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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       4654
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#define LIBAVCODEC_BUILD_STR   "4654"
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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_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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};
79

    
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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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};
84

    
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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 */
112
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 
124
*/
125

    
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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 */
149

    
150
/* codec capabilities */
151

    
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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
155
   used */
156
#define CODEC_CAP_PARSE_ONLY      0x0004
157
#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: \
168
     * decoding: \
169
     */\
170
    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\
175
     */\
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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\
182
     */\
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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\
196
     * decoding: set by lavc\
197
     */\
198
    int coded_picture_number;\
199
    /**\
200
     * encoding: set by\
201
     * decoding: set by lavc\
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     * picture number in display order.\
203
     */\
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    int display_picture_number;\
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\
206
    /**\
207
     * 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\
210
     */\
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    float quality; \
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\
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    /**\
214
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
215
     * set to something large if the buffer has not been used yet \
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     * encoding: unused\
217
     * decoding: MUST be set by get_buffer()\
218
     */\
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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))\
225
     */\
226
    int reference;\
227
\
228
    /**\
229
     * QP table\
230
     * encoding: unused\
231
     * decoding: set by lavc\
232
     */\
233
    int8_t *qscale_table;\
234
    /**\
235
     * QP store stride\
236
     * encoding: unused\
237
     * decoding: set by lavc\
238
     */\
239
    int qstride;\
240
\
241
    /**\
242
     * mbskip_table[mb]>=1 if MB didnt change\
243
     * stride= mb_width = (width+15)>>4\
244
     * encoding: unused\
245
     * decoding: set by lavc\
246
     */\
247
    uint8_t *mbskip_table;\
248
\
249
    /**\
250
     * for some private data of the user\
251
     * encoding: unused\
252
     * decoding: set by user\
253
     */\
254
    void *opaque;\
255
\
256
    /**\
257
     * error\
258
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR\
259
     * decoding: unused\
260
     */\
261
    uint64_t error[4];\
262
\
263
    /**\
264
     * type of the buffer (to keep track of who has to dealloc data[*])\
265
     * encoding: set by the one who allocs it\
266
     * decoding: set by the one who allocs it\
267
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\ 
268
     */\
269
    int type;\
270

    
271
#define FF_BUFFER_TYPE_INTERNAL 1
272
#define FF_BUFFER_TYPE_USER     2 // Direct rendering buffers
273
#define FF_BUFFER_TYPE_SHARED   4 // input frame for encoding(wont be dealloced)
274

    
275

    
276
#define FF_I_TYPE 1 // Intra
277
#define FF_P_TYPE 2 // Predicted
278
#define FF_B_TYPE 3 // Bi-dir predicted
279
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
280

    
281
typedef struct AVFrame {
282
    FF_COMMON_FRAME
283
} AVFrame;
284

    
285
typedef struct AVCodecContext {
286
    /**
287
     * the average bitrate
288
     * encoding: set by user. unused for constant quantizer encoding
289
     * decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
290
     */
291
    int bit_rate;
292

    
293
    /**
294
     * number of bits the bitstream is allowed to diverge from the reference
295
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
296
     * encoding: set by user. unused for constant quantizer encoding
297
     * decoding: unused
298
     */
299
    int bit_rate_tolerance; 
300

    
301
    /**
302
     * CODEC_FLAG_*
303
     * encoding: set by user.
304
     * decoding: set by user.
305
     */
306
    int flags;
307

    
308
    /**
309
     * some codecs needs additionnal format info. It is stored here
310
     * encoding: set by user. 
311
     * decoding: set by lavc. (FIXME is this ok?)
312
     */
313
    int sub_id;
314

    
315
    /**
316
     * motion estimation algorithm used for video coding
317
     * encoding: MUST be set by user.
318
     * decoding: unused
319
     */
320
    int me_method;
321

    
322
    /**
323
     * some codecs need / can use extra-data like huffman tables
324
     * mjpeg: huffman tables
325
     * rv10: additional flags
326
     * mpeg4: global headers (they can be in the bitstream or here)
327
     * encoding: set/allocated/freed by lavc.
328
     * decoding: set/allocated/freed by user.
329
     */
330
    void *extradata;
331
    int extradata_size;
332
    
