making configure a shell script not a bash one patch by (Roman Shaposhnick <rvs at...
[libav.git] / libavcodec / avcodec.h
CommitLineData
a96b68b7
FB
1#ifndef AVCODEC_H
2#define AVCODEC_H
3
36df8805
MN
4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
36df8805
MN
7 */
8
9
02d697aa
ZK
10#ifdef __cplusplus
11extern "C" {
12#endif
13
de6d9b64
FB
14#include "common.h"
15
4b1f4f23
J
16#define LIBAVCODEC_VERSION_INT 0x000406
17#define LIBAVCODEC_VERSION "0.4.6"
7004ffb3
MN
18#define LIBAVCODEC_BUILD 4661
19#define LIBAVCODEC_BUILD_STR "4661"
4b1f4f23 20
ce2749d2
AB
21#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
22
de6d9b64
FB
23enum CodecID {
24 CODEC_ID_NONE,
25 CODEC_ID_MPEG1VIDEO,
26 CODEC_ID_H263,
27 CODEC_ID_RV10,
28 CODEC_ID_MP2,
9d36bdc9 29 CODEC_ID_MP3LAME,
81e0d0b4 30 CODEC_ID_VORBIS,
de6d9b64
FB
31 CODEC_ID_AC3,
32 CODEC_ID_MJPEG,
b135d9fb 33 CODEC_ID_MJPEGB,
bf89e6b1 34 CODEC_ID_MPEG4,
de6d9b64 35 CODEC_ID_RAWVIDEO,
84afee34
MN
36 CODEC_ID_MSMPEG4V1,
37 CODEC_ID_MSMPEG4V2,
38 CODEC_ID_MSMPEG4V3,
e1a9dbff 39 CODEC_ID_WMV1,
b50eef3a 40 CODEC_ID_WMV2,
de6d9b64
FB
41 CODEC_ID_H263P,
42 CODEC_ID_H263I,
be8ffec9 43 CODEC_ID_SVQ1,
020fcc94
FB
44 CODEC_ID_DVVIDEO,
45 CODEC_ID_DVAUDIO,
bc8d1857
FB
46 CODEC_ID_WMAV1,
47 CODEC_ID_WMAV2,
3f95e843
FR
48 CODEC_ID_MACE3,
49 CODEC_ID_MACE6,
11f18faf 50 CODEC_ID_HUFFYUV,
f70f7c6d 51 CODEC_ID_CYUV,
a96b68b7
FB
52
53 /* various pcm "codecs" */
54 CODEC_ID_PCM_S16LE,
55 CODEC_ID_PCM_S16BE,
56 CODEC_ID_PCM_U16LE,
57 CODEC_ID_PCM_U16BE,
58 CODEC_ID_PCM_S8,
59 CODEC_ID_PCM_U8,
60 CODEC_ID_PCM_MULAW,
61 CODEC_ID_PCM_ALAW,
0147f198
FR
62
63 /* various adpcm codecs */
64 CODEC_ID_ADPCM_IMA_QT,
65 CODEC_ID_ADPCM_IMA_WAV,
66 CODEC_ID_ADPCM_MS,
de6d9b64
FB
67};
68
69enum CodecType {
4a663d80 70 CODEC_TYPE_UNKNOWN = -1,
de6d9b64
FB
71 CODEC_TYPE_VIDEO,
72 CODEC_TYPE_AUDIO,
73};
74
64863965
MN
75/**
76 * Pixel format.
77 */
de6d9b64
FB
78enum PixelFormat {
79 PIX_FMT_YUV420P,
80 PIX_FMT_YUV422,
64863965
MN
81 PIX_FMT_RGB24, ///< 3 bytes, R is first
82 PIX_FMT_BGR24, ///< 3 bytes, B is first
d9fea0b5
FB
83 PIX_FMT_YUV422P,
84 PIX_FMT_YUV444P,
64863965 85 PIX_FMT_RGBA32, ///< always stored in cpu endianness
e9feea59 86 PIX_FMT_YUV410P,
a32072d0 87 PIX_FMT_YUV411P,
64863965
MN
88 PIX_FMT_RGB565, ///< always stored in cpu endianness
89 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 90 PIX_FMT_GRAY8,
64863965
MN
91 PIX_FMT_MONOWHITE, ///< 0 is white
92 PIX_FMT_MONOBLACK, ///< 0 is black
93 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
dab64ebc 94 PIX_FMT_NB,
de6d9b64
FB
95};
96
a96b68b7
FB
97/* currently unused, may be used if 24/32 bits samples ever supported */
98enum SampleFormat {
64863965 99 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
a96b68b7
FB
100};
101
de6d9b64 102/* in bytes */
bc8d1857 103#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 104
d7425f59
MN
105/**
106 * Required number of zero bytes at the end of the input bitstream for decoding.
