more cosmetics so that doxygen output is readable ...
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
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7 */
8
9
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10#ifdef __cplusplus
11extern "C" {
12#endif
13
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14#include "common.h"
15
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16#define LIBAVCODEC_VERSION_INT 0x000406
17#define LIBAVCODEC_VERSION "0.4.6"
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18#define LIBAVCODEC_BUILD 4660
19#define LIBAVCODEC_BUILD_STR "4660"
4b1f4f23 20
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21enum CodecID {
22 CODEC_ID_NONE,
23 CODEC_ID_MPEG1VIDEO,
24 CODEC_ID_H263,
25 CODEC_ID_RV10,
26 CODEC_ID_MP2,
9d36bdc9 27 CODEC_ID_MP3LAME,
81e0d0b4 28 CODEC_ID_VORBIS,
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29 CODEC_ID_AC3,
30 CODEC_ID_MJPEG,
b135d9fb 31 CODEC_ID_MJPEGB,
bf89e6b1 32 CODEC_ID_MPEG4,
de6d9b64 33 CODEC_ID_RAWVIDEO,
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34 CODEC_ID_MSMPEG4V1,
35 CODEC_ID_MSMPEG4V2,
36 CODEC_ID_MSMPEG4V3,
e1a9dbff 37 CODEC_ID_WMV1,
b50eef3a 38 CODEC_ID_WMV2,
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39 CODEC_ID_H263P,
40 CODEC_ID_H263I,
be8ffec9 41 CODEC_ID_SVQ1,
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42 CODEC_ID_DVVIDEO,
43 CODEC_ID_DVAUDIO,
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44 CODEC_ID_WMAV1,
45 CODEC_ID_WMAV2,
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46 CODEC_ID_MACE3,
47 CODEC_ID_MACE6,
11f18faf 48 CODEC_ID_HUFFYUV,
f70f7c6d 49 CODEC_ID_CYUV,
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50
51 /* various pcm "codecs" */
52 CODEC_ID_PCM_S16LE,
53 CODEC_ID_PCM_S16BE,
54 CODEC_ID_PCM_U16LE,
55 CODEC_ID_PCM_U16BE,
56 CODEC_ID_PCM_S8,
57 CODEC_ID_PCM_U8,
58 CODEC_ID_PCM_MULAW,
59 CODEC_ID_PCM_ALAW,
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60
61 /* various adpcm codecs */
62 CODEC_ID_ADPCM_IMA_QT,
63 CODEC_ID_ADPCM_IMA_WAV,
64 CODEC_ID_ADPCM_MS,
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65};
66
67enum CodecType {
4a663d80 68 CODEC_TYPE_UNKNOWN = -1,
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69 CODEC_TYPE_VIDEO,
70 CODEC_TYPE_AUDIO,
71};
72
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73/**
74 * Pixel format.
75 */
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76enum PixelFormat {
77 PIX_FMT_YUV420P,
78 PIX_FMT_YUV422,
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79 PIX_FMT_RGB24, ///< 3 bytes, R is first
80 PIX_FMT_BGR24, ///< 3 bytes, B is first
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81 PIX_FMT_YUV422P,
82 PIX_FMT_YUV444P,
64863965 83 PIX_FMT_RGBA32, ///< always stored in cpu endianness
e9feea59 84 PIX_FMT_YUV410P,
a32072d0 85 PIX_FMT_YUV411P,
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86 PIX_FMT_RGB565, ///< always stored in cpu endianness
87 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 88 PIX_FMT_GRAY8,
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89 PIX_FMT_MONOWHITE, ///< 0 is white
90 PIX_FMT_MONOBLACK, ///< 0 is black
91 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
dab64ebc 92 PIX_FMT_NB,
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93};
94
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95/* currently unused, may be used if 24/32 bits samples ever supported */
96enum SampleFormat {
64863965 97 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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98};
99
de6d9b64 100/* in bytes */
bc8d1857 101#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 102
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103/**
104 * Required number of zero bytes at the end of the input bitstream for decoding.
