a MB with MV=<0,0> CODEC_FLAG_PART = $0080; ///< use data partitioning //* parent program gurantees that the input for b-frame containing streams is not written to // for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */ CODEC_FLAG_INPUT_PRESERVED = $0100; CODEC_FLAG_PASS1 = $0200; ///< use internal 2pass ratecontrol in first pass mode CODEC_FLAG_PASS2 = $0400; ///< use internal 2pass ratecontrol in second pass mode CODEC_FLAG_EXTERN_HUFF = $1000; ///< use external huffman table (for mjpeg) CODEC_FLAG_GRAY = $2000; ///< only decode/encode grayscale CODEC_FLAG_EMU_EDGE = $4000; ///< don't draw edges CODEC_FLAG_PSNR = $8000; ///< error[?] variables will be set during encoding CODEC_FLAG_TRUNCATED = $00010000; //** input bitstream might be truncated at a random location instead // of only at frame boundaries */ CODEC_FLAG_NORMALIZE_AQP = $00020000; ///< normalize adaptive quantization CODEC_FLAG_INTERLACED_DCT = $00040000; ///< use interlaced dct CODEC_FLAG_LOW_DELAY = $00080000; ///< force low delay CODEC_FLAG_ALT_SCAN = $00100000; ///< use alternate scan CODEC_FLAG_TRELLIS_QUANT = $00200000; ///< use trellis quantization CODEC_FLAG_GLOBAL_HEADER = $00400000; ///< place global headers in extradata instead of every keyframe CODEC_FLAG_BITEXACT = $00800000; ///< use only bitexact stuff (except (i)dct) //* Fx : Flag for h263+ extra options */ CODEC_FLAG_H263P_AIC = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this) CODEC_FLAG_AC_PRED = $01000000; ///< H263 Advanced intra coding / MPEG4 AC prediction CODEC_FLAG_H263P_UMV = $02000000; ///< Unlimited motion vector CODEC_FLAG_CBP_RD = $04000000; ///< use rate distortion optimization for cbp CODEC_FLAG_QP_RD = $08000000; ///< use rate distortion optimization for qp selectioon CODEC_FLAG_H263P_AIV = $00000008; ///< H263 Alternative inter vlc CODEC_FLAG_OBMC = $00000001; ///< OBMC CODEC_FLAG_LOOP_FILTER = $00000800; ///< loop filter CODEC_FLAG_H263P_SLICE_STRUCT = $10000000; CODEC_FLAG_INTERLACED_ME = $20000000; ///< interlaced motion estimation CODEC_FLAG_SVCD_SCAN_OFFSET = $40000000; ///< will reserve space for SVCD scan offset user data CODEC_FLAG_CLOSED_GOP = $80000000; CODEC_FLAG2_FAST = $00000001; ///< allow non spec compliant speedup tricks CODEC_FLAG2_STRICT_GOP = $00000002; ///< strictly enforce GOP size CODEC_FLAG2_NO_OUTPUT = $00000004; ///< skip bitstream encoding CODEC_FLAG2_LOCAL_HEADER = $00000008; ///< place global headers at every keyframe instead of in extradata CODEC_FLAG2_BPYRAMID = $00000010; ///< H.264 allow b-frames to be used as references CODEC_FLAG2_WPRED = $00000020; ///< H.264 weighted biprediction for b-frames CODEC_FLAG2_MIXED_REFS = $00000040; ///< H.264 multiple references per partition CODEC_FLAG2_8X8DCT = $00000080; ///< H.264 high profile 8x8 transform CODEC_FLAG2_FASTPSKIP = $00000100; ///< H.264 fast pskip CODEC_FLAG2_AUD = $00000200; ///< H.264 access unit delimiters CODEC_FLAG2_BRDO = $00000400; ///< b-frame rate-distortion optimization CODEC_FLAG2_INTRA_VLC = $00000800; ///< use MPEG-2 intra VLC table CODEC_FLAG2_MEMC_ONLY = $00001000; ///< only do ME/MC (I frames -> ref, P frame -> ME+MC) (* Unsupported options : * Syntax Arithmetic coding (SAC) * Reference Picture Selection * Independant Segment Decoding */ /* /Fx */ /* codec capabilities *) const CODEC_CAP_DRAW_HORIZ_BAND = $001; ///< decoder can use draw_horiz_band callback (** * Codec uses get_buffer() for allocating buffers. * direct rendering method 1 *) CODEC_CAP_DR1 = $002; (* if 'parse_only' field is true, then avcodec_parse_frame() can be used *) CODEC_CAP_PARSE_ONLY = $004; CODEC_CAP_TRUNCATED = $008; //* codec can export data for HW decoding (XvMC) */ CODEC_CAP_HWACCEL = $010; (** * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data. * if this is not set, the codec is guranteed to never be feeded with NULL data *) CODEC_CAP_DELAY = $0020; (** * Codec can be fed a final frame with a smaller size. * This can be used to prevent truncation of the last audio samples. *) CODEC_CAP_SMALL_LAST_FRAME = $0040; //the following defines may change, don't expect compatibility if you use them MB_TYPE_INTRA4x4 = $001; MB_TYPE_INTRA16x16 = $002; //FIXME h264 specific MB_TYPE_INTRA_PCM = $004; //FIXME h264 specific MB_TYPE_16x16 = $008; MB_TYPE_16x8 = $010; MB_TYPE_8x16 = $020; MB_TYPE_8x8 = $040; MB_TYPE_INTERLACED = $080; MB_TYPE_DIRECT2 = $100; //FIXME MB_TYPE_ACPRED = $200; MB_TYPE_GMC = $400; MB_TYPE_SKIP = $800; MB_TYPE_P0L0 = $1000; MB_TYPE_P1L0 = $2000; MB_TYPE_P0L1 = $4000; MB_TYPE_P1L1 = $8000; MB_TYPE_L0 = (MB_TYPE_P0L0 or MB_TYPE_P1L0); MB_TYPE_L1 = (MB_TYPE_P0L1 or MB_TYPE_P1L1); MB_TYPE_L0L1 = (MB_TYPE_L0 or MB_TYPE_L1); MB_TYPE_QUANT = $0010000; MB_TYPE_CBP = $0020000; //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) type (** * Pan Scan area. * this specifies the area which should be displayed. Note there may be multiple such areas for one frame *) PAVPanScan = ^TAVPanScan; TAVPanScan = record {24} (*** id. * - encoding: set by user. * - decoding: set by lavc *) id: integer; (*** width and height in 1/16 pel * - encoding: set by user. * - decoding: set by lavc *) width: integer; height: integer; (*** position of the top left corner in 1/16 pel for up to 3 fields/frames. * - encoding: set by user. * - decoding: set by lavc *) position: array [0..2] of array [0..1] of smallint; end; const FF_QSCALE_TYPE_MPEG1 = 0; FF_QSCALE_TYPE_MPEG2 = 1; FF_BUFFER_TYPE_INTERNAL = 1; FF_BUFFER_TYPE_USER = 2; ///< Direct rendering buffers (image is (de)allocated by user) FF_BUFFER_TYPE_SHARED = 4; ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared FF_BUFFER_TYPE_COPY = 8; ///< just a (modified) copy of some other buffer, don't dealloc anything FF_I_TYPE = 1; // Intra FF_P_TYPE = 2; // Predicted FF_B_TYPE = 3; // Bi-dir predicted FF_S_TYPE = 4; // S(GMC)-VOP MPEG4 FF_SI_TYPE = 5; FF_SP_TYPE = 6; FF_BUFFER_HINTS_VALID = $01; // Buffer hints value is meaningful (if 0 ignore) FF_BUFFER_HINTS_READABLE = $02; // Codec will read from buffer FF_BUFFER_HINTS_PRESERVE = $04; // User must not alter buffer content FF_BUFFER_HINTS_REUSABLE = $08; // Codec will reuse the buffer (update) type (*** Audio Video Frame. *) PAVFrame = ^TAVFrame; TAVFrame = record {200} (*** pointer to the picture planes. * this might be different from the first allocated byte *) data: array [0..3] of pointer; linesize: array [0..3] of integer; (*** pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer * this isn't used by lavc unless the default get/release_buffer() is used*) base: array [0..3] of pchar; (*** 1 -> keyframe, 0-> not *) key_frame: integer; (*** picture type of the frame, see ?_TYPE below.