Fraps FPS1 video decoder (v1 & v2), courtesy of Roine Gustafsson <roine
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
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7 */
8
9
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10#ifdef __cplusplus
11extern "C" {
12#endif
13
de6d9b64 14#include "common.h"
5ff85f1d 15#include "rational.h"
4b813d5c 16#include <sys/types.h> /* size_t */
de6d9b64 17
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18#define FFMPEG_VERSION_INT 0x000409
19#define FFMPEG_VERSION "0.4.9-pre1"
b81f8949 20#define LIBAVCODEC_BUILD 4755
4b1f4f23 21
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22#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
23#define LIBAVCODEC_VERSION FFMPEG_VERSION
24
25#define AV_STRINGIFY(s) AV_TOSTRING(s)
26#define AV_TOSTRING(s) #s
27#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
ce2749d2 28
2a24fe4c 29#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
9740beff 30#define AV_TIME_BASE 1000000
c0df9d75 31#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
9740beff 32
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33enum CodecID {
34 CODEC_ID_NONE,
35 CODEC_ID_MPEG1VIDEO,
dcedf586 36 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 37 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 38 CODEC_ID_H261,
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39 CODEC_ID_H263,
40 CODEC_ID_RV10,
68b94c35 41 CODEC_ID_RV20,
de6d9b64 42 CODEC_ID_MJPEG,
b135d9fb 43 CODEC_ID_MJPEGB,
b1e6b355 44 CODEC_ID_LJPEG,
5e83dec4 45 CODEC_ID_SP5X,
bf89e6b1 46 CODEC_ID_MPEG4,
de6d9b64 47 CODEC_ID_RAWVIDEO,
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48 CODEC_ID_MSMPEG4V1,
49 CODEC_ID_MSMPEG4V2,
50 CODEC_ID_MSMPEG4V3,
e1a9dbff 51 CODEC_ID_WMV1,
b50eef3a 52 CODEC_ID_WMV2,
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53 CODEC_ID_H263P,
54 CODEC_ID_H263I,
d4f5d74a 55 CODEC_ID_FLV1,
be8ffec9 56 CODEC_ID_SVQ1,
8b82a956 57 CODEC_ID_SVQ3,
020fcc94 58 CODEC_ID_DVVIDEO,
11f18faf 59 CODEC_ID_HUFFYUV,
f70f7c6d 60 CODEC_ID_CYUV,
0da71265 61 CODEC_ID_H264,
deabd4fd 62 CODEC_ID_INDEO3,
d86053a4 63 CODEC_ID_VP3,
f44ee2c3 64 CODEC_ID_THEORA,
3d2e8cce 65 CODEC_ID_ASV1,
9b56edf5 66 CODEC_ID_ASV2,
5e20f836 67 CODEC_ID_FFV1,
e2a7bb28 68 CODEC_ID_4XM,
be3564ed 69 CODEC_ID_VCR1,
3aff069b 70 CODEC_ID_CLJR,
c3bf0288 71 CODEC_ID_MDEC,
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72 CODEC_ID_ROQ,
73 CODEC_ID_INTERPLAY_VIDEO,
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74 CODEC_ID_XAN_WC3,
75 CODEC_ID_XAN_WC4,
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76 CODEC_ID_RPZA,
77 CODEC_ID_CINEPAK,
78 CODEC_ID_WS_VQA,
79 CODEC_ID_MSRLE,
80 CODEC_ID_MSVIDEO1,
4120a53a 81 CODEC_ID_IDCIN,
1dc1ed99 82 CODEC_ID_8BPS,
11e29a41 83 CODEC_ID_SMC,
42cad81a 84 CODEC_ID_FLIC,
9a4117d5 85 CODEC_ID_TRUEMOTION1,
fafa0b75 86 CODEC_ID_VMDVIDEO,
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87 CODEC_ID_MSZH,
88 CODEC_ID_ZLIB,
070ed1bc 89 CODEC_ID_QTRLE,
791e7b83 90 CODEC_ID_SNOW,
9d53d58e 91 CODEC_ID_TSCC,
d0a0bbd2 92 CODEC_ID_ULTI,
d08d7142 93 CODEC_ID_QDRAW,
ab711b3c 94 CODEC_ID_VIXL,
acfd8f0f 95 CODEC_ID_QPEG,
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96 CODEC_ID_XVID,
97 CODEC_ID_PNG,
98 CODEC_ID_PPM,
99 CODEC_ID_PBM,
100 CODEC_ID_PGM,
101 CODEC_ID_PGMYUV,
102 CODEC_ID_PAM,
f37b9768 103 CODEC_ID_FFVHUFF,
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104 CODEC_ID_RV30,
105 CODEC_ID_RV40,
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106 CODEC_ID_VC9,
107 CODEC_ID_WMV3,
9c7fb608 108 CODEC_ID_LOCO,
a8a15e9d 109 CODEC_ID_WNV1,
589f8220 110 CODEC_ID_AASC,
856dbbff 111 CODEC_ID_INDEO2,
b81f8949 112 CODEC_ID_FRAPS,
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113
114 /* various pcm "codecs" */
17179d2d 115 CODEC_ID_PCM_S16LE= 0x10000,
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116 CODEC_ID_PCM_S16BE,
117 CODEC_ID_PCM_U16LE,
118 CODEC_ID_PCM_U16BE,
119 CODEC_ID_PCM_S8,
120 CODEC_ID_PCM_U8,
121 CODEC_ID_PCM_MULAW,
122 CODEC_ID_PCM_ALAW,
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123
124 /* various adpcm codecs */
17179d2d 125 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 126 CODEC_ID_ADPCM_IMA_WAV,
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127 CODEC_ID_ADPCM_IMA_DK3,
128 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 129 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 130 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 131 CODEC_ID_ADPCM_MS,
e2a7bb28 132 CODEC_ID_ADPCM_4XM,
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133 CODEC_ID_ADPCM_XA,
134 CODEC_ID_ADPCM_ADX,
7d8379f2 135 CODEC_ID_ADPCM_EA,
e5966052 136 CODEC_ID_ADPCM_G726,
b3bfb299 137 CODEC_ID_ADPCM_CT,
659c3692 138 CODEC_ID_ADPCM_SWF,
891f64b3 139
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140 /* AMR */
141 CODEC_ID_AMR_NB= 0x12000,
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142 CODEC_ID_AMR_WB,
143
b8414bbd 144 /* RealAudio codecs*/
17179d2d 145 CODEC_ID_RA_144= 0x13000,
b8414bbd 146 CODEC_ID_RA_288,
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147
148 /* various DPCM codecs */
17179d2d 149 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 150 CODEC_ID_INTERPLAY_DPCM,
9937e686 151 CODEC_ID_XAN_DPCM,
d08d7142 152 CODEC_ID_SOL_DPCM,
985180a1 153
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154 CODEC_ID_MP2= 0x15000,
155 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
156 CODEC_ID_AAC,
157 CODEC_ID_MPEG4AAC,
158 CODEC_ID_AC3,
159 CODEC_ID_DTS,
160 CODEC_ID_VORBIS,
161 CODEC_ID_DVAUDIO,
162 CODEC_ID_WMAV1,
163 CODEC_ID_WMAV2,
164 CODEC_ID_MACE3,
165 CODEC_ID_MACE6,
166 CODEC_ID_VMDAUDIO,
167 CODEC_ID_SONIC,
168 CODEC_ID_SONIC_LS,
ac2570a8 169 CODEC_ID_FLAC,
1ede228a 170 CODEC_ID_MP3ADU,
d2a7718d 171 CODEC_ID_MP3ON4,
85ad5695 172 CODEC_ID_SHORTEN,
5df8a0c6 173 CODEC_ID_ALAC,
034eeaa1 174 CODEC_ID_WESTWOOD_SND1,
ac2570a8 175
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176 CODEC_ID_OGGTHEORA= 0x16000,
177
17179d2d 178 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 179 stream (only used by libavformat) */
de6d9b64 180};
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181
182/* CODEC_ID_MP3LAME is absolete */
183#define CODEC_ID_MP3LAME CODEC_ID_MP3
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184
185enum CodecType {
4a663d80 186 CODEC_TYPE_UNKNOWN = -1,
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187 CODEC_TYPE_VIDEO,
188 CODEC_TYPE_AUDIO,
985180a1 189 CODEC_TYPE_DATA,
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190};
191
64863965 192/**
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193 * Pixel format. Notes:
194 *
195 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
196 * color is put together as:
197 * (A << 24) | (R << 16) | (G << 8) | B
198 * This is stored as BGRA on little endian CPU architectures and ARGB on
199 * big endian CPUs.
200 *
201 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
202 * image data is stored in AVFrame.data[0]. The palette is transported in
203 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
204 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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205 * also endian-specific). Note also that the individual RGB palette
206 * components stored in AVFrame.data[1] should be in the range 0..255.