105 * to avoid overreading (and possibly segfaulting)
106 */
107#define FF_INPUT_BUFFER_PADDING_SIZE 8
108
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109/* motion estimation type, EPZS by default */
110enum Motion_Est_ID {
101bea5f 111 ME_ZERO = 1,
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112 ME_FULL,
113 ME_LOG,
114 ME_PHODS,
115 ME_EPZS,
116 ME_X1
117};
118
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119typedef struct RcOverride{
120 int start_frame;
121 int end_frame;
122 int qscale; // if this is 0 then quality_factor will be used instead
123 float quality_factor;
124} RcOverride;
125
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126/* only for ME compatiblity with old apps */
127extern int motion_estimation_method;
128
e4986da9 129/* ME algos sorted by quality */
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130static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
131 ME_X1, ME_EPZS, ME_FULL };
de6d9b64 132
28db7fce 133
4e00e76b 134#define FF_MAX_B_FRAMES 8
9dbcbd92 135
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136/* encoding support
137 these flags can be passed in AVCodecContext.flags before initing
138 Note: note not everything is supported yet
139*/
de6d9b64 140
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141#define CODEC_FLAG_HQ 0x0001 ///< brute force MB-type decission mode (slow)
142#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
143#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed
144#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
145#define CODEC_FLAG_GMC 0x0020 ///< use GMC
146#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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147/* parent program gurantees that the input for b-frame containing streams is not written to
148 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 149#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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150#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
151#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
152#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
153#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
154#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
155#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
156#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 157 of only at frame boundaries */
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158#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
159#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
160#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay / will fail on b frames
161#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
162#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
163#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
164#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 165/* Fx : Flag for h263+ extra options */
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166#define CODEC_FLAG_H263P_AIC 0x01000000 ///< Advanced intra coding
167#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
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168/* For advanced prediction mode, we reuse the 4MV flag */
169/* Unsupported options :
170 * Syntax Arithmetic coding (SAC)
171 * Deblocking filter internal loop
172 * Slice structured
173 * Reference Picture Selection
174 * Independant Segment Decoding
175 * Alternative Inter * VLC
176 * Modified Quantization */
177/* /Fx */
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178/* codec capabilities */
179
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180#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
181#define CODEC_CAP_DR1 0x0002 ///< direct rendering method 1
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182/* if 'parse_only' field is true, then avcodec_parse_frame() can be
183 used */
184#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 185#define CODEC_CAP_TRUNCATED 0x0008
bf89e6b1 186
a5dbb247 187#define FRAME_RATE_BASE 10010
de6d9b64 188
492cd3a9 189#define FF_COMMON_FRAME \
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190 uint8_t *data[4];\
191 int linesize[4];\
192 /**\
32db2b1d 193 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 194 * this isnt used by lavc unless the default get/release_buffer() is used\
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195 * - encoding: \
196 * - decoding: \
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197 */\
198 uint8_t *base[4];\
199 /**\
200 * 1 -> keyframe, 0-> not\
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201 * - encoding: set by lavc\
202 * - decoding: set by lavc\
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203 */\
204 int key_frame;\
205\
206 /**\
207 * picture type of the frame, see ?_TYPE below\
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208 * - encoding: set by lavc for coded_picture (and set by user for input)\
209 * - decoding: set by lavc\
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210 */\
211 int pict_type;\
212\
213 /**\
214 * presentation timestamp in micro seconds (time when frame should be shown to user)\
215 * if 0 then the frame_rate will be used as reference\
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216 * - encoding: MUST be set by user\
217 * - decoding: set by lavc\
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218 */\
219 long long int pts;\
220\
221 /**\
222 * picture number in bitstream order.\
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223 * - encoding: set by\
224 * - decoding: set by lavc\
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225 */\
226 int coded_picture_number;\
227 /**\
1e491e29 228 * picture number in display order.\
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229 * - encoding: set by\
230 * - decoding: set by lavc\
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231 */\
232 int display_picture_number;\
233\
234 /**\
235 * quality (between 1 (good) and 31 (bad)) \
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236 * - encoding: set by lavc for coded_picture (and set by user for input)\
237 * - decoding: set by lavc\
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238 */\
239 float quality; \
240\
241 /**\
242 * buffer age (1->was last buffer and dint change, 2->..., ...).\
243 * set to something large if the buffer has not been used yet \
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244 * - encoding: unused\
245 * - decoding: MUST be set by get_buffer()\
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246 */\
247 int age;\
248\
249 /**\
250 * is this picture used as reference\
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251 * - encoding: unused\
252 * - decoding: set by lavc (before get_buffer() call))\
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253 */\
254 int reference;\
255\
256 /**\
257 * QP table\
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258 * - encoding: unused\
259 * - decoding: set by lavc\
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260 */\
261 int8_t *qscale_table;\
262 /**\
263 * QP store stride\
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264 * - encoding: unused\
265 * - decoding: set by lavc\
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266 */\
267 int qstride;\
268\
269 /**\
270 * mbskip_table[mb]>=1 if MB didnt change\
271 * stride= mb_width = (width+15)>>4\
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272 * - encoding: unused\
273 * - decoding: set by lavc\
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274 */\
275 uint8_t *mbskip_table;\
276\
277 /**\
278 * for some private data of the user\
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279 * - encoding: unused\
280 * - decoding: set by user\
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281 */\
282 void *opaque;\
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283\
284 /**\
285 * error\
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286 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
287 * - decoding: unused\
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288 */\
289 uint64_t error[4];\
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290\
291 /**\
292 * type of the buffer (to keep track of who has to dealloc data[*])\
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293 * - encoding: set by the one who allocs it\
294 * - decoding: set by the one who allocs it\
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295 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
296 */\
297 int type;\
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298 \
299 /**\
300 * when decoding, this signal how much the picture must be delayed.\
301 * extra_delay = repeat_pict / (2*fps)\
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302 * - encoding: unused\
303 * - decoding: set by lavc\
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304 */\
305 int repeat_pict;
306
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307
308#define FF_BUFFER_TYPE_INTERNAL 1
309#define FF_BUFFER_TYPE_USER 2 // Direct rendering buffers
310#define FF_BUFFER_TYPE_SHARED 4 // input frame for encoding(wont be dealloced)
311
1e491e29 312
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313#define FF_I_TYPE 1 // Intra
314#define FF_P_TYPE 2 // Predicted
315#define FF_B_TYPE 3 // Bi-dir predicted
316#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
1e491e29 317
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318typedef struct AVFrame {
319 FF_COMMON_FRAME
320} AVFrame;
1e491e29 321
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322
323/**
324 * main external api structure.
325 */
de6d9b64 326typedef struct AVCodecContext {
b71901e6 327 /**
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328 * the average bitrate.
329 * - encoding: set by user. unused for constant quantizer encoding
330 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 331 */
de6d9b64 332 int bit_rate;
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333
334 /**
64863965 335 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 336 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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337 * - encoding: set by user. unused for constant quantizer encoding
338 * - decoding: unused
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339 */
340 int bit_rate_tolerance;
341
342 /**
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343 * CODEC_FLAG_*.
