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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       4634
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#define LIBAVCODEC_BUILD_STR   "4634"
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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_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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    /* 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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#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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};
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enum PixelFormat {
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    PIX_FMT_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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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         /* signed 16 bits */
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/* 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 
113
*/
114

    
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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_TYPE   0x0040  /* fixed I/P frame type, from avctx->key_frame */
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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_DR1    0x8000  /* direct renderig type 1 (store internal frames in external buffers) */
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#define CODEC_FLAG_NOT_TRUNCATED  0x00010000 /* input bitstream is not truncated, except before a startcode 
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                                                allows the last part of a frame to be decoded earlier */
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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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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
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#define CODEC_CAP_DR1             0x0002 /* direct rendering method 1 */
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
142
   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define FRAME_RATE_BASE 10000
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typedef struct AVCodecContext {
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    /**
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     * the average bitrate
150
     * encoding: set by user. unused for constant quantizer encoding
151
     * decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
152
     */
153
    int bit_rate;
154

    
155
    /**
156
     * number of bits the bitstream is allowed to diverge from the reference
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     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
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     * encoding: set by user. unused for constant quantizer encoding
159
     * decoding: unused
160
     */
161
    int bit_rate_tolerance; 
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    /**
164
     * CODEC_FLAG_*
165
     * encoding: set by user.
166
     * decoding: set by user.
167
     */
168
    int flags;
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170
    /**
171
     * some codecs needs additionnal format info. It is stored here
172
     * encoding: set by user. 
173
     * decoding: set by lavc. (FIXME is this ok?)
174
     */
175
    int sub_id;
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    /**
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     * motion estimation algorithm used for video coding
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     * encoding: set by user.
180
     * decoding: unused
181
     */
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    int me_method;
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184
    /**
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     * some codecs need / can use extra-data like huffman tables
186
     * mjpeg: huffman tables
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     * rv10: additional flags
188
     * mpeg4: global headers (they can be in the bitstream or here)
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     * encoding: set/allocated/freed by lavc.
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     * decoding: set/allocated/freed by user.
191
     */
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    void *extradata;
193
    int extradata_size;
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195
    /* video only */
196
    /**
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     * frames per sec multiplied by FRAME_RATE_BASE
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     * for variable fps this is the precission, so if the timestamps 
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     * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
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     * encoding: set by user
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     * decoding: set by lavc. 0 or the frame_rate if available
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     */
203
    int frame_rate;
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    /**
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     * encoding: set by user.
207
     * decoding: set by user, some codecs might override / change it during playback
208
     */
209
    int width, height;
210
    
211
    /**
212
     * encoding: set by user. 0 if not known
213
     * decoding: set by lavc. 0 if not known
214
     */
215
    int aspect_ratio_info;
216
#define FF_ASPECT_SQUARE 1
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#define FF_ASPECT_4_3_625 2
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#define FF_ASPECT_4_3_525 3
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#define FF_ASPECT_16_9_625 4
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#define FF_ASPECT_16_9_525 5
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#define FF_ASPECT_EXTENDED 15
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    /**
224
     * the number of pictures in a group of pitures, or 0 for intra_only
225
     * encoding: set by user.
226
     * decoding: unused
227
     */
228
    int gop_size;
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230
    /**
231
     * pixel format, see PIX_FMT_xxx
232
     * encoding: unused
233
     * decoding: set by lavc.
234
     */
235
    enum PixelFormat pix_fmt;
236
    
237
    int repeat_pict; /* when decoding, this signal how much the picture */
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                     /* must be delayed.                                */
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                     /* extra_delay = (repeat_pict / 2) * (1/fps)       */
240
    
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    /**
242
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
243
     * decoder to draw an horizontal band. It improve cache usage. Not
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     * all codecs can do that. You must check the codec capabilities
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     * before
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     * encoding: unused
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     * decoding: set by user.
248
     */
249
    void (*draw_horiz_band)(struct AVCodecContext *s,
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                            UINT8 **src_ptr, int linesize,
251
                            int y, int width, int height);
252

