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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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 * @brief 
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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 "common.h"
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#define LIBAVCODEC_VERSION_INT 0x000406
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#define LIBAVCODEC_VERSION     "0.4.6"
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#define LIBAVCODEC_BUILD       4655
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#define LIBAVCODEC_BUILD_STR   "4655"
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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_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_MP2,
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    CODEC_ID_MP3LAME,
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    CODEC_ID_VORBIS,
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    CODEC_ID_AC3,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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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_SVQ1,
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    CODEC_ID_DVVIDEO,
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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_HUFFYUV,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE,
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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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    /* various adpcm codecs */
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    CODEC_ID_ADPCM_IMA_QT,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_MS,
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};
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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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};
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enum PixelFormat {
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    PIX_FMT_YUV420P,
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    PIX_FMT_YUV422,
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    PIX_FMT_RGB24,     /* 3 bytes, R is first */
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    PIX_FMT_BGR24,     /* 3 bytes, B is first */
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    PIX_FMT_YUV422P,
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    PIX_FMT_YUV444P,
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    PIX_FMT_RGBA32,    /* always stored in cpu endianness */
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    PIX_FMT_YUV410P,
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    PIX_FMT_YUV411P,
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    PIX_FMT_RGB565,    /* always stored in cpu endianness */
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    PIX_FMT_RGB555,    /* always stored in cpu endianness, most significant bit to 1 */
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, /* 0 is white */
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    PIX_FMT_MONOBLACK, /* 0 is black */
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    PIX_FMT_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         /* signed 16 bits */
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of zero bytes at the end of the input bitstream for decoding.
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 * to avoid overreading (and possibly segfaulting)
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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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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};
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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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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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/* ME algos sorted by quality */
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static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG, 
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                                       ME_X1, ME_EPZS, ME_FULL };
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#define FF_MAX_B_FRAMES 8
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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: note not everything is supported yet 
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*/
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#define CODEC_FLAG_HQ     0x0001  /* brute force MB-type decission mode (slow) */
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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 */
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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_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/* dont 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 / will fail on b frames */
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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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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
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#define CODEC_CAP_DR1             0x0002 /* direct rendering method 1 */
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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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#define FRAME_RATE_BASE 10000
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#define FF_COMMON_FRAME \
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    uint8_t *data[4];\
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    int linesize[4];\
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    /**\
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     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
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     * this isnt used by lavc unless the default get/release_buffer() is used\
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     * encoding: \
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     * decoding: \
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     */\
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    uint8_t *base[4];\
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    /**\
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     * 1 -> keyframe, 0-> not\
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     * encoding: set by lavc\
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     * decoding: set by lavc\
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     */\
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    int key_frame;\
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\
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    /**\
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     * picture type of the frame, see ?_TYPE below\
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     * encoding: set by lavc for coded_picture (and set by user for input)\
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     * decoding: set by lavc\
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     */\
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    int pict_type;\
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\
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    /**\
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     * presentation timestamp in micro seconds (time when frame should be shown to user)\
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     * if 0 then the frame_rate will be used as reference\
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     * encoding: MUST be set by user\
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     * decoding: set by lavc\
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     */\
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    long long int pts;\
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\
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    /**\
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     * picture number in bitstream order.\
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     * encoding: set by\
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     * decoding: set by lavc\
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     */\
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    int coded_picture_number;\
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    /**\
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     * encoding: set by\
212
     * decoding: set by lavc\
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     * picture number in display order.\
214
     */\
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    int display_picture_number;\
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\
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    /**\
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     * quality (between 1 (good) and 31 (bad)) \
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     * encoding: set by lavc for coded_picture (and set by user for input)\
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     * decoding: set by lavc\
221
     */\
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    float quality; \
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\
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    /**\
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     * buffer age (1->was last buffer and dint change, 2->..., ...).\
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     * set to something large if the buffer has not been used yet \
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     * encoding: unused\
228
     * decoding: MUST be set by get_buffer()\
229
     */\
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    int age;\
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\
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    /**\
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     * is this picture used as reference\
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     * encoding: unused\
235
     * decoding: set by lavc (before get_buffer() call))\
236
     */\
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    int reference;\
238
\
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    /**\
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     * QP table\
241
     * encoding: unused\
242
     * decoding: set by lavc\
243
     */\
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    int8_t *qscale_table;\
245
    /**\
246
     * QP store stride\
247
     * encoding: unused\
248
     * decoding: set by lavc\
249
     */\
250
    int qstride;\
251
\
252
    /**\
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     * mbskip_table[mb]>=1 if MB didnt change\
254
     * stride= mb_width = (width+15)>>4\
255
     * encoding: unused\
256
     * decoding: set by lavc\
257
     */\
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    uint8_t *mbskip_table;\
259
\
260
    /**\
261
     * for some private data of the user\
262
     * encoding: unused\
263
     * decoding: set by user\
264
     */\
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    void *opaque;\
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\
267
    /**\
268
     * error\
269
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR\
270
     * decoding: unused\
271
     */\
272
    uint64_t error[4];\
273
\
274
    /**\
275
     * type of the buffer (to keep track of who has to dealloc data[*])\
276
     * encoding: set by the one who allocs it\
277
     * decoding: set by the one who allocs it\
278
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\ 
279
     */\
280
    int type;\
281

