2700 lines
78 KiB
C
2700 lines
78 KiB
C
/*
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* copyright (c) 2001 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_H
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#define AVCODEC_H
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/**
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* @file avcodec.h
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* external api header.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "avutil.h"
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#include <sys/types.h> /* size_t */
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#define AV_STRINGIFY(s) AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(29<<8)+0)
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#define LIBAVCODEC_VERSION 51.29.0
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#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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#define AV_NOPTS_VALUE INT64_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
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enum CodecID {
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CODEC_ID_NONE,
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CODEC_ID_MPEG1VIDEO,
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CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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CODEC_ID_MPEG2VIDEO_XVMC,
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CODEC_ID_H261,
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CODEC_ID_H263,
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CODEC_ID_RV10,
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CODEC_ID_RV20,
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CODEC_ID_MJPEG,
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CODEC_ID_MJPEGB,
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CODEC_ID_LJPEG,
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CODEC_ID_SP5X,
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CODEC_ID_JPEGLS,
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CODEC_ID_MPEG4,
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CODEC_ID_RAWVIDEO,
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CODEC_ID_MSMPEG4V1,
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CODEC_ID_MSMPEG4V2,
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CODEC_ID_MSMPEG4V3,
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CODEC_ID_WMV1,
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CODEC_ID_WMV2,
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CODEC_ID_H263P,
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CODEC_ID_H263I,
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CODEC_ID_FLV1,
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CODEC_ID_SVQ1,
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CODEC_ID_SVQ3,
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CODEC_ID_DVVIDEO,
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CODEC_ID_HUFFYUV,
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CODEC_ID_CYUV,
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CODEC_ID_H264,
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CODEC_ID_INDEO3,
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CODEC_ID_VP3,
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CODEC_ID_THEORA,
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CODEC_ID_ASV1,
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CODEC_ID_ASV2,
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CODEC_ID_FFV1,
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CODEC_ID_4XM,
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CODEC_ID_VCR1,
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CODEC_ID_CLJR,
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CODEC_ID_MDEC,
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CODEC_ID_ROQ,
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CODEC_ID_INTERPLAY_VIDEO,
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CODEC_ID_XAN_WC3,
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CODEC_ID_XAN_WC4,
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CODEC_ID_RPZA,
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CODEC_ID_CINEPAK,
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CODEC_ID_WS_VQA,
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CODEC_ID_MSRLE,
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CODEC_ID_MSVIDEO1,
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CODEC_ID_IDCIN,
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CODEC_ID_8BPS,
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CODEC_ID_SMC,
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CODEC_ID_FLIC,
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CODEC_ID_TRUEMOTION1,
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CODEC_ID_VMDVIDEO,
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CODEC_ID_MSZH,
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CODEC_ID_ZLIB,
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CODEC_ID_QTRLE,
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CODEC_ID_SNOW,
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CODEC_ID_TSCC,
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CODEC_ID_ULTI,
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CODEC_ID_QDRAW,
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CODEC_ID_VIXL,
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CODEC_ID_QPEG,
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CODEC_ID_XVID,
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CODEC_ID_PNG,
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CODEC_ID_PPM,
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CODEC_ID_PBM,
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CODEC_ID_PGM,
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CODEC_ID_PGMYUV,
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CODEC_ID_PAM,
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CODEC_ID_FFVHUFF,
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CODEC_ID_RV30,
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CODEC_ID_RV40,
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CODEC_ID_VC1,
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CODEC_ID_WMV3,
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CODEC_ID_LOCO,
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CODEC_ID_WNV1,
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CODEC_ID_AASC,
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CODEC_ID_INDEO2,
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CODEC_ID_FRAPS,
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CODEC_ID_TRUEMOTION2,
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CODEC_ID_BMP,
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CODEC_ID_CSCD,
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CODEC_ID_MMVIDEO,
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CODEC_ID_ZMBV,
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CODEC_ID_AVS,
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CODEC_ID_SMACKVIDEO,
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CODEC_ID_NUV,
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CODEC_ID_KMVC,
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CODEC_ID_FLASHSV,
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CODEC_ID_CAVS,
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CODEC_ID_JPEG2000,
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CODEC_ID_VMNC,
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CODEC_ID_VP5,
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CODEC_ID_VP6,
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CODEC_ID_VP6F,
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CODEC_ID_TARGA,
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CODEC_ID_DSICINVIDEO,
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CODEC_ID_TIERTEXSEQVIDEO,
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CODEC_ID_TIFF,
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CODEC_ID_GIF,
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CODEC_ID_FFH264,
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/* various pcm "codecs" */
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CODEC_ID_PCM_S16LE= 0x10000,
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CODEC_ID_PCM_S16BE,
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CODEC_ID_PCM_U16LE,
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CODEC_ID_PCM_U16BE,
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CODEC_ID_PCM_S8,
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CODEC_ID_PCM_U8,
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CODEC_ID_PCM_MULAW,
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CODEC_ID_PCM_ALAW,
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CODEC_ID_PCM_S32LE,
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CODEC_ID_PCM_S32BE,
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CODEC_ID_PCM_U32LE,
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CODEC_ID_PCM_U32BE,
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CODEC_ID_PCM_S24LE,
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CODEC_ID_PCM_S24BE,
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CODEC_ID_PCM_U24LE,
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CODEC_ID_PCM_U24BE,
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CODEC_ID_PCM_S24DAUD,
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/* various adpcm codecs */
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CODEC_ID_ADPCM_IMA_QT= 0x11000,
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CODEC_ID_ADPCM_IMA_WAV,
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CODEC_ID_ADPCM_IMA_DK3,
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CODEC_ID_ADPCM_IMA_DK4,
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CODEC_ID_ADPCM_IMA_WS,
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CODEC_ID_ADPCM_IMA_SMJPEG,
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CODEC_ID_ADPCM_MS,
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CODEC_ID_ADPCM_4XM,
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CODEC_ID_ADPCM_XA,
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CODEC_ID_ADPCM_ADX,
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CODEC_ID_ADPCM_EA,
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CODEC_ID_ADPCM_G726,
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CODEC_ID_ADPCM_CT,
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CODEC_ID_ADPCM_SWF,
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CODEC_ID_ADPCM_YAMAHA,
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CODEC_ID_ADPCM_SBPRO_4,
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CODEC_ID_ADPCM_SBPRO_3,
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CODEC_ID_ADPCM_SBPRO_2,
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/* AMR */
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CODEC_ID_AMR_NB= 0x12000,
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CODEC_ID_AMR_WB,
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/* RealAudio codecs*/
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CODEC_ID_RA_144= 0x13000,
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CODEC_ID_RA_288,
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/* various DPCM codecs */
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CODEC_ID_ROQ_DPCM= 0x14000,
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CODEC_ID_INTERPLAY_DPCM,
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CODEC_ID_XAN_DPCM,
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CODEC_ID_SOL_DPCM,
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CODEC_ID_MP2= 0x15000,
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CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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CODEC_ID_AAC,
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#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
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CODEC_ID_MPEG4AAC,
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#endif
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CODEC_ID_AC3,
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CODEC_ID_DTS,
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CODEC_ID_VORBIS,
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CODEC_ID_DVAUDIO,
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CODEC_ID_WMAV1,
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CODEC_ID_WMAV2,
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CODEC_ID_MACE3,
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CODEC_ID_MACE6,
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CODEC_ID_VMDAUDIO,
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CODEC_ID_SONIC,
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CODEC_ID_SONIC_LS,
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CODEC_ID_FLAC,
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CODEC_ID_MP3ADU,
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CODEC_ID_MP3ON4,
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CODEC_ID_SHORTEN,
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CODEC_ID_ALAC,
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CODEC_ID_WESTWOOD_SND1,
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CODEC_ID_GSM,
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CODEC_ID_QDM2,
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CODEC_ID_COOK,
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CODEC_ID_TRUESPEECH,
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CODEC_ID_TTA,
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CODEC_ID_SMACKAUDIO,
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CODEC_ID_QCELP,
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CODEC_ID_WAVPACK,
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CODEC_ID_DSICINAUDIO,
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CODEC_ID_IMC,
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CODEC_ID_MUSEPACK7,
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/* subtitle codecs */
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CODEC_ID_DVD_SUBTITLE= 0x17000,
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CODEC_ID_DVB_SUBTITLE,
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CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
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stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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enum CodecType {
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CODEC_TYPE_UNKNOWN = -1,
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CODEC_TYPE_VIDEO,
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CODEC_TYPE_AUDIO,
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CODEC_TYPE_DATA,
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CODEC_TYPE_SUBTITLE,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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/* all in native endian */
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enum SampleFormat {
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SAMPLE_FMT_NONE = -1,
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SAMPLE_FMT_U8, ///< unsigned 8 bits
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SAMPLE_FMT_S16, ///< signed 16 bits
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SAMPLE_FMT_S24, ///< signed 24 bits
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SAMPLE_FMT_S32, ///< signed 32 bits
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SAMPLE_FMT_FLT, ///< float
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
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/**
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* Required number of additionally allocated bytes at the end of the input bitstream for decoding.
