correct mpeg4 vo type
[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 4643
9#define LIBAVCODEC_BUILD_STR "4643"
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,
b135d9fb 21 CODEC_ID_MJPEGB,
bf89e6b1 22 CODEC_ID_MPEG4,
de6d9b64 23 CODEC_ID_RAWVIDEO,
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24 CODEC_ID_MSMPEG4V1,
25 CODEC_ID_MSMPEG4V2,
26 CODEC_ID_MSMPEG4V3,
e1a9dbff 27 CODEC_ID_WMV1,
b50eef3a 28 CODEC_ID_WMV2,
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29 CODEC_ID_H263P,
30 CODEC_ID_H263I,
be8ffec9 31 CODEC_ID_SVQ1,
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32 CODEC_ID_DVVIDEO,
33 CODEC_ID_DVAUDIO,
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34 CODEC_ID_WMAV1,
35 CODEC_ID_WMAV2,
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36 CODEC_ID_MACE3,
37 CODEC_ID_MACE6,
11f18faf 38 CODEC_ID_HUFFYUV,
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39
40 /* various pcm "codecs" */
41 CODEC_ID_PCM_S16LE,
42 CODEC_ID_PCM_S16BE,
43 CODEC_ID_PCM_U16LE,
44 CODEC_ID_PCM_U16BE,
45 CODEC_ID_PCM_S8,
46 CODEC_ID_PCM_U8,
47 CODEC_ID_PCM_MULAW,
48 CODEC_ID_PCM_ALAW,
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49
50 /* various adpcm codecs */
51 CODEC_ID_ADPCM_IMA_QT,
52 CODEC_ID_ADPCM_IMA_WAV,
53 CODEC_ID_ADPCM_MS,
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54};
55
56enum CodecType {
4a663d80 57 CODEC_TYPE_UNKNOWN = -1,
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58 CODEC_TYPE_VIDEO,
59 CODEC_TYPE_AUDIO,
60};
61
62enum PixelFormat {
9f862d11 63 PIX_FMT_ANY = -1,
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64 PIX_FMT_YUV420P,
65 PIX_FMT_YUV422,
66 PIX_FMT_RGB24,
67 PIX_FMT_BGR24,
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68 PIX_FMT_YUV422P,
69 PIX_FMT_YUV444P,
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70 PIX_FMT_RGBA32,
71 PIX_FMT_BGRA32,
e9feea59 72 PIX_FMT_YUV410P,
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73 PIX_FMT_YUV411P,
74 PIX_FMT_RGB565,
75 PIX_FMT_RGB555,
76// PIX_FMT_RGB5551,
77 PIX_FMT_BGR565,
78 PIX_FMT_BGR555,
79// PIX_FMT_GBR565,
80// PIX_FMT_GBR555
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81};
82
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83/* currently unused, may be used if 24/32 bits samples ever supported */
84enum SampleFormat {
85 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
86};
87
de6d9b64 88/* in bytes */
bc8d1857 89#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 90
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91/**
92 * Required number of zero bytes at the end of the input bitstream for decoding.
93 * to avoid overreading (and possibly segfaulting)
94 */
95#define FF_INPUT_BUFFER_PADDING_SIZE 8
96
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97/* motion estimation type, EPZS by default */
98enum Motion_Est_ID {
101bea5f 99 ME_ZERO = 1,
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100 ME_FULL,
101 ME_LOG,
102 ME_PHODS,
103 ME_EPZS,
104 ME_X1
105};
106
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107typedef struct RcOverride{
108 int start_frame;
109 int end_frame;
110 int qscale; // if this is 0 then quality_factor will be used instead
111 float quality_factor;
112} RcOverride;
113
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114/* only for ME compatiblity with old apps */
115extern int motion_estimation_method;
116
e4986da9 117/* ME algos sorted by quality */
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118static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
119 ME_X1, ME_EPZS, ME_FULL };
de6d9b64 120
28db7fce 121
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122#define FF_MAX_B_FRAMES 4
123
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124/* encoding support
125 these flags can be passed in AVCodecContext.flags before initing
126 Note: note not everything is supported yet
127*/
de6d9b64 128
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129#define CODEC_FLAG_HQ 0x0001 /* brute force MB-type decission mode (slow) */
130#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
131#define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
132#define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
133#define CODEC_FLAG_GMC 0x0020 /* use GMC */
b71901e6 134#define CODEC_FLAG_PART 0x0080 /* use data partitioning */
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135/* parent program gurantees that the input for b-frame containing streams is not written to
136 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 137#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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138#define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
139#define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
e84c31dc 140#define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
b71901e6 141#define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
