dumping funny numbers from first zygo i frame header
[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
de6d9b64 14#include "common.h"
5ff85f1d 15#include "rational.h"
de6d9b64 16
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17#define FFMPEG_VERSION_INT 0x000408
18#define FFMPEG_VERSION "0.4.8"
985180a1 19#define LIBAVCODEC_BUILD 4688
4b1f4f23 20
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21#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
22#define LIBAVCODEC_VERSION FFMPEG_VERSION
23
24#define AV_STRINGIFY(s) AV_TOSTRING(s)
25#define AV_TOSTRING(s) #s
26#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
ce2749d2 27
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28enum CodecID {
29 CODEC_ID_NONE,
30 CODEC_ID_MPEG1VIDEO,
dcedf586 31 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 32 CODEC_ID_MPEG2VIDEO_XVMC,
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33 CODEC_ID_H263,
34 CODEC_ID_RV10,
35 CODEC_ID_MP2,
dcedf586 36 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
81e0d0b4 37 CODEC_ID_VORBIS,
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38 CODEC_ID_AC3,
39 CODEC_ID_MJPEG,
b135d9fb 40 CODEC_ID_MJPEGB,
b1e6b355 41 CODEC_ID_LJPEG,
5e83dec4 42 CODEC_ID_SP5X,
bf89e6b1 43 CODEC_ID_MPEG4,
de6d9b64 44 CODEC_ID_RAWVIDEO,
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45 CODEC_ID_MSMPEG4V1,
46 CODEC_ID_MSMPEG4V2,
47 CODEC_ID_MSMPEG4V3,
e1a9dbff 48 CODEC_ID_WMV1,
b50eef3a 49 CODEC_ID_WMV2,
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50 CODEC_ID_H263P,
51 CODEC_ID_H263I,
d4f5d74a 52 CODEC_ID_FLV1,
be8ffec9 53 CODEC_ID_SVQ1,
8b82a956 54 CODEC_ID_SVQ3,
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55 CODEC_ID_DVVIDEO,
56 CODEC_ID_DVAUDIO,
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57 CODEC_ID_WMAV1,
58 CODEC_ID_WMAV2,
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59 CODEC_ID_MACE3,
60 CODEC_ID_MACE6,
11f18faf 61 CODEC_ID_HUFFYUV,
f70f7c6d 62 CODEC_ID_CYUV,
0da71265 63 CODEC_ID_H264,
deabd4fd 64 CODEC_ID_INDEO3,
d86053a4 65 CODEC_ID_VP3,
f44ee2c3 66 CODEC_ID_THEORA,
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67 CODEC_ID_AAC,
68 CODEC_ID_MPEG4AAC,
3d2e8cce 69 CODEC_ID_ASV1,
9b56edf5 70 CODEC_ID_ASV2,
5e20f836 71 CODEC_ID_FFV1,
e2a7bb28 72 CODEC_ID_4XM,
be3564ed 73 CODEC_ID_VCR1,
3aff069b 74 CODEC_ID_CLJR,
c3bf0288 75 CODEC_ID_MDEC,
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76 CODEC_ID_ROQ,
77 CODEC_ID_INTERPLAY_VIDEO,
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78 CODEC_ID_XAN_WC3,
79 CODEC_ID_XAN_WC4,
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80 CODEC_ID_RPZA,
81 CODEC_ID_CINEPAK,
82 CODEC_ID_WS_VQA,
83 CODEC_ID_MSRLE,
84 CODEC_ID_MSVIDEO1,
4120a53a 85 CODEC_ID_IDCIN,
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86
87 /* various pcm "codecs" */
88 CODEC_ID_PCM_S16LE,
89 CODEC_ID_PCM_S16BE,
90 CODEC_ID_PCM_U16LE,
91 CODEC_ID_PCM_U16BE,
92 CODEC_ID_PCM_S8,
93 CODEC_ID_PCM_U8,
94 CODEC_ID_PCM_MULAW,
95 CODEC_ID_PCM_ALAW,
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96
97 /* various adpcm codecs */
98 CODEC_ID_ADPCM_IMA_QT,
99 CODEC_ID_ADPCM_IMA_WAV,
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100 CODEC_ID_ADPCM_IMA_DK3,
101 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 102 CODEC_ID_ADPCM_IMA_WS,
0147f198 103 CODEC_ID_ADPCM_MS,
e2a7bb28 104 CODEC_ID_ADPCM_4XM,
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105 CODEC_ID_ADPCM_XA,
106 CODEC_ID_ADPCM_ADX,
891f64b3 107
108 /* AMR */
109 CODEC_ID_AMR_NB,
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110 CODEC_ID_AMR_WB,
111
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112 /* RealAudio codecs*/
113 CODEC_ID_RA_144,
114 CODEC_ID_RA_288,
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115
116 /* various DPCM codecs */
117 CODEC_ID_ROQ_DPCM,
118 CODEC_ID_INTERPLAY_DPCM,
9937e686 119 CODEC_ID_XAN_DPCM,
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120
121 CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
122 stream (only used by libavformat) */
de6d9b64 123};
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124
125/* CODEC_ID_MP3LAME is absolete */
126#define CODEC_ID_MP3LAME CODEC_ID_MP3
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127
128enum CodecType {
4a663d80 129 CODEC_TYPE_UNKNOWN = -1,
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130 CODEC_TYPE_VIDEO,
131 CODEC_TYPE_AUDIO,
985180a1 132 CODEC_TYPE_DATA,
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133};
134
64863965 135/**
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136 * Pixel format. Notes:
137 *
138 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
139 * color is put together as:
140 * (A << 24) | (R << 16) | (G << 8) | B
141 * This is stored as BGRA on little endian CPU architectures and ARGB on
142 * big endian CPUs.
143 *
144 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
145 * image data is stored in AVFrame.data[0]. The palette is transported in
146 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
147 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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148 * also endian-specific). Note also that the individual RGB palette
149 * components stored in AVFrame.data[1] should be in the range 0..255.
150 * This is important as many custom PAL8 video codecs that were designed
151 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 152 */
de6d9b64 153enum PixelFormat {
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154 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
155 PIX_FMT_YUV422,
156 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
157 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
158 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
159 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 160 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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161 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
162 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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163 PIX_FMT_RGB565, ///< always stored in cpu endianness
164 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 165 PIX_FMT_GRAY8,
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166 PIX_FMT_MONOWHITE, ///< 0 is white
167 PIX_FMT_MONOBLACK, ///< 0 is black
168 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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169 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
170 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
171 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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172 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
173 PIX_FMT_XVMC_MPEG2_IDCT,
dab64ebc 174 PIX_FMT_NB,
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175};
176
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177/* currently unused, may be used if 24/32 bits samples ever supported */
178enum SampleFormat {
64863965 179 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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180};
181
de6d9b64 182/* in bytes */
bc8d1857 183#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 184
d7425f59 185/**
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186 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
187 * this is mainly needed because some optimized bitstream readers read
188 * 32 or 64 bit at once and could read over the end<br>
189 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
190 * MPEG bitstreams could cause overread and segfault
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191 */
192#define FF_INPUT_BUFFER_PADDING_SIZE 8
193
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194/* motion estimation type, EPZS by default */
195enum Motion_Est_ID {
101bea5f 196 ME_ZERO = 1,
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197 ME_FULL,
198 ME_LOG,
199 ME_PHODS,
200 ME_EPZS,
201 ME_X1
202};
203
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204typedef struct RcOverride{
205 int start_frame;
206 int end_frame;
207 int qscale; // if this is 0 then quality_factor will be used instead
208 float quality_factor;
209} RcOverride;
210
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211/* only for ME compatiblity with old apps */
212extern int motion_estimation_method;
213
e4986da9 214/* ME algos sorted by quality */
8d8c0294 215//FIXME remove IMHO
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216static const __attribute__((unused)) int Motion_Est_QTab[] =
217 { ME_ZERO, ME_PHODS, ME_LOG, ME_X1, ME_EPZS, ME_FULL };
de6d9b64 218
28db7fce 219
4e00e76b 220#define FF_MAX_B_FRAMES 8
9dbcbd92 221
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222/* encoding support
223 these flags can be passed in AVCodecContext.flags before initing
224 Note: note not everything is supported yet
225*/
de6d9b64 226
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227#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
228#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed
229#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
230#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 231#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 232#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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233/* parent program gurantees that the input for b-frame containing streams is not written to
234 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 235#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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236#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
237#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
238#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
239#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
240#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
241#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
242#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 243 of only at frame boundaries */
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244#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
245#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 246#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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247#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
248#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
249#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
250#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 251/* Fx : Flag for h263+ extra options */
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252#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
253#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 254#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 255#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
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256/* For advanced prediction mode, we reuse the 4MV flag */
257/* Unsupported options :
258 * Syntax Arithmetic coding (SAC)
259 * Deblocking filter internal loop
260 * Slice structured
261 * Reference Picture Selection
262 * Independant Segment Decoding
263 * Alternative Inter * VLC
264 * Modified Quantization */
265/* /Fx */
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266/* codec capabilities */
267
64863965 268#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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269/**
270 * Codec uses get_buffer() for allocating buffers.
