Reportedly FFmpeg fails to compile on Cygwin with vhook enabled, but FFserver
[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
c11c2bc2 14#include "avutil.h"
4b813d5c 15#include <sys/types.h> /* size_t */
de6d9b64 16
5aa083ee 17//FIXME the following 2 really dont belong in here
c79b8011 18#define FFMPEG_VERSION_INT 0x000409
46044471 19#define FFMPEG_VERSION "CVS"
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20
21#define AV_STRINGIFY(s) AV_TOSTRING(s)
22#define AV_TOSTRING(s) #s
5aa083ee 23
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24#define LIBAVCODEC_VERSION_INT ((51<<16)+(0<<8)+0)
25#define LIBAVCODEC_VERSION 51.0.0
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26#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
27
28#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
ce2749d2 29
2a24fe4c 30#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
9740beff 31#define AV_TIME_BASE 1000000
c0df9d75 32#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
9740beff 33
de6d9b64 34enum CodecID {
115329f1 35 CODEC_ID_NONE,
de6d9b64 36 CODEC_ID_MPEG1VIDEO,
dcedf586 37 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 38 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 39 CODEC_ID_H261,
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40 CODEC_ID_H263,
41 CODEC_ID_RV10,
68b94c35 42 CODEC_ID_RV20,
de6d9b64 43 CODEC_ID_MJPEG,
b135d9fb 44 CODEC_ID_MJPEGB,
b1e6b355 45 CODEC_ID_LJPEG,
5e83dec4 46 CODEC_ID_SP5X,
5639729b 47 CODEC_ID_JPEGLS,
bf89e6b1 48 CODEC_ID_MPEG4,
de6d9b64 49 CODEC_ID_RAWVIDEO,
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50 CODEC_ID_MSMPEG4V1,
51 CODEC_ID_MSMPEG4V2,
52 CODEC_ID_MSMPEG4V3,
e1a9dbff 53 CODEC_ID_WMV1,
b50eef3a 54 CODEC_ID_WMV2,
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55 CODEC_ID_H263P,
56 CODEC_ID_H263I,
d4f5d74a 57 CODEC_ID_FLV1,
be8ffec9 58 CODEC_ID_SVQ1,
8b82a956 59 CODEC_ID_SVQ3,
020fcc94 60 CODEC_ID_DVVIDEO,
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,
3d2e8cce 67 CODEC_ID_ASV1,
9b56edf5 68 CODEC_ID_ASV2,
5e20f836 69 CODEC_ID_FFV1,
e2a7bb28 70 CODEC_ID_4XM,
be3564ed 71 CODEC_ID_VCR1,
3aff069b 72 CODEC_ID_CLJR,
c3bf0288 73 CODEC_ID_MDEC,
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74 CODEC_ID_ROQ,
75 CODEC_ID_INTERPLAY_VIDEO,
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76 CODEC_ID_XAN_WC3,
77 CODEC_ID_XAN_WC4,
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78 CODEC_ID_RPZA,
79 CODEC_ID_CINEPAK,
80 CODEC_ID_WS_VQA,
81 CODEC_ID_MSRLE,
82 CODEC_ID_MSVIDEO1,
4120a53a 83 CODEC_ID_IDCIN,
1dc1ed99 84 CODEC_ID_8BPS,
11e29a41 85 CODEC_ID_SMC,
42cad81a 86 CODEC_ID_FLIC,
9a4117d5 87 CODEC_ID_TRUEMOTION1,
fafa0b75 88 CODEC_ID_VMDVIDEO,
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89 CODEC_ID_MSZH,
90 CODEC_ID_ZLIB,
070ed1bc 91 CODEC_ID_QTRLE,
791e7b83 92 CODEC_ID_SNOW,
9d53d58e 93 CODEC_ID_TSCC,
d0a0bbd2 94 CODEC_ID_ULTI,
d08d7142 95 CODEC_ID_QDRAW,
ab711b3c 96 CODEC_ID_VIXL,
acfd8f0f 97 CODEC_ID_QPEG,
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98 CODEC_ID_XVID,
99 CODEC_ID_PNG,
100 CODEC_ID_PPM,
101 CODEC_ID_PBM,
102 CODEC_ID_PGM,
103 CODEC_ID_PGMYUV,
104 CODEC_ID_PAM,
f37b9768 105 CODEC_ID_FFVHUFF,
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106 CODEC_ID_RV30,
107 CODEC_ID_RV40,
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108 CODEC_ID_VC9,
109 CODEC_ID_WMV3,
9c7fb608 110 CODEC_ID_LOCO,
a8a15e9d 111 CODEC_ID_WNV1,
589f8220 112 CODEC_ID_AASC,
856dbbff 113 CODEC_ID_INDEO2,
b81f8949 114 CODEC_ID_FRAPS,
64af6168 115 CODEC_ID_TRUEMOTION2,
9fa62f2a 116 CODEC_ID_BMP,
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117
118 /* various pcm "codecs" */
17179d2d 119 CODEC_ID_PCM_S16LE= 0x10000,
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120 CODEC_ID_PCM_S16BE,
121 CODEC_ID_PCM_U16LE,
122 CODEC_ID_PCM_U16BE,
123 CODEC_ID_PCM_S8,
124 CODEC_ID_PCM_U8,
125 CODEC_ID_PCM_MULAW,
126 CODEC_ID_PCM_ALAW,
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127 CODEC_ID_PCM_S32LE,
128 CODEC_ID_PCM_S32BE,
129 CODEC_ID_PCM_U32LE,
130 CODEC_ID_PCM_U32BE,
131 CODEC_ID_PCM_S24LE,
132 CODEC_ID_PCM_S24BE,
133 CODEC_ID_PCM_U24LE,
134 CODEC_ID_PCM_U24BE,
135 CODEC_ID_PCM_S24DAUD,
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136
137 /* various adpcm codecs */
17179d2d 138 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 139 CODEC_ID_ADPCM_IMA_WAV,
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140 CODEC_ID_ADPCM_IMA_DK3,
141 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 142 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 143 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 144 CODEC_ID_ADPCM_MS,
e2a7bb28 145 CODEC_ID_ADPCM_4XM,
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146 CODEC_ID_ADPCM_XA,
147 CODEC_ID_ADPCM_ADX,
7d8379f2 148 CODEC_ID_ADPCM_EA,
e5966052 149 CODEC_ID_ADPCM_G726,
b3bfb299 150 CODEC_ID_ADPCM_CT,
659c3692 151 CODEC_ID_ADPCM_SWF,
2ff4524e 152 CODEC_ID_ADPCM_YAMAHA,
891f64b3 153
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154 /* AMR */
155 CODEC_ID_AMR_NB= 0x12000,
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156 CODEC_ID_AMR_WB,
157
b8414bbd 158 /* RealAudio codecs*/
17179d2d 159 CODEC_ID_RA_144= 0x13000,
b8414bbd 160 CODEC_ID_RA_288,
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161
162 /* various DPCM codecs */
17179d2d 163 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 164 CODEC_ID_INTERPLAY_DPCM,
9937e686 165 CODEC_ID_XAN_DPCM,
d08d7142 166 CODEC_ID_SOL_DPCM,
115329f1 167
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168 CODEC_ID_MP2= 0x15000,
169 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
170 CODEC_ID_AAC,
171 CODEC_ID_MPEG4AAC,
172 CODEC_ID_AC3,
173 CODEC_ID_DTS,
174 CODEC_ID_VORBIS,
175 CODEC_ID_DVAUDIO,
176 CODEC_ID_WMAV1,
177 CODEC_ID_WMAV2,
178 CODEC_ID_MACE3,
179 CODEC_ID_MACE6,
180 CODEC_ID_VMDAUDIO,
181 CODEC_ID_SONIC,
182 CODEC_ID_SONIC_LS,
ac2570a8 183 CODEC_ID_FLAC,
1ede228a 184 CODEC_ID_MP3ADU,
d2a7718d 185 CODEC_ID_MP3ON4,
85ad5695 186 CODEC_ID_SHORTEN,
5df8a0c6 187 CODEC_ID_ALAC,
034eeaa1 188 CODEC_ID_WESTWOOD_SND1,
115329f1 189 CODEC_ID_GSM,
d9b1c197 190 CODEC_ID_QDM2,
e0f7e329 191 CODEC_ID_COOK,
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192
193 CODEC_ID_OGGTHEORA= 0x16000,
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194
195 /* subtitle codecs */
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196 CODEC_ID_DVD_SUBTITLE= 0x17000,
197 CODEC_ID_DVB_SUBTITLE,
198
17179d2d 199 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 200 stream (only used by libavformat) */
de6d9b64 201};
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202
203/* CODEC_ID_MP3LAME is absolete */
204#define CODEC_ID_MP3LAME CODEC_ID_MP3
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205
206enum CodecType {
4a663d80 207 CODEC_TYPE_UNKNOWN = -1,
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208 CODEC_TYPE_VIDEO,
209 CODEC_TYPE_AUDIO,
985180a1 210 CODEC_TYPE_DATA,
240c1657 211 CODEC_TYPE_SUBTITLE,
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212};
213
64863965 214/**
115329f1 215 * Pixel format. Notes:
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216 *
217 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
218 * color is put together as:
219 * (A << 24) | (R << 16) | (G << 8) | B
220 * This is stored as BGRA on little endian CPU architectures and ARGB on
221 * big endian CPUs.
222 *
223 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
224 * image data is stored in AVFrame.data[0]. The palette is transported in
225 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
226 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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227 * also endian-specific). Note also that the individual RGB palette
228 * components stored in AVFrame.data[1] should be in the range 0..255.
229 * This is important as many custom PAL8 video codecs that were designed
230 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 231 */
de6d9b64 232enum PixelFormat {
644a9262 233 PIX_FMT_NONE= -1,
cd394651 234 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
115329f1 235 PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
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236 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
237 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
238 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
239 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 240 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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241 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
242 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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243 PIX_FMT_RGB565, ///< always stored in cpu endianness
244 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 245 PIX_FMT_GRAY8,
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246 PIX_FMT_MONOWHITE, ///< 0 is white
247 PIX_FMT_MONOBLACK, ///< 0 is black
248 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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249 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
250 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
251 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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252 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
253 PIX_FMT_XVMC_MPEG2_IDCT,
115329f1 254 PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1
f02be79d 255 PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
dab64ebc 256 PIX_FMT_NB,
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257};
258
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259/* currently unused, may be used if 24/32 bits samples ever supported */
260enum SampleFormat {
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261 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
262 SAMPLE_FMT_S32, ///< signed 32 bits
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263 SAMPLE_FMT_FLT, ///< float
264 SAMPLE_FMT_DBL, ///< double
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265};
266
de6d9b64 267/* in bytes */
bc8d1857 268#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 269
d7425f59 270/**
cf713bb8 271 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
115329f1 272 * this is mainly needed because some optimized bitstream readers read
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273 * 32 or 64 bit at once and could read over the end<br>
274 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
275 * MPEG bitstreams could cause overread and segfault
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276 */
277#define FF_INPUT_BUFFER_PADDING_SIZE 8
278
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279/**
280 * minimum encoding buffer size.