333
    /* video only */
334
    /**
335
     * frames per sec multiplied by FRAME_RATE_BASE
336
     * for variable fps this is the precission, so if the timestamps 
337
     * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
338
     * encoding: MUST be set by user
339
     * decoding: set by lavc. 0 or the frame_rate if available
340
     */
341
    int frame_rate;
342

    
343
    /**
344
     * encoding: MUST be set by user. 
345
     * decoding: set by user, some codecs might override / change it during playback
346
     */
347
    int width, height;
348
    
349
#define FF_ASPECT_SQUARE 1
350
#define FF_ASPECT_4_3_625 2
351
#define FF_ASPECT_4_3_525 3
352
#define FF_ASPECT_16_9_625 4
353
#define FF_ASPECT_16_9_525 5
354
#define FF_ASPECT_EXTENDED 15
355

    
356
    /**
357
     * the number of pictures in a group of pitures, or 0 for intra_only
358
     * encoding: set by user.
359
     * decoding: unused
360
     */
361
    int gop_size;
362

    
363
    /**
364
     * pixel format, see PIX_FMT_xxx
365
     * encoding: unused
366
     * decoding: set by lavc.
367
     */
368
    enum PixelFormat pix_fmt;
369
    
370
    int repeat_pict; /* when decoding, this signal how much the picture */
371
                     /* must be delayed.                                */
372
                     /* extra_delay = (repeat_pict / 2) * (1/fps)       */
373
    
374
    /**
375
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
376
     * decoder to draw an horizontal band. It improve cache usage. Not
377
     * all codecs can do that. You must check the codec capabilities
378
     * before
379
     * encoding: unused
380
     * decoding: set by user.
381
     */
382
    void (*draw_horiz_band)(struct AVCodecContext *s,
383
                            UINT8 **src_ptr, int linesize,
384
                            int y, int width, int height);
385

    
386
    /* audio only */
387
    int sample_rate; /* samples per sec */
388
    int channels;
389
    int sample_fmt;  /* sample format, currenly unused */
390

    
391
    /* the following data should not be initialized */
392
    int frame_size;     /* in samples, initialized when calling 'init' */
393
    int frame_number;   /* audio or video frame number */
394
    int real_pict_num;  /* returns the real picture number of
395
                           previous encoded frame */
396
    
397
    /**
398
     * number of frames the decoded output will be delayed relative to 
399
     * the encoded input
400
     * encoding: set by lavc.
401
     * decoding: unused
402
     */
403
    int delay;
404
    
405
    /* encoding parameters */
406
    float qcompress;  /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
407
    float qblur;      /* amount of qscale smoothing over time (0.0-1.0) */
408
    
409
    /**
410
     * minimum quantizer
411
     * encoding: set by user.
412
     * decoding: unused
413
     */
414
    int qmin;
415

    
416
    /**
417
     * maximum quantizer
418
     * encoding: set by user.
419
     * decoding: unused
420
     */
421
    int qmax;
422

    
423
    /**
424
     * maximum quantizer difference etween frames
425
     * encoding: set by user.
426
     * decoding: unused
427
     */
428
    int max_qdiff;
429

    
430
    /**
431
     * maximum number of b frames between non b frames
432
     * note: the output will be delayed by max_b_frames+1 relative to the input
433
     * encoding: set by user.
434
     * decoding: unused
435
     */
436
    int max_b_frames;
437

    
438
    /**
439
     * qscale factor between ip and b frames
440
     * encoding: set by user.
441
     * decoding: unused
442
     */
443
    float b_quant_factor;
444
    
445
    /** obsolete FIXME remove */
446
    int rc_strategy;
447
    int b_frame_strategy;
448

    
449
    /**
450
     * encoding: unused
451
     * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
452
     */
453
    int hurry_up;
454
    
455
    struct AVCodec *codec;
456
    
457
    void *priv_data;
458

    
459
    /* The following data is for RTP friendly coding */
460
    /* By now only H.263/H.263+/MPEG4 coder honours this   */
461
    int rtp_mode;   /* 1 for activate RTP friendly-mode           */
462
                    /* highers numbers represent more error-prone */
463
                    /* enviroments, by now just "1" exist         */
464
    
