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/*
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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)+(31<<8)+0)
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#define LIBAVCODEC_VERSION      51.31.0
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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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    CODEC_ID_MLP,
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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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/**
401
 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
402
 * if this is not set, the codec is guranteed to never be feeded with NULL data
403
 */
404
#define CODEC_CAP_DELAY           0x0020
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/**
406
 * Codec can be fed a final frame with a smaller size.
407
 * This can be used to prevent truncation of the last audio samples.
408
 */
409
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
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//the following defines may change, don't expect compatibility if you use them
412
#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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/**
436
 * Pan Scan area.
437
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
438
 */
439
typedef struct AVPanScan{
440
    /**
441
     * id.
442
     * - encoding: set by user.
443
     * - decoding: set by lavc
444
     */
445
    int id;
446

    
447
    /**
448
     * width and height in 1/16 pel
449
     * - encoding: set by user.
450
     * - decoding: set by lavc
451
     */
452
    int width;
453
    int height;
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455
    /**
456
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
457
     * - encoding: set by user.
458
     * - decoding: set by lavc
459
     */
460
    int16_t position[3][2];
461
}AVPanScan;
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463
#define FF_COMMON_FRAME \
464
    /**\
465
     * pointer to the picture planes.\
466
     * this might be different from the first allocated byte\
467
     * - encoding: \
468
     * - decoding: \
469
     */\
470
    uint8_t *data[4];\
471
    int linesize[4];\
472
    /**\
473
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
474
     * this isn't used by lavc unless the default get/release_buffer() is used\
475
     * - encoding: \
476
     * - decoding: \
477
     */\
478
    uint8_t *base[4];\
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    /**\
480
     * 1 -> keyframe, 0-> not\
481
     * - encoding: set by lavc\
482
     * - decoding: set by lavc\
483
     */\
484
    int key_frame;\
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\
486
    /**\
487
     * picture type of the frame, see ?_TYPE below.\
488
     * - encoding: set by lavc for coded_picture (and set by user for input)\
489
     * - decoding: set by lavc\
490
     */\
491
    int pict_type;\
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\
493
    /**\
494
     * presentation timestamp in time_base units (time when frame should be shown to user)\
495
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
496
     * - encoding: MUST be set by user\
497
     * - decoding: set by lavc\
498
     */\
499
    int64_t pts;\
500
\
501
    /**\
502
     * picture number in bitstream order.\
503
     * - encoding: set by\
504
     * - decoding: set by lavc\
505
     */\
506
    int coded_picture_number;\
507
    /**\
508
     * picture number in display order.\
509
     * - encoding: set by\
510
     * - decoding: set by lavc\
511
     */\
512
    int display_picture_number;\
513
\
514
    /**\
515
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
516
     * - encoding: set by lavc for coded_picture (and set by user for input)\
517
     * - decoding: set by lavc\
518
     */\
519
    int quality; \
520
\
521
    /**\
522
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
523
     * set to INT_MAX if the buffer has not been used yet \
524
     * - encoding: unused\
525
     * - decoding: MUST be set by get_buffer()\
526
     */\
527
    int age;\
528
\
529
    /**\
530
     * is this picture used as reference\
531
     * - encoding: unused\
532
     * - decoding: set by lavc (before get_buffer() call))\
533
     */\
534
    int reference;\
535
\
536
    /**\
537
     * QP table\
538
     * - encoding: unused\
539
     * - decoding: set by lavc\
540
     */\
541
    int8_t *qscale_table;\
542
    /**\
543
     * QP store stride\
544
     * - encoding: unused\
545
     * - decoding: set by lavc\
546
     */\
547
    int qstride;\
548
\
549
    /**\
550
     * mbskip_table[mb]>=1 if MB didnt change\
551
     * stride= mb_width = (width+15)>>4\
552
     * - encoding: unused\
553
     * - decoding: set by lavc\
554
     */\
555
    uint8_t *mbskip_table;\
556
\
557
    /**\
558
     * Motion vector table.\
559
     * @code\
560
     * example:\
561
     * int mv_sample_log2= 4 - motion_subsample_log2;\
562
     * int mb_width= (width+15)>>4;\
563
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
564
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
565
     * @endcode\
566
     * - encoding: set by user\
567
     * - decoding: set by lavc\
568
     */\
569
    int16_t (*motion_val[2])[2];\
570
\
571
    /**\
572
     * Macroblock type table\
573
     * mb_type_base + mb_width + 2\
574
     * - encoding: set by user\
575
     * - decoding: set by lavc\
576
     */\
577
    uint32_t *mb_type;\
578
\
579
    /**\
580
     * log2 of the size of the block which a single vector in motion_val represents: \
581
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
582
     * - encoding: unused\
583
     * - decoding: set by lavc\
584
     */\
585
    uint8_t motion_subsample_log2;\
586
\
587
    /**\
588
     * for some private data of the user\
589
     * - encoding: unused\
590
     * - decoding: set by user\
591
     */\
592
    void *opaque;\
593
\
594
    /**\
595
     * error\
596
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
597
     * - decoding: unused\
598
     */\
599
    uint64_t error[4];\
600
\
601
    /**\
602
     * type of the buffer (to keep track of who has to dealloc data[*])\
603
     * - encoding: set by the one who allocs it\
604
     * - decoding: set by the one who allocs it\
605
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
606
     */\
607
    int type;\
608
    \
609
    /**\
610
     * when decoding, this signal how much the picture must be delayed.\
611
     * extra_delay = repeat_pict / (2*fps)\
612
     * - encoding: unused\
613
     * - decoding: set by lavc\
614
     */\
615
    int repeat_pict;\
616
    \
617
    /**\
618
     * \
619
     */\
620
    int qscale_type;\
621
    \
622
    /**\
623
     * The content of the picture is interlaced.\
624
     * - encoding: set by user\
625
     * - decoding: set by lavc (default 0)\
626
     */\
627
    int interlaced_frame;\
628
    \
629
    /**\
630
     * if the content is interlaced, is top field displayed first.\
631
     * - encoding: set by user\
632
     * - decoding: set by lavc\
633
     */\
634
    int top_field_first;\
635
    \
636
    /**\
637
     * Pan scan.\
638
     * - encoding: set by user\
639
     * - decoding: set by lavc\
640
     */\
641
    AVPanScan *pan_scan;\
642
    \
643
    /**\
644
     * tell user application that palette has changed from previous frame.\
645
     * - encoding: ??? (no palette-enabled encoder yet)\
646
     * - decoding: set by lavc (default 0)\
647
     */\
648
    int palette_has_changed;\
649
    \
650
    /**\
651
     * Codec suggestion on buffer type if != 0\
652
     * - encoding: unused\
653
     * - decoding: set by lavc (before get_buffer() call))\
654
     */\
655
    int buffer_hints;\
656
\
657
    /**\
658
     * DCT coeffitients\
659
     * - encoding: unused\
660
     * - decoding: set by lavc\
661
     */\
662
    short *dct_coeff;\
663
\
664
    /**\
665
     * Motion referece frame index\
666
     * - encoding: set by user\
667
     * - decoding: set by lavc\
668
     */\
669
    int8_t *ref_index[2];
670

    
671
#define FF_QSCALE_TYPE_MPEG1 0
672
#define FF_QSCALE_TYPE_MPEG2 1
673
#define FF_QSCALE_TYPE_H264  2
674

    
675
#define FF_BUFFER_TYPE_INTERNAL 1
676
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
677
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
678
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
679

    
680

    
681
#define FF_I_TYPE 1 // Intra
682
#define FF_P_TYPE 2 // Predicted
683
#define FF_B_TYPE 3 // Bi-dir predicted
684
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
685
#define FF_SI_TYPE 5
686
#define FF_SP_TYPE 6
687

    
688
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
689
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
690
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
691
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
692

    
693
/**
694
 * Audio Video Frame.
695
 */
696
typedef struct AVFrame {
697
    FF_COMMON_FRAME
698
} AVFrame;
699

    
700
#define DEFAULT_FRAME_RATE_BASE 1001000
701

    
702
/**
703
 * main external api structure.
704
 */
705
typedef struct AVCodecContext {
706
    /**
707
     * Info on struct for av_log
708
     * - set by avcodec_alloc_context
709
     */
710
    AVClass *av_class;
711
    /**
712
     * the average bitrate.
713
     * - encoding: set by user. unused for constant quantizer encoding
714
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
715
     */
716
    int bit_rate;
717

    
718
    /**
719
     * number of bits the bitstream is allowed to diverge from the reference.
720
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
721
     * - encoding: set by user. unused for constant quantizer encoding
722
     * - decoding: unused
723
     */
724
    int bit_rate_tolerance;
725

    
726
    /**
727
     * CODEC_FLAG_*.
728
     * - encoding: set by user.
729
     * - decoding: set by user.
730
     */
731
    int flags;
732

    
733
    /**
734
     * some codecs needs additionnal format info. It is stored here
735
     * - encoding: set by user.
736
     * - decoding: set by lavc. (FIXME is this ok?)
737
     */
738
    int sub_id;
739

    
740
    /**
741
     * motion estimation algorithm used for video coding.
742
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
743
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
744
     * - encoding: MUST be set by user.
745
     * - decoding: unused
746
     */
747
    int me_method;
748

