added BeOS net_server support (R5 network stack), basically the same
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4#include "common.h"
5
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6#define LIBAVCODEC_VERSION_INT 0x000406
7#define LIBAVCODEC_VERSION "0.4.6"
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8#define LIBAVCODEC_BUILD 4633
9#define LIBAVCODEC_BUILD_STR "4633"
4b1f4f23 10
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11enum CodecID {
12 CODEC_ID_NONE,
13 CODEC_ID_MPEG1VIDEO,
14 CODEC_ID_H263,
15 CODEC_ID_RV10,
16 CODEC_ID_MP2,
9d36bdc9 17 CODEC_ID_MP3LAME,
81e0d0b4 18 CODEC_ID_VORBIS,
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19 CODEC_ID_AC3,
20 CODEC_ID_MJPEG,
bf89e6b1 21 CODEC_ID_MPEG4,
de6d9b64 22 CODEC_ID_RAWVIDEO,
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23 CODEC_ID_MSMPEG4V1,
24 CODEC_ID_MSMPEG4V2,
25 CODEC_ID_MSMPEG4V3,
e1a9dbff 26 CODEC_ID_WMV1,
b50eef3a 27 CODEC_ID_WMV2,
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28 CODEC_ID_H263P,
29 CODEC_ID_H263I,
be8ffec9 30 CODEC_ID_SVQ1,
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31 CODEC_ID_DVVIDEO,
32 CODEC_ID_DVAUDIO,
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33 CODEC_ID_WMAV1,
34 CODEC_ID_WMAV2,
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35
36 /* various pcm "codecs" */
37 CODEC_ID_PCM_S16LE,
38 CODEC_ID_PCM_S16BE,
39 CODEC_ID_PCM_U16LE,
40 CODEC_ID_PCM_U16BE,
41 CODEC_ID_PCM_S8,
42 CODEC_ID_PCM_U8,
43 CODEC_ID_PCM_MULAW,
44 CODEC_ID_PCM_ALAW,
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45
46 /* various adpcm codecs */
47 CODEC_ID_ADPCM_IMA_QT,
48 CODEC_ID_ADPCM_IMA_WAV,
49 CODEC_ID_ADPCM_MS,
de6d9b64 50};
84afee34 51#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
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52
53enum CodecType {
4a663d80 54 CODEC_TYPE_UNKNOWN = -1,
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55 CODEC_TYPE_VIDEO,
56 CODEC_TYPE_AUDIO,
57};
58
59enum PixelFormat {
9f862d11 60 PIX_FMT_ANY = -1,
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61 PIX_FMT_YUV420P,
62 PIX_FMT_YUV422,
63 PIX_FMT_RGB24,
64 PIX_FMT_BGR24,
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65 PIX_FMT_YUV422P,
66 PIX_FMT_YUV444P,
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67 PIX_FMT_RGBA32,
68 PIX_FMT_BGRA32,
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69 PIX_FMT_YUV410P,
70 PIX_FMT_YUV411P
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71};
72
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73/* currently unused, may be used if 24/32 bits samples ever supported */
74enum SampleFormat {
75 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
76};
77
de6d9b64 78/* in bytes */
bc8d1857 79#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 80
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81/* motion estimation type, EPZS by default */
82enum Motion_Est_ID {
101bea5f 83 ME_ZERO = 1,
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84 ME_FULL,
85 ME_LOG,
86 ME_PHODS,
87 ME_EPZS,
88 ME_X1
89};
90
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91typedef struct RcOverride{
92 int start_frame;
93 int end_frame;
94 int qscale; // if this is 0 then quality_factor will be used instead
95 float quality_factor;
96} RcOverride;
97
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98/* only for ME compatiblity with old apps */
99extern int motion_estimation_method;
100
e4986da9 101/* ME algos sorted by quality */
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102static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
103 ME_X1, ME_EPZS, ME_FULL };
de6d9b64 104
28db7fce 105
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106#define FF_MAX_B_FRAMES 4
107
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108/* encoding support
109 these flags can be passed in AVCodecContext.flags before initing
110 Note: note not everything is supported yet
111*/
de6d9b64 112
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113#define CODEC_FLAG_HQ 0x0001 /* brute force MB-type decission mode (slow) */
114#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
115#define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
116#define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
117#define CODEC_FLAG_GMC 0x0020 /* use GMC */
118#define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
119#define CODEC_FLAG_PART 0x0080 /* use data partitioning */
