fixing ac prediction encoding with adaptive quantization
[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 4625
9#define LIBAVCODEC_BUILD_STR "4625"
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#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 /* normalize adaptive quantization */
127
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128/* codec capabilities */
129
b71901e6 130#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
93a21abd 131#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
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132/* if 'parse_only' field is true, then avcodec_parse_frame() can be
133 used */
134#define CODEC_CAP_PARSE_ONLY 0x0004
bf89e6b1 135
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136#define FRAME_RATE_BASE 10000
137
138typedef struct AVCodecContext {
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139 /**
140 * the average bitrate
141 * encoding: set by user. unused for constant quantizer encoding
142 * decoding: set by lavc. 0 or some bitrate if this info is available in the stream
143 */
de6d9b64 144 int bit_rate;
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145
146 /**
147 * number of bits the bitstream is allowed to diverge from the reference
148 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
149 * encoding: set by user. unused for constant quantizer encoding
150 * decoding: unused
151 */
152 int bit_rate_tolerance;
153
154 /**
155 * CODEC_FLAG_*
156 * encoding: set by user.
157 * decoding: set by user.
158 */
de6d9b64 159 int flags;
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160
161 /**
162 * some codecs needs additionnal format info. It is stored here
163 * encoding: set by user.
164 * decoding: set by lavc. (FIXME is this ok?)
165 */
166 int sub_id;
167
168 /**
169 * motion estimation algorithm used for video coding
170 * encoding: set by user.
171 * decoding: unused
172 */
173 int me_method;
174
175 /**
176 * some codecs need / can use extra-data like huffman tables
177 * mjpeg: huffman tables
178 * rv10: additional flags
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179 * encoding: set/allocated/freed by lavc.
180 * decoding: set/allocated/freed by user.
b71901e6 181 */
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182 void *extradata;
183 int extradata_size;
184
de6d9b64 185 /* video only */
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186 /**
187 * frames per sec multiplied by FRAME_RATE_BASE
188 * for variable fps this is the precission, so if the timestamps
189 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
190 * encoding: set by user
191 * decoding: set by lavc. 0 or the frame_rate if available
192 */
193 int frame_rate;
194
195 /**
196 * encoding: set by user.
197 * decoding: set by user, some codecs might override / change it during playback
198 */
de6d9b64 199 int width, height;
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200
201 /**
202 * encoding: set by user. 0 if not known
203 * decoding: set by lavc. 0 if not known
204 */
11ce8834 205 int aspect_ratio_info;
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206#define FF_ASPECT_SQUARE 1
207#define FF_ASPECT_4_3_625 2
208#define FF_ASPECT_4_3_525 3
209#define FF_ASPECT_16_9_625 4
210#define FF_ASPECT_16_9_525 5
e769f053 211#define FF_ASPECT_EXTENDED 15
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212
213 /**
214 * the number of pictures in a group of pitures, or 0 for intra_only
215 * encoding: set by user.
216 * decoding: unused
217 */
218 int gop_size;
219
220 /**
221 * pixel format, see PIX_FMT_xxx
222 * encoding: unused
223 * decoding: set by lavc.
224 */
225 enum PixelFormat pix_fmt;
226
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227 int repeat_pict; /* when decoding, this signal how much the picture */
228 /* must be delayed. */
229 /* extra_delay = (repeat_pict / 2) * (1/fps) */
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230
231 /**
232 * if non NULL, 'draw_horiz_band' is called by the libavcodec
233 * decoder to draw an horizontal band. It improve cache usage. Not
234 * all codecs can do that. You must check the codec capabilities
235 * before
236 * encoding: unused
237 * decoding: set by user.