    
749
    /**
750
     * some codecs need / can use extra-data like huffman tables.
751
     * mjpeg: huffman tables
752
     * rv10: additional flags
753
     * mpeg4: global headers (they can be in the bitstream or here)
754
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
755
     * then extradata_size to avoid prolems if its read with the bitstream reader
756
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
757
     * - encoding: set/allocated/freed by lavc.
758
     * - decoding: set/allocated/freed by user.
759
     */
760
    uint8_t *extradata;
761
    int extradata_size;
762

    
763
    /**
764
     * this is the fundamental unit of time (in seconds) in terms
765
     * of which frame timestamps are represented. for fixed-fps content,
766
     * timebase should be 1/framerate and timestamp increments should be
767
     * identically 1.
768
     * - encoding: MUST be set by user
769
     * - decoding: set by lavc.
770
     */
771
    AVRational time_base;
772

    
773
    /* video only */
774
    /**
775
     * picture width / height.
776
     * - encoding: MUST be set by user.
777
     * - decoding: set by lavc.
778
     * Note, for compatibility its possible to set this instead of
779
     * coded_width/height before decoding
780
     */
781
    int width, height;
782

    
783
#define FF_ASPECT_EXTENDED 15
784

    
785
    /**
786
     * the number of pictures in a group of pitures, or 0 for intra_only.
787
     * - encoding: set by user.
788
     * - decoding: unused
789
     */
790
    int gop_size;
791

    
792
    /**
793
     * pixel format, see PIX_FMT_xxx.
794
     * - encoding: set by user.
795
     * - decoding: set by lavc.
796
     */
797
    enum PixelFormat pix_fmt;
798

    
799
    /**
800
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
801
     * has to read frames at native frame rate.
802
     * - encoding: set by user.
803
     * - decoding: unused.
804
     */
805
    int rate_emu;
806

    
807
    /**
808
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
809
     * decoder to draw an horizontal band. It improve cache usage. Not
810
     * all codecs can do that. You must check the codec capabilities
811
     * before
812
     * - encoding: unused
813
     * - decoding: set by user.
814
     * @param height the height of the slice
815
     * @param y the y position of the slice
816
     * @param type 1->top field, 2->bottom field, 3->frame
817
     * @param offset offset into the AVFrame.data from which the slice should be read
818
     */
819
    void (*draw_horiz_band)(struct AVCodecContext *s,
820
                            const AVFrame *src, int offset[4],
821
                            int y, int type, int height);
822

    
823
    /* audio only */
824
    int sample_rate; ///< samples per sec
825
    int channels;
826

    
827
    /**
828
     * audio sample format.
829
     * - encoding: set by user.
830
     * - decoding: set by lavc.
831
     */
832
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
833

    
834
    /* the following data should not be initialized */
835
    /**
836
     * samples per packet. initialized when calling 'init'
837
     */
838
    int frame_size;
839
    int frame_number;   ///< audio or video frame number
840
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
841

    
842
    /**
843
     * number of frames the decoded output will be delayed relative to
844
     * the encoded input.
845
     * - encoding: set by lavc.
846
     * - decoding: unused
847
     */
848
    int delay;
849

    
850
    /* - encoding parameters */
851
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
852
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
853

    
854
    /**
855
     * minimum quantizer.
856
     * - encoding: set by user.
857
     * - decoding: unused
858
     */
859
    int qmin;
860

    
861
    /**
862
     * maximum quantizer.
863
     * - encoding: set by user.
864
     * - decoding: unused
865
     */
866
    int qmax;
867

    
868
    /**
869
     * maximum quantizer difference between frames.
870
     * - encoding: set by user.
871
     * - decoding: unused
872
     */
873
    int max_qdiff;
874

    
875
    /**
876
     * maximum number of b frames between non b frames.
877
     * note: the output will be delayed by max_b_frames+1 relative to the input
878
     * - encoding: set by user.
879
     * - decoding: unused
880
     */
881
    int max_b_frames;
882

    
883
    /**
884
     * qscale factor between ip and b frames.
885
     * - encoding: set by user.
886
     * - decoding: unused
887
     */
888
    float b_quant_factor;
889

    
890
    /** obsolete FIXME remove */
891
    int rc_strategy;
892
#define FF_RC_STRATEGY_XVID 1
893

    
894
    int b_frame_strategy;
895

    
896
    /**
897
     * hurry up amount.
898
     * deprecated in favor of skip_idct and skip_frame
899
     * - encoding: unused
900
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
901
     */
902
    int hurry_up;
903

    
904
    struct AVCodec *codec;
905

    
906
    void *priv_data;
907

    
908
    /* unused, FIXME remove*/
909
    int rtp_mode;
910

    
911
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
912
                            /* do it's best to deliver a chunk with size    */
913
                            /* below rtp_payload_size, the chunk will start */
914
                            /* with a start code on some codecs like H.263  */
915
                            /* This doesn't take account of any particular  */
916
                            /* headers inside the transmited RTP payload    */
917

    
918

    
919
    /* The RTP callback: This function is called   */
920
    /* every time the encoder has a packet to send */
921
    /* Depends on the encoder if the data starts   */
922
    /* with a Start Code (it should) H.263 does.   */
923
    /* mb_nb contains the number of macroblocks    */
924
    /* encoded in the RTP payload                  */
925
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
926

    
927
    /* statistics, used for 2-pass encoding */
928
    int mv_bits;
929
    int header_bits;
930
    int i_tex_bits;
931
    int p_tex_bits;
932
    int i_count;
933
    int p_count;
934
    int skip_count;
935
    int misc_bits;
936

    
937
    /**
938
     * number of bits used for the previously encoded frame.
939
     * - encoding: set by lavc
940
     * - decoding: unused
941
     */
942
    int frame_bits;
943

    
944
    /**
945
     * private data of the user, can be used to carry app specific stuff.
946
     * - encoding: set by user
947
     * - decoding: set by user
948
     */
949
    void *opaque;
950

    
951
    char codec_name[32];
952
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
953
    enum CodecID codec_id; /* see CODEC_ID_xxx */
954

    
955
    /**
956
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
957
     * this is used to workaround some encoder bugs
958
     * - encoding: set by user, if not then the default based on codec_id will be used
959
     * - decoding: set by user, will be converted to upper case by lavc during init
960
     */
961
    unsigned int codec_tag;
962

    
963
    /**
964
     * workaround bugs in encoders which sometimes cannot be detected automatically.
965
     * - encoding: set by user
966
     * - decoding: set by user
967
     */
968
    int workaround_bugs;
969
#define FF_BUG_AUTODETECT       1  ///< autodetection
970
#define FF_BUG_OLD_MSMPEG4      2
971
#define FF_BUG_XVID_ILACE       4
972
#define FF_BUG_UMP4             8
973
#define FF_BUG_NO_PADDING       16
974
#define FF_BUG_AMV              32
975
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
976
#define FF_BUG_QPEL_CHROMA      64
977
#define FF_BUG_STD_QPEL         128
978
#define FF_BUG_QPEL_CHROMA2     256
979
#define FF_BUG_DIRECT_BLOCKSIZE 512
980
#define FF_BUG_EDGE             1024
981
#define FF_BUG_HPEL_CHROMA      2048
982
#define FF_BUG_DC_CLIP          4096
983
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
984
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
985

    
986
    /**
987
     * luma single coeff elimination threshold.
988
     * - encoding: set by user
989
     * - decoding: unused
990
     */
991
    int luma_elim_threshold;
992

    
993
    /**
994
     * chroma single coeff elimination threshold.
995
     * - encoding: set by user
996
     * - decoding: unused
997
     */
998
    int chroma_elim_threshold;
999

    
1000
    /**
1001
     * strictly follow the std (MPEG4, ...).
1002
     * - encoding: set by user
1003
     * - decoding: unused
1004
     */
1005
    int strict_std_compliance;
1006
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
1007
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
1008
#define FF_COMPLIANCE_NORMAL        0
1009
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
1010
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
1011

    
1012
    /**
1013
     * qscale offset between ip and b frames.
1014
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1015
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1016
     * - encoding: set by user.
1017
     * - decoding: unused
1018
     */
1019
    float b_quant_offset;
1020

    
1021
    /**
1022
     * error resilience higher values will detect more errors but may missdetect
1023
     * some more or less valid parts as errors.
1024
     * - encoding: unused
1025
     * - decoding: set by user
1026
     */
1027
    int error_resilience;
1028
#define FF_ER_CAREFUL         1
1029
#define FF_ER_COMPLIANT       2
1030
#define FF_ER_AGGRESSIVE      3
1031
#define FF_ER_VERY_AGGRESSIVE 4
1032

    
1033
    /**
1034
     * called at the beginning of each frame to get a buffer for it.
1035
     * if pic.reference is set then the frame will be read later by lavc
1036
     * avcodec_align_dimensions() should be used to find the required width and
1037
     * height, as they normally need to be rounded up to the next multiple of 16
1038
     * - encoding: unused
1039
     * - decoding: set by lavc, user can override
1040
     */
1041
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1042

    
1043
    /**
1044
     * called to release buffers which where allocated with get_buffer.
1045
     * a released buffer can be reused in get_buffer()
1046
     * pic.data[*] must be set to NULL
1047
     * - encoding: unused
1048
     * - decoding: set by lavc, user can override
1049
     */
1050
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1051

    
1052
    /**
1053
     * if 1 the stream has a 1 frame delay during decoding.
1054
     * - encoding: set by lavc
1055
     * - decoding: set by lavc
1056
     */
1057
    int has_b_frames;
1058