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120/* parent program gurantees that the input for b-frame containing streams is not written to
121 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 122#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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123#define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
124#define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
e84c31dc 125#define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
b71901e6 126#define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
93a21abd 127#define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
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128#define CODEC_FLAG_DR1 0x8000 /* direct renderig type 1 (store internal frames in external buffers) */
129#define CODEC_FLAG_NOT_TRUNCATED 0x00010000 /* input bitstream is not truncated, except before a startcode
130 allows the last part of a frame to be decoded earlier */
c5d309f2 131#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 /* normalize adaptive quantization */
fcb48651 132#define CODEC_FLAG_INTERLACED_DCT 0x00040000 /* use interlaced dct */
c5d309f2 133
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134/* codec capabilities */
135
b71901e6 136#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
93a21abd 137#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
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138/* if 'parse_only' field is true, then avcodec_parse_frame() can be
139 used */
140#define CODEC_CAP_PARSE_ONLY 0x0004
bf89e6b1 141
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142#define FRAME_RATE_BASE 10000
143
144typedef struct AVCodecContext {
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145 /**
146 * the average bitrate
147 * encoding: set by user. unused for constant quantizer encoding
148 * decoding: set by lavc. 0 or some bitrate if this info is available in the stream
149 */
de6d9b64 150 int bit_rate;
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151
152 /**
153 * number of bits the bitstream is allowed to diverge from the reference
154 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
155 * encoding: set by user. unused for constant quantizer encoding
156 * decoding: unused
157 */
158 int bit_rate_tolerance;
159
160 /**
161 * CODEC_FLAG_*
162 * encoding: set by user.
163 * decoding: set by user.
164 */
de6d9b64 165 int flags;
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166
167 /**
168 * some codecs needs additionnal format info. It is stored here
169 * encoding: set by user.
170 * decoding: set by lavc. (FIXME is this ok?)
171 */
172 int sub_id;
173
174 /**
175 * motion estimation algorithm used for video coding
176 * encoding: set by user.
177 * decoding: unused
178 */
179 int me_method;
180
181 /**
182 * some codecs need / can use extra-data like huffman tables
183 * mjpeg: huffman tables
184 * rv10: additional flags
b704e742 185 * mpeg4: global headers (they can be in the bitstream or here)
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186 * encoding: set/allocated/freed by lavc.
187 * decoding: set/allocated/freed by user.
b71901e6 188 */
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189 void *extradata;
190 int extradata_size;
191
de6d9b64 192 /* video only */
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193 /**
194 * frames per sec multiplied by FRAME_RATE_BASE
195 * for variable fps this is the precission, so if the timestamps
196 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
197 * encoding: set by user
198 * decoding: set by lavc. 0 or the frame_rate if available
199 */
200 int frame_rate;
201
202 /**
203 * encoding: set by user.
204 * decoding: set by user, some codecs might override / change it during playback
205 */
de6d9b64 206 int width, height;
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207
208 /**
209 * encoding: set by user. 0 if not known
210 * decoding: set by lavc. 0 if not known
211 */
11ce8834 212 int aspect_ratio_info;
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213#define FF_ASPECT_SQUARE 1
214#define FF_ASPECT_4_3_625 2
215#define FF_ASPECT_4_3_525 3
216#define FF_ASPECT_16_9_625 4
217#define FF_ASPECT_16_9_525 5
e769f053 218#define FF_ASPECT_EXTENDED 15
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219
220 /**
221 * the number of pictures in a group of pitures, or 0 for intra_only
222 * encoding: set by user.