107 * to avoid overreading (and possibly segfaulting)
108 */
109#define FF_INPUT_BUFFER_PADDING_SIZE 8
110
e4986da9
J
111/* motion estimation type, EPZS by default */
112enum Motion_Est_ID {
101bea5f 113 ME_ZERO = 1,
e4986da9
J
114 ME_FULL,
115 ME_LOG,
116 ME_PHODS,
117 ME_EPZS,
118 ME_X1
119};
120
ce980a95
MN
121typedef struct RcOverride{
122 int start_frame;
123 int end_frame;
124 int qscale; // if this is 0 then quality_factor will be used instead
125 float quality_factor;
126} RcOverride;
127
101bea5f
J
128/* only for ME compatiblity with old apps */
129extern int motion_estimation_method;
130
e4986da9 131/* ME algos sorted by quality */
bc6caae2
J
132static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
133 ME_X1, ME_EPZS, ME_FULL };
de6d9b64 134
28db7fce 135
4e00e76b 136#define FF_MAX_B_FRAMES 8
9dbcbd92 137
a949d72e
MN
138/* encoding support
139 these flags can be passed in AVCodecContext.flags before initing
140 Note: note not everything is supported yet
141*/
de6d9b64 142
64863965
MN
143#define CODEC_FLAG_HQ 0x0001 ///< brute force MB-type decission mode (slow)
144#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
145#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed
146#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
147#define CODEC_FLAG_GMC 0x0020 ///< use GMC
148#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
9dbcbd92
MN
149/* parent program gurantees that the input for b-frame containing streams is not written to
150 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 151#define CODEC_FLAG_INPUT_PRESERVED 0x0100
64863965
MN
152#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
153#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
154#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
155#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
156#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
157#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
158#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 159 of only at frame boundaries */
64863965
MN
160#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
161#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
162#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay / will fail on b frames
163#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
164#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
165#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
166#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 167/* Fx : Flag for h263+ extra options */
64863965
MN
168#define CODEC_FLAG_H263P_AIC 0x01000000 ///< Advanced intra coding
169#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
21e59552
MN
170/* For advanced prediction mode, we reuse the 4MV flag */
171/* Unsupported options :
172 * Syntax Arithmetic coding (SAC)
173 * Deblocking filter internal loop
174 * Slice structured
175 * Reference Picture Selection
176 * Independant Segment Decoding
177 * Alternative Inter * VLC
178 * Modified Quantization */
179/* /Fx */
bf89e6b1
FB
180/* codec capabilities */
181
64863965
MN
182#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
183#define CODEC_CAP_DR1 0x0002 ///< direct rendering method 1
917e06c8
FB
184/* if 'parse_only' field is true, then avcodec_parse_frame() can be
185 used */
186#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 187#define CODEC_CAP_TRUNCATED 0x0008
bf89e6b1 188
a5dbb247 189#define FRAME_RATE_BASE 10010
de6d9b64 190
492cd3a9 191#define FF_COMMON_FRAME \
1e491e29
MN
192 uint8_t *data[4];\
193 int linesize[4];\
194 /**\
32db2b1d 195 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 196 * this isnt used by lavc unless the default get/release_buffer() is used\
64863965
MN
197 * - encoding: \
198 * - decoding: \
1e491e29
MN
199 */\
200 uint8_t *base[4];\
201 /**\
202 * 1 -> keyframe, 0-> not\
64863965
MN
203 * - encoding: set by lavc\
204 * - decoding: set by lavc\
1e491e29
MN
205 */\
206 int key_frame;\
207\
208 /**\
209 * picture type of the frame, see ?_TYPE below\
64863965
MN
210 * - encoding: set by lavc for coded_picture (and set by user for input)\
211 * - decoding: set by lavc\
1e491e29
MN
212 */\
213 int pict_type;\
214\
215 /**\
216 * presentation timestamp in micro seconds (time when frame should be shown to user)\
217 * if 0 then the frame_rate will be used as reference\
64863965
MN
218 * - encoding: MUST be set by user\
219 * - decoding: set by lavc\
1e491e29
MN
220 */\
221 long long int pts;\
222\
223 /**\
224 * picture number in bitstream order.\
64863965
MN
225 * - encoding: set by\
226 * - decoding: set by lavc\
1e491e29
MN
227 */\
228 int coded_picture_number;\
229 /**\
1e491e29 230 * picture number in display order.\
64863965
MN
231 * - encoding: set by\
232 * - decoding: set by lavc\
1e491e29
MN
233 */\
234 int display_picture_number;\
235\
236 /**\
237 * quality (between 1 (good) and 31 (bad)) \
64863965
MN
238 * - encoding: set by lavc for coded_picture (and set by user for input)\
239 * - decoding: set by lavc\
1e491e29
MN
240 */\
241 float quality; \
242\
243 /**\
244 * buffer age (1->was last buffer and dint change, 2->..., ...).\
245 * set to something large if the buffer has not been used yet \
64863965
MN
246 * - encoding: unused\
247 * - decoding: MUST be set by get_buffer()\
1e491e29
MN
248 */\
249 int age;\
250\
251 /**\
252 * is this picture used as reference\
64863965
MN
253 * - encoding: unused\
254 * - decoding: set by lavc (before get_buffer() call))\
1e491e29
MN
255 */\
256 int reference;\
257\
258 /**\
259 * QP table\
64863965
MN
260 * - encoding: unused\
261 * - decoding: set by lavc\
1e491e29
MN
262 */\
263 int8_t *qscale_table;\
264 /**\
265 * QP store stride\
64863965
MN
266 * - encoding: unused\
267 * - decoding: set by lavc\
1e491e29
MN
268 */\
269 int qstride;\
270\
271 /**\
272 * mbskip_table[mb]>=1 if MB didnt change\
273 * stride= mb_width = (width+15)>>4\
64863965
MN
274 * - encoding: unused\
275 * - decoding: set by lavc\
1e491e29
MN
276 */\
277 uint8_t *mbskip_table;\
278\
279 /**\
280 * for some private data of the user\
64863965
MN
281 * - encoding: unused\
282 * - decoding: set by user\
1e491e29
MN
283 */\
284 void *opaque;\
140cb663
MN
285\
286 /**\
287 * error\
64863965
MN
288 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
289 * - decoding: unused\
140cb663
MN
290 */\
291 uint64_t error[4];\
4e00e76b
MN
292\
293 /**\
294 * type of the buffer (to keep track of who has to dealloc data[*])\
64863965
MN
295 * - encoding: set by the one who allocs it\
296 * - decoding: set by the one who allocs it\
4e00e76b
MN
297 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
298 */\
299 int type;\
2ec23b6d
MN
300 \
301 /**\
302 * when decoding, this signal how much the picture must be delayed.\
303 * extra_delay = repeat_pict / (2*fps)\
64863965
MN
304 * - encoding: unused\
305 * - decoding: set by lavc\
2ec23b6d
MN
306 */\
307 int repeat_pict;
308
4e00e76b
MN
309
310#define FF_BUFFER_TYPE_INTERNAL 1
311#define FF_BUFFER_TYPE_USER 2 // Direct rendering buffers
312#define FF_BUFFER_TYPE_SHARED 4 // input frame for encoding(wont be dealloced)
313
1e491e29 314
140cb663
MN
315#define FF_I_TYPE 1 // Intra
316#define FF_P_TYPE 2 // Predicted
317#define FF_B_TYPE 3 // Bi-dir predicted
318#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
1e491e29 319
492cd3a9
MN
320typedef struct AVFrame {
321 FF_COMMON_FRAME
322} AVFrame;
1e491e29 323
d33c949c
MN
324
325/**
326 * main external api structure.
