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#ifndef AVCODEC_H
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#define AVCODEC_H
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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       4643
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#define LIBAVCODEC_BUILD_STR   "4643"
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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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};
61

    
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enum PixelFormat {
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    PIX_FMT_ANY = -1,
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    PIX_FMT_YUV420P,
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    PIX_FMT_YUV422,
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    PIX_FMT_RGB24,
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    PIX_FMT_BGR24,
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    PIX_FMT_YUV422P,
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    PIX_FMT_YUV444P,
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    PIX_FMT_RGBA32,
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    PIX_FMT_BGRA32,
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    PIX_FMT_YUV410P,
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    PIX_FMT_YUV411P,
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    PIX_FMT_RGB565,
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    PIX_FMT_RGB555,
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//    PIX_FMT_RGB5551,
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    PIX_FMT_BGR565,
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    PIX_FMT_BGR555,
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//    PIX_FMT_GBR565,
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//    PIX_FMT_GBR555
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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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};
87

    
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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 4
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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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*/
128

    
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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 */
150

    
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/* codec capabilities */
152

    
153
#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_PICTURE \
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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: \
169
     * 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\
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     * decoding: set by lavc\
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     * picture number in display order.\
204
     */\
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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\
211
     */\
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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\
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     * decoding: MUST be set by get_buffer()\
219
     */\
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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\
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     * decoding: set by lavc (before get_buffer() call))\
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     */\
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    int reference;\
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\
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    /**\
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     * QP table\
231
     * encoding: unused\
232
     * decoding: set by lavc\
233
     */\
234
    int8_t *qscale_table;\
235
    /**\
236
     * QP store stride\
237
     * encoding: unused\
238
     * decoding: set by lavc\
239
     */\
240
    int qstride;\
241
\
242
    /**\
243
     * mbskip_table[mb]>=1 if MB didnt change\
244
     * stride= mb_width = (width+15)>>4\
245
     * encoding: unused\
246
     * decoding: set by lavc\
247
     */\
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    uint8_t *mbskip_table;\
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\
250
    /**\
251
     * for some private data of the user\
252
     * encoding: unused\
253
     * decoding: set by user\
254
     */\
255
    void *opaque;\
256
\
257
    /**\
258
     * error\
259
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR\
260
     * decoding: unused\
261
     */\
262
    uint64_t error[4];\
263

    
264
#define FF_I_TYPE 1 // Intra
265
#define FF_P_TYPE 2 // Predicted
266
#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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269
typedef struct AVVideoFrame {
270
    FF_COMMON_PICTURE
271
} AVVideoFrame;
272

    
273
typedef struct AVCodecContext {
274
    /**
275
     * the average bitrate
276
     * encoding: set by user. unused for constant quantizer encoding
277
     * decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
278
     */
279
    int bit_rate;
280

    
281
    /**
282
     * number of bits the bitstream is allowed to diverge from the reference
283
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
284
     * encoding: set by user. unused for constant quantizer encoding
285
     * decoding: unused
286
     */
287
    int bit_rate_tolerance; 
288

    
289
    /**
290
     * CODEC_FLAG_*
291
     * encoding: set by user.
292
     * decoding: set by user.
293
     */
294
    int flags;
295

    
296
    /**
297
     * some codecs needs additionnal format info. It is stored here
298
     * encoding: set by user. 
299
     * decoding: set by lavc. (FIXME is this ok?)
300
     */
301
    int sub_id;
302

    
303
    /**
304
     * motion estimation algorithm used for video coding
305
     * encoding: MUST be set by user.
306
     * decoding: unused
307
     */
308
    int me_method;
309

    
310
    /**
311
     * some codecs need / can use extra-data like huffman tables
312
     * mjpeg: huffman tables
313
     * rv10: additional flags
314
     * mpeg4: global headers (they can be in the bitstream or here)
315
     * encoding: set/allocated/freed by lavc.
316
     * decoding: set/allocated/freed by user.
317
     */
318
    void *extradata;
319
    int extradata_size;
320
    
321
    /* video only */
322
    /**
323
     * frames per sec multiplied by FRAME_RATE_BASE
324
     * for variable fps this is the precission, so if the timestamps 
325
     * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
326
     * encoding: MUST be set by user
327
     * decoding: set by lavc. 0 or the frame_rate if available
328
     */
329
    int frame_rate;
330