    
1059
    /**
1060
     * number of bytes per packet if constant and known or 0
1061
     * used by some WAV based audio codecs
1062
     */
1063
    int block_align;
1064

    
1065
    int parse_only; /* - decoding only: if true, only parsing is done
1066
                       (function avcodec_parse_frame()). The frame
1067
                       data is returned. Only MPEG codecs support this now. */
1068

    
1069
    /**
1070
     * 0-> h263 quant 1-> mpeg quant.
1071
     * - encoding: set by user.
1072
     * - decoding: unused
1073
     */
1074
    int mpeg_quant;
1075

    
1076
    /**
1077
     * pass1 encoding statistics output buffer.
1078
     * - encoding: set by lavc
1079
     * - decoding: unused
1080
     */
1081
    char *stats_out;
1082

    
1083
    /**
1084
     * pass2 encoding statistics input buffer.
1085
     * concatenated stuff from stats_out of pass1 should be placed here
1086
     * - encoding: allocated/set/freed by user
1087
     * - decoding: unused
1088
     */
1089
    char *stats_in;
1090

    
1091
    /**
1092
     * ratecontrol qmin qmax limiting method.
1093
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1094
     * - encoding: set by user.
1095
     * - decoding: unused
1096
     */
1097
    float rc_qsquish;
1098

    
1099
    float rc_qmod_amp;
1100
    int rc_qmod_freq;
1101

    
1102
    /**
1103
     * ratecontrol override, see RcOverride.
1104
     * - encoding: allocated/set/freed by user.
1105
     * - decoding: unused
1106
     */
1107
    RcOverride *rc_override;
1108
    int rc_override_count;
1109

    
1110
    /**
1111
     * rate control equation.
1112
     * - encoding: set by user
1113
     * - decoding: unused
1114
     */
1115
    char *rc_eq;
1116

    
1117
    /**
1118
     * maximum bitrate.
1119
     * - encoding: set by user.
1120
     * - decoding: unused
1121
     */
1122
    int rc_max_rate;
1123

    
1124
    /**
1125
     * minimum bitrate.
1126
     * - encoding: set by user.
1127
     * - decoding: unused
1128
     */
1129
    int rc_min_rate;
1130

    
1131
    /**
1132
     * decoder bitstream buffer size.
1133
     * - encoding: set by user.
1134
     * - decoding: unused
1135
     */
1136
    int rc_buffer_size;
1137
    float rc_buffer_aggressivity;
1138

    
1139
    /**
1140
     * qscale factor between p and i frames.
1141
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1142
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1143
     * - encoding: set by user.
1144
     * - decoding: unused
1145
     */
1146
    float i_quant_factor;
1147

    
1148
    /**
1149
     * qscale offset between p and i frames.
1150
     * - encoding: set by user.
1151
     * - decoding: unused
1152
     */
1153
    float i_quant_offset;
1154

    
1155
    /**
1156
     * initial complexity for pass1 ratecontrol.
1157
     * - encoding: set by user.
1158
     * - decoding: unused
1159
     */
1160
    float rc_initial_cplx;
1161

    
1162
    /**
1163
     * dct algorithm, see FF_DCT_* below.
1164
     * - encoding: set by user
1165
     * - decoding: unused
1166
     */
1167
    int dct_algo;
1168
#define FF_DCT_AUTO    0
1169
#define FF_DCT_FASTINT 1
1170
#define FF_DCT_INT     2
1171
#define FF_DCT_MMX     3
1172
#define FF_DCT_MLIB    4
1173
#define FF_DCT_ALTIVEC 5
1174
#define FF_DCT_FAAN    6
1175

    
1176
    /**
1177
     * luminance masking (0-> disabled).
1178
     * - encoding: set by user
1179
     * - decoding: unused
1180
     */
1181
    float lumi_masking;
1182

    
1183
    /**
1184
     * temporary complexity masking (0-> disabled).
1185
     * - encoding: set by user
1186
     * - decoding: unused
1187
     */
1188
    float temporal_cplx_masking;
1189

    
1190
    /**
1191
     * spatial complexity masking (0-> disabled).
1192
     * - encoding: set by user
1193
     * - decoding: unused
1194
     */
1195
    float spatial_cplx_masking;
1196

    
1197
    /**
1198
     * p block masking (0-> disabled).
1199
     * - encoding: set by user
1200
     * - decoding: unused
1201
     */
1202
    float p_masking;
1203

    
1204
    /**
1205
     * darkness masking (0-> disabled).
1206
     * - encoding: set by user
1207
     * - decoding: unused
1208
     */
1209
    float dark_masking;
1210

    
1211

    
1212
    /* for binary compatibility */
1213
    int unused;
1214

    
1215
    /**
1216
     * idct algorithm, see FF_IDCT_* below.
1217
     * - encoding: set by user
1218
     * - decoding: set by user
1219
     */
1220
    int idct_algo;
1221
#define FF_IDCT_AUTO         0
1222
#define FF_IDCT_INT          1
1223
#define FF_IDCT_SIMPLE       2
1224
#define FF_IDCT_SIMPLEMMX    3
1225
#define FF_IDCT_LIBMPEG2MMX  4
1226
#define FF_IDCT_PS2          5
1227
#define FF_IDCT_MLIB         6
1228
#define FF_IDCT_ARM          7
1229
#define FF_IDCT_ALTIVEC      8
1230
#define FF_IDCT_SH4          9
1231
#define FF_IDCT_SIMPLEARM    10
1232
#define FF_IDCT_H264         11
1233
#define FF_IDCT_VP3          12
1234
#define FF_IDCT_IPP          13
1235
#define FF_IDCT_XVIDMMX      14
1236
#define FF_IDCT_CAVS         15
1237
#define FF_IDCT_SIMPLEARMV5TE 16
1238
#define FF_IDCT_SIMPLEARMV6  17
1239

    
1240
    /**
1241
     * slice count.
1242
     * - encoding: set by lavc
1243
     * - decoding: set by user (or 0)
1244
     */
1245
    int slice_count;
1246
    /**
1247
     * slice offsets in the frame in bytes.
1248
     * - encoding: set/allocated by lavc
1249
     * - decoding: set/allocated by user (or NULL)
1250
     */
1251
    int *slice_offset;
1252

    
1253
    /**
1254
     * error concealment flags.
1255
     * - encoding: unused
1256
     * - decoding: set by user
1257
     */
1258
    int error_concealment;
1259
#define FF_EC_GUESS_MVS   1
1260
#define FF_EC_DEBLOCK     2
1261

    
1262
    /**
1263
     * dsp_mask could be add used to disable unwanted CPU features
1264
     * CPU features (i.e. MMX, SSE. ...)
1265
     *
1266
     * with FORCE flag you may instead enable given CPU features
1267
     * (Dangerous: usable in case of misdetection, improper usage however will
1268
     * result into program crash)
1269
     */
1270
    unsigned dsp_mask;
1271
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1272
    /* lower 16 bits - CPU features */
1273
#ifdef HAVE_MMX
1274
#define FF_MM_MMX      0x0001 /* standard MMX */
1275
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1276
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1277
#define FF_MM_SSE      0x0008 /* SSE functions */
1278
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1279
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1280
#endif /* HAVE_MMX */
1281
#ifdef HAVE_IWMMXT
1282
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1283
#endif /* HAVE_IWMMXT */
1284

    
1285
    /**
1286
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1287
     * - encoding: set by lavc
1288
     * - decoding: set by user
1289
     */
1290
     int bits_per_sample;
1291

    
1292
    /**
1293
     * prediction method (needed for huffyuv).
1294
     * - encoding: set by user
1295
     * - decoding: unused
1296
     */
1297
     int prediction_method;
1298
#define FF_PRED_LEFT   0
1299
#define FF_PRED_PLANE  1
1300
#define FF_PRED_MEDIAN 2
1301

    
1302
    /**
1303
     * sample aspect ratio (0 if unknown).
1304
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1305
     * - encoding: set by user.
1306
     * - decoding: set by lavc.
1307
     */
1308
    AVRational sample_aspect_ratio;
1309

    
1310
    /**
1311
     * the picture in the bitstream.
1312
     * - encoding: set by lavc
1313
     * - decoding: set by lavc
1314
     */
1315
    AVFrame *coded_frame;
1316

    
1317
    /**
1318
     * debug.
1319
     * - encoding: set by user.
1320
     * - decoding: set by user.
1321
     */
1322
    int debug;
1323
#define FF_DEBUG_PICT_INFO 1
1324
#define FF_DEBUG_RC        2
1325
#define FF_DEBUG_BITSTREAM 4
1326
#define FF_DEBUG_MB_TYPE   8
1327
#define FF_DEBUG_QP        16
1328
#define FF_DEBUG_MV        32
1329
#define FF_DEBUG_DCT_COEFF 0x00000040
1330
#define FF_DEBUG_SKIP      0x00000080
1331
#define FF_DEBUG_STARTCODE 0x00000100
1332
#define FF_DEBUG_PTS       0x00000200
1333
#define FF_DEBUG_ER        0x00000400
1334
#define FF_DEBUG_MMCO      0x00000800
1335
#define FF_DEBUG_BUGS      0x00001000
1336
#define FF_DEBUG_VIS_QP    0x00002000
1337
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1338