207 * This is important as many custom PAL8 video codecs that were designed
208 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 209 */
de6d9b64 210enum PixelFormat {
644a9262 211 PIX_FMT_NONE= -1,
cd394651 212 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
ebb177dd 213 PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
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214 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
215 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
216 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
217 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 218 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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219 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
220 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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221 PIX_FMT_RGB565, ///< always stored in cpu endianness
222 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 223 PIX_FMT_GRAY8,
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224 PIX_FMT_MONOWHITE, ///< 0 is white
225 PIX_FMT_MONOBLACK, ///< 0 is black
226 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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227 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
228 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
229 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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230 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
231 PIX_FMT_XVMC_MPEG2_IDCT,
ebb177dd 232 PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1
f02be79d 233 PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
dab64ebc 234 PIX_FMT_NB,
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235};
236
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237/* currently unused, may be used if 24/32 bits samples ever supported */
238enum SampleFormat {
64863965 239 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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240 SAMPLE_FMT_S32, ///< signed 32 bits
241 SAMPLE_FMT_FLT, ///< float
242 SAMPLE_FMT_DBL, ///< double
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243};
244
de6d9b64 245/* in bytes */
bc8d1857 246#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 247
d7425f59 248/**
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249 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
250 * this is mainly needed because some optimized bitstream readers read
251 * 32 or 64 bit at once and could read over the end<br>
252 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
253 * MPEG bitstreams could cause overread and segfault
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254 */
255#define FF_INPUT_BUFFER_PADDING_SIZE 8
256
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257/**
258 * minimum encoding buffer size.
259 * used to avoid some checks during header writing
260 */
261#define FF_MIN_BUFFER_SIZE 16384
262
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263/* motion estimation type, EPZS by default */
264enum Motion_Est_ID {
101bea5f 265 ME_ZERO = 1,
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266 ME_FULL,
267 ME_LOG,
268 ME_PHODS,
269 ME_EPZS,
270 ME_X1
271};
272
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273enum AVRounding {
274 AV_ROUND_ZERO = 0, ///< round toward zero
275 AV_ROUND_INF = 1, ///< round away from zero
276 AV_ROUND_DOWN = 2, ///< round toward -infinity
277 AV_ROUND_UP = 3, ///< round toward +infinity
278 AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
279};
280
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281typedef struct RcOverride{
282 int start_frame;
283 int end_frame;
284 int qscale; // if this is 0 then quality_factor will be used instead
285 float quality_factor;
286} RcOverride;
287
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288/* only for ME compatiblity with old apps */
289extern int motion_estimation_method;
290
4e00e76b 291#define FF_MAX_B_FRAMES 8
9dbcbd92 292
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293/* encoding support
294 these flags can be passed in AVCodecContext.flags before initing
295 Note: note not everything is supported yet
296*/
de6d9b64 297
64863965 298#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 299#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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300#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
301#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 302#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 303#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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304/* parent program gurantees that the input for b-frame containing streams is not written to
305 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 306#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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307#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
308#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
309#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
310#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
311#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
312#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
313#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 314 of only at frame boundaries */
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315#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
316#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 317#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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318#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
319#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
320#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
321#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 322/* Fx : Flag for h263+ extra options */
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323#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
324#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 325#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 326#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 327#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 328#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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329#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
330#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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331#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
332#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 333#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 334#define CODEC_FLAG_CLOSED_GOP 0x80000000
6fc5b059 335#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 336#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 337#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
6fc5b059 338
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339/* Unsupported options :
340 * Syntax Arithmetic coding (SAC)
21e59552 341 * Reference Picture Selection
ba58dabc 342 * Independant Segment Decoding */
21e59552 343/* /Fx */
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344/* codec capabilities */
345
64863965 346#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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347/**
348 * Codec uses get_buffer() for allocating buffers.
349 * direct rendering method 1
350 */
351#define CODEC_CAP_DR1 0x0002
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352/* if 'parse_only' field is true, then avcodec_parse_frame() can be
353 used */
354#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 355#define CODEC_CAP_TRUNCATED 0x0008
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356/* codec can export data for HW decoding (XvMC) */
357#define CODEC_CAP_HWACCEL 0x0010
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358/**
359 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
360 * if this is not set, the codec is guranteed to never be feeded with NULL data
361 */
6f824977 362#define CODEC_CAP_DELAY 0x0020
bf89e6b1 363
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364//the following defines might change, so dont expect compatibility if u use them
365#define MB_TYPE_INTRA4x4 0x0001
366#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
367#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
368#define MB_TYPE_16x16 0x0008
369#define MB_TYPE_16x8 0x0010
370#define MB_TYPE_8x16 0x0020
371#define MB_TYPE_8x8 0x0040
372#define MB_TYPE_INTERLACED 0x0080
373#define MB_TYPE_DIRECT2 0x0100 //FIXME
374#define MB_TYPE_ACPRED 0x0200
375#define MB_TYPE_GMC 0x0400
376#define MB_TYPE_SKIP 0x0800
377#define MB_TYPE_P0L0 0x1000
378#define MB_TYPE_P1L0 0x2000
379#define MB_TYPE_P0L1 0x4000
380#define MB_TYPE_P1L1 0x8000
381#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
382#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
383#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
384#define MB_TYPE_QUANT 0x00010000
385#define MB_TYPE_CBP 0x00020000
386//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
387
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388/**
389 * Pan Scan area.
390 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
391 */
392typedef struct AVPanScan{
393 /**
394 * id.
395 * - encoding: set by user.
396 * - decoding: set by lavc
397 */
398 int id;
399
400 /**
401 * width and height in 1/16 pel
402 * - encoding: set by user.
403 * - decoding: set by lavc
404 */
405 int width;
406 int height;
407
408 /**
409 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
410 * - encoding: set by user.
411 * - decoding: set by lavc
412 */
413 int16_t position[3][2];
414}AVPanScan;
415
492cd3a9 416#define FF_COMMON_FRAME \
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417 /**\
418 * pointer to the picture planes.\
419 * this might be different from the first allocated byte\
420 * - encoding: \
421 * - decoding: \
422 */\
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423 uint8_t *data[4];\
424 int linesize[4];\
425 /**\
32db2b1d 426 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 427 * this isnt used by lavc unless the default get/release_buffer() is used\
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428 * - encoding: \
429 * - decoding: \
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430 */\
431 uint8_t *base[4];\
432 /**\
433 * 1 -> keyframe, 0-> not\
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434 * - encoding: set by lavc\
435 * - decoding: set by lavc\
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436 */\
437 int key_frame;\
438\
439 /**\
0da71265 440 * picture type of the frame, see ?_TYPE below.\
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441 * - encoding: set by lavc for coded_picture (and set by user for input)\
442 * - decoding: set by lavc\
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443 */\
444 int pict_type;\
445\
446 /**\
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447 * presentation timestamp in time_base units (time when frame should be shown to user)\
448 * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
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449 * - encoding: MUST be set by user\
450 * - decoding: set by lavc\
1e491e29 451 */\
be6784dc 452 int64_t pts;\
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453\
454 /**\
455 * picture number in bitstream order.\
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456 * - encoding: set by\
457 * - decoding: set by lavc\
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458 */\
459 int coded_picture_number;\
460 /**\
1e491e29 461 * picture number in display order.\
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462 * - encoding: set by\
463 * - decoding: set by lavc\
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464 */\
465 int display_picture_number;\
466\
467 /**\
158c7f05 468 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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469 * - encoding: set by lavc for coded_picture (and set by user for input)\
470 * - decoding: set by lavc\
1e491e29 471 */\
158c7f05 472 int quality; \
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473\
474 /**\
475 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 476 * set to INT_MAX if the buffer has not been used yet \
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477 * - encoding: unused\
478 * - decoding: MUST be set by get_buffer()\
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479 */\
480 int age;\
481\
482 /**\
483 * is this picture used as reference\
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484 * - encoding: unused\
485 * - decoding: set by lavc (before get_buffer() call))\
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486 */\
487 int reference;\
488\
489 /**\
490 * QP table\
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491 * - encoding: unused\
492 * - decoding: set by lavc\
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493 */\
494 int8_t *qscale_table;\
495 /**\
496 * QP store stride\
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497 * - encoding: unused\
498 * - decoding: set by lavc\
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499 */\
500 int qstride;\
501\
502 /**\
503 * mbskip_table[mb]>=1 if MB didnt change\
504 * stride= mb_width = (width+15)>>4\
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505 * - encoding: unused\
506 * - decoding: set by lavc\
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507 */\
508 uint8_t *mbskip_table;\
509\
510 /**\
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511 * Motion vector table.\
512 * @code\
513 * example:\
514 * int mv_sample_log2= 4 - motion_subsample_log2;\
515 * int mb_width= (width+15)>>4;\
516 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
517 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
518 * @endcode\
a4d36c11 519 * - encoding: set by user\
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520 * - decoding: set by lavc\
521 */\
522 int16_t (*motion_val[2])[2];\
523\
524 /**\
525 * Macroblock type table\
526 * mb_type_base + mb_width + 2\
a4d36c11 527 * - encoding: set by user\
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528 * - decoding: set by lavc\
529 */\
530 uint32_t *mb_type;\
531\
532 /**\
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533 * log2 of the size of the block which a single vector in motion_val represents: \
534 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
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535 * - encoding: unused\
536 * - decoding: set by lavc\
537 */\
538 uint8_t motion_subsample_log2;\
539\
540 /**\
1e491e29 541 * for some private data of the user\
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542 * - encoding: unused\
543 * - decoding: set by user\
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544 */\
545 void *opaque;\
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546\
547 /**\
548 * error\
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549 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
550 * - decoding: unused\
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551 */\
552 uint64_t error[4];\
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553\
554 /**\
555 * type of the buffer (to keep track of who has to dealloc data[*])\
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556 * - encoding: set by the one who allocs it\
557 * - decoding: set by the one who allocs it\
3db320ea 558 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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559 */\
560 int type;\
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561 \
562 /**\
563 * when decoding, this signal how much the picture must be delayed.\
564 * extra_delay = repeat_pict / (2*fps)\
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565 * - encoding: unused\
566 * - decoding: set by lavc\
2ec23b6d 567 */\
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568 int repeat_pict;\
569 \
570 /**\
571 * \
572 */\
573 int qscale_type;\
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574 \
575 /**\
576 * The content of the picture is interlaced.\
577 * - encoding: set by user\
578 * - decoding: set by lavc (default 0)\
579 */\
580 int interlaced_frame;\
581 \
582 /**\
9dad924e 583 * if the content is interlaced, is top field displayed first.\
2744ca9a 584 * - encoding: set by user\
9dad924e 585 * - decoding: set by lavc\
2744ca9a 586 */\
9dad924e 587 int top_field_first;\
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588 \
589 /**\
590 * Pan scan.\
591 * - encoding: set by user\
592 * - decoding: set by lavc\
593 */\
594 AVPanScan *pan_scan;\
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595 \
596 /**\
597 * tell user application that palette has changed from previous frame.\
598 * - encoding: ??? (no palette-enabled encoder yet)\
599 * - decoding: set by lavc (default 0)\
600 */\
601 int palette_has_changed;\
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602 \
603 /**\
604 * Codec suggestion on buffer type if != 0\
605 * - encoding: unused\
606 * - decoding: set by lavc (before get_buffer() call))\
607 */\
608 int buffer_hints;\
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609\
610 /**\
611 * DCT coeffitients\
612 * - encoding: unused\
613 * - decoding: set by lavc\
614 */\
615 short *dct_coeff;\
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616\
617 /**\
618 * Motion referece frame index\
619 * - encoding: set by user\
620 * - decoding: set by lavc\
621 */\
622 int8_t *ref_index[2];
2ec23b6d 623
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624#define FF_QSCALE_TYPE_MPEG1 0
625#define FF_QSCALE_TYPE_MPEG2 1
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626
627#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 628#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 629#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 630#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 631
1e491e29 632
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633#define FF_I_TYPE 1 // Intra
634#define FF_P_TYPE 2 // Predicted
635#define FF_B_TYPE 3 // Bi-dir predicted
636#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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637#define FF_SI_TYPE 5
638#define FF_SP_TYPE 6
1e491e29 639
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640#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
641#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
642#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
643#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
644
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645/**
646 * Audio Video Frame.
