fixing apiexample
[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 4624
9#define LIBAVCODEC_BUILD_STR "4624"
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
32 /* various pcm "codecs" */
33 CODEC_ID_PCM_S16LE,
34 CODEC_ID_PCM_S16BE,
35 CODEC_ID_PCM_U16LE,
36 CODEC_ID_PCM_U16BE,
37 CODEC_ID_PCM_S8,
38 CODEC_ID_PCM_U8,
39 CODEC_ID_PCM_MULAW,
40 CODEC_ID_PCM_ALAW,
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41
42 /* various adpcm codecs */
43 CODEC_ID_ADPCM_IMA_QT,
44 CODEC_ID_ADPCM_IMA_WAV,
45 CODEC_ID_ADPCM_MS,
de6d9b64 46};
84afee34 47#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
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48
49enum CodecType {
4a663d80 50 CODEC_TYPE_UNKNOWN = -1,
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51 CODEC_TYPE_VIDEO,
52 CODEC_TYPE_AUDIO,
53};
54
55enum PixelFormat {
9f862d11 56 PIX_FMT_ANY = -1,
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57 PIX_FMT_YUV420P,
58 PIX_FMT_YUV422,
59 PIX_FMT_RGB24,
60 PIX_FMT_BGR24,
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61 PIX_FMT_YUV422P,
62 PIX_FMT_YUV444P,
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63 PIX_FMT_RGBA32,
64 PIX_FMT_BGRA32,
be8ffec9 65 PIX_FMT_YUV410P
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66};
67
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68/* currently unused, may be used if 24/32 bits samples ever supported */
69enum SampleFormat {
70 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
71};
72
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73/* in bytes */
74#define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
75
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76/* motion estimation type, EPZS by default */
77enum Motion_Est_ID {
101bea5f 78 ME_ZERO = 1,
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79 ME_FULL,
80 ME_LOG,
81 ME_PHODS,
82 ME_EPZS,
83 ME_X1
84};
85
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86typedef struct RcOverride{
87 int start_frame;
88 int end_frame;
89 int qscale; // if this is 0 then quality_factor will be used instead
90 float quality_factor;
91} RcOverride;
92
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93/* only for ME compatiblity with old apps */
94extern int motion_estimation_method;
95
e4986da9 96/* ME algos sorted by quality */
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97static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
98 ME_X1, ME_EPZS, ME_FULL };
de6d9b64 99
28db7fce 100
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101#define FF_MAX_B_FRAMES 4
102
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103/* encoding support
104 these flags can be passed in AVCodecContext.flags before initing
105 Note: note not everything is supported yet
106*/
de6d9b64 107
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108#define CODEC_FLAG_HQ 0x0001 /* brute force MB-type decission mode (slow) */
109#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
110#define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
111#define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
112#define CODEC_FLAG_GMC 0x0020 /* use GMC */
113#define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
114#define CODEC_FLAG_PART 0x0080 /* use data partitioning */
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115/* parent program gurantees that the input for b-frame containing streams is not written to
116 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 117#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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118#define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
119#define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
e84c31dc 120#define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
b71901e6 121#define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
93a21abd 122#define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
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123#define CODEC_FLAG_DR1 0x8000 /* direct renderig type 1 (store internal frames in external buffers) */
124#define CODEC_FLAG_NOT_TRUNCATED 0x00010000 /* input bitstream is not truncated, except before a startcode
125 allows the last part of a frame to be decoded earlier */
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126/* codec capabilities */
127
b71901e6 128#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
93a21abd 129#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
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130/* if 'parse_only' field is true, then avcodec_parse_frame() can be
131 used */
132#define CODEC_CAP_PARSE_ONLY 0x0004
bf89e6b1 133
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134#define FRAME_RATE_BASE 10000
135
136typedef struct AVCodecContext {
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137 /**
138 * the average bitrate
139 * encoding: set by user. unused for constant quantizer encoding
140 * decoding: set by lavc. 0 or some bitrate if this info is available in the stream
141 */
de6d9b64 142 int bit_rate;
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143
144 /**
145 * number of bits the bitstream is allowed to diverge from the reference
146 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
147 * encoding: set by user. unused for constant quantizer encoding
148 * decoding: unused
149 */
150 int bit_rate_tolerance;
151
152 /**
153 * CODEC_FLAG_*
154 * encoding: set by user.