238 */
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239 void (*draw_horiz_band)(struct AVCodecContext *s,
240 UINT8 **src_ptr, int linesize,
241 int y, int width, int height);
242
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243 /* audio only */
244 int sample_rate; /* samples per sec */
245 int channels;
a96b68b7 246 int sample_fmt; /* sample format, currenly unused */
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247
248 /* the following data should not be initialized */
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249 int frame_size; /* in samples, initialized when calling 'init' */
250 int frame_number; /* audio or video frame number */
251 int real_pict_num; /* returns the real picture number of
252 previous encoded frame */
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253
254 /**
255 * 1 -> keyframe, 0-> not
256 * encoding: set by lavc (for the outputed bitstream, not the input frame)
257 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
258 */
259 int key_frame;
260
261 /**
262 * picture type of the previous en/decoded frame, see ?_TYPE below
263 * encoding: set by lavc (for the outputed bitstream, not the input frame)
264 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
265 */
266 int pict_type;
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267/* FIXME: these should have FF_ */
268#define I_TYPE 1 // Intra
269#define P_TYPE 2 // Predicted
270#define B_TYPE 3 // Bi-dir predicted
271#define S_TYPE 4 // S(GMC)-VOP MPEG4
272
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273 /**
274 * number of frames the decoded output will be delayed relative to
275 * the encoded input
276 * encoding: set by lavc.
277 * decoding: unused
278 */
279 int delay;
280
281 /**
282 * mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames
283 * stride= mb_width = (width+15)>>4 (FIXME export stride?)
284 * encoding: unused
285 * decoding: set by lavc
286 */
287 uint8_t *mbskip_table;
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288
289 /* encoding parameters */
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290 /**
291 * quality (between 1 (good) and 31 (bad))
292 * encoding: set by user if CODEC_FLAG_QSCALE is set otherwise set by lavc
293 * decoding: set by lavc
294 */
de6d9b64 295 int quality; /* quality of the previous encoded frame
c5d309f2 296
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297 this is allso used to set the quality in vbr mode
298 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
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299 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
300 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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301
302 /**
303 * minimum quantizer
304 * encoding: set by user.
305 * decoding: unused
306 */
307 int qmin;
308
309 /**
310 * maximum quantizer
311 * encoding: set by user.
312 * decoding: unused
313 */
314 int qmax;
315
316 /**
317 * maximum quantizer difference etween frames
318 * encoding: set by user.
319 * decoding: unused
320 */
321 int max_qdiff;
322
323 /**
324 * maximum number of b frames between non b frames
325 * note: the output will be delayed by max_b_frames+1 relative to the input
326 * encoding: set by user.
327 * decoding: unused
328 */
329 int max_b_frames;
330
331 /**
332 * qscale factor between ip and b frames
333 * encoding: set by user.
334 * decoding: unused
335 */
336 float b_quant_factor;
337
338 /** obsolete FIXME remove */
339 int rc_strategy;
8b4c7dbc 340 int b_frame_strategy;
9dbcbd92 341
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342 /**
343 * encoding: unused
344 * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too
345 */
346 int hurry_up;
2417652e 347
de6d9b64 348 struct AVCodec *codec;
b71901e6 349
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350 void *priv_data;
351
644d98a4 352 /* The following data is for RTP friendly coding */
1f6b6e50 353 /* By now only H.263/H.263+/MPEG4 coder honours this */
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354 int rtp_mode; /* 1 for activate RTP friendly-mode */
355 /* highers numbers represent more error-prone */
356 /* enviroments, by now just "1" exist */
357
358 int rtp_payload_size; /* The size of the RTP payload, the coder will */
359 /* do it's best to deliver a chunk with size */
360 /* below rtp_payload_size, the chunk will start */
361 /* with a start code on some codecs like H.263 */
362 /* This doesn't take account of any particular */
363 /* headers inside the transmited RTP payload */
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364
365
366 /* The RTP callcack: This function is called */
367 /* every time the encoder as a packet to send */
368 /* Depends on the encoder if the data starts */
369 /* with a Start Code (it should) H.263 does */
370 void (*rtp_callback)(void *data, int size, int packet_number);
371
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372 /**
373 * if you set get_psnr to 1 then after encoding you will have the
374 * PSNR on psnr_y/cb/cr
375 * encoding: set by user (1-> on, 0-> off)
376 * decoding: unused
377 */
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378 int get_psnr;
379 float psnr_y;
380 float psnr_cb;
381 float psnr_cr;
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382
383 /* statistics, used for 2-pass encoding */
384 int mv_bits;
385 int header_bits;
386 int i_tex_bits;
387 int p_tex_bits;
388 int i_count;
389 int p_count;
390 int skip_count;
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391 int misc_bits;
392
393 /**
394 * number of bits used for the previously encoded frame
395 * encoding: set by lavc
396 * decoding: unused
397 */
098eefe1 398 int frame_bits;
644d98a4 399
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400 /**
401 * private data of the user, can be used to carry app specific stuff
402 * encoding: set by user
403 * decoding: set by user
404 */
405 void *opaque;
406
de6d9b64 407 char codec_name[32];
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408 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
409 enum CodecID codec_id; /* see CODEC_ID_xxx */
de6d9b64 410 unsigned int codec_tag; /* codec tag, only used if unknown codec */
92ba5ffb 411
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412 /**
413 * workaround bugs in encoders which cannot be detected automatically
414 * encoding: unused
415 * decoding: set by user
416 */
417 int workaround_bugs;
418
419 /**
420 * encoding: set by user
421 * decoding: unused
422 */
1f6b6e50 423 int luma_elim_threshold;
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424
425 /**
426 * encoding: set by user
427 * decoding: unused
428 */
1f6b6e50 429 int chroma_elim_threshold;
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430
431 /**
432 * strictly follow the std (MPEG4, ...)