223 * decoding: unused
224 */
225 int gop_size;
226
227 /**
228 * pixel format, see PIX_FMT_xxx
229 * encoding: unused
230 * decoding: set by lavc.
231 */
232 enum PixelFormat pix_fmt;
233
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234 int repeat_pict; /* when decoding, this signal how much the picture */
235 /* must be delayed. */
236 /* extra_delay = (repeat_pict / 2) * (1/fps) */
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237
238 /**
239 * if non NULL, 'draw_horiz_band' is called by the libavcodec
240 * decoder to draw an horizontal band. It improve cache usage. Not
241 * all codecs can do that. You must check the codec capabilities
242 * before
243 * encoding: unused
244 * decoding: set by user.
245 */
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246 void (*draw_horiz_band)(struct AVCodecContext *s,
247 UINT8 **src_ptr, int linesize,
248 int y, int width, int height);
249
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250 /* audio only */
251 int sample_rate; /* samples per sec */
252 int channels;
a96b68b7 253 int sample_fmt; /* sample format, currenly unused */
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254
255 /* the following data should not be initialized */
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256 int frame_size; /* in samples, initialized when calling 'init' */
257 int frame_number; /* audio or video frame number */
258 int real_pict_num; /* returns the real picture number of
259 previous encoded frame */
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260
261 /**
262 * 1 -> keyframe, 0-> not
263 * encoding: set by lavc (for the outputed bitstream, not the input frame)
264 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
265 */
266 int key_frame;
267
268 /**
269 * picture type of the previous en/decoded frame, see ?_TYPE below
270 * encoding: set by lavc (for the outputed bitstream, not the input frame)
271 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
272 */
273 int pict_type;
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274/* FIXME: these should have FF_ */
275#define I_TYPE 1 // Intra
276#define P_TYPE 2 // Predicted
277#define B_TYPE 3 // Bi-dir predicted
278#define S_TYPE 4 // S(GMC)-VOP MPEG4
279
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280 /**
281 * number of frames the decoded output will be delayed relative to
282 * the encoded input
283 * encoding: set by lavc.
284 * decoding: unused
285 */
286 int delay;
287
288 /**
289 * mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames
290 * stride= mb_width = (width+15)>>4 (FIXME export stride?)
291 * encoding: unused
292 * decoding: set by lavc
293 */
294 uint8_t *mbskip_table;
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295
296 /* encoding parameters */
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297 /**
298 * quality (between 1 (good) and 31 (bad))
299 * encoding: set by user if CODEC_FLAG_QSCALE is set otherwise set by lavc
300 * decoding: set by lavc
301 */
de6d9b64 302 int quality; /* quality of the previous encoded frame
c5d309f2 303
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304 this is allso used to set the quality in vbr mode
305 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
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306 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
307 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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308
309 /**
310 * minimum quantizer
311 * encoding: set by user.
312 * decoding: unused
313 */
314 int qmin;
315
316 /**
317 * maximum quantizer
318 * encoding: set by user.
319 * decoding: unused
320 */
321 int qmax;
322
323 /**
324 * maximum quantizer difference etween frames
325 * encoding: set by user.
326 * decoding: unused
327 */
328 int max_qdiff;
329
330 /**
331 * maximum number of b frames between non b frames
332 * note: the output will be delayed by max_b_frames+1 relative to the input
333 * encoding: set by user.
334 * decoding: unused
335 */
336 int max_b_frames;
337
338 /**
339 * qscale factor between ip and b frames
340 * encoding: set by user.