155 * decoding: set by user.
156 */
de6d9b64 157 int flags;
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158
159 /**
160 * some codecs needs additionnal format info. It is stored here
161 * encoding: set by user.
162 * decoding: set by lavc. (FIXME is this ok?)
163 */
164 int sub_id;
165
166 /**
167 * motion estimation algorithm used for video coding
168 * encoding: set by user.
169 * decoding: unused
170 */
171 int me_method;
172
173 /**
174 * some codecs need / can use extra-data like huffman tables
175 * mjpeg: huffman tables
176 * rv10: additional flags
177 * encoding: set/allocated/freed by user.
178 * decoding: set/allocated/freed by lavc. (can be NULL)
179 */
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180 void *extradata;
181 int extradata_size;
182
de6d9b64 183 /* video only */
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184 /**
185 * frames per sec multiplied by FRAME_RATE_BASE
186 * for variable fps this is the precission, so if the timestamps
187 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
188 * encoding: set by user
189 * decoding: set by lavc. 0 or the frame_rate if available
190 */
191 int frame_rate;
192
193 /**
194 * encoding: set by user.
195 * decoding: set by user, some codecs might override / change it during playback
196 */
de6d9b64 197 int width, height;
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198
199 /**
200 * encoding: set by user. 0 if not known
201 * decoding: set by lavc. 0 if not known
202 */
11ce8834 203 int aspect_ratio_info;
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204#define FF_ASPECT_SQUARE 1
205#define FF_ASPECT_4_3_625 2
206#define FF_ASPECT_4_3_525 3
207#define FF_ASPECT_16_9_625 4
208#define FF_ASPECT_16_9_525 5
e769f053 209#define FF_ASPECT_EXTENDED 15
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210
211 /**
212 * the number of pictures in a group of pitures, or 0 for intra_only
213 * encoding: set by user.
214 * decoding: unused
215 */
216 int gop_size;
217
218 /**
219 * pixel format, see PIX_FMT_xxx
220 * encoding: unused
221 * decoding: set by lavc.
222 */
223 enum PixelFormat pix_fmt;
224
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225 int repeat_pict; /* when decoding, this signal how much the picture */
226 /* must be delayed. */
227 /* extra_delay = (repeat_pict / 2) * (1/fps) */
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228
229 /**
230 * if non NULL, 'draw_horiz_band' is called by the libavcodec
231 * decoder to draw an horizontal band. It improve cache usage. Not
232 * all codecs can do that. You must check the codec capabilities
233 * before
234 * encoding: unused
235 * decoding: set by user.
236 */
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237 void (*draw_horiz_band)(struct AVCodecContext *s,
238 UINT8 **src_ptr, int linesize,
239 int y, int width, int height);
240
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241 /* audio only */
242 int sample_rate; /* samples per sec */
243 int channels;
a96b68b7 244 int sample_fmt; /* sample format, currenly unused */
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245
246 /* the following data should not be initialized */
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247 int frame_size; /* in samples, initialized when calling 'init' */
248 int frame_number; /* audio or video frame number */
249 int real_pict_num; /* returns the real picture number of
250 previous encoded frame */
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251
252 /**
253 * 1 -> keyframe, 0-> not
254 * encoding: set by lavc (for the outputed bitstream, not the input frame)
255 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
256 */
257 int key_frame;
258
259 /**
260 * picture type of the previous en/decoded frame, see ?_TYPE below
261 * encoding: set by lavc (for the outputed bitstream, not the input frame)
262 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
263 */
264 int pict_type;
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265/* FIXME: these should have FF_ */
266#define I_TYPE 1 // Intra
267#define P_TYPE 2 // Predicted
268#define B_TYPE 3 // Bi-dir predicted
269#define S_TYPE 4 // S(GMC)-VOP MPEG4
270
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271 /**
272 * number of frames the decoded output will be delayed relative to
273 * the encoded input
274 * encoding: set by lavc.