93a21abd 142#define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
140cb663 143#define CODEC_FLAG_PSNR 0x8000 /* error[?] variables will be set during encoding */
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144#define CODEC_FLAG_TRUNCATED 0x00010000 /* input bitstream might be truncated at a random location instead
145 of only at frame boundaries */
c5d309f2 146#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 /* normalize adaptive quantization */
fcb48651 147#define CODEC_FLAG_INTERLACED_DCT 0x00040000 /* use interlaced dct */
9f9c3229 148#define CODEC_FLAG_LOW_DELAY 0x00080000 /* force low delay / will fail on b frames */
5d3cea3a 149#define CODEC_FLAG_ALT_SCAN 0x00100000 /* use alternate scan */
c5d309f2 150
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151/* codec capabilities */
152
b71901e6 153#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
93a21abd 154#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
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155/* if 'parse_only' field is true, then avcodec_parse_frame() can be
156 used */
157#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 158#define CODEC_CAP_TRUNCATED 0x0008
bf89e6b1 159
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160#define FRAME_RATE_BASE 10000
161
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162#define FF_COMMON_PICTURE \
163 uint8_t *data[4];\
164 int linesize[4];\
165 /**\
32db2b1d 166 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
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167 * this isnt used by lavc unless the default get/release_buffer() is used\
168 * encoding: \
169 * decoding: \
170 */\
171 uint8_t *base[4];\
172 /**\
173 * 1 -> keyframe, 0-> not\
174 * encoding: set by lavc\
175 * decoding: set by lavc\
176 */\
177 int key_frame;\
178\
179 /**\
180 * picture type of the frame, see ?_TYPE below\
181 * encoding: set by lavc for coded_picture (and set by user for input)\
182 * decoding: set by lavc\
183 */\
184 int pict_type;\
185\
186 /**\
187 * presentation timestamp in micro seconds (time when frame should be shown to user)\
188 * if 0 then the frame_rate will be used as reference\
189 * encoding: MUST be set by user\
190 * decoding: set by lavc\
191 */\
192 long long int pts;\
193\
194 /**\
195 * picture number in bitstream order.\
196 * encoding: set by\
197 * decoding: set by lavc\
198 */\
199 int coded_picture_number;\
200 /**\
201 * encoding: set by\
202 * decoding: set by lavc\
203 * picture number in display order.\
204 */\
205 int display_picture_number;\
206\
207 /**\
208 * quality (between 1 (good) and 31 (bad)) \
209 * encoding: set by lavc for coded_picture (and set by user for input)\
210 * decoding: set by lavc\
211 */\
212 float quality; \
213\
214 /**\
215 * buffer age (1->was last buffer and dint change, 2->..., ...).\
216 * set to something large if the buffer has not been used yet \
217 * encoding: unused\
218 * decoding: MUST be set by get_buffer()\
219 */\
220 int age;\
221\
222 /**\
223 * is this picture used as reference\
224 * encoding: unused\
225 * decoding: set by lavc (before get_buffer() call))\
226 */\
227 int reference;\
228\
229 /**\
230 * QP table\
231 * encoding: unused\
232 * decoding: set by lavc\
233 */\
234 int8_t *qscale_table;\
235 /**\
236 * QP store stride\
237 * encoding: unused\
238 * decoding: set by lavc\
239 */\
240 int qstride;\
241\
242 /**\
243 * mbskip_table[mb]>=1 if MB didnt change\
244 * stride= mb_width = (width+15)>>4\
245 * encoding: unused\
246 * decoding: set by lavc\
247 */\
248 uint8_t *mbskip_table;\
249\
250 /**\
251 * for some private data of the user\
252 * encoding: unused\
253 * decoding: set by user\
254 */\
255 void *opaque;\
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256\
257 /**\
258 * error\
259 * encoding: set by lavc if flags&CODEC_FLAG_PSNR\
260 * decoding: unused\
261 */\
262 uint64_t error[4];\
1e491e29 263
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264#define FF_I_TYPE 1 // Intra
265#define FF_P_TYPE 2 // Predicted
266#define FF_B_TYPE 3 // Bi-dir predicted
267#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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268
269typedef struct AVVideoFrame {
270 FF_COMMON_PICTURE
271} AVVideoFrame;
272
de6d9b64 273typedef struct AVCodecContext {
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274 /**
275 * the average bitrate
276 * encoding: set by user. unused for constant quantizer encoding
277 * decoding: set by lavc. 0 or some bitrate if this info is available in the stream
278 */
de6d9b64 279 int bit_rate;
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280
281 /**
282 * number of bits the bitstream is allowed to diverge from the reference
283 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
284 * encoding: set by user. unused for constant quantizer encoding
285 * decoding: unused
286 */
287 int bit_rate_tolerance;
288
289 /**
290 * CODEC_FLAG_*
291 * encoding: set by user.