    
253
    /* audio only */
254
    int sample_rate; /* samples per sec */
255
    int channels;
256
    int sample_fmt;  /* sample format, currenly unused */
257

    
258
    /* the following data should not be initialized */
259
    int frame_size;     /* in samples, initialized when calling 'init' */
260
    int frame_number;   /* audio or video frame number */
261
    int real_pict_num;  /* returns the real picture number of
262
                           previous encoded frame */
263
                           
264
    /**
265
     * 1 -> keyframe, 0-> not
266
     * encoding: set by lavc (for the outputed bitstream, not the input frame)
267
     * decoding: set by lavc (for the decoded  bitstream, not the displayed frame)
268
     */
269
    int key_frame;
270

    
271
    /**
272
     * picture type of the previous en/decoded frame, see ?_TYPE below
273
     * encoding: set by lavc (for the outputed bitstream, not the input frame)
274
     * decoding: set by lavc (for the decoded  bitstream, not the displayed frame)
275
     */
276
    int pict_type;
277
/* FIXME: these should have FF_ */
278
#define I_TYPE 1 // Intra
279
#define P_TYPE 2 // Predicted
280
#define B_TYPE 3 // Bi-dir predicted
281
#define S_TYPE 4 // S(GMC)-VOP MPEG4
282

    
283
    /**
284
     * number of frames the decoded output will be delayed relative to 
285
     * the encoded input
286
     * encoding: set by lavc.
287
     * decoding: unused
288
     */
289
    int delay;
290

    
291
    /**
292
     * mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames 
293
     * stride= mb_width = (width+15)>>4 (FIXME export stride?)
294
     * encoding: unused
295
     * decoding: set by lavc
296
     */
297
    uint8_t *mbskip_table;
298
    
299
    /* encoding parameters */
300
    /**
301
     * quality (between 1 (good) and 31 (bad)) 
302
     * encoding: set by user if CODEC_FLAG_QSCALE is set otherwise set by lavc
303
     * decoding: set by lavc
304
     */
305
    int quality;      /* quality of the previous encoded frame 
306
                         
307
                         this is allso used to set the quality in vbr mode
308
                         and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
309
    float qcompress;  /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
310
    float qblur;      /* amount of qscale smoothing over time (0.0-1.0) */
311
    
312
    /**
313
     * minimum quantizer
314
     * encoding: set by user.
315
     * decoding: unused
316
     */
317
    int qmin;
318

    
319
    /**
320
     * maximum quantizer
321
     * encoding: set by user.
322
     * decoding: unused
323
     */
324
    int qmax;
325

    
326
    /**
327
     * maximum quantizer difference etween frames
328
     * encoding: set by user.
329
     * decoding: unused
330
     */
331
    int max_qdiff;
332

    
333
    /**
334
     * maximum number of b frames between non b frames
335
     * note: the output will be delayed by max_b_frames+1 relative to the input
336
     * encoding: set by user.
337
     * decoding: unused
338
     */
339
    int max_b_frames;
340

    
341
    /**
342
     * qscale factor between ip and b frames
343
     * encoding: set by user.
344
     * decoding: unused
345
     */
346
    float b_quant_factor;
347
    
348
    /** obsolete FIXME remove */
349
    int rc_strategy;
350
    int b_frame_strategy;
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352
    /**
353
     * encoding: unused
354
     * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too
355
     */
356
    int hurry_up;
357
    
358
    struct AVCodec *codec;
359
    
360
    void *priv_data;
361

    
362
    /* The following data is for RTP friendly coding */
363
    /* By now only H.263/H.263+/MPEG4 coder honours this   */
364
    int rtp_mode;   /* 1 for activate RTP friendly-mode           */
365
                    /* highers numbers represent more error-prone */
366
                    /* enviroments, by now just "1" exist         */
367
    
368
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
369
                            /* do it's best to deliver a chunk with size    */
370
                            /* below rtp_payload_size, the chunk will start */
371
                            /* with a start code on some codecs like H.263  */
372
                            /* This doesn't take account of any particular  */
373
                            /* headers inside the transmited RTP payload    */
374