275 * decoding: unused
276 */
277 int delay;
278
279 /**
280 * mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames
281 * stride= mb_width = (width+15)>>4 (FIXME export stride?)
282 * encoding: unused
283 * decoding: set by lavc
284 */
285 uint8_t *mbskip_table;
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286
287 /* encoding parameters */
de6d9b64 288 int quality; /* quality of the previous encoded frame
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289 (between 1 (good) and 31 (bad))
290 this is allso used to set the quality in vbr mode
291 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
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292 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
293 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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294
295 /**
296 * minimum quantizer
297 * encoding: set by user.
298 * decoding: unused
299 */
300 int qmin;
301
302 /**
303 * maximum quantizer
304 * encoding: set by user.
305 * decoding: unused
306 */
307 int qmax;
308
309 /**
310 * maximum quantizer difference etween frames
311 * encoding: set by user.
312 * decoding: unused
313 */
314 int max_qdiff;
315
316 /**
317 * maximum number of b frames between non b frames
318 * note: the output will be delayed by max_b_frames+1 relative to the input
319 * encoding: set by user.
320 * decoding: unused
321 */
322 int max_b_frames;
323
324 /**
325 * qscale factor between ip and b frames
326 * encoding: set by user.
327 * decoding: unused
328 */
329 float b_quant_factor;
330
331 /** obsolete FIXME remove */
332 int rc_strategy;
8b4c7dbc 333 int b_frame_strategy;
9dbcbd92 334
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335 /**
336 * encoding: unused
337 * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too
338 */
339 int hurry_up;
2417652e 340
de6d9b64 341 struct AVCodec *codec;
b71901e6 342
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343 void *priv_data;
344
644d98a4 345 /* The following data is for RTP friendly coding */
1f6b6e50 346 /* By now only H.263/H.263+/MPEG4 coder honours this */
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347 int rtp_mode; /* 1 for activate RTP friendly-mode */
348 /* highers numbers represent more error-prone */
349 /* enviroments, by now just "1" exist */
350
351 int rtp_payload_size; /* The size of the RTP payload, the coder will */
352 /* do it's best to deliver a chunk with size */
353 /* below rtp_payload_size, the chunk will start */
354 /* with a start code on some codecs like H.263 */
355 /* This doesn't take account of any particular */
356 /* headers inside the transmited RTP payload */
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357
358
359 /* The RTP callcack: This function is called */
360 /* every time the encoder as a packet to send */
361 /* Depends on the encoder if the data starts */
362 /* with a Start Code (it should) H.263 does */
363 void (*rtp_callback)(void *data, int size, int packet_number);
364
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365 /**
366 * if you set get_psnr to 1 then after encoding you will have the
367 * PSNR on psnr_y/cb/cr
368 * encoding: set by user (1-> on, 0-> off)
369 * decoding: unused
370 */
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371 int get_psnr;
372 float psnr_y;
373 float psnr_cb;
374 float psnr_cr;
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375
376 /* statistics, used for 2-pass encoding */
377 int mv_bits;
378 int header_bits;
379 int i_tex_bits;
380 int p_tex_bits;
381 int i_count;
382 int p_count;
383 int skip_count;
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384 int misc_bits;
385
386 /**
387 * number of bits used for the previously encoded frame
388 * encoding: set by lavc
389 * decoding: unused
390 */
098eefe1 391 int frame_bits;
644d98a4 392
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393 /**
394 * private data of the user, can be used to carry app specific stuff
395 * encoding: set by user
396 * decoding: set by user
397 */
398 void *opaque;
399
de6d9b64 400 char codec_name[32];
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401 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
402 enum CodecID codec_id; /* see CODEC_ID_xxx */
de6d9b64 403 unsigned int codec_tag; /* codec tag, only used if unknown codec */
92ba5ffb 404
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405 /**
406 * workaround bugs in encoders which cannot be detected automatically
407 * encoding: unused
408 * decoding: set by user
409 */
410 int workaround_bugs;
411
412 /**
413 * encoding: set by user
414 * decoding: unused
415 */
1f6b6e50 416 int luma_elim_threshold;
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417
418 /**
419 * encoding: set by user
420 * decoding: unused
421 */
1f6b6e50 422 int chroma_elim_threshold;
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423
424 /**
425 * strictly follow the std (MPEG4, ...)