    
282
#define FF_BUFFER_TYPE_INTERNAL 1
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#define FF_BUFFER_TYPE_USER     2 // Direct rendering buffers
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#define FF_BUFFER_TYPE_SHARED   4 // input frame for encoding(wont be dealloced)
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#define FF_I_TYPE 1 // Intra
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#define FF_P_TYPE 2 // Predicted
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#define FF_B_TYPE 3 // Bi-dir predicted
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#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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typedef struct AVFrame {
293
    FF_COMMON_FRAME
294
} AVFrame;
295

    
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typedef struct AVCodecContext {
297
    /**
298
     * the average bitrate
299
     * encoding: set by user. unused for constant quantizer encoding
300
     * decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
301
     */
302
    int bit_rate;
303

    
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    /**
305
     * number of bits the bitstream is allowed to diverge from the reference
306
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
307
     * encoding: set by user. unused for constant quantizer encoding
308
     * decoding: unused
309
     */
310
    int bit_rate_tolerance; 
311

    
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    /**
313
     * CODEC_FLAG_*
314
     * encoding: set by user.
315
     * decoding: set by user.
316
     */
317
    int flags;
318

    
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    /**
320
     * some codecs needs additionnal format info. It is stored here
321
     * encoding: set by user. 
322
     * decoding: set by lavc. (FIXME is this ok?)
323
     */
324
    int sub_id;
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    /**
327
     * motion estimation algorithm used for video coding
328
     * encoding: MUST be set by user.
329
     * decoding: unused
330
     */
331
    int me_method;
332

    
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    /**
334
     * some codecs need / can use extra-data like huffman tables
335
     * mjpeg: huffman tables
336
     * rv10: additional flags
337
     * mpeg4: global headers (they can be in the bitstream or here)
338
     * encoding: set/allocated/freed by lavc.
339
     * decoding: set/allocated/freed by user.
340
     */
341
    void *extradata;
342
    int extradata_size;
343
    
344
    /* video only */
345
    /**
346
     * frames per sec multiplied by FRAME_RATE_BASE
347
     * for variable fps this is the precission, so if the timestamps 
348
     * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
349
     * encoding: MUST be set by user
350
     * decoding: set by lavc. 0 or the frame_rate if available
351
     */
352
    int frame_rate;
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    /**
355
     * encoding: MUST be set by user. 
356
     * decoding: set by user, some codecs might override / change it during playback
357
     */
358
    int width, height;
359
    
360
#define FF_ASPECT_SQUARE 1
361
#define FF_ASPECT_4_3_625 2
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#define FF_ASPECT_4_3_525 3
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#define FF_ASPECT_16_9_625 4
364
#define FF_ASPECT_16_9_525 5
365
#define FF_ASPECT_EXTENDED 15
366

    
367
    /**
368
     * the number of pictures in a group of pitures, or 0 for intra_only
369
     * encoding: set by user.
370
     * decoding: unused
371
     */
372
    int gop_size;
373

    
374
    /**
375
     * pixel format, see PIX_FMT_xxx
376
     * encoding: unused
377
     * decoding: set by lavc.
378
     */
379
    enum PixelFormat pix_fmt;
380
    
381
    int repeat_pict; /* when decoding, this signal how much the picture */
382
                     /* must be delayed.                                */
383
                     /* extra_delay = (repeat_pict / 2) * (1/fps)       */
384
    
385
    /**
386
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
387
     * decoder to draw an horizontal band. It improve cache usage. Not
388
     * all codecs can do that. You must check the codec capabilities
389
     * before
390
     * encoding: unused
391
     * decoding: set by user.
392
     */
393
    void (*draw_horiz_band)(struct AVCodecContext *s,
394
                            UINT8 **src_ptr, int linesize,
395
                            int y, int width, int height);
396

    
397
    /* audio only */
398
    int sample_rate; /* samples per sec */
399
    int channels;
400
    int sample_fmt;  /* sample format, currenly unused */
401