    
375
    
376
    /* The RTP callcack: This function is called  */
377
    /* every time the encoder as a packet to send */
378
    /* Depends on the encoder if the data starts  */
379
    /* with a Start Code (it should) H.263 does   */
380
    void (*rtp_callback)(void *data, int size, int packet_number); 
381

    
382
    /**
383
     * if you set get_psnr to 1 then after encoding you will have the 
384
     * PSNR on psnr_y/cb/cr
385
     * encoding: set by user (1-> on, 0-> off)
386
     * decoding: unused
387
     */
388
    int get_psnr;
389
    float psnr_y;
390
    float psnr_cb;
391
    float psnr_cr;
392
    
393
    /* statistics, used for 2-pass encoding */
394
    int mv_bits;
395
    int header_bits;
396
    int i_tex_bits;
397
    int p_tex_bits;
398
    int i_count;
399
    int p_count;
400
    int skip_count;
401
    int misc_bits;
402
    
403
    /**
404
     * number of bits used for the previously encoded frame
405
     * encoding: set by lavc
406
     * decoding: unused
407
     */
408
    int frame_bits;
409
                 
410
    /**
411
     * private data of the user, can be used to carry app specific stuff
412
     * encoding: set by user
413
     * decoding: set by user
414
     */
415
    void *opaque;
416

    
417
    char codec_name[32];
418
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
419
    enum CodecID codec_id; /* see CODEC_ID_xxx */
420
    unsigned int codec_tag;  /* codec tag, only used if unknown codec */
421
    
422
    /**
423
     * workaround bugs in encoders which sometimes cannot be detected automatically
424
     * encoding: unused
425
     * decoding: set by user
426
     */
427
    int workaround_bugs;
428
#define FF_BUG_AUTODETECT       1  //autodetection
429
#define FF_BUG_OLD_MSMPEG4      2
430
#define FF_BUG_XVID_ILACE       4
431
#define FF_BUG_UMP4             8
432
#define FF_BUG_NO_PADDING       16
433
#define FF_BUG_AC_VLC           32
434
#define FF_BUG_QPEL_CHROMA      64
435
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
436
        
437
    /**
438
     * encoding: set by user
439
     * decoding: unused
440
     */
441
    int luma_elim_threshold;
442
    
443
    /**
444
     * encoding: set by user
445
     * decoding: unused
446
     */
447
    int chroma_elim_threshold;
448
    
449
    /**
450
     * strictly follow the std (MPEG4, ...)
451
     * encoding: set by user
452
     * decoding: unused
453
     */
454
    int strict_std_compliance;
455
    
456
    /**
457
     * qscale offset between ip and b frames
458
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
459
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
460
     * encoding: set by user.
461
     * decoding: unused
462
     */
463
    float b_quant_offset;
464
    
465
    /**
466
     * error resilience {-1,0,1} higher values will detect more errors but may missdetect
467
     * some more or less valid parts as errors
468
     * encoding: unused
469
     * decoding: set by user
470
     */
471
    int error_resilience;
472
    
473
    /**
474
     * obsolete, just here to keep ABI compatible (should be removed perhaps, dunno)
475
     */
476
    int *quant_store;
477

    
478
    /**
479
     * QP store stride
480
     * encoding: unused
481
     * decoding: set by lavc
482
     */
483
    int qstride;
484
    
485
    /**
486
     * buffer, where the next picture should be decoded into
487
     * encoding: unused
488
     * decoding: set by user in get_buffer_callback to a buffer into which the next part
489
     *           of the bitstream will be decoded, and set by lavc at end of frame to the
490
     *           next frame which needs to be displayed
491
     */
492
    uint8_t *dr_buffer[3];
493
    
494
    /**
495
     * stride of the luminance part of the dr buffer
496
     * encoding: unused
497
     * decoding: set by user
498
     */
499
    int dr_stride;
500
    