433 * encoding: set by user
434 * decoding: unused
435 */
436 int strict_std_compliance;
437
438 /**
439 * qscale offset between ip and b frames
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440 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
441 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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442 * encoding: set by user.
443 * decoding: unused
444 */
445 float b_quant_offset;
446
447 /**
448 * error resilience {-1,0,1} higher values will detect more errors but may missdetect
449 * some more or less valid parts as errors
450 * encoding: unused
451 * decoding: set by user
452 */
1f6b6e50 453 int error_resilience;
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454
455#ifndef MBC
456#define MBC 128
457#define MBR 96
458#endif
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459#define QP_TYPE int //FIXME note xxx this might be changed to int8_t
460
461 QP_TYPE *quant_store; /* field for communicating with external postprocessing */
93a21abd 462
917e06c8 463 unsigned qstride;
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464
465 /**
466 * buffer, where the next picture should be decoded into
467 * encoding: unused
468 * decoding: set by user in get_buffer_callback to a buffer into which the next part
469 * of the bitstream will be decoded, and set by lavc at end of frame to the
470 * next frame which needs to be displayed
471 */
93a21abd 472 uint8_t *dr_buffer[3];
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473
474 /**
475 * stride of the luminance part of the dr buffer
476 * encoding: unused
477 * decoding: set by user
478 */
93a21abd 479 int dr_stride;
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480
481 /**
482 * same behavior as dr_buffer, just for some private data of the user
483 * encoding: unused
484 * decoding: set by user in get_buffer_callback, and set by lavc at end of frame
485 */
93a21abd 486 void *dr_opaque_frame;
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487
488 /**
489 * called at the beginning of each frame to get a buffer for it
490 * encoding: unused
491 * decoding: set by user
492 */
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493 void (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
494
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495 /**
496 * is 1 if the decoded stream contains b frames, 0 otherwise
497 * encoding: unused
498 * decoding: set by lavc
499 */
500 int has_b_frames;
501
502 /**
503 * stride of the chrominance part of the dr buffer
504 * encoding: unused
505 * decoding: set by user
506 */
0fd90455 507 int dr_uvstride;
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508
509 /**
510 * number of dr buffers
511 * encoding: unused
512 * decoding: set by user
513 */
0fd90455 514 int dr_ip_buffer_count;
b71901e6 515
0147f198 516 int block_align; /* currently only for adpcm codec in wav/avi */
ce980a95 517
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518 int parse_only; /* decoding only: if true, only parsing is done
519 (function avcodec_parse_frame()). The frame
520 data is returned. Only MPEG codecs support this now. */
ce980a95 521
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522 /**
523 * 0-> h263 quant 1-> mpeg quant
524 * encoding: set by user.
525 * decoding: unused
526 */
527 int mpeg_quant;
ce980a95 528
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529 /**
530 * pass1 encoding statistics output buffer
531 * encoding: set by lavc
532 * decoding: unused
533 */
ce980a95 534 char *stats_out; /* encoding statistics output buffer */
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535
536 /**
537 * pass2 encoding statistics input buffer.
538 * concatenated stuff from stats_out of pass1 should be placed here
539 * encoding: allocated/set/freed by user
540 * decoding: unused
541 */
542 char *stats_in;
543
544 /**
545 * ratecontrol qmin qmax limiting method
546 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
547 * encoding: set by user.