281 * used to avoid some checks during header writing
282 */
283#define FF_MIN_BUFFER_SIZE 16384
284
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285/* motion estimation type, EPZS by default */
286enum Motion_Est_ID {
101bea5f 287 ME_ZERO = 1,
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288 ME_FULL,
289 ME_LOG,
290 ME_PHODS,
291 ME_EPZS,
292 ME_X1
293};
294
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295enum AVDiscard{
296//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
297 AVDISCARD_NONE =-16, ///< discard nothing
298 AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
299 AVDISCARD_NONREF = 8, ///< discard all non reference
300 AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
301 AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
302 AVDISCARD_ALL = 48, ///< discard all
303};
304
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305typedef struct RcOverride{
306 int start_frame;
307 int end_frame;
308 int qscale; // if this is 0 then quality_factor will be used instead
309 float quality_factor;
310} RcOverride;
311
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312/* only for ME compatiblity with old apps */
313extern int motion_estimation_method;
314
4e00e76b 315#define FF_MAX_B_FRAMES 8
9dbcbd92 316
a949d72e 317/* encoding support
115329f1 318 these flags can be passed in AVCodecContext.flags before initing
bb628dae 319 Note: not everything is supported yet.
a949d72e 320*/
de6d9b64 321
115329f1 322#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 323#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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324#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
325#define CODEC_FLAG_GMC 0x0020 ///< use GMC
326#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
327#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
328/* parent program gurantees that the input for b-frame containing streams is not written to
9dbcbd92 329 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 330#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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331#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
332#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
333#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
334#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
bb628dae 335#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
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336#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
337#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 338 of only at frame boundaries */
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339#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
340#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 341#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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342#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
343#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
344#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
345#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 346/* Fx : Flag for h263+ extra options */
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347#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
348#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
115329f1 349#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 350#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 351#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 352#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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353#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
354#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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355#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
356#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 357#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 358#define CODEC_FLAG_CLOSED_GOP 0x80000000
6fc5b059 359#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 360#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 361#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
90ad92b3 362#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< place global headers at every keyframe instead of in extradata
6fc5b059 363
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364/* Unsupported options :
365 * Syntax Arithmetic coding (SAC)
21e59552 366 * Reference Picture Selection
ba58dabc 367 * Independant Segment Decoding */
21e59552 368/* /Fx */
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369/* codec capabilities */
370
115329f1 371#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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372/**
373 * Codec uses get_buffer() for allocating buffers.
374 * direct rendering method 1
375 */
376#define CODEC_CAP_DR1 0x0002
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377/* if 'parse_only' field is true, then avcodec_parse_frame() can be
378 used */
379#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 380#define CODEC_CAP_TRUNCATED 0x0008
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381/* codec can export data for HW decoding (XvMC) */
382#define CODEC_CAP_HWACCEL 0x0010
115329f1 383/**
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384 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
385 * if this is not set, the codec is guranteed to never be feeded with NULL data
386 */
6f824977 387#define CODEC_CAP_DELAY 0x0020
bf89e6b1 388
bb628dae 389//the following defines may change, don't expect compatibility if you use them
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390#define MB_TYPE_INTRA4x4 0x0001
391#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
392#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
393#define MB_TYPE_16x16 0x0008
394#define MB_TYPE_16x8 0x0010
395#define MB_TYPE_8x16 0x0020
396#define MB_TYPE_8x8 0x0040
397#define MB_TYPE_INTERLACED 0x0080
398#define MB_TYPE_DIRECT2 0x0100 //FIXME
399#define MB_TYPE_ACPRED 0x0200
400#define MB_TYPE_GMC 0x0400
401#define MB_TYPE_SKIP 0x0800
402#define MB_TYPE_P0L0 0x1000
403#define MB_TYPE_P1L0 0x2000
404#define MB_TYPE_P0L1 0x4000
405#define MB_TYPE_P1L1 0x8000
406#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
407#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
408#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
409#define MB_TYPE_QUANT 0x00010000
410#define MB_TYPE_CBP 0x00020000
411//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
412
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413/**
414 * Pan Scan area.
415 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
416 */
417typedef struct AVPanScan{
418 /**
419 * id.
420 * - encoding: set by user.
421 * - decoding: set by lavc
422 */
423 int id;
424
425 /**
426 * width and height in 1/16 pel
427 * - encoding: set by user.
428 * - decoding: set by lavc
429 */
430 int width;
431 int height;
432
433 /**
434 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
435 * - encoding: set by user.
436 * - decoding: set by lavc
437 */
438 int16_t position[3][2];
439}AVPanScan;
440
492cd3a9 441#define FF_COMMON_FRAME \
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442 /**\
443 * pointer to the picture planes.\
444 * this might be different from the first allocated byte\
445 * - encoding: \
446 * - decoding: \
447 */\
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448 uint8_t *data[4];\
449 int linesize[4];\
450 /**\
32db2b1d 451 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
bb628dae 452 * this isn't used by lavc unless the default get/release_buffer() is used\
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453 * - encoding: \
454 * - decoding: \
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455 */\
456 uint8_t *base[4];\
457 /**\
458 * 1 -> keyframe, 0-> not\
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459 * - encoding: set by lavc\
460 * - decoding: set by lavc\
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461 */\
462 int key_frame;\
463\
464 /**\
0da71265 465 * picture type of the frame, see ?_TYPE below.\
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466 * - encoding: set by lavc for coded_picture (and set by user for input)\
467 * - decoding: set by lavc\
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468 */\
469 int pict_type;\
470\
471 /**\
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472 * presentation timestamp in time_base units (time when frame should be shown to user)\
473 * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
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474 * - encoding: MUST be set by user\
475 * - decoding: set by lavc\
1e491e29 476 */\
be6784dc 477 int64_t pts;\
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478\
479 /**\
480 * picture number in bitstream order.\
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481 * - encoding: set by\
482 * - decoding: set by lavc\
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483 */\
484 int coded_picture_number;\
485 /**\
1e491e29 486 * picture number in display order.\
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487 * - encoding: set by\
488 * - decoding: set by lavc\
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489 */\
490 int display_picture_number;\
491\
492 /**\
158c7f05 493 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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494 * - encoding: set by lavc for coded_picture (and set by user for input)\
495 * - decoding: set by lavc\
1e491e29 496 */\
158c7f05 497 int quality; \
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498\
499 /**\
500 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 501 * set to INT_MAX if the buffer has not been used yet \
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502 * - encoding: unused\
503 * - decoding: MUST be set by get_buffer()\
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504 */\
505 int age;\
506\
507 /**\
508 * is this picture used as reference\
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509 * - encoding: unused\
510 * - decoding: set by lavc (before get_buffer() call))\
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511 */\
512 int reference;\
513\
514 /**\
515 * QP table\
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516 * - encoding: unused\
517 * - decoding: set by lavc\
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518 */\
519 int8_t *qscale_table;\
520 /**\
521 * QP store stride\
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522 * - encoding: unused\
523 * - decoding: set by lavc\
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524 */\
525 int qstride;\
526\
527 /**\
528 * mbskip_table[mb]>=1 if MB didnt change\
529 * stride= mb_width = (width+15)>>4\
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530 * - encoding: unused\
531 * - decoding: set by lavc\
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532 */\
533 uint8_t *mbskip_table;\
534\
535 /**\
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536 * Motion vector table.\
537 * @code\
538 * example:\
539 * int mv_sample_log2= 4 - motion_subsample_log2;\
540 * int mb_width= (width+15)>>4;\
541 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
542 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
543 * @endcode\
a4d36c11 544 * - encoding: set by user\
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545 * - decoding: set by lavc\
546 */\
547 int16_t (*motion_val[2])[2];\
548\
549 /**\
550 * Macroblock type table\
551 * mb_type_base + mb_width + 2\
a4d36c11 552 * - encoding: set by user\
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553 * - decoding: set by lavc\
554 */\
555 uint32_t *mb_type;\
556\
557 /**\
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558 * log2 of the size of the block which a single vector in motion_val represents: \
559 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
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560 * - encoding: unused\
561 * - decoding: set by lavc\
562 */\
563 uint8_t motion_subsample_log2;\
564\
565 /**\
1e491e29 566 * for some private data of the user\
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567 * - encoding: unused\
568 * - decoding: set by user\
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569 */\
570 void *opaque;\
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571\
572 /**\
573 * error\
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574 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
575 * - decoding: unused\
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576 */\
577 uint64_t error[4];\
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578\
579 /**\
580 * type of the buffer (to keep track of who has to dealloc data[*])\
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581 * - encoding: set by the one who allocs it\
582 * - decoding: set by the one who allocs it\
3db320ea 583 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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584 */\
585 int type;\
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586 \
587 /**\
588 * when decoding, this signal how much the picture must be delayed.\
589 * extra_delay = repeat_pict / (2*fps)\
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590 * - encoding: unused\
591 * - decoding: set by lavc\
2ec23b6d 592 */\
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593 int repeat_pict;\
594 \
595 /**\
596 * \
597 */\
598 int qscale_type;\
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599 \
600 /**\
601 * The content of the picture is interlaced.\
602 * - encoding: set by user\
603 * - decoding: set by lavc (default 0)\
604 */\
605 int interlaced_frame;\
606 \
607 /**\
9dad924e 608 * if the content is interlaced, is top field displayed first.\
2744ca9a 609 * - encoding: set by user\
9dad924e 610 * - decoding: set by lavc\
2744ca9a 611 */\
9dad924e 612 int top_field_first;\
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613 \
614 /**\
615 * Pan scan.\
616 * - encoding: set by user\
617 * - decoding: set by lavc\
618 */\
619 AVPanScan *pan_scan;\
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620 \
621 /**\
622 * tell user application that palette has changed from previous frame.\
623 * - encoding: ??? (no palette-enabled encoder yet)\
624 * - decoding: set by lavc (default 0)\
625 */\
626 int palette_has_changed;\
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627 \
628 /**\
629 * Codec suggestion on buffer type if != 0\
630 * - encoding: unused\
631 * - decoding: set by lavc (before get_buffer() call))\
632 */\
633 int buffer_hints;\
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634\
635 /**\
636 * DCT coeffitients\
637 * - encoding: unused\
638 * - decoding: set by lavc\
639 */\
640 short *dct_coeff;\
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641\
642 /**\
643 * Motion referece frame index\
644 * - encoding: set by user\
645 * - decoding: set by lavc\
646 */\
647 int8_t *ref_index[2];
2ec23b6d 648
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649#define FF_QSCALE_TYPE_MPEG1 0
650#define FF_QSCALE_TYPE_MPEG2 1
9944fb97 651#define FF_QSCALE_TYPE_H264 2
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652
653#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 654#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
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655#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
656#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, don't dealloc anything
4e00e76b 657
1e491e29 658
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659#define FF_I_TYPE 1 // Intra
660#define FF_P_TYPE 2 // Predicted
661#define FF_B_TYPE 3 // Bi-dir predicted
662#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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663#define FF_SI_TYPE 5
664#define FF_SP_TYPE 6
1e491e29 665
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666#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
667#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
668#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
669#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
670
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671/**
672 * Audio Video Frame.