    
331
    /**
332
     * encoding: MUST be set by user. 
333
     * decoding: set by user, some codecs might override / change it during playback
334
     */
335
    int width, height;
336
    
337
#define FF_ASPECT_SQUARE 1
338
#define FF_ASPECT_4_3_625 2
339
#define FF_ASPECT_4_3_525 3
340
#define FF_ASPECT_16_9_625 4
341
#define FF_ASPECT_16_9_525 5
342
#define FF_ASPECT_EXTENDED 15
343

    
344
    /**
345
     * the number of pictures in a group of pitures, or 0 for intra_only
346
     * encoding: set by user.
347
     * decoding: unused
348
     */
349
    int gop_size;
350

    
351
    /**
352
     * pixel format, see PIX_FMT_xxx
353
     * encoding: unused
354
     * decoding: set by lavc.
355
     */
356
    enum PixelFormat pix_fmt;
357
    
358
    int repeat_pict; /* when decoding, this signal how much the picture */
359
                     /* must be delayed.                                */
360
                     /* extra_delay = (repeat_pict / 2) * (1/fps)       */
361
    
362
    /**
363
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
364
     * decoder to draw an horizontal band. It improve cache usage. Not
365
     * all codecs can do that. You must check the codec capabilities
366
     * before
367
     * encoding: unused
368
     * decoding: set by user.
369
     */
370
    void (*draw_horiz_band)(struct AVCodecContext *s,
371
                            UINT8 **src_ptr, int linesize,
372
                            int y, int width, int height);
373

    
374
    /* audio only */
375
    int sample_rate; /* samples per sec */
376
    int channels;
377
    int sample_fmt;  /* sample format, currenly unused */
378

    
379
    /* the following data should not be initialized */
380
    int frame_size;     /* in samples, initialized when calling 'init' */
381
    int frame_number;   /* audio or video frame number */
382
    int real_pict_num;  /* returns the real picture number of
383
                           previous encoded frame */
384
    
385
    /**
386
     * 1 -> keyframe, 0-> not (this if for audio only, for video, AVVideoFrame.key_frame should be used)
387
     * encoding: set by lavc (for the outputed bitstream, not the input frame)
388
     * decoding: set by lavc (for the decoded  bitstream, not the displayed frame)
389
     */
390
    int key_frame;
391

    
392
    /**
393
     * number of frames the decoded output will be delayed relative to 
394
     * the encoded input
395
     * encoding: set by lavc.
396
     * decoding: unused
397
     */
398
    int delay;
399
    
400
    /* encoding parameters */
401
    float qcompress;  /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
402
    float qblur;      /* amount of qscale smoothing over time (0.0-1.0) */
403
    
404
    /**
405
     * minimum quantizer
406
     * encoding: set by user.
407
     * decoding: unused
408
     */
409
    int qmin;
410

    
411
    /**
412
     * maximum quantizer
413
     * encoding: set by user.
414
     * decoding: unused
415
     */
416
    int qmax;
417

    
418
    /**
419
     * maximum quantizer difference etween frames
420
     * encoding: set by user.
421
     * decoding: unused
422
     */
423
    int max_qdiff;
424

    
425
    /**
426
     * maximum number of b frames between non b frames
427
     * note: the output will be delayed by max_b_frames+1 relative to the input
428
     * encoding: set by user.
429
     * decoding: unused
430
     */
431
    int max_b_frames;
432

    
433
    /**
434
     * qscale factor between ip and b frames
435
     * encoding: set by user.
436
     * decoding: unused
437
     */
438
    float b_quant_factor;
439
    
440
    /** obsolete FIXME remove */
441
    int rc_strategy;
442
    int b_frame_strategy;
443

    
444
    /**
445
     * encoding: unused
446
     * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
447
     */
448
    int hurry_up;
449
    
450
    struct AVCodec *codec;
451
    
452
    void *priv_data;
453

    
454
    /* The following data is for RTP friendly coding */
455
    /* By now only H.263/H.263+/MPEG4 coder honours this   */
456
    int rtp_mode;   /* 1 for activate RTP friendly-mode           */
457
                    /* highers numbers represent more error-prone */
458
                    /* enviroments, by now just "1" exist         */
459
    