    
402
    /* the following data should not be initialized */
403
    int frame_size;     /* in samples, initialized when calling 'init' */
404
    int frame_number;   /* audio or video frame number */
405
    int real_pict_num;  /* returns the real picture number of
406
                           previous encoded frame */
407
    
408
    /**
409
     * number of frames the decoded output will be delayed relative to 
410
     * the encoded input
411
     * encoding: set by lavc.
412
     * decoding: unused
413
     */
414
    int delay;
415
    
416
    /* encoding parameters */
417
    float qcompress;  /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
418
    float qblur;      /* amount of qscale smoothing over time (0.0-1.0) */
419
    
420
    /**
421
     * minimum quantizer
422
     * encoding: set by user.
423
     * decoding: unused
424
     */
425
    int qmin;
426

    
427
    /**
428
     * maximum quantizer
429
     * encoding: set by user.
430
     * decoding: unused
431
     */
432
    int qmax;
433

    
434
    /**
435
     * maximum quantizer difference etween frames
436
     * encoding: set by user.
437
     * decoding: unused
438
     */
439
    int max_qdiff;
440

    
441
    /**
442
     * maximum number of b frames between non b frames
443
     * note: the output will be delayed by max_b_frames+1 relative to the input
444
     * encoding: set by user.
445
     * decoding: unused
446
     */
447
    int max_b_frames;
448

    
449
    /**
450
     * qscale factor between ip and b frames
451
     * encoding: set by user.
452
     * decoding: unused
453
     */
454
    float b_quant_factor;
455
    
456
    /** obsolete FIXME remove */
457
    int rc_strategy;
458
    int b_frame_strategy;
459

    
460
    /**
461
     * encoding: unused
462
     * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
463
     */
464
    int hurry_up;
465
    
466
    struct AVCodec *codec;
467
    
468
    void *priv_data;
469

    
470
    /* The following data is for RTP friendly coding */
471
    /* By now only H.263/H.263+/MPEG4 coder honours this   */
472
    int rtp_mode;   /* 1 for activate RTP friendly-mode           */
473
                    /* highers numbers represent more error-prone */
474
                    /* enviroments, by now just "1" exist         */
475
    
476
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
477
                            /* do it's best to deliver a chunk with size    */
478
                            /* below rtp_payload_size, the chunk will start */
479
                            /* with a start code on some codecs like H.263  */
480
                            /* This doesn't take account of any particular  */
481
                            /* headers inside the transmited RTP payload    */
482

    
483
    
484
    /* The RTP callcack: This function is called  */
485
    /* every time the encoder as a packet to send */
486
    /* Depends on the encoder if the data starts  */
487
    /* with a Start Code (it should) H.263 does   */
488
    void (*rtp_callback)(void *data, int size, int packet_number); 
489

    
490
    /* statistics, used for 2-pass encoding */
491
    int mv_bits;
492
    int header_bits;
493
    int i_tex_bits;
494
    int p_tex_bits;
495
    int i_count;
496
    int p_count;
497
    int skip_count;
498
    int misc_bits;
499
    
500
    /**
501
     * number of bits used for the previously encoded frame
502
     * encoding: set by lavc
503
     * decoding: - for audio - bits_per_sample
504
     */
505
    int frame_bits;
506
                 
507
    /**
508
     * private data of the user, can be used to carry app specific stuff
509
     * encoding: set by user
510
     * decoding: set by user
511
     */
512
    void *opaque;
513

    
514
    char codec_name[32];
515
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
516
    enum CodecID codec_id; /* see CODEC_ID_xxx */
517
    unsigned int codec_tag;  /* codec tag, only used if unknown codec */
518
    
519
    /**
520
     * workaround bugs in encoders which sometimes cannot be detected automatically
521
     * encoding: unused
522
     * decoding: set by user
523
     */
524
    int workaround_bugs;
525
#define FF_BUG_AUTODETECT       1  //autodetection
526
#define FF_BUG_OLD_MSMPEG4      2
527
#define FF_BUG_XVID_ILACE       4
528
#define FF_BUG_UMP4             8
529
#define FF_BUG_NO_PADDING       16
530
#define FF_BUG_AC_VLC           32
531
#define FF_BUG_QPEL_CHROMA      64
532
#define FF_BUG_STD_QPEL         128
533
#define FF_BUG_QPEL_CHROMA2     256
534
#define FF_BUG_DIRECT_BLOCKSIZE 512
535
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
536
        
537
    /**
538
     * encoding: set by user
539
     * decoding: unused
540
     */
541
    int luma_elim_threshold;
542
    
543
    /**
544
     * encoding: set by user
545
     * decoding: unused
546
     */
547
    int chroma_elim_threshold;
548
    