673 */
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674typedef struct AVFrame {
675 FF_COMMON_FRAME
676} AVFrame;
1e491e29 677
14bea432 678#define DEFAULT_FRAME_RATE_BASE 1001000
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679
680/**
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681 * Used by av_log
682 */
683typedef struct AVCLASS AVClass;
684struct AVCLASS {
685 const char* class_name;
686 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
687 or AVFormatContext, which begin with an AVClass.
688 Needed because av_log is in libavcodec and has no visibility
689 of AVIn/OutputFormat */
6fd46414 690 struct AVOption *option;
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691};
692
693/**
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694 * main external api structure.
695 */
de6d9b64 696typedef struct AVCodecContext {
b71901e6 697 /**
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698 * Info on struct for av_log
699 * - set by avcodec_alloc_context
700 */
43465395 701 AVClass *av_class;
bc874dae 702 /**
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703 * the average bitrate.
704 * - encoding: set by user. unused for constant quantizer encoding
115329f1 705 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 706 */
de6d9b64 707 int bit_rate;
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708
709 /**
64863965 710 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 711 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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712 * - encoding: set by user. unused for constant quantizer encoding
713 * - decoding: unused
b71901e6 714 */
115329f1 715 int bit_rate_tolerance;
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716
717 /**
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718 * CODEC_FLAG_*.
719 * - encoding: set by user.
720 * - decoding: set by user.
b71901e6 721 */
de6d9b64 722 int flags;
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723
724 /**
725 * some codecs needs additionnal format info. It is stored here
115329f1 726 * - encoding: set by user.
64863965 727 * - decoding: set by lavc. (FIXME is this ok?)
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728 */
729 int sub_id;
730
731 /**
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732 * motion estimation algorithm used for video coding.
733 * - encoding: MUST be set by user.
734 * - decoding: unused
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735 */
736 int me_method;
737
738 /**
64863965 739 * some codecs need / can use extra-data like huffman tables.
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740 * mjpeg: huffman tables
741 * rv10: additional flags
b704e742 742 * mpeg4: global headers (they can be in the bitstream or here)
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743 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
744 * then extradata_size to avoid prolems if its read with the bitstream reader
ed57bb79 745 * the bytewise contents of extradata must not depend on the architecture or cpu endianness
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746 * - encoding: set/allocated/freed by lavc.
747 * - decoding: set/allocated/freed by user.
b71901e6 748 */
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749 void *extradata;
750 int extradata_size;
115329f1 751
b71901e6 752 /**
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753 * this is the fundamental unit of time (in seconds) in terms
754 * of which frame timestamps are represented. for fixed-fps content,
755 * timebase should be 1/framerate and timestamp increments should be
756 * identically 1.
64863965 757 * - encoding: MUST be set by user
c0df9d75 758 * - decoding: set by lavc.
b71901e6 759 */
c0df9d75 760 AVRational time_base;
115329f1 761
5b28c8c3 762 /* video only */
14bea432 763 /**
21adafec 764 * picture width / height.
115329f1 765 * - encoding: MUST be set by user.
21adafec 766 * - decoding: set by lavc.
115329f1 767 * Note, for compatibility its possible to set this instead of
21adafec 768 * coded_width/height before decoding
b71901e6 769 */
de6d9b64 770 int width, height;
115329f1 771
e769f053 772#define FF_ASPECT_EXTENDED 15
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773
774 /**
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775 * the number of pictures in a group of pitures, or 0 for intra_only.
776 * - encoding: set by user.
777 * - decoding: unused
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778 */
779 int gop_size;
780
781 /**
64863965 782 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 783 * - encoding: set by user.
64863965 784 * - decoding: set by lavc.
b71901e6 785 */
e4eadb4b 786 enum PixelFormat pix_fmt;
115329f1 787
bdfcbbed 788 /**
115329f1 789 * Frame rate emulation. If not zero lower layer (i.e. format handler)
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790 * has to read frames at native frame rate.
791 * - encoding: set by user.
792 * - decoding: unused.
793 */
794 int rate_emu;
115329f1 795
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796 /**
797 * if non NULL, 'draw_horiz_band' is called by the libavcodec
798 * decoder to draw an horizontal band. It improve cache usage. Not
799 * all codecs can do that. You must check the codec capabilities
800 * before
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801 * - encoding: unused
802 * - decoding: set by user.
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803 * @param height the height of the slice
804 * @param y the y position of the slice
805 * @param type 1->top field, 2->bottom field, 3->frame
806 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 807 */
bf89e6b1 808 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 809 const AVFrame *src, int offset[4],
3bb07d61 810 int y, int type, int height);
bf89e6b1 811
de6d9b64 812 /* audio only */
115329f1 813 int sample_rate; ///< samples per sec
de6d9b64 814 int channels;
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815
816 /**
817 * audio sample format.
818 * - encoding: set by user.
819 * - decoding: set by lavc.
820 */
115329f1 821 enum SampleFormat sample_fmt; ///< sample format, currenly unused
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FB
822
823 /* the following data should not be initialized */
718b27a7 824 /**
115329f1 825 * samples per packet. initialized when calling 'init'
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826 */
827 int frame_size;
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DB
828 int frame_number; ///< audio or video frame number
829 int real_pict_num; ///< returns the real picture number of previous encoded frame
830
b71901e6 831 /**
115329f1 832 * number of frames the decoded output will be delayed relative to
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833 * the encoded input.
834 * - encoding: set by lavc.
835 * - decoding: unused
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836 */
837 int delay;
115329f1 838
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839 /* - encoding parameters */
840 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
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DB
841 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
842
b71901e6 843 /**
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844 * minimum quantizer.
845 * - encoding: set by user.
846 * - decoding: unused
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847 */
848 int qmin;
849
850 /**
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851 * maximum quantizer.
852 * - encoding: set by user.
853 * - decoding: unused
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854 */
855 int qmax;
856
857 /**
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858 * maximum quantizer difference etween frames.
859 * - encoding: set by user.
860 * - decoding: unused
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861 */
862 int max_qdiff;
863
864 /**
64863965 865 * maximum number of b frames between non b frames.
b71901e6 866 * note: the output will be delayed by max_b_frames+1 relative to the input
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867 * - encoding: set by user.
868 * - decoding: unused
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869 */
870 int max_b_frames;
871
872 /**
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873 * qscale factor between ip and b frames.
874 * - encoding: set by user.
875 * - decoding: unused
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876 */
877 float b_quant_factor;
115329f1 878
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879 /** obsolete FIXME remove */
880 int rc_strategy;
8b4c7dbc 881 int b_frame_strategy;
9dbcbd92 882
b71901e6 883 /**
64863965 884 * hurry up amount.
8c3eba7c 885 * deprecated in favor of skip_idct and skip_frame
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886 * - encoding: unused
887 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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888 */
889 int hurry_up;
115329f1 890
de6d9b64 891 struct AVCodec *codec;
115329f1 892
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FB
893 void *priv_data;
894
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895 /* unused, FIXME remove*/
896 int rtp_mode;
115329f1 897
bb628dae 898 int rtp_payload_size; /* The size of the RTP payload: the coder will */
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J
899 /* do it's best to deliver a chunk with size */
900 /* below rtp_payload_size, the chunk will start */
901 /* with a start code on some codecs like H.263 */
902 /* This doesn't take account of any particular */
903 /* headers inside the transmited RTP payload */
81401c1f 904
115329f1 905
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DB
906 /* The RTP callback: This function is called */
907 /* every time the encoder has a packet to send */
908 /* Depends on the encoder if the data starts */
909 /* with a Start Code (it should) H.263 does. */
910 /* mb_nb contains the number of macroblocks */
911 /* encoded in the RTP payload */
115329f1 912 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 913
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914 /* statistics, used for 2-pass encoding */
915 int mv_bits;
916 int header_bits;
917 int i_tex_bits;
918 int p_tex_bits;
919 int i_count;
920 int p_count;
921 int skip_count;
b71901e6 922 int misc_bits;
115329f1 923
b71901e6 924 /**
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925 * number of bits used for the previously encoded frame.
926 * - encoding: set by lavc
7004ffb3 927 * - decoding: unused
b71901e6 928 */
098eefe1 929 int frame_bits;
7004ffb3 930
b71901e6 931 /**
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932 * private data of the user, can be used to carry app specific stuff.
933 * - encoding: set by user
934 * - decoding: set by user
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935 */
936 void *opaque;
937
de6d9b64 938 char codec_name[32];
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PG
939 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
940 enum CodecID codec_id; /* see CODEC_ID_xxx */
115329f1 941
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942 /**
943 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
944 * this is used to workaround some encoder bugs
bd5a6020 945 * - encoding: set by user, if not then the default based on codec_id will be used
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946 * - decoding: set by user, will be converted to upper case by lavc during init
947 */
948 unsigned int codec_tag;
115329f1 949
b71901e6 950 /**
64863965 951 * workaround bugs in encoders which sometimes cannot be detected automatically.
59fa3f96 952 * - encoding: set by user
64863965 953 * - decoding: set by user
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954 */
955 int workaround_bugs;
64863965 956#define FF_BUG_AUTODETECT 1 ///< autodetection
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957#define FF_BUG_OLD_MSMPEG4 2
958#define FF_BUG_XVID_ILACE 4
959#define FF_BUG_UMP4 8
960#define FF_BUG_NO_PADDING 16
3116cb14 961#define FF_BUG_AMV 32
ac0c6638 962#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 963#define FF_BUG_QPEL_CHROMA 64
db794953 964#define FF_BUG_STD_QPEL 128
36df8805 965#define FF_BUG_QPEL_CHROMA2 256
c40c3482 966#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 967#define FF_BUG_EDGE 1024
b44bdf7e 968#define FF_BUG_HPEL_CHROMA 2048
4ccde216 969#define FF_BUG_DC_CLIP 4096
59fa3f96 970#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
4d2858de 971//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
115329f1 972
b71901e6 973 /**
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974 * luma single coeff elimination threshold.
975 * - encoding: set by user
976 * - decoding: unused
b71901e6 977 */
1f6b6e50 978 int luma_elim_threshold;
115329f1 979
b71901e6 980 /**
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981 * chroma single coeff elimination threshold.