292 * decoding: set by user.
293 */
de6d9b64 294 int flags;
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295
296 /**
297 * some codecs needs additionnal format info. It is stored here
298 * encoding: set by user.
299 * decoding: set by lavc. (FIXME is this ok?)
300 */
301 int sub_id;
302
303 /**
304 * motion estimation algorithm used for video coding
1e491e29 305 * encoding: MUST be set by user.
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306 * decoding: unused
307 */
308 int me_method;
309
310 /**
311 * some codecs need / can use extra-data like huffman tables
312 * mjpeg: huffman tables
313 * rv10: additional flags
b704e742 314 * mpeg4: global headers (they can be in the bitstream or here)
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315 * encoding: set/allocated/freed by lavc.
316 * decoding: set/allocated/freed by user.
b71901e6 317 */
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318 void *extradata;
319 int extradata_size;
320
de6d9b64 321 /* video only */
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322 /**
323 * frames per sec multiplied by FRAME_RATE_BASE
324 * for variable fps this is the precission, so if the timestamps
325 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
1e491e29 326 * encoding: MUST be set by user
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327 * decoding: set by lavc. 0 or the frame_rate if available
328 */
329 int frame_rate;
330
331 /**
1e491e29 332 * encoding: MUST be set by user.
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333 * decoding: set by user, some codecs might override / change it during playback
334 */
de6d9b64 335 int width, height;
b71901e6 336
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337#define FF_ASPECT_SQUARE 1
338#define FF_ASPECT_4_3_625 2
339#define FF_ASPECT_4_3_525 3
340#define FF_ASPECT_16_9_625 4
341#define FF_ASPECT_16_9_525 5
e769f053 342#define FF_ASPECT_EXTENDED 15
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343
344 /**
345 * the number of pictures in a group of pitures, or 0 for intra_only
346 * encoding: set by user.
347 * decoding: unused
348 */
349 int gop_size;
350
351 /**
352 * pixel format, see PIX_FMT_xxx
353 * encoding: unused
354 * decoding: set by lavc.
355 */
356 enum PixelFormat pix_fmt;
357
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358 int repeat_pict; /* when decoding, this signal how much the picture */
359 /* must be delayed. */
360 /* extra_delay = (repeat_pict / 2) * (1/fps) */
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361
362 /**
363 * if non NULL, 'draw_horiz_band' is called by the libavcodec
364 * decoder to draw an horizontal band. It improve cache usage. Not
365 * all codecs can do that. You must check the codec capabilities
366 * before
367 * encoding: unused
368 * decoding: set by user.
369 */
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370 void (*draw_horiz_band)(struct AVCodecContext *s,
371 UINT8 **src_ptr, int linesize,
372 int y, int width, int height);
373
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374 /* audio only */
375 int sample_rate; /* samples per sec */
376 int channels;
a96b68b7 377 int sample_fmt; /* sample format, currenly unused */
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378
379 /* the following data should not be initialized */
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380 int frame_size; /* in samples, initialized when calling 'init' */
381 int frame_number; /* audio or video frame number */
382 int real_pict_num; /* returns the real picture number of
383 previous encoded frame */
1e491e29 384
b71901e6 385 /**
1e491e29 386 * 1 -> keyframe, 0-> not (this if for audio only, for video, AVVideoFrame.key_frame should be used)
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387 * encoding: set by lavc (for the outputed bitstream, not the input frame)
388 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
389 */
390 int key_frame;
391
392 /**
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393 * number of frames the decoded output will be delayed relative to
394 * the encoded input
395 * encoding: set by lavc.
396 * decoding: unused
397 */
398 int delay;
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399
400 /* encoding parameters */
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401 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
402 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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403
404 /**
405 * minimum quantizer
406 * encoding: set by user.
407 * decoding: unused
408 */
409 int qmin;
410
411 /**
412 * maximum quantizer
413 * encoding: set by user.