    
1339
    /**
1340
     * debug.
1341
     * - encoding: set by user.
1342
     * - decoding: set by user.
1343
     */
1344
    int debug_mv;
1345
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1346
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1347
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1348

    
1349
    /**
1350
     * error.
1351
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1352
     * - decoding: unused
1353
     */
1354
    uint64_t error[4];
1355

    
1356
    /**
1357
     * minimum MB quantizer.
1358
     * - encoding: unused
1359
     * - decoding: unused
1360
     */
1361
    int mb_qmin;
1362

    
1363
    /**
1364
     * maximum MB quantizer.
1365
     * - encoding: unused
1366
     * - decoding: unused
1367
     */
1368
    int mb_qmax;
1369

    
1370
    /**
1371
     * motion estimation compare function.
1372
     * - encoding: set by user.
1373
     * - decoding: unused
1374
     */
1375
    int me_cmp;
1376
    /**
1377
     * subpixel motion estimation compare function.
1378
     * - encoding: set by user.
1379
     * - decoding: unused
1380
     */
1381
    int me_sub_cmp;
1382
    /**
1383
     * macroblock compare function (not supported yet).
1384
     * - encoding: set by user.
1385
     * - decoding: unused
1386
     */
1387
    int mb_cmp;
1388
    /**
1389
     * interlaced dct compare function
1390
     * - encoding: set by user.
1391
     * - decoding: unused
1392
     */
1393
    int ildct_cmp;
1394
#define FF_CMP_SAD  0
1395
#define FF_CMP_SSE  1
1396
#define FF_CMP_SATD 2
1397
#define FF_CMP_DCT  3
1398
#define FF_CMP_PSNR 4
1399
#define FF_CMP_BIT  5
1400
#define FF_CMP_RD   6
1401
#define FF_CMP_ZERO 7
1402
#define FF_CMP_VSAD 8
1403
#define FF_CMP_VSSE 9
1404
#define FF_CMP_NSSE 10
1405
#define FF_CMP_W53  11
1406
#define FF_CMP_W97  12
1407
#define FF_CMP_DCTMAX 13
1408
#define FF_CMP_DCT264 14
1409
#define FF_CMP_CHROMA 256
1410

    
1411
    /**
1412
     * ME diamond size & shape.
1413
     * - encoding: set by user.
1414
     * - decoding: unused
1415
     */
1416
    int dia_size;
1417

    
1418
    /**
1419
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1420
     * - encoding: set by user.
1421
     * - decoding: unused
1422
     */
1423
    int last_predictor_count;
1424

    
1425
    /**
1426
     * pre pass for motion estimation.
1427
     * - encoding: set by user.
1428
     * - decoding: unused
1429
     */
1430
    int pre_me;
1431

    
1432
    /**
1433
     * motion estimation pre pass compare function.
1434
     * - encoding: set by user.
1435
     * - decoding: unused
1436
     */
1437
    int me_pre_cmp;
1438

    
1439
    /**
1440
     * ME pre pass diamond size & shape.
1441
     * - encoding: set by user.
1442
     * - decoding: unused
1443
     */
1444
    int pre_dia_size;
1445

    
1446
    /**
1447
     * subpel ME quality.
1448
     * - encoding: set by user.
1449
     * - decoding: unused
1450
     */
1451
    int me_subpel_quality;
1452

    
1453
    /**
1454
     * callback to negotiate the pixelFormat.
1455
     * @param fmt is the list of formats which are supported by the codec,
1456
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1457
     * the first is allways the native one
1458
     * @return the choosen format
1459
     * - encoding: unused
1460
     * - decoding: set by user, if not set then the native format will always be choosen
1461
     */
1462
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1463

    
1464
    /**
1465
     * DTG active format information (additionnal aspect ratio
1466
     * information only used in DVB MPEG2 transport streams). 0 if
1467
     * not set.
1468
     *
1469
     * - encoding: unused.
1470
     * - decoding: set by decoder
1471
     */
1472
    int dtg_active_format;
1473
#define FF_DTG_AFD_SAME         8
1474
#define FF_DTG_AFD_4_3          9
1475
#define FF_DTG_AFD_16_9         10
1476
#define FF_DTG_AFD_14_9         11
1477
#define FF_DTG_AFD_4_3_SP_14_9  13
1478
#define FF_DTG_AFD_16_9_SP_14_9 14
1479
#define FF_DTG_AFD_SP_4_3       15
1480

    
1481
    /**
1482
     * Maximum motion estimation search range in subpel units.
1483
     * if 0 then no limit
1484
     *
1485
     * - encoding: set by user.
1486
     * - decoding: unused.
1487
     */
1488
    int me_range;
1489

    
1490
    /**
1491
     * intra quantizer bias.
1492
     * - encoding: set by user.
1493
     * - decoding: unused
1494
     */
1495
    int intra_quant_bias;
1496
#define FF_DEFAULT_QUANT_BIAS 999999
1497

    
1498
    /**
1499
     * inter quantizer bias.
1500
     * - encoding: set by user.
1501
     * - decoding: unused
1502
     */
1503
    int inter_quant_bias;
1504

    
1505
    /**
1506
     * color table ID.
1507
     * - encoding: unused.
1508
     * - decoding: which clrtable should be used for 8bit RGB images
1509
     *             table have to be stored somewhere FIXME
1510
     */
1511
    int color_table_id;
1512

    
1513
    /**
1514
     * internal_buffer count.
1515
     * Don't touch, used by lavc default_get_buffer()
1516
     */
1517
    int internal_buffer_count;
1518

    
1519
    /**
1520
     * internal_buffers.
1521
     * Don't touch, used by lavc default_get_buffer()
1522
     */
1523
    void *internal_buffer;
1524

    
1525
#define FF_LAMBDA_SHIFT 7
1526
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1527
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1528
#define FF_LAMBDA_MAX (256*128-1)
1529

    
1530
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1531
    /**
1532
     * global quality for codecs which cannot change it per frame.
1533
     * this should be proportional to MPEG1/2/4 qscale.
1534
     * - encoding: set by user.
1535
     * - decoding: unused
1536
     */
1537
    int global_quality;
1538

    
1539
#define FF_CODER_TYPE_VLC   0
1540
#define FF_CODER_TYPE_AC    1
1541
    /**
1542
     * coder type
1543
     * - encoding: set by user.
1544
     * - decoding: unused
1545
     */
1546
    int coder_type;
1547

    
1548
    /**
1549
     * context model
1550
     * - encoding: set by user.
1551
     * - decoding: unused
1552
     */
1553
    int context_model;
1554
#if 0
1555
    /**
1556
     *
1557
     * - encoding: unused
1558
     * - decoding: set by user.
1559
     */
1560
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1561
#endif
1562

    
1563
    /**
1564
     * slice flags
1565
     * - encoding: unused
1566
     * - decoding: set by user.
1567
     */
1568
    int slice_flags;
1569
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1570
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1571
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1572

    
1573
    /**
1574
     * XVideo Motion Acceleration
1575
     * - encoding: forbidden
1576
     * - decoding: set by decoder
1577
     */
1578
    int xvmc_acceleration;
1579

    
1580
    /**
1581
     * macroblock decision mode
1582
     * - encoding: set by user.
1583
     * - decoding: unused
1584
     */
1585
    int mb_decision;
1586
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1587
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1588
#define FF_MB_DECISION_RD     2        ///< rate distoration
1589

    
1590
    /**
1591
     * custom intra quantization matrix
1592
     * - encoding: set by user, can be NULL
1593
     * - decoding: set by lavc
1594
     */
1595
    uint16_t *intra_matrix;
1596

    
1597
    /**
1598
     * custom inter quantization matrix
1599
     * - encoding: set by user, can be NULL
1600
     * - decoding: set by lavc
1601
     */
1602
    uint16_t *inter_matrix;
1603

    
1604
    /**
1605
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1606
     * this is used to workaround some encoder bugs
1607
     * - encoding: unused
1608
     * - decoding: set by user, will be converted to upper case by lavc during init
1609
     */
1610
    unsigned int stream_codec_tag;
1611

    
1612
    /**
1613
     * scene change detection threshold.
1614
     * 0 is default, larger means fewer detected scene changes
1615
     * - encoding: set by user.
1616
     * - decoding: unused
1617
     */
1618
    int scenechange_threshold;
1619

    
1620
    /**
1621
     * minimum lagrange multipler
1622
     * - encoding: set by user.
1623
     * - decoding: unused
1624
     */
1625
    int lmin;
1626

    
1627
    /**
1628
     * maximum lagrange multipler
1629
     * - encoding: set by user.
1630
     * - decoding: unused
1631
     */
1632
    int lmax;
1633

    
1634
    /**
1635
     * Palette control structure
1636
     * - encoding: ??? (no palette-enabled encoder yet)
1637
     * - decoding: set by user.
1638
     */
1639
    struct AVPaletteControl *palctrl;
1640

    
1641
    /**
1642
     * noise reduction strength
1643
     * - encoding: set by user.
1644
     * - decoding: unused
1645
     */
1646
    int noise_reduction;
1647

    
1648
    /**
1649
     * called at the beginning of a frame to get cr buffer for it.
1650
     * buffer type (size, hints) must be the same. lavc won't check it.
1651
     * lavc will pass previous buffer in pic, function should return
1652
     * same buffer or new buffer with old frame "painted" into it.
1653
     * if pic.data[0] == NULL must behave like get_buffer().
1654
     * - encoding: unused
1655
     * - decoding: set by lavc, user can override
1656
     */
1657
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1658

