/*************************************************************************** *             __________               __   ___. *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  / *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  < *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \ *                     \/            \/     \/    \/            \/ * $Id: $ * * Copyright (C) 2005 Dave Chapman * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/#ifndef CODECCTX_H#define CODECCTX_H/** * external api header. 01/04/06 Marsdaddy <pajojo@gmail.com> */#ifdef __cplusplusextern "C" {#endifstruct AVCodec;enum CodecID {    CODEC_ID_NONE,    CODEC_ID_MPEG1VIDEO,    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */    CODEC_ID_MPEG2VIDEO_XVMC,    CODEC_ID_H263,    CODEC_ID_RV10,    CODEC_ID_RV20,    CODEC_ID_MP2,    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */    CODEC_ID_VORBIS,    CODEC_ID_AC3,    CODEC_ID_MJPEG,    CODEC_ID_MJPEGB,    CODEC_ID_LJPEG,    CODEC_ID_SP5X,    CODEC_ID_MPEG4,    CODEC_ID_RAWVIDEO,    CODEC_ID_MSMPEG4V1,    CODEC_ID_MSMPEG4V2,    CODEC_ID_MSMPEG4V3,    CODEC_ID_WMV1,    CODEC_ID_WMV2,    CODEC_ID_H263P,    CODEC_ID_H263I,    CODEC_ID_FLV1,    CODEC_ID_SVQ1,    CODEC_ID_SVQ3,    CODEC_ID_DVVIDEO,    CODEC_ID_DVAUDIO,    CODEC_ID_WMAV1,    CODEC_ID_WMAV2,    CODEC_ID_MACE3,    CODEC_ID_MACE6,    CODEC_ID_HUFFYUV,    CODEC_ID_CYUV,    CODEC_ID_H264,    CODEC_ID_INDEO3,    CODEC_ID_VP3,    CODEC_ID_THEORA,    CODEC_ID_AAC,    CODEC_ID_MPEG4AAC,    CODEC_ID_ASV1,    CODEC_ID_ASV2,    CODEC_ID_FFV1,    CODEC_ID_4XM,    CODEC_ID_VCR1,    CODEC_ID_CLJR,    CODEC_ID_MDEC,    CODEC_ID_ROQ,    CODEC_ID_INTERPLAY_VIDEO,    CODEC_ID_XAN_WC3,    CODEC_ID_XAN_WC4,    CODEC_ID_RPZA,    CODEC_ID_CINEPAK,    CODEC_ID_WS_VQA,    CODEC_ID_MSRLE,    CODEC_ID_MSVIDEO1,    CODEC_ID_IDCIN,    CODEC_ID_8BPS,    CODEC_ID_SMC,    CODEC_ID_FLIC,    CODEC_ID_TRUEMOTION1,    CODEC_ID_VMDVIDEO,    CODEC_ID_VMDAUDIO,    CODEC_ID_MSZH,    CODEC_ID_ZLIB,    CODEC_ID_QTRLE,    /* various pcm "codecs" */    CODEC_ID_PCM_S16LE,    CODEC_ID_PCM_S16BE,    CODEC_ID_PCM_U16LE,    CODEC_ID_PCM_U16BE,    CODEC_ID_PCM_S8,    CODEC_ID_PCM_U8,    CODEC_ID_PCM_MULAW,    CODEC_ID_PCM_ALAW,    /* various adpcm codecs */    CODEC_ID_ADPCM_IMA_QT,    CODEC_ID_ADPCM_IMA_WAV,    CODEC_ID_ADPCM_IMA_DK3,    CODEC_ID_ADPCM_IMA_DK4,    CODEC_ID_ADPCM_IMA_WS,    CODEC_ID_ADPCM_IMA_SMJPEG,    CODEC_ID_ADPCM_MS,    CODEC_ID_ADPCM_4XM,    CODEC_ID_ADPCM_XA,    CODEC_ID_ADPCM_ADX,    CODEC_ID_ADPCM_EA,	/* AMR */    CODEC_ID_AMR_NB,    CODEC_ID_AMR_WB,    /* RealAudio codecs*/    CODEC_ID_RA_144,    CODEC_ID_RA_288,    /* various DPCM codecs */    CODEC_ID_ROQ_DPCM,    CODEC_ID_INTERPLAY_DPCM,    CODEC_ID_XAN_DPCM,    CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport                         stream (only used by libavformat) */};enum CodecType {    CODEC_TYPE_UNKNOWN = -1,    CODEC_TYPE_VIDEO,    CODEC_TYPE_AUDIO,    CODEC_TYPE_DATA,};/** * main external api structure. */typedef struct CodecContext {    /**     * the average bitrate.     * - encoding: set by user. unused for constant quantizer encoding     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream     */    int bit_rate;    int bits_per_sample;    /**     * number of bits the bitstream is allowed to diverge from the reference.     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)     * - encoding: set by user. unused for constant quantizer encoding     * - decoding: unused     */    int bit_rate_tolerance;    /**     * CODEC_FLAG_*.     * - encoding: set by user.     * - decoding: set by user.     */    int flags;    /**     * some codecs needs additionnal format info. It is stored here     * - encoding: set by user.     * - decoding: set by lavc. (FIXME is this ok?)     */    int sub_id;    /**     * motion estimation algorithm used for video coding.     * - encoding: MUST be set by user.     * - decoding: unused     */    int me_method;    /**     * some codecs need / can use extra-data like huffman tables.     * mjpeg: huffman tables     * rv10: additional flags     * mpeg4: global headers (they can be in the bitstream or here)     * - encoding: set/allocated/freed by lavc.     * - decoding: set/allocated/freed by user.     */    void *extradata;    int extradata_size;    /* video only */    /**     * frames per sec multiplied by frame_rate_base.     * for variable fps this is the precission, so if the timestamps     * can be specified in msec precssion then this is 1000*frame_rate_base     * - encoding: MUST be set by user     * - decoding: set by lavc. 0 or the frame_rate if available     */    int frame_rate;    /**     * width / height.     * - encoding: MUST be set by user.     * - decoding: set by user if known, codec should override / dynamically change if needed     */    int width, height;#define FF_ASPECT_SQUARE 1#define FF_ASPECT_4_3_625 2#define FF_ASPECT_4_3_525 3#define FF_ASPECT_16_9_625 4#define FF_ASPECT_16_9_525 5#define FF_ASPECT_EXTENDED 15    /**     * the number of pictures in a group of pitures, or 0 for intra_only.     * - encoding: set by user.     * - decoding: unused     */    int gop_size;    /**     * Frame rate emulation. If not zero lower layer (i.e. format handler)     * has to read frames at native frame rate.     * - encoding: set by user.     * - decoding: unused.     */    int rate_emu;    /* audio only */    int sample_rate; ///< samples per sec    int channels;    int sample_fmt;  ///< sample format, currenly unused    /* the following data should not be initialized */    int frame_size;     ///< in samples, initialized when calling 'init'    int frame_number;   ///< audio or video frame number    int real_pict_num;  ///< returns the real picture number of previous encoded frame    struct AVCodec *codec;    void *priv_data; // PJJ    /* statistics, used for 2-pass encoding */    int mv_bits;    int header_bits;    int i_tex_bits;    int p_tex_bits;    int i_count;    int p_count;    int skip_count;    int misc_bits;    /**     * number of bits used for the previously encoded frame.     * - encoding: set by lavc     * - decoding: unused     */    int frame_bits;    /**     * private data of the user, can be used to carry app specific stuff.     * - encoding: set by user     * - decoding: set by user     */    void *opaque;    char codec_name[32];    enum CodecType codec_type; /* see CODEC_TYPE_xxx */    enum CodecID codec_id; /* see CODEC_ID_xxx */    /**     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').     * this is used to workaround some encoder bugs     * - encoding: set by user, if not then the default based on codec_id will be used     * - decoding: set by user, will be converted to upper case by lavc during init     */    unsigned int codec_tag;    /**     * workaround bugs in encoders which sometimes cannot be detected automatically.     * - encoding: unused     * - decoding: set by user     */    int workaround_bugs;    int block_align; ///< used by some WAV based audio codecs    int parse_only; /* - decoding only: if true, only parsing is done                       (function avcodec_parse_frame()). The frame                       data is returned. Only MPEG codecs support this now. */    /**     * 0-> h263 quant 1-> mpeg quant.     * - encoding: set by user.     * - decoding: unused     */    int mpeg_quant;    /**     * pass1 encoding statistics output buffer.     * - encoding: set by lavc     * - decoding: unused     */    char *stats_out;    /**     * pass2 encoding statistics input buffer.     * concatenated stuff from stats_out of pass1 should be placed here     * - encoding: allocated/set/freed by user     * - decoding: unused     */    char *stats_in;    int rc_override_count;    /**     * rate control equation.     * - encoding: set by user