982 * - encoding: set by user
983 * - decoding: unused
b71901e6 984 */
1f6b6e50 985 int chroma_elim_threshold;
115329f1 986
b71901e6 987 /**
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988 * strictly follow the std (MPEG4, ...).
989 * - encoding: set by user
990 * - decoding: unused
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991 */
992 int strict_std_compliance;
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993#define FF_COMPLIANCE_VERY_STRICT 2 ///< strictly conform to a older more strict version of the spec or reference software
994#define FF_COMPLIANCE_STRICT 1 ///< strictly conform to all the things in the spec no matter what consequences
995#define FF_COMPLIANCE_NORMAL 0
996#define FF_COMPLIANCE_INOFFICIAL -1 ///< allow inofficial extensions
997#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
998
b71901e6 999 /**
64863965 1000 * qscale offset between ip and b frames.
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1001 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1002 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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1003 * - encoding: set by user.
1004 * - decoding: unused
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1005 */
1006 float b_quant_offset;
115329f1 1007
b71901e6 1008 /**
ce3bcaed 1009 * error resilience higher values will detect more errors but may missdetect
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1010 * some more or less valid parts as errors.
1011 * - encoding: unused
1012 * - decoding: set by user
b71901e6 1013 */
1f6b6e50 1014 int error_resilience;
1471c6c2 1015#define FF_ER_CAREFUL 1
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1016#define FF_ER_COMPLIANT 2
1017#define FF_ER_AGGRESSIVE 3
1018#define FF_ER_VERY_AGGRESSIVE 4
115329f1 1019
6b72ac63 1020 /**
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1021 * called at the beginning of each frame to get a buffer for it.
1022 * if pic.reference is set then the frame will be read later by lavc
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1023 * avcodec_align_dimensions() should be used to find the required width and
1024 * height, as they normally need to be rounded up to the next multiple of 16
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1025 * - encoding: unused
1026 * - decoding: set by lavc, user can override
b71901e6 1027 */
492cd3a9 1028 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
115329f1 1029
b71901e6 1030 /**
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1031 * called to release buffers which where allocated with get_buffer.
1032 * a released buffer can be reused in get_buffer()
1033 * pic.data[*] must be set to NULL
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1034 * - encoding: unused
1035 * - decoding: set by lavc, user can override
b71901e6 1036 */
492cd3a9 1037 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 1038
b71901e6 1039 /**
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1040 * if 1 the stream has a 1 frame delay during decoding.
1041 * - encoding: set by lavc
64863965 1042 * - decoding: set by lavc
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1043 */
1044 int has_b_frames;
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MN
1045
1046 /**
1047 * number of bytes per packet if constant and known or 0
1048 * used by some WAV based audio codecs
1049 */
1050 int block_align;
115329f1 1051
64863965 1052 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1053 (function avcodec_parse_frame()). The frame
1054 data is returned. Only MPEG codecs support this now. */
115329f1 1055
b71901e6 1056 /**
e4eadb4b 1057 * 0-> h263 quant 1-> mpeg quant.
64863965
MN
1058 * - encoding: set by user.
1059 * - decoding: unused
b71901e6
MN
1060 */
1061 int mpeg_quant;
115329f1 1062
b71901e6 1063 /**
64863965
MN
1064 * pass1 encoding statistics output buffer.
1065 * - encoding: set by lavc
1066 * - decoding: unused
b71901e6 1067 */
64863965 1068 char *stats_out;
115329f1 1069
b71901e6
MN
1070 /**
1071 * pass2 encoding statistics input buffer.
1072 * concatenated stuff from stats_out of pass1 should be placed here
64863965
MN
1073 * - encoding: allocated/set/freed by user
1074 * - decoding: unused
b71901e6
MN
1075 */
1076 char *stats_in;
115329f1 1077
b71901e6 1078 /**
64863965 1079 * ratecontrol qmin qmax limiting method.
b71901e6 1080 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
MN
1081 * - encoding: set by user.
1082 * - decoding: unused
b71901e6 1083 */
ce980a95 1084 float rc_qsquish;
b71901e6 1085
ce980a95
MN
1086 float rc_qmod_amp;
1087 int rc_qmod_freq;
115329f1 1088
b71901e6 1089 /**
64863965
MN
1090 * ratecontrol override, see RcOverride.
1091 * - encoding: allocated/set/freed by user.
1092 * - decoding: unused
b71901e6 1093 */
ce980a95
MN
1094 RcOverride *rc_override;
1095 int rc_override_count;
115329f1 1096
b71901e6 1097 /**
64863965
MN
1098 * rate control equation.
1099 * - encoding: set by user
1100 * - decoding: unused
b71901e6 1101 */
ce980a95 1102 char *rc_eq;
115329f1 1103
b71901e6 1104 /**
64863965
MN
1105 * maximum bitrate.
1106 * - encoding: set by user.
1107 * - decoding: unused
b71901e6 1108 */
ce980a95 1109 int rc_max_rate;
115329f1 1110
b71901e6 1111 /**
64863965
MN
1112 * minimum bitrate.
1113 * - encoding: set by user.
1114 * - decoding: unused
b71901e6 1115 */
ce980a95 1116 int rc_min_rate;
115329f1 1117
b71901e6 1118 /**
64863965
MN
1119 * decoder bitstream buffer size.
1120 * - encoding: set by user.
1121 * - decoding: unused
b71901e6 1122 */
ce980a95
MN
1123 int rc_buffer_size;
1124 float rc_buffer_aggressivity;
b71901e6
MN
1125
1126 /**
64863965 1127 * qscale factor between p and i frames.
a1e257b2
MN
1128 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1129 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1130 * - encoding: set by user.
1131 * - decoding: unused
b71901e6
MN
1132 */
1133 float i_quant_factor;
115329f1 1134
b71901e6 1135 /**
64863965 1136 * qscale offset between p and i frames.
64863965
MN
1137 * - encoding: set by user.
1138 * - decoding: unused
b71901e6
MN
1139 */
1140 float i_quant_offset;
115329f1 1141
b71901e6 1142 /**
64863965
MN
1143 * initial complexity for pass1 ratecontrol.
1144 * - encoding: set by user.
1145 * - decoding: unused
b71901e6 1146 */
ce980a95 1147 float rc_initial_cplx;
917e06c8 1148
b71901e6 1149 /**
64863965
MN
1150 * dct algorithm, see FF_DCT_* below.
1151 * - encoding: set by user
1152 * - decoding: unused
b71901e6 1153 */
28db7fce 1154 int dct_algo;
c7e07931 1155#define FF_DCT_AUTO 0
28db7fce 1156#define FF_DCT_FASTINT 1
c7e07931
MO
1157#define FF_DCT_INT 2
1158#define FF_DCT_MMX 3
1159#define FF_DCT_MLIB 4
05c4072b 1160#define FF_DCT_ALTIVEC 5
65e4c8c9 1161#define FF_DCT_FAAN 6
115329f1 1162
c5d309f2 1163 /**
64863965
MN
1164 * luminance masking (0-> disabled).
1165 * - encoding: set by user
1166 * - decoding: unused
c5d309f2
MN
1167 */
1168 float lumi_masking;
115329f1 1169
c5d309f2 1170 /**
64863965
MN
1171 * temporary complexity masking (0-> disabled).
1172 * - encoding: set by user
1173 * - decoding: unused
c5d309f2
MN
1174 */
1175 float temporal_cplx_masking;
115329f1 1176
c5d309f2 1177 /**
64863965
MN
1178 * spatial complexity masking (0-> disabled).
1179 * - encoding: set by user
1180 * - decoding: unused
c5d309f2
MN
1181 */
1182 float spatial_cplx_masking;
115329f1 1183
c5d309f2 1184 /**
64863965
MN
1185 * p block masking (0-> disabled).
1186 * - encoding: set by user
1187 * - decoding: unused
c5d309f2
MN
1188 */
1189 float p_masking;
15415af4 1190
5e746b99 1191 /**
64863965
MN
1192 * darkness masking (0-> disabled).
1193 * - encoding: set by user
1194 * - decoding: unused
5e746b99
MN
1195 */
1196 float dark_masking;
115329f1
DB
1197
1198
3a694b04
NK
1199 /* for binary compatibility */
1200 int unused;
115329f1 1201
0c2dd16e 1202 /**
64863965
MN
1203 * idct algorithm, see FF_IDCT_* below.
1204 * - encoding: set by user
1205 * - decoding: set by user
2ad1516a
MN
1206 */
1207 int idct_algo;
1208#define FF_IDCT_AUTO 0
1209#define FF_IDCT_INT 1
1210#define FF_IDCT_SIMPLE 2
1211#define FF_IDCT_SIMPLEMMX 3
1212#define FF_IDCT_LIBMPEG2MMX 4
1213#define FF_IDCT_PS2 5
1214#define FF_IDCT_MLIB 6
1215#define FF_IDCT_ARM 7
05c4072b 1216#define FF_IDCT_ALTIVEC 8
b82cdc72 1217#define FF_IDCT_SH4 9
bd7d1ea7 1218#define FF_IDCT_SIMPLEARM 10
0fa8158d 1219#define FF_IDCT_H264 11
8b6103da 1220#define FF_IDCT_VP3 12
eba9ae3c 1221#define FF_IDCT_IPP 13
84740d59 1222#define FF_IDCT_XVIDMMX 14
2ad1516a 1223
144f0625 1224 /**
64863965
MN
1225 * slice count.
1226 * - encoding: set by lavc
1227 * - decoding: set by user (or 0)
144f0625
MN
1228 */
1229 int slice_count;
1230 /**
64863965
MN
1231 * slice offsets in the frame in bytes.
1232 * - encoding: set/allocated by lavc
1233 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1234 */
1235 int *slice_offset;
1236
4d2858de 1237 /**
64863965
MN
1238 * error concealment flags.
1239 * - encoding: unused
1240 * - decoding: set by user
4d2858de
MN
1241 */
1242 int error_concealment;
1243#define FF_EC_GUESS_MVS 1
1244#define FF_EC_DEBLOCK 2
1245
6b72ac63 1246 /**
bec89a84 1247 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1248 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1249 *
1250 * with FORCE flag you may instead enable given CPU features
1251 * (Dangerous: usable in case of misdetection, improper usage however will
1252 * result into program crash)
1253 */
1254 unsigned dsp_mask;
1255#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1256 /* lower 16 bits - CPU features */
1257#ifdef HAVE_MMX
1258#define FF_MM_MMX 0x0001 /* standard MMX */
1259#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1260#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1261#define FF_MM_SSE 0x0008 /* SSE functions */
1262#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
e42a152b 1263#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1264#endif /* HAVE_MMX */
eba9ae3c
GB
1265#ifdef HAVE_IWMMXT
1266#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
1267#endif /* HAVE_IWMMXT */
11f18faf
MN
1268
1269 /**
64863965
MN
1270 * bits per sample/pixel from the demuxer (needed for huffyuv).