*) pict_type: integer; (*** presentation timestamp in time_base units (time when frame should be shown to user) * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed*) pts: int64; (*** picture number in bitstream order.*) coded_picture_number: integer; (*** picture number in display order.*) display_picture_number: integer; (*** quality (between 1 (good) and FF_LAMBDA_MAX (bad)) *) quality: integer; (*** buffer age (1->was last buffer and dint change, 2->..., ...).*) age: integer; (*** is this picture used as reference*) reference: integer; (*** QP table*) qscale_table: pchar; (*** QP store stride*) qstride: integer; (*** mbskip_table[mb]>=1 if MB didnt change*) mbskip_table: pchar; (** * Motion vector table. * @code * example: * int mv_sample_log2= 4 - motion_subsample_log2; * int mb_width= (width+15)>>4; * int mv_stride= (mb_width << mv_sample_log2) + 1; * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y]; * @endcode * - encoding: set by user * - decoding: set by lavc *) motion_val: array [0..1] of pointer; (*** Macroblock type table * mb_type_base + mb_width + 2 *) mb_type: PCardinal; (*** log2 of the size of the block which a single vector in motion_val represents: * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)*) motion_subsample_log2: byte; (*** for some private data of the user*) opaque: pointer; (*** error*) error: array [0..3] of int64; (*** type of the buffer (to keep track of who has to dealloc data[*]) * Note: user allocated (direct rendering) & internal buffers can not coexist currently*) _type: integer; (*** when decoding, this signal how much the picture must be delayed. * extra_delay = repeat_pict / (2*fps)*) repeat_pict: integer; qscale_type: Integer; (*** The content of the picture is interlaced.*) interlaced_frame: Integer; (*** if the content is interlaced, is top field displayed first.*) top_field_first: integer; (*** Pan scan.*) pan_scan: PAVPanScan; (*** tell user application that palette has changed from previous frame.*) palette_has_changed: integer; (*** Codec suggestion on buffer type if != 0 * - decoding: set by lavc (before get_buffer() call))*) buffer_hints: integer; (*** DCT coeffitients*) dct_coeff: PSmallInt; (*** Motion referece frame index*) ref_index: array [0..1] of pchar; end; const DEFAULT_FRAME_RATE_BASE = 1001000; FF_BUG_AUTODETECT = 1; ///< autodetection FF_BUG_OLD_MSMPEG4 = 2; FF_BUG_XVID_ILACE = 4; FF_BUG_UMP4 = 8; FF_BUG_NO_PADDING = 16; FF_BUG_AMV = 32; FF_BUG_AC_VLC = 0; ///< will be removed, libavcodec can now handle these non compliant files by default FF_BUG_QPEL_CHROMA = 64; FF_BUG_STD_QPEL = 128; FF_BUG_QPEL_CHROMA2 = 256; FF_BUG_DIRECT_BLOCKSIZE = 512; FF_BUG_EDGE = 1024; FF_BUG_HPEL_CHROMA = 2048; FF_BUG_DC_CLIP = 4096; FF_BUG_MS = 8192; ///< workaround various bugs in microsofts broken decoders FF_COMPLIANCE_VERY_STRICT = 2; ///< strictly conform to a older more strict version of the spec or reference software FF_COMPLIANCE_STRICT = 1; ///< strictly conform to all the things in the spec no matter what consequences FF_COMPLIANCE_NORMAL = 0; FF_COMPLIANCE_INOFFICIAL = -1; ///< allow inofficial extensions FF_COMPLIANCE_EXPERIMENTAL = -2; ///< allow non standarized experimental things FF_ER_CAREFUL = 1; FF_ER_COMPLIANT = 2; FF_ER_AGGRESSIVE = 3; FF_ER_VERY_AGGRESSIVE = 4; FF_DCT_AUTO = 0; FF_DCT_FASTINT = 1; FF_DCT_INT = 2; FF_DCT_MMX = 3; FF_DCT_MLIB = 4; FF_DCT_ALTIVEC = 5; FF_DCT_FAAN = 6; FF_IDCT_AUTO = 0; FF_IDCT_INT = 1; FF_IDCT_SIMPLE = 2; FF_IDCT_SIMPLEMMX = 3; FF_IDCT_LIBMPEG2MMX = 4; FF_IDCT_PS2 = 5; FF_IDCT_MLIB = 6; FF_IDCT_ARM = 7; FF_IDCT_ALTIVEC = 8; FF_IDCT_SH4 = 9; FF_IDCT_SIMPLEARM = 10; FF_IDCT_H264 = 11; FF_IDCT_VP3 = 12; FF_IDCT_IPP = 13; FF_IDCT_XVIDMMX = 14; FF_EC_GUESS_MVS = 1; FF_EC_DEBLOCK = 2; FF_MM_FORCE = $80000000; (* force usage of selected flags (OR) *) (* lower 16 bits - CPU features *) FF_MM_MMX = $0001; (* standard MMX *) FF_MM_3DNOW = $0004; (* AMD 3DNOW *) FF_MM_MMXEXT = $0002; (* SSE integer functions or AMD MMX ext *) FF_MM_SSE = $0008; (* SSE functions *) FF_MM_SSE2 = $0010; (* PIV SSE2 functions *) FF_MM_3DNOWEXT = $0020; (* AMD 3DNowExt *) FF_MM_IWMMXT = $0100; (* XScale IWMMXT *) FF_PRED_LEFT = 0; FF_PRED_PLANE = 1; FF_PRED_MEDIAN = 2; FF_DEBUG_PICT_INFO = 1; FF_DEBUG_RC = 2; FF_DEBUG_BITSTREAM = 4; FF_DEBUG_MB_TYPE = 8; FF_DEBUG_QP = 16; FF_DEBUG_MV = 32; FF_DEBUG_DCT_COEFF = $00000040; FF_DEBUG_SKIP = $00000080; FF_DEBUG_STARTCODE = $00000100; FF_DEBUG_PTS = $00000200; FF_DEBUG_ER = $00000400; FF_DEBUG_MMCO = $00000800; FF_DEBUG_BUGS = $00001000; FF_DEBUG_VIS_QP = $00002000; FF_DEBUG_VIS_MB_TYPE = $00004000; FF_DEBUG_VIS_MV_P_FOR = $00000001; //visualize forward predicted MVs of P frames FF_DEBUG_VIS_MV_B_FOR = $00000002; //visualize forward predicted MVs of B frames FF_DEBUG_VIS_MV_B_BACK = $00000004; //visualize backward predicted MVs of B frames FF_CMP_SAD = 0; FF_CMP_SSE = 1; FF_CMP_SATD = 2; FF_CMP_DCT = 3; FF_CMP_PSNR = 4; FF_CMP_BIT = 5; FF_CMP_RD = 6; FF_CMP_ZERO = 7; FF_CMP_VSAD = 8; FF_CMP_VSSE = 9; FF_CMP_NSSE = 10; FF_CMP_W53 = 11; FF_CMP_W97 = 12; FF_CMP_DCTMAX = 13; FF_CMP_CHROMA = 256; FF_DTG_AFD_SAME = 8; FF_DTG_AFD_4_3 = 9; FF_DTG_AFD_16_9 = 10; FF_DTG_AFD_14_9 = 11; FF_DTG_AFD_4_3_SP_14_9 = 13; FF_DTG_AFD_16_9_SP_14_9 = 14; FF_DTG_AFD_SP_4_3 = 15; FF_DEFAULT_QUANT_BIAS = 999999; FF_LAMBDA_SHIFT = 7; FF_LAMBDA_SCALE = (1 shl FF_LAMBDA_SHIFT); FF_QP2LAMBDA = 118; ///< factor to convert from H.263 QP to lambda FF_LAMBDA_MAX = (256 * 128 - 1); FF_QUALITY_SCALE = FF_LAMBDA_SCALE; //FIXME maybe remove FF_CODER_TYPE_VLC = 0; FF_CODER_TYPE_AC = 1; SLICE_FLAG_CODED_ORDER = $0001; ///< draw_horiz_band() is called in coded order instead of display SLICE_FLAG_ALLOW_FIELD = $0002; ///< allow draw_horiz_band() with field slices (MPEG2 field pics) SLICE_FLAG_ALLOW_PLANE = $0004; ///< allow draw_horiz_band() with 1 component at a time (SVQ1) FF_MB_DECISION_SIMPLE = 0; ///< uses mb_cmp FF_MB_DECISION_BITS = 1; ///< chooses the one which needs the fewest bits FF_MB_DECISION_RD = 2; ///< rate distoration FF_AA_AUTO = 0; FF_AA_FASTINT = 1; //not implemented yet FF_AA_INT = 2; FF_AA_FLOAT = 3; FF_PROFILE_UNKNOWN = -99; FF_LEVEL_UNKNOWN = -99; X264_PART_I4X4 = $001; (* Analyse i4x4 *) X264_PART_I8X8 = $002; (* Analyse i8x8 (requires 8x8 transform) *) X264_PART_P8X8 = $010; (* Analyse p16x8, p8x16 and p8x8 *) X264_PART_P4X4 = $020; (* Analyse p8x4, p4x8, p4x4 *) X264_PART_B8X8 = $100; (* Analyse b16x8, b8x16 and b8x8 *) type PAVCLASS = ^TAVCLASS; PAVCodecContext = ^TAVCodecContext; PAVCodec = ^TAVCodec; PAVPaletteControl = ^TAVPaletteControl; TAVCLASS = record {12} class_name: pchar; (* actually passing a pointer to an AVCodecContext or AVFormatContext, which begin with an AVClass. Needed because av_log is in libavcodec and has no visibility of