271 * direct rendering method 1
272 */
273#define CODEC_CAP_DR1 0x0002
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274/* if 'parse_only' field is true, then avcodec_parse_frame() can be
275 used */
276#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 277#define CODEC_CAP_TRUNCATED 0x0008
bf89e6b1 278
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279/**
280 * Pan Scan area.
281 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
282 */
283typedef struct AVPanScan{
284 /**
285 * id.
286 * - encoding: set by user.
287 * - decoding: set by lavc
288 */
289 int id;
290
291 /**
292 * width and height in 1/16 pel
293 * - encoding: set by user.
294 * - decoding: set by lavc
295 */
296 int width;
297 int height;
298
299 /**
300 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
301 * - encoding: set by user.
302 * - decoding: set by lavc
303 */
304 int16_t position[3][2];
305}AVPanScan;
306
492cd3a9 307#define FF_COMMON_FRAME \
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308 /**\
309 * pointer to the picture planes.\
310 * this might be different from the first allocated byte\
311 * - encoding: \
312 * - decoding: \
313 */\
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314 uint8_t *data[4];\
315 int linesize[4];\
316 /**\
32db2b1d 317 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 318 * this isnt used by lavc unless the default get/release_buffer() is used\
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319 * - encoding: \
320 * - decoding: \
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321 */\
322 uint8_t *base[4];\
323 /**\
324 * 1 -> keyframe, 0-> not\
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325 * - encoding: set by lavc\
326 * - decoding: set by lavc\
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327 */\
328 int key_frame;\
329\
330 /**\
0da71265 331 * picture type of the frame, see ?_TYPE below.\
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332 * - encoding: set by lavc for coded_picture (and set by user for input)\
333 * - decoding: set by lavc\
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334 */\
335 int pict_type;\
336\
337 /**\
338 * presentation timestamp in micro seconds (time when frame should be shown to user)\
339 * if 0 then the frame_rate will be used as reference\
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340 * - encoding: MUST be set by user\
341 * - decoding: set by lavc\
1e491e29 342 */\
be6784dc 343 int64_t pts;\
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344\
345 /**\
346 * picture number in bitstream order.\
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347 * - encoding: set by\
348 * - decoding: set by lavc\
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349 */\
350 int coded_picture_number;\
351 /**\
1e491e29 352 * picture number in display order.\
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353 * - encoding: set by\
354 * - decoding: set by lavc\
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355 */\
356 int display_picture_number;\
357\
358 /**\
158c7f05 359 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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360 * - encoding: set by lavc for coded_picture (and set by user for input)\
361 * - decoding: set by lavc\
1e491e29 362 */\
158c7f05 363 int quality; \
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364\
365 /**\
366 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 367 * set to INT_MAX if the buffer has not been used yet \
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368 * - encoding: unused\
369 * - decoding: MUST be set by get_buffer()\
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370 */\
371 int age;\
372\
373 /**\
374 * is this picture used as reference\
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375 * - encoding: unused\
376 * - decoding: set by lavc (before get_buffer() call))\
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377 */\
378 int reference;\
379\
380 /**\
381 * QP table\
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382 * - encoding: unused\
383 * - decoding: set by lavc\
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384 */\
385 int8_t *qscale_table;\
386 /**\
387 * QP store stride\
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388 * - encoding: unused\
389 * - decoding: set by lavc\
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390 */\
391 int qstride;\
392\
393 /**\
394 * mbskip_table[mb]>=1 if MB didnt change\
395 * stride= mb_width = (width+15)>>4\
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396 * - encoding: unused\
397 * - decoding: set by lavc\
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398 */\
399 uint8_t *mbskip_table;\
400\
401 /**\
402 * for some private data of the user\
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403 * - encoding: unused\
404 * - decoding: set by user\
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405 */\
406 void *opaque;\
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407\
408 /**\
409 * error\
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410 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
411 * - decoding: unused\
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412 */\
413 uint64_t error[4];\
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414\
415 /**\
416 * type of the buffer (to keep track of who has to dealloc data[*])\
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417 * - encoding: set by the one who allocs it\
418 * - decoding: set by the one who allocs it\
3db320ea 419 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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420 */\
421 int type;\
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422 \
423 /**\
424 * when decoding, this signal how much the picture must be delayed.\
425 * extra_delay = repeat_pict / (2*fps)\
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426 * - encoding: unused\
427 * - decoding: set by lavc\
2ec23b6d 428 */\
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429 int repeat_pict;\
430 \
431 /**\
432 * \
433 */\
434 int qscale_type;\
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435 \
436 /**\
437 * The content of the picture is interlaced.\
438 * - encoding: set by user\
439 * - decoding: set by lavc (default 0)\
440 */\
441 int interlaced_frame;\
442 \
443 /**\
9dad924e 444 * if the content is interlaced, is top field displayed first.\
2744ca9a 445 * - encoding: set by user\
9dad924e 446 * - decoding: set by lavc\
2744ca9a 447 */\
9dad924e 448 int top_field_first;\
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449 \
450 /**\
451 * Pan scan.\
452 * - encoding: set by user\
453 * - decoding: set by lavc\
454 */\
455 AVPanScan *pan_scan;\
456
2ec23b6d 457
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458#define FF_QSCALE_TYPE_MPEG1 0
459#define FF_QSCALE_TYPE_MPEG2 1
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460
461#define FF_BUFFER_TYPE_INTERNAL 1
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462#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
463#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base)
464#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 465
1e491e29 466
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467#define FF_I_TYPE 1 // Intra
468#define FF_P_TYPE 2 // Predicted
469#define FF_B_TYPE 3 // Bi-dir predicted
470#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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471#define FF_SI_TYPE 5
472#define FF_SP_TYPE 6
1e491e29 473
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474/**
475 * Audio Video Frame.
476 */
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477typedef struct AVFrame {
478 FF_COMMON_FRAME
479} AVFrame;
1e491e29 480
14bea432 481#define DEFAULT_FRAME_RATE_BASE 1001000
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482
483/**
484 * main external api structure.
485 */
de6d9b64 486typedef struct AVCodecContext {
b71901e6 487 /**
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488 * the average bitrate.
489 * - encoding: set by user. unused for constant quantizer encoding
490 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 491 */
de6d9b64 492 int bit_rate;
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493
494 /**
64863965 495 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 496 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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497 * - encoding: set by user. unused for constant quantizer encoding
498 * - decoding: unused
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499 */
500 int bit_rate_tolerance;
501
502 /**
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503 * CODEC_FLAG_*.