327 */
de6d9b64 328typedef struct AVCodecContext {
b71901e6 329 /**
64863965
MN
330 * the average bitrate.
331 * - encoding: set by user. unused for constant quantizer encoding
332 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 333 */
de6d9b64 334 int bit_rate;
b71901e6
MN
335
336 /**
64863965 337 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 338 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
64863965
MN
339 * - encoding: set by user. unused for constant quantizer encoding
340 * - decoding: unused
b71901e6
MN
341 */
342 int bit_rate_tolerance;
343
344 /**
64863965
MN
345 * CODEC_FLAG_*.
346 * - encoding: set by user.
347 * - decoding: set by user.
b71901e6 348 */
de6d9b64 349 int flags;
b71901e6
MN
350
351 /**
352 * some codecs needs additionnal format info. It is stored here
64863965
MN
353 * - encoding: set by user.
354 * - decoding: set by lavc. (FIXME is this ok?)
b71901e6
MN
355 */
356 int sub_id;
357
358 /**
64863965
MN
359 * motion estimation algorithm used for video coding.
360 * - encoding: MUST be set by user.
361 * - decoding: unused
b71901e6
MN
362 */
363 int me_method;
364
365 /**
64863965 366 * some codecs need / can use extra-data like huffman tables.
b71901e6
MN
367 * mjpeg: huffman tables
368 * rv10: additional flags
b704e742 369 * mpeg4: global headers (they can be in the bitstream or here)
64863965
MN
370 * - encoding: set/allocated/freed by lavc.
371 * - decoding: set/allocated/freed by user.
b71901e6 372 */
e84c31dc
A
373 void *extradata;
374 int extradata_size;
375
de6d9b64 376 /* video only */
b71901e6 377 /**
64863965 378 * frames per sec multiplied by FRAME_RATE_BASE.
b71901e6
MN
379 * for variable fps this is the precission, so if the timestamps
380 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
64863965
MN
381 * - encoding: MUST be set by user
382 * - decoding: set by lavc. 0 or the frame_rate if available
b71901e6
MN
383 */
384 int frame_rate;
385
386 /**
64863965
MN
387 * width / height.
388 * - encoding: MUST be set by user.
389 * - decoding: set by user, some codecs might override / change it during playback
b71901e6 390 */
de6d9b64 391 int width, height;
b71901e6 392
2efe097a
MN
393#define FF_ASPECT_SQUARE 1
394#define FF_ASPECT_4_3_625 2
395#define FF_ASPECT_4_3_525 3
396#define FF_ASPECT_16_9_625 4
397#define FF_ASPECT_16_9_525 5
e769f053 398#define FF_ASPECT_EXTENDED 15
b71901e6
MN
399
400 /**
64863965
MN
401 * the number of pictures in a group of pitures, or 0 for intra_only.
402 * - encoding: set by user.
403 * - decoding: unused
b71901e6
MN
404 */
405 int gop_size;
406
407 /**
64863965
MN
408 * pixel format, see PIX_FMT_xxx.
409 * - encoding: unused
410 * - decoding: set by lavc.
b71901e6
MN
411 */
412 enum PixelFormat pix_fmt;
bdfcbbed
MK
413
414 /**
415 * Frame rate emulation. If not zero lower layer (i.e. format handler)
416 * has to read frames at native frame rate.
417 * - encoding: set by user.
418 * - decoding: unused.
419 */
420 int rate_emu;
421
b71901e6
MN
422 /**
423 * if non NULL, 'draw_horiz_band' is called by the libavcodec
424 * decoder to draw an horizontal band. It improve cache usage. Not
425 * all codecs can do that. You must check the codec capabilities
426 * before
64863965
MN
427 * - encoding: unused
428 * - decoding: set by user.
b71901e6 429 */
bf89e6b1 430 void (*draw_horiz_band)(struct AVCodecContext *s,
0c1a9eda 431 uint8_t **src_ptr, int linesize,
bf89e6b1
FB
432 int y, int width, int height);
433
de6d9b64 434 /* audio only */
64863965 435 int sample_rate; ///< samples per sec
de6d9b64 436 int channels;
64863965 437 int sample_fmt; ///< sample format, currenly unused
de6d9b64
FB
438
439 /* the following data should not be initialized */
64863965
MN
440 int frame_size; ///< in samples, initialized when calling 'init'
441 int frame_number; ///< audio or video frame number
442 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 443
b71901e6 444 /**
b71901e6 445 * number of frames the decoded output will be delayed relative to
64863965
MN
446 * the encoded input.
447 * - encoding: set by lavc.
448 * - decoding: unused
b71901e6
MN
449 */
450 int delay;
1ff662cc 451
64863965
MN
452 /* - encoding parameters */
453 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
454 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
b71901e6
MN
455
456 /**
64863965
MN
457 * minimum quantizer.
458 * - encoding: set by user.
459 * - decoding: unused
b71901e6
MN
460 */
461 int qmin;
462
463 /**
64863965
MN
464 * maximum quantizer.
465 * - encoding: set by user.
466 * - decoding: unused
b71901e6
MN
467 */
468 int qmax;
469
470 /**
64863965
MN
471 * maximum quantizer difference etween frames.
472 * - encoding: set by user.
473 * - decoding: unused
b71901e6
MN
474 */
475 int max_qdiff;
476
477 /**
64863965 478 * maximum number of b frames between non b frames.
b71901e6 479 * note: the output will be delayed by max_b_frames+1 relative to the input
64863965
MN
480 * - encoding: set by user.
481 * - decoding: unused
b71901e6
MN
482 */
483 int max_b_frames;
484
485 /**
64863965
MN
486 * qscale factor between ip and b frames.
487 * - encoding: set by user.
488 * - decoding: unused
b71901e6
MN
489 */
490 float b_quant_factor;
491
492 /** obsolete FIXME remove */
493 int rc_strategy;
8b4c7dbc 494 int b_frame_strategy;
9dbcbd92 495
b71901e6 496 /**
64863965
MN
497 * hurry up amount.