501
    /**
502
     * same behavior as dr_buffer, just for some private data of the user
503
     * encoding: unused
504
     * decoding: set by user in get_buffer_callback, and set by lavc at end of frame
505
     */
506
    void *dr_opaque_frame;
507
    
508
    /**
509
     * called at the beginning of each frame to get a buffer for it
510
     * encoding: unused
511
     * decoding: set by user
512
     */
513
    int (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
514

    
515
    /**
516
     * is 1 if the decoded stream contains b frames, 0 otherwise
517
     * encoding: unused
518
     * decoding: set by lavc
519
     */
520
    int has_b_frames;
521

    
522
    /**
523
     * stride of the chrominance part of the dr buffer
524
     * encoding: unused
525
     * decoding: set by user
526
     */
527
    int dr_uvstride;
528
    
529
    /**
530
     * number of dr buffers
531
     * encoding: unused
532
     * decoding: set by user
533
     */
534
    int dr_ip_buffer_count;
535
    
536
    int block_align; /* used by some WAV based audio codecs */
537
    
538
    int parse_only; /* decoding only: if true, only parsing is done
539
                       (function avcodec_parse_frame()). The frame
540
                       data is returned. Only MPEG codecs support this now. */
541
    
542
    /**
543
     * 0-> h263 quant 1-> mpeg quant
544
     * encoding: set by user.
545
     * decoding: unused
546
     */
547
    int mpeg_quant;
548
    
549
    /**
550
     * pass1 encoding statistics output buffer
551
     * encoding: set by lavc
552
     * decoding: unused
553
     */
554
    char *stats_out; /* encoding statistics output buffer */
555
    
556
    /**
557
     * pass2 encoding statistics input buffer.
558
     * concatenated stuff from stats_out of pass1 should be placed here
559
     * encoding: allocated/set/freed by user
560
     * decoding: unused
561
     */
562
    char *stats_in;
563
    
564
    /**
565
     * ratecontrol qmin qmax limiting method
566
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
567
     * encoding: set by user.
568
     * decoding: unused
569
     */
570
    float rc_qsquish;
571

    
572
    float rc_qmod_amp;
573
    int rc_qmod_freq;
574
    
575
    /**
576
     * ratecontrol override, see RcOverride
577
     * encoding: allocated/set/freed by user.
578
     * decoding: unused
579
     */
580
    RcOverride *rc_override;
581
    int rc_override_count;
582
    
583
    /**
584
     * rate control equation
585
     * encoding: set by user
586
     * decoding: unused
587
     */
588
    char *rc_eq;
589
    
590
    /**
591
     * maximum bitrate
592
     * encoding: set by user.
593
     * decoding: unused
594
     */
595
    int rc_max_rate;
596
    
597
    /**
598
     * minimum bitrate
599
     * encoding: set by user.
600
     * decoding: unused
601
     */
602
    int rc_min_rate;
603
    
604
    /**
605
     * decoder bitstream buffer size
606
     * encoding: set by user.
607
     * decoding: unused
608
     */
609
    int rc_buffer_size;
610
    float rc_buffer_aggressivity;
611

    
612
    /**
613
     * qscale factor between p and i frames
614
     * encoding: set by user.
615
     * decoding: unused
616
     */
617
    float i_quant_factor;
618
    
619
    /**
620
     * qscale offset between p and i frames
621
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
622
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
623
     * encoding: set by user.
624
     * decoding: unused
625
     */
626
    float i_quant_offset;
627
    
628
    /**
629
     * initial complexity for pass1 ratecontrol
630
     * encoding: set by user.
631
     * decoding: unused
632
     */
633
    float rc_initial_cplx;
634

    
635
    /**
636
     * custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
637
     * encoding: set by user.
638
     * decoding: set by lavc.
639
     */
640
    int aspected_width;
641
    int aspected_height;
642

    
643
    /**
644
     * dct algorithm, see FF_DCT_* below
645
     * encoding: set by user
646
     * decoding: unused
647
     */
648
    int dct_algo;
649
#define FF_DCT_AUTO    0
650
#define FF_DCT_FASTINT 1
651
#define FF_DCT_INT     2
652
#define FF_DCT_MMX     3
653
#define FF_DCT_MLIB    4
654
#define FF_DCT_ALTIVEC 5
655