504 * - encoding: set by user.
505 * - decoding: set by user.
b71901e6 506 */
de6d9b64 507 int flags;
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508
509 /**
510 * some codecs needs additionnal format info. It is stored here
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511 * - encoding: set by user.
512 * - decoding: set by lavc. (FIXME is this ok?)
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513 */
514 int sub_id;
515
516 /**
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517 * motion estimation algorithm used for video coding.
518 * - encoding: MUST be set by user.
519 * - decoding: unused
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520 */
521 int me_method;
522
523 /**
64863965 524 * some codecs need / can use extra-data like huffman tables.
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525 * mjpeg: huffman tables
526 * rv10: additional flags
b704e742 527 * mpeg4: global headers (they can be in the bitstream or here)
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528 * - encoding: set/allocated/freed by lavc.
529 * - decoding: set/allocated/freed by user.
b71901e6 530 */
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531 void *extradata;
532 int extradata_size;
533
de6d9b64 534 /* video only */
b71901e6 535 /**
14bea432 536 * frames per sec multiplied by frame_rate_base.
b71901e6 537 * for variable fps this is the precission, so if the timestamps
14bea432 538 * can be specified in msec precssion then this is 1000*frame_rate_base
64863965
MN
539 * - encoding: MUST be set by user
540 * - decoding: set by lavc. 0 or the frame_rate if available
b71901e6
MN
541 */
542 int frame_rate;
14bea432
MN
543
544 /**
64863965
MN
545 * width / height.
546 * - encoding: MUST be set by user.
95831f48 547 * - decoding: set by user if known, codec should override / dynamically change if needed
b71901e6 548 */
de6d9b64 549 int width, height;
b71901e6 550
2efe097a
MN
551#define FF_ASPECT_SQUARE 1
552#define FF_ASPECT_4_3_625 2
553#define FF_ASPECT_4_3_525 3
554#define FF_ASPECT_16_9_625 4
555#define FF_ASPECT_16_9_525 5
e769f053 556#define FF_ASPECT_EXTENDED 15
b71901e6
MN
557
558 /**
64863965
MN
559 * the number of pictures in a group of pitures, or 0 for intra_only.
560 * - encoding: set by user.
561 * - decoding: unused
b71901e6
MN
562 */
563 int gop_size;
564
565 /**
64863965 566 * pixel format, see PIX_FMT_xxx.
36b58e85
RS
567 * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
568 * conversion is in order. This only works for
569 * codecs with one supported pix_fmt, we should
570 * do something for a generic case as well.
64863965 571 * - decoding: set by lavc.
b71901e6 572 */
e4eadb4b 573 enum PixelFormat pix_fmt;
bdfcbbed
MK
574
575 /**
576 * Frame rate emulation. If not zero lower layer (i.e. format handler)
577 * has to read frames at native frame rate.
578 * - encoding: set by user.
579 * - decoding: unused.
580 */
581 int rate_emu;
582
b71901e6
MN
583 /**
584 * if non NULL, 'draw_horiz_band' is called by the libavcodec
585 * decoder to draw an horizontal band. It improve cache usage. Not
586 * all codecs can do that. You must check the codec capabilities
587 * before
64863965
MN
588 * - encoding: unused
589 * - decoding: set by user.
3bb07d61
MN
590 * @param height the height of the slice
591 * @param y the y position of the slice
592 * @param type 1->top field, 2->bottom field, 3->frame
593 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 594 */
bf89e6b1 595 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 596 const AVFrame *src, int offset[4],
3bb07d61 597 int y, int type, int height);
bf89e6b1 598
de6d9b64 599 /* audio only */
64863965 600 int sample_rate; ///< samples per sec
de6d9b64 601 int channels;
64863965 602 int sample_fmt; ///< sample format, currenly unused
de6d9b64
FB
603
604 /* the following data should not be initialized */
64863965
MN
605 int frame_size; ///< in samples, initialized when calling 'init'
606 int frame_number; ///< audio or video frame number
607 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 608
b71901e6 609 /**
b71901e6 610 * number of frames the decoded output will be delayed relative to
64863965
MN
611 * the encoded input.
612 * - encoding: set by lavc.
613 * - decoding: unused
b71901e6
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614 */
615 int delay;
1ff662cc 616
64863965
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617 /* - encoding parameters */
618 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
619 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
b71901e6
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620
621 /**
64863965
MN
622 * minimum quantizer.
623 * - encoding: set by user.
624 * - decoding: unused
b71901e6
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625 */
626 int qmin;
627
628 /**
64863965
MN
629 * maximum quantizer.
630 * - encoding: set by user.
631 * - decoding: unused
b71901e6
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632 */
633 int qmax;
634
635 /**
64863965
MN
636 * maximum quantizer difference etween frames.
637 * - encoding: set by user.
638 * - decoding: unused
b71901e6
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639 */
640 int max_qdiff;
641
642 /**
64863965 643 * maximum number of b frames between non b frames.
b71901e6 644 * note: the output will be delayed by max_b_frames+1 relative to the input
64863965
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645 * - encoding: set by user.
646 * - decoding: unused
b71901e6
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647 */
648 int max_b_frames;
649
650 /**
64863965
MN
651 * qscale factor between ip and b frames.
652 * - encoding: set by user.
653 * - decoding: unused
b71901e6
MN
654 */
655 float b_quant_factor;
656
657 /** obsolete FIXME remove */
658 int rc_strategy;
8b4c7dbc 659 int b_frame_strategy;
9dbcbd92 660
b71901e6 661 /**
64863965
MN
662 * hurry up amount.
663 * - encoding: unused
664 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
b71901e6
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665 */
666 int hurry_up;
2417652e 667
de6d9b64 668 struct AVCodec *codec;
b71901e6 669
de6d9b64
FB
670 void *priv_data;
671
644d98a4 672 /* The following data is for RTP friendly coding */
1f6b6e50 673 /* By now only H.263/H.263+/MPEG4 coder honours this */
644d98a4
J
674 int rtp_mode; /* 1 for activate RTP friendly-mode */
675 /* highers numbers represent more error-prone */
676 /* enviroments, by now just "1" exist */
677
678 int rtp_payload_size; /* The size of the RTP payload, the coder will */
679 /* do it's best to deliver a chunk with size */
680 /* below rtp_payload_size, the chunk will start */
681 /* with a start code on some codecs like H.263 */
682 /* This doesn't take account of any particular */
683 /* headers inside the transmited RTP payload */
81401c1f
J
684
685
686 /* The RTP callcack: This function is called */
687 /* every time the encoder as a packet to send */
688 /* Depends on the encoder if the data starts */
689 /* with a Start Code (it should) H.263 does */
690 void (*rtp_callback)(void *data, int size, int packet_number);
691
098eefe1
MN
692 /* statistics, used for 2-pass encoding */
693 int mv_bits;
694 int header_bits;
695 int i_tex_bits;
696 int p_tex_bits;
697 int i_count;
698 int p_count;
699 int skip_count;
b71901e6
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700 int misc_bits;
701
702 /**
64863965
MN
703 * number of bits used for the previously encoded frame.
704 * - encoding: set by lavc
7004ffb3 705 * - decoding: unused
b71901e6 706 */
098eefe1 707 int frame_bits;
7004ffb3 708
b71901e6 709 /**
64863965
MN
710 * private data of the user, can be used to carry app specific stuff.