    
1659
    /**
1660
     * number of bits which should be loaded into the rc buffer before decoding starts
1661
     * - encoding: set by user.
1662
     * - decoding: unused
1663
     */
1664
    int rc_initial_buffer_occupancy;
1665

    
1666
    /**
1667
     *
1668
     * - encoding: set by user.
1669
     * - decoding: unused
1670
     */
1671
    int inter_threshold;
1672

    
1673
    /**
1674
     * CODEC_FLAG2_*.
1675
     * - encoding: set by user.
1676
     * - decoding: set by user.
1677
     */
1678
    int flags2;
1679

    
1680
    /**
1681
     * simulates errors in the bitstream to test error concealment.
1682
     * - encoding: set by user.
1683
     * - decoding: unused.
1684
     */
1685
    int error_rate;
1686

    
1687
    /**
1688
     * MP3 antialias algorithm, see FF_AA_* below.
1689
     * - encoding: unused
1690
     * - decoding: set by user
1691
     */
1692
    int antialias_algo;
1693
#define FF_AA_AUTO    0
1694
#define FF_AA_FASTINT 1 //not implemented yet
1695
#define FF_AA_INT     2
1696
#define FF_AA_FLOAT   3
1697
    /**
1698
     * Quantizer noise shaping.
1699
     * - encoding: set by user
1700
     * - decoding: unused
1701
     */
1702
    int quantizer_noise_shaping;
1703

    
1704
    /**
1705
     * Thread count.
1706
     * is used to decide how many independant tasks should be passed to execute()
1707
     * - encoding: set by user
1708
     * - decoding: set by user
1709
     */
1710
    int thread_count;
1711

    
1712
    /**
1713
     * the codec may call this to execute several independant things. it will return only after
1714
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1715
     * default implementation will execute the parts serially
1716
     * @param count the number of things to execute
1717
     * - encoding: set by lavc, user can override
1718
     * - decoding: set by lavc, user can override
1719
     */
1720
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1721

    
1722
    /**
1723
     * Thread opaque.
1724
     * can be used by execute() to store some per AVCodecContext stuff.
1725
     * - encoding: set by execute()
1726
     * - decoding: set by execute()
1727
     */
1728
    void *thread_opaque;
1729

    
1730
    /**
1731
     * Motion estimation threshold. under which no motion estimation is
1732
     * performed, but instead the user specified motion vectors are used
1733
     *
1734
     * - encoding: set by user
1735
     * - decoding: unused
1736
     */
1737
     int me_threshold;
1738

    
1739
    /**
1740
     * Macroblock threshold. under which the user specified macroblock types will be used
1741
     * - encoding: set by user
1742
     * - decoding: unused
1743
     */
1744
     int mb_threshold;
1745

    
1746
    /**
1747
     * precision of the intra dc coefficient - 8.
1748
     * - encoding: set by user
1749
     * - decoding: unused
1750
     */
1751
     int intra_dc_precision;
1752

    
1753
    /**
1754
     * noise vs. sse weight for the nsse comparsion function.
1755
     * - encoding: set by user
1756
     * - decoding: unused
1757
     */
1758
     int nsse_weight;
1759

    
1760
    /**
1761
     * number of macroblock rows at the top which are skipped.
1762
     * - encoding: unused
1763
     * - decoding: set by user
1764
     */
1765
     int skip_top;
1766

    
1767
    /**
1768
     * number of macroblock rows at the bottom which are skipped.
1769
     * - encoding: unused
1770
     * - decoding: set by user
1771
     */
1772
     int skip_bottom;
1773

    
1774
    /**
1775
     * profile
1776
     * - encoding: set by user
1777
     * - decoding: set by lavc
1778
     */
1779
     int profile;
1780
#define FF_PROFILE_UNKNOWN -99
1781

    
1782
    /**
1783
     * level
1784
     * - encoding: set by user
1785
     * - decoding: set by lavc
1786
     */
1787
     int level;
1788
#define FF_LEVEL_UNKNOWN -99
1789

    
1790
    /**
1791
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1792
     * - encoding: unused
1793
     * - decoding: set by user
1794
     */
1795
     int lowres;
1796

    
1797
    /**
1798
     * bitsream width / height. may be different from width/height if lowres
1799
     * or other things are used
1800
     * - encoding: unused
1801
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1802
     */
1803
    int coded_width, coded_height;
1804

    
1805
    /**
1806
     * frame skip threshold
1807
     * - encoding: set by user
1808
     * - decoding: unused
1809
     */
1810
    int frame_skip_threshold;
1811

    
1812
    /**
1813
     * frame skip factor
1814
     * - encoding: set by user
1815
     * - decoding: unused
1816
     */
1817
    int frame_skip_factor;
1818

    
1819
    /**
1820
     * frame skip exponent
1821
     * - encoding: set by user
1822
     * - decoding: unused
1823
     */
1824
    int frame_skip_exp;
1825

    
1826
    /**
1827
     * frame skip comparission function
1828
     * - encoding: set by user.
1829
     * - decoding: unused
1830
     */
1831
    int frame_skip_cmp;
1832

    
1833
    /**
1834
     * border processing masking. raises the quantizer for mbs on the borders
1835
     * of the picture.
1836
     * - encoding: set by user
1837
     * - decoding: unused
1838
     */
1839
    float border_masking;
1840

    
1841
    /**
1842
     * minimum MB lagrange multipler.
1843
     * - encoding: set by user.
1844
     * - decoding: unused
1845
     */
1846
    int mb_lmin;
1847

    
1848
    /**
1849
     * maximum MB lagrange multipler.
1850
     * - encoding: set by user.
1851
     * - decoding: unused
1852
     */
1853
    int mb_lmax;
1854

    
1855
    /**
1856
     *
1857
     * - encoding: set by user.
1858
     * - decoding: unused
1859
     */
1860
    int me_penalty_compensation;
1861

    
1862
    /**
1863
     *
1864
     * - encoding: unused
1865
     * - decoding: set by user.
1866
     */
1867
    enum AVDiscard skip_loop_filter;
1868

    
1869
    /**
1870
     *
1871
     * - encoding: unused
1872
     * - decoding: set by user.
1873
     */
1874
    enum AVDiscard skip_idct;
1875

    
1876
    /**
1877
     *
1878
     * - encoding: unused
1879
     * - decoding: set by user.
1880
     */
1881
    enum AVDiscard skip_frame;
1882

    
1883
    /**
1884
     *
1885
     * - encoding: set by user.
1886
     * - decoding: unused
1887
     */
1888
    int bidir_refine;
1889

    
1890
    /**
1891
     *
1892
     * - encoding: set by user.
1893
     * - decoding: unused
1894
     */
1895
    int brd_scale;
1896

    
1897
    /**
1898
     * constant rate factor - quality-based VBR - values ~correspond to qps
1899
     * - encoding: set by user.
1900
     * - decoding: unused
1901
     */
1902
    float crf;
1903

    
1904
    /**
1905
     * constant quantization parameter rate control method
1906
     * - encoding: set by user.
1907
     * - decoding: unused
1908
     */
1909
    int cqp;
1910

    
1911
    /**
1912
     * minimum gop size
1913
     * - encoding: set by user.
1914
     * - decoding: unused
1915
     */
1916
    int keyint_min;
1917

    
1918
    /**
1919
     * number of reference frames
1920
     * - encoding: set by user.
1921
     * - decoding: unused
1922
     */
1923
    int refs;
1924

    
1925
    /**
1926
     * chroma qp offset from luma
1927
     * - encoding: set by user.
1928
     * - decoding: unused
1929
     */
1930
    int chromaoffset;
1931

    
1932
    /**
1933
     * influences how often b-frames are used
1934
     * - encoding: set by user.
1935
     * - decoding: unused
1936
     */
1937
    int bframebias;
1938

    
1939
    /**
1940
     * trellis RD quantization
1941
     * - encoding: set by user.
1942
     * - decoding: unused
1943
     */
1944
    int trellis;
1945

    
1946
    /**
1947
     * reduce fluctuations in qp (before curve compression)
1948
     * - encoding: set by user.
1949
     * - decoding: unused
1950
     */
1951
    float complexityblur;
1952

    
1953
    /**
1954
     * in-loop deblocking filter alphac0 parameter
1955
     * alpha is in the range -6...6
1956
     * - encoding: set by user.
1957
     * - decoding: unused
1958
     */
1959
    int deblockalpha;
1960

    
1961
    /**
1962
     * in-loop deblocking filter beta parameter
1963
     * beta is in the range -6...6
1964
     * - encoding: set by user.
1965
     * - decoding: unused
1966
     */
1967
    int deblockbeta;
1968

    
1969
    /**
1970
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1971
     * - encoding: set by user.
1972
     * - decoding: unused
1973
     */
1974
    int partitions;
1975
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1976
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1977
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1978
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1979
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1980

    
1981
    /**
1982
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1983
     * - encoding: set by user.
1984
     * - decoding: unused
1985
     */
1986
    int directpred;
1987

    
1988
    /**
1989
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1990
     * - encoding: set by user.
1991
     * - decoding: unused
1992
     */
1993
    int cutoff;
1994

    
1995
    /**
1996
     * multiplied by qscale for each frame and added to scene_change_score
1997
     * - encoding: set by user.
1998
     * - decoding: unused
1999
     */
2000
    int scenechange_factor;
2001