460
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
461
                            /* do it's best to deliver a chunk with size    */
462
                            /* below rtp_payload_size, the chunk will start */
463
                            /* with a start code on some codecs like H.263  */
464
                            /* This doesn't take account of any particular  */
465
                            /* headers inside the transmited RTP payload    */
466

    
467
    
468
    /* The RTP callcack: This function is called  */
469
    /* every time the encoder as a packet to send */
470
    /* Depends on the encoder if the data starts  */
471
    /* with a Start Code (it should) H.263 does   */
472
    void (*rtp_callback)(void *data, int size, int packet_number); 
473

    
474
    /* statistics, used for 2-pass encoding */
475
    int mv_bits;
476
    int header_bits;
477
    int i_tex_bits;
478
    int p_tex_bits;
479
    int i_count;
480
    int p_count;
481
    int skip_count;
482
    int misc_bits;
483
    
484
    /**
485
     * number of bits used for the previously encoded frame
486
     * encoding: set by lavc
487
     * decoding: - for audio - bits_per_sample
488
     */
489
    int frame_bits;
490
                 
491
    /**
492
     * private data of the user, can be used to carry app specific stuff
493
     * encoding: set by user
494
     * decoding: set by user
495
     */
496
    void *opaque;
497

    
498
    char codec_name[32];
499
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
500
    enum CodecID codec_id; /* see CODEC_ID_xxx */
501
    unsigned int codec_tag;  /* codec tag, only used if unknown codec */
502
    
503
    /**
504
     * workaround bugs in encoders which sometimes cannot be detected automatically
505
     * encoding: unused
506
     * decoding: set by user
507
     */
508
    int workaround_bugs;
509
#define FF_BUG_AUTODETECT       1  //autodetection
510
#define FF_BUG_OLD_MSMPEG4      2
511
#define FF_BUG_XVID_ILACE       4
512
#define FF_BUG_UMP4             8
513
#define FF_BUG_NO_PADDING       16
514
#define FF_BUG_AC_VLC           32
515
#define FF_BUG_QPEL_CHROMA      64
516
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
517
        
518
    /**
519
     * encoding: set by user
520
     * decoding: unused
521
     */
522
    int luma_elim_threshold;
523
    
524
    /**
525
     * encoding: set by user
526
     * decoding: unused
527
     */
528
    int chroma_elim_threshold;
529
    
530
    /**
531
     * strictly follow the std (MPEG4, ...)
532
     * encoding: set by user
533
     * decoding: unused
534
     */
535
    int strict_std_compliance;
536
    
537
    /**
538
     * qscale offset between ip and b frames
539
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
540
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
541
     * encoding: set by user.
542
     * decoding: unused
543
     */
544
    float b_quant_offset;
545
    
546
    /**
547
     * error resilience higher values will detect more errors but may missdetect
548
     * some more or less valid parts as errors
549
     * encoding: unused
550
     * decoding: set by user
551
     */
552
    int error_resilience;
553
#define FF_ER_CAREFULL        1
554
#define FF_ER_COMPLIANT       2
555
#define FF_ER_AGGRESSIVE      3
556
#define FF_ER_VERY_AGGRESSIVE 4
557
    
558
    /**
559
     * called at the beginning of each frame to get a buffer for it.
560
     * if pic.reference is set then the frame will be read later by lavc
561
     * encoding: unused
562
     * decoding: set by lavc, user can override
563
     */
564
    int (*get_buffer)(struct AVCodecContext *c, AVVideoFrame *pic);
565
    
566
    /**
567
     * called to release buffers which where allocated with get_buffer.
568
     * a released buffer can be reused in get_buffer()
569
     * pic.data[*] must be set to NULL
570
     * encoding: unused
571
     * decoding: set by lavc, user can override
572
     */
573
    void (*release_buffer)(struct AVCodecContext *c, AVVideoFrame *pic);
574

    
575
    /**
576
     * is 1 if the decoded stream contains b frames, 0 otherwise
577
     * encoding: unused
578
     * decoding: set by lavc
579
     */
580
    int has_b_frames;
581
    