498 * - encoding: unused
499 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
b71901e6
MN
500 */
501 int hurry_up;
2417652e 502
de6d9b64 503 struct AVCodec *codec;
b71901e6 504
de6d9b64
FB
505 void *priv_data;
506
644d98a4 507 /* The following data is for RTP friendly coding */
1f6b6e50 508 /* By now only H.263/H.263+/MPEG4 coder honours this */
644d98a4
J
509 int rtp_mode; /* 1 for activate RTP friendly-mode */
510 /* highers numbers represent more error-prone */
511 /* enviroments, by now just "1" exist */
512
513 int rtp_payload_size; /* The size of the RTP payload, the coder will */
514 /* do it's best to deliver a chunk with size */
515 /* below rtp_payload_size, the chunk will start */
516 /* with a start code on some codecs like H.263 */
517 /* This doesn't take account of any particular */
518 /* headers inside the transmited RTP payload */
81401c1f
J
519
520
521 /* The RTP callcack: This function is called */
522 /* every time the encoder as a packet to send */
523 /* Depends on the encoder if the data starts */
524 /* with a Start Code (it should) H.263 does */
525 void (*rtp_callback)(void *data, int size, int packet_number);
526
098eefe1
MN
527 /* statistics, used for 2-pass encoding */
528 int mv_bits;
529 int header_bits;
530 int i_tex_bits;
531 int p_tex_bits;
532 int i_count;
533 int p_count;
534 int skip_count;
b71901e6
MN
535 int misc_bits;
536
537 /**
64863965
MN
538 * number of bits used for the previously encoded frame.
539 * - encoding: set by lavc
7004ffb3 540 * - decoding: unused
b71901e6 541 */
098eefe1 542 int frame_bits;
7004ffb3 543
b71901e6 544 /**
64863965
MN
545 * private data of the user, can be used to carry app specific stuff.
546 * - encoding: set by user
547 * - decoding: set by user
b71901e6
MN
548 */
549 void *opaque;
550
de6d9b64 551 char codec_name[32];
4a663d80
PG
552 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
553 enum CodecID codec_id; /* see CODEC_ID_xxx */
7004ffb3
MN
554
555 /**
556 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
557 * this is used to workaround some encoder bugs
558 * - encoding: unused
559 * - decoding: set by user, will be converted to upper case by lavc during init
560 */
561 unsigned int codec_tag;
92ba5ffb 562
b71901e6 563 /**
64863965
MN
564 * workaround bugs in encoders which sometimes cannot be detected automatically.
565 * - encoding: unused
566 * - decoding: set by user
b71901e6
MN
567 */
568 int workaround_bugs;
64863965 569#define FF_BUG_AUTODETECT 1 ///< autodetection
4d2858de
MN
570#define FF_BUG_OLD_MSMPEG4 2
571#define FF_BUG_XVID_ILACE 4
572#define FF_BUG_UMP4 8
573#define FF_BUG_NO_PADDING 16
574#define FF_BUG_AC_VLC 32
03e93d35 575#define FF_BUG_QPEL_CHROMA 64
db794953 576#define FF_BUG_STD_QPEL 128
36df8805 577#define FF_BUG_QPEL_CHROMA2 256
c40c3482 578#define FF_BUG_DIRECT_BLOCKSIZE 512
4d2858de
MN
579//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
580
b71901e6 581 /**
64863965
MN
582 * luma single coeff elimination threshold.
583 * - encoding: set by user
584 * - decoding: unused
b71901e6 585 */
1f6b6e50 586 int luma_elim_threshold;
b71901e6
MN
587
588 /**
64863965
MN
589 * chroma single coeff elimination threshold.
590 * - encoding: set by user
591 * - decoding: unused
b71901e6 592 */
1f6b6e50 593 int chroma_elim_threshold;
b71901e6
MN
594
595 /**
64863965
MN
596 * strictly follow the std (MPEG4, ...).
597 * - encoding: set by user
598 * - decoding: unused
b71901e6
MN
599 */
600 int strict_std_compliance;
601
602 /**
64863965 603 * qscale offset between ip and b frames.
b3a391e8
MN
604 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
605 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
606 * - encoding: set by user.
607 * - decoding: unused
b71901e6
MN
608 */
609 float b_quant_offset;
610
611 /**
ce3bcaed 612 * error resilience higher values will detect more errors but may missdetect
64863965
MN
613 * some more or less valid parts as errors.
614 * - encoding: unused
615 * - decoding: set by user
b71901e6 616 */
1f6b6e50 617 int error_resilience;
ce3bcaed
MN
618#define FF_ER_CAREFULL 1
619#define FF_ER_COMPLIANT 2
620#define FF_ER_AGGRESSIVE 3
621#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 622
6b72ac63 623 /**
1e491e29
MN
624 * called at the beginning of each frame to get a buffer for it.
625 * if pic.reference is set then the frame will be read later by lavc
64863965
MN
626 * - encoding: unused
627 * - decoding: set by lavc, user can override
b71901e6 628 */
492cd3a9 629 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
b71901e6
MN
630
631 /**
1e491e29
MN
632 * called to release buffers which where allocated with get_buffer.
633 * a released buffer can be reused in get_buffer()
634 * pic.data[*] must be set to NULL
64863965
MN
635 * - encoding: unused
636 * - decoding: set by lavc, user can override
b71901e6 637 */
492cd3a9 638 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 639
b71901e6 640 /**
64863965
MN
641 * is 1 if the decoded stream contains b frames, 0 otherwise.
642 * - encoding: unused
643 * - decoding: set by lavc
b71901e6
MN
644 */
645 int has_b_frames;
b71901e6 646
64863965 647 int block_align; ///< used by some WAV based audio codecs
ce980a95 648
64863965 649 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
650 (function avcodec_parse_frame()). The frame
651 data is returned. Only MPEG codecs support this now. */
ce980a95 652
b71901e6 653 /**
64863965
MN
654 * 0-> h263 quant 1-> mpeg quant.
655 * - encoding: set by user.
656 * - decoding: unused
b71901e6
MN
657 */
658 int mpeg_quant;
ce980a95 659
b71901e6 660 /**
64863965
MN
661 * pass1 encoding statistics output buffer.