647 */
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648typedef struct AVFrame {
649 FF_COMMON_FRAME
650} AVFrame;
1e491e29 651
14bea432 652#define DEFAULT_FRAME_RATE_BASE 1001000
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653
654/**
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655 * Used by av_log
656 */
657typedef struct AVCLASS AVClass;
658struct AVCLASS {
659 const char* class_name;
660 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
661 or AVFormatContext, which begin with an AVClass.
662 Needed because av_log is in libavcodec and has no visibility
663 of AVIn/OutputFormat */
664};
665
666/**
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667 * main external api structure.
668 */
de6d9b64 669typedef struct AVCodecContext {
b71901e6 670 /**
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671 * Info on struct for av_log
672 * - set by avcodec_alloc_context
673 */
43465395 674 AVClass *av_class;
bc874dae 675 /**
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676 * the average bitrate.
677 * - encoding: set by user. unused for constant quantizer encoding
678 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 679 */
de6d9b64 680 int bit_rate;
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681
682 /**
64863965 683 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 684 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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685 * - encoding: set by user. unused for constant quantizer encoding
686 * - decoding: unused
b71901e6
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687 */
688 int bit_rate_tolerance;
689
690 /**
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MN
691 * CODEC_FLAG_*.
692 * - encoding: set by user.
693 * - decoding: set by user.
b71901e6 694 */
de6d9b64 695 int flags;
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696
697 /**
698 * some codecs needs additionnal format info. It is stored here
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699 * - encoding: set by user.
700 * - decoding: set by lavc. (FIXME is this ok?)
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701 */
702 int sub_id;
703
704 /**
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705 * motion estimation algorithm used for video coding.
706 * - encoding: MUST be set by user.
707 * - decoding: unused
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708 */
709 int me_method;
710
711 /**
64863965 712 * some codecs need / can use extra-data like huffman tables.
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713 * mjpeg: huffman tables
714 * rv10: additional flags
b704e742 715 * mpeg4: global headers (they can be in the bitstream or here)
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716 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
717 * then extradata_size to avoid prolems if its read with the bitstream reader
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718 * - encoding: set/allocated/freed by lavc.
719 * - decoding: set/allocated/freed by user.
b71901e6 720 */
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721 void *extradata;
722 int extradata_size;
723
de6d9b64 724 /* video only */
b71901e6 725 /**
c0df9d75 726 * time base in which the timestamps are specified.
64863965 727 * - encoding: MUST be set by user
c0df9d75 728 * - decoding: set by lavc.
b71901e6 729 */
c0df9d75 730 AVRational time_base;
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731
732 /**
21adafec 733 * picture width / height.
64863965 734 * - encoding: MUST be set by user.
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735 * - decoding: set by lavc.
736 * Note, for compatibility its possible to set this instead of
737 * coded_width/height before decoding
b71901e6 738 */
de6d9b64 739 int width, height;
b71901e6 740
e769f053 741#define FF_ASPECT_EXTENDED 15
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MN
742
743 /**
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744 * the number of pictures in a group of pitures, or 0 for intra_only.
745 * - encoding: set by user.
746 * - decoding: unused
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747 */
748 int gop_size;
749
750 /**
64863965 751 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 752 * - encoding: set by user.
64863965 753 * - decoding: set by lavc.
b71901e6 754 */
e4eadb4b 755 enum PixelFormat pix_fmt;
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756
757 /**
758 * Frame rate emulation. If not zero lower layer (i.e. format handler)
759 * has to read frames at native frame rate.
760 * - encoding: set by user.
761 * - decoding: unused.
762 */
763 int rate_emu;
764
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765 /**
766 * if non NULL, 'draw_horiz_band' is called by the libavcodec
767 * decoder to draw an horizontal band. It improve cache usage. Not
768 * all codecs can do that. You must check the codec capabilities
769 * before
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770 * - encoding: unused
771 * - decoding: set by user.
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772 * @param height the height of the slice
773 * @param y the y position of the slice
774 * @param type 1->top field, 2->bottom field, 3->frame
775 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 776 */
bf89e6b1 777 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 778 const AVFrame *src, int offset[4],
3bb07d61 779 int y, int type, int height);
bf89e6b1 780
de6d9b64 781 /* audio only */
64863965 782 int sample_rate; ///< samples per sec
de6d9b64 783 int channels;
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784
785 /**
786 * audio sample format.
787 * - encoding: set by user.
788 * - decoding: set by lavc.
789 */
790 enum SampleFormat sample_fmt; ///< sample format, currenly unused
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791
792 /* the following data should not be initialized */
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793 int frame_size; ///< in samples, initialized when calling 'init'
794 int frame_number; ///< audio or video frame number
795 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 796
b71901e6 797 /**
b71901e6 798 * number of frames the decoded output will be delayed relative to
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799 * the encoded input.
800 * - encoding: set by lavc.
801 * - decoding: unused
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802 */
803 int delay;
1ff662cc 804
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805 /* - encoding parameters */
806 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
807 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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808
809 /**
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810 * minimum quantizer.
811 * - encoding: set by user.
812 * - decoding: unused
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813 */
814 int qmin;
815
816 /**
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817 * maximum quantizer.
818 * - encoding: set by user.
819 * - decoding: unused
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820 */
821 int qmax;
822
823 /**
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824 * maximum quantizer difference etween frames.
825 * - encoding: set by user.
826 * - decoding: unused
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827 */
828 int max_qdiff;
829
830 /**
64863965 831 * maximum number of b frames between non b frames.
b71901e6 832 * note: the output will be delayed by max_b_frames+1 relative to the input
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833 * - encoding: set by user.
834 * - decoding: unused
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835 */
836 int max_b_frames;
837
838 /**
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839 * qscale factor between ip and b frames.
840 * - encoding: set by user.
841 * - decoding: unused
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842 */
843 float b_quant_factor;
844
845 /** obsolete FIXME remove */
846 int rc_strategy;
8b4c7dbc 847 int b_frame_strategy;
9dbcbd92 848
b71901e6 849 /**
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850 * hurry up amount.
851 * - encoding: unused
852 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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853 */
854 int hurry_up;
2417652e 855
de6d9b64 856 struct AVCodec *codec;
b71901e6 857
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FB
858 void *priv_data;
859
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860 /* unused, FIXME remove*/
861 int rtp_mode;
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J
862
863 int rtp_payload_size; /* The size of the RTP payload, the coder will */
864 /* do it's best to deliver a chunk with size */
865 /* below rtp_payload_size, the chunk will start */
866 /* with a start code on some codecs like H.263 */
867 /* This doesn't take account of any particular */
868 /* headers inside the transmited RTP payload */
81401c1f
J
869
870
871 /* The RTP callcack: This function is called */
872 /* every time the encoder as a packet to send */
873 /* Depends on the encoder if the data starts */
ebaa7e03
JB
874 /* with a Start Code (it should) H.263 does. */
875 /* mb_nb contains the number of macroblocks */
876 /* encoded in the RTP payload */
877 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 878
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879 /* statistics, used for 2-pass encoding */
880 int mv_bits;
881 int header_bits;
882 int i_tex_bits;
883 int p_tex_bits;
884 int i_count;
885 int p_count;
886 int skip_count;
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887 int misc_bits;
888
889 /**
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MN
890 * number of bits used for the previously encoded frame.