549
    /**
550
     * strictly follow the std (MPEG4, ...)
551
     * encoding: set by user
552
     * decoding: unused
553
     */
554
    int strict_std_compliance;
555
    
556
    /**
557
     * qscale offset between ip and b frames
558
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
559
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
560
     * encoding: set by user.
561
     * decoding: unused
562
     */
563
    float b_quant_offset;
564
    
565
    /**
566
     * error resilience higher values will detect more errors but may missdetect
567
     * some more or less valid parts as errors
568
     * encoding: unused
569
     * decoding: set by user
570
     */
571
    int error_resilience;
572
#define FF_ER_CAREFULL        1
573
#define FF_ER_COMPLIANT       2
574
#define FF_ER_AGGRESSIVE      3
575
#define FF_ER_VERY_AGGRESSIVE 4
576
    
577
    /**
578
     * called at the beginning of each frame to get a buffer for it.
579
     * if pic.reference is set then the frame will be read later by lavc
580
     * encoding: unused
581
     * decoding: set by lavc, user can override
582
     */
583
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
584
    
585
    /**
586
     * called to release buffers which where allocated with get_buffer.
587
     * a released buffer can be reused in get_buffer()
588
     * pic.data[*] must be set to NULL
589
     * encoding: unused
590
     * decoding: set by lavc, user can override
591
     */
592
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
593

    
594
    /**
595
     * is 1 if the decoded stream contains b frames, 0 otherwise
596
     * encoding: unused
597
     * decoding: set by lavc
598
     */
599
    int has_b_frames;
600
    
601
    int block_align; /* used by some WAV based audio codecs */
602
    
603
    int parse_only; /* decoding only: if true, only parsing is done
604
                       (function avcodec_parse_frame()). The frame
605
                       data is returned. Only MPEG codecs support this now. */
606
    
607
    /**
608
     * 0-> h263 quant 1-> mpeg quant
609
     * encoding: set by user.
610
     * decoding: unused
611
     */
612
    int mpeg_quant;
613
    
614
    /**
615
     * pass1 encoding statistics output buffer
616
     * encoding: set by lavc
617
     * decoding: unused
618
     */
619
    char *stats_out; /* encoding statistics output buffer */
620
    
621
    /**
622
     * pass2 encoding statistics input buffer.
623
     * concatenated stuff from stats_out of pass1 should be placed here
624
     * encoding: allocated/set/freed by user
625
     * decoding: unused
626
     */
627
    char *stats_in;
628
    
629
    /**
630
     * ratecontrol qmin qmax limiting method
631
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
632
     * encoding: set by user.
633
     * decoding: unused
634
     */
635
    float rc_qsquish;
636

    
637
    float rc_qmod_amp;
638
    int rc_qmod_freq;
639
    
640
    /**
641
     * ratecontrol override, see RcOverride
642
     * encoding: allocated/set/freed by user.
643
     * decoding: unused
644
     */
645
    RcOverride *rc_override;
646
    int rc_override_count;
647
    
648
    /**
649
     * rate control equation
650
     * encoding: set by user
651
     * decoding: unused
652
     */
653
    char *rc_eq;
654
    
655
    /**
656
     * maximum bitrate
657
     * encoding: set by user.
658
     * decoding: unused
659
     */
660
    int rc_max_rate;
661
    
662
    /**
663
     * minimum bitrate
664
     * encoding: set by user.
665
     * decoding: unused
666
     */
667
    int rc_min_rate;
668
    
669
    /**
670
     * decoder bitstream buffer size
671
     * encoding: set by user.
672
     * decoding: unused
673
     */
674
    int rc_buffer_size;
675
    float rc_buffer_aggressivity;
676

    
677
    /**
678
     * qscale factor between p and i frames
679
     * encoding: set by user.
680
     * decoding: unused
681
     */
682
    float i_quant_factor;
683
    
684
    /**
685
     * qscale offset between p and i frames
686
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
687
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
688
     * encoding: set by user.
689
     * decoding: unused
690
     */
691
    float i_quant_offset;
692
    
693
    /**
694
     * initial complexity for pass1 ratecontrol
695
     * encoding: set by user.
696
     * decoding: unused
697
     */
698
    float rc_initial_cplx;
699

    
700
    /**
701
     * dct algorithm, see FF_DCT_* below
702
     * encoding: set by user
703
     * decoding: unused
704
     */
705
    int dct_algo;
706
#define FF_DCT_AUTO    0
707
#define FF_DCT_FASTINT 1
708
#define FF_DCT_INT     2
709
#define FF_DCT_MMX     3
710
#define FF_DCT_MLIB    4
711
#define FF_DCT_ALTIVEC 5
712
    