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* this is mainly needed because some optimized bitstream readers read
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* 32 or 64 bit at once and could read over the end<br>
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* Note, if the first 23 bits of the additional bytes are not 0 then damaged
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* MPEG bitstreams could cause overread and segfault
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*/
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/**
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* minimum encoding buffer size.
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* used to avoid some checks during header writing
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*/
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#define FF_MIN_BUFFER_SIZE 16384
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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ME_ZERO = 1,
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ME_FULL,
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ME_LOG,
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ME_PHODS,
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ME_EPZS,
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ME_X1,
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ME_HEX,
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ME_UMH,
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ME_ITER,
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};
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enum AVDiscard{
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//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
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AVDISCARD_NONE =-16, ///< discard nothing
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AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
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AVDISCARD_NONREF = 8, ///< discard all non reference
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AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
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AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
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AVDISCARD_ALL = 48, ///< discard all
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};
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typedef struct RcOverride{
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int start_frame;
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int end_frame;
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int qscale; // if this is 0 then quality_factor will be used instead
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float quality_factor;
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} RcOverride;
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#define FF_MAX_B_FRAMES 16
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/* encoding support
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these flags can be passed in AVCodecContext.flags before initing
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Note: not everything is supported yet.
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*/
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#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
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#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
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#define CODEC_FLAG_GMC 0x0020 ///< use GMC
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#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
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#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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/* parent program gurantees that the input for b-frame containing streams is not written to
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for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
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#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
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#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
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#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
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#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
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#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
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of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
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#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
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#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
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#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
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#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
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#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP ((int)0x80000000)
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#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
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#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
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#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
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#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< place global headers at every keyframe instead of in extradata
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#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow b-frames to be used as references
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#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for b-frames
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#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
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#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform
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#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip
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#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
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#define CODEC_FLAG2_BRDO 0x00000400 ///< b-frame rate-distortion optimization
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#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< use MPEG-2 intra VLC table
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#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
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#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format
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#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skiping
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/* Unsupported options :
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* Syntax Arithmetic coding (SAC)
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* Reference Picture Selection
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* Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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/**
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* Codec uses get_buffer() for allocating buffers.
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* direct rendering method 1
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*/
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#define CODEC_CAP_DR1 0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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used */
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#define CODEC_CAP_PARSE_ONLY 0x0004
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#define CODEC_CAP_TRUNCATED 0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL 0x0010
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/**
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* codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
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* if this is not set, the codec is guranteed to never be feeded with NULL data
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*/
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#define CODEC_CAP_DELAY 0x0020
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/**
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* Codec can be fed a final frame with a smaller size.
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* This can be used to prevent truncation of the last audio samples.
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*/
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#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
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//the following defines may change, don't expect compatibility if you use them
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#define MB_TYPE_INTRA4x4 0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16 0x0008
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#define MB_TYPE_16x8 0x0010
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#define MB_TYPE_8x16 0x0020
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#define MB_TYPE_8x8 0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2 0x0100 //FIXME
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#define MB_TYPE_ACPRED 0x0200
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#define MB_TYPE_GMC 0x0400
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#define MB_TYPE_SKIP 0x0800
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#define MB_TYPE_P0L0 0x1000
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#define MB_TYPE_P1L0 0x2000
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#define MB_TYPE_P0L1 0x4000
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#define MB_TYPE_P1L1 0x8000
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#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
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#define MB_TYPE_QUANT 0x00010000
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#define MB_TYPE_CBP 0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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* Pan Scan area.
|
|
* this specifies the area which should be displayed. Note there may be multiple such areas for one frame
|
|
*/
|
|
typedef struct AVPanScan{
|
|
/**
|
|
* id.
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc
|
|
*/
|
|
int id;
|
|
|
|
/**
|
|
* width and height in 1/16 pel
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc
|
|
*/
|
|
int width;
|
|
int height;
|
|
|
|
/**
|
|
* position of the top left corner in 1/16 pel for up to 3 fields/frames.
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc
|
|
*/
|
|
int16_t position[3][2];
|
|
}AVPanScan;
|
|
|
|
#define FF_COMMON_FRAME \
|
|
/**\
|
|
* pointer to the picture planes.\
|
|
* this might be different from the first allocated byte\
|
|
* - encoding: \
|
|
* - decoding: \
|
|
*/\
|
|
uint8_t *data[4];\
|
|
int linesize[4];\
|
|
/**\
|
|
* 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\
|
|
* - encoding: \
|
|
* - decoding: \
|
|
*/\
|
|
uint8_t *base[4];\
|
|
/**\
|
|
* 1 -> keyframe, 0-> not\
|
|
* - encoding: set by lavc\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int key_frame;\
|
|
\
|
|
/**\
|
|
* picture type of the frame, see ?_TYPE below.\
|
|
* - encoding: set by lavc for coded_picture (and set by user for input)\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int pict_type;\
|
|
\
|
|
/**\
|
|
* 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 lavc\
|
|
*/\
|
|
int64_t pts;\
|
|
\
|
|
/**\
|
|
* picture number in bitstream order.\
|
|
* - encoding: set by\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int coded_picture_number;\
|
|
/**\
|
|
* picture number in display order.\
|
|
* - encoding: set by\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int display_picture_number;\
|
|
\
|
|
/**\
|
|
* quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
|
|
* - encoding: set by lavc for coded_picture (and set by user for input)\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int quality; \
|
|
\
|
|
/**\
|
|
* 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()\
|
|
*/\
|
|
int age;\
|
|
\
|
|
/**\
|
|
* is this picture used as reference\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc (before get_buffer() call))\
|
|
*/\
|
|
int reference;\
|
|
\
|
|
/**\
|
|
* QP table\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int8_t *qscale_table;\
|
|
/**\
|
|
* QP store stride\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int qstride;\
|
|
\
|
|
/**\
|
|
* mbskip_table[mb]>=1 if MB didnt change\
|
|
* stride= mb_width = (width+15)>>4\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
uint8_t *mbskip_table;\
|
|
\
|
|
/**\
|
|
* 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\
|
|
*/\
|
|
int16_t (*motion_val[2])[2];\
|
|
\
|
|
/**\
|
|
* Macroblock type table\
|
|
* mb_type_base + mb_width + 2\
|
|
* - encoding: set by user\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
uint32_t *mb_type;\
|
|
\
|
|
/**\
|
|
* 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 lavc\
|
|
*/\
|
|
uint8_t motion_subsample_log2;\
|
|
\
|
|
/**\
|
|
* for some private data of the user\
|
|
* - encoding: unused\
|
|
* - decoding: set by user\
|
|
*/\
|
|
void *opaque;\
|
|
\
|
|
/**\
|
|
* error\
|
|
* - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
|
|
* - decoding: unused\
|
|
*/\
|
|
uint64_t error[4];\
|
|
\
|
|
/**\
|
|
* type of the buffer (to keep track of who has to dealloc data[*])\
|
|
* - encoding: set by the one who allocs it\
|
|
* - decoding: set by the one who allocs it\
|
|
* Note: user allocated (direct rendering) & internal buffers can not coexist currently\
|
|
*/\
|
|
int type;\
|
|
\
|
|
/**\
|
|
* when decoding, this signal how much the picture must be delayed.\
|
|
* extra_delay = repeat_pict / (2*fps)\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int repeat_pict;\
|
|
\
|
|
/**\
|
|
* \
|
|
*/\
|
|
int qscale_type;\
|
|
\
|
|
/**\
|
|
* The content of the picture is interlaced.\
|
|
* - encoding: set by user\
|
|
* - decoding: set by lavc (default 0)\
|
|
*/\
|
|
int interlaced_frame;\
|
|
\
|
|
/**\
|
|
* if the content is interlaced, is top field displayed first.\
|
|
* - encoding: set by user\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int top_field_first;\
|
|
\
|
|
/**\
|
|
* Pan scan.\
|
|
* - encoding: set by user\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
AVPanScan *pan_scan;\
|
|
\
|
|
/**\
|
|
* tell user application that palette has changed from previous frame.\
|
|
* - encoding: ??? (no palette-enabled encoder yet)\
|
|
* - decoding: set by lavc (default 0)\
|
|
*/\
|
|
int palette_has_changed;\
|
|
\
|
|
/**\
|
|
* Codec suggestion on buffer type if != 0\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc (before get_buffer() call))\
|
|
*/\
|
|
int buffer_hints;\
|
|
\
|
|
/**\
|
|
* DCT coeffitients\
|
|
* - encoding: unused\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
short *dct_coeff;\
|
|
\
|
|
/**\
|
|
* Motion referece frame index\
|
|
* - encoding: set by user\
|
|
* - decoding: set by lavc\
|
|
*/\
|
|
int8_t *ref_index[2];
|
|
|
|
#define FF_QSCALE_TYPE_MPEG1 0
|
|
#define FF_QSCALE_TYPE_MPEG2 1
|
|
#define FF_QSCALE_TYPE_H264 2
|
|
|
|
#define FF_BUFFER_TYPE_INTERNAL 1
|
|
#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
|
|
#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
|
|
#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, don't dealloc anything
|
|
|
|
|
|
#define FF_I_TYPE 1 // Intra
|
|
#define FF_P_TYPE 2 // Predicted
|
|
#define FF_B_TYPE 3 // Bi-dir predicted
|
|
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
|
|
#define FF_SI_TYPE 5
|
|
#define FF_SP_TYPE 6
|
|
|
|
#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
|
|
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
|
|
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
|
|
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
|
|
|
|
/**
|
|
* Audio Video Frame.