1271 * - encoding: set by lavc
1272 * - decoding: set by user
11f18faf
MN
1273 */
1274 int bits_per_sample;
115329f1 1275
11f18faf 1276 /**
64863965
MN
1277 * prediction method (needed for huffyuv).
1278 * - encoding: set by user
1279 * - decoding: unused
11f18faf
MN
1280 */
1281 int prediction_method;
1282#define FF_PRED_LEFT 0
1283#define FF_PRED_PLANE 1
1284#define FF_PRED_MEDIAN 2
115329f1 1285
5d3cea3a 1286 /**
5ff85f1d 1287 * sample aspect ratio (0 if unknown).
1f26c6f3 1288 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
MN
1289 * - encoding: set by user.
1290 * - decoding: set by lavc.
5d3cea3a 1291 */
5ff85f1d 1292 AVRational sample_aspect_ratio;
1e491e29
MN
1293
1294 /**
64863965
MN
1295 * the picture in the bitstream.
1296 * - encoding: set by lavc
1297 * - decoding: set by lavc
1e491e29 1298 */
492cd3a9 1299 AVFrame *coded_frame;
c8c437bc
MN
1300
1301 /**
64863965
MN
1302 * debug.
1303 * - encoding: set by user.
1304 * - decoding: set by user.
c8c437bc
MN
1305 */
1306 int debug;
1307#define FF_DEBUG_PICT_INFO 1
1308#define FF_DEBUG_RC 2
1309#define FF_DEBUG_BITSTREAM 4
1310#define FF_DEBUG_MB_TYPE 8
1311#define FF_DEBUG_QP 16
1312#define FF_DEBUG_MV 32
8289c6fa 1313#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1314#define FF_DEBUG_SKIP 0x00000080
1315#define FF_DEBUG_STARTCODE 0x00000100
1316#define FF_DEBUG_PTS 0x00000200
46b4feec 1317#define FF_DEBUG_ER 0x00000400
0da71265 1318#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1319#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1320#define FF_DEBUG_VIS_QP 0x00002000
1321#define FF_DEBUG_VIS_MB_TYPE 0x00004000
115329f1 1322
140cb663 1323 /**
0c9bbaec
WH
1324 * debug.
1325 * - encoding: set by user.
1326 * - decoding: set by user.
1327 */
1328 int debug_mv;
1329#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1330#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1331#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1332
1333 /**
64863965
MN
1334 * error.
1335 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1336 * - decoding: unused
140cb663
MN
1337 */
1338 uint64_t error[4];
115329f1 1339
17a70fde 1340 /**
64863965 1341 * minimum MB quantizer.
6e0d8c06 1342 * - encoding: unused
64863965 1343 * - decoding: unused
17a70fde
MN
1344 */
1345 int mb_qmin;
1346
1347 /**
64863965 1348 * maximum MB quantizer.
6e0d8c06 1349 * - encoding: unused
64863965 1350 * - decoding: unused
17a70fde
MN
1351 */
1352 int mb_qmax;
115329f1 1353
1457ab52 1354 /**
64863965
MN
1355 * motion estimation compare function.
1356 * - encoding: set by user.
1357 * - decoding: unused
1457ab52
MN
1358 */
1359 int me_cmp;
1360 /**
64863965
MN
1361 * subpixel motion estimation compare function.
1362 * - encoding: set by user.
1363 * - decoding: unused
1457ab52
MN
1364 */
1365 int me_sub_cmp;
1366 /**
64863965
MN
1367 * macroblock compare function (not supported yet).
1368 * - encoding: set by user.
1369 * - decoding: unused
1457ab52
MN
1370 */
1371 int mb_cmp;
622348f9
MN
1372 /**
1373 * interlaced dct compare function
1374 * - encoding: set by user.
1375 * - decoding: unused
1376 */
1377 int ildct_cmp;
1457ab52
MN
1378#define FF_CMP_SAD 0
1379#define FF_CMP_SSE 1
1380#define FF_CMP_SATD 2
1381#define FF_CMP_DCT 3
1382#define FF_CMP_PSNR 4
1383#define FF_CMP_BIT 5
1384#define FF_CMP_RD 6
1385#define FF_CMP_ZERO 7
622348f9
MN
1386#define FF_CMP_VSAD 8
1387#define FF_CMP_VSSE 9
e6a2ac34 1388#define FF_CMP_NSSE 10
26efc54e
MN
1389#define FF_CMP_W53 11
1390#define FF_CMP_W97 12
0fd6aea1 1391#define FF_CMP_DCTMAX 13
1457ab52 1392#define FF_CMP_CHROMA 256
115329f1 1393
1457ab52 1394 /**
64863965
MN
1395 * ME diamond size & shape.
1396 * - encoding: set by user.
1397 * - decoding: unused
1457ab52
MN
1398 */
1399 int dia_size;
b07a5980
MN
1400
1401 /**
64863965
MN
1402 * amount of previous MV predictors (2a+1 x 2a+1 square).
1403 * - encoding: set by user.
1404 * - decoding: unused
b07a5980
MN
1405 */
1406 int last_predictor_count;
70ac76c0 1407
f5fb6b34 1408 /**
64863965
MN
1409 * pre pass for motion estimation.
1410 * - encoding: set by user.
1411 * - decoding: unused
f5fb6b34
MN
1412 */
1413 int pre_me;
b07a5980 1414
70ac76c0 1415 /**
64863965
MN
1416 * motion estimation pre pass compare function.
1417 * - encoding: set by user.
1418 * - decoding: unused
70ac76c0
MN
1419 */
1420 int me_pre_cmp;
826f429a 1421
70ac76c0 1422 /**
64863965
MN
1423 * ME pre pass diamond size & shape.
1424 * - encoding: set by user.
1425 * - decoding: unused
70ac76c0
MN
1426 */
1427 int pre_dia_size;
1428
826f429a 1429 /**
64863965
MN
1430 * subpel ME quality.
1431 * - encoding: set by user.
1432 * - decoding: unused
826f429a
MN
1433 */
1434 int me_subpel_quality;
1435
a33c7159 1436 /**
64863965 1437 * callback to negotiate the pixelFormat.
a33c7159
MN
1438 * @param fmt is the list of formats which are supported by the codec,
1439 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1440 * the first is allways the native one
1441 * @return the choosen format
64863965
MN
1442 * - encoding: unused
1443 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1444 */
494c56d3 1445 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1446
1447 /**
1448 * DTG active format information (additionnal aspect ratio
1449 * information only used in DVB MPEG2 transport streams). 0 if
1450 * not set.
115329f1 1451 *
64863965 1452 * - encoding: unused.
115329f1 1453 * - decoding: set by decoder
e2f9490e
FB
1454 */
1455 int dtg_active_format;
1456#define FF_DTG_AFD_SAME 8
1457#define FF_DTG_AFD_4_3 9
1458#define FF_DTG_AFD_16_9 10
1459#define FF_DTG_AFD_14_9 11
1460#define FF_DTG_AFD_4_3_SP_14_9 13
1461#define FF_DTG_AFD_16_9_SP_14_9 14
1462#define FF_DTG_AFD_SP_4_3 15
1463
ebbcdc9a
MN
1464 /**
1465 * Maximum motion estimation search range in subpel units.
1466 * if 0 then no limit
115329f1 1467 *
64863965
MN
1468 * - encoding: set by user.
1469 * - decoding: unused.
ebbcdc9a 1470 */
59e0ac8e 1471 int me_range;
ebbcdc9a 1472
65f7062d 1473 /**
1984f635
MN
1474 * intra quantizer bias.
1475 * - encoding: set by user.
1476 * - decoding: unused
1477 */
1478 int intra_quant_bias;
1479#define FF_DEFAULT_QUANT_BIAS 999999
115329f1 1480
1984f635
MN
1481 /**
1482 * inter quantizer bias.
1483 * - encoding: set by user.
1484 * - decoding: unused
1485 */
1486 int inter_quant_bias;
5cd62665
ZK
1487
1488 /**
1489 * color table ID.
1490 * - encoding: unused.
1491 * - decoding: which clrtable should be used for 8bit RGB images
1492 * table have to be stored somewhere FIXME
1493 */
1494 int color_table_id;
115329f1 1495
d90cf87b 1496 /**
115329f1 1497 * internal_buffer count.
bb628dae 1498 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1499 */
1500 int internal_buffer_count;
115329f1 1501
d90cf87b 1502 /**
115329f1 1503 * internal_buffers.
bb628dae 1504 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1505 */
1506 void *internal_buffer;
158c7f05
MN
1507
1508#define FF_LAMBDA_SHIFT 7
1509#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1510#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1511#define FF_LAMBDA_MAX (256*128-1)
1512
1513#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1514 /**
1515 * global quality for codecs which cannot change it per frame.
1516 * this should be proportional to MPEG1/2/4 qscale.
1517 * - encoding: set by user.
1518 * - decoding: unused
1519 */
1520 int global_quality;
115329f1 1521
11e659c2
MN
1522#define FF_CODER_TYPE_VLC 0
1523#define FF_CODER_TYPE_AC 1
1524 /**
1525 * coder type
1526 * - encoding: set by user.
1527 * - decoding: unused
1528 */
1529 int coder_type;
1530
1531 /**
1532 * context model
1533 * - encoding: set by user.
1534 * - decoding: unused
1535 */
1536 int context_model;
5639729b
MN
1537#if 0
1538 /**
1539 *
1540 * - encoding: unused
1541 * - decoding: set by user.
1542 */
1543 uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1544#endif
115329f1 1545
3bb07d61
MN
1546 /**
1547 * slice flags
1548 * - encoding: unused
1549 * - decoding: set by user.
1550 */
1551 int slice_flags;
1552#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1553#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1554#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1555
fb364ada
IK
1556 /**
1557 * XVideo Motion Acceleration
1558 * - encoding: forbidden
1559 * - decoding: set by decoder
1560 */
1561 int xvmc_acceleration;
115329f1 1562
7d1c3fc1
MN
1563 /**
1564 * macroblock decision mode
1565 * - encoding: set by user.
1566 * - decoding: unused
1567 */
1568 int mb_decision;
1569#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1570#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1571#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1572
1573 /**
1574 * custom intra quantization matrix
1575 * - encoding: set by user, can be NULL
1576 * - decoding: set by lavc
1577 */
1578 uint16_t *intra_matrix;
1579
1580 /**
1581 * custom inter quantization matrix
1582 * - encoding: set by user, can be NULL
1583 * - decoding: set by lavc
1584 */
1585 uint16_t *inter_matrix;
115329f1 1586
541ae140
MN
1587 /**
1588 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1589 * this is used to workaround some encoder bugs
1590 * - encoding: unused
1591 * - decoding: set by user, will be converted to upper case by lavc during init
1592 */
1593 unsigned int stream_codec_tag;
05fbd0a2
MN
1594
1595 /**
1596 * scene change detection threshold.