891 * - encoding: set by lavc
7004ffb3 892 * - decoding: unused
b71901e6 893 */
098eefe1 894 int frame_bits;
7004ffb3 895
b71901e6 896 /**
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897 * private data of the user, can be used to carry app specific stuff.
898 * - encoding: set by user
899 * - decoding: set by user
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900 */
901 void *opaque;
902
de6d9b64 903 char codec_name[32];
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PG
904 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
905 enum CodecID codec_id; /* see CODEC_ID_xxx */
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MN
906
907 /**
908 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
909 * this is used to workaround some encoder bugs
bd5a6020 910 * - encoding: set by user, if not then the default based on codec_id will be used
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911 * - decoding: set by user, will be converted to upper case by lavc during init
912 */
913 unsigned int codec_tag;
92ba5ffb 914
b71901e6 915 /**
64863965 916 * workaround bugs in encoders which sometimes cannot be detected automatically.
59fa3f96 917 * - encoding: set by user
64863965 918 * - decoding: set by user
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919 */
920 int workaround_bugs;
64863965 921#define FF_BUG_AUTODETECT 1 ///< autodetection
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922#define FF_BUG_OLD_MSMPEG4 2
923#define FF_BUG_XVID_ILACE 4
924#define FF_BUG_UMP4 8
925#define FF_BUG_NO_PADDING 16
3116cb14 926#define FF_BUG_AMV 32
ac0c6638 927#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 928#define FF_BUG_QPEL_CHROMA 64
db794953 929#define FF_BUG_STD_QPEL 128
36df8805 930#define FF_BUG_QPEL_CHROMA2 256
c40c3482 931#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 932#define FF_BUG_EDGE 1024
b44bdf7e 933#define FF_BUG_HPEL_CHROMA 2048
4ccde216 934#define FF_BUG_DC_CLIP 4096
59fa3f96 935#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
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936//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
937
b71901e6 938 /**
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939 * luma single coeff elimination threshold.
940 * - encoding: set by user
941 * - decoding: unused
b71901e6 942 */
1f6b6e50 943 int luma_elim_threshold;
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944
945 /**
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946 * chroma single coeff elimination threshold.
947 * - encoding: set by user
948 * - decoding: unused
b71901e6 949 */
1f6b6e50 950 int chroma_elim_threshold;
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951
952 /**
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953 * strictly follow the std (MPEG4, ...).
954 * - encoding: set by user
955 * - decoding: unused
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956 */
957 int strict_std_compliance;
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958#define FF_COMPLIANCE_VERY_STRICT 2 ///< strictly conform to a older more strict version of the spec or reference software
959#define FF_COMPLIANCE_STRICT 1 ///< strictly conform to all the things in the spec no matter what consequences
960#define FF_COMPLIANCE_NORMAL 0
961#define FF_COMPLIANCE_INOFFICIAL -1 ///< allow inofficial extensions
962#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
963
b71901e6 964 /**
64863965 965 * qscale offset between ip and b frames.
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966 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
967 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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968 * - encoding: set by user.
969 * - decoding: unused
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970 */
971 float b_quant_offset;
972
973 /**
ce3bcaed 974 * error resilience higher values will detect more errors but may missdetect
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975 * some more or less valid parts as errors.
976 * - encoding: unused
977 * - decoding: set by user
b71901e6 978 */
1f6b6e50 979 int error_resilience;
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980#define FF_ER_CAREFULL 1
981#define FF_ER_COMPLIANT 2
982#define FF_ER_AGGRESSIVE 3
983#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 984
6b72ac63 985 /**
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986 * called at the beginning of each frame to get a buffer for it.
987 * if pic.reference is set then the frame will be read later by lavc
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988 * avcodec_align_dimensions() should be used to find the required width and
989 * height, as they normally need to be rounded up to the next multiple of 16
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990 * - encoding: unused
991 * - decoding: set by lavc, user can override
b71901e6 992 */
492cd3a9 993 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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994
995 /**
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996 * called to release buffers which where allocated with get_buffer.
997 * a released buffer can be reused in get_buffer()
998 * pic.data[*] must be set to NULL
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999 * - encoding: unused
1000 * - decoding: set by lavc, user can override
b71901e6 1001 */
492cd3a9 1002 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 1003
b71901e6 1004 /**
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1005 * if 1 the stream has a 1 frame delay during decoding.
1006 * - encoding: set by lavc
64863965 1007 * - decoding: set by lavc
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1008 */
1009 int has_b_frames;
b71901e6 1010
64863965 1011 int block_align; ///< used by some WAV based audio codecs
ce980a95 1012
64863965 1013 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1014 (function avcodec_parse_frame()). The frame
1015 data is returned. Only MPEG codecs support this now. */
ce980a95 1016
b71901e6 1017 /**
e4eadb4b 1018 * 0-> h263 quant 1-> mpeg quant.
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1019 * - encoding: set by user.
1020 * - decoding: unused
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1021 */
1022 int mpeg_quant;
ce980a95 1023
b71901e6 1024 /**
64863965
MN
1025 * pass1 encoding statistics output buffer.
1026 * - encoding: set by lavc
1027 * - decoding: unused
b71901e6 1028 */
64863965 1029 char *stats_out;
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MN
1030
1031 /**
1032 * pass2 encoding statistics input buffer.
1033 * concatenated stuff from stats_out of pass1 should be placed here
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1034 * - encoding: allocated/set/freed by user
1035 * - decoding: unused
b71901e6
MN
1036 */
1037 char *stats_in;
1038
1039 /**
64863965 1040 * ratecontrol qmin qmax limiting method.
b71901e6 1041 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
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1042 * - encoding: set by user.
1043 * - decoding: unused
b71901e6 1044 */
ce980a95 1045 float rc_qsquish;
b71901e6 1046
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MN
1047 float rc_qmod_amp;
1048 int rc_qmod_freq;
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MN
1049
1050 /**
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MN
1051 * ratecontrol override, see RcOverride.
1052 * - encoding: allocated/set/freed by user.
1053 * - decoding: unused
b71901e6 1054 */
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1055 RcOverride *rc_override;
1056 int rc_override_count;
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MN
1057
1058 /**
64863965
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1059 * rate control equation.
1060 * - encoding: set by user
1061 * - decoding: unused
b71901e6 1062 */
ce980a95 1063 char *rc_eq;
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MN
1064
1065 /**
64863965
MN
1066 * maximum bitrate.
1067 * - encoding: set by user.
1068 * - decoding: unused
b71901e6 1069 */
ce980a95 1070 int rc_max_rate;
b71901e6
MN
1071
1072 /**
64863965
MN
1073 * minimum bitrate.
1074 * - encoding: set by user.
1075 * - decoding: unused
b71901e6 1076 */
ce980a95 1077 int rc_min_rate;
b71901e6
MN
1078
1079 /**
64863965
MN
1080 * decoder bitstream buffer size.
1081 * - encoding: set by user.
1082 * - decoding: unused
b71901e6 1083 */
ce980a95
MN
1084 int rc_buffer_size;
1085 float rc_buffer_aggressivity;
b71901e6
MN
1086
1087 /**
64863965 1088 * qscale factor between p and i frames.
a1e257b2
MN
1089 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1090 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1091 * - encoding: set by user.
1092 * - decoding: unused
b71901e6
MN
1093 */
1094 float i_quant_factor;
1095
1096 /**
64863965 1097 * qscale offset between p and i frames.
64863965
MN
1098 * - encoding: set by user.
1099 * - decoding: unused
b71901e6
MN
1100 */
1101 float i_quant_offset;
1102
1103 /**
64863965
MN
1104 * initial complexity for pass1 ratecontrol.
1105 * - encoding: set by user.
1106 * - decoding: unused
b71901e6 1107 */
ce980a95 1108 float rc_initial_cplx;
917e06c8 1109
b71901e6 1110 /**
64863965
MN
1111 * dct algorithm, see FF_DCT_* below.
1112 * - encoding: set by user
1113 * - decoding: unused
b71901e6 1114 */
28db7fce 1115 int dct_algo;
c7e07931 1116#define FF_DCT_AUTO 0
28db7fce 1117#define FF_DCT_FASTINT 1
c7e07931
MO
1118#define FF_DCT_INT 2
1119#define FF_DCT_MMX 3
1120#define FF_DCT_MLIB 4
05c4072b 1121#define FF_DCT_ALTIVEC 5
65e4c8c9 1122#define FF_DCT_FAAN 6
c5d309f2
MN
1123
1124 /**
64863965
MN
1125 * luminance masking (0-> disabled).
1126 * - encoding: set by user
1127 * - decoding: unused
c5d309f2
MN
1128 */
1129 float lumi_masking;
1130
1131 /**
64863965
MN
1132 * temporary complexity masking (0-> disabled).
1133 * - encoding: set by user
1134 * - decoding: unused
c5d309f2
MN
1135 */
1136 float temporal_cplx_masking;
1137
1138 /**
64863965
MN
1139 * spatial complexity masking (0-> disabled).
1140 * - encoding: set by user
1141 * - decoding: unused
c5d309f2
MN
1142 */
1143 float spatial_cplx_masking;
1144
1145 /**
64863965
MN
1146 * p block masking (0-> disabled).
1147 * - encoding: set by user
1148 * - decoding: unused
c5d309f2
MN
1149 */
1150 float p_masking;
15415af4 1151
5e746b99 1152 /**
64863965
MN
1153 * darkness masking (0-> disabled).