|
|
*/
|
|
typedef struct AVFrame {
|
|
FF_COMMON_FRAME
|
|
} AVFrame;
|
|
|
|
#define DEFAULT_FRAME_RATE_BASE 1001000
|
|
|
|
/**
|
|
* main external api structure.
|
|
*/
|
|
typedef struct AVCodecContext {
|
|
/**
|
|
* Info on struct for av_log
|
|
* - set by avcodec_alloc_context
|
|
*/
|
|
AVClass *av_class;
|
|
/**
|
|
* 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
|
|
*/
|
|
int bit_rate;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int bit_rate_tolerance;
|
|
|
|
/**
|
|
* CODEC_FLAG_*.
|
|
* - encoding: set by user.
|
|
* - decoding: set by user.
|
|
*/
|
|
int flags;
|
|
|
|
/**
|
|
* some codecs needs additionnal format info. It is stored here
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc. (FIXME is this ok?)
|
|
*/
|
|
int sub_id;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int me_method;
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
uint8_t *extradata;
|
|
int extradata_size;
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
AVRational time_base;
|
|
|
|
/* 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
|
|
*/
|
|
int width, height;
|
|
|
|
#define FF_ASPECT_EXTENDED 15
|
|
|
|
/**
|
|
* the number of pictures in a group of pitures, or 0 for intra_only.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int gop_size;
|
|
|
|
/**
|
|
* pixel format, see PIX_FMT_xxx.
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc.
|
|
*/
|
|
enum PixelFormat pix_fmt;
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
int rate_emu;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
void (*draw_horiz_band)(struct AVCodecContext *s,
|
|
const AVFrame *src, int offset[4],
|
|
int y, int type, int height);
|
|
|
|
/* audio only */
|
|
int sample_rate; ///< samples per sec
|
|
int channels;
|
|
|
|
/**
|
|
* audio sample format.
|
|
* - encoding: set by user.
|
|
* - decoding: set by lavc.
|
|
*/
|
|
enum SampleFormat sample_fmt; ///< sample format, currenly unused
|
|
|
|
/* the following data should not be initialized */
|
|
/**
|
|
* samples per packet. initialized when calling 'init'
|
|
*/
|
|
int frame_size;
|
|
int frame_number; ///< audio or video frame number
|
|
int real_pict_num; ///< 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
|
|
*/
|
|
int delay;
|
|
|
|
/* - encoding parameters */
|
|
float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
|
|
float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
|
|
|
|
/**
|
|
* minimum quantizer.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int qmin;
|
|
|
|
/**
|
|
* maximum quantizer.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int qmax;
|
|
|
|
/**
|
|
* maximum quantizer difference etween frames.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int max_qdiff;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int max_b_frames;
|
|
|
|
/**
|
|
* qscale factor between ip and b frames.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
float b_quant_factor;
|
|
|
|
/** obsolete FIXME remove */
|
|
int rc_strategy;
|
|
#define FF_RC_STRATEGY_XVID 1
|
|
|
|
int b_frame_strategy;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int hurry_up;
|
|
|
|
struct AVCodec *codec;
|
|
|
|
void *priv_data;
|
|
|
|
/* unused, FIXME remove*/
|
|
int rtp_mode;
|
|
|
|
int rtp_payload_size; /* 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 */
|
|
void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
|
|
|
|
/* statistics, used for 2-pass encoding */
|
|
int mv_bits;
|
|
int header_bits;
|
|
int i_tex_bits;
|
|
int p_tex_bits;
|
|
int i_count;
|
|
int p_count;
|
|
int skip_count;
|
|
int misc_bits;
|
|
|
|
/**
|
|
* number of bits used for the previously encoded frame.
|
|
* - encoding: set by lavc
|
|
* - decoding: unused
|
|
*/
|
|
int frame_bits;
|
|
|
|
/**
|
|
* private data of the user, can be used to carry app specific stuff.
|
|
* - encoding: set by user
|
|
* - decoding: set by user
|
|
*/
|
|
void *opaque;
|
|
|
|
char codec_name[32];
|
|
enum CodecType codec_type; /* see CODEC_TYPE_xxx */
|
|
enum CodecID codec_id; /* 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
|
|
*/
|
|
unsigned int codec_tag;
|
|
|
|
/**
|
|
* workaround bugs in encoders which sometimes cannot be detected automatically.
|
|
* - encoding: set by user
|
|
* - decoding: set by user
|
|
*/
|
|
int workaround_bugs;
|
|
#define FF_BUG_AUTODETECT 1 ///< autodetection
|
|
#define FF_BUG_OLD_MSMPEG4 2
|
|
#define FF_BUG_XVID_ILACE 4
|
|
#define FF_BUG_UMP4 8
|
|
#define FF_BUG_NO_PADDING 16
|
|
#define FF_BUG_AMV 32
|
|
#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
|
|
#define FF_BUG_QPEL_CHROMA 64
|
|
#define FF_BUG_STD_QPEL 128
|
|
#define FF_BUG_QPEL_CHROMA2 256
|
|
#define FF_BUG_DIRECT_BLOCKSIZE 512
|
|
#define FF_BUG_EDGE 1024
|
|
#define FF_BUG_HPEL_CHROMA 2048
|
|
#define FF_BUG_DC_CLIP 4096
|
|
#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
|
|
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
|
|
|
|
/**
|
|
* luma single coeff elimination threshold.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int luma_elim_threshold;
|
|
|
|
/**
|
|
* chroma single coeff elimination threshold.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int chroma_elim_threshold;
|
|
|
|
/**
|
|
* strictly follow the std (MPEG4, ...).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int strict_std_compliance;
|
|
#define FF_COMPLIANCE_VERY_STRICT 2 ///< strictly conform to a older more strict version of the spec or reference software
|
|
#define FF_COMPLIANCE_STRICT 1 ///< strictly conform to all the things in the spec no matter what consequences
|
|
#define FF_COMPLIANCE_NORMAL 0
|
|
#define FF_COMPLIANCE_INOFFICIAL -1 ///< allow inofficial extensions
|
|
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
float b_quant_offset;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int error_resilience;
|
|
#define FF_ER_CAREFUL 1
|
|
#define FF_ER_COMPLIANT 2
|
|
#define FF_ER_AGGRESSIVE 3
|
|
#define FF_ER_VERY_AGGRESSIVE 4
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
|
|
|
|
/**
|
|
* if 1 the stream has a 1 frame delay during decoding.
|
|
* - encoding: set by lavc
|
|
* - decoding: set by lavc
|
|
*/
|
|
int has_b_frames;
|
|
|
|
/**
|
|
* number of bytes per packet if constant and known or 0
|
|
* used by some WAV based audio codecs
|
|
*/
|
|
int block_align;
|
|
|
|
int parse_only; /* - 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
|
|
*/
|
|
int mpeg_quant;
|
|
|
|
/**
|
|
* pass1 encoding statistics output buffer.
|
|
* - encoding: set by lavc
|
|
* - decoding: unused
|
|
*/
|
|
char *stats_out;
|
|
|
|
/**
|
|
* pass2 encoding statistics input buffer.
|
|
* concatenated stuff from stats_out of pass1 should be placed here
|
|
* - encoding: allocated/set/freed by user
|
|
* - decoding: unused
|
|
*/
|
|
char *stats_in;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
float rc_qsquish;
|
|
|
|
float rc_qmod_amp;
|
|
int rc_qmod_freq;
|
|
|
|
/**
|
|
* ratecontrol override, see RcOverride.