1597 * 0 is default, larger means fewer detected scene changes
1598 * - encoding: set by user.
1599 * - decoding: unused
1600 */
1601 int scenechange_threshold;
158c7f05
MN
1602
1603 /**
1604 * minimum lagrange multipler
1605 * - encoding: set by user.
1606 * - decoding: unused
1607 */
1608 int lmin;
1609
1610 /**
1611 * maximum lagrange multipler
1612 * - encoding: set by user.
1613 * - decoding: unused
1614 */
1615 int lmax;
2a2bbcb0
MM
1616
1617 /**
1618 * Palette control structure
1619 * - encoding: ??? (no palette-enabled encoder yet)
1620 * - decoding: set by user.
1621 */
1622 struct AVPaletteControl *palctrl;
821cb11f
MN
1623
1624 /**
1625 * noise reduction strength
1626 * - encoding: set by user.
1627 * - decoding: unused
1628 */
1629 int noise_reduction;
115329f1 1630
074c4ca7 1631 /**
e1c2a5a0
RT
1632 * called at the beginning of a frame to get cr buffer for it.
1633 * buffer type (size, hints) must be the same. lavc won't check it.
1634 * lavc will pass previous buffer in pic, function should return
1635 * same buffer or new buffer with old frame "painted" into it.
1636 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1637 * - encoding: unused
e1c2a5a0 1638 * - decoding: set by lavc, user can override
074c4ca7 1639 */
e1c2a5a0 1640 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1641
1642 /**
1643 * number of bits which should be loaded into the rc buffer before decoding starts
1644 * - encoding: set by user.
1645 * - decoding: unused
1646 */
1647 int rc_initial_buffer_occupancy;
1648
1649 /**
1650 *
1651 * - encoding: set by user.
1652 * - decoding: unused
1653 */
1654 int inter_threshold;
1655
1656 /**
1657 * CODEC_FLAG2_*.
1658 * - encoding: set by user.
1659 * - decoding: set by user.
1660 */
1661 int flags2;
7ebfc0ea
MN
1662
1663 /**
1664 * simulates errors in the bitstream to test error concealment.
1665 * - encoding: set by user.
1666 * - decoding: unused.
1667 */
1668 int error_rate;
115329f1 1669
a1e257b2
MN
1670 /**
1671 * MP3 antialias algorithm, see FF_AA_* below.
1672 * - encoding: unused
1673 * - decoding: set by user
1674 */
1675 int antialias_algo;
1676#define FF_AA_AUTO 0
1677#define FF_AA_FASTINT 1 //not implemented yet
1678#define FF_AA_INT 2
1679#define FF_AA_FLOAT 3
77ea0d4b
MN
1680 /**
1681 * Quantizer noise shaping.
1682 * - encoding: set by user
1683 * - decoding: unused
1684 */
1685 int quantizer_noise_shaping;
9c3d33d6
MN
1686
1687 /**
1688 * Thread count.
1689 * is used to decide how many independant tasks should be passed to execute()
1690 * - encoding: set by user
1691 * - decoding: set by user
1692 */
1693 int thread_count;
115329f1 1694
9c3d33d6
MN
1695 /**
1696 * the codec may call this to execute several independant things. it will return only after
1697 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1698 * default implementation will execute the parts serially
399cec2f 1699 * @param count the number of things to execute
9c3d33d6
MN
1700 * - encoding: set by lavc, user can override
1701 * - decoding: set by lavc, user can override
1702 */
1703 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
115329f1 1704
9c3d33d6
MN
1705 /**
1706 * Thread opaque.
1707 * can be used by execute() to store some per AVCodecContext stuff.
1708 * - encoding: set by execute()
1709 * - decoding: set by execute()
1710 */
1711 void *thread_opaque;
a4d36c11
MN
1712
1713 /**
115329f1 1714 * Motion estimation threshold. under which no motion estimation is
f20f8a8b 1715 * performed, but instead the user specified motion vectors are used
115329f1 1716 *
a4d36c11 1717 * - encoding: set by user
f20f8a8b 1718 * - decoding: unused
a4d36c11 1719 */
2750b827 1720 int me_threshold;
f20f8a8b
MN
1721
1722 /**
1723 * Macroblock threshold. under which the user specified macroblock types will be used
1724 * - encoding: set by user
1725 * - decoding: unused
1726 */
1727 int mb_threshold;
bf266e19
MN
1728
1729 /**
d4c5d2ad 1730 * precision of the intra dc coefficient - 8.
bf266e19
MN
1731 * - encoding: set by user
1732 * - decoding: unused
1733 */
1734 int intra_dc_precision;
d4c5d2ad
MN
1735
1736 /**
1737 * noise vs. sse weight for the nsse comparsion function.
1738 * - encoding: set by user
1739 * - decoding: unused
1740 */
1741 int nsse_weight;
0dfd33c3
MN
1742
1743 /**
160d679c 1744 * number of macroblock rows at the top which are skipped.
0dfd33c3
MN
1745 * - encoding: unused
1746 * - decoding: set by user
1747 */
1748 int skip_top;
1749
1750 /**
160d679c 1751 * number of macroblock rows at the bottom which are skipped.
0dfd33c3
MN
1752 * - encoding: unused
1753 * - decoding: set by user
1754 */
1755 int skip_bottom;
baced9f5
MN
1756
1757 /**
1758 * profile
1759 * - encoding: set by user
1760 * - decoding: set by lavc
1761 */
1762 int profile;
1763#define FF_PROFILE_UNKNOWN -99
1764
1765 /**
1766 * level
1767 * - encoding: set by user
1768 * - decoding: set by lavc
1769 */
1770 int level;
1771#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1772
1773 /**
1774 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1775 * - encoding: unused
1776 * - decoding: set by user
1777 */
1778 int lowres;
21adafec
MN
1779
1780 /**
bbf18b21 1781 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1782 * or other things are used
1783 * - encoding: unused
1784 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1785 */
1786 int coded_width, coded_height;
bbf18b21
MN
1787
1788 /**
1789 * frame skip threshold
1790 * - encoding: set by user
1791 * - decoding: unused
1792 */
1793 int frame_skip_threshold;
1794
1795 /**
1796 * frame skip factor
1797 * - encoding: set by user
1798 * - decoding: unused
1799 */
1800 int frame_skip_factor;
0fd6aea1
MN
1801
1802 /**
1803 * frame skip exponent
1804 * - encoding: set by user
1805 * - decoding: unused
1806 */
1807 int frame_skip_exp;
1808
1809 /**
1810 * frame skip comparission function
1811 * - encoding: set by user.
1812 * - decoding: unused
1813 */
1814 int frame_skip_cmp;
957c743a
CM
1815
1816 /**
1817 * border processing masking. raises the quantizer for mbs on the borders
1818 * of the picture.
1819 * - encoding: set by user
1820 * - decoding: unused
1821 */
1822 float border_masking;
6e0d8c06
MN
1823
1824 /**
1825 * minimum MB lagrange multipler.
1826 * - encoding: set by user.
1827 * - decoding: unused
1828 */
1829 int mb_lmin;
1830
1831 /**
1832 * maximum MB lagrange multipler.
1833 * - encoding: set by user.
1834 * - decoding: unused
1835 */
1836 int mb_lmax;
09c3e44e
MN
1837
1838 /**
115329f1 1839 *
09c3e44e
MN
1840 * - encoding: set by user.
1841 * - decoding: unused
1842 */
1843 int me_penalty_compensation;
8c3eba7c
MN
1844
1845 /**
115329f1 1846 *
8c3eba7c
MN
1847 * - encoding: unused
1848 * - decoding: set by user.
1849 */
1850 enum AVDiscard skip_loop_filter;
1851
1852 /**
115329f1 1853 *
8c3eba7c
MN
1854 * - encoding: unused
1855 * - decoding: set by user.
1856 */
1857 enum AVDiscard skip_idct;
1858
1859 /**
115329f1 1860 *
8c3eba7c
MN
1861 * - encoding: unused
1862 * - decoding: set by user.
1863 */
1864 enum AVDiscard skip_frame;
de6d9b64
FB
1865} AVCodecContext;
1866
64863965
MN
1867/**
1868 * AVCodec.
1869 */
de6d9b64 1870typedef struct AVCodec {
18f77016 1871 const char *name;
5d234974 1872 enum CodecType type;
9297ddd3 1873 enum CodecID id;
de6d9b64
FB
1874 int priv_data_size;
1875 int (*init)(AVCodecContext *);
0c1a9eda 1876 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1877 int (*close)(AVCodecContext *);
0fd90455 1878 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1879 uint8_t *buf, int buf_size);
bf89e6b1 1880 int capabilities;
a1043f9c 1881#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
40c5fa26 1882 void *dummy; // FIXME remove next time we break binary compatibility
a1043f9c 1883#endif
de6d9b64 1884 struct AVCodec *next;
7a06ff14 1885 void (*flush)(AVCodecContext *);
b0df362b 1886 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1887 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1888} AVCodec;
1889
97d96aaa 1890/**
d7425f59
MN
1891 * four components are given, that's all.
1892 * the last component is alpha
1893 */
de6d9b64 1894typedef struct AVPicture {
0c1a9eda 1895 uint8_t *data[4];
cd394651 1896 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1897} AVPicture;
1898
ba118447
MM
1899/**
1900 * AVPaletteControl
1901 * This structure defines a method for communicating palette changes
1902 * between and demuxer and a decoder.