662 * - encoding: set by lavc
663 * - decoding: unused
b71901e6 664 */
64863965 665 char *stats_out;
b71901e6
MN
666
667 /**
668 * pass2 encoding statistics input buffer.
669 * concatenated stuff from stats_out of pass1 should be placed here
64863965
MN
670 * - encoding: allocated/set/freed by user
671 * - decoding: unused
b71901e6
MN
672 */
673 char *stats_in;
674
675 /**
64863965 676 * ratecontrol qmin qmax limiting method.
b71901e6 677 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
MN
678 * - encoding: set by user.
679 * - decoding: unused
b71901e6 680 */
ce980a95 681 float rc_qsquish;
b71901e6 682
ce980a95
MN
683 float rc_qmod_amp;
684 int rc_qmod_freq;
b71901e6
MN
685
686 /**
64863965
MN
687 * ratecontrol override, see RcOverride.
688 * - encoding: allocated/set/freed by user.
689 * - decoding: unused
b71901e6 690 */
ce980a95
MN
691 RcOverride *rc_override;
692 int rc_override_count;
b71901e6
MN
693
694 /**
64863965
MN
695 * rate control equation.
696 * - encoding: set by user
697 * - decoding: unused
b71901e6 698 */
ce980a95 699 char *rc_eq;
b71901e6
MN
700
701 /**
64863965
MN
702 * maximum bitrate.
703 * - encoding: set by user.
704 * - decoding: unused
b71901e6 705 */
ce980a95 706 int rc_max_rate;
b71901e6
MN
707
708 /**
64863965
MN
709 * minimum bitrate.
710 * - encoding: set by user.
711 * - decoding: unused
b71901e6 712 */
ce980a95 713 int rc_min_rate;
b71901e6
MN
714
715 /**
64863965
MN
716 * decoder bitstream buffer size.
717 * - encoding: set by user.
718 * - decoding: unused
b71901e6 719 */
ce980a95
MN
720 int rc_buffer_size;
721 float rc_buffer_aggressivity;
b71901e6
MN
722
723 /**
64863965
MN
724 * qscale factor between p and i frames.
725 * - encoding: set by user.
726 * - decoding: unused
b71901e6
MN
727 */
728 float i_quant_factor;
729
730 /**
64863965 731 * qscale offset between p and i frames.
b3a391e8
MN
732 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
733 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
734 * - encoding: set by user.
735 * - decoding: unused
b71901e6
MN
736 */
737 float i_quant_offset;
738
739 /**
64863965
MN
740 * initial complexity for pass1 ratecontrol.
741 * - encoding: set by user.
742 * - decoding: unused
b71901e6 743 */
ce980a95 744 float rc_initial_cplx;
917e06c8 745
b71901e6 746 /**
64863965
MN
747 * dct algorithm, see FF_DCT_* below.
748 * - encoding: set by user
749 * - decoding: unused
b71901e6 750 */
28db7fce 751 int dct_algo;
c7e07931 752#define FF_DCT_AUTO 0
28db7fce 753#define FF_DCT_FASTINT 1
c7e07931
MO
754#define FF_DCT_INT 2
755#define FF_DCT_MMX 3
756#define FF_DCT_MLIB 4
05c4072b 757#define FF_DCT_ALTIVEC 5
c5d309f2
MN
758
759 /**
64863965
MN
760 * luminance masking (0-> disabled).
761 * - encoding: set by user
762 * - decoding: unused
c5d309f2
MN
763 */
764 float lumi_masking;
765
766 /**
64863965
MN
767 * temporary complexity masking (0-> disabled).
768 * - encoding: set by user
769 * - decoding: unused
c5d309f2
MN
770 */
771 float temporal_cplx_masking;
772
773 /**
64863965
MN
774 * spatial complexity masking (0-> disabled).
775 * - encoding: set by user
776 * - decoding: unused
c5d309f2
MN
777 */
778 float spatial_cplx_masking;
779
780 /**
64863965
MN
781 * p block masking (0-> disabled).
782 * - encoding: set by user
783 * - decoding: unused
c5d309f2
MN
784 */
785 float p_masking;
15415af4 786
5e746b99 787 /**
64863965
MN
788 * darkness masking (0-> disabled).
789 * - encoding: set by user
790 * - decoding: unused
5e746b99
MN
791 */
792 float dark_masking;
0c2dd16e
MN
793
794 /**
64863965
MN
795 * idct algorithm, see FF_IDCT_* below.
796 * - encoding: set by user
797 * - decoding: set by user
2ad1516a
MN
798 */
799 int idct_algo;
800#define FF_IDCT_AUTO 0
801#define FF_IDCT_INT 1
802#define FF_IDCT_SIMPLE 2
803#define FF_IDCT_SIMPLEMMX 3
804#define FF_IDCT_LIBMPEG2MMX 4
805#define FF_IDCT_PS2 5
806#define FF_IDCT_MLIB 6
807#define FF_IDCT_ARM 7
05c4072b 808#define FF_IDCT_ALTIVEC 8
2ad1516a 809
144f0625 810 /**
64863965
MN
811 * slice count.
812 * - encoding: set by lavc
813 * - decoding: set by user (or 0)
144f0625
MN
814 */
815 int slice_count;
816 /**
64863965
MN
817 * slice offsets in the frame in bytes.
818 * - encoding: set/allocated by lavc
819 * - decoding: set/allocated by user (or NULL)
144f0625
MN
820 */
821 int *slice_offset;
822
4d2858de 823 /**
64863965
MN
824 * error concealment flags.
825 * - encoding: unused
826 * - decoding: set by user
4d2858de
MN
827 */
828 int error_concealment;
829#define FF_EC_GUESS_MVS 1
830#define FF_EC_DEBLOCK 2
831
6b72ac63 832 /**
bec89a84 833 * dsp_mask could be add used to disable unwanted CPU features
8350df97 834 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
835 *
836 * with FORCE flag you may instead enable given CPU features
837 * (Dangerous: usable in case of misdetection, improper usage however will
838 * result into program crash)
839 */
840 unsigned dsp_mask;
841#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
842 /* lower 16 bits - CPU features */
843#ifdef HAVE_MMX
844#define FF_MM_MMX 0x0001 /* standard MMX */
845#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
846#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
847#define FF_MM_SSE 0x0008 /* SSE functions */
848#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
849#endif /* HAVE_MMX */
11f18faf
MN
850
851 /**
64863965
MN
852 * bits per sample/pixel from the demuxer (needed for huffyuv).