|
|
* - encoding: allocated/set/freed by user.
|
|
* - decoding: unused
|
|
*/
|
|
RcOverride *rc_override;
|
|
int rc_override_count;
|
|
|
|
/**
|
|
* rate control equation.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
char *rc_eq;
|
|
|
|
/**
|
|
* maximum bitrate.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int rc_max_rate;
|
|
|
|
/**
|
|
* minimum bitrate.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int rc_min_rate;
|
|
|
|
/**
|
|
* decoder bitstream buffer size.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int rc_buffer_size;
|
|
float rc_buffer_aggressivity;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
float i_quant_factor;
|
|
|
|
/**
|
|
* qscale offset between p and i frames.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
float i_quant_offset;
|
|
|
|
/**
|
|
* initial complexity for pass1 ratecontrol.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
float rc_initial_cplx;
|
|
|
|
/**
|
|
* dct algorithm, see FF_DCT_* below.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int dct_algo;
|
|
#define FF_DCT_AUTO 0
|
|
#define FF_DCT_FASTINT 1
|
|
#define FF_DCT_INT 2
|
|
#define FF_DCT_MMX 3
|
|
#define FF_DCT_MLIB 4
|
|
#define FF_DCT_ALTIVEC 5
|
|
#define FF_DCT_FAAN 6
|
|
|
|
/**
|
|
* luminance masking (0-> disabled).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float lumi_masking;
|
|
|
|
/**
|
|
* temporary complexity masking (0-> disabled).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float temporal_cplx_masking;
|
|
|
|
/**
|
|
* spatial complexity masking (0-> disabled).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float spatial_cplx_masking;
|
|
|
|
/**
|
|
* p block masking (0-> disabled).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float p_masking;
|
|
|
|
/**
|
|
* darkness masking (0-> disabled).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float dark_masking;
|
|
|
|
|
|
/* for binary compatibility */
|
|
int unused;
|
|
|
|
/**
|
|
* idct algorithm, see FF_IDCT_* below.
|
|
* - encoding: set by user
|
|
* - decoding: set by user
|
|
*/
|
|
int idct_algo;
|
|
#define FF_IDCT_AUTO 0
|
|
#define FF_IDCT_INT 1
|
|
#define FF_IDCT_SIMPLE 2
|
|
#define FF_IDCT_SIMPLEMMX 3
|
|
#define FF_IDCT_LIBMPEG2MMX 4
|
|
#define FF_IDCT_PS2 5
|
|
#define FF_IDCT_MLIB 6
|
|
#define FF_IDCT_ARM 7
|
|
#define FF_IDCT_ALTIVEC 8
|
|
#define FF_IDCT_SH4 9
|
|
#define FF_IDCT_SIMPLEARM 10
|
|
#define FF_IDCT_H264 11
|
|
#define FF_IDCT_VP3 12
|
|
#define FF_IDCT_IPP 13
|
|
#define FF_IDCT_XVIDMMX 14
|
|
#define FF_IDCT_CAVS 15
|
|
#define FF_IDCT_SIMPLEARMV5TE 16
|
|
|
|
/**
|
|
* slice count.
|
|
* - encoding: set by lavc
|
|
* - decoding: set by user (or 0)
|
|
*/
|
|
int slice_count;
|
|
/**
|
|
* slice offsets in the frame in bytes.
|
|
* - encoding: set/allocated by lavc
|
|
* - decoding: set/allocated by user (or NULL)
|
|
*/
|
|
int *slice_offset;
|
|
|
|
/**
|
|
* error concealment flags.
|
|
* - encoding: unused
|
|
* - decoding: set by user
|
|
*/
|
|
int error_concealment;
|
|
#define FF_EC_GUESS_MVS 1
|
|
#define FF_EC_DEBLOCK 2
|
|
|
|
/**
|
|
* 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)
|
|
*/
|
|
unsigned dsp_mask;
|
|
#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
|
|
/* lower 16 bits - CPU features */
|
|
#ifdef HAVE_MMX
|
|
#define FF_MM_MMX 0x0001 /* standard MMX */
|
|
#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
|
|
#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
|
|
#define FF_MM_SSE 0x0008 /* SSE functions */
|
|
#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
|
|
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
|
|
#endif /* HAVE_MMX */
|
|
#ifdef HAVE_IWMMXT
|
|
#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
|
|
#endif /* HAVE_IWMMXT */
|
|
|
|
/**
|
|
* bits per sample/pixel from the demuxer (needed for huffyuv).
|
|
* - encoding: set by lavc
|
|
* - decoding: set by user
|
|
*/
|
|
int bits_per_sample;
|
|
|
|
/**
|
|
* prediction method (needed for huffyuv).
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int prediction_method;
|
|
#define FF_PRED_LEFT 0
|
|
#define FF_PRED_PLANE 1
|
|
#define FF_PRED_MEDIAN 2
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
AVRational sample_aspect_ratio;
|
|
|
|
/**
|
|
* the picture in the bitstream.
|
|
* - encoding: set by lavc
|
|
* - decoding: set by lavc
|
|
*/
|
|
AVFrame *coded_frame;
|
|
|
|
/**
|
|
* debug.
|
|
* - encoding: set by user.
|
|
* - decoding: set by user.
|
|
*/
|
|
int debug;
|
|
#define FF_DEBUG_PICT_INFO 1
|
|
#define FF_DEBUG_RC 2
|
|
#define FF_DEBUG_BITSTREAM 4
|
|
#define FF_DEBUG_MB_TYPE 8
|
|
#define FF_DEBUG_QP 16
|
|
#define FF_DEBUG_MV 32
|
|
#define FF_DEBUG_DCT_COEFF 0x00000040
|
|
#define FF_DEBUG_SKIP 0x00000080
|
|
#define FF_DEBUG_STARTCODE 0x00000100
|
|
#define FF_DEBUG_PTS 0x00000200
|
|
#define FF_DEBUG_ER 0x00000400
|
|
#define FF_DEBUG_MMCO 0x00000800
|
|
#define FF_DEBUG_BUGS 0x00001000
|
|
#define FF_DEBUG_VIS_QP 0x00002000
|
|
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
|
|
|
|
/**
|
|
* debug.
|
|
* - encoding: set by user.
|
|
* - decoding: set by user.
|
|
*/
|
|
int debug_mv;
|
|
#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
|
|
#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
|
|
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
|
|
|
|
/**
|
|
* error.
|
|
* - encoding: set by lavc if flags&CODEC_FLAG_PSNR
|
|
* - decoding: unused
|
|
*/
|
|
uint64_t error[4];
|
|
|
|
/**
|
|
* minimum MB quantizer.
|
|
* - encoding: unused
|
|
* - decoding: unused
|
|
*/
|
|
int mb_qmin;
|
|
|
|
/**
|
|
* maximum MB quantizer.
|
|
* - encoding: unused
|
|
* - decoding: unused
|
|
*/
|
|
int mb_qmax;
|
|
|
|
/**
|
|
* motion estimation compare function.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int me_cmp;
|
|
/**
|
|
* subpixel motion estimation compare function.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int me_sub_cmp;
|
|
/**
|
|
* macroblock compare function (not supported yet).
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int mb_cmp;
|
|
/**
|
|
* interlaced dct compare function
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int ildct_cmp;
|
|
#define FF_CMP_SAD 0
|
|
#define FF_CMP_SSE 1
|
|
#define FF_CMP_SATD 2
|
|
#define FF_CMP_DCT 3
|
|
#define FF_CMP_PSNR 4
|
|
#define FF_CMP_BIT 5
|
|
#define FF_CMP_RD 6
|
|
#define FF_CMP_ZERO 7
|
|
#define FF_CMP_VSAD 8
|
|
#define FF_CMP_VSSE 9
|
|
#define FF_CMP_NSSE 10
|
|
#define FF_CMP_W53 11
|
|
#define FF_CMP_W97 12
|
|
#define FF_CMP_DCTMAX 13
|
|
#define FF_CMP_DCT264 14
|
|
#define FF_CMP_CHROMA 256
|
|
|
|
/**
|
|
* ME diamond size & shape.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int dia_size;
|
|
|
|
/**
|
|
* amount of previous MV predictors (2a+1 x 2a+1 square).