344 * - encoding: set by user.
345 * - decoding: set by user.
b71901e6 346 */
de6d9b64 347 int flags;
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348
349 /**
350 * some codecs needs additionnal format info. It is stored here
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351 * - encoding: set by user.
352 * - decoding: set by lavc. (FIXME is this ok?)
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353 */
354 int sub_id;
355
356 /**
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357 * motion estimation algorithm used for video coding.
358 * - encoding: MUST be set by user.
359 * - decoding: unused
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360 */
361 int me_method;
362
363 /**
64863965 364 * some codecs need / can use extra-data like huffman tables.
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365 * mjpeg: huffman tables
366 * rv10: additional flags
b704e742 367 * mpeg4: global headers (they can be in the bitstream or here)
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368 * - encoding: set/allocated/freed by lavc.
369 * - decoding: set/allocated/freed by user.
b71901e6 370 */
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371 void *extradata;
372 int extradata_size;
373
de6d9b64 374 /* video only */
b71901e6 375 /**
64863965 376 * frames per sec multiplied by FRAME_RATE_BASE.
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377 * for variable fps this is the precission, so if the timestamps
378 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
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379 * - encoding: MUST be set by user
380 * - decoding: set by lavc. 0 or the frame_rate if available
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381 */
382 int frame_rate;
383
384 /**
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385 * width / height.
386 * - encoding: MUST be set by user.
387 * - decoding: set by user, some codecs might override / change it during playback
b71901e6 388 */
de6d9b64 389 int width, height;
b71901e6 390
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391#define FF_ASPECT_SQUARE 1
392#define FF_ASPECT_4_3_625 2
393#define FF_ASPECT_4_3_525 3
394#define FF_ASPECT_16_9_625 4
395#define FF_ASPECT_16_9_525 5
e769f053 396#define FF_ASPECT_EXTENDED 15
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397
398 /**
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399 * the number of pictures in a group of pitures, or 0 for intra_only.
400 * - encoding: set by user.
401 * - decoding: unused
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402 */
403 int gop_size;
404
405 /**
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406 * pixel format, see PIX_FMT_xxx.
407 * - encoding: unused
408 * - decoding: set by lavc.
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409 */
410 enum PixelFormat pix_fmt;
2ec23b6d 411
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412 /**
413 * if non NULL, 'draw_horiz_band' is called by the libavcodec
414 * decoder to draw an horizontal band. It improve cache usage. Not
415 * all codecs can do that. You must check the codec capabilities
416 * before
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417 * - encoding: unused
418 * - decoding: set by user.
b71901e6 419 */
bf89e6b1 420 void (*draw_horiz_band)(struct AVCodecContext *s,
0c1a9eda 421 uint8_t **src_ptr, int linesize,
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422 int y, int width, int height);
423
de6d9b64 424 /* audio only */
64863965 425 int sample_rate; ///< samples per sec
de6d9b64 426 int channels;
64863965 427 int sample_fmt; ///< sample format, currenly unused
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428
429 /* the following data should not be initialized */
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430 int frame_size; ///< in samples, initialized when calling 'init'
431 int frame_number; ///< audio or video frame number
432 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 433
b71901e6 434 /**
b71901e6 435 * number of frames the decoded output will be delayed relative to
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436 * the encoded input.
437 * - encoding: set by lavc.
438 * - decoding: unused
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439 */
440 int delay;
1ff662cc 441
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442 /* - encoding parameters */
443 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
444 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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445
446 /**
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447 * minimum quantizer.
448 * - encoding: set by user.
449 * - decoding: unused
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450 */
451 int qmin;
452
453 /**
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454 * maximum quantizer.
455 * - encoding: set by user.
456 * - decoding: unused
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457 */
458 int qmax;
459
460 /**
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461 * maximum quantizer difference etween frames.
462 * - encoding: set by user.
463 * - decoding: unused
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464 */
465 int max_qdiff;
466
467 /**
64863965 468 * maximum number of b frames between non b frames.
b71901e6 469 * note: the output will be delayed by max_b_frames+1 relative to the input
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470 * - encoding: set by user.
471 * - decoding: unused
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472 */
473 int max_b_frames;
474
475 /**
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476 * qscale factor between ip and b frames.
477 * - encoding: set by user.
478 * - decoding: unused
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479 */
480 float b_quant_factor;
481
482 /** obsolete FIXME remove */
483 int rc_strategy;
8b4c7dbc 484 int b_frame_strategy;
9dbcbd92 485
b71901e6 486 /**
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487 * hurry up amount.
488 * - encoding: unused
489 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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490 */
491 int hurry_up;
2417652e 492
de6d9b64 493 struct AVCodec *codec;
b71901e6 494
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495 void *priv_data;
496
644d98a4 497 /* The following data is for RTP friendly coding */
1f6b6e50 498 /* By now only H.263/H.263+/MPEG4 coder honours this */
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499 int rtp_mode; /* 1 for activate RTP friendly-mode */
500 /* highers numbers represent more error-prone */
501 /* enviroments, by now just "1" exist */
502
503 int rtp_payload_size; /* The size of the RTP payload, the coder will */
504 /* do it's best to deliver a chunk with size */
505 /* below rtp_payload_size, the chunk will start */
506 /* with a start code on some codecs like H.263 */
507 /* This doesn't take account of any particular */
508 /* headers inside the transmited RTP payload */
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509
510
511 /* The RTP callcack: This function is called */
512 /* every time the encoder as a packet to send */
513 /* Depends on the encoder if the data starts */
514 /* with a Start Code (it should) H.263 does */
515 void (*rtp_callback)(void *data, int size, int packet_number);
516
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517 /* statistics, used for 2-pass encoding */
518 int mv_bits;
519 int header_bits;
520 int i_tex_bits;
521 int p_tex_bits;
522 int i_count;
523 int p_count;
524 int skip_count;
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525 int misc_bits;
526
527 /**
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528 * number of bits used for the previously encoded frame.