    
656
    /**
657
     * presentation timestamp in micro seconds (time when frame should be shown to user)
658
     * if 0 then the frame_rate will be used as reference
659
     * encoding: set by user
660
     * decoding; set by lavc
661
     */
662
    long long int pts;
663
    
664
    /**
665
     * luminance masking (0-> disabled)
666
     * encoding: set by user
667
     * decoding: unused
668
     */
669
    float lumi_masking;
670
    
671
    /**
672
     * temporary complexity masking (0-> disabled)
673
     * encoding: set by user
674
     * decoding: unused
675
     */
676
    float temporal_cplx_masking;
677
    
678
    /**
679
     * spatial complexity masking (0-> disabled)
680
     * encoding: set by user
681
     * decoding: unused
682
     */
683
    float spatial_cplx_masking;
684
    
685
    /**
686
     * p block masking (0-> disabled)
687
     * encoding: set by user
688
     * decoding: unused
689
     */
690
    float p_masking;
691

    
692
    /**
693
     * darkness masking (0-> disabled)
694
     * encoding: set by user
695
     * decoding: unused
696
     */
697
    float dark_masking;
698
    
699
    /**
700
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
701
     * this is used to workaround some encoder bugs
702
     * encoding: unused
703
     * decoding: set by user, will be converted to upper case by lavc during init
704
     */
705
    int fourcc;
706

    
707
    /**
708
     * idct algorithm, see FF_IDCT_* below
709
     * encoding: set by user
710
     * decoding: set by user
711
     */
712
    int idct_algo;
713
#define FF_IDCT_AUTO         0
714
#define FF_IDCT_INT          1
715
#define FF_IDCT_SIMPLE       2
716
#define FF_IDCT_SIMPLEMMX    3
717
#define FF_IDCT_LIBMPEG2MMX  4
718
#define FF_IDCT_PS2          5
719
#define FF_IDCT_MLIB         6
720
#define FF_IDCT_ARM          7
721
#define FF_IDCT_ALTIVEC      8
722

    
723
    /**
724
     * slice count
725
     * encoding: set by lavc
726
     * decoding: set by user (or 0)
727
     */
728
    int slice_count;
729
    /**
730
     * slice offsets in the frame in bytes
731
     * encoding: set/allocated by lavc
732
     * decoding: set/allocated by user (or NULL)
733
     */
734
    int *slice_offset;
735

    
736
    /**
737
     * error concealment flags
738
     * encoding: unused
739
     * decoding: set by user
740
     */
741
    int error_concealment;
742
#define FF_EC_GUESS_MVS   1
743
#define FF_EC_DEBLOCK     2
744

    
745
    /**
746
     * QP table of the currently decoded frame
747
     * encoding; unused
748
     * decoding: set by lavc
749
     */
750
     int8_t *current_qscale_table;
751
    /**
752
     * QP table of the currently displayed frame
753
     * encoding; unused
754
     * decoding: set by lavc
755
     */
756
     int8_t *display_qscale_table;
757
} AVCodecContext;
758

    
759
typedef struct AVCodec {
760
    char *name;
761
    int type;
762
    int id;
763
    int priv_data_size;
764
    int (*init)(AVCodecContext *);
765
    int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
766
    int (*close)(AVCodecContext *);
767
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
768
                  UINT8 *buf, int buf_size);
769
    int capabilities;
770
    struct AVCodec *next;
771
} AVCodec;
772

    
773
/* three components are given, that's all */
774
typedef struct AVPicture {
775
    UINT8 *data[3];
776
    int linesize[3];
777
} AVPicture;
778