414 * decoding: unused
415 */
416 int qmax;
417
418 /**
419 * maximum quantizer difference etween frames
420 * encoding: set by user.
421 * decoding: unused
422 */
423 int max_qdiff;
424
425 /**
426 * maximum number of b frames between non b frames
427 * note: the output will be delayed by max_b_frames+1 relative to the input
428 * encoding: set by user.
429 * decoding: unused
430 */
431 int max_b_frames;
432
433 /**
434 * qscale factor between ip and b frames
435 * encoding: set by user.
436 * decoding: unused
437 */
438 float b_quant_factor;
439
440 /** obsolete FIXME remove */
441 int rc_strategy;
8b4c7dbc 442 int b_frame_strategy;
9dbcbd92 443
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444 /**
445 * encoding: unused
347ae22e 446 * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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447 */
448 int hurry_up;
2417652e 449
de6d9b64 450 struct AVCodec *codec;
b71901e6 451
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452 void *priv_data;
453
644d98a4 454 /* The following data is for RTP friendly coding */
1f6b6e50 455 /* By now only H.263/H.263+/MPEG4 coder honours this */
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456 int rtp_mode; /* 1 for activate RTP friendly-mode */
457 /* highers numbers represent more error-prone */
458 /* enviroments, by now just "1" exist */
459
460 int rtp_payload_size; /* The size of the RTP payload, the coder will */
461 /* do it's best to deliver a chunk with size */
462 /* below rtp_payload_size, the chunk will start */
463 /* with a start code on some codecs like H.263 */
464 /* This doesn't take account of any particular */
465 /* headers inside the transmited RTP payload */
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466
467
468 /* The RTP callcack: This function is called */
469 /* every time the encoder as a packet to send */
470 /* Depends on the encoder if the data starts */
471 /* with a Start Code (it should) H.263 does */
472 void (*rtp_callback)(void *data, int size, int packet_number);
473
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474 /* statistics, used for 2-pass encoding */
475 int mv_bits;
476 int header_bits;
477 int i_tex_bits;
478 int p_tex_bits;
479 int i_count;
480 int p_count;
481 int skip_count;
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482 int misc_bits;
483
484 /**
485 * number of bits used for the previously encoded frame
486 * encoding: set by lavc
8350df97 487 * decoding: - for audio - bits_per_sample
b71901e6 488 */
098eefe1 489 int frame_bits;
644d98a4 490
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491 /**
492 * private data of the user, can be used to carry app specific stuff
493 * encoding: set by user
494 * decoding: set by user
495 */
496 void *opaque;
497
de6d9b64 498 char codec_name[32];
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499 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
500 enum CodecID codec_id; /* see CODEC_ID_xxx */
de6d9b64 501 unsigned int codec_tag; /* codec tag, only used if unknown codec */
92ba5ffb 502
b71901e6 503 /**
4d2858de 504 * workaround bugs in encoders which sometimes cannot be detected automatically
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505 * encoding: unused
506 * decoding: set by user
507 */
508 int workaround_bugs;
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509#define FF_BUG_AUTODETECT 1 //autodetection
510#define FF_BUG_OLD_MSMPEG4 2
511#define FF_BUG_XVID_ILACE 4
512#define FF_BUG_UMP4 8
513#define FF_BUG_NO_PADDING 16
514#define FF_BUG_AC_VLC 32
03e93d35 515#define FF_BUG_QPEL_CHROMA 64
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516//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
517
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518 /**
519 * encoding: set by user
520 * decoding: unused
521 */
1f6b6e50 522 int luma_elim_threshold;
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523
524 /**
525 * encoding: set by user
526 * decoding: unused
527 */
1f6b6e50 528 int chroma_elim_threshold;
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529
530 /**
531 * strictly follow the std (MPEG4, ...)
532 * encoding: set by user
533 * decoding: unused
534 */
535 int strict_std_compliance;
536
537 /**
538 * qscale offset between ip and b frames
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539 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
540 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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541 * encoding: set by user.
542 * decoding: unused
543 */
544 float b_quant_offset;
545
546 /**
ce3bcaed 547 * error resilience higher values will detect more errors but may missdetect
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548 * some more or less valid parts as errors
549 * encoding: unused
550 * decoding: set by user
551 */
1f6b6e50 552 int error_resilience;
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553#define FF_ER_CAREFULL 1
554#define FF_ER_COMPLIANT 2
555#define FF_ER_AGGRESSIVE 3
556#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 557
6b72ac63 558 /**
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559 * called at the beginning of each frame to get a buffer for it.