713
    /**
714
     * luminance masking (0-> disabled)
715
     * encoding: set by user
716
     * decoding: unused
717
     */
718
    float lumi_masking;
719
    
720
    /**
721
     * temporary complexity masking (0-> disabled)
722
     * encoding: set by user
723
     * decoding: unused
724
     */
725
    float temporal_cplx_masking;
726
    
727
    /**
728
     * spatial complexity masking (0-> disabled)
729
     * encoding: set by user
730
     * decoding: unused
731
     */
732
    float spatial_cplx_masking;
733
    
734
    /**
735
     * p block masking (0-> disabled)
736
     * encoding: set by user
737
     * decoding: unused
738
     */
739
    float p_masking;
740

    
741
    /**
742
     * darkness masking (0-> disabled)
743
     * encoding: set by user
744
     * decoding: unused
745
     */
746
    float dark_masking;
747
    
748
    /**
749
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
750
     * this is used to workaround some encoder bugs
751
     * encoding: unused
752
     * decoding: set by user, will be converted to upper case by lavc during init
753
     */
754
    int fourcc;
755

    
756
    /**
757
     * idct algorithm, see FF_IDCT_* below
758
     * encoding: set by user
759
     * decoding: set by user
760
     */
761
    int idct_algo;
762
#define FF_IDCT_AUTO         0
763
#define FF_IDCT_INT          1
764
#define FF_IDCT_SIMPLE       2
765
#define FF_IDCT_SIMPLEMMX    3
766
#define FF_IDCT_LIBMPEG2MMX  4
767
#define FF_IDCT_PS2          5
768
#define FF_IDCT_MLIB         6
769
#define FF_IDCT_ARM          7
770
#define FF_IDCT_ALTIVEC      8
771

    
772
    /**
773
     * slice count
774
     * encoding: set by lavc
775
     * decoding: set by user (or 0)
776
     */
777
    int slice_count;
778
    /**
779
     * slice offsets in the frame in bytes
780
     * encoding: set/allocated by lavc
781
     * decoding: set/allocated by user (or NULL)
782
     */
783
    int *slice_offset;
784

    
785
    /**
786
     * error concealment flags
787
     * encoding: unused
788
     * decoding: set by user
789
     */
790
    int error_concealment;
791
#define FF_EC_GUESS_MVS   1
792
#define FF_EC_DEBLOCK     2
793

    
794
    /**
795
     * dsp_mask could be used to disable unwanted
796
     * CPU features (i.e. MMX, SSE. ...)
797
     */
798
     unsigned dsp_mask;
799

    
800
    /**
801
     * bits per sample/pixel from the demuxer (needed for huffyuv)
802
     * encoding: set by lavc
803
     * decoding: set by user
804
     */
805
     int bits_per_sample;
806
    
807
    /**
808
     * prediction method (needed for huffyuv)
809
     * encoding: set by user
810
     * decoding: unused
811
     */
812
     int prediction_method;
813
#define FF_PRED_LEFT   0
814
#define FF_PRED_PLANE  1
815
#define FF_PRED_MEDIAN 2
816
    
817
    /**
818
     * aspect ratio. (0 if unknown)
819
     * encoding: set by user.
820
     * decoding: set by lavc.
821
     */
822
    float aspect_ratio;
823

    
824
    /**
825
     * the picture in the bitstream
826
     * encoding: set by lavc
827
     * decoding: set by lavc
828
     */
829
    AVFrame *coded_frame;
830

    
831
    /**
832
     * debug 
833
     * encoding: set by user.
834
     * decoding: set by user.
835
     */
836
    int debug;
837
#define FF_DEBUG_PICT_INFO 1
838
#define FF_DEBUG_RC        2
839
#define FF_DEBUG_BITSTREAM 4
840
#define FF_DEBUG_MB_TYPE   8
841
#define FF_DEBUG_QP        16
842
#define FF_DEBUG_MV        32
843
#define FF_DEBUG_VIS_MV    0x00000040
844
#define FF_DEBUG_SKIP      0x00000080
845
#define FF_DEBUG_STARTCODE 0x00000100
846
#define FF_DEBUG_PTS       0x00000200
847
    
848
    /**
849
     * error
850
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR
851
     * decoding: unused
852
     */
853
    uint64_t error[4];
854
    
855
    /**
856
     * minimum MB quantizer
857
     * encoding: set by user.
858
     * decoding: unused
859
     */
860
    int mb_qmin;
861

    
862
    /**
863
     * maximum MB quantizer
864
     * encoding: set by user.
865
     * decoding: unused
866
     */
867
    int mb_qmax;
868
    