341 * decoding: unused
342 */
343 float b_quant_factor;
344
345 /** obsolete FIXME remove */
346 int rc_strategy;
8b4c7dbc 347 int b_frame_strategy;
9dbcbd92 348
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349 /**
350 * encoding: unused
351 * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too
352 */
353 int hurry_up;
2417652e 354
de6d9b64 355 struct AVCodec *codec;
b71901e6 356
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357 void *priv_data;
358
644d98a4 359 /* The following data is for RTP friendly coding */
1f6b6e50 360 /* By now only H.263/H.263+/MPEG4 coder honours this */
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361 int rtp_mode; /* 1 for activate RTP friendly-mode */
362 /* highers numbers represent more error-prone */
363 /* enviroments, by now just "1" exist */
364
365 int rtp_payload_size; /* The size of the RTP payload, the coder will */
366 /* do it's best to deliver a chunk with size */
367 /* below rtp_payload_size, the chunk will start */
368 /* with a start code on some codecs like H.263 */
369 /* This doesn't take account of any particular */
370 /* headers inside the transmited RTP payload */
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371
372
373 /* The RTP callcack: This function is called */
374 /* every time the encoder as a packet to send */
375 /* Depends on the encoder if the data starts */
376 /* with a Start Code (it should) H.263 does */
377 void (*rtp_callback)(void *data, int size, int packet_number);
378
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379 /**
380 * if you set get_psnr to 1 then after encoding you will have the
381 * PSNR on psnr_y/cb/cr
382 * encoding: set by user (1-> on, 0-> off)
383 * decoding: unused
384 */
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385 int get_psnr;
386 float psnr_y;
387 float psnr_cb;
388 float psnr_cr;
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389
390 /* statistics, used for 2-pass encoding */
391 int mv_bits;
392 int header_bits;
393 int i_tex_bits;
394 int p_tex_bits;
395 int i_count;
396 int p_count;
397 int skip_count;
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398 int misc_bits;
399
400 /**
401 * number of bits used for the previously encoded frame
402 * encoding: set by lavc
403 * decoding: unused
404 */
098eefe1 405 int frame_bits;
644d98a4 406
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407 /**
408 * private data of the user, can be used to carry app specific stuff
409 * encoding: set by user
410 * decoding: set by user
411 */
412 void *opaque;
413
de6d9b64 414 char codec_name[32];
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415 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
416 enum CodecID codec_id; /* see CODEC_ID_xxx */
de6d9b64 417 unsigned int codec_tag; /* codec tag, only used if unknown codec */
92ba5ffb 418
b71901e6 419 /**
4d2858de 420 * workaround bugs in encoders which sometimes cannot be detected automatically
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421 * encoding: unused
422 * decoding: set by user
423 */
424 int workaround_bugs;
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425#define FF_BUG_AUTODETECT 1 //autodetection
426#define FF_BUG_OLD_MSMPEG4 2
427#define FF_BUG_XVID_ILACE 4
428#define FF_BUG_UMP4 8
429#define FF_BUG_NO_PADDING 16
430#define FF_BUG_AC_VLC 32
03e93d35 431#define FF_BUG_QPEL_CHROMA 64
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432//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
433
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434 /**
435 * encoding: set by user
436 * decoding: unused
437 */
1f6b6e50 438 int luma_elim_threshold;
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439
440 /**
441 * encoding: set by user
442 * decoding: unused
443 */
1f6b6e50 444 int chroma_elim_threshold;
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445
446 /**
447 * strictly follow the std (MPEG4, ...)
448 * encoding: set by user
449 * decoding: unused
450 */
451 int strict_std_compliance;
452
453 /**
454 * qscale offset between ip and b frames
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455 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
456 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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457 * encoding: set by user.