1903 */
2e99641b 1904#define AVPALETTE_SIZE 1024
432d84c3 1905#define AVPALETTE_COUNT 256
ba118447
MM
1906typedef struct AVPaletteControl {
1907
1908 /* demuxer sets this to 1 to indicate the palette has changed;
1909 * decoder resets to 0 */
1910 int palette_changed;
1911
2a2bbcb0
MM
1912 /* 4-byte ARGB palette entries, stored in native byte order; note that
1913 * the individual palette components should be on a 8-bit scale; if
1914 * the palette data comes from a IBM VGA native format, the component
1915 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1916 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1917
1918} AVPaletteControl;
1919
c6ec28b1 1920typedef struct AVSubtitleRect {
240c1657
FB
1921 uint16_t x;
1922 uint16_t y;
1923 uint16_t w;
1924 uint16_t h;
1925 uint16_t nb_colors;
240c1657
FB
1926 int linesize;
1927 uint32_t *rgba_palette;
1928 uint8_t *bitmap;
c6ec28b1
MN
1929} AVSubtitleRect;
1930
1931typedef struct AVSubtitle {
1932 uint16_t format; /* 0 = graphics */
1933 uint32_t start_display_time; /* relative to packet pts, in ms */
1934 uint32_t end_display_time; /* relative to packet pts, in ms */
1935 uint32_t num_rects;
1936 AVSubtitleRect *rects;
240c1657
FB
1937} AVSubtitle;
1938
de6d9b64
FB
1939extern AVCodec ac3_encoder;
1940extern AVCodec mp2_encoder;
9d36bdc9 1941extern AVCodec mp3lame_encoder;
81e0d0b4 1942extern AVCodec oggvorbis_encoder;
5c5dea3f 1943extern AVCodec oggtheora_encoder;
29d48296 1944extern AVCodec faac_encoder;
1ddadfa9 1945extern AVCodec xvid_encoder;
de6d9b64 1946extern AVCodec mpeg1video_encoder;
029911d1 1947extern AVCodec mpeg2video_encoder;
1c3990db 1948extern AVCodec h261_encoder;
de6d9b64
FB
1949extern AVCodec h263_encoder;
1950extern AVCodec h263p_encoder;
d4f5d74a 1951extern AVCodec flv_encoder;
de6d9b64 1952extern AVCodec rv10_encoder;
68b94c35 1953extern AVCodec rv20_encoder;
6faa4645 1954extern AVCodec dvvideo_encoder;
de6d9b64 1955extern AVCodec mjpeg_encoder;
b1e6b355 1956extern AVCodec ljpeg_encoder;
5639729b 1957extern AVCodec jpegls_encoder;
4eff7cf4 1958extern AVCodec png_encoder;
5b6d5596
MN
1959extern AVCodec ppm_encoder;
1960extern AVCodec pgm_encoder;
1961extern AVCodec pgmyuv_encoder;
1962extern AVCodec pbm_encoder;
1963extern AVCodec pam_encoder;
bf89e6b1 1964extern AVCodec mpeg4_encoder;
84afee34
MN
1965extern AVCodec msmpeg4v1_encoder;
1966extern AVCodec msmpeg4v2_encoder;
1967extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1968extern AVCodec wmv1_encoder;
1969extern AVCodec wmv2_encoder;
11f18faf 1970extern AVCodec huffyuv_encoder;
f37b9768 1971extern AVCodec ffvhuff_encoder;
0da71265 1972extern AVCodec h264_encoder;
3d2e8cce 1973extern AVCodec asv1_encoder;
9b56edf5 1974extern AVCodec asv2_encoder;
be3564ed 1975extern AVCodec vcr1_encoder;
5e20f836 1976extern AVCodec ffv1_encoder;
791e7b83 1977extern AVCodec snow_encoder;
c3bf0288 1978extern AVCodec mdec_encoder;
a273bbfb 1979extern AVCodec zlib_encoder;
54f5fd22
AB
1980extern AVCodec sonic_encoder;
1981extern AVCodec sonic_ls_encoder;
3b64893d 1982extern AVCodec svq1_encoder;
6662ec29 1983extern AVCodec x264_encoder;
de6d9b64
FB
1984
1985extern AVCodec h263_decoder;
c6148de2 1986extern AVCodec h261_decoder;
bf89e6b1 1987extern AVCodec mpeg4_decoder;
84afee34
MN
1988extern AVCodec msmpeg4v1_decoder;
1989extern AVCodec msmpeg4v2_decoder;
1990extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1991extern AVCodec wmv1_decoder;
0151a6f5 1992extern AVCodec wmv2_decoder;
21aa398f
AB
1993extern AVCodec vc9_decoder;
1994extern AVCodec wmv3_decoder;
922bc38d
MN
1995extern AVCodec mpeg1video_decoder;
1996extern AVCodec mpeg2video_decoder;
c512b303 1997extern AVCodec mpegvideo_decoder;
fb364ada 1998extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1999extern AVCodec h263i_decoder;
d4f5d74a 2000extern AVCodec flv_decoder;
de6d9b64 2001extern AVCodec rv10_decoder;
68b94c35 2002extern AVCodec rv20_decoder;
3f05305d
MN
2003extern AVCodec rv30_decoder;
2004extern AVCodec rv40_decoder;
be8ffec9 2005extern AVCodec svq1_decoder;
8b82a956 2006extern AVCodec svq3_decoder;
020fcc94 2007extern AVCodec dvvideo_decoder;
bc8d1857
FB
2008extern AVCodec wmav1_decoder;
2009extern AVCodec wmav2_decoder;
4e66ab3b 2010extern AVCodec mjpeg_decoder;
b135d9fb 2011extern AVCodec mjpegb_decoder;
5e83dec4 2012extern AVCodec sp5x_decoder;
4eff7cf4 2013extern AVCodec png_decoder;
4b1f4f23 2014extern AVCodec mp2_decoder;
a96b68b7 2015extern AVCodec mp3_decoder;
1ede228a 2016extern AVCodec mp3adu_decoder;
d2a7718d 2017extern AVCodec mp3on4_decoder;
d9b1c197 2018extern AVCodec qdm2_decoder;
e0f7e329 2019extern AVCodec cook_decoder;
3f95e843
FR
2020extern AVCodec mace3_decoder;
2021extern AVCodec mace6_decoder;
11f18faf 2022extern AVCodec huffyuv_decoder;
f37b9768 2023extern AVCodec ffvhuff_decoder;
3aca208a 2024extern AVCodec oggvorbis_decoder;
5c5dea3f 2025extern AVCodec oggtheora_decoder;
f70f7c6d 2026extern AVCodec cyuv_decoder;
0da71265 2027extern AVCodec h264_decoder;
deabd4fd 2028extern AVCodec indeo3_decoder;
d86053a4 2029extern AVCodec vp3_decoder;
f44ee2c3 2030extern AVCodec theora_decoder;
891f64b3 2031extern AVCodec amr_nb_decoder;
bc634f6f 2032extern AVCodec amr_nb_encoder;
d663a1fd
MN
2033extern AVCodec amr_wb_encoder;
2034extern AVCodec amr_wb_decoder;
280bd7b7
ZK
2035extern AVCodec aac_decoder;
2036extern AVCodec mpeg4aac_decoder;
3d2e8cce 2037extern AVCodec asv1_decoder;
9b56edf5 2038extern AVCodec asv2_decoder;
be3564ed 2039extern AVCodec vcr1_decoder;
3aff069b 2040extern AVCodec cljr_decoder;
5e20f836 2041extern AVCodec ffv1_decoder;
791e7b83 2042extern AVCodec snow_decoder;
8809cfee 2043extern AVCodec fourxm_decoder;
c3bf0288 2044extern AVCodec mdec_decoder;
3ef8be2b
MM
2045extern AVCodec roq_decoder;
2046extern AVCodec interplay_video_decoder;
9937e686 2047extern AVCodec xan_wc3_decoder;
2fdf638b
MM
2048extern AVCodec rpza_decoder;
2049extern AVCodec cinepak_decoder;
2050extern AVCodec msrle_decoder;
2051extern AVCodec msvideo1_decoder;
6955a882 2052extern AVCodec vqa_decoder;
4120a53a 2053extern AVCodec idcin_decoder;
1dc1ed99 2054extern AVCodec eightbps_decoder;
11e29a41 2055extern AVCodec smc_decoder;
42cad81a 2056extern AVCodec flic_decoder;
fafa0b75
MM
2057extern AVCodec vmdvideo_decoder;
2058extern AVCodec vmdaudio_decoder;
9a4117d5 2059extern AVCodec truemotion1_decoder;
64af6168 2060extern AVCodec truemotion2_decoder;
a273bbfb
RT
2061extern AVCodec mszh_decoder;
2062extern AVCodec zlib_decoder;
b8414bbd
NK
2063extern AVCodec ra_144_decoder;
2064extern AVCodec ra_288_decoder;
3ef8be2b
MM
2065extern AVCodec roq_dpcm_decoder;
2066extern AVCodec interplay_dpcm_decoder;
9937e686 2067extern AVCodec xan_dpcm_decoder;
d08d7142 2068extern AVCodec sol_dpcm_decoder;
54f5fd22 2069extern AVCodec sonic_decoder;
070ed1bc 2070extern AVCodec qtrle_decoder;
ac2570a8 2071extern AVCodec flac_decoder;
9d53d58e 2072extern AVCodec tscc_decoder;
d0a0bbd2 2073extern AVCodec ulti_decoder;
d08d7142 2074extern AVCodec qdraw_decoder;
ab711b3c 2075extern AVCodec xl_decoder;
acfd8f0f 2076extern AVCodec qpeg_decoder;
85ad5695 2077extern AVCodec shorten_decoder;
9c7fb608 2078extern AVCodec loco_decoder;
a8a15e9d 2079extern AVCodec wnv1_decoder;
589f8220 2080extern AVCodec aasc_decoder;
6d6d7970 2081extern AVCodec alac_decoder;
034eeaa1 2082extern AVCodec ws_snd1_decoder;
856dbbff 2083extern AVCodec indeo2_decoder;
0bde73d9 2084extern AVCodec vorbis_decoder;
b81f8949 2085extern AVCodec fraps_decoder;
bb4c2140
MN
2086extern AVCodec libgsm_encoder;
2087extern AVCodec libgsm_decoder;
9fa62f2a 2088extern AVCodec bmp_decoder;
de6d9b64 2089
a96b68b7
FB
2090/* pcm codecs */
2091#define PCM_CODEC(id, name) \
2092extern AVCodec name ## _decoder; \
f11d3f23 2093extern AVCodec name ## _encoder
a96b68b7 2094
b461b3bc
RD
2095PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2096PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2097PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2098PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2099PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2100PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2101PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2102PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2103PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
a96b68b7
FB
2104PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2105PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2106PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2107PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2108PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2109PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2110PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2111PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2112
0147f198
FR
2113/* adpcm codecs */
2114
2115PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2116PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
2117PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2118PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 2119PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 2120PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 2121PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 2122PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
2123PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2124PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 2125PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 2126PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
b3bfb299 2127PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
659c3692 2128PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2ff4524e 2129PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
0147f198 2130
a96b68b7
FB
2131#undef PCM_CODEC
2132
2133/* dummy raw video codec */
63167088
RS
2134extern AVCodec rawvideo_encoder;
2135extern AVCodec rawvideo_decoder;
de6d9b64
FB
2136
2137/* the following codecs use external GPL libs */
de6d9b64 2138extern AVCodec ac3_decoder;
23c99253 2139extern AVCodec dts_decoder;
de6d9b64 2140
240c1657 2141/* subtitles */
689abe56 2142extern AVCodec dvdsub_encoder;
240c1657
FB
2143extern AVCodec dvdsub_decoder;
2144extern AVCodec dvbsub_encoder;
c6ec28b1 2145extern AVCodec dvbsub_decoder;
240c1657 2146
de6d9b64
FB
2147/* resample.c */
2148
2149struct ReSampleContext;
aaaf1635 2150struct AVResampleContext;
de6d9b64
FB
2151
2152typedef struct ReSampleContext ReSampleContext;
2153
115329f1 2154ReSampleContext *audio_resample_init(int output_channels, int input_channels,
de6d9b64
FB
2155 int output_rate, int input_rate);
2156int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2157void audio_resample_close(ReSampleContext *s);
2158
6e225de2 2159struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
aaaf1635 2160int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 2161void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 2162void av_resample_close(struct AVResampleContext *c);
aaaf1635 2163
de6d9b64
FB
2164/* YUV420 format is assumed ! */
2165
2166struct ImgReSampleContext;
2167
2168typedef struct ImgReSampleContext ImgReSampleContext;
2169
2170ImgReSampleContext *img_resample_init(int output_width, int output_height,
2171 int input_width, int input_height);
ab6d194a
MN
2172
2173ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2174 int iwidth, int iheight,
2175 int topBand, int bottomBand,
1ff93ffc
TK
2176 int leftBand, int rightBand,
2177 int padtop, int padbottom,
2178 int padleft, int padright);
2179
ab6d194a 2180
115329f1 2181void img_resample(ImgReSampleContext *s,
da64ecc3 2182 AVPicture *output, const AVPicture *input);
de6d9b64
FB
2183
2184void img_resample_close(ImgReSampleContext *s);
2185
75917b88
DH
2186/**
2187 * Allocate memory for a picture. Call avpicture_free to free it.