465
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
466
                            /* do it's best to deliver a chunk with size    */
467
                            /* below rtp_payload_size, the chunk will start */
468
                            /* with a start code on some codecs like H.263  */
469
                            /* This doesn't take account of any particular  */
470
                            /* headers inside the transmited RTP payload    */
471

    
472
    
473
    /* The RTP callcack: This function is called  */
474
    /* every time the encoder as a packet to send */
475
    /* Depends on the encoder if the data starts  */
476
    /* with a Start Code (it should) H.263 does   */
477
    void (*rtp_callback)(void *data, int size, int packet_number); 
478

    
479
    /* statistics, used for 2-pass encoding */
480
    int mv_bits;
481
    int header_bits;
482
    int i_tex_bits;
483
    int p_tex_bits;
484
    int i_count;
485
    int p_count;
486
    int skip_count;
487
    int misc_bits;
488
    
489
    /**
490
     * number of bits used for the previously encoded frame
491
     * encoding: set by lavc
492
     * decoding: - for audio - bits_per_sample
493
     */
494
    int frame_bits;
495
                 
496
    /**
497
     * private data of the user, can be used to carry app specific stuff
498
     * encoding: set by user
499
     * decoding: set by user
500
     */
501
    void *opaque;
502

    
503
    char codec_name[32];
504
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
505
    enum CodecID codec_id; /* see CODEC_ID_xxx */
506
    unsigned int codec_tag;  /* codec tag, only used if unknown codec */
507
    
508
    /**
509
     * workaround bugs in encoders which sometimes cannot be detected automatically
510
     * encoding: unused
511
     * decoding: set by user
512
     */
513
    int workaround_bugs;
514
#define FF_BUG_AUTODETECT       1  //autodetection
515
#define FF_BUG_OLD_MSMPEG4      2
516
#define FF_BUG_XVID_ILACE       4
517
#define FF_BUG_UMP4             8
518
#define FF_BUG_NO_PADDING       16
519
#define FF_BUG_AC_VLC           32
520
#define FF_BUG_QPEL_CHROMA      64
521
#define FF_BUG_STD_QPEL         128
522
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
523
        
524
    /**
525
     * encoding: set by user
526
     * decoding: unused
527
     */
528
    int luma_elim_threshold;
529
    
530
    /**
531
     * encoding: set by user
532
     * decoding: unused
533
     */
534
    int chroma_elim_threshold;
535
    
536
    /**
537
     * strictly follow the std (MPEG4, ...)
538
     * encoding: set by user
539
     * decoding: unused
540
     */
541
    int strict_std_compliance;
542
    
543
    /**
544
     * qscale offset between ip and b frames
545
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
546
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
547
     * encoding: set by user.
548
     * decoding: unused
549
     */
550
    float b_quant_offset;
551
    
552
    /**
553
     * error resilience higher values will detect more errors but may missdetect
554
     * some more or less valid parts as errors
555
     * encoding: unused
556
     * decoding: set by user
557
     */
558
    int error_resilience;
559
#define FF_ER_CAREFULL        1
560
#define FF_ER_COMPLIANT       2
561
#define FF_ER_AGGRESSIVE      3
562
#define FF_ER_VERY_AGGRESSIVE 4
563
    
564
    /**
565
     * called at the beginning of each frame to get a buffer for it.
566
     * if pic.reference is set then the frame will be read later by lavc
567
     * encoding: unused
568
     * decoding: set by lavc, user can override
569
     */
570
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
571
    
572
    /**
573
     * called to release buffers which where allocated with get_buffer.
574
     * a released buffer can be reused in get_buffer()
575
     * pic.data[*] must be set to NULL
576
     * encoding: unused
577
     * decoding: set by lavc, user can override
578
     */
579
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
580

    
581
    /**
582
     * is 1 if the decoded stream contains b frames, 0 otherwise
583
     * encoding: unused
584
     * decoding: set by lavc
585
     */
586
    int has_b_frames;
587
    
588
    int block_align; /* used by some WAV based audio codecs */
589
    
590
    int parse_only; /* decoding only: if true, only parsing is done
591
                       (function avcodec_parse_frame()). The frame
592
                       data is returned. Only MPEG codecs support this now. */
593
    