458 * decoding: unused
459 */
460 float b_quant_offset;
461
462 /**
463 * error resilience {-1,0,1} higher values will detect more errors but may missdetect
464 * some more or less valid parts as errors
465 * encoding: unused
466 * decoding: set by user
467 */
1f6b6e50 468 int error_resilience;
ae72cda6 469
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470 /**
471 * obsolete, just here to keep ABI compatible (should be removed perhaps, dunno)
472 */
473 int *quant_store;
93a21abd 474
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475 /**
476 * QP store stride
477 * encoding: unused
478 * decoding: set by lavc
479 */
480 int qstride;
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481
482 /**
483 * buffer, where the next picture should be decoded into
484 * encoding: unused
485 * decoding: set by user in get_buffer_callback to a buffer into which the next part
486 * of the bitstream will be decoded, and set by lavc at end of frame to the
487 * next frame which needs to be displayed
488 */
93a21abd 489 uint8_t *dr_buffer[3];
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490
491 /**
492 * stride of the luminance part of the dr buffer
493 * encoding: unused
494 * decoding: set by user
495 */
93a21abd 496 int dr_stride;
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497
498 /**
499 * same behavior as dr_buffer, just for some private data of the user
500 * encoding: unused
501 * decoding: set by user in get_buffer_callback, and set by lavc at end of frame
502 */
93a21abd 503 void *dr_opaque_frame;
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504
505 /**
506 * called at the beginning of each frame to get a buffer for it
507 * encoding: unused
508 * decoding: set by user
509 */
d6db1c9c 510 int (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
0fd90455 511
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512 /**
513 * is 1 if the decoded stream contains b frames, 0 otherwise
514 * encoding: unused
515 * decoding: set by lavc
516 */
517 int has_b_frames;
518
519 /**
520 * stride of the chrominance part of the dr buffer
521 * encoding: unused
522 * decoding: set by user
523 */
0fd90455 524 int dr_uvstride;
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525
526 /**
527 * number of dr buffers
528 * encoding: unused
529 * decoding: set by user
530 */
0fd90455 531 int dr_ip_buffer_count;
b71901e6 532
bc8d1857 533 int block_align; /* used by some WAV based audio codecs */
ce980a95 534
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535 int parse_only; /* decoding only: if true, only parsing is done
536 (function avcodec_parse_frame()). The frame
537 data is returned. Only MPEG codecs support this now. */
ce980a95 538
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539 /**
540 * 0-> h263 quant 1-> mpeg quant
541 * encoding: set by user.
542 * decoding: unused
543 */
544 int mpeg_quant;
ce980a95 545
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546 /**
547 * pass1 encoding statistics output buffer
548 * encoding: set by lavc
549 * decoding: unused
550 */
ce980a95 551 char *stats_out; /* encoding statistics output buffer */
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552
553 /**
554 * pass2 encoding statistics input buffer.
555 * concatenated stuff from stats_out of pass1 should be placed here
556 * encoding: allocated/set/freed by user
557 * decoding: unused
558 */
559 char *stats_in;
560
561 /**
562 * ratecontrol qmin qmax limiting method
563 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
564 * encoding: set by user.
565 * decoding: unused
566 */
ce980a95 567 float rc_qsquish;
b71901e6 568
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569 float rc_qmod_amp;
570 int rc_qmod_freq;
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571
572 /**
573 * ratecontrol override, see RcOverride
574 * encoding: allocated/set/freed by user.
575 * decoding: unused
576 */
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577 RcOverride *rc_override;
578 int rc_override_count;
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579
580 /**
581 * rate control equation
582 * encoding: set by user
583 * decoding: unused
584 */
ce980a95 585 char *rc_eq;
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586
587 /**
588 * maximum bitrate
589 * encoding: set by user.
590 * decoding: unused
591 */
ce980a95 592 int rc_max_rate;
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593
594 /**
595 * minimum bitrate
596 * encoding: set by user.
597 * decoding: unused
598 */
ce980a95 599 int rc_min_rate;
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600
601 /**
602 * decoder bitstream buffer size
603 * encoding: set by user.
604 * decoding: unused
605 */
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606 int rc_buffer_size;
607 float rc_buffer_aggressivity;
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608
609 /**
610 * qscale factor between p and i frames
611 * encoding: set by user.
612 * decoding: unused
613 */
614 float i_quant_factor;
615
616 /**
617 * qscale offset between p and i frames
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618 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
619 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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620 * encoding: set by user.
621 * decoding: unused
622 */
623 float i_quant_offset;
624
625 /**
626 * initial complexity for pass1 ratecontrol
627 * encoding: set by user.