529 * - encoding: set by lavc
530 * - decoding: - for audio - bits_per_sample
b71901e6 531 */
098eefe1 532 int frame_bits;
644d98a4 533
b71901e6 534 /**
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535 * private data of the user, can be used to carry app specific stuff.
536 * - encoding: set by user
537 * - decoding: set by user
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538 */
539 void *opaque;
540
de6d9b64 541 char codec_name[32];
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542 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
543 enum CodecID codec_id; /* see CODEC_ID_xxx */
64863965 544 unsigned int codec_tag; ///< codec tag, only used if unknown codec
92ba5ffb 545
b71901e6 546 /**
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547 * workaround bugs in encoders which sometimes cannot be detected automatically.
548 * - encoding: unused
549 * - decoding: set by user
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550 */
551 int workaround_bugs;
64863965 552#define FF_BUG_AUTODETECT 1 ///< autodetection
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553#define FF_BUG_OLD_MSMPEG4 2
554#define FF_BUG_XVID_ILACE 4
555#define FF_BUG_UMP4 8
556#define FF_BUG_NO_PADDING 16
557#define FF_BUG_AC_VLC 32
03e93d35 558#define FF_BUG_QPEL_CHROMA 64
db794953 559#define FF_BUG_STD_QPEL 128
36df8805 560#define FF_BUG_QPEL_CHROMA2 256
c40c3482 561#define FF_BUG_DIRECT_BLOCKSIZE 512
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562//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
563
b71901e6 564 /**
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565 * luma single coeff elimination threshold.
566 * - encoding: set by user
567 * - decoding: unused
b71901e6 568 */
1f6b6e50 569 int luma_elim_threshold;
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570
571 /**
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572 * chroma single coeff elimination threshold.
573 * - encoding: set by user
574 * - decoding: unused
b71901e6 575 */
1f6b6e50 576 int chroma_elim_threshold;
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577
578 /**
64863965
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579 * strictly follow the std (MPEG4, ...).
580 * - encoding: set by user
581 * - decoding: unused
b71901e6
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582 */
583 int strict_std_compliance;
584
585 /**
64863965 586 * qscale offset between ip and b frames.
b3a391e8
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587 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
588 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
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589 * - encoding: set by user.
590 * - decoding: unused
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591 */
592 float b_quant_offset;
593
594 /**
ce3bcaed 595 * error resilience higher values will detect more errors but may missdetect
64863965
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596 * some more or less valid parts as errors.
597 * - encoding: unused
598 * - decoding: set by user
b71901e6 599 */
1f6b6e50 600 int error_resilience;
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601#define FF_ER_CAREFULL 1
602#define FF_ER_COMPLIANT 2
603#define FF_ER_AGGRESSIVE 3
604#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 605
6b72ac63 606 /**
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607 * called at the beginning of each frame to get a buffer for it.
608 * if pic.reference is set then the frame will be read later by lavc
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609 * - encoding: unused
610 * - decoding: set by lavc, user can override
b71901e6 611 */
492cd3a9 612 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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613
614 /**
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615 * called to release buffers which where allocated with get_buffer.
616 * a released buffer can be reused in get_buffer()
617 * pic.data[*] must be set to NULL
64863965
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618 * - encoding: unused
619 * - decoding: set by lavc, user can override
b71901e6 620 */
492cd3a9 621 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 622
b71901e6 623 /**
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624 * is 1 if the decoded stream contains b frames, 0 otherwise.
625 * - encoding: unused
626 * - decoding: set by lavc
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627 */
628 int has_b_frames;
b71901e6 629
64863965 630 int block_align; ///< used by some WAV based audio codecs
ce980a95 631
64863965 632 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
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633 (function avcodec_parse_frame()). The frame
634 data is returned. Only MPEG codecs support this now. */
ce980a95 635
b71901e6 636 /**
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637 * 0-> h263 quant 1-> mpeg quant.
638 * - encoding: set by user.
639 * - decoding: unused
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640 */
641 int mpeg_quant;
ce980a95 642
b71901e6 643 /**
64863965
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644 * pass1 encoding statistics output buffer.
645 * - encoding: set by lavc
646 * - decoding: unused
b71901e6 647 */
64863965 648 char *stats_out;
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649
650 /**
651 * pass2 encoding statistics input buffer.
652 * concatenated stuff from stats_out of pass1 should be placed here
64863965
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653 * - encoding: allocated/set/freed by user
654 * - decoding: unused
b71901e6
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655 */
656 char *stats_in;
657
658 /**
64863965 659 * ratecontrol qmin qmax limiting method.
b71901e6 660 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
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661 * - encoding: set by user.
662 * - decoding: unused
b71901e6 663 */
ce980a95 664 float rc_qsquish;
b71901e6 665
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666 float rc_qmod_amp;
667 int rc_qmod_freq;
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668
669 /**
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670 * ratecontrol override, see RcOverride.
671 * - encoding: allocated/set/freed by user.
672 * - decoding: unused
b71901e6 673 */
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674 RcOverride *rc_override;
675 int rc_override_count;
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676
677 /**
64863965
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678 * rate control equation.