    
779
extern AVCodec ac3_encoder;
780
extern AVCodec mp2_encoder;
781
extern AVCodec mp3lame_encoder;
782
extern AVCodec oggvorbis_encoder;
783
extern AVCodec mpeg1video_encoder;
784
extern AVCodec h263_encoder;
785
extern AVCodec h263p_encoder;
786
extern AVCodec rv10_encoder;
787
extern AVCodec mjpeg_encoder;
788
extern AVCodec mpeg4_encoder;
789
extern AVCodec msmpeg4v1_encoder;
790
extern AVCodec msmpeg4v2_encoder;
791
extern AVCodec msmpeg4v3_encoder;
792
extern AVCodec wmv1_encoder;
793
extern AVCodec wmv2_encoder;
794

    
795
extern AVCodec h263_decoder;
796
extern AVCodec mpeg4_decoder;
797
extern AVCodec msmpeg4v1_decoder;
798
extern AVCodec msmpeg4v2_decoder;
799
extern AVCodec msmpeg4v3_decoder;
800
extern AVCodec wmv1_decoder;
801
extern AVCodec wmv2_decoder;
802
extern AVCodec mpeg_decoder;
803
extern AVCodec h263i_decoder;
804
extern AVCodec rv10_decoder;
805
extern AVCodec svq1_decoder;
806
extern AVCodec dvvideo_decoder;
807
extern AVCodec dvaudio_decoder;
808
extern AVCodec wmav1_decoder;
809
extern AVCodec wmav2_decoder;
810
extern AVCodec mjpeg_decoder;
811
extern AVCodec mp2_decoder;
812
extern AVCodec mp3_decoder;
813
extern AVCodec mace3_decoder;
814
extern AVCodec mace6_decoder;
815

    
816
/* pcm codecs */
817
#define PCM_CODEC(id, name) \
818
extern AVCodec name ## _decoder; \
819
extern AVCodec name ## _encoder;
820

    
821
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
822
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
823
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
824
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
825
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
826
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
827
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
828
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
829

    
830
/* adpcm codecs */
831

    
832
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
833
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
834
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
835

    
836
#undef PCM_CODEC
837

    
838
/* dummy raw video codec */
839
extern AVCodec rawvideo_codec;
840

    
841
/* the following codecs use external GPL libs */
842
extern AVCodec ac3_decoder;
843

    
844
/* resample.c */
845

    
846
struct ReSampleContext;
847

    
848
typedef struct ReSampleContext ReSampleContext;
849

    
850
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
851
                                     int output_rate, int input_rate);
852
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
853
void audio_resample_close(ReSampleContext *s);
854

    
855
/* YUV420 format is assumed ! */
856

    
857
struct ImgReSampleContext;
858

    
859
typedef struct ImgReSampleContext ImgReSampleContext;
860

    
861
ImgReSampleContext *img_resample_init(int output_width, int output_height,
862
                                      int input_width, int input_height);
863

    
864
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
865
                                      int iwidth, int iheight,
866
                                      int topBand, int bottomBand,
867
                                      int leftBand, int rightBand);
868

    
869
void img_resample(ImgReSampleContext *s, 
870
                  AVPicture *output, AVPicture *input);
871

    
872
void img_resample_close(ImgReSampleContext *s);
873

    
874
void avpicture_fill(AVPicture *picture, UINT8 *ptr,
875
                    int pix_fmt, int width, int height);
876
int avpicture_get_size(int pix_fmt, int width, int height);
877

    
878
/* convert among pixel formats */
879
int img_convert(AVPicture *dst, int dst_pix_fmt,
880
                AVPicture *src, int pix_fmt, 
881
                int width, int height);
882

    
883
/* deinterlace a picture */
884
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
885
                          int pix_fmt, int width, int height);
886

    
887
/* external high level API */
888

    
889
extern AVCodec *first_avcodec;
890

    
891
/* returns LIBAVCODEC_VERSION_INT constant */
892
unsigned avcodec_version(void);
893
/* returns LIBAVCODEC_BUILD constant */
894
unsigned avcodec_build(void);
895
void avcodec_init(void);
896