711 * - encoding: set by user
712 * - decoding: set by user
b71901e6
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713 */
714 void *opaque;
715
de6d9b64 716 char codec_name[32];
4a663d80
PG
717 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
718 enum CodecID codec_id; /* see CODEC_ID_xxx */
7004ffb3
MN
719
720 /**
721 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
722 * this is used to workaround some encoder bugs
bd5a6020 723 * - encoding: set by user, if not then the default based on codec_id will be used
7004ffb3
MN
724 * - decoding: set by user, will be converted to upper case by lavc during init
725 */
726 unsigned int codec_tag;
92ba5ffb 727
b71901e6 728 /**
64863965
MN
729 * workaround bugs in encoders which sometimes cannot be detected automatically.
730 * - encoding: unused
731 * - decoding: set by user
b71901e6
MN
732 */
733 int workaround_bugs;
64863965 734#define FF_BUG_AUTODETECT 1 ///< autodetection
4d2858de
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735#define FF_BUG_OLD_MSMPEG4 2
736#define FF_BUG_XVID_ILACE 4
737#define FF_BUG_UMP4 8
738#define FF_BUG_NO_PADDING 16
ac0c6638 739#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 740#define FF_BUG_QPEL_CHROMA 64
db794953 741#define FF_BUG_STD_QPEL 128
36df8805 742#define FF_BUG_QPEL_CHROMA2 256
c40c3482 743#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 744#define FF_BUG_EDGE 1024
4d2858de
MN
745//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
746
b71901e6 747 /**
64863965
MN
748 * luma single coeff elimination threshold.
749 * - encoding: set by user
750 * - decoding: unused
b71901e6 751 */
1f6b6e50 752 int luma_elim_threshold;
b71901e6
MN
753
754 /**
64863965
MN
755 * chroma single coeff elimination threshold.
756 * - encoding: set by user
757 * - decoding: unused
b71901e6 758 */
1f6b6e50 759 int chroma_elim_threshold;
b71901e6
MN
760
761 /**
64863965
MN
762 * strictly follow the std (MPEG4, ...).
763 * - encoding: set by user
764 * - decoding: unused
b71901e6
MN
765 */
766 int strict_std_compliance;
767
768 /**
64863965 769 * qscale offset between ip and b frames.
b3a391e8
MN
770 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
771 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
772 * - encoding: set by user.
773 * - decoding: unused
b71901e6
MN
774 */
775 float b_quant_offset;
776
777 /**
ce3bcaed 778 * error resilience higher values will detect more errors but may missdetect
64863965
MN
779 * some more or less valid parts as errors.
780 * - encoding: unused
781 * - decoding: set by user
b71901e6 782 */
1f6b6e50 783 int error_resilience;
ce3bcaed
MN
784#define FF_ER_CAREFULL 1
785#define FF_ER_COMPLIANT 2
786#define FF_ER_AGGRESSIVE 3
787#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 788
6b72ac63 789 /**
1e491e29
MN
790 * called at the beginning of each frame to get a buffer for it.
791 * if pic.reference is set then the frame will be read later by lavc
3bb07d61 792 * width and height should be rounded up to the next multiple of 16
64863965
MN
793 * - encoding: unused
794 * - decoding: set by lavc, user can override
b71901e6 795 */
492cd3a9 796 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
b71901e6
MN
797
798 /**
1e491e29
MN
799 * called to release buffers which where allocated with get_buffer.
800 * a released buffer can be reused in get_buffer()
801 * pic.data[*] must be set to NULL
64863965
MN
802 * - encoding: unused
803 * - decoding: set by lavc, user can override
b71901e6 804 */
492cd3a9 805 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 806
b71901e6 807 /**
64863965
MN
808 * is 1 if the decoded stream contains b frames, 0 otherwise.
809 * - encoding: unused
810 * - decoding: set by lavc
b71901e6
MN
811 */
812 int has_b_frames;
b71901e6 813
64863965 814 int block_align; ///< used by some WAV based audio codecs
ce980a95 815
64863965 816 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
817 (function avcodec_parse_frame()). The frame
818 data is returned. Only MPEG codecs support this now. */
ce980a95 819
b71901e6 820 /**
e4eadb4b 821 * 0-> h263 quant 1-> mpeg quant.
64863965
MN
822 * - encoding: set by user.
823 * - decoding: unused
b71901e6
MN
824 */
825 int mpeg_quant;
ce980a95 826
b71901e6 827 /**
64863965
MN
828 * pass1 encoding statistics output buffer.
829 * - encoding: set by lavc
830 * - decoding: unused
b71901e6 831 */
64863965 832 char *stats_out;
b71901e6
MN
833
834 /**
835 * pass2 encoding statistics input buffer.
836 * concatenated stuff from stats_out of pass1 should be placed here
64863965
MN
837 * - encoding: allocated/set/freed by user
838 * - decoding: unused
b71901e6
MN
839 */
840 char *stats_in;
841
842 /**
64863965 843 * ratecontrol qmin qmax limiting method.
b71901e6 844 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
MN
845 * - encoding: set by user.
846 * - decoding: unused
b71901e6 847 */
ce980a95 848 float rc_qsquish;
b71901e6 849
ce980a95
MN
850 float rc_qmod_amp;
851 int rc_qmod_freq;
b71901e6
MN
852
853 /**
64863965
MN
854 * ratecontrol override, see RcOverride.
855 * - encoding: allocated/set/freed by user.
856 * - decoding: unused
b71901e6 857 */
ce980a95
MN
858 RcOverride *rc_override;
859 int rc_override_count;
b71901e6
MN
860
861 /**
64863965
MN
862 * rate control equation.
863 * - encoding: set by user
864 * - decoding: unused
b71901e6 865 */
ce980a95 866 char *rc_eq;
b71901e6
MN
867
868 /**
64863965
MN
869 * maximum bitrate.
870 * - encoding: set by user.
871 * - decoding: unused
b71901e6 872 */
ce980a95 873 int rc_max_rate;
b71901e6
MN
874
875 /**
64863965
MN
876 * minimum bitrate.
877 * - encoding: set by user.
878 * - decoding: unused
b71901e6 879 */
ce980a95 880 int rc_min_rate;
b71901e6
MN
881
882 /**
64863965
MN
883 * decoder bitstream buffer size.
884 * - encoding: set by user.
885 * - decoding: unused
b71901e6 886 */
ce980a95
MN
887 int rc_buffer_size;
888 float rc_buffer_aggressivity;
b71901e6
MN
889
890 /**
64863965
MN
891 * qscale factor between p and i frames.
892 * - encoding: set by user.
893 * - decoding: unused
b71901e6
MN
894 */
895 float i_quant_factor;
896
897 /**
64863965 898 * qscale offset between p and i frames.
b3a391e8
MN
899 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
900 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
901 * - encoding: set by user.
902 * - decoding: unused
b71901e6
MN
903 */
904 float i_quant_offset;
905
906 /**
64863965
MN
907 * initial complexity for pass1 ratecontrol.
908 * - encoding: set by user.
909 * - decoding: unused
b71901e6 910 */
ce980a95 911 float rc_initial_cplx;
917e06c8 912
b71901e6 913 /**
64863965
MN
914 * dct algorithm, see FF_DCT_* below.
915 * - encoding: set by user
916 * - decoding: unused
b71901e6 917 */
28db7fce 918 int dct_algo;
c7e07931 919#define FF_DCT_AUTO 0
28db7fce 920#define FF_DCT_FASTINT 1
c7e07931
MO
921#define FF_DCT_INT 2
922#define FF_DCT_MMX 3
923#define FF_DCT_MLIB 4
05c4072b 924#define FF_DCT_ALTIVEC 5
65e4c8c9 925#define FF_DCT_FAAN 6
c5d309f2
MN
926
927 /**
64863965
MN
928 * luminance masking (0-> disabled).
929 * - encoding: set by user
930 * - decoding: unused
c5d309f2
MN
931 */
932 float lumi_masking;
933
934 /**
64863965
MN
935 * temporary complexity masking (0-> disabled).