560 * if pic.reference is set then the frame will be read later by lavc
b71901e6 561 * encoding: unused
1e491e29 562 * decoding: set by lavc, user can override
b71901e6 563 */
1e491e29 564 int (*get_buffer)(struct AVCodecContext *c, AVVideoFrame *pic);
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565
566 /**
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567 * called to release buffers which where allocated with get_buffer.
568 * a released buffer can be reused in get_buffer()
569 * pic.data[*] must be set to NULL
b71901e6 570 * encoding: unused
1e491e29 571 * decoding: set by lavc, user can override
b71901e6 572 */
1e491e29 573 void (*release_buffer)(struct AVCodecContext *c, AVVideoFrame *pic);
0fd90455 574
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575 /**
576 * is 1 if the decoded stream contains b frames, 0 otherwise
577 * encoding: unused
578 * decoding: set by lavc
579 */
580 int has_b_frames;
b71901e6 581
bc8d1857 582 int block_align; /* used by some WAV based audio codecs */
ce980a95 583
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584 int parse_only; /* decoding only: if true, only parsing is done
585 (function avcodec_parse_frame()). The frame
586 data is returned. Only MPEG codecs support this now. */
ce980a95 587
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588 /**
589 * 0-> h263 quant 1-> mpeg quant
590 * encoding: set by user.
591 * decoding: unused
592 */
593 int mpeg_quant;
ce980a95 594
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595 /**
596 * pass1 encoding statistics output buffer
597 * encoding: set by lavc
598 * decoding: unused
599 */
ce980a95 600 char *stats_out; /* encoding statistics output buffer */
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601
602 /**
603 * pass2 encoding statistics input buffer.
604 * concatenated stuff from stats_out of pass1 should be placed here
605 * encoding: allocated/set/freed by user
606 * decoding: unused
607 */
608 char *stats_in;
609
610 /**
611 * ratecontrol qmin qmax limiting method
612 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
613 * encoding: set by user.
614 * decoding: unused
615 */
ce980a95 616 float rc_qsquish;
b71901e6 617
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618 float rc_qmod_amp;
619 int rc_qmod_freq;
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620
621 /**
622 * ratecontrol override, see RcOverride
623 * encoding: allocated/set/freed by user.
624 * decoding: unused
625 */
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626 RcOverride *rc_override;
627 int rc_override_count;
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628
629 /**
630 * rate control equation
631 * encoding: set by user
632 * decoding: unused
633 */
ce980a95 634 char *rc_eq;
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635
636 /**
637 * maximum bitrate
638 * encoding: set by user.
639 * decoding: unused
640 */
ce980a95 641 int rc_max_rate;
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642
643 /**
644 * minimum bitrate
645 * encoding: set by user.
646 * decoding: unused
647 */
ce980a95 648 int rc_min_rate;
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649
650 /**
651 * decoder bitstream buffer size
652 * encoding: set by user.
653 * decoding: unused
654 */
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655 int rc_buffer_size;
656 float rc_buffer_aggressivity;
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657
658 /**
659 * qscale factor between p and i frames
660 * encoding: set by user.
661 * decoding: unused
662 */
663 float i_quant_factor;
664
665 /**
666 * qscale offset between p and i frames
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667 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
668 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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669 * encoding: set by user.
670 * decoding: unused
671 */
672 float i_quant_offset;
673
674 /**
675 * initial complexity for pass1 ratecontrol
676 * encoding: set by user.