    
2002
    /**
2003
     *
2004
     * note: value depends upon the compare functin used for fullpel ME
2005
     * - encoding: set by user.
2006
     * - decoding: unused
2007
     */
2008
    int mv0_threshold;
2009

    
2010
    /**
2011
     * adjusts sensitivity of b_frame_strategy 1
2012
     * - encoding: set by user.
2013
     * - decoding: unused
2014
     */
2015
    int b_sensitivity;
2016

    
2017
    /**
2018
     * - encoding: set by user.
2019
     * - decoding: unused
2020
     */
2021
    int compression_level;
2022
#define FF_COMPRESSION_DEFAULT -1
2023

    
2024
    /**
2025
     * sets whether to use LPC mode - used by FLAC encoder
2026
     * - encoding: set by user.
2027
     * - decoding: unused.
2028
     */
2029
    int use_lpc;
2030

    
2031
    /**
2032
     * LPC coefficient precision - used by FLAC encoder
2033
     * - encoding: set by user.
2034
     * - decoding: unused.
2035
     */
2036
    int lpc_coeff_precision;
2037

    
2038
    /**
2039
     * - encoding: set by user.
2040
     * - decoding: unused.
2041
     */
2042
    int min_prediction_order;
2043

    
2044
    /**
2045
     * - encoding: set by user.
2046
     * - decoding: unused.
2047
     */
2048
    int max_prediction_order;
2049

    
2050
    /**
2051
     * search method for selecting prediction order
2052
     * - encoding: set by user.
2053
     * - decoding: unused.
2054
     */
2055
    int prediction_order_method;
2056

    
2057
    /**
2058
     * - encoding: set by user.
2059
     * - decoding: unused.
2060
     */
2061
    int min_partition_order;
2062

    
2063
    /**
2064
     * - encoding: set by user.
2065
     * - decoding: unused.
2066
     */
2067
    int max_partition_order;
2068

    
2069
    /**
2070
     * GOP timecode frame start number, in non drop frame format
2071
     * - encoding: set by user.
2072
     * - decoding: unused.
2073
     */
2074
    int64_t timecode_frame_start;
2075
} AVCodecContext;
2076

    
2077
/**
2078
 * AVCodec.
2079
 */
2080
typedef struct AVCodec {
2081
    const char *name;
2082
    enum CodecType type;
2083
    enum CodecID id;
2084
    int priv_data_size;
2085
    int (*init)(AVCodecContext *);
2086
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
2087
    int (*close)(AVCodecContext *);
2088
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2089
                  uint8_t *buf, int buf_size);
2090
    int capabilities;
2091
    struct AVCodec *next;
2092
    void (*flush)(AVCodecContext *);
2093
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2094
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2095
} AVCodec;
2096

    
2097
/**
2098
 * four components are given, that's all.
2099
 * the last component is alpha
2100
 */
2101
typedef struct AVPicture {
2102
    uint8_t *data[4];
2103
    int linesize[4];       ///< number of bytes per line
2104
} AVPicture;
2105

    
2106
/**
2107
 * AVPaletteControl
2108
 * This structure defines a method for communicating palette changes
2109
 * between and demuxer and a decoder.
2110
 * this is totally broken, palette changes should be sent as AVPackets
2111
 */
2112
#define AVPALETTE_SIZE 1024
2113
#define AVPALETTE_COUNT 256
2114
typedef struct AVPaletteControl {
2115

    
2116
    /* demuxer sets this to 1 to indicate the palette has changed;
2117
     * decoder resets to 0 */
2118
    int palette_changed;
2119

    
2120
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2121
     * the individual palette components should be on a 8-bit scale; if
2122
     * the palette data comes from a IBM VGA native format, the component
2123
     * data is probably 6 bits in size and needs to be scaled */
2124
    unsigned int palette[AVPALETTE_COUNT];
2125

    
2126
} AVPaletteControl attribute_deprecated;
2127

    
2128
typedef struct AVSubtitleRect {
2129
    uint16_t x;
2130
    uint16_t y;
2131
    uint16_t w;
2132
    uint16_t h;
2133
    uint16_t nb_colors;
2134
    int linesize;
2135
    uint32_t *rgba_palette;
2136
    uint8_t *bitmap;
2137
} AVSubtitleRect;
2138

    
2139
typedef struct AVSubtitle {
2140
    uint16_t format; /* 0 = graphics */
2141
    uint32_t start_display_time; /* relative to packet pts, in ms */
2142
    uint32_t end_display_time; /* relative to packet pts, in ms */
2143
    uint32_t num_rects;
2144
    AVSubtitleRect *rects;
2145
} AVSubtitle;
2146

    
2147
extern AVCodec ac3_encoder;
2148
extern AVCodec amr_nb_encoder;
2149
extern AVCodec amr_wb_encoder;
2150
extern AVCodec asv1_encoder;
2151
extern AVCodec asv2_encoder;
2152
extern AVCodec bmp_encoder;
2153
extern AVCodec dvvideo_encoder;
2154
extern AVCodec faac_encoder;
2155
extern AVCodec ffv1_encoder;
2156
extern AVCodec ffvhuff_encoder;
2157
extern AVCodec flac_encoder;
2158
extern AVCodec flashsv_encoder;
2159
extern AVCodec flv_encoder;
2160
extern AVCodec gif_encoder;
2161
extern AVCodec h261_encoder;
2162
extern AVCodec h263_encoder;
2163
extern AVCodec h263p_encoder;
2164
extern AVCodec h264_encoder;
2165
extern AVCodec huffyuv_encoder;
2166
extern AVCodec jpegls_encoder;
2167
extern AVCodec libgsm_encoder;
2168
extern AVCodec libtheora_encoder;
2169
extern AVCodec ljpeg_encoder;
2170
extern AVCodec mdec_encoder;
2171
extern AVCodec mjpeg_encoder;
2172
extern AVCodec mp2_encoder;
2173
extern AVCodec mp3lame_encoder;
2174
extern AVCodec mpeg1video_encoder;
2175
extern AVCodec mpeg2video_encoder;
2176
extern AVCodec mpeg4_encoder;
2177
extern AVCodec msmpeg4v1_encoder;
2178
extern AVCodec msmpeg4v2_encoder;
2179
extern AVCodec msmpeg4v3_encoder;
2180
extern AVCodec oggvorbis_encoder;
2181
extern AVCodec pam_encoder;
2182
extern AVCodec pbm_encoder;
2183
extern AVCodec pgm_encoder;
2184
extern AVCodec pgmyuv_encoder;
2185
extern AVCodec png_encoder;
2186
extern AVCodec ppm_encoder;
2187
extern AVCodec rv10_encoder;
2188
extern AVCodec rv20_encoder;
2189
extern AVCodec snow_encoder;
2190
extern AVCodec sonic_encoder;
2191
extern AVCodec sonic_ls_encoder;
2192
extern AVCodec svq1_encoder;
2193
extern AVCodec vcr1_encoder;
2194
extern AVCodec vorbis_encoder;
2195
extern AVCodec wmv1_encoder;
2196
extern AVCodec wmv2_encoder;
2197
extern AVCodec x264_encoder;
2198
extern AVCodec xvid_encoder;
2199
extern AVCodec zlib_encoder;
2200
extern AVCodec zmbv_encoder;
2201