AVIn/OutputFormat *) item_name: function (): pchar; cdecl; option: PAVOption; end; TAVCodecContext = record {720} (*** Info on struct for av_log * - set by avcodec_alloc_context *) av_class: PAVClass; (*** the average bitrate. * - encoding: set by user. unused for constant quantizer encoding * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream *) bit_rate: integer; (*** number of bits the bitstream is allowed to diverge from the reference. * the reference can be CBR (for CBR pass1) or VBR (for pass2) * - encoding: set by user. unused for constant quantizer encoding * - decoding: unused *) bit_rate_tolerance: integer; (*** CODEC_FLAG_*. * - encoding: set by user. * - decoding: set by user. *) flags: integer; (*** some codecs needs additionnal format info. It is stored here * - encoding: set by user. * - decoding: set by lavc. (FIXME is this ok?) *) sub_id: integer; (** * motion estimation algorithm used for video coding. * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex), * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific] * - encoding: MUST be set by user. * - decoding: unused *) me_method: integer; (** * some codecs need / can use extra-data like huffman tables. * mjpeg: huffman tables * rv10: additional flags * mpeg4: global headers (they can be in the bitstream or here) * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger * then extradata_size to avoid prolems if its read with the bitstream reader * the bytewise contents of extradata must not depend on the architecture or cpu endianness * - encoding: set/allocated/freed by lavc. * - decoding: set/allocated/freed by user. *) extradata: pointer; extradata_size: integer; (** * this is the fundamental unit of time (in seconds) in terms * of which frame timestamps are represented. for fixed-fps content, * timebase should be 1/framerate and timestamp increments should be * identically 1. * - encoding: MUST be set by user * - decoding: set by lavc. *) time_base: TAVRational; (* video only *) (*** picture width / height. * - encoding: MUST be set by user. * - decoding: set by lavc. * Note, for compatibility its possible to set this instead of * coded_width/height before decoding *) width, height: integer; (*** the number of pictures in a group of pitures, or 0 for intra_only. * - encoding: set by user. * - decoding: unused *) gop_size: integer; (*** pixel format, see PIX_FMT_xxx. * - encoding: set by user. * - decoding: set by lavc. *) pix_fmt: TAVPixelFormat; (*** Frame rate emulation. If not zero lower layer (i.e. format handler) * has to read frames at native frame rate. * - encoding: set by user. * - decoding: unused. *) rate_emu: integer; (*** if non NULL, 'draw_horiz_band' is called by the libavcodec * decoder to draw an horizontal band. It improve cache usage. Not * all codecs can do that. You must check the codec capabilities * before * - encoding: unused * - decoding: set by user. * @param height the height of the slice * @param y the y position of the slice * @param type 1->top field, 2->bottom field, 3->frame * @param offset offset into the AVFrame.data from which the slice should be read *) draw_horiz_band: procedure (s: PAVCodecContext; const src: PAVFrame; offset: PInteger; y: integer; _type: integer; height: integer); cdecl; (* audio only *) sample_rate: integer; ///< samples per sec channels: integer; (*** audio sample format. * - encoding: set by user. * - decoding: set by lavc. *) sample_fmt: TSampleFormat; ///< sample format, currenly unused (* the following data should not be initialized *) (*** samples per packet. initialized when calling 'init' *) frame_size: integer; frame_number: integer; ///< audio or video frame number real_pict_num: integer; ///< returns the real picture number of previous encoded frame (*** number of frames the decoded output will be delayed relative to * the encoded input. * - encoding: set by lavc. * - decoding: unused *) delay: integer; (* - encoding parameters *) qcompress: single; ///< amount of qscale change between easy & hard scenes (0.0-1.0) qblur: single; ///< amount of qscale smoothing over time (0.0-1.0) (*** minimum quantizer. * - encoding: set by user. * - decoding: unused *) qmin: integer; (*** maximum quantizer. * - encoding: set by user. * - decoding: unused *) qmax: integer; (*** maximum quantizer difference etween frames. * - encoding: set by user. * - decoding: unused *) max_qdiff: integer; (*** maximum number of b frames between non b frames. * note: the output will be delayed by max_b_frames+1 relative to the input * - encoding: set by user. * - decoding: unused *) max_b_frames: integer; (*** qscale factor between ip and b frames. * - encoding: set by user. * - decoding: unused *) b_quant_factor: single; (** obsolete FIXME remove *) rc_strategy: integer; b_frame_strategy: integer; (*** hurry up amount. * deprecated in favor of skip_idct and skip_frame * - encoding: unused * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header *) hurry_up: integer; codec: PAVCodec; priv_data: pointer; (* unused, FIXME remove*) rtp_mode: integer; rtp_payload_size: integer; (* The size of the RTP payload: the coder will *) (* do it's best to deliver a chunk with size *) (* below rtp_payload_size, the chunk will start *) (* with a start code on some codecs like H.263 *) (* This doesn't take account of any particular *) (* headers inside the transmited RTP payload *) (* The RTP callback: This function is called *) (* every time the encoder has a packet to send *) (* Depends on the encoder if the data starts *) (* with a Start Code (it should) H.263 does. *) (* mb_nb contains the number of macroblocks *) (* encoded in the RTP payload *) rtp_callback: procedure (avctx: PAVCodecContext; data: pointer; size: integer; mb_nb: integer); cdecl; (* statistics, used for 2-pass encoding *) mv_bits: integer; header_bits: integer; i_tex_bits: integer; p_tex_bits: integer; i_count: integer; p_count: integer; skip_count: integer; misc_bits: integer; (*** number of bits used for the previously encoded frame. * - encoding: set by lavc * - decoding: unused *) frame_bits: integer; (*** private data of the user, can be used to carry app specific stuff. * - encoding: set by user * - decoding: set by user *) opaque: pointer; codec_name: array [0..31] of char; codec_type: TCodecType; (* see CODEC_TYPE_xxx *) codec_id: TCodecID; (* see CODEC_ID_xxx *) (*** fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). * this is used to workaround some encoder bugs * - encoding: set by user, if not then the default based on codec_id will be used * - decoding: set by user, will be converted to upper case by lavc during init *) // codec_tag: cardinal; // можно array [0..3] of char - тогда видно FOURCC