426 * encoding: set by user
427 * decoding: unused
428 */
429 int strict_std_compliance;
430
431 /**
432 * qscale offset between ip and b frames
433 * encoding: set by user.
434 * decoding: unused
435 */
436 float b_quant_offset;
437
438 /**
439 * error resilience {-1,0,1} higher values will detect more errors but may missdetect
440 * some more or less valid parts as errors
441 * encoding: unused
442 * decoding: set by user
443 */
1f6b6e50 444 int error_resilience;
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445
446#ifndef MBC
447#define MBC 128
448#define MBR 96
449#endif
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450#define QP_TYPE int //FIXME note xxx this might be changed to int8_t
451
452 QP_TYPE *quant_store; /* field for communicating with external postprocessing */
93a21abd 453
917e06c8 454 unsigned qstride;
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455
456 /**
457 * buffer, where the next picture should be decoded into
458 * encoding: unused
459 * decoding: set by user in get_buffer_callback to a buffer into which the next part
460 * of the bitstream will be decoded, and set by lavc at end of frame to the
461 * next frame which needs to be displayed
462 */
93a21abd 463 uint8_t *dr_buffer[3];
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464
465 /**
466 * stride of the luminance part of the dr buffer
467 * encoding: unused
468 * decoding: set by user
469 */
93a21abd 470 int dr_stride;
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471
472 /**
473 * same behavior as dr_buffer, just for some private data of the user
474 * encoding: unused
475 * decoding: set by user in get_buffer_callback, and set by lavc at end of frame
476 */
93a21abd 477 void *dr_opaque_frame;
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478
479 /**
480 * called at the beginning of each frame to get a buffer for it
481 * encoding: unused
482 * decoding: set by user
483 */
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484 void (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
485
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486 /**
487 * is 1 if the decoded stream contains b frames, 0 otherwise
488 * encoding: unused
489 * decoding: set by lavc
490 */
491 int has_b_frames;
492
493 /**
494 * stride of the chrominance part of the dr buffer
495 * encoding: unused
496 * decoding: set by user
497 */
0fd90455 498 int dr_uvstride;
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499
500 /**
501 * number of dr buffers
502 * encoding: unused
503 * decoding: set by user
504 */
0fd90455 505 int dr_ip_buffer_count;
b71901e6 506
0147f198 507 int block_align; /* currently only for adpcm codec in wav/avi */
ce980a95 508
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509 int parse_only; /* decoding only: if true, only parsing is done
510 (function avcodec_parse_frame()). The frame
511 data is returned. Only MPEG codecs support this now. */
ce980a95 512
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513 /**
514 * 0-> h263 quant 1-> mpeg quant
515 * encoding: set by user.
516 * decoding: unused
517 */
518 int mpeg_quant;
ce980a95 519
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520 /**
521 * pass1 encoding statistics output buffer
522 * encoding: set by lavc
523 * decoding: unused
524 */
ce980a95 525 char *stats_out; /* encoding statistics output buffer */
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526
527 /**
528 * pass2 encoding statistics input buffer.
529 * concatenated stuff from stats_out of pass1 should be placed here
530 * encoding: allocated/set/freed by user
531 * decoding: unused
532 */
533 char *stats_in;
534
535 /**
536 * ratecontrol qmin qmax limiting method
537 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
538 * encoding: set by user.