2188 *
2189 * @param picture the picture to be filled in.
2190 * @param pix_fmt the format of the picture.
2191 * @param width the width of the picture.
2192 * @param height the height of the picture.
2193 * @return 0 if successful, -1 if not.
2194 */
2195int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2196
2197/* Free a picture previously allocated by avpicture_alloc. */
2198void avpicture_free(AVPicture *picture);
2199
0c1a9eda 2200int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 2201 int pix_fmt, int width, int height);
da64ecc3 2202int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 2203 unsigned char *dest, int dest_size);
219b06c6 2204int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
2205void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2206const char *avcodec_get_pix_fmt_name(int pix_fmt);
21adafec 2207void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
63167088 2208enum PixelFormat avcodec_get_pix_fmt(const char* name);
d07730dd 2209unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
219b06c6 2210
fab21997
FB
2211#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
2212#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
2213#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
2214#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
2215#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
2216#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2217
2218int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2219 int has_alpha);
2220int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2221 int has_alpha, int *loss_ptr);
2222
0469baf1
FB
2223#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
2224#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
2225int img_get_alpha_info(const AVPicture *src,
2226 int pix_fmt, int width, int height);
0469baf1 2227
219b06c6
FB
2228/* convert among pixel formats */
2229int img_convert(AVPicture *dst, int dst_pix_fmt,
115329f1 2230 const AVPicture *src, int pix_fmt,
219b06c6
FB
2231 int width, int height);
2232
2233/* deinterlace a picture */
da64ecc3 2234int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2235 int pix_fmt, int width, int height);
2236
2237/* external high level API */
2238
2239extern AVCodec *first_avcodec;
2240
156e5023 2241/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 2242unsigned avcodec_version(void);
8bceb6af 2243/* returns LIBAVCODEC_BUILD constant */
51a49663 2244unsigned avcodec_build(void);
de6d9b64
FB
2245void avcodec_init(void);
2246
2247void register_avcodec(AVCodec *format);
2248AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 2249AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
2250AVCodec *avcodec_find_decoder(enum CodecID id);
2251AVCodec *avcodec_find_decoder_by_name(const char *name);
2252void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2253
1e491e29 2254void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 2255AVCodecContext *avcodec_alloc_context(void);
7906085f 2256void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 2257AVFrame *avcodec_alloc_frame(void);
1e491e29 2258
492cd3a9
MN
2259int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2260void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
2261int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2262void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
0ecca7a4 2263int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
3a569751 2264enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 2265
5a815088
MN
2266int avcodec_thread_init(AVCodecContext *s, int thread_count);
2267void avcodec_thread_free(AVCodecContext *s);
2268int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 2269int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
2270//FIXME func typedef
2271
7a06ff14
MN
2272/**
2273 * opens / inits the AVCodecContext.
2274 * not thread save!
2275 */
de6d9b64 2276int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 2277
115329f1 2278int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2279 int *frame_size_ptr,
0c1a9eda 2280 uint8_t *buf, int buf_size);
115329f1 2281int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2282 int *got_picture_ptr,
0c1a9eda 2283 uint8_t *buf, int buf_size);
240c1657
FB
2284int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2285 int *got_sub_ptr,
2286 const uint8_t *buf, int buf_size);
115329f1 2287int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2288 int *data_size_ptr,
0c1a9eda 2289 uint8_t *buf, int buf_size);
115329f1 2290int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2291 const short *samples);
115329f1 2292int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2293 const AVFrame *pict);
115329f1 2294int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657 2295 const AVSubtitle *sub);
de6d9b64
FB
2296
2297int avcodec_close(AVCodecContext *avctx);
2298
2299void avcodec_register_all(void);
a96b68b7 2300
1c2a8c7f
MN
2301void avcodec_flush_buffers(AVCodecContext *avctx);
2302
88730be6
MR
2303void avcodec_default_free_buffers(AVCodecContext *s);
2304
14bea432 2305/* misc usefull functions */
d8085ea7
MN
2306
2307/**
2308 * returns a single letter to describe the picture type
2309 */
2310char av_get_pict_type_char(int pict_type);
2311
2e8f2c20 2312
8424cf50
FB
2313/* frame parsing */
2314typedef struct AVCodecParserContext {
2315 void *priv_data;
2316 struct AVCodecParser *parser;
2317 int64_t frame_offset; /* offset of the current frame */
115329f1 2318 int64_t cur_offset; /* current offset
8424cf50
FB
2319 (incremented by each av_parser_parse()) */
2320 int64_t last_frame_offset; /* offset of the last frame */
2321 /* video info */
2322 int pict_type; /* XXX: put it back in AVCodecContext */
2323 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2324 int64_t pts; /* pts of the current frame */
2325 int64_t dts; /* dts of the current frame */
2326
2327 /* private data */
2328 int64_t last_pts;
2329 int64_t last_dts;
a62aecce 2330 int fetch_timestamp;
b84f2a35
FB
2331
2332#define AV_PARSER_PTS_NB 4
2333 int cur_frame_start_index;
2334 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2335 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2336 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
115329f1 2337
7cbaa7ba
MN
2338 int flags;
2339#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
8424cf50
FB
2340} AVCodecParserContext;
2341
2342typedef struct AVCodecParser {
99f06236 2343 int codec_ids[5]; /* several codec IDs are permitted */
8424cf50
FB
2344 int priv_data_size;
2345 int (*parser_init)(AVCodecParserContext *s);
115329f1 2346 int (*parser_parse)(AVCodecParserContext *s,
8424cf50 2347 AVCodecContext *avctx,
115329f1 2348 uint8_t **poutbuf, int *poutbuf_size,
8424cf50
FB
2349 const uint8_t *buf, int buf_size);
2350 void (*parser_close)(AVCodecParserContext *s);
90ad92b3 2351 int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
8424cf50
FB
2352 struct AVCodecParser *next;
2353} AVCodecParser;
2354
2355extern AVCodecParser *av_first_parser;
2356
2357void av_register_codec_parser(AVCodecParser *parser);
2358AVCodecParserContext *av_parser_init(int codec_id);
115329f1 2359int av_parser_parse(AVCodecParserContext *s,
8424cf50 2360 AVCodecContext *avctx,
115329f1 2361 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2362 const uint8_t *buf, int buf_size,
2363 int64_t pts, int64_t dts);
90ad92b3
MN
2364int av_parser_change(AVCodecParserContext *s,
2365 AVCodecContext *avctx,
115329f1 2366 uint8_t **poutbuf, int *poutbuf_size,
90ad92b3 2367 const uint8_t *buf, int buf_size, int keyframe);
8424cf50
FB
2368void av_parser_close(AVCodecParserContext *s);
2369
2370extern AVCodecParser mpegvideo_parser;
2371extern AVCodecParser mpeg4video_parser;
c6148de2 2372extern AVCodecParser h261_parser;
8424cf50
FB
2373extern AVCodecParser h263_parser;
2374extern AVCodecParser h264_parser;
8e6325b9 2375extern AVCodecParser mjpeg_parser;
99f06236 2376extern AVCodecParser pnm_parser;
8424cf50
FB
2377extern AVCodecParser mpegaudio_parser;
2378extern AVCodecParser ac3_parser;
240c1657 2379extern AVCodecParser dvdsub_parser;
c6ec28b1 2380extern AVCodecParser dvbsub_parser;
8424cf50 2381
544eb99c 2382/* memory */
e4eadb4b 2383void *av_malloc(unsigned int size);
18f77016 2384void *av_mallocz(unsigned int size);
8e1e6f31 2385void *av_realloc(void *ptr, unsigned int size);
544eb99c 2386void av_free(void *ptr);
8e1e6f31 2387char *av_strdup(const char *s);
81c5f887 2388void av_freep(void *ptr);
97d96aaa 2389void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2390/* for static data only */
2391/* call av_free_static to release all staticaly allocated tables */
628d601b 2392void av_free_static(void);
8d1f2ba5 2393void *av_mallocz_static(unsigned int size);
073c2593 2394void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2395
fc384777
MM
2396/* add by bero : in adx.c */
2397int is_adx(const unsigned char *buf,size_t bufsize);
2398
e1c2a5a0
RT
2399void img_copy(AVPicture *dst, const AVPicture *src,
2400 int pix_fmt, int width, int height);
2401
9b879566
MB
2402/* av_log API */
2403
2404#include <stdarg.h>
2405
d8019eb5 2406#define AV_LOG_QUIET -1
9b879566
MB
2407#define AV_LOG_ERROR 0
2408#define AV_LOG_INFO 1
2409#define AV_LOG_DEBUG 2
2410
f4bd8cf0 2411#ifdef __GNUC__
bc874dae 2412extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2413#else
2414extern void av_log(void*, int level, const char *fmt, ...);
2415#endif
2416
bc874dae 2417extern void av_vlog(void*, int level, const char *fmt, va_list);
9b879566
MB
2418extern int av_log_get_level(void);
2419extern void av_log_set_level(int);
bc874dae 2420extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2421
3a278992 2422/* endian macros */
e96682e6 2423#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2424#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2425#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2426 (((uint8_t*)(x))[1] << 16) | \
2427 (((uint8_t*)(x))[2] << 8) | \
2428 ((uint8_t*)(x))[3])
2429#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2430#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2431 (((uint8_t*)(x))[2] << 16) | \
2432 (((uint8_t*)(x))[1] << 8) | \
2433 ((uint8_t*)(x))[0])
e96682e6 2434#endif
3a278992 2435
ad2b531d
MR
2436extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2437
02d697aa
ZK
2438#ifdef __cplusplus
2439}
2440#endif
2441
a96b68b7 2442#endif /* AVCODEC_H */