628 * decoding: unused
629 */
ce980a95 630 float rc_initial_cplx;
917e06c8 631
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632 /**
633 * custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
634 * encoding: set by user.
635 * decoding: set by lavc.
636 */
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637 int aspected_width;
638 int aspected_height;
639
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640 /**
641 * dct algorithm, see FF_DCT_* below
642 * encoding: set by user
643 * decoding: unused
644 */
28db7fce 645 int dct_algo;
c7e07931 646#define FF_DCT_AUTO 0
28db7fce 647#define FF_DCT_FASTINT 1
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648#define FF_DCT_INT 2
649#define FF_DCT_MMX 3
650#define FF_DCT_MLIB 4
28db7fce 651
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652 /**
653 * presentation timestamp in micro seconds (time when frame should be shown to user)
654 * if 0 then the frame_rate will be used as reference
655 * encoding: set by user
656 * decoding; set by lavc
657 */
658 long long int pts;
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659
660 /**
661 * luminance masking (0-> disabled)
662 * encoding: set by user
663 * decoding: unused
664 */
665 float lumi_masking;
666
667 /**
668 * temporary complexity masking (0-> disabled)
669 * encoding: set by user
670 * decoding: unused
671 */
672 float temporal_cplx_masking;
673
674 /**
675 * spatial complexity masking (0-> disabled)
676 * encoding: set by user
677 * decoding: unused
678 */
679 float spatial_cplx_masking;
680
681 /**
682 * p block masking (0-> disabled)
683 * encoding: set by user
684 * decoding: unused
685 */
686 float p_masking;
15415af4 687
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688 /**
689 * darkness masking (0-> disabled)
690 * encoding: set by user
691 * decoding: unused
692 */
693 float dark_masking;
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694
695 /**
696 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
697 * this is used to workaround some encoder bugs
698 * encoding: unused
202ef8b8 699 * decoding: set by user, will be converted to upper case by lavc during init
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700 */
701 int fourcc;
5e746b99 702
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703 /**
704 * idct algorithm, see FF_IDCT_* below
705 * encoding: set by user
706 * decoding: set by user
707 */
708 int idct_algo;
709#define FF_IDCT_AUTO 0
710#define FF_IDCT_INT 1
711#define FF_IDCT_SIMPLE 2
712#define FF_IDCT_SIMPLEMMX 3
713#define FF_IDCT_LIBMPEG2MMX 4
714#define FF_IDCT_PS2 5
715#define FF_IDCT_MLIB 6
716#define FF_IDCT_ARM 7
717
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718 /**
719 * slice count
720 * encoding: set by lavc
721 * decoding: set by user (or 0)
722 */
723 int slice_count;
724 /**
725 * slice offsets in the frame in bytes
726 * encoding: set/allocated by lavc
727 * decoding: set/allocated by user (or NULL)
728 */
729 int *slice_offset;
730
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731 /**
732 * error concealment flags
733 * encoding: unused
734 * decoding: set by user
735 */
736 int error_concealment;
737#define FF_EC_GUESS_MVS 1
738#define FF_EC_DEBLOCK 2
739
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740 /**
741 * QP table of the currently decoded frame
742 * encoding; unused
743 * decoding: set by lavc
744 */
745 int8_t *current_qscale_table;
746 /**
747 * QP table of the currently displayed frame
748 * encoding; unused
749 * decoding: set by lavc
750 */
751 int8_t *display_qscale_table;
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752} AVCodecContext;
753
754typedef struct AVCodec {
755 char *name;
756 int type;
757 int id;
758 int priv_data_size;
759 int (*init)(AVCodecContext *);
760 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
761 int (*close)(AVCodecContext *);
0fd90455 762 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
de6d9b64 763 UINT8 *buf, int buf_size);
bf89e6b1 764 int capabilities;
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765 struct AVCodec *next;
766} AVCodec;
767
768/* three components are given, that's all */
769typedef struct AVPicture {
770 UINT8 *data[3];
771 int linesize[3];
772} AVPicture;
773
774extern AVCodec ac3_encoder;
775extern AVCodec mp2_encoder;
9d36bdc9 776extern AVCodec mp3lame_encoder;
81e0d0b4 777extern AVCodec oggvorbis_encoder;