539 * decoding: unused
540 */
ce980a95 541 float rc_qsquish;
b71901e6 542
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543 float rc_qmod_amp;
544 int rc_qmod_freq;
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545
546 /**
547 * ratecontrol override, see RcOverride
548 * encoding: allocated/set/freed by user.
549 * decoding: unused
550 */
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551 RcOverride *rc_override;
552 int rc_override_count;
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553
554 /**
555 * rate control equation
556 * encoding: set by user
557 * decoding: unused
558 */
ce980a95 559 char *rc_eq;
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560
561 /**
562 * maximum bitrate
563 * encoding: set by user.
564 * decoding: unused
565 */
ce980a95 566 int rc_max_rate;
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567
568 /**
569 * minimum bitrate
570 * encoding: set by user.
571 * decoding: unused
572 */
ce980a95 573 int rc_min_rate;
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574
575 /**
576 * decoder bitstream buffer size
577 * encoding: set by user.
578 * decoding: unused
579 */
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580 int rc_buffer_size;
581 float rc_buffer_aggressivity;
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582
583 /**
584 * qscale factor between p and i frames
585 * encoding: set by user.
586 * decoding: unused
587 */
588 float i_quant_factor;
589
590 /**
591 * qscale offset between p and i frames
592 * encoding: set by user.
593 * decoding: unused
594 */
595 float i_quant_offset;
596
597 /**
598 * initial complexity for pass1 ratecontrol
599 * encoding: set by user.
600 * decoding: unused
601 */
ce980a95 602 float rc_initial_cplx;
917e06c8 603
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604 /**
605 * custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
606 * encoding: set by user.
607 * decoding: set by lavc.
608 */
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609 int aspected_width;
610 int aspected_height;
611
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612 /**
613 * dct algorithm, see FF_DCT_* below
614 * encoding: set by user
615 * decoding: unused
616 */
28db7fce 617 int dct_algo;
c7e07931 618#define FF_DCT_AUTO 0
28db7fce 619#define FF_DCT_FASTINT 1
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620#define FF_DCT_INT 2
621#define FF_DCT_MMX 3
622#define FF_DCT_MLIB 4
28db7fce 623
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624 /**
625 * presentation timestamp in micro seconds (time when frame should be shown to user)
626 * if 0 then the frame_rate will be used as reference
627 * encoding: set by user
628 * decoding; set by lavc
629 */
630 long long int pts;
15415af4 631
1f6b6e50 632 //FIXME this should be reordered after kabis API is finished ...
ce980a95 633 //TODO kill kabi
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634 /*
635 Note: Below are located reserved fields for further usage
636 It requires for ABI !!!
637 If you'll perform some changes then borrow new space from these fields
638 (void * can be safety replaced with struct * ;)
639 P L E A S E ! ! !
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640 Note: use avcodec_alloc_context instead of malloc to allocate this,
641 otherwise the ABI compatibility will be broken between versions
642 IMPORTANT: Never change order of already declared fields!!!
643 */
644 //TODO: remove mess below
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645 unsigned long long int
646 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
15415af4 647 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11;
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648 float
649 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
ce980a95 650 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
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651 void
652 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
ce980a95 653 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
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654 unsigned long int
655 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
656 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
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657 unsigned short int
658 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
659 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
660 unsigned char
661 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
0fd90455 662 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
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663 unsigned int
664 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,ui_res6,ui_res7,ui_res8,ui_res9,
28db7fce 665 ui_res10,ui_res11,ui_res12,ui_res13,ui_res14,ui_res15,ui_res16;
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666} AVCodecContext;
667
668typedef struct AVCodec {
669 char *name;
670 int type;
671 int id;
672 int priv_data_size;
673 int (*init)(AVCodecContext *);
674 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
675 int (*close)(AVCodecContext *);
0fd90455 676 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
de6d9b64 677 UINT8 *buf, int buf_size);
bf89e6b1 678 int capabilities;
de6d9b64 679 struct AVCodec *next;