679 * - encoding: set by user
680 * - decoding: unused
b71901e6 681 */
ce980a95 682 char *rc_eq;
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683
684 /**
64863965
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685 * maximum bitrate.
686 * - encoding: set by user.
687 * - decoding: unused
b71901e6 688 */
ce980a95 689 int rc_max_rate;
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690
691 /**
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692 * minimum bitrate.
693 * - encoding: set by user.
694 * - decoding: unused
b71901e6 695 */
ce980a95 696 int rc_min_rate;
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697
698 /**
64863965
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699 * decoder bitstream buffer size.
700 * - encoding: set by user.
701 * - decoding: unused
b71901e6 702 */
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703 int rc_buffer_size;
704 float rc_buffer_aggressivity;
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705
706 /**
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707 * qscale factor between p and i frames.
708 * - encoding: set by user.
709 * - decoding: unused
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710 */
711 float i_quant_factor;
712
713 /**
64863965 714 * qscale offset between p and i frames.
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715 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
716 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
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717 * - encoding: set by user.
718 * - decoding: unused
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719 */
720 float i_quant_offset;
721
722 /**
64863965
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723 * initial complexity for pass1 ratecontrol.
724 * - encoding: set by user.
725 * - decoding: unused
b71901e6 726 */
ce980a95 727 float rc_initial_cplx;
917e06c8 728
b71901e6 729 /**
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730 * dct algorithm, see FF_DCT_* below.
731 * - encoding: set by user
732 * - decoding: unused
b71901e6 733 */
28db7fce 734 int dct_algo;
c7e07931 735#define FF_DCT_AUTO 0
28db7fce 736#define FF_DCT_FASTINT 1
c7e07931
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737#define FF_DCT_INT 2
738#define FF_DCT_MMX 3
739#define FF_DCT_MLIB 4
05c4072b 740#define FF_DCT_ALTIVEC 5
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741
742 /**
64863965
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743 * luminance masking (0-> disabled).
744 * - encoding: set by user
745 * - decoding: unused
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746 */
747 float lumi_masking;
748
749 /**
64863965
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750 * temporary complexity masking (0-> disabled).
751 * - encoding: set by user
752 * - decoding: unused
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753 */
754 float temporal_cplx_masking;
755
756 /**
64863965
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757 * spatial complexity masking (0-> disabled).
758 * - encoding: set by user
759 * - decoding: unused
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760 */
761 float spatial_cplx_masking;
762
763 /**
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764 * p block masking (0-> disabled).
765 * - encoding: set by user
766 * - decoding: unused
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767 */
768 float p_masking;
15415af4 769
5e746b99 770 /**
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771 * darkness masking (0-> disabled).
772 * - encoding: set by user
773 * - decoding: unused
5e746b99
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774 */
775 float dark_masking;
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776
777 /**
64863965 778 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
0c2dd16e 779 * this is used to workaround some encoder bugs
64863965
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780 * - encoding: unused
781 * - decoding: set by user, will be converted to upper case by lavc during init
0c2dd16e
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782 */
783 int fourcc;
5e746b99 784
2ad1516a 785 /**
64863965
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786 * idct algorithm, see FF_IDCT_* below.
787 * - encoding: set by user
788 * - decoding: set by user
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789 */
790 int idct_algo;
791#define FF_IDCT_AUTO 0
792#define FF_IDCT_INT 1
793#define FF_IDCT_SIMPLE 2
794#define FF_IDCT_SIMPLEMMX 3
795#define FF_IDCT_LIBMPEG2MMX 4
796#define FF_IDCT_PS2 5
797#define FF_IDCT_MLIB 6
798#define FF_IDCT_ARM 7
05c4072b 799#define FF_IDCT_ALTIVEC 8
2ad1516a 800
144f0625 801 /**
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802 * slice count.
803 * - encoding: set by lavc
804 * - decoding: set by user (or 0)
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805 */
806 int slice_count;
807 /**
64863965
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808 * slice offsets in the frame in bytes.
809 * - encoding: set/allocated by lavc
810 * - decoding: set/allocated by user (or NULL)
144f0625
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811 */
812 int *slice_offset;
813
4d2858de 814 /**
64863965
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815 * error concealment flags.
816 * - encoding: unused
817 * - decoding: set by user
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818 */
819 int error_concealment;
820#define FF_EC_GUESS_MVS 1
821#define FF_EC_DEBLOCK 2
822
6b72ac63 823 /**
8350df97
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824 * dsp_mask could be used to disable unwanted
825 * CPU features (i.e. MMX, SSE. ...)
826 */
827 unsigned dsp_mask;
11f18faf
MN
828
829 /**
64863965
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830 * bits per sample/pixel from the demuxer (needed for huffyuv).
831 * - encoding: set by lavc
832 * - decoding: set by user
11f18faf
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833 */
834 int bits_per_sample;
835
836 /**
64863965
MN
837 * prediction method (needed for huffyuv).
838 * - encoding: set by user
839 * - decoding: unused
11f18faf
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840 */
841 int prediction_method;
842#define FF_PRED_LEFT 0
843#define FF_PRED_PLANE 1
844#define FF_PRED_MEDIAN 2
5d3cea3a
MN
845
846 /**
64863965
MN
847 * aspect ratio (0 if unknown).
848 * - encoding: set by user.
849 * - decoding: set by lavc.
5d3cea3a
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850 */
851 float aspect_ratio;
1e491e29
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852
853 /**
64863965
MN
854 * the picture in the bitstream.
855 * - encoding: set by lavc
856 * - decoding: set by lavc
1e491e29 857 */
492cd3a9 858 AVFrame *coded_frame;
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MN
859
860 /**
64863965
MN
861 * debug.