853 * - encoding: set by lavc
854 * - decoding: set by user
11f18faf
MN
855 */
856 int bits_per_sample;
857
858 /**
64863965
MN
859 * prediction method (needed for huffyuv).
860 * - encoding: set by user
861 * - decoding: unused
11f18faf
MN
862 */
863 int prediction_method;
864#define FF_PRED_LEFT 0
865#define FF_PRED_PLANE 1
866#define FF_PRED_MEDIAN 2
5d3cea3a
MN
867
868 /**
64863965
MN
869 * aspect ratio (0 if unknown).
870 * - encoding: set by user.
871 * - decoding: set by lavc.
5d3cea3a
MN
872 */
873 float aspect_ratio;
1e491e29
MN
874
875 /**
64863965
MN
876 * the picture in the bitstream.
877 * - encoding: set by lavc
878 * - decoding: set by lavc
1e491e29 879 */
492cd3a9 880 AVFrame *coded_frame;
c8c437bc
MN
881
882 /**
64863965
MN
883 * debug.
884 * - encoding: set by user.
885 * - decoding: set by user.
c8c437bc
MN
886 */
887 int debug;
888#define FF_DEBUG_PICT_INFO 1
889#define FF_DEBUG_RC 2
890#define FF_DEBUG_BITSTREAM 4
891#define FF_DEBUG_MB_TYPE 8
892#define FF_DEBUG_QP 16
893#define FF_DEBUG_MV 32
41773b73
MN
894#define FF_DEBUG_VIS_MV 0x00000040
895#define FF_DEBUG_SKIP 0x00000080
896#define FF_DEBUG_STARTCODE 0x00000100
897#define FF_DEBUG_PTS 0x00000200
140cb663
MN
898
899 /**
64863965
MN
900 * error.
901 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
902 * - decoding: unused
140cb663
MN
903 */
904 uint64_t error[4];
17a70fde
MN
905
906 /**
64863965
MN
907 * minimum MB quantizer.
908 * - encoding: set by user.
909 * - decoding: unused
17a70fde
MN
910 */
911 int mb_qmin;
912
913 /**
64863965
MN
914 * maximum MB quantizer.
915 * - encoding: set by user.
916 * - decoding: unused
17a70fde
MN
917 */
918 int mb_qmax;
1457ab52
MN
919
920 /**
64863965
MN
921 * motion estimation compare function.
922 * - encoding: set by user.
923 * - decoding: unused
1457ab52
MN
924 */
925 int me_cmp;
926 /**
64863965
MN
927 * subpixel motion estimation compare function.
928 * - encoding: set by user.
929 * - decoding: unused
1457ab52
MN
930 */
931 int me_sub_cmp;
932 /**
64863965
MN
933 * macroblock compare function (not supported yet).
934 * - encoding: set by user.
935 * - decoding: unused
1457ab52
MN
936 */
937 int mb_cmp;
938#define FF_CMP_SAD 0
939#define FF_CMP_SSE 1
940#define FF_CMP_SATD 2
941#define FF_CMP_DCT 3
942#define FF_CMP_PSNR 4
943#define FF_CMP_BIT 5
944#define FF_CMP_RD 6
945#define FF_CMP_ZERO 7
946#define FF_CMP_CHROMA 256
947
948 /**
64863965
MN
949 * ME diamond size & shape.
950 * - encoding: set by user.
951 * - decoding: unused
1457ab52
MN
952 */
953 int dia_size;
b07a5980
MN
954
955 /**
64863965
MN
956 * amount of previous MV predictors (2a+1 x 2a+1 square).
957 * - encoding: set by user.
958 * - decoding: unused
b07a5980
MN
959 */
960 int last_predictor_count;
70ac76c0 961
f5fb6b34 962 /**
64863965
MN
963 * pre pass for motion estimation.
964 * - encoding: set by user.
965 * - decoding: unused
f5fb6b34
MN
966 */
967 int pre_me;
b07a5980 968
70ac76c0 969 /**
64863965
MN
970 * motion estimation pre pass compare function.
971 * - encoding: set by user.
972 * - decoding: unused
70ac76c0
MN
973 */
974 int me_pre_cmp;
826f429a 975
70ac76c0 976 /**
64863965
MN
977 * ME pre pass diamond size & shape.
978 * - encoding: set by user.
979 * - decoding: unused
70ac76c0
MN
980 */
981 int pre_dia_size;
982
826f429a 983 /**
64863965
MN
984 * subpel ME quality.
985 * - encoding: set by user.
986 * - decoding: unused
826f429a
MN
987 */
988 int me_subpel_quality;
989
a33c7159 990 /**
64863965 991 * callback to negotiate the pixelFormat.
a33c7159
MN
992 * @param fmt is the list of formats which are supported by the codec,
993 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
994 * the first is allways the native one
995 * @return the choosen format
64863965
MN
996 * - encoding: unused
997 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159
MN
998 */
999 enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
e2f9490e
FB
1000
1001 /**
1002 * DTG active format information (additionnal aspect ratio
1003 * information only used in DVB MPEG2 transport streams). 0 if
1004 * not set.
1005 *
64863965
MN
1006 * - encoding: unused.
1007 * - decoding: set by decoder
e2f9490e
FB
1008 */
1009 int dtg_active_format;
1010#define FF_DTG_AFD_SAME 8
1011#define FF_DTG_AFD_4_3 9
1012#define FF_DTG_AFD_16_9 10
1013#define FF_DTG_AFD_14_9 11
1014#define FF_DTG_AFD_4_3_SP_14_9 13
1015#define FF_DTG_AFD_16_9_SP_14_9 14
1016#define FF_DTG_AFD_SP_4_3 15
1017
ebbcdc9a
MN
1018 int me_range;
1019 /**
1020 * Maximum motion estimation search range in subpel units.
1021 * if 0 then no limit
1022 *
64863965
MN
1023 * - encoding: set by user.