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680 /*
681 Note: Below are located reserved fields for further usage
682 It requires for ABI !!!
683 If you'll perform some changes then borrow new space from these fields
684 (void * can be safety replaced with struct * ;)
685 P L E A S E ! ! !
686 IMPORTANT: Never change order of already declared fields!!!
687 */
688 unsigned long long int
689 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
690 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
691 float
692 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
693 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
694 void
695 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
696 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
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697} AVCodec;
698
699/* three components are given, that's all */
700typedef struct AVPicture {
701 UINT8 *data[3];
702 int linesize[3];
703} AVPicture;
704
705extern AVCodec ac3_encoder;
706extern AVCodec mp2_encoder;
9d36bdc9 707extern AVCodec mp3lame_encoder;
81e0d0b4 708extern AVCodec oggvorbis_encoder;
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709extern AVCodec mpeg1video_encoder;
710extern AVCodec h263_encoder;
711extern AVCodec h263p_encoder;
712extern AVCodec rv10_encoder;
713extern AVCodec mjpeg_encoder;
bf89e6b1 714extern AVCodec mpeg4_encoder;
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715extern AVCodec msmpeg4v1_encoder;
716extern AVCodec msmpeg4v2_encoder;
717extern AVCodec msmpeg4v3_encoder;
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718extern AVCodec wmv1_encoder;
719extern AVCodec wmv2_encoder;
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720
721extern AVCodec h263_decoder;
bf89e6b1 722extern AVCodec mpeg4_decoder;
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723extern AVCodec msmpeg4v1_decoder;
724extern AVCodec msmpeg4v2_decoder;
725extern AVCodec msmpeg4v3_decoder;
e1a9dbff 726extern AVCodec wmv1_decoder;
0151a6f5 727extern AVCodec wmv2_decoder;
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728extern AVCodec mpeg_decoder;
729extern AVCodec h263i_decoder;
730extern AVCodec rv10_decoder;
be8ffec9 731extern AVCodec svq1_decoder;
4e66ab3b 732extern AVCodec mjpeg_decoder;
4b1f4f23 733extern AVCodec mp2_decoder;
a96b68b7 734extern AVCodec mp3_decoder;
de6d9b64 735
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736/* pcm codecs */
737#define PCM_CODEC(id, name) \
738extern AVCodec name ## _decoder; \
739extern AVCodec name ## _encoder;
740
741PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
742PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
743PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
744PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
745PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
746PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
747PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
748PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
749
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750/* adpcm codecs */
751
752PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
753PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
754PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
755
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756#undef PCM_CODEC
757
758/* dummy raw video codec */
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759extern AVCodec rawvideo_codec;
760
761/* the following codecs use external GPL libs */
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762extern AVCodec ac3_decoder;
763
764/* resample.c */
765
766struct ReSampleContext;
767
768typedef struct ReSampleContext ReSampleContext;
769
770ReSampleContext *audio_resample_init(int output_channels, int input_channels,
771 int output_rate, int input_rate);
772int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
773void audio_resample_close(ReSampleContext *s);
774
775/* YUV420 format is assumed ! */
776
777struct ImgReSampleContext;
778
779typedef struct ImgReSampleContext ImgReSampleContext;
780
781ImgReSampleContext *img_resample_init(int output_width, int output_height,
782 int input_width, int input_height);
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783
784ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
785 int iwidth, int iheight,
786 int topBand, int bottomBand,
787 int leftBand, int rightBand);
788
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789void img_resample(ImgReSampleContext *s,
790 AVPicture *output, AVPicture *input);
791
792void img_resample_close(ImgReSampleContext *s);
793
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794void avpicture_fill(AVPicture *picture, UINT8 *ptr,
795 int pix_fmt, int width, int height);