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int last_predictor_count;
|
|
|
|
/**
|
|
* pre pass for motion estimation.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int pre_me;
|
|
|
|
/**
|
|
* motion estimation pre pass compare function.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int me_pre_cmp;
|
|
|
|
/**
|
|
* ME pre pass diamond size & shape.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int pre_dia_size;
|
|
|
|
/**
|
|
* subpel ME quality.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int me_subpel_quality;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int dtg_active_format;
|
|
#define FF_DTG_AFD_SAME 8
|
|
#define FF_DTG_AFD_4_3 9
|
|
#define FF_DTG_AFD_16_9 10
|
|
#define FF_DTG_AFD_14_9 11
|
|
#define FF_DTG_AFD_4_3_SP_14_9 13
|
|
#define FF_DTG_AFD_16_9_SP_14_9 14
|
|
#define FF_DTG_AFD_SP_4_3 15
|
|
|
|
/**
|
|
* Maximum motion estimation search range in subpel units.
|
|
* if 0 then no limit
|
|
*
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int me_range;
|
|
|
|
/**
|
|
* intra quantizer bias.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int intra_quant_bias;
|
|
#define FF_DEFAULT_QUANT_BIAS 999999
|
|
|
|
/**
|
|
* inter quantizer bias.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int inter_quant_bias;
|
|
|
|
/**
|
|
* color table ID.
|
|
* - encoding: unused.
|
|
* - decoding: which clrtable should be used for 8bit RGB images
|
|
* table have to be stored somewhere FIXME
|
|
*/
|
|
int color_table_id;
|
|
|
|
/**
|
|
* internal_buffer count.
|
|
* Don't touch, used by lavc default_get_buffer()
|
|
*/
|
|
int internal_buffer_count;
|
|
|
|
/**
|
|
* internal_buffers.
|
|
* Don't touch, used by lavc default_get_buffer()
|
|
*/
|
|
void *internal_buffer;
|
|
|
|
#define FF_LAMBDA_SHIFT 7
|
|
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
|
|
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
|
|
#define FF_LAMBDA_MAX (256*128-1)
|
|
|
|
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
|
|
/**
|
|
* 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
|
|
*/
|
|
int global_quality;
|
|
|
|
#define FF_CODER_TYPE_VLC 0
|
|
#define FF_CODER_TYPE_AC 1
|
|
/**
|
|
* coder type
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int coder_type;
|
|
|
|
/**
|
|
* context model
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int context_model;
|
|
#if 0
|
|
/**
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: set by user.
|
|
*/
|
|
uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
|
|
#endif
|
|
|
|
/**
|
|
* slice flags
|
|
* - encoding: unused
|
|
* - decoding: set by user.
|
|
*/
|
|
int slice_flags;
|
|
#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
|
|
#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
|
|
#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
|
|
|
|
/**
|
|
* XVideo Motion Acceleration
|
|
* - encoding: forbidden
|
|
* - decoding: set by decoder
|
|
*/
|
|
int xvmc_acceleration;
|
|
|
|
/**
|
|
* macroblock decision mode
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int mb_decision;
|
|
#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
|
|
#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
|
|
#define FF_MB_DECISION_RD 2 ///< rate distoration
|
|
|
|
/**
|
|
* custom intra quantization matrix
|
|
* - encoding: set by user, can be NULL
|
|
* - decoding: set by lavc
|
|
*/
|
|
uint16_t *intra_matrix;
|
|
|
|
/**
|
|
* custom inter quantization matrix
|
|
* - encoding: set by user, can be NULL
|
|
* - decoding: set by lavc
|
|
*/
|
|
uint16_t *inter_matrix;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
unsigned int stream_codec_tag;
|
|
|
|
/**
|
|
* scene change detection threshold.
|
|
* 0 is default, larger means fewer detected scene changes
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int scenechange_threshold;
|
|
|
|
/**
|
|
* minimum lagrange multipler
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int lmin;
|
|
|
|
/**
|
|
* maximum lagrange multipler
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int lmax;
|
|
|
|
/**
|
|
* Palette control structure
|
|
* - encoding: ??? (no palette-enabled encoder yet)
|
|
* - decoding: set by user.
|
|
*/
|
|
struct AVPaletteControl *palctrl;
|
|
|
|
/**
|
|
* noise reduction strength
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int noise_reduction;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
|
|
|
|
/**
|
|
* number of bits which should be loaded into the rc buffer before decoding starts
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int rc_initial_buffer_occupancy;
|
|
|
|
/**
|
|
*
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int inter_threshold;
|
|
|
|
/**
|
|
* CODEC_FLAG2_*.
|
|
* - encoding: set by user.
|
|
* - decoding: set by user.
|
|
*/
|
|
int flags2;
|
|
|
|
/**
|
|
* simulates errors in the bitstream to test error concealment.
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int error_rate;
|
|
|
|
/**
|
|
* MP3 antialias algorithm, see FF_AA_* below.
|
|
* - encoding: unused
|
|
* - decoding: set by user
|
|
*/
|
|
int antialias_algo;
|
|
#define FF_AA_AUTO 0
|
|
#define FF_AA_FASTINT 1 //not implemented yet
|
|
#define FF_AA_INT 2
|
|
#define FF_AA_FLOAT 3
|
|
/**
|
|
* Quantizer noise shaping.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int quantizer_noise_shaping;
|
|
|
|
/**
|
|
* Thread count.
|
|
* is used to decide how many independant tasks should be passed to execute()
|
|
* - encoding: set by user
|
|
* - decoding: set by user
|
|
*/
|
|
int thread_count;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
|
|
|
|
/**
|
|
* Thread opaque.
|
|
* can be used by execute() to store some per AVCodecContext stuff.
|
|
* - encoding: set by execute()
|
|
* - decoding: set by execute()
|
|
*/
|
|
void *thread_opaque;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int me_threshold;
|
|
|
|
/**
|
|
* Macroblock threshold. under which the user specified macroblock types will be used
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int mb_threshold;
|
|
|
|
/**
|
|
* precision of the intra dc coefficient - 8.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int intra_dc_precision;
|
|
|
|
/**
|
|
* noise vs. sse weight for the nsse comparsion function.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int nsse_weight;
|
|
|
|
/**
|
|
* number of macroblock rows at the top which are skipped.
|
|
* - encoding: unused
|
|
* - decoding: set by user
|
|
*/
|
|
int skip_top;
|
|
|
|
/**
|
|
* number of macroblock rows at the bottom which are skipped.
|
|
* - encoding: unused
|
|
* - decoding: set by user
|
|
*/
|
|
int skip_bottom;
|
|
|
|
/**
|
|
* profile
|
|
* - encoding: set by user
|
|
* - decoding: set by lavc
|
|
*/
|
|
int profile;
|
|
#define FF_PROFILE_UNKNOWN -99
|
|
|
|
/**
|
|
* level
|
|
* - encoding: set by user
|
|
* - decoding: set by lavc
|
|
*/
|
|
int level;
|
|
#define FF_LEVEL_UNKNOWN -99
|
|
|
|
/**
|
|
* low resolution decoding. 1-> 1/2 size, 2->1/4 size
|
|
* - encoding: unused
|
|
* - decoding: set by user
|
|
*/
|
|
int lowres;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
int coded_width, coded_height;
|
|
|
|
/**
|
|
* frame skip threshold
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int frame_skip_threshold;
|
|
|
|
/**
|
|
* frame skip factor
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int frame_skip_factor;
|
|
|
|
/**
|
|
* frame skip exponent
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
int frame_skip_exp;
|
|
|
|
/**
|
|
* frame skip comparission function
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int frame_skip_cmp;
|
|
|
|
/**
|
|
* border processing masking. raises the quantizer for mbs on the borders
|
|
* of the picture.
|
|
* - encoding: set by user
|
|
* - decoding: unused
|
|
*/
|
|
float border_masking;
|
|
|
|
/**
|
|
* minimum MB lagrange multipler.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int mb_lmin;
|
|
|
|
/**
|
|
* maximum MB lagrange multipler.