594
    /**
595
     * 0-> h263 quant 1-> mpeg quant
596
     * encoding: set by user.
597
     * decoding: unused
598
     */
599
    int mpeg_quant;
600
    
601
    /**
602
     * pass1 encoding statistics output buffer
603
     * encoding: set by lavc
604
     * decoding: unused
605
     */
606
    char *stats_out; /* encoding statistics output buffer */
607
    
608
    /**
609
     * pass2 encoding statistics input buffer.
610
     * concatenated stuff from stats_out of pass1 should be placed here
611
     * encoding: allocated/set/freed by user
612
     * decoding: unused
613
     */
614
    char *stats_in;
615
    
616
    /**
617
     * ratecontrol qmin qmax limiting method
618
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
619
     * encoding: set by user.
620
     * decoding: unused
621
     */
622
    float rc_qsquish;
623

    
624
    float rc_qmod_amp;
625
    int rc_qmod_freq;
626
    
627
    /**
628
     * ratecontrol override, see RcOverride
629
     * encoding: allocated/set/freed by user.
630
     * decoding: unused
631
     */
632
    RcOverride *rc_override;
633
    int rc_override_count;
634
    
635
    /**
636
     * rate control equation
637
     * encoding: set by user
638
     * decoding: unused
639
     */
640
    char *rc_eq;
641
    
642
    /**
643
     * maximum bitrate
644
     * encoding: set by user.
645
     * decoding: unused
646
     */
647
    int rc_max_rate;
648
    
649
    /**
650
     * minimum bitrate
651
     * encoding: set by user.
652
     * decoding: unused
653
     */
654
    int rc_min_rate;
655
    
656
    /**
657
     * decoder bitstream buffer size
658
     * encoding: set by user.
659
     * decoding: unused
660
     */
661
    int rc_buffer_size;
662
    float rc_buffer_aggressivity;
663

    
664
    /**
665
     * qscale factor between p and i frames
666
     * encoding: set by user.
667
     * decoding: unused
668
     */
669
    float i_quant_factor;
670
    
671
    /**
672
     * qscale offset between p and i frames
673
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
674
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
675
     * encoding: set by user.
676
     * decoding: unused
677
     */
678
    float i_quant_offset;
679
    
680
    /**
681
     * initial complexity for pass1 ratecontrol
682
     * encoding: set by user.
683
     * decoding: unused
684
     */
685
    float rc_initial_cplx;
686

    
687
    /**
688
     * dct algorithm, see FF_DCT_* below
689
     * encoding: set by user
690
     * decoding: unused
691
     */
692
    int dct_algo;
693
#define FF_DCT_AUTO    0
694
#define FF_DCT_FASTINT 1
695
#define FF_DCT_INT     2
696
#define FF_DCT_MMX     3
697
#define FF_DCT_MLIB    4
698
#define FF_DCT_ALTIVEC 5
699
    
700
    /**
701
     * luminance masking (0-> disabled)
702
     * encoding: set by user
703
     * decoding: unused
704
     */
705
    float lumi_masking;
706
    
707
    /**
708
     * temporary complexity masking (0-> disabled)
709
     * encoding: set by user
710
     * decoding: unused
711
     */
712
    float temporal_cplx_masking;
713
    
714
    /**
715
     * spatial complexity masking (0-> disabled)
716
     * encoding: set by user
717
     * decoding: unused
718
     */
719
    float spatial_cplx_masking;
720
    
721
    /**
722
     * p block masking (0-> disabled)
723
     * encoding: set by user
724
     * decoding: unused
725
     */
726
    float p_masking;
727

    
728
    /**
729
     * darkness masking (0-> disabled)
730
     * encoding: set by user
731
     * decoding: unused
732
     */
733
    float dark_masking;
734
    
735
    /**
736
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
737
     * this is used to workaround some encoder bugs
738
     * encoding: unused
739
     * decoding: set by user, will be converted to upper case by lavc during init
740
     */
741
    int fourcc;
742

    
743
    /**
744
     * idct algorithm, see FF_IDCT_* below
745
     * encoding: set by user
746
     * decoding: set by user
747
     */
748
    int idct_algo;
749
#define FF_IDCT_AUTO         0
750
#define FF_IDCT_INT          1
751
#define FF_IDCT_SIMPLE       2
752
#define FF_IDCT_SIMPLEMMX    3
753
#define FF_IDCT_LIBMPEG2MMX  4
754
#define FF_IDCT_PS2          5
755
#define FF_IDCT_MLIB         6
756
#define FF_IDCT_ARM          7
757
#define FF_IDCT_ALTIVEC      8
758