936 * - encoding: set by user
937 * - decoding: unused
c5d309f2
MN
938 */
939 float temporal_cplx_masking;
940
941 /**
64863965
MN
942 * spatial complexity masking (0-> disabled).
943 * - encoding: set by user
944 * - decoding: unused
c5d309f2
MN
945 */
946 float spatial_cplx_masking;
947
948 /**
64863965
MN
949 * p block masking (0-> disabled).
950 * - encoding: set by user
951 * - decoding: unused
c5d309f2
MN
952 */
953 float p_masking;
15415af4 954
5e746b99 955 /**
64863965
MN
956 * darkness masking (0-> disabled).
957 * - encoding: set by user
958 * - decoding: unused
5e746b99
MN
959 */
960 float dark_masking;
0c2dd16e 961
3a694b04
NK
962
963 /* for binary compatibility */
964 int unused;
965
0c2dd16e 966 /**
64863965
MN
967 * idct algorithm, see FF_IDCT_* below.
968 * - encoding: set by user
969 * - decoding: set by user
2ad1516a
MN
970 */
971 int idct_algo;
972#define FF_IDCT_AUTO 0
973#define FF_IDCT_INT 1
974#define FF_IDCT_SIMPLE 2
975#define FF_IDCT_SIMPLEMMX 3
976#define FF_IDCT_LIBMPEG2MMX 4
977#define FF_IDCT_PS2 5
978#define FF_IDCT_MLIB 6
979#define FF_IDCT_ARM 7
05c4072b 980#define FF_IDCT_ALTIVEC 8
b82cdc72 981#define FF_IDCT_SH4 9
bd7d1ea7 982#define FF_IDCT_SIMPLEARM 10
2ad1516a 983
144f0625 984 /**
64863965
MN
985 * slice count.
986 * - encoding: set by lavc
987 * - decoding: set by user (or 0)
144f0625
MN
988 */
989 int slice_count;
990 /**
64863965
MN
991 * slice offsets in the frame in bytes.
992 * - encoding: set/allocated by lavc
993 * - decoding: set/allocated by user (or NULL)
144f0625
MN
994 */
995 int *slice_offset;
996
4d2858de 997 /**
64863965
MN
998 * error concealment flags.
999 * - encoding: unused
1000 * - decoding: set by user
4d2858de
MN
1001 */
1002 int error_concealment;
1003#define FF_EC_GUESS_MVS 1
1004#define FF_EC_DEBLOCK 2
1005
6b72ac63 1006 /**
bec89a84 1007 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1008 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1009 *
1010 * with FORCE flag you may instead enable given CPU features
1011 * (Dangerous: usable in case of misdetection, improper usage however will
1012 * result into program crash)
1013 */
1014 unsigned dsp_mask;
1015#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1016 /* lower 16 bits - CPU features */
1017#ifdef HAVE_MMX
1018#define FF_MM_MMX 0x0001 /* standard MMX */
1019#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1020#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1021#define FF_MM_SSE 0x0008 /* SSE functions */
1022#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1023#endif /* HAVE_MMX */
11f18faf
MN
1024
1025 /**
64863965
MN
1026 * bits per sample/pixel from the demuxer (needed for huffyuv).
1027 * - encoding: set by lavc
1028 * - decoding: set by user
11f18faf
MN
1029 */
1030 int bits_per_sample;
1031
1032 /**
64863965
MN
1033 * prediction method (needed for huffyuv).
1034 * - encoding: set by user
1035 * - decoding: unused
11f18faf
MN
1036 */
1037 int prediction_method;
1038#define FF_PRED_LEFT 0
1039#define FF_PRED_PLANE 1
1040#define FF_PRED_MEDIAN 2
5d3cea3a
MN
1041
1042 /**
5ff85f1d 1043 * sample aspect ratio (0 if unknown).
64863965
MN
1044 * - encoding: set by user.
1045 * - decoding: set by lavc.
5d3cea3a 1046 */
5ff85f1d 1047 AVRational sample_aspect_ratio;
1e491e29
MN
1048
1049 /**
64863965
MN
1050 * the picture in the bitstream.
1051 * - encoding: set by lavc
1052 * - decoding: set by lavc
1e491e29 1053 */
492cd3a9 1054 AVFrame *coded_frame;
c8c437bc
MN
1055
1056 /**
64863965
MN
1057 * debug.
1058 * - encoding: set by user.
1059 * - decoding: set by user.
c8c437bc
MN
1060 */
1061 int debug;
1062#define FF_DEBUG_PICT_INFO 1
1063#define FF_DEBUG_RC 2
1064#define FF_DEBUG_BITSTREAM 4
1065#define FF_DEBUG_MB_TYPE 8
1066#define FF_DEBUG_QP 16
1067#define FF_DEBUG_MV 32
41773b73
MN
1068#define FF_DEBUG_VIS_MV 0x00000040
1069#define FF_DEBUG_SKIP 0x00000080
1070#define FF_DEBUG_STARTCODE 0x00000100
1071#define FF_DEBUG_PTS 0x00000200
46b4feec 1072#define FF_DEBUG_ER 0x00000400
0da71265 1073#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1074#define FF_DEBUG_BUGS 0x00001000
140cb663
MN
1075
1076 /**
64863965
MN
1077 * error.
1078 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1079 * - decoding: unused
140cb663
MN
1080 */
1081 uint64_t error[4];
17a70fde
MN
1082
1083 /**
64863965
MN
1084 * minimum MB quantizer.
1085 * - encoding: set by user.
1086 * - decoding: unused
17a70fde
MN
1087 */
1088 int mb_qmin;
1089
1090 /**
64863965
MN
1091 * maximum MB quantizer.
1092 * - encoding: set by user.
1093 * - decoding: unused
17a70fde
MN
1094 */
1095 int mb_qmax;
1457ab52
MN
1096
1097 /**
64863965
MN
1098 * motion estimation compare function.
1099 * - encoding: set by user.
1100 * - decoding: unused
1457ab52
MN
1101 */
1102 int me_cmp;
1103 /**
64863965
MN
1104 * subpixel motion estimation compare function.
1105 * - encoding: set by user.
1106 * - decoding: unused
1457ab52
MN
1107 */
1108 int me_sub_cmp;
1109 /**
64863965
MN
1110 * macroblock compare function (not supported yet).
1111 * - encoding: set by user.
1112 * - decoding: unused
1457ab52
MN
1113 */
1114 int mb_cmp;
1115#define FF_CMP_SAD 0
1116#define FF_CMP_SSE 1
1117#define FF_CMP_SATD 2
1118#define FF_CMP_DCT 3
1119#define FF_CMP_PSNR 4
1120#define FF_CMP_BIT 5
1121#define FF_CMP_RD 6
1122#define FF_CMP_ZERO 7
1123#define FF_CMP_CHROMA 256
1124
1125 /**
64863965
MN
1126 * ME diamond size & shape.
1127 * - encoding: set by user.
1128 * - decoding: unused
1457ab52
MN
1129 */
1130 int dia_size;
b07a5980
MN
1131
1132 /**
64863965
MN
1133 * amount of previous MV predictors (2a+1 x 2a+1 square).
1134 * - encoding: set by user.
1135 * - decoding: unused
b07a5980
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1136 */
1137 int last_predictor_count;
70ac76c0 1138
f5fb6b34 1139 /**
64863965
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1140 * pre pass for motion estimation.
1141 * - encoding: set by user.
1142 * - decoding: unused
f5fb6b34
MN
1143 */
1144 int pre_me;
b07a5980 1145
70ac76c0 1146 /**
64863965
MN
1147 * motion estimation pre pass compare function.
1148 * - encoding: set by user.
1149 * - decoding: unused
70ac76c0
MN
1150 */
1151 int me_pre_cmp;
826f429a 1152
70ac76c0 1153 /**
64863965
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1154 * ME pre pass diamond size & shape.