1154 * - encoding: set by user
1155 * - decoding: unused
5e746b99
MN
1156 */
1157 float dark_masking;
0c2dd16e 1158
3a694b04
NK
1159
1160 /* for binary compatibility */
1161 int unused;
1162
0c2dd16e 1163 /**
64863965
MN
1164 * idct algorithm, see FF_IDCT_* below.
1165 * - encoding: set by user
1166 * - decoding: set by user
2ad1516a
MN
1167 */
1168 int idct_algo;
1169#define FF_IDCT_AUTO 0
1170#define FF_IDCT_INT 1
1171#define FF_IDCT_SIMPLE 2
1172#define FF_IDCT_SIMPLEMMX 3
1173#define FF_IDCT_LIBMPEG2MMX 4
1174#define FF_IDCT_PS2 5
1175#define FF_IDCT_MLIB 6
1176#define FF_IDCT_ARM 7
05c4072b 1177#define FF_IDCT_ALTIVEC 8
b82cdc72 1178#define FF_IDCT_SH4 9
bd7d1ea7 1179#define FF_IDCT_SIMPLEARM 10
0fa8158d 1180#define FF_IDCT_H264 11
8b6103da 1181#define FF_IDCT_VP3 12
2ad1516a 1182
144f0625 1183 /**
64863965
MN
1184 * slice count.
1185 * - encoding: set by lavc
1186 * - decoding: set by user (or 0)
144f0625
MN
1187 */
1188 int slice_count;
1189 /**
64863965
MN
1190 * slice offsets in the frame in bytes.
1191 * - encoding: set/allocated by lavc
1192 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1193 */
1194 int *slice_offset;
1195
4d2858de 1196 /**
64863965
MN
1197 * error concealment flags.
1198 * - encoding: unused
1199 * - decoding: set by user
4d2858de
MN
1200 */
1201 int error_concealment;
1202#define FF_EC_GUESS_MVS 1
1203#define FF_EC_DEBLOCK 2
1204
6b72ac63 1205 /**
bec89a84 1206 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1207 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1208 *
1209 * with FORCE flag you may instead enable given CPU features
1210 * (Dangerous: usable in case of misdetection, improper usage however will
1211 * result into program crash)
1212 */
1213 unsigned dsp_mask;
1214#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1215 /* lower 16 bits - CPU features */
1216#ifdef HAVE_MMX
1217#define FF_MM_MMX 0x0001 /* standard MMX */
1218#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1219#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1220#define FF_MM_SSE 0x0008 /* SSE functions */
1221#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
e42a152b 1222#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1223#endif /* HAVE_MMX */
11f18faf
MN
1224
1225 /**
64863965
MN
1226 * bits per sample/pixel from the demuxer (needed for huffyuv).
1227 * - encoding: set by lavc
1228 * - decoding: set by user
11f18faf
MN
1229 */
1230 int bits_per_sample;
1231
1232 /**
64863965
MN
1233 * prediction method (needed for huffyuv).
1234 * - encoding: set by user
1235 * - decoding: unused
11f18faf
MN
1236 */
1237 int prediction_method;
1238#define FF_PRED_LEFT 0
1239#define FF_PRED_PLANE 1
1240#define FF_PRED_MEDIAN 2
5d3cea3a
MN
1241
1242 /**
5ff85f1d 1243 * sample aspect ratio (0 if unknown).
1f26c6f3 1244 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
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1245 * - encoding: set by user.
1246 * - decoding: set by lavc.
5d3cea3a 1247 */
5ff85f1d 1248 AVRational sample_aspect_ratio;
1e491e29
MN
1249
1250 /**
64863965
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1251 * the picture in the bitstream.
1252 * - encoding: set by lavc
1253 * - decoding: set by lavc
1e491e29 1254 */
492cd3a9 1255 AVFrame *coded_frame;
c8c437bc
MN
1256
1257 /**
64863965
MN
1258 * debug.
1259 * - encoding: set by user.
1260 * - decoding: set by user.
c8c437bc
MN
1261 */
1262 int debug;
1263#define FF_DEBUG_PICT_INFO 1
1264#define FF_DEBUG_RC 2
1265#define FF_DEBUG_BITSTREAM 4
1266#define FF_DEBUG_MB_TYPE 8
1267#define FF_DEBUG_QP 16
1268#define FF_DEBUG_MV 32
8289c6fa 1269#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1270#define FF_DEBUG_SKIP 0x00000080
1271#define FF_DEBUG_STARTCODE 0x00000100
1272#define FF_DEBUG_PTS 0x00000200
46b4feec 1273#define FF_DEBUG_ER 0x00000400
0da71265 1274#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1275#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1276#define FF_DEBUG_VIS_QP 0x00002000
1277#define FF_DEBUG_VIS_MB_TYPE 0x00004000
140cb663
MN
1278
1279 /**
0c9bbaec
WH
1280 * debug.
1281 * - encoding: set by user.
1282 * - decoding: set by user.
1283 */
1284 int debug_mv;
1285#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1286#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1287#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1288
1289 /**
64863965
MN
1290 * error.
1291 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1292 * - decoding: unused
140cb663
MN
1293 */
1294 uint64_t error[4];
17a70fde
MN
1295
1296 /**
64863965 1297 * minimum MB quantizer.
6e0d8c06 1298 * - encoding: unused
64863965 1299 * - decoding: unused
17a70fde
MN
1300 */
1301 int mb_qmin;
1302
1303 /**
64863965 1304 * maximum MB quantizer.
6e0d8c06 1305 * - encoding: unused
64863965 1306 * - decoding: unused
17a70fde
MN
1307 */
1308 int mb_qmax;
1457ab52
MN
1309
1310 /**
64863965
MN
1311 * motion estimation compare function.
1312 * - encoding: set by user.
1313 * - decoding: unused
1457ab52
MN
1314 */
1315 int me_cmp;
1316 /**
64863965
MN
1317 * subpixel motion estimation compare function.
1318 * - encoding: set by user.
1319 * - decoding: unused
1457ab52
MN
1320 */
1321 int me_sub_cmp;
1322 /**
64863965
MN
1323 * macroblock compare function (not supported yet).
1324 * - encoding: set by user.
1325 * - decoding: unused
1457ab52
MN
1326 */
1327 int mb_cmp;
622348f9
MN
1328 /**
1329 * interlaced dct compare function
1330 * - encoding: set by user.
1331 * - decoding: unused
1332 */
1333 int ildct_cmp;
1457ab52
MN
1334#define FF_CMP_SAD 0
1335#define FF_CMP_SSE 1
1336#define FF_CMP_SATD 2
1337#define FF_CMP_DCT 3
1338#define FF_CMP_PSNR 4
1339#define FF_CMP_BIT 5
1340#define FF_CMP_RD 6
1341#define FF_CMP_ZERO 7
622348f9
MN
1342#define FF_CMP_VSAD 8
1343#define FF_CMP_VSSE 9
e6a2ac34 1344#define FF_CMP_NSSE 10
26efc54e
MN
1345#define FF_CMP_W53 11
1346#define FF_CMP_W97 12
0fd6aea1 1347#define FF_CMP_DCTMAX 13
1457ab52
MN
1348#define FF_CMP_CHROMA 256
1349
1350 /**
64863965
MN
1351 * ME diamond size & shape.
1352 * - encoding: set by user.
1353 * - decoding: unused
1457ab52
MN
1354 */
1355 int dia_size;
b07a5980
MN
1356
1357 /**
64863965
MN
1358 * amount of previous MV predictors (2a+1 x 2a+1 square).
1359 * - encoding: set by user.
1360 * - decoding: unused
b07a5980
MN
1361 */
1362 int last_predictor_count;
70ac76c0 1363
f5fb6b34 1364 /**
64863965
MN
1365 * pre pass for motion estimation.
1366 * - encoding: set by user.
1367 * - decoding: unused
f5fb6b34
MN
1368 */
1369 int pre_me;
b07a5980 1370
70ac76c0 1371 /**
64863965
MN
1372 * motion estimation pre pass compare function.
1373 * - encoding: set by user.
1374 * - decoding: unused
70ac76c0
MN
1375 */
1376 int me_pre_cmp;
826f429a 1377
70ac76c0 1378 /**
64863965
MN
1379 * ME pre pass diamond size & shape.
1380 * - encoding: set by user.
1381 * - decoding: unused
70ac76c0
MN
1382 */
1383 int pre_dia_size;
1384
826f429a 1385 /**
64863965
MN
1386 * subpel ME quality.
1387 * - encoding: set by user.
1388 * - decoding: unused
826f429a
MN
1389 */
1390 int me_subpel_quality;
1391
a33c7159 1392 /**
64863965 1393 * callback to negotiate the pixelFormat.
a33c7159
MN
1394 * @param fmt is the list of formats which are supported by the codec,
1395 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1396 * the first is allways the native one
1397 * @return the choosen format
64863965
MN
1398 * - encoding: unused
1399 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1400 */
494c56d3 1401 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1402
1403 /**
1404 * DTG active format information (additionnal aspect ratio
1405 * information only used in DVB MPEG2 transport streams). 0 if
1406 * not set.
1407 *
64863965
MN
1408 * - encoding: unused.
1409 * - decoding: set by decoder
e2f9490e
FB
1410 */
1411 int dtg_active_format;
1412#define FF_DTG_AFD_SAME 8
1413#define FF_DTG_AFD_4_3 9
1414#define FF_DTG_AFD_16_9 10
1415#define FF_DTG_AFD_14_9 11
1416#define FF_DTG_AFD_4_3_SP_14_9 13
1417#define FF_DTG_AFD_16_9_SP_14_9 14
1418#define FF_DTG_AFD_SP_4_3 15
1419
ebbcdc9a
MN
1420 /**
1421 * Maximum motion estimation search range in subpel units.