    
759
    /**
760
     * slice count
761
     * encoding: set by lavc
762
     * decoding: set by user (or 0)
763
     */
764
    int slice_count;
765
    /**
766
     * slice offsets in the frame in bytes
767
     * encoding: set/allocated by lavc
768
     * decoding: set/allocated by user (or NULL)
769
     */
770
    int *slice_offset;
771

    
772
    /**
773
     * error concealment flags
774
     * encoding: unused
775
     * decoding: set by user
776
     */
777
    int error_concealment;
778
#define FF_EC_GUESS_MVS   1
779
#define FF_EC_DEBLOCK     2
780

    
781
    /**
782
     * dsp_mask could be used to disable unwanted
783
     * CPU features (i.e. MMX, SSE. ...)
784
     */
785
     unsigned dsp_mask;
786

    
787
    /**
788
     * bits per sample/pixel from the demuxer (needed for huffyuv)
789
     * encoding: set by lavc
790
     * decoding: set by user
791
     */
792
     int bits_per_sample;
793
    
794
    /**
795
     * prediction method (needed for huffyuv)
796
     * encoding: set by user
797
     * decoding: unused
798
     */
799
     int prediction_method;
800
#define FF_PRED_LEFT   0
801
#define FF_PRED_PLANE  1
802
#define FF_PRED_MEDIAN 2
803
    
804
    /**
805
     * aspect ratio. (0 if unknown)
806
     * encoding: set by user.
807
     * decoding: set by lavc.
808
     */
809
    float aspect_ratio;
810

    
811
    /**
812
     * the picture in the bitstream
813
     * encoding: set by lavc
814
     * decoding: set by lavc
815
     */
816
    AVFrame *coded_frame;
817

    
818
    /**
819
     * debug 
820
     * encoding: set by user.
821
     * decoding: set by user.
822
     */
823
    int debug;
824
#define FF_DEBUG_PICT_INFO 1
825
#define FF_DEBUG_RC        2
826
#define FF_DEBUG_BITSTREAM 4
827
#define FF_DEBUG_MB_TYPE   8
828
#define FF_DEBUG_QP        16
829
#define FF_DEBUG_MV        32
830
#define FF_DEBUG_VIS_MV    0x00000040
831
#define FF_DEBUG_SKIP      0x00000080
832
#define FF_DEBUG_STARTCODE 0x00000100
833
#define FF_DEBUG_PTS       0x00000200
834
    
835
    /**
836
     * error
837
     * encoding: set by lavc if flags&CODEC_FLAG_PSNR
838
     * decoding: unused
839
     */
840
    uint64_t error[4];
841
    
842
    /**
843
     * minimum MB quantizer
844
     * encoding: set by user.
845
     * decoding: unused
846
     */
847
    int mb_qmin;
848

    
849
    /**
850
     * maximum MB quantizer
851
     * encoding: set by user.
852
     * decoding: unused
853
     */
854
    int mb_qmax;
855
    
856
    /**
857
     * motion estimation compare function
858
     * encoding: set by user.
859
     * decoding: unused
860
     */
861
    int me_cmp;
862
    /**
863
     * subpixel motion estimation compare function
864
     * encoding: set by user.
865
     * decoding: unused
866
     */
867
    int me_sub_cmp;
868
    /**
869
     * macroblock compare function (not supported yet)
870
     * encoding: set by user.
871
     * decoding: unused
872
     */
873
    int mb_cmp;
874
#define FF_CMP_SAD  0
875
#define FF_CMP_SSE  1
876
#define FF_CMP_SATD 2
877
#define FF_CMP_DCT  3
878
#define FF_CMP_PSNR 4
879
#define FF_CMP_BIT  5
880
#define FF_CMP_RD   6
881
#define FF_CMP_ZERO 7
882
#define FF_CMP_CHROMA 256
883
    
884
    /**
885
     * ME diamond size & shape
886
     * encoding: set by user.
887
     * decoding: unused
888
     */
889
    int dia_size;
890