    
2202
extern AVCodec aac_decoder;
2203
extern AVCodec aasc_decoder;
2204
extern AVCodec alac_decoder;
2205
extern AVCodec amr_nb_decoder;
2206
extern AVCodec amr_wb_decoder;
2207
extern AVCodec asv1_decoder;
2208
extern AVCodec asv2_decoder;
2209
extern AVCodec avs_decoder;
2210
extern AVCodec bmp_decoder;
2211
extern AVCodec cavs_decoder;
2212
extern AVCodec cinepak_decoder;
2213
extern AVCodec cljr_decoder;
2214
extern AVCodec cook_decoder;
2215
extern AVCodec cscd_decoder;
2216
extern AVCodec cyuv_decoder;
2217
extern AVCodec dsicinaudio_decoder;
2218
extern AVCodec dsicinvideo_decoder;
2219
extern AVCodec dvvideo_decoder;
2220
extern AVCodec eightbps_decoder;
2221
extern AVCodec ffv1_decoder;
2222
extern AVCodec ffvhuff_decoder;
2223
extern AVCodec flac_decoder;
2224
extern AVCodec flashsv_decoder;
2225
extern AVCodec flic_decoder;
2226
extern AVCodec flv_decoder;
2227
extern AVCodec fourxm_decoder;
2228
extern AVCodec fraps_decoder;
2229
extern AVCodec gif_decoder;
2230
extern AVCodec h261_decoder;
2231
extern AVCodec h263_decoder;
2232
extern AVCodec h263i_decoder;
2233
extern AVCodec h264_decoder;
2234
extern AVCodec huffyuv_decoder;
2235
extern AVCodec idcin_decoder;
2236
extern AVCodec imc_decoder;
2237
extern AVCodec indeo2_decoder;
2238
extern AVCodec indeo3_decoder;
2239
extern AVCodec interplay_dpcm_decoder;
2240
extern AVCodec interplay_video_decoder;
2241
extern AVCodec kmvc_decoder;
2242
extern AVCodec libgsm_decoder;
2243
extern AVCodec loco_decoder;
2244
extern AVCodec mace3_decoder;
2245
extern AVCodec mace6_decoder;
2246
extern AVCodec mdec_decoder;
2247
extern AVCodec mjpeg_decoder;
2248
extern AVCodec mjpegb_decoder;
2249
extern AVCodec mmvideo_decoder;
2250
extern AVCodec mp2_decoder;
2251
extern AVCodec mp3_decoder;
2252
extern AVCodec mp3adu_decoder;
2253
extern AVCodec mp3on4_decoder;
2254
extern AVCodec mpc7_decoder;
2255
extern AVCodec mpeg1video_decoder;
2256
extern AVCodec mpeg2video_decoder;
2257
extern AVCodec mpeg4_decoder;
2258
extern AVCodec mpeg4aac_decoder;
2259
extern AVCodec mpeg_xvmc_decoder;
2260
extern AVCodec mpegvideo_decoder;
2261
extern AVCodec msmpeg4v1_decoder;
2262
extern AVCodec msmpeg4v2_decoder;
2263
extern AVCodec msmpeg4v3_decoder;
2264
extern AVCodec msrle_decoder;
2265
extern AVCodec msvideo1_decoder;
2266
extern AVCodec mszh_decoder;
2267
extern AVCodec nuv_decoder;
2268
extern AVCodec oggvorbis_decoder;
2269
extern AVCodec png_decoder;
2270
extern AVCodec qdm2_decoder;
2271
extern AVCodec qdraw_decoder;
2272
extern AVCodec qpeg_decoder;
2273
extern AVCodec qtrle_decoder;
2274
extern AVCodec ra_144_decoder;
2275
extern AVCodec ra_288_decoder;
2276
extern AVCodec roq_decoder;
2277
extern AVCodec roq_dpcm_decoder;
2278
extern AVCodec rpza_decoder;
2279
extern AVCodec rv10_decoder;
2280
extern AVCodec rv20_decoder;
2281
extern AVCodec rv30_decoder;
2282
extern AVCodec rv40_decoder;
2283
extern AVCodec shorten_decoder;
2284
extern AVCodec smackaud_decoder;
2285
extern AVCodec smacker_decoder;
2286
extern AVCodec smc_decoder;
2287
extern AVCodec snow_decoder;
2288
extern AVCodec sol_dpcm_decoder;
2289
extern AVCodec sonic_decoder;
2290
extern AVCodec sp5x_decoder;
2291
extern AVCodec svq1_decoder;
2292
extern AVCodec svq3_decoder;
2293
extern AVCodec targa_decoder;
2294
extern AVCodec theora_decoder;
2295
extern AVCodec tiertexseqvideo_decoder;
2296
extern AVCodec tiff_decoder;
2297
extern AVCodec truemotion1_decoder;
2298
extern AVCodec truemotion2_decoder;
2299
extern AVCodec truespeech_decoder;
2300
extern AVCodec tscc_decoder;
2301
extern AVCodec tta_decoder;
2302
extern AVCodec ulti_decoder;
2303
extern AVCodec vc1_decoder;
2304
extern AVCodec vcr1_decoder;
2305
extern AVCodec vmdaudio_decoder;
2306
extern AVCodec vmdvideo_decoder;
2307
extern AVCodec vmnc_decoder;
2308
extern AVCodec vorbis_decoder;
2309
extern AVCodec vp3_decoder;
2310
extern AVCodec vp5_decoder;
2311
extern AVCodec vp6_decoder;
2312
extern AVCodec vp6f_decoder;
2313
extern AVCodec vqa_decoder;
2314
extern AVCodec wavpack_decoder;
2315
extern AVCodec wmav1_decoder;
2316
extern AVCodec wmav2_decoder;
2317
extern AVCodec wmv1_decoder;
2318
extern AVCodec wmv2_decoder;
2319
extern AVCodec wmv3_decoder;
2320
extern AVCodec wnv1_decoder;
2321
extern AVCodec ws_snd1_decoder;
2322
extern AVCodec xan_dpcm_decoder;
2323
extern AVCodec xan_wc3_decoder;
2324
extern AVCodec xl_decoder;
2325
extern AVCodec zlib_decoder;
2326
extern AVCodec zmbv_decoder;
2327

    
2328
/* pcm codecs */
2329
#define PCM_CODEC(id, name) \
2330
extern AVCodec name ## _decoder; \
2331
extern AVCodec name ## _encoder
2332

    
2333
PCM_CODEC(CODEC_ID_PCM_ALAW,    pcm_alaw);
2334
PCM_CODEC(CODEC_ID_PCM_MULAW,   pcm_mulaw);
2335
PCM_CODEC(CODEC_ID_PCM_S8,      pcm_s8);
2336
PCM_CODEC(CODEC_ID_PCM_S16BE,   pcm_s16be);
2337
PCM_CODEC(CODEC_ID_PCM_S16LE,   pcm_s16le);
2338
PCM_CODEC(CODEC_ID_PCM_S24BE,   pcm_s24be);
2339
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2340
PCM_CODEC(CODEC_ID_PCM_S24LE,   pcm_s24le);
2341
PCM_CODEC(CODEC_ID_PCM_S32BE,   pcm_s32be);
2342
PCM_CODEC(CODEC_ID_PCM_S32LE,   pcm_s32le);
2343
PCM_CODEC(CODEC_ID_PCM_U8,      pcm_u8);
2344
PCM_CODEC(CODEC_ID_PCM_U16BE,   pcm_u16be);
2345
PCM_CODEC(CODEC_ID_PCM_U16LE,   pcm_u16le);
2346
PCM_CODEC(CODEC_ID_PCM_U24BE,   pcm_u24be);
2347
PCM_CODEC(CODEC_ID_PCM_U24LE,   pcm_u24le);
2348
PCM_CODEC(CODEC_ID_PCM_U32BE,   pcm_u32be);
2349
PCM_CODEC(CODEC_ID_PCM_U32LE,   pcm_u32le);
2350

    
2351
/* adpcm codecs */
2352

    
2353
PCM_CODEC(CODEC_ID_ADPCM_4XM,     adpcm_4xm);
2354
PCM_CODEC(CODEC_ID_ADPCM_ADX,     adpcm_adx);
2355
PCM_CODEC(CODEC_ID_ADPCM_CT,      adpcm_ct);
2356
PCM_CODEC(CODEC_ID_ADPCM_EA,      adpcm_ea);
2357
PCM_CODEC(CODEC_ID_ADPCM_G726,    adpcm_g726);
2358
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2359
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2360
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT,  adpcm_ima_qt);
2361
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2362
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS,  adpcm_ima_ws);
2363
PCM_CODEC(CODEC_ID_ADPCM_MS,      adpcm_ms);
2364
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
2365
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2366
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2367
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG,  adpcm_ima_smjpeg);
2368
PCM_CODEC(CODEC_ID_ADPCM_SWF,     adpcm_swf);
2369
PCM_CODEC(CODEC_ID_ADPCM_XA,      adpcm_xa);
2370
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA,  adpcm_yamaha);
2371

    
2372
#undef PCM_CODEC
2373

    
2374
/* dummy raw video codec */
2375
extern AVCodec rawvideo_decoder;
2376
extern AVCodec rawvideo_encoder;
2377

    
2378
/* the following codecs use external GPL libs */
2379
extern AVCodec ac3_decoder;
2380
extern AVCodec dts_decoder;
2381

    
2382
/* subtitles */
2383
extern AVCodec dvbsub_decoder;
2384
extern AVCodec dvbsub_encoder;
2385
extern AVCodec dvdsub_decoder;
2386
extern AVCodec dvdsub_encoder;
2387

    
2388
/* resample.c */
2389

    
2390
struct ReSampleContext;
2391
struct AVResampleContext;
2392

    
2393
typedef struct ReSampleContext ReSampleContext;
2394

    
2395
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2396
                                     int output_rate, int input_rate);
2397
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2398
void audio_resample_close(ReSampleContext *s);
2399

    
2400
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2401
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2402
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2403
void av_resample_close(struct AVResampleContext *c);
2404

    
2405
/* YUV420 format is assumed ! */
2406

    
2407
struct ImgReSampleContext;
2408

    
2409
typedef struct ImgReSampleContext ImgReSampleContext;
2410

    
2411
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2412
                                      int input_width, int input_height);
2413

    
2414
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2415
                                      int iwidth, int iheight,
2416
                                      int topBand, int bottomBand,
2417
                                      int leftBand, int rightBand,
2418
                                      int padtop, int padbottom,
2419
                                      int padleft, int padright);
2420

    
2421

    
2422
void img_resample(ImgReSampleContext *s,
2423
                  AVPicture *output, const AVPicture *input);
2424

    
2425
void img_resample_close(ImgReSampleContext *s);
2426

    
2427
/**
2428
 * Allocate memory for a picture.  Call avpicture_free to free it.
2429
 *
2430
 * @param picture the picture to be filled in.
2431
 * @param pix_fmt the format of the picture.
2432
 * @param width the width of the picture.
2433
 * @param height the height of the picture.
2434
 * @return 0 if successful, -1 if not.
2435
 */
2436
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2437

    
2438
/* Free a picture previously allocated by avpicture_alloc. */
2439
void avpicture_free(AVPicture *picture);
2440