862 * - encoding: set by user.
863 * - decoding: set by user.
c8c437bc
MN
864 */
865 int debug;
866#define FF_DEBUG_PICT_INFO 1
867#define FF_DEBUG_RC 2
868#define FF_DEBUG_BITSTREAM 4
869#define FF_DEBUG_MB_TYPE 8
870#define FF_DEBUG_QP 16
871#define FF_DEBUG_MV 32
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872#define FF_DEBUG_VIS_MV 0x00000040
873#define FF_DEBUG_SKIP 0x00000080
874#define FF_DEBUG_STARTCODE 0x00000100
875#define FF_DEBUG_PTS 0x00000200
140cb663
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876
877 /**
64863965
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878 * error.
879 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
880 * - decoding: unused
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881 */
882 uint64_t error[4];
17a70fde
MN
883
884 /**
64863965
MN
885 * minimum MB quantizer.
886 * - encoding: set by user.
887 * - decoding: unused
17a70fde
MN
888 */
889 int mb_qmin;
890
891 /**
64863965
MN
892 * maximum MB quantizer.
893 * - encoding: set by user.
894 * - decoding: unused
17a70fde
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895 */
896 int mb_qmax;
1457ab52
MN
897
898 /**
64863965
MN
899 * motion estimation compare function.
900 * - encoding: set by user.
901 * - decoding: unused
1457ab52
MN
902 */
903 int me_cmp;
904 /**
64863965
MN
905 * subpixel motion estimation compare function.
906 * - encoding: set by user.
907 * - decoding: unused
1457ab52
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908 */
909 int me_sub_cmp;
910 /**
64863965
MN
911 * macroblock compare function (not supported yet).
912 * - encoding: set by user.
913 * - decoding: unused
1457ab52
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914 */
915 int mb_cmp;
916#define FF_CMP_SAD 0
917#define FF_CMP_SSE 1
918#define FF_CMP_SATD 2
919#define FF_CMP_DCT 3
920#define FF_CMP_PSNR 4
921#define FF_CMP_BIT 5
922#define FF_CMP_RD 6
923#define FF_CMP_ZERO 7
924#define FF_CMP_CHROMA 256
925
926 /**
64863965
MN
927 * ME diamond size & shape.
928 * - encoding: set by user.
929 * - decoding: unused
1457ab52
MN
930 */
931 int dia_size;
b07a5980
MN
932
933 /**
64863965
MN
934 * amount of previous MV predictors (2a+1 x 2a+1 square).
935 * - encoding: set by user.
936 * - decoding: unused
b07a5980
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937 */
938 int last_predictor_count;
70ac76c0 939
f5fb6b34 940 /**
64863965
MN
941 * pre pass for motion estimation.
942 * - encoding: set by user.
943 * - decoding: unused
f5fb6b34
MN
944 */
945 int pre_me;
b07a5980 946
70ac76c0 947 /**
64863965
MN
948 * motion estimation pre pass compare function.
949 * - encoding: set by user.
950 * - decoding: unused
70ac76c0
MN
951 */
952 int me_pre_cmp;
826f429a 953
70ac76c0 954 /**
64863965
MN
955 * ME pre pass diamond size & shape.
956 * - encoding: set by user.
957 * - decoding: unused
70ac76c0
MN
958 */
959 int pre_dia_size;
960
826f429a 961 /**
64863965
MN
962 * subpel ME quality.
963 * - encoding: set by user.
964 * - decoding: unused
826f429a
MN
965 */
966 int me_subpel_quality;
967
a33c7159 968 /**
64863965 969 * callback to negotiate the pixelFormat.
a33c7159
MN
970 * @param fmt is the list of formats which are supported by the codec,
971 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
972 * the first is allways the native one
973 * @return the choosen format
64863965
MN
974 * - encoding: unused
975 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159
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976 */
977 enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
e2f9490e
FB
978
979 /**
980 * DTG active format information (additionnal aspect ratio
981 * information only used in DVB MPEG2 transport streams). 0 if
982 * not set.
983 *
64863965
MN
984 * - encoding: unused.
985 * - decoding: set by decoder
e2f9490e
FB
986 */
987 int dtg_active_format;
988#define FF_DTG_AFD_SAME 8
989#define FF_DTG_AFD_4_3 9
990#define FF_DTG_AFD_16_9 10
991#define FF_DTG_AFD_14_9 11
992#define FF_DTG_AFD_4_3_SP_14_9 13
993#define FF_DTG_AFD_16_9_SP_14_9 14
994#define FF_DTG_AFD_SP_4_3 15
995
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MN
996 int me_range;
997 /**
998 * Maximum motion estimation search range in subpel units.
999 * if 0 then no limit
1000 *
64863965
MN
1001 * - encoding: set by user.
1002 * - decoding: unused.
ebbcdc9a
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1003 */
1004
de6d9b64
FB
1005} AVCodecContext;
1006
97d96aaa
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1007//void avcodec_getopt(AVCodecContext* avctx, const char* str, avc_config_t** config);
1008
64863965
MN
1009/**
1010 * AVOption.