    
891
    /**
892
     * amount of previous MV predictors (2a+1 x 2a+1 square)
893
     * encoding: set by user.
894
     * decoding: unused
895
     */
896
    int last_predictor_count;
897

    
898
    /**
899
     * pre pass for motion estimation
900
     * encoding: set by user.
901
     * decoding: unused
902
     */
903
    int pre_me;
904

    
905
    /**
906
     * motion estimation pre pass compare function
907
     * encoding: set by user.
908
     * decoding: unused
909
     */
910
    int me_pre_cmp;
911

    
912
    /**
913
     * ME pre pass diamond size & shape
914
     * encoding: set by user.
915
     * decoding: unused
916
     */
917
    int pre_dia_size;
918

    
919
    /**
920
     * subpel ME quality
921
     * encoding: set by user.
922
     * decoding: unused
923
     */
924
    int me_subpel_quality;
925

    
926
    /**
927
     * callback to negotiate the pixelFormat
928
     * @param fmt is the list of formats which are supported by the codec,
929
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
930
     * the first is allways the native one
931
     * @return the choosen format
932
     * encoding: unused
933
     * decoding: set by user, if not set then the native format will always be choosen
934
     */
935
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
936
} AVCodecContext;
937

    
938
typedef struct AVCodec {
939
    const char *name;
940
    int type;
941
    int id;
942
    int priv_data_size;
943
    int (*init)(AVCodecContext *);
944
    int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
945
    int (*close)(AVCodecContext *);
946
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
947
                  UINT8 *buf, int buf_size);
948
    int capabilities;
949
    struct AVCodec *next;
950
} AVCodec;
951

    
952
/** 
953
 * four components are given, that's all.
954
 * the last component is alpha
955
 */
956
typedef struct AVPicture {
957
    UINT8 *data[4];
958
    int linesize[4];
959
} AVPicture;
960

    
961
extern AVCodec ac3_encoder;
962
extern AVCodec mp2_encoder;
963
extern AVCodec mp3lame_encoder;
964
extern AVCodec oggvorbis_encoder;
965
extern AVCodec mpeg1video_encoder;
966
extern AVCodec h263_encoder;
967
extern AVCodec h263p_encoder;
968
extern AVCodec rv10_encoder;
969
extern AVCodec mjpeg_encoder;
970
extern AVCodec mpeg4_encoder;
971
extern AVCodec msmpeg4v1_encoder;
972
extern AVCodec msmpeg4v2_encoder;
973
extern AVCodec msmpeg4v3_encoder;
974
extern AVCodec wmv1_encoder;
975
extern AVCodec wmv2_encoder;
976
extern AVCodec huffyuv_encoder;
977

    
978
extern AVCodec h263_decoder;
979
extern AVCodec mpeg4_decoder;
980
extern AVCodec msmpeg4v1_decoder;
981
extern AVCodec msmpeg4v2_decoder;
982
extern AVCodec msmpeg4v3_decoder;
983
extern AVCodec wmv1_decoder;
984
extern AVCodec wmv2_decoder;
985
extern AVCodec mpeg_decoder;
986
extern AVCodec h263i_decoder;
987
extern AVCodec rv10_decoder;
988
extern AVCodec svq1_decoder;
989
extern AVCodec dvvideo_decoder;
990
extern AVCodec dvaudio_decoder;
991
extern AVCodec wmav1_decoder;
992
extern AVCodec wmav2_decoder;
993
extern AVCodec mjpeg_decoder;
994
extern AVCodec mjpegb_decoder;
995
extern AVCodec mp2_decoder;
996
extern AVCodec mp3_decoder;
997
extern AVCodec mace3_decoder;
998
extern AVCodec mace6_decoder;
999
extern AVCodec huffyuv_decoder;
1000
extern AVCodec oggvorbis_decoder;
1001

    
1002
/* pcm codecs */
1003
#define PCM_CODEC(id, name) \
1004
extern AVCodec name ## _decoder; \
1005
extern AVCodec name ## _encoder
1006

    
1007
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1008
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1009
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1010
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1011
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1012
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1013
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1014
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1015

    
1016
/* adpcm codecs */
1017

    
1018
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1019
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1020
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1021