548 * decoding: unused
549 */
ce980a95 550 float rc_qsquish;
b71901e6 551
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552 float rc_qmod_amp;
553 int rc_qmod_freq;
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554
555 /**
556 * ratecontrol override, see RcOverride
557 * encoding: allocated/set/freed by user.
558 * decoding: unused
559 */
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560 RcOverride *rc_override;
561 int rc_override_count;
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562
563 /**
564 * rate control equation
565 * encoding: set by user
566 * decoding: unused
567 */
ce980a95 568 char *rc_eq;
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569
570 /**
571 * maximum bitrate
572 * encoding: set by user.
573 * decoding: unused
574 */
ce980a95 575 int rc_max_rate;
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576
577 /**
578 * minimum bitrate
579 * encoding: set by user.
580 * decoding: unused
581 */
ce980a95 582 int rc_min_rate;
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583
584 /**
585 * decoder bitstream buffer size
586 * encoding: set by user.
587 * decoding: unused
588 */
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589 int rc_buffer_size;
590 float rc_buffer_aggressivity;
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591
592 /**
593 * qscale factor between p and i frames
594 * encoding: set by user.
595 * decoding: unused
596 */
597 float i_quant_factor;
598
599 /**
600 * qscale offset between p and i frames
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601 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
602 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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603 * encoding: set by user.
604 * decoding: unused
605 */
606 float i_quant_offset;
607
608 /**
609 * initial complexity for pass1 ratecontrol
610 * encoding: set by user.
611 * decoding: unused
612 */
ce980a95 613 float rc_initial_cplx;
917e06c8 614
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615 /**
616 * custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
617 * encoding: set by user.
618 * decoding: set by lavc.
619 */
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620 int aspected_width;
621 int aspected_height;
622
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623 /**
624 * dct algorithm, see FF_DCT_* below
625 * encoding: set by user
626 * decoding: unused
627 */
28db7fce 628 int dct_algo;
c7e07931 629#define FF_DCT_AUTO 0
28db7fce 630#define FF_DCT_FASTINT 1
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631#define FF_DCT_INT 2
632#define FF_DCT_MMX 3
633#define FF_DCT_MLIB 4
28db7fce 634
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635 /**
636 * presentation timestamp in micro seconds (time when frame should be shown to user)
637 * if 0 then the frame_rate will be used as reference
638 * encoding: set by user
639 * decoding; set by lavc
640 */
641 long long int pts;
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642
643 /**
644 * luminance masking (0-> disabled)
645 * encoding: set by user
646 * decoding: unused
647 */
648 float lumi_masking;
649
650 /**
651 * temporary complexity masking (0-> disabled)
652 * encoding: set by user
653 * decoding: unused
654 */
655 float temporal_cplx_masking;
656
657 /**
658 * spatial complexity masking (0-> disabled)
659 * encoding: set by user
660 * decoding: unused
661 */
662 float spatial_cplx_masking;
663
664 /**
665 * p block masking (0-> disabled)
666 * encoding: set by user
667 * decoding: unused
668 */
669 float p_masking;
15415af4 670
1f6b6e50 671 //FIXME this should be reordered after kabis API is finished ...
ce980a95 672 //TODO kill kabi
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673 /*
674 Note: Below are located reserved fields for further usage
675 It requires for ABI !!!
676 If you'll perform some changes then borrow new space from these fields
677 (void * can be safety replaced with struct * ;)
678 P L E A S E ! ! !
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679 Note: use avcodec_alloc_context instead of malloc to allocate this,
680 otherwise the ABI compatibility will be broken between versions
681 IMPORTANT: Never change order of already declared fields!!!
682 */
683 //TODO: remove mess below
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684 unsigned long long int
685 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
15415af4 686 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11;
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687 float
688 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
ce980a95 689 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
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690 void
691 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
ce980a95 692 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
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693 unsigned long int
694 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
695 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
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696 unsigned short int
697 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
698 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
699 unsigned char
700 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
0fd90455 701 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
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702 unsigned int
703 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,ui_res6,ui_res7,ui_res8,ui_res9,
28db7fce 704 ui_res10,ui_res11,ui_res12,ui_res13,ui_res14,ui_res15,ui_res16;
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705} AVCodecContext;
706
707typedef struct AVCodec {
708 char *name;
709 int type;
710 int id;
711 int priv_data_size;
712 int (*init)(AVCodecContext *);
713 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
714 int (*close)(AVCodecContext *);
0fd90455 715 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
de6d9b64 716 UINT8 *buf, int buf_size);
bf89e6b1 717 int capabilities;
de6d9b64 718 struct AVCodec *next;