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int mb_lmax;
|
|
|
|
/**
|
|
*
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int me_penalty_compensation;
|
|
|
|
/**
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: set by user.
|
|
*/
|
|
enum AVDiscard skip_loop_filter;
|
|
|
|
/**
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: set by user.
|
|
*/
|
|
enum AVDiscard skip_idct;
|
|
|
|
/**
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: set by user.
|
|
*/
|
|
enum AVDiscard skip_frame;
|
|
|
|
/**
|
|
*
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int bidir_refine;
|
|
|
|
/**
|
|
*
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int brd_scale;
|
|
|
|
/**
|
|
* constant rate factor - quality-based VBR - values ~correspond to qps
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
float crf;
|
|
|
|
/**
|
|
* constant quantization parameter rate control method
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int cqp;
|
|
|
|
/**
|
|
* minimum gop size
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int keyint_min;
|
|
|
|
/**
|
|
* number of reference frames
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int refs;
|
|
|
|
/**
|
|
* chroma qp offset from luma
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int chromaoffset;
|
|
|
|
/**
|
|
* influences how often b-frames are used
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int bframebias;
|
|
|
|
/**
|
|
* trellis RD quantization
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int trellis;
|
|
|
|
/**
|
|
* reduce fluctuations in qp (before curve compression)
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
float complexityblur;
|
|
|
|
/**
|
|
* in-loop deblocking filter alphac0 parameter
|
|
* alpha is in the range -6...6
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int deblockalpha;
|
|
|
|
/**
|
|
* in-loop deblocking filter beta parameter
|
|
* beta is in the range -6...6
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int deblockbeta;
|
|
|
|
/**
|
|
* macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int partitions;
|
|
#define X264_PART_I4X4 0x001 /* Analyse i4x4 */
|
|
#define X264_PART_I8X8 0x002 /* Analyse i8x8 (requires 8x8 transform) */
|
|
#define X264_PART_P8X8 0x010 /* Analyse p16x8, p8x16 and p8x8 */
|
|
#define X264_PART_P4X4 0x020 /* Analyse p8x4, p4x8, p4x4 */
|
|
#define X264_PART_B8X8 0x100 /* Analyse b16x8, b8x16 and b8x8 */
|
|
|
|
/**
|
|
* direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int directpred;
|
|
|
|
/**
|
|
* audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int cutoff;
|
|
|
|
/**
|
|
* multiplied by qscale for each frame and added to scene_change_score
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int scenechange_factor;
|
|
|
|
/**
|
|
*
|
|
* note: value depends upon the compare functin used for fullpel ME
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int mv0_threshold;
|
|
|
|
/**
|
|
* adjusts sensitivity of b_frame_strategy 1
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int b_sensitivity;
|
|
|
|
/**
|
|
* - encoding: set by user.
|
|
* - decoding: unused
|
|
*/
|
|
int compression_level;
|
|
#define FF_COMPRESSION_DEFAULT -1
|
|
|
|
/**
|
|
* sets whether to use LPC mode - used by FLAC encoder
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int use_lpc;
|
|
|
|
/**
|
|
* LPC coefficient precision - used by FLAC encoder
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int lpc_coeff_precision;
|
|
|
|
/**
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int min_prediction_order;
|
|
|
|
/**
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int max_prediction_order;
|
|
|
|
/**
|
|
* search method for selecting prediction order
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int prediction_order_method;
|
|
|
|
/**
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int min_partition_order;
|
|
|
|
/**
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int max_partition_order;
|
|
|
|
/**
|
|
* GOP timecode frame start number, in non drop frame format
|
|
* - encoding: set by user.
|
|
* - decoding: unused.
|
|
*/
|
|
int64_t timecode_frame_start;
|
|
} AVCodecContext;
|
|
|
|
/**
|
|
* AVCodec.
|
|
*/
|
|
typedef struct AVCodec {
|
|
const char *name;
|
|
enum CodecType type;
|
|
enum CodecID id;
|
|
int priv_data_size;
|
|
int (*init)(AVCodecContext *);
|
|
int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
|
|
int (*close)(AVCodecContext *);
|
|
int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
|
|
uint8_t *buf, int buf_size);
|
|
int capabilities;
|
|
struct AVCodec *next;
|
|
void (*flush)(AVCodecContext *);
|
|
const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
|
|
const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
|
|
} AVCodec;
|
|
|
|
/**
|
|
* four components are given, that's all.
|
|
* the last component is alpha
|
|
*/
|
|
typedef struct AVPicture {
|
|
uint8_t *data[4];
|
|
int linesize[4]; ///< number of bytes per line
|
|
} AVPicture;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
#define AVPALETTE_SIZE 1024
|
|
#define AVPALETTE_COUNT 256
|
|
typedef struct AVPaletteControl {
|
|
|
|
/* demuxer sets this to 1 to indicate the palette has changed;
|
|
* decoder resets to 0 */
|
|
int palette_changed;
|
|
|
|
/* 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 */
|
|
unsigned int palette[AVPALETTE_COUNT];
|
|
|
|
} AVPaletteControl attribute_deprecated;
|
|
|
|
typedef struct AVSubtitleRect {
|
|
uint16_t x;
|
|
uint16_t y;
|
|
uint16_t w;
|
|
uint16_t h;
|
|
uint16_t nb_colors;
|
|
int linesize;
|
|
uint32_t *rgba_palette;
|
|
uint8_t *bitmap;
|
|
} AVSubtitleRect;
|
|
|
|
typedef struct AVSubtitle {
|
|
uint16_t format; /* 0 = graphics */
|
|
uint32_t start_display_time; /* relative to packet pts, in ms */
|
|
uint32_t end_display_time; /* relative to packet pts, in ms */
|
|
uint32_t num_rects;
|
|
AVSubtitleRect *rects;
|
|
} AVSubtitle;
|
|
|
|
extern AVCodec ac3_encoder;
|
|
extern AVCodec amr_nb_encoder;
|
|
extern AVCodec amr_wb_encoder;
|
|
extern AVCodec asv1_encoder;
|
|
extern AVCodec asv2_encoder;
|
|
extern AVCodec dvvideo_encoder;
|
|
extern AVCodec faac_encoder;
|
|
extern AVCodec ffv1_encoder;
|
|
extern AVCodec ffvhuff_encoder;
|
|
extern AVCodec flac_encoder;
|
|
extern AVCodec flashsv_encoder;
|
|
extern AVCodec flv_encoder;
|
|
extern AVCodec gif_encoder;
|
|
extern AVCodec h261_encoder;
|
|
extern AVCodec h263_encoder;
|
|
extern AVCodec h263p_encoder;
|
|
extern AVCodec h264_encoder;
|
|
extern AVCodec huffyuv_encoder;
|
|
extern AVCodec jpegls_encoder;
|
|
extern AVCodec libgsm_encoder;
|
|
extern AVCodec ljpeg_encoder;
|
|
extern AVCodec mdec_encoder;
|
|
extern AVCodec mjpeg_encoder;
|
|
extern AVCodec mp2_encoder;
|
|
extern AVCodec mp3lame_encoder;
|
|
extern AVCodec mpeg1video_encoder;
|
|
extern AVCodec mpeg2video_encoder;
|
|
extern AVCodec mpeg4_encoder;
|
|
extern AVCodec msmpeg4v1_encoder;
|
|
extern AVCodec msmpeg4v2_encoder;
|
|
extern AVCodec msmpeg4v3_encoder;
|
|
extern AVCodec oggvorbis_encoder;
|
|
extern AVCodec pam_encoder;
|
|
extern AVCodec pbm_encoder;
|
|
extern AVCodec pgm_encoder;
|
|
extern AVCodec pgmyuv_encoder;
|
|
extern AVCodec png_encoder;
|
|
extern AVCodec ppm_encoder;
|
|
extern AVCodec rv10_encoder;
|
|
extern AVCodec rv20_encoder;
|
|
extern AVCodec snow_encoder;
|
|
extern AVCodec sonic_encoder;
|
|
extern AVCodec sonic_ls_encoder;
|
|
extern AVCodec svq1_encoder;
|
|
extern AVCodec vcr1_encoder;
|
|
extern AVCodec vorbis_encoder;
|
|
extern AVCodec wmv1_encoder;
|
|
extern AVCodec wmv2_encoder;
|
|
extern AVCodec x264_encoder;
|
|
extern AVCodec xvid_encoder;
|
|
extern AVCodec zlib_encoder;
|
|
extern AVCodec zmbv_encoder;
|
|
|
|
extern AVCodec aac_decoder;
|
|
extern AVCodec aasc_decoder;
|
|
extern AVCodec alac_decoder;
|
|
extern AVCodec amr_nb_decoder;
|
|
extern AVCodec amr_wb_decoder;
|
|
extern AVCodec asv1_decoder;
|
|
extern AVCodec asv2_decoder;
|
|
extern AVCodec avs_decoder;
|
|
extern AVCodec bmp_decoder;
|
|
extern AVCodec cavs_decoder;
|
|
extern AVCodec cinepak_decoder;
|
|
extern AVCodec cljr_decoder;
|
|
extern AVCodec cook_decoder;
|
|
extern AVCodec cscd_decoder;
|
|
extern AVCodec cyuv_decoder;
|
|
extern AVCodec dsicinaudio_decoder;
|
|
extern AVCodec dsicinvideo_decoder;
|
|
extern AVCodec dvvideo_decoder;
|
|
extern AVCodec eightbps_decoder;
|
|
extern AVCodec ffv1_decoder;
|
|
extern AVCodec ffvhuff_decoder;
|
|
extern AVCodec flac_decoder;
|
|
extern AVCodec flashsv_decoder;
|
|
extern AVCodec flic_decoder;
|
|
extern AVCodec flv_decoder;
|
|
extern AVCodec fourxm_decoder;
|
|
extern AVCodec fraps_decoder;
|
|
extern AVCodec gif_decoder;
|
|
extern AVCodec h261_decoder;
|
|
extern AVCodec h263_decoder;
|
|
extern AVCodec h263i_decoder;
|
|
extern AVCodec h264_decoder;
|
|
extern AVCodec huffyuv_decoder;
|
|
extern AVCodec idcin_decoder;
|
|
extern AVCodec imc_decoder;
|
|
extern AVCodec indeo2_decoder;
|
|
extern AVCodec indeo3_decoder;
|
|
extern AVCodec interplay_dpcm_decoder;
|
|
extern AVCodec interplay_video_decoder;
|
|
extern AVCodec kmvc_decoder;
|
|
extern AVCodec libgsm_decoder;
|
|
extern AVCodec loco_decoder;
|
|
extern AVCodec mace3_decoder;
|
|
extern AVCodec mace6_decoder;
|
|
extern AVCodec mdec_decoder;
|
|
extern AVCodec mjpeg_decoder;
|
|
extern AVCodec mjpegb_decoder;
|
|
extern AVCodec mmvideo_decoder;
|
|
extern AVCodec mp2_decoder;