    
1022
#undef PCM_CODEC
1023

    
1024
/* dummy raw video codec */
1025
extern AVCodec rawvideo_codec;
1026

    
1027
/* the following codecs use external GPL libs */
1028
extern AVCodec ac3_decoder;
1029

    
1030
/* resample.c */
1031

    
1032
struct ReSampleContext;
1033

    
1034
typedef struct ReSampleContext ReSampleContext;
1035

    
1036
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1037
                                     int output_rate, int input_rate);
1038
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1039
void audio_resample_close(ReSampleContext *s);
1040

    
1041
/* YUV420 format is assumed ! */
1042

    
1043
struct ImgReSampleContext;
1044

    
1045
typedef struct ImgReSampleContext ImgReSampleContext;
1046

    
1047
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1048
                                      int input_width, int input_height);
1049

    
1050
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1051
                                      int iwidth, int iheight,
1052
                                      int topBand, int bottomBand,
1053
                                      int leftBand, int rightBand);
1054

    
1055
void img_resample(ImgReSampleContext *s, 
1056
                  AVPicture *output, AVPicture *input);
1057

    
1058
void img_resample_close(ImgReSampleContext *s);
1059

    
1060
int avpicture_fill(AVPicture *picture, UINT8 *ptr,
1061
                   int pix_fmt, int width, int height);
1062
int avpicture_get_size(int pix_fmt, int width, int height);
1063
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1064
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1065

    
1066
/* convert among pixel formats */
1067
int img_convert(AVPicture *dst, int dst_pix_fmt,
1068
                AVPicture *src, int pix_fmt, 
1069
                int width, int height);
1070

    
1071
/* deinterlace a picture */
1072
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
1073
                          int pix_fmt, int width, int height);
1074

    
1075
/* external high level API */
1076

    
1077
extern AVCodec *first_avcodec;
1078

    
1079
/* returns LIBAVCODEC_VERSION_INT constant */
1080
unsigned avcodec_version(void);
1081
/* returns LIBAVCODEC_BUILD constant */
1082
unsigned avcodec_build(void);
1083
void avcodec_init(void);
1084

    
1085
void avcodec_set_bit_exact(void);
1086

    
1087
void register_avcodec(AVCodec *format);
1088
AVCodec *avcodec_find_encoder(enum CodecID id);
1089
AVCodec *avcodec_find_encoder_by_name(const char *name);
1090
AVCodec *avcodec_find_decoder(enum CodecID id);
1091
AVCodec *avcodec_find_decoder_by_name(const char *name);
1092
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1093

    
1094
void avcodec_get_context_defaults(AVCodecContext *s);
1095
AVCodecContext *avcodec_alloc_context(void);
1096
AVFrame *avcodec_alloc_frame(void);
1097

    
1098
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1099
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1100

    
1101
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1102
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples, 
1103
                         int *frame_size_ptr,
1104
                         UINT8 *buf, int buf_size);
1105
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1106
                         int *got_picture_ptr,
1107
                         UINT8 *buf, int buf_size);
1108
int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata, 
1109
                        int *data_size_ptr,
1110
                        UINT8 *buf, int buf_size);
1111
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1112
                         const short *samples);
1113
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
1114
                         const AVFrame *pict);
1115