582
    int block_align; /* used by some WAV based audio codecs */
583
    
584
    int parse_only; /* decoding only: if true, only parsing is done
585
                       (function avcodec_parse_frame()). The frame
586
                       data is returned. Only MPEG codecs support this now. */
587
    
588
    /**
589
     * 0-> h263 quant 1-> mpeg quant
590
     * encoding: set by user.
591
     * decoding: unused
592
     */
593
    int mpeg_quant;
594
    
595
    /**
596
     * pass1 encoding statistics output buffer
597
     * encoding: set by lavc
598
     * decoding: unused
599
     */
600
    char *stats_out; /* encoding statistics output buffer */
601
    
602
    /**
603
     * pass2 encoding statistics input buffer.
604
     * concatenated stuff from stats_out of pass1 should be placed here
605
     * encoding: allocated/set/freed by user
606
     * decoding: unused
607
     */
608
    char *stats_in;
609
    
610
    /**
611
     * ratecontrol qmin qmax limiting method
612
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
613
     * encoding: set by user.
614
     * decoding: unused
615
     */
616
    float rc_qsquish;
617

    
618
    float rc_qmod_amp;
619
    int rc_qmod_freq;
620
    
621
    /**
622
     * ratecontrol override, see RcOverride
623
     * encoding: allocated/set/freed by user.
624
     * decoding: unused
625
     */
626
    RcOverride *rc_override;
627
    int rc_override_count;
628
    
629
    /**
630
     * rate control equation
631
     * encoding: set by user
632
     * decoding: unused
633
     */
634
    char *rc_eq;
635
    
636
    /**
637
     * maximum bitrate
638
     * encoding: set by user.
639
     * decoding: unused
640
     */
641
    int rc_max_rate;
642
    
643
    /**
644
     * minimum bitrate
645
     * encoding: set by user.
646
     * decoding: unused
647
     */
648
    int rc_min_rate;
649
    
650
    /**
651
     * decoder bitstream buffer size
652
     * encoding: set by user.
653
     * decoding: unused
654
     */
655
    int rc_buffer_size;
656
    float rc_buffer_aggressivity;
657

    
658
    /**
659
     * qscale factor between p and i frames
660
     * encoding: set by user.
661
     * decoding: unused
662
     */
663
    float i_quant_factor;
664
    
665
    /**
666
     * qscale offset between p and i frames
667
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
668
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
669
     * encoding: set by user.
670
     * decoding: unused
671
     */
672
    float i_quant_offset;
673
    
674
    /**
675
     * initial complexity for pass1 ratecontrol
676
     * encoding: set by user.
677
     * decoding: unused
678
     */
679
    float rc_initial_cplx;
680

    
681
    /**
682
     * dct algorithm, see FF_DCT_* below
683
     * encoding: set by user
684
     * decoding: unused
685
     */
686
    int dct_algo;
687
#define FF_DCT_AUTO    0
688
#define FF_DCT_FASTINT 1
689
#define FF_DCT_INT     2
690
#define FF_DCT_MMX     3
691
#define FF_DCT_MLIB    4
692
#define FF_DCT_ALTIVEC 5
693
    
694
    /**
695
     * luminance masking (0-> disabled)
696
     * encoding: set by user
697
     * decoding: unused
698
     */
699
    float lumi_masking;
700
    
701
    /**
702
     * temporary complexity masking (0-> disabled)
703
     * encoding: set by user
704
     * decoding: unused
705
     */
706
    float temporal_cplx_masking;
707
    
708
    /**
709
     * spatial complexity masking (0-> disabled)
710
     * encoding: set by user
711
     * decoding: unused
712
     */
713
    float spatial_cplx_masking;
714
    
715
    /**
716
     * p block masking (0-> disabled)
717
     * encoding: set by user
718
     * decoding: unused
719
     */
720
    float p_masking;
721

    
722
    /**
723
     * darkness masking (0-> disabled)
724
     * encoding: set by user
725
     * decoding: unused
726
     */
727
    float dark_masking;
728
    
729
    /**
730
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
731
     * this is used to workaround some encoder bugs
732
     * encoding: unused
733
     * decoding: set by user, will be converted to upper case by lavc during init
734
     */
735
    int fourcc;
736