1422 * if 0 then no limit
1423 *
64863965
MN
1424 * - encoding: set by user.
1425 * - decoding: unused.
ebbcdc9a 1426 */
59e0ac8e 1427 int me_range;
ebbcdc9a 1428
65f7062d 1429 /**
1984f635
MN
1430 * intra quantizer bias.
1431 * - encoding: set by user.
1432 * - decoding: unused
1433 */
1434 int intra_quant_bias;
1435#define FF_DEFAULT_QUANT_BIAS 999999
1436
1437 /**
1438 * inter quantizer bias.
1439 * - encoding: set by user.
1440 * - decoding: unused
1441 */
1442 int inter_quant_bias;
5cd62665
ZK
1443
1444 /**
1445 * color table ID.
1446 * - encoding: unused.
1447 * - decoding: which clrtable should be used for 8bit RGB images
1448 * table have to be stored somewhere FIXME
1449 */
1450 int color_table_id;
1984f635 1451
d90cf87b
MN
1452 /**
1453 * internal_buffer count.
1454 * Dont touch, used by lavc default_get_buffer()
1455 */
1456 int internal_buffer_count;
1457
1458 /**
1459 * internal_buffers.
1460 * Dont touch, used by lavc default_get_buffer()
1461 */
1462 void *internal_buffer;
158c7f05
MN
1463
1464#define FF_LAMBDA_SHIFT 7
1465#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1466#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1467#define FF_LAMBDA_MAX (256*128-1)
1468
1469#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1470 /**
1471 * global quality for codecs which cannot change it per frame.
1472 * this should be proportional to MPEG1/2/4 qscale.
1473 * - encoding: set by user.
1474 * - decoding: unused
1475 */
1476 int global_quality;
11e659c2
MN
1477
1478#define FF_CODER_TYPE_VLC 0
1479#define FF_CODER_TYPE_AC 1
1480 /**
1481 * coder type
1482 * - encoding: set by user.
1483 * - decoding: unused
1484 */
1485 int coder_type;
1486
1487 /**
1488 * context model
1489 * - encoding: set by user.
1490 * - decoding: unused
1491 */
1492 int context_model;
3bb07d61
MN
1493
1494 /**
1495 * slice flags
1496 * - encoding: unused
1497 * - decoding: set by user.
1498 */
1499 int slice_flags;
1500#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1501#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1502#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1503
fb364ada
IK
1504 /**
1505 * XVideo Motion Acceleration
1506 * - encoding: forbidden
1507 * - decoding: set by decoder
1508 */
1509 int xvmc_acceleration;
7d1c3fc1
MN
1510
1511 /**
1512 * macroblock decision mode
1513 * - encoding: set by user.
1514 * - decoding: unused
1515 */
1516 int mb_decision;
1517#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1518#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1519#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1520
1521 /**
1522 * custom intra quantization matrix
1523 * - encoding: set by user, can be NULL
1524 * - decoding: set by lavc
1525 */
1526 uint16_t *intra_matrix;
1527
1528 /**
1529 * custom inter quantization matrix
1530 * - encoding: set by user, can be NULL
1531 * - decoding: set by lavc
1532 */
1533 uint16_t *inter_matrix;
7d1c3fc1 1534
541ae140
MN
1535 /**
1536 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1537 * this is used to workaround some encoder bugs
1538 * - encoding: unused
1539 * - decoding: set by user, will be converted to upper case by lavc during init
1540 */
1541 unsigned int stream_codec_tag;
05fbd0a2
MN
1542
1543 /**
1544 * scene change detection threshold.
1545 * 0 is default, larger means fewer detected scene changes
1546 * - encoding: set by user.
1547 * - decoding: unused
1548 */
1549 int scenechange_threshold;
158c7f05
MN
1550
1551 /**
1552 * minimum lagrange multipler
1553 * - encoding: set by user.
1554 * - decoding: unused
1555 */
1556 int lmin;
1557
1558 /**
1559 * maximum lagrange multipler
1560 * - encoding: set by user.
1561 * - decoding: unused
1562 */
1563 int lmax;
2a2bbcb0
MM
1564
1565 /**
1566 * Palette control structure
1567 * - encoding: ??? (no palette-enabled encoder yet)
1568 * - decoding: set by user.
1569 */
1570 struct AVPaletteControl *palctrl;
821cb11f
MN
1571
1572 /**
1573 * noise reduction strength
1574 * - encoding: set by user.
1575 * - decoding: unused
1576 */
1577 int noise_reduction;
fa384dcc 1578
074c4ca7 1579 /**
e1c2a5a0
RT
1580 * called at the beginning of a frame to get cr buffer for it.
1581 * buffer type (size, hints) must be the same. lavc won't check it.
1582 * lavc will pass previous buffer in pic, function should return
1583 * same buffer or new buffer with old frame "painted" into it.
1584 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1585 * - encoding: unused
e1c2a5a0 1586 * - decoding: set by lavc, user can override
074c4ca7 1587 */
e1c2a5a0 1588 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1589
1590 /**
1591 * number of bits which should be loaded into the rc buffer before decoding starts
1592 * - encoding: set by user.
1593 * - decoding: unused
1594 */
1595 int rc_initial_buffer_occupancy;
1596
1597 /**
1598 *
1599 * - encoding: set by user.
1600 * - decoding: unused
1601 */
1602 int inter_threshold;
1603
1604 /**
1605 * CODEC_FLAG2_*.
1606 * - encoding: set by user.
1607 * - decoding: set by user.
1608 */
1609 int flags2;
7ebfc0ea
MN
1610
1611 /**
1612 * simulates errors in the bitstream to test error concealment.
1613 * - encoding: set by user.
1614 * - decoding: unused.
1615 */
1616 int error_rate;
a1e257b2
MN
1617
1618 /**
1619 * MP3 antialias algorithm, see FF_AA_* below.
1620 * - encoding: unused
1621 * - decoding: set by user
1622 */
1623 int antialias_algo;
1624#define FF_AA_AUTO 0
1625#define FF_AA_FASTINT 1 //not implemented yet
1626#define FF_AA_INT 2
1627#define FF_AA_FLOAT 3
77ea0d4b
MN
1628 /**
1629 * Quantizer noise shaping.
1630 * - encoding: set by user
1631 * - decoding: unused
1632 */
1633 int quantizer_noise_shaping;
9c3d33d6
MN
1634
1635 /**
1636 * Thread count.
1637 * is used to decide how many independant tasks should be passed to execute()
1638 * - encoding: set by user
1639 * - decoding: set by user
1640 */
1641 int thread_count;
1642
1643 /**
1644 * the codec may call this to execute several independant things. it will return only after
1645 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1646 * default implementation will execute the parts serially
399cec2f 1647 * @param count the number of things to execute
9c3d33d6
MN
1648 * - encoding: set by lavc, user can override
1649 * - decoding: set by lavc, user can override
1650 */
1651 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1652
1653 /**
1654 * Thread opaque.
1655 * can be used by execute() to store some per AVCodecContext stuff.
1656 * - encoding: set by execute()
1657 * - decoding: set by execute()
1658 */
1659 void *thread_opaque;
a4d36c11
MN
1660
1661 /**
f20f8a8b
MN
1662 * Motion estimation threshold. under which no motion estimation is
1663 * performed, but instead the user specified motion vectors are used
a4d36c11
MN
1664 *
1665 * - encoding: set by user
f20f8a8b 1666 * - decoding: unused
a4d36c11 1667 */
2750b827 1668 int me_threshold;
f20f8a8b
MN
1669
1670 /**
1671 * Macroblock threshold. under which the user specified macroblock types will be used
1672 * - encoding: set by user
1673 * - decoding: unused
1674 */
1675 int mb_threshold;
bf266e19
MN
1676
1677 /**
d4c5d2ad 1678 * precision of the intra dc coefficient - 8.
bf266e19
MN
1679 * - encoding: set by user
1680 * - decoding: unused
1681 */
1682 int intra_dc_precision;
d4c5d2ad
MN
1683
1684 /**
1685 * noise vs. sse weight for the nsse comparsion function.
1686 * - encoding: set by user
1687 * - decoding: unused
1688 */
1689 int nsse_weight;
0dfd33c3
MN
1690
1691 /**
160d679c 1692 * number of macroblock rows at the top which are skipped.
0dfd33c3
MN
1693 * - encoding: unused
1694 * - decoding: set by user
1695 */
1696 int skip_top;
1697
1698 /**
160d679c 1699 * number of macroblock rows at the bottom which are skipped.