796int avpicture_get_size(int pix_fmt, int width, int height);
797
798/* convert among pixel formats */
799int img_convert(AVPicture *dst, int dst_pix_fmt,
800 AVPicture *src, int pix_fmt,
801 int width, int height);
802
803/* deinterlace a picture */
804int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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805 int pix_fmt, int width, int height);
806
807/* external high level API */
808
809extern AVCodec *first_avcodec;
810
156e5023 811/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 812unsigned avcodec_version(void);
8bceb6af 813/* returns LIBAVCODEC_BUILD constant */
51a49663 814unsigned avcodec_build(void);
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815void avcodec_init(void);
816
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817void avcodec_set_bit_exact(void);
818
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819void register_avcodec(AVCodec *format);
820AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 821AVCodec *avcodec_find_encoder_by_name(const char *name);
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822AVCodec *avcodec_find_decoder(enum CodecID id);
823AVCodec *avcodec_find_decoder_by_name(const char *name);
824void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
825
a949d72e 826AVCodecContext *avcodec_alloc_context();
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827int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
828int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
829 int *frame_size_ptr,
830 UINT8 *buf, int buf_size);
831int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
832 int *got_picture_ptr,
833 UINT8 *buf, int buf_size);
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834int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
835 int *data_size_ptr,
836 UINT8 *buf, int buf_size);
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837int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
838 const short *samples);
839int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
840 const AVPicture *pict);
841
842int avcodec_close(AVCodecContext *avctx);
843
844void avcodec_register_all(void);
a96b68b7 845
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846void avcodec_flush_buffers(AVCodecContext *avctx);
847
79e7b305 848#ifdef FF_POSTPROCESS
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849extern int quant_store[MBR+1][MBC+1]; // [Review]
850#endif
851
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852
853/**
854 * Interface for 0.5.0 version
855 *
856 * do not even think about it's usage for this moment
857 */
858
859typedef struct {
860 // compressed size used from given memory buffer
861 int size;
862 /// I/P/B frame type
863 int frame_type;
864} avc_enc_result_t;
865
866/**
867 * Commands
868 * order can't be changed - once it was defined
869 */
870typedef enum {
871 // general commands
872 AVC_OPEN_BY_NAME = 0xACA000,
873 AVC_OPEN_BY_CODEC_ID,
874 AVC_OPEN_BY_FOURCC,
875 AVC_CLOSE,
876
877 AVC_FLUSH,
878 // pin - struct { uint8_t* src, uint_t src_size }
879 // pout - struct { AVPicture* img, consumed_bytes,
880 AVC_DECODE,
881 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
882 // pout - uint_t used_from_dest_size
883 AVC_ENCODE,
884
885 // query/get video commands
886 AVC_GET_VERSION = 0xACB000,
887 AVC_GET_WIDTH,
888 AVC_GET_HEIGHT,
889 AVC_GET_DELAY,
890 AVC_GET_QUANT_TABLE,
891 // ...
892
893 // query/get audio commands
894 AVC_GET_FRAME_SIZE = 0xABC000,
895
896 // maybe define some simple structure which
897 // might be passed to the user - but they can't
898 // contain any codec specific parts and these
899 // calls are usualy necessary only few times
900
901 // set video commands
902 AVC_SET_WIDTH = 0xACD000,
903 AVC_SET_HEIGHT,
904
905 // set video encoding commands
906 AVC_SET_FRAME_RATE = 0xACD800,
907 AVC_SET_QUALITY,
908 AVC_SET_HURRY_UP,
909
910 // set audio commands
911 AVC_SET_SAMPLE_RATE = 0xACE000,
912 AVC_SET_CHANNELS,
913
914} avc_cmd_t;
915
916/**
917 * \param handle allocated private structure by libavcodec
918 * for initialization pass NULL - will be returned pout
919 * user is supposed to know nothing about its structure
920 * \param cmd type of operation to be performed
921 * \param pint input parameter
922 * \param pout output parameter
923 *
924 * \returns command status - eventually for query command it might return
925 * integer resulting value
926 */
927int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
928
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929/* memory */
930void *av_malloc(int size);
931void *av_mallocz(int size);
932void av_free(void *ptr);
933void __av_freep(void **ptr);
934#define av_freep(p) __av_freep((void **)(p))
935
a96b68b7 936#endif /* AVCODEC_H */