677 * decoding: unused
678 */
ce980a95 679 float rc_initial_cplx;
917e06c8 680
b71901e6 681 /**
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682 * dct algorithm, see FF_DCT_* below
683 * encoding: set by user
684 * decoding: unused
685 */
28db7fce 686 int dct_algo;
c7e07931 687#define FF_DCT_AUTO 0
28db7fce 688#define FF_DCT_FASTINT 1
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689#define FF_DCT_INT 2
690#define FF_DCT_MMX 3
691#define FF_DCT_MLIB 4
05c4072b 692#define FF_DCT_ALTIVEC 5
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693
694 /**
695 * luminance masking (0-> disabled)
696 * encoding: set by user
697 * decoding: unused
698 */
699 float lumi_masking;
700
701 /**
702 * temporary complexity masking (0-> disabled)
703 * encoding: set by user
704 * decoding: unused
705 */
706 float temporal_cplx_masking;
707
708 /**
709 * spatial complexity masking (0-> disabled)
710 * encoding: set by user
711 * decoding: unused
712 */
713 float spatial_cplx_masking;
714
715 /**
716 * p block masking (0-> disabled)
717 * encoding: set by user
718 * decoding: unused
719 */
720 float p_masking;
15415af4 721
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722 /**
723 * darkness masking (0-> disabled)
724 * encoding: set by user
725 * decoding: unused
726 */
727 float dark_masking;
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728
729 /**
730 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
731 * this is used to workaround some encoder bugs
732 * encoding: unused
202ef8b8 733 * decoding: set by user, will be converted to upper case by lavc during init
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734 */
735 int fourcc;
5e746b99 736
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737 /**
738 * idct algorithm, see FF_IDCT_* below
739 * encoding: set by user
740 * decoding: set by user
741 */
742 int idct_algo;
743#define FF_IDCT_AUTO 0
744#define FF_IDCT_INT 1
745#define FF_IDCT_SIMPLE 2
746#define FF_IDCT_SIMPLEMMX 3
747#define FF_IDCT_LIBMPEG2MMX 4
748#define FF_IDCT_PS2 5
749#define FF_IDCT_MLIB 6
750#define FF_IDCT_ARM 7
05c4072b 751#define FF_IDCT_ALTIVEC 8
2ad1516a 752
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753 /**
754 * slice count
755 * encoding: set by lavc
756 * decoding: set by user (or 0)
757 */
758 int slice_count;
759 /**
760 * slice offsets in the frame in bytes
761 * encoding: set/allocated by lavc
762 * decoding: set/allocated by user (or NULL)
763 */
764 int *slice_offset;
765
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766 /**
767 * error concealment flags
768 * encoding: unused
769 * decoding: set by user
770 */
771 int error_concealment;
772#define FF_EC_GUESS_MVS 1
773#define FF_EC_DEBLOCK 2
774
6b72ac63 775 /**
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776 * dsp_mask could be used to disable unwanted
777 * CPU features (i.e. MMX, SSE. ...)
778 */
779 unsigned dsp_mask;
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780
781 /**
782 * bits per sample/pixel from the demuxer (needed for huffyuv)
1e491e29 783 * encoding: set by lavc
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784 * decoding: set by user
785 */
786 int bits_per_sample;
787
788 /**
789 * prediction method (needed for huffyuv)
1e491e29 790 * encoding: set by user
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791 * decoding: unused
792 */
793 int prediction_method;
794#define FF_PRED_LEFT 0
795#define FF_PRED_PLANE 1
796#define FF_PRED_MEDIAN 2
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797
798 /**
799 * aspect ratio. (0 if unknown)
800 * encoding: set by user.
801 * decoding: set by lavc.
802 */
803 float aspect_ratio;
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804
805 /**
806 * the picture in the bitstream
807 * encoding: set by lavc
808 * decoding: set by lavc
809 */
810 AVVideoFrame *coded_picture;
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811
812 /**
813 * debug
814 * encoding: set by user.
815 * decoding: set by user.
816 */
817 int debug;
818#define FF_DEBUG_PICT_INFO 1
819#define FF_DEBUG_RC 2
820#define FF_DEBUG_BITSTREAM 4
821#define FF_DEBUG_MB_TYPE 8
822#define FF_DEBUG_QP 16
823#define FF_DEBUG_MV 32
824#define FF_DEBUG_VIS_MV 64
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825
826 /**
827 * error
828 * encoding: set by lavc if flags&CODEC_FLAG_PSNR
829 * decoding: unused
830 */
831 uint64_t error[4];
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832} AVCodecContext;
833
834typedef struct AVCodec {
18f77016 835 const char *name;
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836 int type;
837 int id;
838 int priv_data_size;
839 int (*init)(AVCodecContext *);
840 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
841 int (*close)(AVCodecContext *);
0fd90455 842 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
de6d9b64 843 UINT8 *buf, int buf_size);
bf89e6b1 844 int capabilities;
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845 struct AVCodec *next;
846} AVCodec;
847
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848/**
849 * four components are given, that's all.