    
737
    /**
738
     * idct algorithm, see FF_IDCT_* below
739
     * encoding: set by user
740
     * decoding: set by user
741
     */
742
    int idct_algo;
743
#define FF_IDCT_AUTO         0
744
#define FF_IDCT_INT          1
745
#define FF_IDCT_SIMPLE       2
746
#define FF_IDCT_SIMPLEMMX    3
747
#define FF_IDCT_LIBMPEG2MMX  4
748
#define FF_IDCT_PS2          5
749
#define FF_IDCT_MLIB         6
750
#define FF_IDCT_ARM          7
751
#define FF_IDCT_ALTIVEC      8
752

    
753
    /**
754
     * slice count
755
     * encoding: set by lavc
756
     * decoding: set by user (or 0)
757
     */
758
    int slice_count;
759
    /**
760
     * slice offsets in the frame in bytes
761
     * encoding: set/allocated by lavc
762
     * decoding: set/allocated by user (or NULL)
763
     */
764
    int *slice_offset;
765

    
766
    /**
767
     * error concealment flags
768
     * encoding: unused
769
     * decoding: set by user
770
     */
771
    int error_concealment;
772
#define FF_EC_GUESS_MVS   1
773
#define FF_EC_DEBLOCK     2
774

    
775
    /**
776
     * dsp_mask could be used to disable unwanted
777
     * CPU features (i.e. MMX, SSE. ...)
778
     */
779
     unsigned dsp_mask;
780

    
781
    /**
782
     * bits per sample/pixel from the demuxer (needed for huffyuv)
783
     * encoding: set by lavc
784
     * decoding: set by user
785
     */
786
     int bits_per_sample;
787
    
788
    /**
789
     * prediction method (needed for huffyuv)
790
     * encoding: set by user
791
     * decoding: unused
792
     */
793
     int prediction_method;
794
#define FF_PRED_LEFT   0
795
#define FF_PRED_PLANE  1
796
#define FF_PRED_MEDIAN 2
797
    
798
    /**
799
     * aspect ratio. (0 if unknown)
800
     * encoding: set by user.
801
     * decoding: set by lavc.
802
     */
803
    float aspect_ratio;
804

    
805
    /**
806
     * the picture in the bitstream
807
     * encoding: set by lavc
808
     * decoding: set by lavc
809
     */
810
    AVVideoFrame *coded_picture;
811

    
812
    /**
813
     * debug 
814
     * encoding: set by user.
815
     * decoding: set by user.
816
     */
817
    int debug;
818
#define FF_DEBUG_PICT_INFO 1
819
#define FF_DEBUG_RC        2
820
#define FF_DEBUG_BITSTREAM 4
821
#define FF_DEBUG_MB_TYPE   8
822
#define FF_DEBUG_QP        16
823
#define FF_DEBUG_MV        32
824
#define FF_DEBUG_VIS_MV    64
825
    
826
    /**
827
     * error
828
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR
829
     * decoding: unused
830
     */
831
    uint64_t error[4];
832
} AVCodecContext;
833

    
834
typedef struct AVCodec {
835
    const char *name;
836
    int type;
837
    int id;
838
    int priv_data_size;
839
    int (*init)(AVCodecContext *);
840
    int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
841
    int (*close)(AVCodecContext *);
842
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
843
                  UINT8 *buf, int buf_size);
844
    int capabilities;
845
    struct AVCodec *next;
846
} AVCodec;
847

    
848
/** 
849
 * four components are given, that's all.
850
 * the last component is alpha
851
 */
852
typedef struct AVPicture {
853
    UINT8 *data[4];
854
    int linesize[4];
855
} AVPicture;
856

    
857
extern AVCodec ac3_encoder;
858
extern AVCodec mp2_encoder;
859
extern AVCodec mp3lame_encoder;
860
extern AVCodec oggvorbis_encoder;
861
extern AVCodec mpeg1video_encoder;
862
extern AVCodec h263_encoder;
863
extern AVCodec h263p_encoder;
864
extern AVCodec rv10_encoder;
865
extern AVCodec mjpeg_encoder;
866
extern AVCodec mpeg4_encoder;
867
extern AVCodec msmpeg4v1_encoder;
868
extern AVCodec msmpeg4v2_encoder;
869
extern AVCodec msmpeg4v3_encoder;
870
extern AVCodec wmv1_encoder;
871
extern AVCodec wmv2_encoder;
872
extern AVCodec huffyuv_encoder;
873