1024 * - decoding: unused.
ebbcdc9a
MN
1025 */
1026
de6d9b64
FB
1027} AVCodecContext;
1028
97d96aaa 1029
64863965
MN
1030/**
1031 * AVOption.
1032 */
97d96aaa
ZK
1033typedef struct AVOption {
1034 /** options' name */
1035 const char *name; /* if name is NULL, it indicates a link to next */
bec89a84
ZK
1036 /** short English text help or const struct AVOption* subpointer */
1037 const char *help; // const struct AVOption* sub;
97d96aaa
ZK
1038 /** offset to context structure where the parsed value should be stored */
1039 int offset;
1040 /** options' type */
1041 int type;
64863965
MN
1042#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1043#define FF_OPT_TYPE_DOUBLE 2 ///< double
1044#define FF_OPT_TYPE_INT 3 ///< integer
1045#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1046#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1047//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1048#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1049#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1050 /** min value (min == max -> no limits) */
1051 double min;
1052 /** maximum value for double/int */
1053 double max;
1054 /** default boo [0,1]l/double/int value */
1055 double defval;
1056 /**
1057 * default string value (with optional semicolon delimited extra option-list
1058 * i.e. option1;option2;option3
1059 * defval might select other then first argument as default
1060 */
1061 const char *defstr;
97d96aaa
ZK
1062#define FF_OPT_MAX_DEPTH 10
1063} AVOption;
1064
64863965 1065/**
bec89a84
ZK
1066 * Parse option(s) and sets fields in passed structure
1067 * @param strct structure where the parsed results will be written
1068 * @param list list with AVOptions
1069 * @param opts string with options for parsing
1070 */
1071int avoption_parse(void* strct, const AVOption* list, const char* opts);
1072
1073
1074/**
64863965
MN
1075 * AVCodec.
1076 */
de6d9b64 1077typedef struct AVCodec {
18f77016 1078 const char *name;
de6d9b64
FB
1079 int type;
1080 int id;
1081 int priv_data_size;
1082 int (*init)(AVCodecContext *);
0c1a9eda 1083 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1084 int (*close)(AVCodecContext *);
0fd90455 1085 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1086 uint8_t *buf, int buf_size);
bf89e6b1 1087 int capabilities;
97d96aaa 1088 const AVOption *options;
de6d9b64
FB
1089 struct AVCodec *next;
1090} AVCodec;
1091
97d96aaa 1092/**
d7425f59
MN
1093 * four components are given, that's all.
1094 * the last component is alpha
1095 */
de6d9b64 1096typedef struct AVPicture {
0c1a9eda 1097 uint8_t *data[4];
d7425f59 1098 int linesize[4];
de6d9b64
FB
1099} AVPicture;
1100
1101extern AVCodec ac3_encoder;
1102extern AVCodec mp2_encoder;
9d36bdc9 1103extern AVCodec mp3lame_encoder;
81e0d0b4 1104extern AVCodec oggvorbis_encoder;
de6d9b64
FB
1105extern AVCodec mpeg1video_encoder;
1106extern AVCodec h263_encoder;
1107extern AVCodec h263p_encoder;
1108extern AVCodec rv10_encoder;
1109extern AVCodec mjpeg_encoder;
bf89e6b1 1110extern AVCodec mpeg4_encoder;
84afee34
MN
1111extern AVCodec msmpeg4v1_encoder;
1112extern AVCodec msmpeg4v2_encoder;
1113extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1114extern AVCodec wmv1_encoder;
1115extern AVCodec wmv2_encoder;
11f18faf 1116extern AVCodec huffyuv_encoder;
de6d9b64
FB
1117
1118extern AVCodec h263_decoder;
bf89e6b1 1119extern AVCodec mpeg4_decoder;
84afee34
MN
1120extern AVCodec msmpeg4v1_decoder;
1121extern AVCodec msmpeg4v2_decoder;
1122extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1123extern AVCodec wmv1_decoder;
0151a6f5 1124extern AVCodec wmv2_decoder;
de6d9b64
FB
1125extern AVCodec mpeg_decoder;
1126extern AVCodec h263i_decoder;
1127extern AVCodec rv10_decoder;
be8ffec9 1128extern AVCodec svq1_decoder;
020fcc94
FB
1129extern AVCodec dvvideo_decoder;
1130extern AVCodec dvaudio_decoder;
bc8d1857
FB
1131extern AVCodec wmav1_decoder;
1132extern AVCodec wmav2_decoder;
4e66ab3b 1133extern AVCodec mjpeg_decoder;
b135d9fb 1134extern AVCodec mjpegb_decoder;
4b1f4f23 1135extern AVCodec mp2_decoder;
a96b68b7 1136extern AVCodec mp3_decoder;
3f95e843
FR
1137extern AVCodec mace3_decoder;
1138extern AVCodec mace6_decoder;
11f18faf 1139extern AVCodec huffyuv_decoder;
3aca208a 1140extern AVCodec oggvorbis_decoder;
f70f7c6d 1141extern AVCodec cyuv_decoder;
de6d9b64 1142
a96b68b7
FB
1143/* pcm codecs */
1144#define PCM_CODEC(id, name) \
1145extern AVCodec name ## _decoder; \
f11d3f23 1146extern AVCodec name ## _encoder
a96b68b7
FB
1147
1148PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1149PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1150PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1151PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1152PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1153PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1154PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1155PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1156
0147f198
FR
1157/* adpcm codecs */
1158
1159PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1160PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1161PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1162
a96b68b7
FB
1163#undef PCM_CODEC
1164
1165/* dummy raw video codec */
de6d9b64
FB
1166extern AVCodec rawvideo_codec;
1167
1168/* the following codecs use external GPL libs */
de6d9b64
FB
1169extern AVCodec ac3_decoder;
1170
1171/* resample.c */
1172
1173struct ReSampleContext;
1174
1175typedef struct ReSampleContext ReSampleContext;
1176
1177ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1178 int output_rate, int input_rate);
1179int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1180void audio_resample_close(ReSampleContext *s);
1181
1182/* YUV420 format is assumed ! */
1183
1184struct ImgReSampleContext;
1185
1186typedef struct ImgReSampleContext ImgReSampleContext;
1187