869
    /**
870
     * motion estimation compare function
871
     * encoding: set by user.
872
     * decoding: unused
873
     */
874
    int me_cmp;
875
    /**
876
     * subpixel motion estimation compare function
877
     * encoding: set by user.
878
     * decoding: unused
879
     */
880
    int me_sub_cmp;
881
    /**
882
     * macroblock compare function (not supported yet)
883
     * encoding: set by user.
884
     * decoding: unused
885
     */
886
    int mb_cmp;
887
#define FF_CMP_SAD  0
888
#define FF_CMP_SSE  1
889
#define FF_CMP_SATD 2
890
#define FF_CMP_DCT  3
891
#define FF_CMP_PSNR 4
892
#define FF_CMP_BIT  5
893
#define FF_CMP_RD   6
894
#define FF_CMP_ZERO 7
895
#define FF_CMP_CHROMA 256
896
    
897
    /**
898
     * ME diamond size & shape
899
     * encoding: set by user.
900
     * decoding: unused
901
     */
902
    int dia_size;
903

    
904
    /**
905
     * amount of previous MV predictors (2a+1 x 2a+1 square)
906
     * encoding: set by user.
907
     * decoding: unused
908
     */
909
    int last_predictor_count;
910

    
911
    /**
912
     * pre pass for motion estimation
913
     * encoding: set by user.
914
     * decoding: unused
915
     */
916
    int pre_me;
917

    
918
    /**
919
     * motion estimation pre pass compare function
920
     * encoding: set by user.
921
     * decoding: unused
922
     */
923
    int me_pre_cmp;
924

    
925
    /**
926
     * ME pre pass diamond size & shape
927
     * encoding: set by user.
928
     * decoding: unused
929
     */
930
    int pre_dia_size;
931

    
932
    /**
933
     * subpel ME quality
934
     * encoding: set by user.
935
     * decoding: unused
936
     */
937
    int me_subpel_quality;
938

    
939
    /**
940
     * callback to negotiate the pixelFormat
941
     * @param fmt is the list of formats which are supported by the codec,
942
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
943
     * the first is allways the native one
944
     * @return the choosen format
945
     * encoding: unused
946
     * decoding: set by user, if not set then the native format will always be choosen
947
     */
948
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
949
} AVCodecContext;
950

    
951
typedef struct AVCodec {
952
    const char *name;
953
    int type;
954
    int id;
955
    int priv_data_size;
956
    int (*init)(AVCodecContext *);
957
    int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
958
    int (*close)(AVCodecContext *);
959
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
960
                  UINT8 *buf, int buf_size);
961
    int capabilities;
962
    struct AVCodec *next;
963
} AVCodec;
964

    
965
/** 
966
 * four components are given, that's all.
967
 * the last component is alpha
968
 */
969
typedef struct AVPicture {
970
    UINT8 *data[4];
971
    int linesize[4];
972
} AVPicture;
973

    
974
extern AVCodec ac3_encoder;
975
extern AVCodec mp2_encoder;
976
extern AVCodec mp3lame_encoder;
977
extern AVCodec oggvorbis_encoder;
978
extern AVCodec mpeg1video_encoder;
979
extern AVCodec h263_encoder;
980
extern AVCodec h263p_encoder;
981
extern AVCodec rv10_encoder;
982
extern AVCodec mjpeg_encoder;
983
extern AVCodec mpeg4_encoder;
984
extern AVCodec msmpeg4v1_encoder;
985
extern AVCodec msmpeg4v2_encoder;
986
extern AVCodec msmpeg4v3_encoder;
987
extern AVCodec wmv1_encoder;
988
extern AVCodec wmv2_encoder;
989
extern AVCodec huffyuv_encoder;
990

    
991
extern AVCodec h263_decoder;
992
extern AVCodec mpeg4_decoder;
993
extern AVCodec msmpeg4v1_decoder;
994
extern AVCodec msmpeg4v2_decoder;
995
extern AVCodec msmpeg4v3_decoder;
996
extern AVCodec wmv1_decoder;
997
extern AVCodec wmv2_decoder;
998
extern AVCodec mpeg_decoder;
999
extern AVCodec h263i_decoder;
1000
extern AVCodec rv10_decoder;
1001
extern AVCodec svq1_decoder;
1002
extern AVCodec dvvideo_decoder;
1003
extern AVCodec dvaudio_decoder;
1004
extern AVCodec wmav1_decoder;
1005
extern AVCodec wmav2_decoder;
1006
extern AVCodec mjpeg_decoder;
1007
extern AVCodec mjpegb_decoder;
1008
extern AVCodec mp2_decoder;
1009
extern AVCodec mp3_decoder;
1010
extern AVCodec mace3_decoder;
1011
extern AVCodec mace6_decoder;
1012
extern AVCodec huffyuv_decoder;
1013
extern AVCodec oggvorbis_decoder;
1014