    
874
extern AVCodec h263_decoder;
875
extern AVCodec mpeg4_decoder;
876
extern AVCodec msmpeg4v1_decoder;
877
extern AVCodec msmpeg4v2_decoder;
878
extern AVCodec msmpeg4v3_decoder;
879
extern AVCodec wmv1_decoder;
880
extern AVCodec wmv2_decoder;
881
extern AVCodec mpeg_decoder;
882
extern AVCodec h263i_decoder;
883
extern AVCodec rv10_decoder;
884
extern AVCodec svq1_decoder;
885
extern AVCodec dvvideo_decoder;
886
extern AVCodec dvaudio_decoder;
887
extern AVCodec wmav1_decoder;
888
extern AVCodec wmav2_decoder;
889
extern AVCodec mjpeg_decoder;
890
extern AVCodec mjpegb_decoder;
891
extern AVCodec mp2_decoder;
892
extern AVCodec mp3_decoder;
893
extern AVCodec mace3_decoder;
894
extern AVCodec mace6_decoder;
895
extern AVCodec huffyuv_decoder;
896
extern AVCodec oggvorbis_decoder;
897

    
898
/* pcm codecs */
899
#define PCM_CODEC(id, name) \
900
extern AVCodec name ## _decoder; \
901
extern AVCodec name ## _encoder
902

    
903
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
904
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
905
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
906
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
907
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
908
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
909
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
910
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
911

    
912
/* adpcm codecs */
913

    
914
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
915
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
916
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
917

    
918
#undef PCM_CODEC
919

    
920
/* dummy raw video codec */
921
extern AVCodec rawvideo_codec;
922

    
923
/* the following codecs use external GPL libs */
924
extern AVCodec ac3_decoder;
925

    
926
/* resample.c */
927

    
928
struct ReSampleContext;
929

    
930
typedef struct ReSampleContext ReSampleContext;
931

    
932
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
933
                                     int output_rate, int input_rate);
934
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
935
void audio_resample_close(ReSampleContext *s);
936

    
937
/* YUV420 format is assumed ! */
938

    
939
struct ImgReSampleContext;
940

    
941
typedef struct ImgReSampleContext ImgReSampleContext;
942

    
943
ImgReSampleContext *img_resample_init(int output_width, int output_height,
944
                                      int input_width, int input_height);
945

    
946
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
947
                                      int iwidth, int iheight,
948
                                      int topBand, int bottomBand,
949
                                      int leftBand, int rightBand);
950

    
951
void img_resample(ImgReSampleContext *s, 
952
                  AVPicture *output, AVPicture *input);
953

    
954
void img_resample_close(ImgReSampleContext *s);
955

    
956
void avpicture_fill(AVPicture *picture, UINT8 *ptr,
957
                    int pix_fmt, int width, int height);
958
int avpicture_get_size(int pix_fmt, int width, int height);
959
void avcodec_get_chroma_sub_sample(int fmt, int *h_shift, int *v_shift);
960

    
961
/* convert among pixel formats */
962
int img_convert(AVPicture *dst, int dst_pix_fmt,
963
                AVPicture *src, int pix_fmt, 
964
                int width, int height);
965

    
966
/* deinterlace a picture */
967
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
968
                          int pix_fmt, int width, int height);
969

    
970
/* external high level API */
971

    
972
extern AVCodec *first_avcodec;
973

    
974
/* returns LIBAVCODEC_VERSION_INT constant */
975
unsigned avcodec_version(void);
976
/* returns LIBAVCODEC_BUILD constant */
977
unsigned avcodec_build(void);
978
void avcodec_init(void);
979

    
980
void avcodec_set_bit_exact(void);
981

    
982
void register_avcodec(AVCodec *format);
983
AVCodec *avcodec_find_encoder(enum CodecID id);
984
AVCodec *avcodec_find_encoder_by_name(const char *name);
985
AVCodec *avcodec_find_decoder(enum CodecID id);
986
AVCodec *avcodec_find_decoder_by_name(const char *name);
987
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
988

    
989
void avcodec_get_context_defaults(AVCodecContext *s);
990
AVCodecContext *avcodec_alloc_context(void);
991
AVVideoFrame *avcodec_alloc_picture(void);
992