1155 * - encoding: set by user.
1156 * - decoding: unused
70ac76c0
MN
1157 */
1158 int pre_dia_size;
1159
826f429a 1160 /**
64863965
MN
1161 * subpel ME quality.
1162 * - encoding: set by user.
1163 * - decoding: unused
826f429a
MN
1164 */
1165 int me_subpel_quality;
1166
a33c7159 1167 /**
64863965 1168 * callback to negotiate the pixelFormat.
a33c7159
MN
1169 * @param fmt is the list of formats which are supported by the codec,
1170 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1171 * the first is allways the native one
1172 * @return the choosen format
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1173 * - encoding: unused
1174 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159
MN
1175 */
1176 enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
e2f9490e
FB
1177
1178 /**
1179 * DTG active format information (additionnal aspect ratio
1180 * information only used in DVB MPEG2 transport streams). 0 if
1181 * not set.
1182 *
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MN
1183 * - encoding: unused.
1184 * - decoding: set by decoder
e2f9490e
FB
1185 */
1186 int dtg_active_format;
1187#define FF_DTG_AFD_SAME 8
1188#define FF_DTG_AFD_4_3 9
1189#define FF_DTG_AFD_16_9 10
1190#define FF_DTG_AFD_14_9 11
1191#define FF_DTG_AFD_4_3_SP_14_9 13
1192#define FF_DTG_AFD_16_9_SP_14_9 14
1193#define FF_DTG_AFD_SP_4_3 15
1194
ebbcdc9a
MN
1195 /**
1196 * Maximum motion estimation search range in subpel units.
1197 * if 0 then no limit
1198 *
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1199 * - encoding: set by user.
1200 * - decoding: unused.
ebbcdc9a 1201 */
59e0ac8e 1202 int me_range;
ebbcdc9a 1203
65f7062d
MN
1204 /**
1205 * frame_rate_base.
1206 * for variable fps this is 1
1207 * - encoding: set by user.
1208 * - decoding: set by lavc.
1209 * @todo move this after frame_rate
1210 */
65f7062d 1211
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MN
1212 int frame_rate_base;
1213 /**
1214 * intra quantizer bias.
1215 * - encoding: set by user.
1216 * - decoding: unused
1217 */
1218 int intra_quant_bias;
1219#define FF_DEFAULT_QUANT_BIAS 999999
1220
1221 /**
1222 * inter quantizer bias.
1223 * - encoding: set by user.
1224 * - decoding: unused
1225 */
1226 int inter_quant_bias;
5cd62665
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1227
1228 /**
1229 * color table ID.
1230 * - encoding: unused.
1231 * - decoding: which clrtable should be used for 8bit RGB images
1232 * table have to be stored somewhere FIXME
1233 */
1234 int color_table_id;
1984f635 1235
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1236 /**
1237 * internal_buffer count.
1238 * Dont touch, used by lavc default_get_buffer()
1239 */
1240 int internal_buffer_count;
1241
1242 /**
1243 * internal_buffers.
1244 * Dont touch, used by lavc default_get_buffer()
1245 */
1246 void *internal_buffer;
158c7f05
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1247
1248#define FF_LAMBDA_SHIFT 7
1249#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1250#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1251#define FF_LAMBDA_MAX (256*128-1)
1252
1253#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
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1254 /**
1255 * global quality for codecs which cannot change it per frame.
1256 * this should be proportional to MPEG1/2/4 qscale.
1257 * - encoding: set by user.
1258 * - decoding: unused
1259 */
1260 int global_quality;
11e659c2
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1261
1262#define FF_CODER_TYPE_VLC 0
1263#define FF_CODER_TYPE_AC 1
1264 /**
1265 * coder type
1266 * - encoding: set by user.
1267 * - decoding: unused
1268 */
1269 int coder_type;
1270
1271 /**
1272 * context model
1273 * - encoding: set by user.
1274 * - decoding: unused
1275 */
1276 int context_model;
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MN
1277
1278 /**
1279 * slice flags
1280 * - encoding: unused
1281 * - decoding: set by user.
1282 */
1283 int slice_flags;
1284#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1285#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1286#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1287
fb364ada
IK
1288 /**
1289 * XVideo Motion Acceleration
1290 * - encoding: forbidden
1291 * - decoding: set by decoder
1292 */
1293 int xvmc_acceleration;
7d1c3fc1
MN
1294
1295 /**
1296 * macroblock decision mode
1297 * - encoding: set by user.
1298 * - decoding: unused
1299 */
1300 int mb_decision;
1301#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1302#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1303#define FF_MB_DECISION_RD 2 ///< rate distoration
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1304
1305 /**
1306 * custom intra quantization matrix
1307 * - encoding: set by user, can be NULL
1308 * - decoding: set by lavc
1309 */
1310 uint16_t *intra_matrix;
1311
1312 /**
1313 * custom inter quantization matrix
1314 * - encoding: set by user, can be NULL
1315 * - decoding: set by lavc
1316 */
1317 uint16_t *inter_matrix;
7d1c3fc1 1318
541ae140
MN
1319 /**
1320 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1321 * this is used to workaround some encoder bugs
1322 * - encoding: unused
1323 * - decoding: set by user, will be converted to upper case by lavc during init
1324 */
1325 unsigned int stream_codec_tag;
05fbd0a2
MN
1326
1327 /**
1328 * scene change detection threshold.
1329 * 0 is default, larger means fewer detected scene changes
1330 * - encoding: set by user.
1331 * - decoding: unused
1332 */
1333 int scenechange_threshold;
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MN
1334
1335 /**
1336 * minimum lagrange multipler
1337 * - encoding: set by user.
1338 * - decoding: unused
1339 */
1340 int lmin;
1341
1342 /**
1343 * maximum lagrange multipler
1344 * - encoding: set by user.
1345 * - decoding: unused
1346 */
1347 int lmax;
fa384dcc 1348
de6d9b64
FB
1349} AVCodecContext;
1350
97d96aaa 1351
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1352/**
1353 * AVOption.
1354 */
97d96aaa
ZK
1355typedef struct AVOption {
1356 /** options' name */
1357 const char *name; /* if name is NULL, it indicates a link to next */
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ZK
1358 /** short English text help or const struct AVOption* subpointer */
1359 const char *help; // const struct AVOption* sub;
97d96aaa
ZK
1360 /** offset to context structure where the parsed value should be stored */
1361 int offset;
1362 /** options' type */
1363 int type;
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MN
1364#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1365#define FF_OPT_TYPE_DOUBLE 2 ///< double
1366#define FF_OPT_TYPE_INT 3 ///< integer
1367#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1368#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1369//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1370#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1371#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1372 /** min value (min == max -> no limits) */
1373 double min;
1374 /** maximum value for double/int */
1375 double max;
1376 /** default boo [0,1]l/double/int value */
1377 double defval;
1378 /**
1379 * default string value (with optional semicolon delimited extra option-list
1380 * i.e. option1;option2;option3
1381 * defval might select other then first argument as default
1382 */
1383 const char *defstr;
97d96aaa
ZK
1384#define FF_OPT_MAX_DEPTH 10
1385} AVOption;
1386
64863965 1387/**
bec89a84
ZK
1388 * Parse option(s) and sets fields in passed structure
1389 * @param strct structure where the parsed results will be written
1390 * @param list list with AVOptions
1391 * @param opts string with options for parsing
1392 */
1393int avoption_parse(void* strct, const AVOption* list, const char* opts);
1394
1395
1396/**
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1397 * AVCodec.