codec_tag: array [0..3] of char; (*** workaround bugs in encoders which sometimes cannot be detected automatically. * - encoding: set by user * - decoding: set by user *) workaround_bugs: integer; (*** luma single coeff elimination threshold. * - encoding: set by user * - decoding: unused *) luma_elim_threshold: integer; (*** chroma single coeff elimination threshold. * - encoding: set by user * - decoding: unused *) chroma_elim_threshold: integer; (*** strictly follow the std (MPEG4, ...). * - encoding: set by user * - decoding: unused *) strict_std_compliance: integer; (*** qscale offset between ip and b frames. * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset) * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset) * - encoding: set by user. * - decoding: unused *) b_quant_offset: single; (*** error resilience higher values will detect more errors but may missdetect * some more or less valid parts as errors. * - encoding: unused * - decoding: set by user *) error_resilience: integer; (*** called at the beginning of each frame to get a buffer for it. * if pic.reference is set then the frame will be read later by lavc * avcodec_align_dimensions() should be used to find the required width and * height, as they normally need to be rounded up to the next multiple of 16 * - encoding: unused * - decoding: set by lavc, user can override *) get_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl; (*** called to release buffers which where allocated with get_buffer. * a released buffer can be reused in get_buffer() * pic.data[*] must be set to NULL * - encoding: unused * - decoding: set by lavc, user can override *) release_buffer: procedure (c: PAVCodecContext; pic: PAVFrame); cdecl; (*** if 1 the stream has a 1 frame delay during decoding. * - encoding: set by lavc * - decoding: set by lavc *) has_b_frames: integer; (*** number of bytes per packet if constant and known or 0 * used by some WAV based audio codecs *) block_align: integer; parse_only: integer; (* - decoding only: if true, only parsing is done (function avcodec_parse_frame()). The frame data is returned. Only MPEG codecs support this now. *) (*** 0-> h263 quant 1-> mpeg quant. * - encoding: set by user. * - decoding: unused *) mpeg_quant: integer; (*** pass1 encoding statistics output buffer. * - encoding: set by lavc * - decoding: unused *) stats_out: pchar; (*** pass2 encoding statistics input buffer. * concatenated stuff from stats_out of pass1 should be placed here * - encoding: allocated/set/freed by user * - decoding: unused *) stats_in: pchar; (*** ratecontrol qmin qmax limiting method. * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax * - encoding: set by user. * - decoding: unused *) rc_qsquish: single; rc_qmod_amp: single; rc_qmod_freq: integer; (*** ratecontrol override, see RcOverride. * - encoding: allocated/set/freed by user. * - decoding: unused *) rc_override: PRcOverride; rc_override_count: integer; (*** rate control equation. * - encoding: set by user * - decoding: unused *) rc_eq: pchar; (*** maximum bitrate. * - encoding: set by user. * - decoding: unused *) rc_max_rate: integer; (*** minimum bitrate. * - encoding: set by user. * - decoding: unused *) rc_min_rate: integer; (*** decoder bitstream buffer size. * - encoding: set by user. * - decoding: unused *) rc_buffer_size: integer; rc_buffer_aggressivity: single; (*** qscale factor between p and i frames. * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset) * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset) * - encoding: set by user. * - decoding: unused *) i_quant_factor: single; (*** qscale offset between p and i frames. * - encoding: set by user. * - decoding: unused *) i_quant_offset: single; (*** initial complexity for pass1 ratecontrol. * - encoding: set by user. * - decoding: unused *) rc_initial_cplx: single; (*** dct algorithm, see FF_DCT_* below. * - encoding: set by user * - decoding: unused *) dct_algo: integer; (*** luminance masking (0-> disabled). * - encoding: set by user * - decoding: unused *) lumi_masking: single; (*** temporary complexity masking (0-> disabled). * - encoding: set by user * - decoding: unused *) temporal_cplx_masking: single; (*** spatial complexity masking (0-> disabled). * - encoding: set by user * - decoding: unused *) spatial_cplx_masking: single; (** * p block masking (0-> disabled). * - encoding: set by user * - decoding: unused *) p_masking: single; (*** darkness masking (0-> disabled). * - encoding: set by user * - decoding: unused *) dark_masking: single; (* for binary compatibility *) unused: integer; (*** idct algorithm, see FF_IDCT_* below. * - encoding: set by user * - decoding: set by user *) idct_algo: integer; (*** slice count. * - encoding: set by lavc * - decoding: set by user (or 0) *) slice_count: integer; (*** slice offsets in the frame in bytes. * - encoding: set/allocated by lavc * - decoding: set/allocated by user (or NULL) *) slice_offset: PInteger; (*** error concealment flags. * - encoding: unused * - decoding: set by user *) error_concealment: integer; (*** dsp_mask could be add used to disable unwanted CPU features * CPU features (i.e. MMX, SSE. ...) * * with FORCE flag you may instead enable given CPU features * (Dangerous: usable in case of misdetection, improper usage however will * result into program crash) *) dsp_mask: cardinal; (*** bits per sample/pixel from the demuxer (needed for huffyuv). * - encoding: set by lavc * - decoding: set by user *) bits_per_sample: integer; (*** prediction method (needed for huffyuv). * - encoding: set by user * - decoding: unused *) prediction_method: integer; (*** sample aspect ratio (0 if unknown). * numerator and denominator must be relative prime and smaller then 256 for some video standards * - encoding: set by user. * - decoding: set by lavc. *) sample_aspect_ratio: TAVRational; (*** the picture in the bitstream. * - encoding: set by lavc * - decoding: set by lavc *) coded_frame: PAVFrame; (*** debug. * - encoding: set by user. * - decoding: set by user. *) debug: integer; (*** debug. * - encoding: set by user. * - decoding: set by user. *) debug_mv: integer; (** error. * - encoding: set by lavc if flags&CODEC_FLAG_PSNR * - decoding: unused *) error: array [0..3] of int64; (*** minimum MB quantizer. * - encoding: unused * - decoding: unused *) mb_qmin: integer; (*** maximum MB quantizer. * - encoding: unused * - decoding: unused *) mb_qmax: integer; (*** motion estimation compare function. * - encoding: set by user. * - decoding: unused *) me_cmp: integer; (*** subpixel motion estimation compare function. * - encoding: set by user. * - decoding: unused *) me_sub_cmp: integer; (*** macroblock compare function (not