850 * the last component is alpha
851 */
de6d9b64 852typedef struct AVPicture {
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853 UINT8 *data[4];
854 int linesize[4];
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855} AVPicture;
856
857extern AVCodec ac3_encoder;
858extern AVCodec mp2_encoder;
9d36bdc9 859extern AVCodec mp3lame_encoder;
81e0d0b4 860extern AVCodec oggvorbis_encoder;
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861extern AVCodec mpeg1video_encoder;
862extern AVCodec h263_encoder;
863extern AVCodec h263p_encoder;
864extern AVCodec rv10_encoder;
865extern AVCodec mjpeg_encoder;
bf89e6b1 866extern AVCodec mpeg4_encoder;
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867extern AVCodec msmpeg4v1_encoder;
868extern AVCodec msmpeg4v2_encoder;
869extern AVCodec msmpeg4v3_encoder;
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870extern AVCodec wmv1_encoder;
871extern AVCodec wmv2_encoder;
11f18faf 872extern AVCodec huffyuv_encoder;
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873
874extern AVCodec h263_decoder;
bf89e6b1 875extern AVCodec mpeg4_decoder;
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876extern AVCodec msmpeg4v1_decoder;
877extern AVCodec msmpeg4v2_decoder;
878extern AVCodec msmpeg4v3_decoder;
e1a9dbff 879extern AVCodec wmv1_decoder;
0151a6f5 880extern AVCodec wmv2_decoder;
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881extern AVCodec mpeg_decoder;
882extern AVCodec h263i_decoder;
883extern AVCodec rv10_decoder;
be8ffec9 884extern AVCodec svq1_decoder;
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885extern AVCodec dvvideo_decoder;
886extern AVCodec dvaudio_decoder;
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887extern AVCodec wmav1_decoder;
888extern AVCodec wmav2_decoder;
4e66ab3b 889extern AVCodec mjpeg_decoder;
b135d9fb 890extern AVCodec mjpegb_decoder;
4b1f4f23 891extern AVCodec mp2_decoder;
a96b68b7 892extern AVCodec mp3_decoder;
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893extern AVCodec mace3_decoder;
894extern AVCodec mace6_decoder;
11f18faf 895extern AVCodec huffyuv_decoder;
3aca208a 896extern AVCodec oggvorbis_decoder;
de6d9b64 897
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898/* pcm codecs */
899#define PCM_CODEC(id, name) \
900extern AVCodec name ## _decoder; \
f11d3f23 901extern AVCodec name ## _encoder
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902
903PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
904PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
905PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
906PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
907PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
908PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
909PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
910PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
911
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912/* adpcm codecs */
913
914PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
915PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
916PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
917
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918#undef PCM_CODEC
919
920/* dummy raw video codec */
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921extern AVCodec rawvideo_codec;
922
923/* the following codecs use external GPL libs */
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924extern AVCodec ac3_decoder;
925
926/* resample.c */
927
928struct ReSampleContext;
929
930typedef struct ReSampleContext ReSampleContext;
931
932ReSampleContext *audio_resample_init(int output_channels, int input_channels,
933 int output_rate, int input_rate);
934int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
935void audio_resample_close(ReSampleContext *s);
936
937/* YUV420 format is assumed ! */
938
939struct ImgReSampleContext;
940
941typedef struct ImgReSampleContext ImgReSampleContext;
942
943ImgReSampleContext *img_resample_init(int output_width, int output_height,
944 int input_width, int input_height);
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945
946ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
947 int iwidth, int iheight,
948 int topBand, int bottomBand,
949 int leftBand, int rightBand);
950
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951void img_resample(ImgReSampleContext *s,
952 AVPicture *output, AVPicture *input);
953
954void img_resample_close(ImgReSampleContext *s);
955
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956void avpicture_fill(AVPicture *picture, UINT8 *ptr,
957 int pix_fmt, int width, int height);
958int avpicture_get_size(int pix_fmt, int width, int height);
1e491e29 959void avcodec_get_chroma_sub_sample(int fmt, int *h_shift, int *v_shift);
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960
961/* convert among pixel formats */
962int img_convert(AVPicture *dst, int dst_pix_fmt,
963 AVPicture *src, int pix_fmt,
964 int width, int height);
965
966/* deinterlace a picture */
967int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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968 int pix_fmt, int width, int height);