1398 */
de6d9b64 1399typedef struct AVCodec {
18f77016 1400 const char *name;
5d234974 1401 enum CodecType type;
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FB
1402 int id;
1403 int priv_data_size;
1404 int (*init)(AVCodecContext *);
0c1a9eda 1405 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1406 int (*close)(AVCodecContext *);
0fd90455 1407 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1408 uint8_t *buf, int buf_size);
bf89e6b1 1409 int capabilities;
97d96aaa 1410 const AVOption *options;
de6d9b64 1411 struct AVCodec *next;
7a06ff14 1412 void (*flush)(AVCodecContext *);
de6d9b64
FB
1413} AVCodec;
1414
97d96aaa 1415/**
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MN
1416 * four components are given, that's all.
1417 * the last component is alpha
1418 */
de6d9b64 1419typedef struct AVPicture {
0c1a9eda 1420 uint8_t *data[4];
cd394651 1421 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1422} AVPicture;
1423
ba118447
MM
1424/**
1425 * AVPaletteControl
1426 * This structure defines a method for communicating palette changes
1427 * between and demuxer and a decoder.
1428 */
1429typedef struct AVPaletteControl {
1430
1431 /* demuxer sets this to 1 to indicate the palette has changed;
1432 * decoder resets to 0 */
1433 int palette_changed;
1434
1435 /* 256 3-byte RGB palette entries; the components should be
1436 * formatted in the buffer as "RGBRGB..." and should be scaled to
1437 * 8 bits if they originally represented 6-bit VGA palette
1438 * components */
1439 unsigned char palette[256 * 3];
1440
1441} AVPaletteControl;
1442
de6d9b64
FB
1443extern AVCodec ac3_encoder;
1444extern AVCodec mp2_encoder;
9d36bdc9 1445extern AVCodec mp3lame_encoder;
81e0d0b4 1446extern AVCodec oggvorbis_encoder;
29d48296 1447extern AVCodec faac_encoder;
de6d9b64 1448extern AVCodec mpeg1video_encoder;
029911d1 1449extern AVCodec mpeg2video_encoder;
de6d9b64
FB
1450extern AVCodec h263_encoder;
1451extern AVCodec h263p_encoder;
d4f5d74a 1452extern AVCodec flv_encoder;
de6d9b64
FB
1453extern AVCodec rv10_encoder;
1454extern AVCodec mjpeg_encoder;
b1e6b355 1455extern AVCodec ljpeg_encoder;
bf89e6b1 1456extern AVCodec mpeg4_encoder;
84afee34
MN
1457extern AVCodec msmpeg4v1_encoder;
1458extern AVCodec msmpeg4v2_encoder;
1459extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1460extern AVCodec wmv1_encoder;
1461extern AVCodec wmv2_encoder;
11f18faf 1462extern AVCodec huffyuv_encoder;
0da71265 1463extern AVCodec h264_encoder;
3d2e8cce 1464extern AVCodec asv1_encoder;
9b56edf5 1465extern AVCodec asv2_encoder;
be3564ed 1466extern AVCodec vcr1_encoder;
5e20f836 1467extern AVCodec ffv1_encoder;
c3bf0288 1468extern AVCodec mdec_encoder;
de6d9b64
FB
1469
1470extern AVCodec h263_decoder;
bf89e6b1 1471extern AVCodec mpeg4_decoder;
84afee34
MN
1472extern AVCodec msmpeg4v1_decoder;
1473extern AVCodec msmpeg4v2_decoder;
1474extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1475extern AVCodec wmv1_decoder;
0151a6f5 1476extern AVCodec wmv2_decoder;
922bc38d
MN
1477extern AVCodec mpeg1video_decoder;
1478extern AVCodec mpeg2video_decoder;
fb364ada 1479extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1480extern AVCodec h263i_decoder;
d4f5d74a 1481extern AVCodec flv_decoder;
de6d9b64 1482extern AVCodec rv10_decoder;
be8ffec9 1483extern AVCodec svq1_decoder;
8b82a956 1484extern AVCodec svq3_decoder;
020fcc94 1485extern AVCodec dvvideo_decoder;
bc8d1857
FB
1486extern AVCodec wmav1_decoder;
1487extern AVCodec wmav2_decoder;
4e66ab3b 1488extern AVCodec mjpeg_decoder;
b135d9fb 1489extern AVCodec mjpegb_decoder;
5e83dec4 1490extern AVCodec sp5x_decoder;
4b1f4f23 1491extern AVCodec mp2_decoder;
a96b68b7 1492extern AVCodec mp3_decoder;
3f95e843
FR
1493extern AVCodec mace3_decoder;
1494extern AVCodec mace6_decoder;
11f18faf 1495extern AVCodec huffyuv_decoder;
3aca208a 1496extern AVCodec oggvorbis_decoder;
f70f7c6d 1497extern AVCodec cyuv_decoder;
0da71265 1498extern AVCodec h264_decoder;
deabd4fd 1499extern AVCodec indeo3_decoder;
d86053a4 1500extern AVCodec vp3_decoder;
f44ee2c3 1501extern AVCodec theora_decoder;
891f64b3 1502extern AVCodec amr_nb_decoder;
bc634f6f 1503extern AVCodec amr_nb_encoder;
d663a1fd
MN
1504extern AVCodec amr_wb_encoder;
1505extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1506extern AVCodec aac_decoder;
1507extern AVCodec mpeg4aac_decoder;
3d2e8cce 1508extern AVCodec asv1_decoder;
9b56edf5 1509extern AVCodec asv2_decoder;
be3564ed 1510extern AVCodec vcr1_decoder;
3aff069b 1511extern AVCodec cljr_decoder;
5e20f836 1512extern AVCodec ffv1_decoder;
8809cfee 1513extern AVCodec fourxm_decoder;
c3bf0288 1514extern AVCodec mdec_decoder;
3ef8be2b
MM
1515extern AVCodec roq_decoder;
1516extern AVCodec interplay_video_decoder;
9937e686 1517extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1518extern AVCodec rpza_decoder;
1519extern AVCodec cinepak_decoder;
1520extern AVCodec msrle_decoder;
1521extern AVCodec msvideo1_decoder;
6955a882 1522extern AVCodec vqa_decoder;
4120a53a 1523extern AVCodec idcin_decoder;
b8414bbd
NK
1524extern AVCodec ra_144_decoder;
1525extern AVCodec ra_288_decoder;
3ef8be2b
MM
1526extern AVCodec roq_dpcm_decoder;
1527extern AVCodec interplay_dpcm_decoder;
9937e686 1528extern AVCodec xan_dpcm_decoder;
de6d9b64 1529
a96b68b7
FB
1530/* pcm codecs */
1531#define PCM_CODEC(id, name) \
1532extern AVCodec name ## _decoder; \
f11d3f23 1533extern AVCodec name ## _encoder
a96b68b7
FB
1534
1535PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1536PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1537PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1538PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1539PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1540PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1541PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1542PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1543
0147f198
FR
1544/* adpcm codecs */
1545
1546PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1547PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
1548PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1549PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 1550PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
0147f198 1551PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 1552PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
1553PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1554PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
0147f198 1555
a96b68b7
FB
1556#undef PCM_CODEC
1557
1558/* dummy raw video codec */
63167088
RS
1559extern AVCodec rawvideo_encoder;
1560extern AVCodec rawvideo_decoder;
de6d9b64
FB
1561
1562/* the following codecs use external GPL libs */
de6d9b64
FB
1563extern AVCodec ac3_decoder;
1564
1565/* resample.c */
1566
1567struct ReSampleContext;
1568
1569typedef struct ReSampleContext ReSampleContext;
1570
1571ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1572 int output_rate, int input_rate);
1573int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1574void audio_resample_close(ReSampleContext *s);
1575
1576/* YUV420 format is assumed ! */
1577
1578struct ImgReSampleContext;
1579
1580typedef struct ImgReSampleContext ImgReSampleContext;
1581
1582ImgReSampleContext *img_resample_init(int output_width, int output_height,
1583 int input_width, int input_height);
ab6d194a
MN
1584
1585ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1586 int iwidth, int iheight,
1587 int topBand, int bottomBand,
1588 int leftBand, int rightBand);
1589
de6d9b64 1590void img_resample(ImgReSampleContext *s,
da64ecc3 1591 AVPicture *output, const AVPicture *input);
de6d9b64
FB
1592
1593void img_resample_close(ImgReSampleContext *s);
1594
75917b88
DH
1595/**
1596 * Allocate memory for a picture. Call avpicture_free to free it.