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719 /*
720 Note: Below are located reserved fields for further usage
721 It requires for ABI !!!
722 If you'll perform some changes then borrow new space from these fields
723 (void * can be safety replaced with struct * ;)
724 P L E A S E ! ! !
725 IMPORTANT: Never change order of already declared fields!!!
726 */
727 unsigned long long int
728 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
729 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
730 float
731 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
732 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
733 void
734 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
735 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
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736} AVCodec;
737
738/* three components are given, that's all */
739typedef struct AVPicture {
740 UINT8 *data[3];
741 int linesize[3];
742} AVPicture;
743
744extern AVCodec ac3_encoder;
745extern AVCodec mp2_encoder;
9d36bdc9 746extern AVCodec mp3lame_encoder;
81e0d0b4 747extern AVCodec oggvorbis_encoder;
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748extern AVCodec mpeg1video_encoder;
749extern AVCodec h263_encoder;
750extern AVCodec h263p_encoder;
751extern AVCodec rv10_encoder;
752extern AVCodec mjpeg_encoder;
bf89e6b1 753extern AVCodec mpeg4_encoder;
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754extern AVCodec msmpeg4v1_encoder;
755extern AVCodec msmpeg4v2_encoder;
756extern AVCodec msmpeg4v3_encoder;
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757extern AVCodec wmv1_encoder;
758extern AVCodec wmv2_encoder;
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759
760extern AVCodec h263_decoder;
bf89e6b1 761extern AVCodec mpeg4_decoder;
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762extern AVCodec msmpeg4v1_decoder;
763extern AVCodec msmpeg4v2_decoder;
764extern AVCodec msmpeg4v3_decoder;
e1a9dbff 765extern AVCodec wmv1_decoder;
0151a6f5 766extern AVCodec wmv2_decoder;
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767extern AVCodec mpeg_decoder;
768extern AVCodec h263i_decoder;
769extern AVCodec rv10_decoder;
be8ffec9 770extern AVCodec svq1_decoder;
4e66ab3b 771extern AVCodec mjpeg_decoder;
4b1f4f23 772extern AVCodec mp2_decoder;
a96b68b7 773extern AVCodec mp3_decoder;
de6d9b64 774
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775/* pcm codecs */
776#define PCM_CODEC(id, name) \
777extern AVCodec name ## _decoder; \
778extern AVCodec name ## _encoder;
779
780PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
781PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
782PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
783PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
784PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
785PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
786PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
787PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
788
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789/* adpcm codecs */
790
791PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
792PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
793PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
794
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795#undef PCM_CODEC
796
797/* dummy raw video codec */
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798extern AVCodec rawvideo_codec;
799
800/* the following codecs use external GPL libs */
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801extern AVCodec ac3_decoder;
802
803/* resample.c */
804
805struct ReSampleContext;
806
807typedef struct ReSampleContext ReSampleContext;
808
809ReSampleContext *audio_resample_init(int output_channels, int input_channels,
810 int output_rate, int input_rate);
811int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
812void audio_resample_close(ReSampleContext *s);
813
814/* YUV420 format is assumed ! */
815
816struct ImgReSampleContext;
817
818typedef struct ImgReSampleContext ImgReSampleContext;
819
820ImgReSampleContext *img_resample_init(int output_width, int output_height,
821 int input_width, int input_height);
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822
823ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
824 int iwidth, int iheight,
825 int topBand, int bottomBand,
826 int leftBand, int rightBand);
827
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828void img_resample(ImgReSampleContext *s,
829 AVPicture *output, AVPicture *input);
830
831void img_resample_close(ImgReSampleContext *s);
832
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833void avpicture_fill(AVPicture *picture, UINT8 *ptr,
834 int pix_fmt, int width, int height);