1011 */
97d96aaa
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1012typedef struct AVOption {
1013 /** options' name */
1014 const char *name; /* if name is NULL, it indicates a link to next */
1015 /** short English text help */
1016 const char *help;
1017 /** offset to context structure where the parsed value should be stored */
1018 int offset;
1019 /** options' type */
1020 int type;
64863965
MN
1021#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1022#define FF_OPT_TYPE_DOUBLE 2 ///< double
1023#define FF_OPT_TYPE_INT 3 ///< integer
1024#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1025#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1026//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1027#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1028#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1029 /** min value (min == max -> no limits) */
1030 double min;
1031 /** maximum value for double/int */
1032 double max;
1033 /** default boo [0,1]l/double/int value */
1034 double defval;
1035 /**
1036 * default string value (with optional semicolon delimited extra option-list
1037 * i.e. option1;option2;option3
1038 * defval might select other then first argument as default
1039 */
1040 const char *defstr;
1041 const struct AVOption *sub; /* used when name is NULL */
1042 /* when it's NULL return to previous level (or finish reading) */
1043#define FF_OPT_MAX_DEPTH 10
1044} AVOption;
1045
64863965
MN
1046/**
1047 * AVCodec.
1048 */
de6d9b64 1049typedef struct AVCodec {
18f77016 1050 const char *name;
de6d9b64
FB
1051 int type;
1052 int id;
1053 int priv_data_size;
1054 int (*init)(AVCodecContext *);
0c1a9eda 1055 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1056 int (*close)(AVCodecContext *);
0fd90455 1057 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1058 uint8_t *buf, int buf_size);
bf89e6b1 1059 int capabilities;
97d96aaa 1060 const AVOption *options;
de6d9b64
FB
1061 struct AVCodec *next;
1062} AVCodec;
1063
97d96aaa 1064/**
d7425f59
MN
1065 * four components are given, that's all.
1066 * the last component is alpha
1067 */
de6d9b64 1068typedef struct AVPicture {
0c1a9eda 1069 uint8_t *data[4];
d7425f59 1070 int linesize[4];
de6d9b64
FB
1071} AVPicture;
1072
1073extern AVCodec ac3_encoder;
1074extern AVCodec mp2_encoder;
9d36bdc9 1075extern AVCodec mp3lame_encoder;
81e0d0b4 1076extern AVCodec oggvorbis_encoder;
de6d9b64
FB
1077extern AVCodec mpeg1video_encoder;
1078extern AVCodec h263_encoder;
1079extern AVCodec h263p_encoder;
1080extern AVCodec rv10_encoder;
1081extern AVCodec mjpeg_encoder;
bf89e6b1 1082extern AVCodec mpeg4_encoder;
84afee34
MN
1083extern AVCodec msmpeg4v1_encoder;
1084extern AVCodec msmpeg4v2_encoder;
1085extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1086extern AVCodec wmv1_encoder;
1087extern AVCodec wmv2_encoder;
11f18faf 1088extern AVCodec huffyuv_encoder;
de6d9b64
FB
1089
1090extern AVCodec h263_decoder;
bf89e6b1 1091extern AVCodec mpeg4_decoder;
84afee34
MN
1092extern AVCodec msmpeg4v1_decoder;
1093extern AVCodec msmpeg4v2_decoder;
1094extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1095extern AVCodec wmv1_decoder;
0151a6f5 1096extern AVCodec wmv2_decoder;
de6d9b64
FB
1097extern AVCodec mpeg_decoder;
1098extern AVCodec h263i_decoder;
1099extern AVCodec rv10_decoder;
be8ffec9 1100extern AVCodec svq1_decoder;
020fcc94
FB
1101extern AVCodec dvvideo_decoder;
1102extern AVCodec dvaudio_decoder;
bc8d1857
FB
1103extern AVCodec wmav1_decoder;
1104extern AVCodec wmav2_decoder;
4e66ab3b 1105extern AVCodec mjpeg_decoder;
b135d9fb 1106extern AVCodec mjpegb_decoder;
4b1f4f23 1107extern AVCodec mp2_decoder;
a96b68b7 1108extern AVCodec mp3_decoder;
3f95e843
FR
1109extern AVCodec mace3_decoder;
1110extern AVCodec mace6_decoder;
11f18faf 1111extern AVCodec huffyuv_decoder;
3aca208a 1112extern AVCodec oggvorbis_decoder;
f70f7c6d 1113extern AVCodec cyuv_decoder;
de6d9b64 1114
a96b68b7
FB
1115/* pcm codecs */
1116#define PCM_CODEC(id, name) \
1117extern AVCodec name ## _decoder; \
f11d3f23 1118extern AVCodec name ## _encoder
a96b68b7
FB
1119
1120PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1121PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1122PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1123PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1124PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1125PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1126PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1127PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1128
0147f198
FR
1129/* adpcm codecs */
1130
1131PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1132PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1133PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1134
a96b68b7
FB
1135#undef PCM_CODEC
1136
1137/* dummy raw video codec */
de6d9b64
FB
1138extern AVCodec rawvideo_codec;
1139
1140/* the following codecs use external GPL libs */
de6d9b64
FB
1141extern AVCodec ac3_decoder;
1142
1143/* resample.c */
1144
1145struct ReSampleContext;
1146
1147typedef struct ReSampleContext ReSampleContext;
1148
1149ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1150 int output_rate, int input_rate);
1151int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1152void audio_resample_close(ReSampleContext *s);
1153
1154/* YUV420 format is assumed ! */
1155
1156struct ImgReSampleContext;
1157
1158typedef struct ImgReSampleContext ImgReSampleContext;
1159
1160ImgReSampleContext *img_resample_init(int output_width, int output_height,
1161 int input_width, int input_height);
ab6d194a
MN
1162
1163ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1164 int iwidth, int iheight,
1165 int topBand, int bottomBand,
1166 int leftBand, int rightBand);
1167
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1168void img_resample(ImgReSampleContext *s,
1169 AVPicture *output, AVPicture *input);
1170
1171void img_resample_close(ImgReSampleContext *s);
1172
0c1a9eda 1173int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1174 int pix_fmt, int width, int height);