    
993
int avcodec_default_get_buffer(AVCodecContext *s, AVVideoFrame *pic);
994
void avcodec_default_release_buffer(AVCodecContext *s, AVVideoFrame *pic);
995

    
996
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
997
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples, 
998
                         int *frame_size_ptr,
999
                         UINT8 *buf, int buf_size);
1000
int avcodec_decode_video(AVCodecContext *avctx, AVVideoFrame *picture, 
1001
                         int *got_picture_ptr,
1002
                         UINT8 *buf, int buf_size);
1003
int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata, 
1004
                        int *data_size_ptr,
1005
                        UINT8 *buf, int buf_size);
1006
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1007
                         const short *samples);
1008
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1009
                         const AVVideoFrame *pict);
1010

    
1011
int avcodec_close(AVCodecContext *avctx);
1012

    
1013
void avcodec_register_all(void);
1014

    
1015
void avcodec_flush_buffers(AVCodecContext *avctx);
1016

    
1017
/**
1018
 * Interface for 0.5.0 version
1019
 *
1020
 * do not even think about it's usage for this moment
1021
 */
1022

    
1023
typedef struct {
1024
    // compressed size used from given memory buffer
1025
    int size;
1026
    /// I/P/B frame type
1027
    int frame_type;
1028
} avc_enc_result_t;
1029

    
1030
/**
1031
 * Commands
1032
 * order can't be changed - once it was defined
1033
 */
1034
typedef enum {
1035
    // general commands
1036
    AVC_OPEN_BY_NAME = 0xACA000,
1037
    AVC_OPEN_BY_CODEC_ID,
1038
    AVC_OPEN_BY_FOURCC,
1039
    AVC_CLOSE,
1040

    
1041
    AVC_FLUSH,
1042
    // pin - struct { uint8_t* src, uint_t src_size }
1043
    // pout - struct { AVPicture* img, consumed_bytes,
1044
    AVC_DECODE,
1045
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1046
    // pout - uint_t used_from_dest_size
1047
    AVC_ENCODE, 
1048

    
1049
    // query/get video commands
1050
    AVC_GET_VERSION = 0xACB000,
1051
    AVC_GET_WIDTH,
1052
    AVC_GET_HEIGHT,
1053
    AVC_GET_DELAY,
1054
    AVC_GET_QUANT_TABLE,
1055
    // ...
1056

    
1057
    // query/get audio commands
1058
    AVC_GET_FRAME_SIZE = 0xABC000,
1059

    
1060
    // maybe define some simple structure which
1061
    // might be passed to the user - but they can't
1062
    // contain any codec specific parts and these
1063
    // calls are usualy necessary only few times
1064

    
1065
    // set video commands
1066
    AVC_SET_WIDTH = 0xACD000,
1067
    AVC_SET_HEIGHT,
1068

    
1069
    // set video encoding commands
1070
    AVC_SET_FRAME_RATE = 0xACD800,
1071
    AVC_SET_QUALITY,
1072
    AVC_SET_HURRY_UP,
1073

    
1074
    // set audio commands
1075
    AVC_SET_SAMPLE_RATE = 0xACE000,
1076
    AVC_SET_CHANNELS,
1077

    
1078
} avc_cmd_t;
1079

    
1080
/**
1081
 * \param handle  allocated private structure by libavcodec
1082
 *                for initialization pass NULL - will be returned pout
1083
 *                user is supposed to know nothing about its structure
1084
 * \param cmd     type of operation to be performed
1085
 * \param pint    input parameter
1086
 * \param pout    output parameter
1087
 *
1088
 * \returns  command status - eventually for query command it might return
1089
 * integer resulting value
1090
 */
1091
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1092

    
1093
/* memory */
1094
void *av_malloc(unsigned int size);
1095
void *av_mallocz(unsigned int size);
1096
void av_free(void *ptr);
1097
void __av_freep(void **ptr);
1098
#define av_freep(p) __av_freep((void **)(p))
1099
/* for static data only */
1100
/* call av_free_static to release all staticaly allocated tables */
1101
void av_free_static();
1102
void *__av_mallocz_static(void** location, unsigned int size);
1103
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
1104

    
1105
#endif /* AVCODEC_H */