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778extern AVCodec mpeg1video_encoder;
779extern AVCodec h263_encoder;
780extern AVCodec h263p_encoder;
781extern AVCodec rv10_encoder;
782extern AVCodec mjpeg_encoder;
bf89e6b1 783extern AVCodec mpeg4_encoder;
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784extern AVCodec msmpeg4v1_encoder;
785extern AVCodec msmpeg4v2_encoder;
786extern AVCodec msmpeg4v3_encoder;
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787extern AVCodec wmv1_encoder;
788extern AVCodec wmv2_encoder;
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789
790extern AVCodec h263_decoder;
bf89e6b1 791extern AVCodec mpeg4_decoder;
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792extern AVCodec msmpeg4v1_decoder;
793extern AVCodec msmpeg4v2_decoder;
794extern AVCodec msmpeg4v3_decoder;
e1a9dbff 795extern AVCodec wmv1_decoder;
0151a6f5 796extern AVCodec wmv2_decoder;
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797extern AVCodec mpeg_decoder;
798extern AVCodec h263i_decoder;
799extern AVCodec rv10_decoder;
be8ffec9 800extern AVCodec svq1_decoder;
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801extern AVCodec dvvideo_decoder;
802extern AVCodec dvaudio_decoder;
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803extern AVCodec wmav1_decoder;
804extern AVCodec wmav2_decoder;
4e66ab3b 805extern AVCodec mjpeg_decoder;
4b1f4f23 806extern AVCodec mp2_decoder;
a96b68b7 807extern AVCodec mp3_decoder;
de6d9b64 808
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809/* pcm codecs */
810#define PCM_CODEC(id, name) \
811extern AVCodec name ## _decoder; \
812extern AVCodec name ## _encoder;
813
814PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
815PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
816PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
817PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
818PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
819PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
820PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
821PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
822
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823/* adpcm codecs */
824
825PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
826PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
827PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
828
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829#undef PCM_CODEC
830
831/* dummy raw video codec */
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832extern AVCodec rawvideo_codec;
833
834/* the following codecs use external GPL libs */
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835extern AVCodec ac3_decoder;
836
837/* resample.c */
838
839struct ReSampleContext;
840
841typedef struct ReSampleContext ReSampleContext;
842
843ReSampleContext *audio_resample_init(int output_channels, int input_channels,
844 int output_rate, int input_rate);
845int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
846void audio_resample_close(ReSampleContext *s);
847
848/* YUV420 format is assumed ! */
849
850struct ImgReSampleContext;
851
852typedef struct ImgReSampleContext ImgReSampleContext;
853
854ImgReSampleContext *img_resample_init(int output_width, int output_height,
855 int input_width, int input_height);
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856
857ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
858 int iwidth, int iheight,
859 int topBand, int bottomBand,
860 int leftBand, int rightBand);
861
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862void img_resample(ImgReSampleContext *s,
863 AVPicture *output, AVPicture *input);
864
865void img_resample_close(ImgReSampleContext *s);
866
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867void avpicture_fill(AVPicture *picture, UINT8 *ptr,
868 int pix_fmt, int width, int height);
869int avpicture_get_size(int pix_fmt, int width, int height);
870
871/* convert among pixel formats */
872int img_convert(AVPicture *dst, int dst_pix_fmt,
873 AVPicture *src, int pix_fmt,
874 int width, int height);
875
876/* deinterlace a picture */
877int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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878 int pix_fmt, int width, int height);
879
880/* external high level API */
881
882extern AVCodec *first_avcodec;