0dfd33c3
MN
1700 * - encoding: unused
1701 * - decoding: set by user
1702 */
1703 int skip_bottom;
baced9f5
MN
1704
1705 /**
1706 * profile
1707 * - encoding: set by user
1708 * - decoding: set by lavc
1709 */
1710 int profile;
1711#define FF_PROFILE_UNKNOWN -99
1712
1713 /**
1714 * level
1715 * - encoding: set by user
1716 * - decoding: set by lavc
1717 */
1718 int level;
1719#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1720
1721 /**
1722 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1723 * - encoding: unused
1724 * - decoding: set by user
1725 */
1726 int lowres;
21adafec
MN
1727
1728 /**
bbf18b21 1729 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1730 * or other things are used
1731 * - encoding: unused
1732 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1733 */
1734 int coded_width, coded_height;
bbf18b21
MN
1735
1736 /**
1737 * frame skip threshold
1738 * - encoding: set by user
1739 * - decoding: unused
1740 */
1741 int frame_skip_threshold;
1742
1743 /**
1744 * frame skip factor
1745 * - encoding: set by user
1746 * - decoding: unused
1747 */
1748 int frame_skip_factor;
0fd6aea1
MN
1749
1750 /**
1751 * frame skip exponent
1752 * - encoding: set by user
1753 * - decoding: unused
1754 */
1755 int frame_skip_exp;
1756
1757 /**
1758 * frame skip comparission function
1759 * - encoding: set by user.
1760 * - decoding: unused
1761 */
1762 int frame_skip_cmp;
957c743a
CM
1763
1764 /**
1765 * border processing masking. raises the quantizer for mbs on the borders
1766 * of the picture.
1767 * - encoding: set by user
1768 * - decoding: unused
1769 */
1770 float border_masking;
6e0d8c06
MN
1771
1772 /**
1773 * minimum MB lagrange multipler.
1774 * - encoding: set by user.
1775 * - decoding: unused
1776 */
1777 int mb_lmin;
1778
1779 /**
1780 * maximum MB lagrange multipler.
1781 * - encoding: set by user.
1782 * - decoding: unused
1783 */
1784 int mb_lmax;
09c3e44e
MN
1785
1786 /**
1787 *
1788 * - encoding: set by user.
1789 * - decoding: unused
1790 */
1791 int me_penalty_compensation;
de6d9b64
FB
1792} AVCodecContext;
1793
97d96aaa 1794
64863965
MN
1795/**
1796 * AVOption.
1797 */
97d96aaa
ZK
1798typedef struct AVOption {
1799 /** options' name */
1800 const char *name; /* if name is NULL, it indicates a link to next */
bec89a84
ZK
1801 /** short English text help or const struct AVOption* subpointer */
1802 const char *help; // const struct AVOption* sub;
97d96aaa
ZK
1803 /** offset to context structure where the parsed value should be stored */
1804 int offset;
1805 /** options' type */
1806 int type;
64863965
MN
1807#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1808#define FF_OPT_TYPE_DOUBLE 2 ///< double
1809#define FF_OPT_TYPE_INT 3 ///< integer
1810#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1811#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1812//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1813#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1814#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1815 /** min value (min == max -> no limits) */
1816 double min;
1817 /** maximum value for double/int */
1818 double max;
1819 /** default boo [0,1]l/double/int value */
1820 double defval;
1821 /**
1822 * default string value (with optional semicolon delimited extra option-list
1823 * i.e. option1;option2;option3
1824 * defval might select other then first argument as default
1825 */
1826 const char *defstr;
97d96aaa
ZK
1827#define FF_OPT_MAX_DEPTH 10
1828} AVOption;
1829
64863965
MN
1830/**
1831 * AVCodec.
1832 */
de6d9b64 1833typedef struct AVCodec {
18f77016 1834 const char *name;
5d234974 1835 enum CodecType type;
9297ddd3 1836 enum CodecID id;
de6d9b64
FB
1837 int priv_data_size;
1838 int (*init)(AVCodecContext *);
0c1a9eda 1839 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1840 int (*close)(AVCodecContext *);
0fd90455 1841 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1842 uint8_t *buf, int buf_size);
bf89e6b1 1843 int capabilities;
40c5fa26 1844 void *dummy; // FIXME remove next time we break binary compatibility
de6d9b64 1845 struct AVCodec *next;
7a06ff14 1846 void (*flush)(AVCodecContext *);
b0df362b 1847 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1848 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1849} AVCodec;
1850
97d96aaa 1851/**
d7425f59
MN
1852 * four components are given, that's all.
1853 * the last component is alpha
1854 */
de6d9b64 1855typedef struct AVPicture {
0c1a9eda 1856 uint8_t *data[4];
cd394651 1857 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1858} AVPicture;
1859
ba118447
MM
1860/**
1861 * AVPaletteControl
1862 * This structure defines a method for communicating palette changes
1863 * between and demuxer and a decoder.
1864 */
2e99641b 1865#define AVPALETTE_SIZE 1024
432d84c3 1866#define AVPALETTE_COUNT 256
ba118447
MM
1867typedef struct AVPaletteControl {
1868
1869 /* demuxer sets this to 1 to indicate the palette has changed;
1870 * decoder resets to 0 */
1871 int palette_changed;
1872
2a2bbcb0
MM
1873 /* 4-byte ARGB palette entries, stored in native byte order; note that
1874 * the individual palette components should be on a 8-bit scale; if
1875 * the palette data comes from a IBM VGA native format, the component
1876 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1877 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1878
1879} AVPaletteControl;
1880
de6d9b64
FB
1881extern AVCodec ac3_encoder;
1882extern AVCodec mp2_encoder;
9d36bdc9 1883extern AVCodec mp3lame_encoder;
81e0d0b4 1884extern AVCodec oggvorbis_encoder;
5c5dea3f 1885extern AVCodec oggtheora_encoder;
29d48296 1886extern AVCodec faac_encoder;
1ddadfa9 1887extern AVCodec xvid_encoder;
de6d9b64 1888extern AVCodec mpeg1video_encoder;
029911d1 1889extern AVCodec mpeg2video_encoder;
1c3990db 1890extern AVCodec h261_encoder;
de6d9b64
FB
1891extern AVCodec h263_encoder;
1892extern AVCodec h263p_encoder;
d4f5d74a 1893extern AVCodec flv_encoder;
de6d9b64 1894extern AVCodec rv10_encoder;
68b94c35 1895extern AVCodec rv20_encoder;
6faa4645 1896extern AVCodec dvvideo_encoder;
de6d9b64 1897extern AVCodec mjpeg_encoder;
b1e6b355 1898extern AVCodec ljpeg_encoder;
4eff7cf4 1899extern AVCodec png_encoder;
5b6d5596
MN
1900extern AVCodec ppm_encoder;
1901extern AVCodec pgm_encoder;
1902extern AVCodec pgmyuv_encoder;
1903extern AVCodec pbm_encoder;
1904extern AVCodec pam_encoder;
bf89e6b1 1905extern AVCodec mpeg4_encoder;
84afee34
MN
1906extern AVCodec msmpeg4v1_encoder;
1907extern AVCodec msmpeg4v2_encoder;
1908extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1909extern AVCodec wmv1_encoder;
1910extern AVCodec wmv2_encoder;
11f18faf 1911extern AVCodec huffyuv_encoder;
f37b9768 1912extern AVCodec ffvhuff_encoder;
0da71265 1913extern AVCodec h264_encoder;
3d2e8cce 1914extern AVCodec asv1_encoder;
9b56edf5 1915extern AVCodec asv2_encoder;
be3564ed 1916extern AVCodec vcr1_encoder;
5e20f836 1917extern AVCodec ffv1_encoder;
791e7b83 1918extern AVCodec snow_encoder;
c3bf0288 1919extern AVCodec mdec_encoder;
a273bbfb 1920extern AVCodec zlib_encoder;
54f5fd22
AB
1921extern AVCodec sonic_encoder;
1922extern AVCodec sonic_ls_encoder;
3b64893d 1923extern AVCodec svq1_encoder;
6662ec29 1924extern AVCodec x264_encoder;
de6d9b64
FB
1925
1926extern AVCodec h263_decoder;
c6148de2 1927extern AVCodec h261_decoder;
bf89e6b1 1928extern AVCodec mpeg4_decoder;
84afee34
MN
1929extern AVCodec msmpeg4v1_decoder;
1930extern AVCodec msmpeg4v2_decoder;
1931extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1932extern AVCodec wmv1_decoder;
0151a6f5 1933extern AVCodec wmv2_decoder;
21aa398f
AB
1934extern AVCodec vc9_decoder;
1935extern AVCodec wmv3_decoder;
922bc38d
MN
1936extern AVCodec mpeg1video_decoder;
1937extern AVCodec mpeg2video_decoder;
c512b303 1938extern AVCodec mpegvideo_decoder;
fb364ada 1939extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1940extern AVCodec h263i_decoder;
d4f5d74a 1941extern AVCodec flv_decoder;
de6d9b64 1942extern AVCodec rv10_decoder;
68b94c35 1943extern AVCodec rv20_decoder;
3f05305d
MN
1944extern AVCodec rv30_decoder;
1945extern AVCodec rv40_decoder;
be8ffec9 1946extern AVCodec svq1_decoder;
8b82a956 1947extern AVCodec svq3_decoder;
020fcc94 1948extern AVCodec dvvideo_decoder;
bc8d1857
FB
1949extern AVCodec wmav1_decoder;
1950extern AVCodec wmav2_decoder;
4e66ab3b 1951extern AVCodec mjpeg_decoder;
b135d9fb 1952extern AVCodec mjpegb_decoder;
5e83dec4 1953extern AVCodec sp5x_decoder;
4eff7cf4 1954extern AVCodec png_decoder;
4b1f4f23 1955extern AVCodec mp2_decoder;
a96b68b7 1956extern AVCodec mp3_decoder;
1ede228a 1957extern AVCodec mp3adu_decoder;
d2a7718d 1958extern AVCodec mp3on4_decoder;
3f95e843
FR
1959extern AVCodec mace3_decoder;
1960extern AVCodec mace6_decoder;
11f18faf 1961extern AVCodec huffyuv_decoder;
f37b9768 1962extern AVCodec ffvhuff_decoder;
3aca208a 1963extern AVCodec oggvorbis_decoder;
5c5dea3f 1964extern AVCodec oggtheora_decoder;
f70f7c6d 1965extern AVCodec cyuv_decoder;
0da71265 1966extern AVCodec h264_decoder;
deabd4fd 1967extern AVCodec indeo3_decoder;
d86053a4 1968extern AVCodec vp3_decoder;
f44ee2c3 1969extern AVCodec theora_decoder;
891f64b3 1970extern AVCodec amr_nb_decoder;
bc634f6f 1971extern AVCodec amr_nb_encoder;
d663a1fd
MN
1972extern AVCodec amr_wb_encoder;
1973extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1974extern AVCodec aac_decoder;
1975extern AVCodec mpeg4aac_decoder;
3d2e8cce 1976extern AVCodec asv1_decoder;
9b56edf5 1977extern AVCodec asv2_decoder;
be3564ed 1978extern AVCodec vcr1_decoder;
3aff069b 1979extern AVCodec cljr_decoder;
5e20f836 1980extern AVCodec ffv1_decoder;
791e7b83 1981extern AVCodec snow_decoder;
8809cfee 1982extern AVCodec fourxm_decoder;
c3bf0288 1983extern AVCodec mdec_decoder;
3ef8be2b
MM
1984extern AVCodec roq_decoder;
1985extern AVCodec interplay_video_decoder;