835int avpicture_get_size(int pix_fmt, int width, int height);
836
837/* convert among pixel formats */
838int img_convert(AVPicture *dst, int dst_pix_fmt,
839 AVPicture *src, int pix_fmt,
840 int width, int height);
841
842/* deinterlace a picture */
843int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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844 int pix_fmt, int width, int height);
845
846/* external high level API */
847
848extern AVCodec *first_avcodec;
849
156e5023 850/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 851unsigned avcodec_version(void);
8bceb6af 852/* returns LIBAVCODEC_BUILD constant */
51a49663 853unsigned avcodec_build(void);
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854void avcodec_init(void);
855
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856void avcodec_set_bit_exact(void);
857
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858void register_avcodec(AVCodec *format);
859AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 860AVCodec *avcodec_find_encoder_by_name(const char *name);
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861AVCodec *avcodec_find_decoder(enum CodecID id);
862AVCodec *avcodec_find_decoder_by_name(const char *name);
863void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
864
a949d72e 865AVCodecContext *avcodec_alloc_context();
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866int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
867int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
868 int *frame_size_ptr,
869 UINT8 *buf, int buf_size);
870int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
871 int *got_picture_ptr,
872 UINT8 *buf, int buf_size);
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873int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
874 int *data_size_ptr,
875 UINT8 *buf, int buf_size);
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876int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
877 const short *samples);
878int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
879 const AVPicture *pict);
880
881int avcodec_close(AVCodecContext *avctx);
882
883void avcodec_register_all(void);
a96b68b7 884
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885void avcodec_flush_buffers(AVCodecContext *avctx);
886
79e7b305 887#ifdef FF_POSTPROCESS
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888extern int quant_store[MBR+1][MBC+1]; // [Review]
889#endif
890
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891
892/**
893 * Interface for 0.5.0 version
894 *
895 * do not even think about it's usage for this moment
896 */
897
898typedef struct {
899 // compressed size used from given memory buffer
900 int size;
901 /// I/P/B frame type
902 int frame_type;
903} avc_enc_result_t;
904
905/**
906 * Commands
907 * order can't be changed - once it was defined
908 */
909typedef enum {
910 // general commands
911 AVC_OPEN_BY_NAME = 0xACA000,
912 AVC_OPEN_BY_CODEC_ID,
913 AVC_OPEN_BY_FOURCC,
914 AVC_CLOSE,
915
916 AVC_FLUSH,
917 // pin - struct { uint8_t* src, uint_t src_size }
918 // pout - struct { AVPicture* img, consumed_bytes,
919 AVC_DECODE,
920 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
921 // pout - uint_t used_from_dest_size
922 AVC_ENCODE,
923
924 // query/get video commands
925 AVC_GET_VERSION = 0xACB000,
926 AVC_GET_WIDTH,
927 AVC_GET_HEIGHT,
928 AVC_GET_DELAY,
929 AVC_GET_QUANT_TABLE,
930 // ...
931
932 // query/get audio commands
933 AVC_GET_FRAME_SIZE = 0xABC000,
934
935 // maybe define some simple structure which
936 // might be passed to the user - but they can't
937 // contain any codec specific parts and these
938 // calls are usualy necessary only few times
939
940 // set video commands
941 AVC_SET_WIDTH = 0xACD000,
942 AVC_SET_HEIGHT,
943
944 // set video encoding commands
945 AVC_SET_FRAME_RATE = 0xACD800,
946 AVC_SET_QUALITY,
947 AVC_SET_HURRY_UP,
948
949 // set audio commands
950 AVC_SET_SAMPLE_RATE = 0xACE000,
951 AVC_SET_CHANNELS,
952
953} avc_cmd_t;
954
955/**
956 * \param handle allocated private structure by libavcodec
957 * for initialization pass NULL - will be returned pout
958 * user is supposed to know nothing about its structure
959 * \param cmd type of operation to be performed
960 * \param pint input parameter
961 * \param pout output parameter
962 *
963 * \returns command status - eventually for query command it might return
964 * integer resulting value
965 */
966int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
967
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968/* memory */
969void *av_malloc(int size);
970void *av_mallocz(int size);
971void av_free(void *ptr);
972void __av_freep(void **ptr);
973#define av_freep(p) __av_freep((void **)(p))
974
a96b68b7 975#endif /* AVCODEC_H */