883
156e5023 884/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 885unsigned avcodec_version(void);
8bceb6af 886/* returns LIBAVCODEC_BUILD constant */
51a49663 887unsigned avcodec_build(void);
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888void avcodec_init(void);
889
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890void avcodec_set_bit_exact(void);
891
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892void register_avcodec(AVCodec *format);
893AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 894AVCodec *avcodec_find_encoder_by_name(const char *name);
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895AVCodec *avcodec_find_decoder(enum CodecID id);
896AVCodec *avcodec_find_decoder_by_name(const char *name);
897void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
898
7ffbb60e 899AVCodecContext *avcodec_alloc_context(void);
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900int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
901int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
902 int *frame_size_ptr,
903 UINT8 *buf, int buf_size);
904int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
905 int *got_picture_ptr,
906 UINT8 *buf, int buf_size);
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907int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
908 int *data_size_ptr,
909 UINT8 *buf, int buf_size);
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910int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
911 const short *samples);
912int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
913 const AVPicture *pict);
914
915int avcodec_close(AVCodecContext *avctx);
916
917void avcodec_register_all(void);
a96b68b7 918
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919void avcodec_flush_buffers(AVCodecContext *avctx);
920
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921// deprecated / obsolete stuff, WILL be removed
922#ifndef MBC
923#define MBC 128
924#define MBR 96
79e7b305 925#endif
6b72ac63 926#define QP_TYPE int
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927
928/**
929 * Interface for 0.5.0 version
930 *
931 * do not even think about it's usage for this moment
932 */
933
934typedef struct {
935 // compressed size used from given memory buffer
936 int size;
937 /// I/P/B frame type
938 int frame_type;
939} avc_enc_result_t;
940
941/**
942 * Commands
943 * order can't be changed - once it was defined
944 */
945typedef enum {
946 // general commands
947 AVC_OPEN_BY_NAME = 0xACA000,
948 AVC_OPEN_BY_CODEC_ID,
949 AVC_OPEN_BY_FOURCC,
950 AVC_CLOSE,
951
952 AVC_FLUSH,
953 // pin - struct { uint8_t* src, uint_t src_size }
954 // pout - struct { AVPicture* img, consumed_bytes,
955 AVC_DECODE,
956 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
957 // pout - uint_t used_from_dest_size
958 AVC_ENCODE,
959
960 // query/get video commands
961 AVC_GET_VERSION = 0xACB000,
962 AVC_GET_WIDTH,
963 AVC_GET_HEIGHT,
964 AVC_GET_DELAY,
965 AVC_GET_QUANT_TABLE,
966 // ...
967
968 // query/get audio commands
969 AVC_GET_FRAME_SIZE = 0xABC000,
970
971 // maybe define some simple structure which
972 // might be passed to the user - but they can't
973 // contain any codec specific parts and these
974 // calls are usualy necessary only few times
975
976 // set video commands
977 AVC_SET_WIDTH = 0xACD000,
978 AVC_SET_HEIGHT,
979
980 // set video encoding commands
981 AVC_SET_FRAME_RATE = 0xACD800,
982 AVC_SET_QUALITY,
983 AVC_SET_HURRY_UP,
984
985 // set audio commands
986 AVC_SET_SAMPLE_RATE = 0xACE000,
987 AVC_SET_CHANNELS,
988
989} avc_cmd_t;
990
991/**
992 * \param handle allocated private structure by libavcodec
993 * for initialization pass NULL - will be returned pout
994 * user is supposed to know nothing about its structure
995 * \param cmd type of operation to be performed
996 * \param pint input parameter
997 * \param pout output parameter
998 *
999 * \returns command status - eventually for query command it might return
1000 * integer resulting value
1001 */
1002int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1003
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1004/* memory */
1005void *av_malloc(int size);
1006void *av_mallocz(int size);
1007void av_free(void *ptr);
1008void __av_freep(void **ptr);
1009#define av_freep(p) __av_freep((void **)(p))
1010
a96b68b7 1011#endif /* AVCODEC_H */