969
970/* external high level API */
971
972extern AVCodec *first_avcodec;
973
156e5023 974/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 975unsigned avcodec_version(void);
8bceb6af 976/* returns LIBAVCODEC_BUILD constant */
51a49663 977unsigned avcodec_build(void);
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978void avcodec_init(void);
979
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980void avcodec_set_bit_exact(void);
981
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982void register_avcodec(AVCodec *format);
983AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 984AVCodec *avcodec_find_encoder_by_name(const char *name);
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985AVCodec *avcodec_find_decoder(enum CodecID id);
986AVCodec *avcodec_find_decoder_by_name(const char *name);
987void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
988
1e491e29 989void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 990AVCodecContext *avcodec_alloc_context(void);
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991AVVideoFrame *avcodec_alloc_picture(void);
992
993int avcodec_default_get_buffer(AVCodecContext *s, AVVideoFrame *pic);
994void avcodec_default_release_buffer(AVCodecContext *s, AVVideoFrame *pic);
995
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996int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
997int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
998 int *frame_size_ptr,
999 UINT8 *buf, int buf_size);
1e491e29 1000int avcodec_decode_video(AVCodecContext *avctx, AVVideoFrame *picture,
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1001 int *got_picture_ptr,
1002 UINT8 *buf, int buf_size);
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1003int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
1004 int *data_size_ptr,
1005 UINT8 *buf, int buf_size);
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1006int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
1007 const short *samples);
1008int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
1e491e29 1009 const AVVideoFrame *pict);
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1010
1011int avcodec_close(AVCodecContext *avctx);
1012
1013void avcodec_register_all(void);
a96b68b7 1014
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1015void avcodec_flush_buffers(AVCodecContext *avctx);
1016
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1017/**
1018 * Interface for 0.5.0 version
1019 *
1020 * do not even think about it's usage for this moment
1021 */
1022
1023typedef struct {
1024 // compressed size used from given memory buffer
1025 int size;
1026 /// I/P/B frame type
1027 int frame_type;
1028} avc_enc_result_t;
1029
1030/**
1031 * Commands
1032 * order can't be changed - once it was defined
1033 */
1034typedef enum {
1035 // general commands
1036 AVC_OPEN_BY_NAME = 0xACA000,
1037 AVC_OPEN_BY_CODEC_ID,
1038 AVC_OPEN_BY_FOURCC,
1039 AVC_CLOSE,
1040
1041 AVC_FLUSH,
1042 // pin - struct { uint8_t* src, uint_t src_size }
1043 // pout - struct { AVPicture* img, consumed_bytes,
1044 AVC_DECODE,
1045 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1046 // pout - uint_t used_from_dest_size
1047 AVC_ENCODE,
1048
1049 // query/get video commands
1050 AVC_GET_VERSION = 0xACB000,
1051 AVC_GET_WIDTH,
1052 AVC_GET_HEIGHT,
1053 AVC_GET_DELAY,
1054 AVC_GET_QUANT_TABLE,
1055 // ...
1056
1057 // query/get audio commands
1058 AVC_GET_FRAME_SIZE = 0xABC000,
1059
1060 // maybe define some simple structure which
1061 // might be passed to the user - but they can't
1062 // contain any codec specific parts and these
1063 // calls are usualy necessary only few times
1064
1065 // set video commands
1066 AVC_SET_WIDTH = 0xACD000,
1067 AVC_SET_HEIGHT,
1068
1069 // set video encoding commands
1070 AVC_SET_FRAME_RATE = 0xACD800,
1071 AVC_SET_QUALITY,
1072 AVC_SET_HURRY_UP,
1073
1074 // set audio commands
1075 AVC_SET_SAMPLE_RATE = 0xACE000,
1076 AVC_SET_CHANNELS,
1077
1078} avc_cmd_t;
1079
1080/**
1081 * \param handle allocated private structure by libavcodec
1082 * for initialization pass NULL - will be returned pout
1083 * user is supposed to know nothing about its structure
1084 * \param cmd type of operation to be performed
1085 * \param pint input parameter
1086 * \param pout output parameter
1087 *
1088 * \returns command status - eventually for query command it might return
1089 * integer resulting value
1090 */
1091int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1092
544eb99c 1093/* memory */
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1094void *av_malloc(unsigned int size);
1095void *av_mallocz(unsigned int size);
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1096void av_free(void *ptr);
1097void __av_freep(void **ptr);
1098#define av_freep(p) __av_freep((void **)(p))
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1099/* for static data only */
1100/* call av_free_static to release all staticaly allocated tables */
1101void av_free_static();
1102void *__av_mallocz_static(void** location, unsigned int size);
1103#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
544eb99c 1104
a96b68b7 1105#endif /* AVCODEC_H */