    
1015
/* pcm codecs */
1016
#define PCM_CODEC(id, name) \
1017
extern AVCodec name ## _decoder; \
1018
extern AVCodec name ## _encoder
1019

    
1020
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1021
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1022
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1023
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1024
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1025
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1026
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1027
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1028

    
1029
/* adpcm codecs */
1030

    
1031
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1032
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1033
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1034

    
1035
#undef PCM_CODEC
1036

    
1037
/* dummy raw video codec */
1038
extern AVCodec rawvideo_codec;
1039

    
1040
/* the following codecs use external GPL libs */
1041
extern AVCodec ac3_decoder;
1042

    
1043
/* resample.c */
1044

    
1045
struct ReSampleContext;
1046

    
1047
typedef struct ReSampleContext ReSampleContext;
1048

    
1049
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1050
                                     int output_rate, int input_rate);
1051
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1052
void audio_resample_close(ReSampleContext *s);
1053

    
1054
/* YUV420 format is assumed ! */
1055

    
1056
struct ImgReSampleContext;
1057

    
1058
typedef struct ImgReSampleContext ImgReSampleContext;
1059

    
1060
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1061
                                      int input_width, int input_height);
1062

    
1063
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1064
                                      int iwidth, int iheight,
1065
                                      int topBand, int bottomBand,
1066
                                      int leftBand, int rightBand);
1067

    
1068
void img_resample(ImgReSampleContext *s, 
1069
                  AVPicture *output, AVPicture *input);
1070

    
1071
void img_resample_close(ImgReSampleContext *s);
1072

    
1073
int avpicture_fill(AVPicture *picture, UINT8 *ptr,
1074
                   int pix_fmt, int width, int height);
1075
int avpicture_get_size(int pix_fmt, int width, int height);
1076
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1077
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1078

    
1079
/* convert among pixel formats */
1080
int img_convert(AVPicture *dst, int dst_pix_fmt,
1081
                AVPicture *src, int pix_fmt, 
1082
                int width, int height);
1083

    
1084
/* deinterlace a picture */
1085
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
1086
                          int pix_fmt, int width, int height);
1087

    
1088
/* external high level API */
1089

    
1090
extern AVCodec *first_avcodec;
1091

    
1092
/* returns LIBAVCODEC_VERSION_INT constant */
1093
unsigned avcodec_version(void);
1094
/* returns LIBAVCODEC_BUILD constant */
1095
unsigned avcodec_build(void);
1096
void avcodec_init(void);
1097

    
1098
void avcodec_set_bit_exact(void);
1099

    
1100
void register_avcodec(AVCodec *format);
1101
AVCodec *avcodec_find_encoder(enum CodecID id);
1102
AVCodec *avcodec_find_encoder_by_name(const char *name);
1103
AVCodec *avcodec_find_decoder(enum CodecID id);
1104
AVCodec *avcodec_find_decoder_by_name(const char *name);
1105
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1106

    
1107
void avcodec_get_context_defaults(AVCodecContext *s);
1108
AVCodecContext *avcodec_alloc_context(void);
1109
AVFrame *avcodec_alloc_frame(void);
1110

    
1111
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1112
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1113

    
1114
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1115
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples, 
1116
                         int *frame_size_ptr,
1117
                         UINT8 *buf, int buf_size);
1118
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1119
                         int *got_picture_ptr,
1120
                         UINT8 *buf, int buf_size);
1121
int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata, 
1122
                        int *data_size_ptr,
1123
                        UINT8 *buf, int buf_size);
1124
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1125
                         const short *samples);
1126
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1127
                         const AVFrame *pict);
1128