1597 *
1598 * @param picture the picture to be filled in.
1599 * @param pix_fmt the format of the picture.
1600 * @param width the width of the picture.
1601 * @param height the height of the picture.
1602 * @return 0 if successful, -1 if not.
1603 */
1604int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1605
1606/* Free a picture previously allocated by avpicture_alloc. */
1607void avpicture_free(AVPicture *picture);
1608
0c1a9eda 1609int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1610 int pix_fmt, int width, int height);
da64ecc3 1611int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 1612 unsigned char *dest, int dest_size);
219b06c6 1613int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
1614void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1615const char *avcodec_get_pix_fmt_name(int pix_fmt);
63167088 1616enum PixelFormat avcodec_get_pix_fmt(const char* name);
219b06c6 1617
fab21997
FB
1618#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
1619#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
1620#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
1621#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
1622#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
1623#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1624
1625int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1626 int has_alpha);
1627int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1628 int has_alpha, int *loss_ptr);
1629
0469baf1
FB
1630#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
1631#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
1632int img_get_alpha_info(const AVPicture *src,
1633 int pix_fmt, int width, int height);
0469baf1 1634
219b06c6
FB
1635/* convert among pixel formats */
1636int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 1637 const AVPicture *src, int pix_fmt,
219b06c6
FB
1638 int width, int height);
1639
1640/* deinterlace a picture */
da64ecc3 1641int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
1642 int pix_fmt, int width, int height);
1643
1644/* external high level API */
1645
1646extern AVCodec *first_avcodec;
1647
156e5023 1648/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1649unsigned avcodec_version(void);
8bceb6af 1650/* returns LIBAVCODEC_BUILD constant */
51a49663 1651unsigned avcodec_build(void);
de6d9b64
FB
1652void avcodec_init(void);
1653
1654void register_avcodec(AVCodec *format);
1655AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1656AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
1657AVCodec *avcodec_find_decoder(enum CodecID id);
1658AVCodec *avcodec_find_decoder_by_name(const char *name);
1659void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1660
1e491e29 1661void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1662AVCodecContext *avcodec_alloc_context(void);
492cd3a9 1663AVFrame *avcodec_alloc_frame(void);
1e491e29 1664
492cd3a9
MN
1665int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1666void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
d90cf87b 1667void avcodec_default_free_buffers(AVCodecContext *s);
1e491e29 1668
7a06ff14
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1669/**
1670 * opens / inits the AVCodecContext.
1671 * not thread save!
1672 */
de6d9b64 1673int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 1674
0c1a9eda 1675int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 1676 int *frame_size_ptr,
0c1a9eda 1677 uint8_t *buf, int buf_size);
492cd3a9 1678int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 1679 int *got_picture_ptr,
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1680 uint8_t *buf, int buf_size);
1681int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 1682 int *data_size_ptr,
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1683 uint8_t *buf, int buf_size);
1684int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 1685 const short *samples);
0c1a9eda 1686int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 1687 const AVFrame *pict);
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1688
1689int avcodec_close(AVCodecContext *avctx);
1690
1691void avcodec_register_all(void);
a96b68b7 1692
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1693void avcodec_flush_buffers(AVCodecContext *avctx);
1694
14bea432 1695/* misc usefull functions */
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1696
1697/**
1698 * returns a single letter to describe the picture type
1699 */
1700char av_get_pict_type_char(int pict_type);
1701
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1702/**
1703 * reduce a fraction.
1704 * this is usefull for framerate calculations
1705 * @param max the maximum allowed for dst_nom & dst_den
1706 * @return 1 if exact, 0 otherwise
1707 */
1708int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
1709
1710/**
1711 * rescale a 64bit integer.
1712 * a simple a*b/c isnt possible as it can overflow
1713 */
1714int64_t av_rescale(int64_t a, int b, int c);
628d601b 1715
628d601b 1716
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1717/**
1718 * Interface for 0.5.0 version
1719 *
1720 * do not even think about it's usage for this moment
1721 */
1722
1723typedef struct {
64863965 1724 /// compressed size used from given memory buffer
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1725 int size;
1726 /// I/P/B frame type
1727 int frame_type;
1728} avc_enc_result_t;
1729
1730/**
1731 * Commands
1732 * order can't be changed - once it was defined
1733 */
1734typedef enum {
1735 // general commands
1736 AVC_OPEN_BY_NAME = 0xACA000,
1737 AVC_OPEN_BY_CODEC_ID,
1738 AVC_OPEN_BY_FOURCC,
1739 AVC_CLOSE,
1740
1741 AVC_FLUSH,
1742 // pin - struct { uint8_t* src, uint_t src_size }
1743 // pout - struct { AVPicture* img, consumed_bytes,
1744 AVC_DECODE,
1745 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1746 // pout - uint_t used_from_dest_size
1747 AVC_ENCODE,
1748
1749 // query/get video commands
1750 AVC_GET_VERSION = 0xACB000,
1751 AVC_GET_WIDTH,
1752 AVC_GET_HEIGHT,
1753 AVC_GET_DELAY,
1754 AVC_GET_QUANT_TABLE,
1755 // ...
1756
1757 // query/get audio commands
1758 AVC_GET_FRAME_SIZE = 0xABC000,
1759
1760 // maybe define some simple structure which
1761 // might be passed to the user - but they can't
1762 // contain any codec specific parts and these
1763 // calls are usualy necessary only few times
1764
1765 // set video commands
1766 AVC_SET_WIDTH = 0xACD000,
1767 AVC_SET_HEIGHT,
1768
1769 // set video encoding commands
1770 AVC_SET_FRAME_RATE = 0xACD800,
1771 AVC_SET_QUALITY,
1772 AVC_SET_HURRY_UP,
1773
1774 // set audio commands
1775 AVC_SET_SAMPLE_RATE = 0xACE000,
1776 AVC_SET_CHANNELS,
1777
1778} avc_cmd_t;
1779
1780/**
1781 * \param handle allocated private structure by libavcodec
1782 * for initialization pass NULL - will be returned pout
1783 * user is supposed to know nothing about its structure
1784 * \param cmd type of operation to be performed
1785 * \param pint input parameter
1786 * \param pout output parameter
1787 *
1788 * \returns command status - eventually for query command it might return
1789 * integer resulting value
1790 */
1791int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1792
544eb99c 1793/* memory */
e4eadb4b 1794void *av_malloc(unsigned int size);
18f77016 1795void *av_mallocz(unsigned int size);
8e1e6f31 1796void *av_realloc(void *ptr, unsigned int size);
544eb99c 1797void av_free(void *ptr);
8e1e6f31 1798char *av_strdup(const char *s);
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1799void __av_freep(void **ptr);
1800#define av_freep(p) __av_freep((void **)(p))
97d96aaa 1801void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
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1802/* for static data only */
1803/* call av_free_static to release all staticaly allocated tables */
628d601b 1804void av_free_static(void);
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1805void *__av_mallocz_static(void** location, unsigned int size);
1806#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
544eb99c 1807
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1808/* add by bero : in adx.c */
1809int is_adx(const unsigned char *buf,size_t bufsize);
1810
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1811#ifdef __cplusplus
1812}
1813#endif
1814
a96b68b7 1815#endif /* AVCODEC_H */