    
897
void avcodec_set_bit_exact(void);
898

    
899
void register_avcodec(AVCodec *format);
900
AVCodec *avcodec_find_encoder(enum CodecID id);
901
AVCodec *avcodec_find_encoder_by_name(const char *name);
902
AVCodec *avcodec_find_decoder(enum CodecID id);
903
AVCodec *avcodec_find_decoder_by_name(const char *name);
904
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
905

    
906
AVCodecContext *avcodec_alloc_context(void);
907
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
908
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples, 
909
                         int *frame_size_ptr,
910
                         UINT8 *buf, int buf_size);
911
int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture, 
912
                         int *got_picture_ptr,
913
                         UINT8 *buf, int buf_size);
914
int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata, 
915
                        int *data_size_ptr,
916
                        UINT8 *buf, int buf_size);
917
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
918
                         const short *samples);
919
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size, 
920
                         const AVPicture *pict);
921

    
922
int avcodec_close(AVCodecContext *avctx);
923

    
924
void avcodec_register_all(void);
925

    
926
void avcodec_flush_buffers(AVCodecContext *avctx);
927

    
928
// deprecated / obsolete stuff, WILL be removed
929
#ifndef MBC
930
#define MBC 128
931
#define MBR 96
932
#endif
933
#define QP_TYPE int
934

    
935
/**
936
 * Interface for 0.5.0 version
937
 *
938
 * do not even think about it's usage for this moment
939
 */
940

    
941
typedef struct {
942
    // compressed size used from given memory buffer
943
    int size;
944
    /// I/P/B frame type
945
    int frame_type;
946
} avc_enc_result_t;
947

    
948
/**
949
 * Commands
950
 * order can't be changed - once it was defined
951
 */
952
typedef enum {
953
    // general commands
954
    AVC_OPEN_BY_NAME = 0xACA000,
955
    AVC_OPEN_BY_CODEC_ID,
956
    AVC_OPEN_BY_FOURCC,
957
    AVC_CLOSE,
958

    
959
    AVC_FLUSH,
960
    // pin - struct { uint8_t* src, uint_t src_size }
961
    // pout - struct { AVPicture* img, consumed_bytes,
962
    AVC_DECODE,
963
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
964
    // pout - uint_t used_from_dest_size
965
    AVC_ENCODE, 
966

    
967
    // query/get video commands
968
    AVC_GET_VERSION = 0xACB000,
969
    AVC_GET_WIDTH,
970
    AVC_GET_HEIGHT,
971
    AVC_GET_DELAY,
972
    AVC_GET_QUANT_TABLE,
973
    // ...
974

    
975
    // query/get audio commands
976
    AVC_GET_FRAME_SIZE = 0xABC000,
977

    
978
    // maybe define some simple structure which
979
    // might be passed to the user - but they can't
980
    // contain any codec specific parts and these
981
    // calls are usualy necessary only few times
982

    
983
    // set video commands
984
    AVC_SET_WIDTH = 0xACD000,
985
    AVC_SET_HEIGHT,
986

    
987
    // set video encoding commands
988
    AVC_SET_FRAME_RATE = 0xACD800,
989
    AVC_SET_QUALITY,
990
    AVC_SET_HURRY_UP,
991

    
992
    // set audio commands
993
    AVC_SET_SAMPLE_RATE = 0xACE000,
994
    AVC_SET_CHANNELS,
995

    
996
} avc_cmd_t;
997

    
998
/**
999
 * \param handle  allocated private structure by libavcodec
1000
 *                for initialization pass NULL - will be returned pout
1001
 *                user is supposed to know nothing about its structure
1002
 * \param cmd     type of operation to be performed
1003
 * \param pint    input parameter
1004
 * \param pout    output parameter
1005
 *
1006
 * \returns  command status - eventually for query command it might return
1007
 * integer resulting value
1008
 */
1009
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1010

    
1011
/* memory */
1012
void *av_malloc(int size);
1013
void *av_mallocz(int size);
1014
void av_free(void *ptr);
1015
void __av_freep(void **ptr);
1016
#define av_freep(p) __av_freep((void **)(p))
1017

    
1018
#endif /* AVCODEC_H */