supported yet). * - encoding: set by user. * - decoding: unused *) mb_cmp: integer; (*** interlaced dct compare function * - encoding: set by user. * - decoding: unused *) ildct_cmp: integer; (*** ME diamond size & shape. * - encoding: set by user. * - decoding: unused *) dia_size: integer; (*** amount of previous MV predictors (2a+1 x 2a+1 square). * - encoding: set by user. * - decoding: unused *) last_predictor_count: integer; (*** pre pass for motion estimation. * - encoding: set by user. * - decoding: unused *) pre_me: integer; (*** motion estimation pre pass compare function. * - encoding: set by user. * - decoding: unused *) me_pre_cmp: integer; (*** ME pre pass diamond size & shape. * - encoding: set by user. * - decoding: unused *) pre_dia_size: integer; (*** subpel ME quality. * - encoding: set by user. * - decoding: unused *) me_subpel_quality: integer; (*** callback to negotiate the pixelFormat. * @param fmt is the list of formats which are supported by the codec, * its terminated by -1 as 0 is a valid format, the formats are ordered by quality * the first is allways the native one * @return the choosen format * - encoding: unused * - decoding: set by user, if not set then the native format will always be choosen *) get_format: function (s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat; cdecl; (*** DTG active format information (additionnal aspect ratio * information only used in DVB MPEG2 transport streams). 0 if * not set. * - encoding: unused. * - decoding: set by decoder *) dtg_active_format: integer; (*** Maximum motion estimation search range in subpel units. * if 0 then no limit * - encoding: set by user. * - decoding: unused. *) me_range: integer; (*** intra quantizer bias. * - encoding: set by user. * - decoding: unused *) intra_quant_bias: integer; (*** inter quantizer bias. * - encoding: set by user. * - decoding: unused *) inter_quant_bias: integer; (*** color table ID. * - encoding: unused. * - decoding: which clrtable should be used for 8bit RGB images * table have to be stored somewhere FIXME *) color_table_id: integer; (*** internal_buffer count. * Don't touch, used by lavc default_get_buffer() *) internal_buffer_count: integer; (*** internal_buffers. * Don't touch, used by lavc default_get_buffer() *) internal_buffer: pointer; (*** global quality for codecs which cannot change it per frame. * this should be proportional to MPEG1/2/4 qscale. * - encoding: set by user. * - decoding: unused *) global_quality: integer; (*** coder type * - encoding: set by user. * - decoding: unused *) coder_type: integer; (*** context model * - encoding: set by user. * - decoding: unused *) context_model: integer; (*** slice flags * - encoding: unused * - decoding: set by user. *) slice_flags: integer; (*** XVideo Motion Acceleration * - encoding: forbidden * - decoding: set by decoder *) xvmc_acceleration: integer; (*** macroblock decision mode * - encoding: set by user. * - decoding: unused *) mb_decision: integer; (*** custom intra quantization matrix * - encoding: set by user, can be NULL * - decoding: set by lavc *) intra_matrix: Pword; (*** custom inter quantization matrix * - encoding: set by user, can be NULL * - decoding: set by lavc *) inter_matrix: Pword; (*** fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). * this is used to workaround some encoder bugs * - encoding: unused * - decoding: set by user, will be converted to upper case by lavc during init *) stream_codec_tag: array [0..3] of char; //cardinal; (*** scene change detection threshold. * 0 is default, larger means fewer detected scene changes * - encoding: set by user. * - decoding: unused *) scenechange_threshold: integer; (*** minimum lagrange multipler * - encoding: set by user. * - decoding: unused *) lmin: integer; (*** maximum lagrange multipler * - encoding: set by user. * - decoding: unused *) lmax: integer; (*** Palette control structure * - encoding: ??? (no palette-enabled encoder yet) * - decoding: set by user. *) palctrl: PAVPaletteControl; (*** noise reduction strength * - encoding: set by user. * - decoding: unused *) noise_reduction: integer; (*** called at the beginning of a frame to get cr buffer for it. * buffer type (size, hints) must be the same. lavc won't check it. * lavc will pass previous buffer in pic, function should return * same buffer or new buffer with old frame "painted" into it. * if pic.data[0] == NULL must behave like get_buffer(). * - encoding: unused * - decoding: set by lavc, user can override *) reget_buffer: function (c: PAVCodecContext; pic: PAVFrame): integer; cdecl; (*** number of bits which should be loaded into the rc buffer before decoding starts * - encoding: set by user. * - decoding: unused *) rc_initial_buffer_occupancy: integer; inter_threshold: integer; (*** CODEC_FLAG2_*. * - encoding: set by user. * - decoding: set by user. *) flags2: integer; (*** simulates errors in the bitstream to test error concealment. * - encoding: set by user. * - decoding: unused. *) error_rate: integer; (*** MP3 antialias algorithm, see FF_AA_* below. * - encoding: unused * - decoding: set by user *) antialias_algo: integer; (*** Quantizer noise shaping. * - encoding: set by user * - decoding: unused *) quantizer_noise_shaping: integer; (*** Thread count. * is used to decide how many independant tasks should be passed to execute() * - encoding: set by user * - decoding: set by user *) thread_count: integer; (*** the codec may call this to execute several independant things. it will return only after * finishing all tasks, the user may replace this with some multithreaded implementation, the * default implementation will execute the parts serially * @param count the number of things to execute * - encoding: set by lavc, user can override * - decoding: set by lavc, user can override *) execute: function (c: PAVCodecContext; func: pointer; arg: PPointer; ret: PInteger; count: integer): integer; cdecl; (*** Thread opaque. * can be used by execute() to store some per AVCodecContext stuff. * - encoding: set by execute() * - decoding: set by execute() *) thread_opaque: pointer; (*** Motion estimation threshold. under which no motion estimation is * performed, but instead the user specified motion vectors are used * - encoding: set by user * - decoding: unused *) me_threshold: integer; (*** Macroblock threshold. under which the user specified macroblock types will be used * - encoding: set by user * - decoding: unused *) mb_threshold: integer; (*** precision of the intra dc coefficient - 8. * - encoding: set by user * - decoding: unused *) intra_dc_precision: integer; (*** noise vs. sse weight for the nsse comparsion function. * - encoding: set by user * - decoding: unused *) nsse_weight: integer; (*** number of macroblock rows at the top which are skipped. * - encoding: unused * - decoding: set by user *) skip_top: integer; (*** number of macroblock rows at the bottom which are skipped. * - encoding: unused * - decoding: set by user *) skip_bottom: integer; (*** profile * - encoding: set by user * - decoding: set by lavc *) profile: integer; (*** level * - encoding: set by user * - decoding: set by lavc *) level: integer; (*** low resolution decoding. 