    
2441
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2442
                   int pix_fmt, int width, int height);
2443
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2444
                     unsigned char *dest, int dest_size);
2445
int avpicture_get_size(int pix_fmt, int width, int height);
2446
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2447
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2448
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2449
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2450
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2451

    
2452
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2453
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2454
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2455
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2456
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2457
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2458

    
2459
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2460
                             int has_alpha);
2461
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2462
                              int has_alpha, int *loss_ptr);
2463

    
2464
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2465
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2466
int img_get_alpha_info(const AVPicture *src,
2467
                       int pix_fmt, int width, int height);
2468

    
2469
/* convert among pixel formats */
2470
int img_convert(AVPicture *dst, int dst_pix_fmt,
2471
                const AVPicture *src, int pix_fmt,
2472
                int width, int height);
2473

    
2474
/* deinterlace a picture */
2475
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2476
                          int pix_fmt, int width, int height);
2477

    
2478
/* external high level API */
2479

    
2480
extern AVCodec *first_avcodec;
2481

    
2482
/* returns LIBAVCODEC_VERSION_INT constant */
2483
unsigned avcodec_version(void);
2484
/* returns LIBAVCODEC_BUILD constant */
2485
unsigned avcodec_build(void);
2486
void avcodec_init(void);
2487

    
2488
void register_avcodec(AVCodec *format);
2489
AVCodec *avcodec_find_encoder(enum CodecID id);
2490
AVCodec *avcodec_find_encoder_by_name(const char *name);
2491
AVCodec *avcodec_find_decoder(enum CodecID id);
2492
AVCodec *avcodec_find_decoder_by_name(const char *name);
2493
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2494

    
2495
void avcodec_get_context_defaults(AVCodecContext *s);
2496
AVCodecContext *avcodec_alloc_context(void);
2497
void avcodec_get_frame_defaults(AVFrame *pic);
2498
AVFrame *avcodec_alloc_frame(void);
2499

    
2500
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2501
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2502
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2503
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2504
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2505
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2506

    
2507
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2508
void avcodec_thread_free(AVCodecContext *s);
2509
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2510
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2511
//FIXME func typedef
2512

    
2513
/**
2514
 * opens / inits the AVCodecContext.
2515
 * not thread save!
2516
 */
2517
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2518

    
2519

    
2520
attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2521
                         int *frame_size_ptr,
2522
                         uint8_t *buf, int buf_size);
2523
/**
2524
 * Decode an audio frame.
2525
 *
2526
 * @param avctx the codec context.
2527
 * @param samples output buffer, 16 byte aligned
2528
 * @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
2529
 * @param buf input buffer, 16 byte aligned
2530
 * @param buf_size the input buffer size
2531
 * @return 0 if successful, -1 if not.
2532
 */
2533
int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
2534
                         int *frame_size_ptr,
2535
                         uint8_t *buf, int buf_size);
2536
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2537
                         int *got_picture_ptr,
2538
                         uint8_t *buf, int buf_size);
2539
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2540
                            int *got_sub_ptr,
2541
                            const uint8_t *buf, int buf_size);
2542
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2543
                        int *data_size_ptr,
2544
                        uint8_t *buf, int buf_size);
2545
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2546
                         const short *samples);
2547
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2548
                         const AVFrame *pict);
2549
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2550
                            const AVSubtitle *sub);
2551

    
2552
int avcodec_close(AVCodecContext *avctx);
2553

    
2554
void avcodec_register_all(void);
2555

    
2556
void avcodec_flush_buffers(AVCodecContext *avctx);
2557

    
2558
void avcodec_default_free_buffers(AVCodecContext *s);
2559

    
2560
/* misc usefull functions */
2561

    
2562
/**
2563
 * returns a single letter to describe the picture type
2564
 */
2565
char av_get_pict_type_char(int pict_type);
2566

    
2567
/**
2568
 * returns codec bits per sample
2569
 */
2570
int av_get_bits_per_sample(enum CodecID codec_id);
2571

    
2572
/* frame parsing */
2573
typedef struct AVCodecParserContext {
2574
    void *priv_data;
2575
    struct AVCodecParser *parser;
2576
    int64_t frame_offset; /* offset of the current frame */
2577
    int64_t cur_offset; /* current offset
2578
                           (incremented by each av_parser_parse()) */
2579
    int64_t last_frame_offset; /* offset of the last frame */
2580
    /* video info */
2581
    int pict_type; /* XXX: put it back in AVCodecContext */
2582
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2583
    int64_t pts;     /* pts of the current frame */
2584
    int64_t dts;     /* dts of the current frame */
2585

    
2586
    /* private data */
2587
    int64_t last_pts;
2588
    int64_t last_dts;
2589
    int fetch_timestamp;
2590

    
2591
#define AV_PARSER_PTS_NB 4
2592
    int cur_frame_start_index;
2593
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2594
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2595
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2596

    
2597
    int flags;
2598
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2599
} AVCodecParserContext;
2600

    
2601
typedef struct AVCodecParser {
2602
    int codec_ids[5]; /* several codec IDs are permitted */
2603
    int priv_data_size;
2604
    int (*parser_init)(AVCodecParserContext *s);
2605
    int (*parser_parse)(AVCodecParserContext *s,
2606
                        AVCodecContext *avctx,
2607
                        uint8_t **poutbuf, int *poutbuf_size,
2608
                        const uint8_t *buf, int buf_size);
2609
    void (*parser_close)(AVCodecParserContext *s);
2610
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2611
    struct AVCodecParser *next;
2612
} AVCodecParser;
2613

    
2614
extern AVCodecParser *av_first_parser;
2615

    
2616
void av_register_codec_parser(AVCodecParser *parser);
2617
AVCodecParserContext *av_parser_init(int codec_id);
2618
int av_parser_parse(AVCodecParserContext *s,
2619
                    AVCodecContext *avctx,
2620
                    uint8_t **poutbuf, int *poutbuf_size,
2621
                    const uint8_t *buf, int buf_size,
2622
                    int64_t pts, int64_t dts);
2623
int av_parser_change(AVCodecParserContext *s,
2624
                     AVCodecContext *avctx,
2625
                     uint8_t **poutbuf, int *poutbuf_size,
2626
                     const uint8_t *buf, int buf_size, int keyframe);
2627
void av_parser_close(AVCodecParserContext *s);
2628

    
2629
extern AVCodecParser aac_parser;
2630
extern AVCodecParser ac3_parser;
2631
extern AVCodecParser cavsvideo_parser;
2632
extern AVCodecParser dvbsub_parser;
2633
extern AVCodecParser dvdsub_parser;
2634
extern AVCodecParser h261_parser;
2635
extern AVCodecParser h263_parser;
2636
extern AVCodecParser h264_parser;
2637
extern AVCodecParser mjpeg_parser;
2638
extern AVCodecParser mpeg4video_parser;
2639
extern AVCodecParser mpegaudio_parser;
2640
extern AVCodecParser mpegvideo_parser;
2641
extern AVCodecParser pnm_parser;
2642
extern AVCodecParser vc1_parser;
2643

    
2644

    
2645
typedef struct AVBitStreamFilterContext {
2646
    void *priv_data;
2647
    struct AVBitStreamFilter *filter;
2648
    AVCodecParserContext *parser;
2649
    struct AVBitStreamFilterContext *next;
2650
} AVBitStreamFilterContext;
2651

    
2652

    
2653
typedef struct AVBitStreamFilter {
2654
    const char *name;
2655
    int priv_data_size;
2656
    int (*filter)(AVBitStreamFilterContext *bsfc,
2657
                  AVCodecContext *avctx, const char *args,
2658
                  uint8_t **poutbuf, int *poutbuf_size,
2659
                  const uint8_t *buf, int buf_size, int keyframe);
2660
    struct AVBitStreamFilter *next;
2661
} AVBitStreamFilter;
2662

    
2663
extern AVBitStreamFilter *av_first_bitstream_filter;
2664

    
2665
void av_register_bitstream_filter(AVBitStreamFilter *bsf);
2666
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
2667
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
2668
                               AVCodecContext *avctx, const char *args,
2669
                               uint8_t **poutbuf, int *poutbuf_size,
2670
                               const uint8_t *buf, int buf_size, int keyframe);
2671
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
2672

    
2673
extern AVBitStreamFilter dump_extradata_bsf;
2674
extern AVBitStreamFilter remove_extradata_bsf;
2675
extern AVBitStreamFilter noise_bsf;
2676
extern AVBitStreamFilter mp3_header_compress_bsf;
2677
extern AVBitStreamFilter mp3_header_decompress_bsf;
2678
extern AVBitStreamFilter mjpega_dump_header_bsf;
2679

    
2680

    
2681
/* memory */
2682
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2683
/* for static data only */
2684
/* call av_free_static to release all staticaly allocated tables */
2685
void av_free_static(void);
2686
void *av_mallocz_static(unsigned int size);
2687
void *av_realloc_static(void *ptr, unsigned int size);
2688

    
2689
void img_copy(AVPicture *dst, const AVPicture *src,
2690
              int pix_fmt, int width, int height);
2691

    
2692
int img_crop(AVPicture *dst, const AVPicture *src,
2693
             int pix_fmt, int top_band, int left_band);
2694

    
2695
int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2696
            int padtop, int padbottom, int padleft, int padright, int *color);
2697

    
2698
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2699

    
2700
#ifdef __cplusplus
2701
}
2702
#endif
2703

    
2704
#endif /* AVCODEC_H */