|
|
extern AVCodec mp3_decoder;
|
|
extern AVCodec mp3adu_decoder;
|
|
extern AVCodec mp3on4_decoder;
|
|
extern AVCodec mpc7_decoder;
|
|
extern AVCodec mpeg1video_decoder;
|
|
extern AVCodec mpeg2video_decoder;
|
|
extern AVCodec mpeg4_decoder;
|
|
extern AVCodec mpeg4aac_decoder;
|
|
extern AVCodec mpeg_xvmc_decoder;
|
|
extern AVCodec mpegvideo_decoder;
|
|
extern AVCodec msmpeg4v1_decoder;
|
|
extern AVCodec msmpeg4v2_decoder;
|
|
extern AVCodec msmpeg4v3_decoder;
|
|
extern AVCodec msrle_decoder;
|
|
extern AVCodec msvideo1_decoder;
|
|
extern AVCodec mszh_decoder;
|
|
extern AVCodec nuv_decoder;
|
|
extern AVCodec oggvorbis_decoder;
|
|
extern AVCodec png_decoder;
|
|
extern AVCodec qdm2_decoder;
|
|
extern AVCodec qdraw_decoder;
|
|
extern AVCodec qpeg_decoder;
|
|
extern AVCodec qtrle_decoder;
|
|
extern AVCodec ra_144_decoder;
|
|
extern AVCodec ra_288_decoder;
|
|
extern AVCodec roq_decoder;
|
|
extern AVCodec roq_dpcm_decoder;
|
|
extern AVCodec rpza_decoder;
|
|
extern AVCodec rv10_decoder;
|
|
extern AVCodec rv20_decoder;
|
|
extern AVCodec rv30_decoder;
|
|
extern AVCodec rv40_decoder;
|
|
extern AVCodec shorten_decoder;
|
|
extern AVCodec smackaud_decoder;
|
|
extern AVCodec smacker_decoder;
|
|
extern AVCodec smc_decoder;
|
|
extern AVCodec snow_decoder;
|
|
extern AVCodec sol_dpcm_decoder;
|
|
extern AVCodec sonic_decoder;
|
|
extern AVCodec sp5x_decoder;
|
|
extern AVCodec svq1_decoder;
|
|
extern AVCodec svq3_decoder;
|
|
extern AVCodec targa_decoder;
|
|
extern AVCodec theora_decoder;
|
|
extern AVCodec tiertexseqvideo_decoder;
|
|
extern AVCodec tiff_decoder;
|
|
extern AVCodec truemotion1_decoder;
|
|
extern AVCodec truemotion2_decoder;
|
|
extern AVCodec truespeech_decoder;
|
|
extern AVCodec tscc_decoder;
|
|
extern AVCodec tta_decoder;
|
|
extern AVCodec ulti_decoder;
|
|
extern AVCodec vc1_decoder;
|
|
extern AVCodec vcr1_decoder;
|
|
extern AVCodec vmdaudio_decoder;
|
|
extern AVCodec vmdvideo_decoder;
|
|
extern AVCodec vmnc_decoder;
|
|
extern AVCodec vorbis_decoder;
|
|
extern AVCodec vp3_decoder;
|
|
extern AVCodec vp5_decoder;
|
|
extern AVCodec vp6_decoder;
|
|
extern AVCodec vp6f_decoder;
|
|
extern AVCodec vqa_decoder;
|
|
extern AVCodec wavpack_decoder;
|
|
extern AVCodec wmav1_decoder;
|
|
extern AVCodec wmav2_decoder;
|
|
extern AVCodec wmv1_decoder;
|
|
extern AVCodec wmv2_decoder;
|
|
extern AVCodec wmv3_decoder;
|
|
extern AVCodec wnv1_decoder;
|
|
extern AVCodec ws_snd1_decoder;
|
|
extern AVCodec xan_dpcm_decoder;
|
|
extern AVCodec xan_wc3_decoder;
|
|
extern AVCodec xl_decoder;
|
|
extern AVCodec zlib_decoder;
|
|
extern AVCodec zmbv_decoder;
|
|
|
|
/* pcm codecs */
|
|
#define PCM_CODEC(id, name) \
|
|
extern AVCodec name ## _decoder; \
|
|
extern AVCodec name ## _encoder
|
|
|
|
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
|
|
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
|
|
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
|
|
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
|
|
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
|
|
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
|
|
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
|
|
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
|
|
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
|
|
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
|
|
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
|
|
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
|
|
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
|
|
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
|
|
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
|
|
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
|
|
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
|
|
|
|
/* adpcm codecs */
|
|
|
|
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
|
|
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
|
|
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
|
|
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
|
|
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
|
|
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
|
|
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
|
|
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
|
|
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
|
|
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
|
|
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
|
|
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
|
|
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
|
|
|
|
#undef PCM_CODEC
|
|
|
|
/* dummy raw video codec */
|
|
extern AVCodec rawvideo_decoder;
|
|
extern AVCodec rawvideo_encoder;
|
|
|
|
/* the following codecs use external GPL libs */
|
|
extern AVCodec ac3_decoder;
|
|
extern AVCodec dts_decoder;
|
|
|
|
/* subtitles */
|
|
extern AVCodec dvbsub_decoder;
|
|
extern AVCodec dvbsub_encoder;
|
|
extern AVCodec dvdsub_decoder;
|
|
extern AVCodec dvdsub_encoder;
|
|
|
|
/* resample.c */
|
|
|
|
struct ReSampleContext;
|
|
struct AVResampleContext;
|
|
|
|
typedef struct ReSampleContext ReSampleContext;
|
|
|
|
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
|
|
int output_rate, int input_rate);
|
|
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
|
|
void audio_resample_close(ReSampleContext *s);
|
|
|
|
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
|
|
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
|
|
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
|
|
void av_resample_close(struct AVResampleContext *c);
|
|
|
|
/* YUV420 format is assumed ! */
|
|
|
|
struct ImgReSampleContext;
|
|
|
|
typedef struct ImgReSampleContext ImgReSampleContext;
|
|
|
|
ImgReSampleContext *img_resample_init(int output_width, int output_height,
|
|
int input_width, int input_height);
|
|
|
|
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
|
|
int iwidth, int iheight,
|
|
int topBand, int bottomBand,
|
|
int leftBand, int rightBand,
|
|
int padtop, int padbottom,
|
|
int padleft, int padright);
|
|
|
|
|
|
void img_resample(ImgReSampleContext *s,
|
|
AVPicture *output, const AVPicture *input);
|
|
|
|
void img_resample_close(ImgReSampleContext *s);
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
|
|
|
|
/* Free a picture previously allocated by avpicture_alloc. */
|
|
void avpicture_free(AVPicture *picture);
|
|
|
|
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
|
|
int pix_fmt, int width, int height);
|
|
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
|
|
unsigned char *dest, int dest_size);
|
|
int avpicture_get_size(int pix_fmt, int width, int height);
|
|
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
|
|
const char *avcodec_get_pix_fmt_name(int pix_fmt);
|
|
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
|
|
enum PixelFormat avcodec_get_pix_fmt(const char* name);
|
|
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
|
|
|
|
#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
|
|
#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
|
|
#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
|
|
#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
|
|
#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
|
|
#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
|
|
|
|
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
|
|
int has_alpha);
|
|
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
|
|
int has_alpha, int *loss_ptr);
|
|
|
|
#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
|
|
#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
|
|
int img_get_alpha_info(const AVPicture *src,
|
|
int pix_fmt, int width, int height);
|
|
|
|
/* convert among pixel formats */
|
|
int img_convert(AVPicture *dst, int dst_pix_fmt,
|
|
const AVPicture *src, int pix_fmt,
|
|
int width, int height);
|
|
|
|
/* deinterlace a picture */
|
|
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
|
|
int pix_fmt, int width, int height);
|
|
|
|
/* external high level API */
|
|
|
|
extern AVCodec *first_avcodec;
|
|
|
|
/* returns LIBAVCODEC_VERSION_INT constant */
|
|
unsigned avcodec_version(void);
|
|
/* returns LIBAVCODEC_BUILD constant */
|
|
unsigned avcodec_build(void);
|
|
void avcodec_init(void);
|
|
|
|
void register_avcodec(AVCodec *format);
|
|
AVCodec *avcodec_find_encoder(enum CodecID id);
|
|
AVCodec *avcodec_find_encoder_by_name(const char *name);
|
|
AVCodec *avcodec_find_decoder(enum CodecID id);
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name);
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
|
|
|
|
void avcodec_get_context_defaults(AVCodecContext *s);
|
|
AVCodecContext *avcodec_alloc_context(void);
|
|
void avcodec_get_frame_defaults(AVFrame *pic);
|
|
AVFrame *avcodec_alloc_frame(void);
|
|
|
|
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
|
|
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
|
|
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
|
|
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
|
|
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
|
|
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
|
|
|
|
int avcodec_thread_init(AVCodecContext *s, int thread_count);
|
|
void avcodec_thread_free(AVCodecContext *s);
|
|
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
|
|
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
|
|
//FIXME func typedef
|
|
|
|
/**
|
|
* opens / inits the AVCodecContext.