219b06c6 1175int avpicture_get_size(int pix_fmt, int width, int height);
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1176void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1177const char *avcodec_get_pix_fmt_name(int pix_fmt);
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1178
1179/* convert among pixel formats */
1180int img_convert(AVPicture *dst, int dst_pix_fmt,
1181 AVPicture *src, int pix_fmt,
1182 int width, int height);
1183
1184/* deinterlace a picture */
1185int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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1186 int pix_fmt, int width, int height);
1187
1188/* external high level API */
1189
1190extern AVCodec *first_avcodec;
1191
156e5023 1192/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1193unsigned avcodec_version(void);
8bceb6af 1194/* returns LIBAVCODEC_BUILD constant */
51a49663 1195unsigned avcodec_build(void);
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1196void avcodec_init(void);
1197
1198void register_avcodec(AVCodec *format);
1199AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1200AVCodec *avcodec_find_encoder_by_name(const char *name);
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1201AVCodec *avcodec_find_decoder(enum CodecID id);
1202AVCodec *avcodec_find_decoder_by_name(const char *name);
1203void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1204
1e491e29 1205void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1206AVCodecContext *avcodec_alloc_context(void);
492cd3a9 1207AVFrame *avcodec_alloc_frame(void);
1e491e29 1208
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1209int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1210void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1e491e29 1211
de6d9b64 1212int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
0c1a9eda 1213int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 1214 int *frame_size_ptr,
0c1a9eda 1215 uint8_t *buf, int buf_size);
492cd3a9 1216int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 1217 int *got_picture_ptr,
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1218 uint8_t *buf, int buf_size);
1219int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 1220 int *data_size_ptr,
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1221 uint8_t *buf, int buf_size);
1222int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 1223 const short *samples);
0c1a9eda 1224int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 1225 const AVFrame *pict);
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1226
1227int avcodec_close(AVCodecContext *avctx);
1228
1229void avcodec_register_all(void);
a96b68b7 1230
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1231void avcodec_flush_buffers(AVCodecContext *avctx);
1232
628d601b 1233
628d601b 1234
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1235/**
1236 * Interface for 0.5.0 version
1237 *
1238 * do not even think about it's usage for this moment
1239 */
1240
1241typedef struct {
64863965 1242 /// compressed size used from given memory buffer
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1243 int size;
1244 /// I/P/B frame type
1245 int frame_type;
1246} avc_enc_result_t;
1247
1248/**
1249 * Commands
1250 * order can't be changed - once it was defined
1251 */
1252typedef enum {
1253 // general commands
1254 AVC_OPEN_BY_NAME = 0xACA000,
1255 AVC_OPEN_BY_CODEC_ID,
1256 AVC_OPEN_BY_FOURCC,
1257 AVC_CLOSE,
1258
1259 AVC_FLUSH,
1260 // pin - struct { uint8_t* src, uint_t src_size }
1261 // pout - struct { AVPicture* img, consumed_bytes,
1262 AVC_DECODE,
1263 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1264 // pout - uint_t used_from_dest_size
1265 AVC_ENCODE,
1266
1267 // query/get video commands
1268 AVC_GET_VERSION = 0xACB000,
1269 AVC_GET_WIDTH,
1270 AVC_GET_HEIGHT,
1271 AVC_GET_DELAY,
1272 AVC_GET_QUANT_TABLE,
1273 // ...
1274
1275 // query/get audio commands
1276 AVC_GET_FRAME_SIZE = 0xABC000,
1277
1278 // maybe define some simple structure which
1279 // might be passed to the user - but they can't
1280 // contain any codec specific parts and these
1281 // calls are usualy necessary only few times
1282
1283 // set video commands
1284 AVC_SET_WIDTH = 0xACD000,
1285 AVC_SET_HEIGHT,
1286
1287 // set video encoding commands
1288 AVC_SET_FRAME_RATE = 0xACD800,
1289 AVC_SET_QUALITY,
1290 AVC_SET_HURRY_UP,
1291
1292 // set audio commands
1293 AVC_SET_SAMPLE_RATE = 0xACE000,
1294 AVC_SET_CHANNELS,
1295
1296} avc_cmd_t;
1297
1298/**
1299 * \param handle allocated private structure by libavcodec
1300 * for initialization pass NULL - will be returned pout
1301 * user is supposed to know nothing about its structure
1302 * \param cmd type of operation to be performed
1303 * \param pint input parameter
1304 * \param pout output parameter
1305 *
1306 * \returns command status - eventually for query command it might return
1307 * integer resulting value
1308 */
1309int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1310
544eb99c 1311/* memory */
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1312void *av_malloc(unsigned int size);
1313void *av_mallocz(unsigned int size);
8e1e6f31 1314void *av_realloc(void *ptr, unsigned int size);
544eb99c 1315void av_free(void *ptr);
8e1e6f31 1316char *av_strdup(const char *s);
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1317void __av_freep(void **ptr);
1318#define av_freep(p) __av_freep((void **)(p))
97d96aaa 1319void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
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1320/* for static data only */
1321/* call av_free_static to release all staticaly allocated tables */
628d601b 1322void av_free_static(void);
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1323void *__av_mallocz_static(void** location, unsigned int size);
1324#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
544eb99c 1325
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1326#ifdef __cplusplus
1327}
1328#endif
1329
a96b68b7 1330#endif /* AVCODEC_H */