1188ImgReSampleContext *img_resample_init(int output_width, int output_height,
1189 int input_width, int input_height);
ab6d194a
MN
1190
1191ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1192 int iwidth, int iheight,
1193 int topBand, int bottomBand,
1194 int leftBand, int rightBand);
1195
de6d9b64
FB
1196void img_resample(ImgReSampleContext *s,
1197 AVPicture *output, AVPicture *input);
1198
1199void img_resample_close(ImgReSampleContext *s);
1200
0c1a9eda 1201int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1202 int pix_fmt, int width, int height);
219b06c6 1203int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
1204void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1205const char *avcodec_get_pix_fmt_name(int pix_fmt);
219b06c6
FB
1206
1207/* convert among pixel formats */
1208int img_convert(AVPicture *dst, int dst_pix_fmt,
1209 AVPicture *src, int pix_fmt,
1210 int width, int height);
1211
1212/* deinterlace a picture */
1213int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
de6d9b64
FB
1214 int pix_fmt, int width, int height);
1215
1216/* external high level API */
1217
1218extern AVCodec *first_avcodec;
1219
156e5023 1220/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1221unsigned avcodec_version(void);
8bceb6af 1222/* returns LIBAVCODEC_BUILD constant */
51a49663 1223unsigned avcodec_build(void);
de6d9b64
FB
1224void avcodec_init(void);
1225
1226void register_avcodec(AVCodec *format);
1227AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1228AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
1229AVCodec *avcodec_find_decoder(enum CodecID id);
1230AVCodec *avcodec_find_decoder_by_name(const char *name);
1231void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1232
1e491e29 1233void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1234AVCodecContext *avcodec_alloc_context(void);
492cd3a9 1235AVFrame *avcodec_alloc_frame(void);
1e491e29 1236
492cd3a9
MN
1237int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1238void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1e491e29 1239
de6d9b64 1240int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
0c1a9eda 1241int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 1242 int *frame_size_ptr,
0c1a9eda 1243 uint8_t *buf, int buf_size);
492cd3a9 1244int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 1245 int *got_picture_ptr,
0c1a9eda
ZK
1246 uint8_t *buf, int buf_size);
1247int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 1248 int *data_size_ptr,
0c1a9eda
ZK
1249 uint8_t *buf, int buf_size);
1250int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 1251 const short *samples);
0c1a9eda 1252int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 1253 const AVFrame *pict);
de6d9b64
FB
1254
1255int avcodec_close(AVCodecContext *avctx);
1256
1257void avcodec_register_all(void);
a96b68b7 1258
1c2a8c7f
MN
1259void avcodec_flush_buffers(AVCodecContext *avctx);
1260
628d601b 1261
628d601b 1262
e8f14793
ZK
1263/**
1264 * Interface for 0.5.0 version
1265 *
1266 * do not even think about it's usage for this moment
1267 */
1268
1269typedef struct {
64863965 1270 /// compressed size used from given memory buffer
e8f14793
ZK
1271 int size;
1272 /// I/P/B frame type
1273 int frame_type;
1274} avc_enc_result_t;
1275
1276/**
1277 * Commands
1278 * order can't be changed - once it was defined
1279 */
1280typedef enum {
1281 // general commands
1282 AVC_OPEN_BY_NAME = 0xACA000,
1283 AVC_OPEN_BY_CODEC_ID,
1284 AVC_OPEN_BY_FOURCC,
1285 AVC_CLOSE,
1286
1287 AVC_FLUSH,
1288 // pin - struct { uint8_t* src, uint_t src_size }
1289 // pout - struct { AVPicture* img, consumed_bytes,
1290 AVC_DECODE,
1291 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1292 // pout - uint_t used_from_dest_size
1293 AVC_ENCODE,
1294
1295 // query/get video commands
1296 AVC_GET_VERSION = 0xACB000,
1297 AVC_GET_WIDTH,
1298 AVC_GET_HEIGHT,
1299 AVC_GET_DELAY,
1300 AVC_GET_QUANT_TABLE,
1301 // ...
1302
1303 // query/get audio commands
1304 AVC_GET_FRAME_SIZE = 0xABC000,
1305
1306 // maybe define some simple structure which
1307 // might be passed to the user - but they can't
1308 // contain any codec specific parts and these
1309 // calls are usualy necessary only few times
1310
1311 // set video commands
1312 AVC_SET_WIDTH = 0xACD000,
1313 AVC_SET_HEIGHT,
1314
1315 // set video encoding commands
1316 AVC_SET_FRAME_RATE = 0xACD800,
1317 AVC_SET_QUALITY,
1318 AVC_SET_HURRY_UP,
1319
1320 // set audio commands
1321 AVC_SET_SAMPLE_RATE = 0xACE000,
1322 AVC_SET_CHANNELS,
1323
1324} avc_cmd_t;
1325
1326/**
1327 * \param handle allocated private structure by libavcodec
1328 * for initialization pass NULL - will be returned pout
1329 * user is supposed to know nothing about its structure
1330 * \param cmd type of operation to be performed
1331 * \param pint input parameter
1332 * \param pout output parameter
1333 *
1334 * \returns command status - eventually for query command it might return
1335 * integer resulting value
1336 */
1337int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1338
544eb99c 1339/* memory */
18f77016
ZK
1340void *av_malloc(unsigned int size);
1341void *av_mallocz(unsigned int size);
8e1e6f31 1342void *av_realloc(void *ptr, unsigned int size);
544eb99c 1343void av_free(void *ptr);
8e1e6f31 1344char *av_strdup(const char *s);
544eb99c
FB
1345void __av_freep(void **ptr);
1346#define av_freep(p) __av_freep((void **)(p))
97d96aaa 1347void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
1348/* for static data only */
1349/* call av_free_static to release all staticaly allocated tables */
628d601b 1350void av_free_static(void);
855ea723
ZK
1351void *__av_mallocz_static(void** location, unsigned int size);
1352#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
544eb99c 1353
02d697aa
ZK
1354#ifdef __cplusplus
1355}
1356#endif
1357
a96b68b7 1358#endif /* AVCODEC_H */