    
1129
int avcodec_close(AVCodecContext *avctx);
1130

    
1131
void avcodec_register_all(void);
1132

    
1133
void avcodec_flush_buffers(AVCodecContext *avctx);
1134

    
1135
typedef struct {
1136
    /** options' name with default value*/
1137
    const char* name;
1138
    /** English text help */
1139
    const char* help;
1140
    /** type of variable */
1141
    int type;
1142
#define FF_CONF_TYPE_BOOL 1     // boolean - true,1,on  (or simply presence)
1143
#define FF_CONF_TYPE_DOUBLE 2   // double
1144
#define FF_CONF_TYPE_INT 3      // integer
1145
#define FF_CONF_TYPE_STRING 4   // string (finished with \0)
1146
#define FF_CONF_TYPE_MASK 0x1f        // mask for types - upper bits are various flags
1147
#define FF_CONF_TYPE_EXPERT 0x20 // flag for expert option
1148
#define FF_CONF_TYPE_FLAG (FF_CONF_TYPE_BOOL | 0x40)
1149
#define FF_CONF_TYPE_RCOVERIDE (FF_CONF_TYPE_STRING | 0x80)
1150
    /** where the parsed value should be stored */
1151
    void* val;
1152
    /** min value  (min == max   ->  no limits) */
1153
    double min;
1154
    /** maximum value for double/int */
1155
    double max;
1156
    /** default boo [0,1]l/double/int value */
1157
    double defval;
1158
    /**
1159
     * default string value (with optional semicolon delimited extra option-list
1160
     * i.e.   option1;option2;option3
1161
     * defval might select other then first argument as default
1162
     */
1163
    const char* defstr;
1164
    /** char* list of supported codecs (i.e. ",msmpeg4,h263," NULL - everything */
1165
    const char* supported;
1166
} avc_config_t;
1167

    
1168
void avcodec_getopt(AVCodecContext* avctx, const char* str, avc_config_t** config);
1169

    
1170
/**
1171
 * Interface for 0.5.0 version
1172
 *
1173
 * do not even think about it's usage for this moment
1174
 */
1175

    
1176
typedef struct {
1177
    // compressed size used from given memory buffer
1178
    int size;
1179
    /// I/P/B frame type
1180
    int frame_type;
1181
} avc_enc_result_t;
1182

    
1183
/**
1184
 * Commands
1185
 * order can't be changed - once it was defined
1186
 */
1187
typedef enum {
1188
    // general commands
1189
    AVC_OPEN_BY_NAME = 0xACA000,
1190
    AVC_OPEN_BY_CODEC_ID,
1191
    AVC_OPEN_BY_FOURCC,
1192
    AVC_CLOSE,
1193

    
1194
    AVC_FLUSH,
1195
    // pin - struct { uint8_t* src, uint_t src_size }
1196
    // pout - struct { AVPicture* img, consumed_bytes,
1197
    AVC_DECODE,
1198
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1199
    // pout - uint_t used_from_dest_size
1200
    AVC_ENCODE, 
1201

    
1202
    // query/get video commands
1203
    AVC_GET_VERSION = 0xACB000,
1204
    AVC_GET_WIDTH,
1205
    AVC_GET_HEIGHT,
1206
    AVC_GET_DELAY,
1207
    AVC_GET_QUANT_TABLE,
1208
    // ...
1209

    
1210
    // query/get audio commands
1211
    AVC_GET_FRAME_SIZE = 0xABC000,
1212

    
1213
    // maybe define some simple structure which
1214
    // might be passed to the user - but they can't
1215
    // contain any codec specific parts and these
1216
    // calls are usualy necessary only few times
1217

    
1218
    // set video commands
1219
    AVC_SET_WIDTH = 0xACD000,
1220
    AVC_SET_HEIGHT,
1221

    
1222
    // set video encoding commands
1223
    AVC_SET_FRAME_RATE = 0xACD800,
1224
    AVC_SET_QUALITY,
1225
    AVC_SET_HURRY_UP,
1226

    
1227
    // set audio commands
1228
    AVC_SET_SAMPLE_RATE = 0xACE000,
1229
    AVC_SET_CHANNELS,
1230

    
1231
} avc_cmd_t;
1232

    
1233
/**
1234
 * \param handle  allocated private structure by libavcodec
1235
 *                for initialization pass NULL - will be returned pout
1236
 *                user is supposed to know nothing about its structure
1237
 * \param cmd     type of operation to be performed
1238
 * \param pint    input parameter
1239
 * \param pout    output parameter
1240
 *
1241
 * \returns  command status - eventually for query command it might return
1242
 * integer resulting value
1243
 */
1244
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1245

    
1246
/* memory */
1247
void *av_malloc(unsigned int size);
1248
void *av_mallocz(unsigned int size);
1249
void *av_realloc(void *ptr, unsigned int size);
1250
void av_free(void *ptr);
1251
char *av_strdup(const char *s);
1252
void __av_freep(void **ptr);
1253
#define av_freep(p) __av_freep((void **)(p))
1254
void *av_fast_realloc(void *ptr, int *size, int min_size);
1255
/* for static data only */
1256
/* call av_free_static to release all staticaly allocated tables */
1257
void av_free_static(void);
1258
void *__av_mallocz_static(void** location, unsigned int size);
1259
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
1260

    
1261
#ifdef __cplusplus
1262
}
1263
#endif
1264

    
1265
#endif /* AVCODEC_H */