|
|
* not thread save!
|
|
*/
|
|
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
|
|
|
|
|
|
attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
|
|
int *frame_size_ptr,
|
|
uint8_t *buf, int buf_size);
|
|
/**
|
|
* 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 (you MUST set this to the allocated size before calling avcodec_decode_audio2()), 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.
|
|
*/
|
|
int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
|
|
int *frame_size_ptr,
|
|
uint8_t *buf, int buf_size);
|
|
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
|
|
int *got_picture_ptr,
|
|
uint8_t *buf, int buf_size);
|
|
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
|
|
int *got_sub_ptr,
|
|
const uint8_t *buf, int buf_size);
|
|
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
|
|
int *data_size_ptr,
|
|
uint8_t *buf, int buf_size);
|
|
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const short *samples);
|
|
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVFrame *pict);
|
|
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
|
|
const AVSubtitle *sub);
|
|
|
|
int avcodec_close(AVCodecContext *avctx);
|
|
|
|
void avcodec_register_all(void);
|
|
|
|
void avcodec_flush_buffers(AVCodecContext *avctx);
|
|
|
|
void avcodec_default_free_buffers(AVCodecContext *s);
|
|
|
|
/* misc usefull functions */
|
|
|
|
/**
|
|
* returns a single letter to describe the picture type
|
|
*/
|
|
char av_get_pict_type_char(int pict_type);
|
|
|
|
/**
|
|
* returns codec bits per sample
|
|
*/
|
|
int av_get_bits_per_sample(enum CodecID codec_id);
|
|
|
|
/* frame parsing */
|
|
typedef struct AVCodecParserContext {
|
|
void *priv_data;
|
|
struct AVCodecParser *parser;
|
|
int64_t frame_offset; /* offset of the current frame */
|
|
int64_t cur_offset; /* current offset
|
|
(incremented by each av_parser_parse()) */
|
|
int64_t last_frame_offset; /* offset of the last frame */
|
|
/* video info */
|
|
int pict_type; /* XXX: put it back in AVCodecContext */
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int repeat_pict; /* XXX: put it back in AVCodecContext */
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int64_t pts; /* pts of the current frame */
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int64_t dts; /* dts of the current frame */
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|
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/* private data */
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|
int64_t last_pts;
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int64_t last_dts;
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|
int fetch_timestamp;
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|
|
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#define AV_PARSER_PTS_NB 4
|
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int cur_frame_start_index;
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|
int64_t cur_frame_offset[AV_PARSER_PTS_NB];
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|
int64_t cur_frame_pts[AV_PARSER_PTS_NB];
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|
int64_t cur_frame_dts[AV_PARSER_PTS_NB];
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|
|
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int flags;
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|
#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
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} AVCodecParserContext;
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|
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|
typedef struct AVCodecParser {
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int codec_ids[5]; /* several codec IDs are permitted */
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int priv_data_size;
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int (*parser_init)(AVCodecParserContext *s);
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int (*parser_parse)(AVCodecParserContext *s,
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AVCodecContext *avctx,
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uint8_t **poutbuf, int *poutbuf_size,
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|
const uint8_t *buf, int buf_size);
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void (*parser_close)(AVCodecParserContext *s);
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|
int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
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|
struct AVCodecParser *next;
|
|
} AVCodecParser;
|
|
|
|
extern AVCodecParser *av_first_parser;
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|
|
|
void av_register_codec_parser(AVCodecParser *parser);
|
|
AVCodecParserContext *av_parser_init(int codec_id);
|
|
int av_parser_parse(AVCodecParserContext *s,
|
|
AVCodecContext *avctx,
|
|
uint8_t **poutbuf, int *poutbuf_size,
|
|
const uint8_t *buf, int buf_size,
|
|
int64_t pts, int64_t dts);
|
|
int av_parser_change(AVCodecParserContext *s,
|
|
AVCodecContext *avctx,
|
|
uint8_t **poutbuf, int *poutbuf_size,
|
|
const uint8_t *buf, int buf_size, int keyframe);
|
|
void av_parser_close(AVCodecParserContext *s);
|
|
|
|
extern AVCodecParser aac_parser;
|
|
extern AVCodecParser ac3_parser;
|
|
extern AVCodecParser cavsvideo_parser;
|
|
extern AVCodecParser dvbsub_parser;
|
|
extern AVCodecParser dvdsub_parser;
|
|
extern AVCodecParser h261_parser;
|
|
extern AVCodecParser h263_parser;
|
|
extern AVCodecParser h264_parser;
|
|
extern AVCodecParser mjpeg_parser;
|
|
extern AVCodecParser mpeg4video_parser;
|
|
extern AVCodecParser mpegaudio_parser;
|
|
extern AVCodecParser mpegvideo_parser;
|
|
extern AVCodecParser pnm_parser;
|
|
|
|
|
|
typedef struct AVBitStreamFilterContext {
|
|
void *priv_data;
|
|
struct AVBitStreamFilter *filter;
|
|
AVCodecParserContext *parser;
|
|
struct AVBitStreamFilterContext *next;
|
|
} AVBitStreamFilterContext;
|
|
|
|
|
|
typedef struct AVBitStreamFilter {
|
|
const char *name;
|
|
int priv_data_size;
|
|
int (*filter)(AVBitStreamFilterContext *bsfc,
|
|
AVCodecContext *avctx, const char *args,
|
|
uint8_t **poutbuf, int *poutbuf_size,
|
|
const uint8_t *buf, int buf_size, int keyframe);
|
|
struct AVBitStreamFilter *next;
|
|
} AVBitStreamFilter;
|
|
|
|
extern AVBitStreamFilter *av_first_bitstream_filter;
|
|
|
|
void av_register_bitstream_filter(AVBitStreamFilter *bsf);
|
|
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
|
|
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
|
|
AVCodecContext *avctx, const char *args,
|
|
uint8_t **poutbuf, int *poutbuf_size,
|
|
const uint8_t *buf, int buf_size, int keyframe);
|
|
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
|
|
|
|
extern AVBitStreamFilter dump_extradata_bsf;
|
|
extern AVBitStreamFilter remove_extradata_bsf;
|
|
extern AVBitStreamFilter noise_bsf;
|
|
extern AVBitStreamFilter mp3_header_compress_bsf;
|
|
extern AVBitStreamFilter mp3_header_decompress_bsf;
|
|
extern AVBitStreamFilter mjpega_dump_header_bsf;
|
|
|
|
|
|
/* memory */
|
|
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
|
|
/* for static data only */
|
|
/* call av_free_static to release all staticaly allocated tables */
|
|
void av_free_static(void);
|
|
void *av_mallocz_static(unsigned int size);
|
|
void *av_realloc_static(void *ptr, unsigned int size);
|
|
|
|
void img_copy(AVPicture *dst, const AVPicture *src,
|
|
int pix_fmt, int width, int height);
|
|
|
|
int img_crop(AVPicture *dst, const AVPicture *src,
|
|
int pix_fmt, int top_band, int left_band);
|
|
|
|
int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
|
|
int padtop, int padbottom, int padleft, int padright, int *color);
|
|
|
|
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* AVCODEC_H */
|