    
1116
int avcodec_close(AVCodecContext *avctx);
1117

    
1118
void avcodec_register_all(void);
1119

    
1120
void avcodec_flush_buffers(AVCodecContext *avctx);
1121

    
1122
typedef struct {
1123
    /** options' name with default value*/
1124
    const char* name;
1125
    /** English text help */
1126
    const char* help;
1127
    /** type of variable */
1128
    int type;
1129
#define FF_CONF_TYPE_BOOL 1     // boolean - true,1,on  (or simply presence)
1130
#define FF_CONF_TYPE_DOUBLE 2   // double
1131
#define FF_CONF_TYPE_INT 3      // integer
1132
#define FF_CONF_TYPE_STRING 4   // string (finished with \0)
1133
#define FF_CONF_TYPE_MASK 0x1f        // mask for types - upper bits are various flags
1134
#define FF_CONF_TYPE_EXPERT 0x20 // flag for expert option
1135
#define FF_CONF_TYPE_FLAG (FF_CONF_TYPE_BOOL | 0x40)
1136
#define FF_CONF_TYPE_RCOVERIDE (FF_CONF_TYPE_STRING | 0x80)
1137
    /** where the parsed value should be stored */
1138
    void* val;
1139
    /** min value  (min == max   ->  no limits) */
1140
    double min;
1141
    /** maximum value for double/int */
1142
    double max;
1143
    /** default boo [0,1]l/double/int value */
1144
    double defval;
1145
    /**
1146
     * default string value (with optional semicolon delimited extra option-list
1147
     * i.e.   option1;option2;option3
1148
     * defval might select other then first argument as default
1149
     */
1150
    const char* defstr;
1151
    /** char* list of supported codecs (i.e. ",msmpeg4,h263," NULL - everything */
1152
    const char* supported;
1153
} avc_config_t;
1154

    
1155
void avcodec_getopt(AVCodecContext* avctx, char* str, avc_config_t** config);
1156

    
1157
/**
1158
 * Interface for 0.5.0 version
1159
 *
1160
 * do not even think about it's usage for this moment
1161
 */
1162

    
1163
typedef struct {
1164
    // compressed size used from given memory buffer
1165
    int size;
1166
    /// I/P/B frame type
1167
    int frame_type;
1168
} avc_enc_result_t;
1169

    
1170
/**
1171
 * Commands
1172
 * order can't be changed - once it was defined
1173
 */
1174
typedef enum {
1175
    // general commands
1176
    AVC_OPEN_BY_NAME = 0xACA000,
1177
    AVC_OPEN_BY_CODEC_ID,
1178
    AVC_OPEN_BY_FOURCC,
1179
    AVC_CLOSE,
1180

    
1181
    AVC_FLUSH,
1182
    // pin - struct { uint8_t* src, uint_t src_size }
1183
    // pout - struct { AVPicture* img, consumed_bytes,
1184
    AVC_DECODE,
1185
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1186
    // pout - uint_t used_from_dest_size
1187
    AVC_ENCODE, 
1188

    
1189
    // query/get video commands
1190
    AVC_GET_VERSION = 0xACB000,
1191
    AVC_GET_WIDTH,
1192
    AVC_GET_HEIGHT,
1193
    AVC_GET_DELAY,
1194
    AVC_GET_QUANT_TABLE,
1195
    // ...
1196

    
1197
    // query/get audio commands
1198
    AVC_GET_FRAME_SIZE = 0xABC000,
1199

    
1200
    // maybe define some simple structure which
1201
    // might be passed to the user - but they can't
1202
    // contain any codec specific parts and these
1203
    // calls are usualy necessary only few times
1204

    
1205
    // set video commands
1206
    AVC_SET_WIDTH = 0xACD000,
1207
    AVC_SET_HEIGHT,
1208

    
1209
    // set video encoding commands
1210
    AVC_SET_FRAME_RATE = 0xACD800,
1211
    AVC_SET_QUALITY,
1212
    AVC_SET_HURRY_UP,
1213

    
1214
    // set audio commands
1215
    AVC_SET_SAMPLE_RATE = 0xACE000,
1216
    AVC_SET_CHANNELS,
1217

    
1218
} avc_cmd_t;
1219

    
1220
/**
1221
 * \param handle  allocated private structure by libavcodec
1222
 *                for initialization pass NULL - will be returned pout
1223
 *                user is supposed to know nothing about its structure
1224
 * \param cmd     type of operation to be performed
1225
 * \param pint    input parameter
1226
 * \param pout    output parameter
1227
 *
1228
 * \returns  command status - eventually for query command it might return
1229
 * integer resulting value
1230
 */
1231
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1232

    
1233
/* memory */
1234
void *av_malloc(unsigned int size);
1235
void *av_mallocz(unsigned int size);
1236
void av_free(void *ptr);
1237
void __av_freep(void **ptr);
1238
#define av_freep(p) __av_freep((void **)(p))
1239
/* for static data only */
1240
/* call av_free_static to release all staticaly allocated tables */
1241
void av_free_static(void);
1242
void *__av_mallocz_static(void** location, unsigned int size);
1243
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
1244

    
1245
#endif /* AVCODEC_H */