1-> 1/2 size, 2->1/4 size * - encoding: unused * - decoding: set by user *) lowres: integer; (*** bitsream width / height. may be different from width/height if lowres * or other things are used * - encoding: unused * - decoding: set by user before init if known, codec should override / dynamically change if needed *) coded_width, coded_height: integer; (*** frame skip threshold * - encoding: set by user * - decoding: unused *) frame_skip_threshold: integer; (*** frame skip factor * - encoding: set by user * - decoding: unused *) frame_skip_factor: integer; (*** frame skip exponent * - encoding: set by user * - decoding: unused *) frame_skip_exp: integer; (*** frame skip comparission function * - encoding: set by user. * - decoding: unused *) frame_skip_cmp: integer; (*** border processing masking. raises the quantizer for mbs on the borders * of the picture. * - encoding: set by user * - decoding: unused *) border_masking: single; (*** minimum MB lagrange multipler. * - encoding: set by user. * - decoding: unused *) mb_lmin: integer; (*** maximum MB lagrange multipler. * - encoding: set by user. * - decoding: unused *) mb_lmax: integer; (*** * - encoding: set by user. * - decoding: unused *) me_penalty_compensation: integer; (*** * - encoding: unused * - decoding: set by user. *) skip_loop_filter: TAVDiscard; (** * * - encoding: unused * - decoding: set by user. *) skip_idct: TAVDiscard; (** * * - encoding: unused * - decoding: set by user. *) skip_frame: TAVDiscard; (** * * - encoding: set by user. * - decoding: unused *) bidir_refine: integer; (** * * - encoding: set by user. * - decoding: unused *) brd_scale: integer; (** * constant rate factor - quality-based VBR - values ~correspond to qps * - encoding: set by user. * - decoding: unused *) crf: integer; (** * constant quantization parameter rate control method * - encoding: set by user. * - decoding: unused *) cqp: integer; (** * minimum gop size * - encoding: set by user. * - decoding: unused *) keyint_min: integer; (** * number of reference frames * - encoding: set by user. * - decoding: unused *) refs: integer; (** * chroma qp offset from luma * - encoding: set by user. * - decoding: unused *) chromaoffset: integer; (** * influences how often b-frames are used * - encoding: set by user. * - decoding: unused *) bframebias: integer; (** * trellis RD quantization * - encoding: set by user. * - decoding: unused *) trellis: integer; (** * reduce fluctuations in qp (before curve compression) * - encoding: set by user. * - decoding: unused *) complexityblur: single; (** * in-loop deblocking filter alphac0 parameter * alpha is in the range -6...6 * - encoding: set by user. * - decoding: unused *) deblockalpha: integer; (** * in-loop deblocking filter beta parameter * beta is in the range -6...6 * - encoding: set by user. * - decoding: unused *) deblockbeta: integer; (** * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4 * - encoding: set by user. * - decoding: unused *) partitions: integer; (** * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal) * - encoding: set by user. * - decoding: unused *) directpred: integer; (** * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC * - encoding: set by user. * - decoding: unused *) cutoff: integer; (** * multiplied by qscale for each frame and added to scene_change_score * - encoding: set by user. * - decoding: unused *) scenechange_factor: integer; (** * * note: value depends upon the compare functin used for fullpel ME * - encoding: set by user. * - decoding: unused *) mv0_threshold: integer; (** * adjusts sensitivity of b_frame_strategy 1 * - encoding: set by user. * - decoding: unused *) b_sensitivity: integer; (** * - encoding: set by user. * - decoding: unused *) compression_level: integer; (** * sets whether to use LPC mode - used by FLAC encoder * - encoding: set by user. * - decoding: unused. *) use_lpc: integer; (** * LPC coefficient precision - used by FLAC encoder * - encoding: set by user. * - decoding: unused. *) lpc_coeff_precision: integer; (** * - encoding: set by user. * - decoding: unused. *) min_prediction_order: integer; (** * - encoding: set by user. * - decoding: unused. *) max_prediction_order: integer; (** * search method for selecting prediction order * - encoding: set by user. * - decoding: unused. *) prediction_order_method: integer; (** * - encoding: set by user. * - decoding: unused. *) min_partition_order: integer; (** * - encoding: set by user. * - decoding: unused. *) max_partition_order: integer; end; (** * AVCodec. *) TAVCodec = record name: pchar; _type: TCodecType; id: TCodecID; priv_data_size: integer; init: function (avctx: pAVCodecContext): integer; cdecl; encode: function (avctx: PAVCodecContext; buf: pchar; buf_size: integer; data: pointer): integer; cdecl; close: function (avctx: PAVCodecContext): integer; cdecl; decode: function (avctx: PAVCodecContext; outdata: pointer; outdata_size: PInteger; buf: pchar; buf_size: integer): integer; cdecl; capabilities: integer; // todo: check this -> // void *dummy; // FIXME remove next time we break binary compatibility next: PAVCodec; flush: procedure (avctx: PAVCodecContext); cdecl; supported_framerates: PAVRational; ///array of supported framerates, or NULL if any, array is terminated by {0,0} pix_fmts: PAVPixelFormat; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1 end; (** * four components are given, that's all. * the last component is alpha *) PAVPicture = ^TAVPicture; TAVPicture = record data: array [0..3] of pchar; linesize: array [0..3] of integer; ///< number of bytes per line end; (** * AVPaletteControl * This structure defines a method for communicating palette changes * between and demuxer and a decoder. * this is totally broken, palette changes should be sent as AVPackets *) TAVPaletteControl = record (* demuxer sets this to 1 to indicate the palette has changed; * decoder resets to 0 *) palette_changed: integer; (* 4-byte ARGB palette entries, stored in native byte order; note that * the individual palette components should be on a 8-bit scale; if * the palette data comes from a IBM VGA native format, the component * data is probably 6 bits in size and needs to be scaled *) palette: array [0..AVPALETTE_COUNT - 1] of cardinal; end; PAVSubtitleRect = ^TAVSubtitleRect; TAVSubtitleRect = record x: word; y: word; w: word; h: word; nb_colors: word; linesize: integer; rgba_palette: PCardinal; bitmap: pchar; end; PAVSubtitle = ^TAVSubtitle; TAVSubtitle = record {20} format: word; (* 0 = graphics *) start_display_time: cardinal; (* relative to packet pts, in ms *) end_display_time: cardinal; (* relative to packet pts, in ms *) num_rects: cardinal; rects: PAVSubtitleRect; end; (* resample.c *) PReSampleContext = pointer; PAVResampleContext = pointer; PImgReSampleContext = pointer; function audio_resample_init (output_channels: integer; input_channels: integer; output_rate: integer; input_rate: integer): PReSampleContext; cdecl; external av__codec; function audio_resample (s: PReSampleContext; output: PWord; input: PWord; nb_samples: integer): integer; cdecl; external av__codec; procedure audio_resample_close (s: PReSampleContext); cdecl; external av__codec; function av_resample_init (out_rate: integer; in_rate: integer; filter_length: integer; log2_phase_count: integer; linear: integer; cutoff: double): PAVResampleContext; cdecl; external av__codec; function av_resample (c: PAVResampleContext; dst: PWord; src: PWord; consumed: PInteger; src_size: integer; dst_size: integer; update_ctx: integer): integer; cdecl; external av__codec; procedure av_resample_compensate (c: PAVResampleContext; sample_delta: integer; compensation_distance: integer); cdecl; external av__codec; procedure av_resample_close (c: PAVResampleContext); cdecl; external av__codec; (* YUV420 format is assumed ! *) function img_resample_init (output_width: integer; output_height: integer; input_width: integer; input_height: integer): PImgReSampleContext; cdecl; external av__codec; function img_resample_full_init (owidth: integer; oheight: integer; iwidth: integer; iheight: integer; topBand: integer; bottomBand: integer; leftBand: integer; rightBand: integer; padtop: integer; padbottom: integer; padleft: integer; padright: integer): PImgReSampleContext; cdecl; external av__codec; procedure img_resample (s: PImgReSampleContext; output: PAVPicture; const input: PAVPicture); cdecl; external av__codec; procedure img_resample_close (s: PImgReSampleContext); cdecl; external av__codec; (** * Allocate memory for a picture. Call avpicture_free to free it. * * @param picture the picture to be filled in. * @param pix_fmt the format of the picture. * @param width the width of the picture. * @param height the height of the picture. * @return 0 if successful, -1 if not. *) function avpicture_alloc (picture: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; (* Free a picture previously allocated by avpicture_alloc. *) procedure avpicture_free (picture: PAVPicture); cdecl; external av__codec; function avpicture_fill (picture: PAVPicture; ptr: pointer; pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; function avpicture_layout (const src: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer; dest: pchar; dest_size: integer): integer; cdecl; external av__codec; function avpicture_get_size (pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; procedure avcodec_get_chroma_sub_sample (pix_fmt: TAVPixelFormat; h_shift: Pinteger; v_shift: pinteger); cdecl; external av__codec; function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): pchar; cdecl; external av__codec; procedure avcodec_set_dimensions(s: PAVCodecContext; width: integer; height: integer); cdecl; external av__codec; function avcodec_get_pix_fmt(const name: pchar): TAVPixelFormat; cdecl; external av__codec; function avcodec_pix_fmt_to_codec_tag(p: TAVPixelFormat): cardinal; cdecl; external av__codec; function avcodec_get_pix_fmt_loss (dst_pix_fmt: TAVPixelFormat; src_pix_fmt: TAVPixelFormat; has_alpha: integer): integer; cdecl; external av__codec; function avcodec_find_best_pix_fmt (pix_fmt_mask: integer; src_pix_fmt: TAVPixelFormat; has_alpha: integer; loss_ptr: pinteger): integer; cdecl; external av__codec; function img_get_alpha_info (const src: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; (* convert among pixel formats *) function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat; const src: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; (* deinterlace a picture *) function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer): integer; cdecl; external av__codec; (* returns LIBAVCODEC_VERSION_INT constant *) function avcodec_version (): cardinal; cdecl; external av__codec; (* returns LIBAVCODEC_BUILD constant *) function avcodec_build (): cardinal; cdecl; external av__codec; procedure avcodec_init (); cdecl; external av__codec; procedure register_avcodec (format: PAVCodec); cdecl; external av__codec; function avcodec_find_encoder (id: TCodecID): PAVCodec; cdecl; external av__codec; function avcodec_find_encoder_by_name (name: pchar): PAVCodec; cdecl; external av__codec; function avcodec_find_decoder(id: TCodecID): PAVCodec; cdecl; external av__codec; function avcodec_find_decoder_by_name (name: pchar): PAVCodec; cdecl; external av__codec; procedure avcodec_string(buf: pchar; buf_size: integer; enc: PAVCodecContext; encode: integer); cdecl; external av__codec; procedure avcodec_get_context_defaults (s: PAVCodecContext); cdecl; external av__codec; function avcodec_alloc_context (): PAVCodecContext; cdecl; external av__codec; procedure avcodec_get_frame_defaults (pic: PAVFrame); cdecl; external av__codec; function avcodec_alloc_frame (): PAVFrame; cdecl; external av__codec; function avcodec_default_get_buffer (s: PAVCodecContext; pic: PAVFrame): integer; cdecl; external av__codec; procedure avcodec_default_release_buffer (s: PAVCodecContext; pic: PAVFrame); cdecl; external av__codec; function avcodec_default_reget_buffer (s: PAVCodecContext; pic: PAVFrame): integer; cdecl; external av__codec; procedure avcodec_align_dimensions(s: PAVCodecContext; width: Pinteger; height: PInteger); cdecl; external av__codec; function avcodec_check_dimensions (av_log_ctx: pointer; w: cardinal; h: cardinal): integer; cdecl; external av__codec; function avcodec_default_get_format(s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat; cdecl; external av__codec; function avcodec_thread_init (s: PAVCodecContext; thread_count: integer): integer; cdecl; external av__codec; procedure avcodec_thread_free (s: PAVCodecContext); cdecl; external av__codec; function avcodec_thread_execute (s: PAVCodecContext; func: pointer; arg: PPointer; ret: Pinteger; count: integer): integer; cdecl; external av__codec; function avcodec_default_execute (s: PAVCodecContext; func: pointer; arg: PPointer; ret: Pinteger; count: integer): integer; cdecl; external av__codec; //FIXME func typedef (** * opens / inits the AVCodecContext. * not thread save! *) function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer; cdecl; external av__codec; (** * Decode an audio frame. * * @param avctx the codec context. * @param samples output buffer, 16 byte aligned * @param frame_size_ptr the output buffer size in bytes, zero if no frame could be compressed * @param buf input buffer, 16 byte aligned * @param buf_size the input buffer size * @return 0 if successful, -1 if not. *) function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword; frame_size_ptr: pinteger; buf: pchar; buf_size: integer): integer; cdecl; external av__codec; (* decode a frame. * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end * @param buf_size the size of the buffer in bytes * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero * @return -1 if error, otherwise return the number of * bytes used. *) function avcodec_decode_video (avctx: PAVCodecContext; picture: PAVFrame; got_picture_ptr: pinteger; buf: PByte; buf_size: integer): integer; cdecl; external av__codec; function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle; got_sub_ptr: pinteger; const buf: pchar; buf_size: integer): integer; cdecl; external av__codec; function avcodec_parse_frame (avctx: PAVCodecContext; pdata: PPointer; data_size_ptr: pinteger; buf: pchar; buf_size: integer): integer; cdecl; external av__codec; function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte; buf_size: integer; const samples: Pword): integer; cdecl; external av__codec; (* avcodec_encode_video: -1 if error *) function avcodec_encode_video (avctx: PAVCodecContext; buf: pointer; buf_size: integer; pict: PAVFrame): integer; cdecl; external av__codec; function avcodec_encode_subtitle (avctx: PAVCodecContext; buf: pchar; buf_size: integer; const sub: PAVSubtitle): integer; cdecl; external av__codec; function avcodec_close (avctx: PAVCodecContext): integer; cdecl; external av__codec; procedure avcodec_register_all (); cdecl; external av__codec; procedure avcodec_flush_buffers (avctx: PAVCodecContext); cdecl; external av__codec; procedure avcodec_default_free_buffers (s: PAVCodecContext); cdecl; external av__codec; (* misc usefull functions *) (** * returns a single letter to describe the picture type *) function av_get_pict_type_char (pict_type: integer): char; cdecl; external av__codec; (** * returns codec bits per sample *) function av_get_bits_per_sample (codec_id: TCodecID): integer; cdecl; external av__codec; const AV_PARSER_PTS_NB = 4; PARSER_FLAG_COMPLETE_FRAMES = $0001; type PAVCodecParserContext = ^TAVCodecParserContext; PAVCodecParser = ^TAVCodecParser; TAVCodecParserContext = record priv_data: pointer; parser: PAVCodecParser; frame_offset: int64; (* offset of the current frame *) cur_offset: int64; (* current offset (incremented by each av_parser_parse()) *) last_frame_offset: int64; (* offset of the last frame *) (* video info *) pict_type: integer; (* XXX: put it back in AVCodecContext *) repeat_pict: integer; (* XXX: put it back in AVCodecContext *) pts: int64; (* pts of the current frame *) dts: int64; (* dts of the current frame *) (* private data *) last_pts: int64; last_dts: int64; fetch_timestamp: integer; cur_frame_start_index: integer; cur_frame_offset: array [0..AV_PARSER_PTS_NB - 1] of int64; cur_frame_pts: array [0..AV_PARSER_PTS_NB - 1] of int64; cur_frame_dts: array [0..AV_PARSER_PTS_NB - 1] of int64; flags: integer; end; TAVCodecParser = record codec_ids: array [0..4] of integer; (* several codec IDs are permitted *) priv_data_size: integer; parser_init: function (s: PAVCodecParserContext): integer; cdecl; parser_parse: function (s: PAVCodecParserContext; avctx: PAVCodecContext; poutbuf: PPointer; poutbuf_size: PInteger; const buf: pchar; buf_size: integer): integer; cdecl; parser_close: procedure (s: PAVCodecParserContext); cdecl; split: function (avctx: PAVCodecContext; const buf: pchar; buf_size: integer): integer; cdecl; next: PAVCodecParser; end; procedure av_register_codec_parser (parser: PAVCodecParser); cdecl; cdecl; external av__codec; function av_parser_init (codec_id: integer): PAVCodecParserContext; cdecl; external av__codec; function av_parser_parse (s: PAVCodecParserContext; avctx: PAVCodecContext; poutbuf: PPointer; poutbuf_size: pinteger; const buf: pchar; buf_size: integer; pts: int64; dts: int64): integer; cdecl; external av__codec; function av_parser_change (s: PAVCodecParserContext; avctx: PAVCodecContext; poutbuf: PPointer; poutbuf_size: PInteger; const buf: pchar; buf_size: integer; keyframe: integer): integer; cdecl; external av__codec; procedure av_parser_close (s: PAVCodecParserContext); cdecl; external av__codec; type PAVBitStreamFilterContext = ^TAVBitStreamFilterContext; PAVBitStreamFilter = ^TAVBitStreamFilter; TAVBitStreamFilterContext = record priv_data: pointer; filter: PAVBitStreamFilter; parser: PAVCodecParserContext; next: PAVBitStreamFilterContext; end; TAVBitStreamFilter = record name: pchar; priv_data_size: integer; filter: function (bsfc: PAVBitStreamFilterContext; avctx: PAVCodecContext; args: pchar; poutbuf: PPointer; poutbuf_size: PInteger; buf: PByte; buf_size: integer; keyframe: integer): integer; cdecl; next: PAVBitStreamFilter; end; procedure av_register_bitstream_filter (bsf: PAVBitStreamFilter); cdecl; external av__codec; function av_bitstream_filter_init (name: pchar): PAVBitStreamFilterContext; cdecl; external av__codec; function av_bitstream_filter_filter (bsfc: PAVBitStreamFilterContext; avctx: PAVCodecContext; args: pchar; poutbuf: PPointer; poutbuf_size: PInteger; buf: PByte; buf_size: integer; keyframe: integer): integer; cdecl; external av__codec; procedure av_bitstream_filter_close (bsf: PAVBitStreamFilterContext); cdecl; external av__codec; (* memory *) procedure av_fast_realloc (ptr: pointer; size: PCardinal; min_size: Cardinal); cdecl; external av__codec; (* for static data only *) (* call av_free_static to release all staticaly allocated tables *) procedure av_free_static (); cdecl; external av__codec; procedure av_mallocz_static(size: cardinal); cdecl; external av__codec; procedure av_realloc_static(ptr: pointer; size: Cardinal); cdecl; external av__codec; procedure img_copy (dst: PAVPicture; const src: PAVPicture; pix_fmt: TAVPixelFormat; width: integer; height: integer); cdecl; external av__codec; function img_crop (dst: PAVPicture; const src: PAVPicture; pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer; cdecl; external av__codec; function img_pad (dst: PAVPicture; const src: PAVPicture; height, width: integer; pix_fmt: TAVPixelFormat; padtop, padbottom, padleft, padright: integer; color: PInteger): integer; cdecl; external av__codec; implementation end.