9937e686 1986extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1987extern AVCodec rpza_decoder;
1988extern AVCodec cinepak_decoder;
1989extern AVCodec msrle_decoder;
1990extern AVCodec msvideo1_decoder;
6955a882 1991extern AVCodec vqa_decoder;
4120a53a 1992extern AVCodec idcin_decoder;
1dc1ed99 1993extern AVCodec eightbps_decoder;
11e29a41 1994extern AVCodec smc_decoder;
42cad81a 1995extern AVCodec flic_decoder;
fafa0b75
MM
1996extern AVCodec vmdvideo_decoder;
1997extern AVCodec vmdaudio_decoder;
9a4117d5 1998extern AVCodec truemotion1_decoder;
a273bbfb
RT
1999extern AVCodec mszh_decoder;
2000extern AVCodec zlib_decoder;
b8414bbd
NK
2001extern AVCodec ra_144_decoder;
2002extern AVCodec ra_288_decoder;
3ef8be2b
MM
2003extern AVCodec roq_dpcm_decoder;
2004extern AVCodec interplay_dpcm_decoder;
9937e686 2005extern AVCodec xan_dpcm_decoder;
d08d7142 2006extern AVCodec sol_dpcm_decoder;
54f5fd22 2007extern AVCodec sonic_decoder;
070ed1bc 2008extern AVCodec qtrle_decoder;
ac2570a8 2009extern AVCodec flac_decoder;
9d53d58e 2010extern AVCodec tscc_decoder;
d0a0bbd2 2011extern AVCodec ulti_decoder;
d08d7142 2012extern AVCodec qdraw_decoder;
ab711b3c 2013extern AVCodec xl_decoder;
acfd8f0f 2014extern AVCodec qpeg_decoder;
85ad5695 2015extern AVCodec shorten_decoder;
9c7fb608 2016extern AVCodec loco_decoder;
a8a15e9d 2017extern AVCodec wnv1_decoder;
589f8220 2018extern AVCodec aasc_decoder;
6d6d7970 2019extern AVCodec alac_decoder;
034eeaa1 2020extern AVCodec ws_snd1_decoder;
856dbbff 2021extern AVCodec indeo2_decoder;
0bde73d9 2022extern AVCodec vorbis_decoder;
b81f8949 2023extern AVCodec fraps_decoder;
de6d9b64 2024
a96b68b7
FB
2025/* pcm codecs */
2026#define PCM_CODEC(id, name) \
2027extern AVCodec name ## _decoder; \
f11d3f23 2028extern AVCodec name ## _encoder
a96b68b7
FB
2029
2030PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2031PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2032PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2033PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2034PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2035PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2036PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2037PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2038
0147f198
FR
2039/* adpcm codecs */
2040
2041PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2042PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
2043PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2044PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 2045PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 2046PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 2047PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 2048PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
2049PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2050PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 2051PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 2052PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
b3bfb299 2053PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
659c3692 2054PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
0147f198 2055
a96b68b7
FB
2056#undef PCM_CODEC
2057
2058/* dummy raw video codec */
63167088
RS
2059extern AVCodec rawvideo_encoder;
2060extern AVCodec rawvideo_decoder;
de6d9b64
FB
2061
2062/* the following codecs use external GPL libs */
de6d9b64 2063extern AVCodec ac3_decoder;
23c99253 2064extern AVCodec dts_decoder;
de6d9b64
FB
2065
2066/* resample.c */
2067
2068struct ReSampleContext;
aaaf1635 2069struct AVResampleContext;
de6d9b64
FB
2070
2071typedef struct ReSampleContext ReSampleContext;
2072
2073ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2074 int output_rate, int input_rate);
2075int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2076void audio_resample_close(ReSampleContext *s);
2077
6e225de2 2078struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
aaaf1635 2079int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 2080void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 2081void av_resample_close(struct AVResampleContext *c);
aaaf1635 2082
de6d9b64
FB
2083/* YUV420 format is assumed ! */
2084
2085struct ImgReSampleContext;
2086
2087typedef struct ImgReSampleContext ImgReSampleContext;
2088
2089ImgReSampleContext *img_resample_init(int output_width, int output_height,
2090 int input_width, int input_height);
ab6d194a
MN
2091
2092ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2093 int iwidth, int iheight,
2094 int topBand, int bottomBand,
1ff93ffc
TK
2095 int leftBand, int rightBand,
2096 int padtop, int padbottom,
2097 int padleft, int padright);
2098
ab6d194a 2099
de6d9b64 2100void img_resample(ImgReSampleContext *s,
da64ecc3 2101 AVPicture *output, const AVPicture *input);
de6d9b64
FB
2102
2103void img_resample_close(ImgReSampleContext *s);
2104
75917b88
DH
2105/**
2106 * Allocate memory for a picture. Call avpicture_free to free it.
2107 *
2108 * @param picture the picture to be filled in.
2109 * @param pix_fmt the format of the picture.
2110 * @param width the width of the picture.
2111 * @param height the height of the picture.
2112 * @return 0 if successful, -1 if not.
2113 */
2114int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2115
2116/* Free a picture previously allocated by avpicture_alloc. */
2117void avpicture_free(AVPicture *picture);
2118
0c1a9eda 2119int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 2120 int pix_fmt, int width, int height);
da64ecc3 2121int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 2122 unsigned char *dest, int dest_size);
219b06c6 2123int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
2124void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2125const char *avcodec_get_pix_fmt_name(int pix_fmt);
21adafec 2126void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
63167088 2127enum PixelFormat avcodec_get_pix_fmt(const char* name);
d07730dd 2128unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
219b06c6 2129
fab21997
FB
2130#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
2131#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
2132#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
2133#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
2134#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
2135#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2136
2137int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2138 int has_alpha);
2139int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2140 int has_alpha, int *loss_ptr);
2141
0469baf1
FB
2142#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
2143#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
2144int img_get_alpha_info(const AVPicture *src,
2145 int pix_fmt, int width, int height);
0469baf1 2146
219b06c6
FB
2147/* convert among pixel formats */
2148int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 2149 const AVPicture *src, int pix_fmt,
219b06c6
FB
2150 int width, int height);
2151
2152/* deinterlace a picture */
da64ecc3 2153int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2154 int pix_fmt, int width, int height);
2155
2156/* external high level API */
2157
2158extern AVCodec *first_avcodec;
2159
156e5023 2160/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 2161unsigned avcodec_version(void);
8bceb6af 2162/* returns LIBAVCODEC_BUILD constant */
51a49663 2163unsigned avcodec_build(void);
de6d9b64
FB
2164void avcodec_init(void);
2165
2166void register_avcodec(AVCodec *format);
2167AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 2168AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
2169AVCodec *avcodec_find_decoder(enum CodecID id);
2170AVCodec *avcodec_find_decoder_by_name(const char *name);
2171void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2172
1e491e29 2173void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 2174AVCodecContext *avcodec_alloc_context(void);
7906085f 2175void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 2176AVFrame *avcodec_alloc_frame(void);
1e491e29 2177
492cd3a9
MN
2178int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2179void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
2180int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2181void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
0ecca7a4 2182int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
3a569751 2183enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 2184
5a815088
MN
2185int avcodec_thread_init(AVCodecContext *s, int thread_count);
2186void avcodec_thread_free(AVCodecContext *s);
2187int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 2188int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
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2189//FIXME func typedef
2190
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2191/**
2192 * opens / inits the AVCodecContext.
2193 * not thread save!
2194 */
de6d9b64 2195int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 2196
0c1a9eda 2197int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2198 int *frame_size_ptr,
0c1a9eda 2199 uint8_t *buf, int buf_size);
492cd3a9 2200int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2201 int *got_picture_ptr,
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2202 uint8_t *buf, int buf_size);
2203int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2204 int *data_size_ptr,
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2205 uint8_t *buf, int buf_size);
2206int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2207 const short *samples);
0c1a9eda 2208int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2209 const AVFrame *pict);
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2210
2211int avcodec_close(AVCodecContext *avctx);
2212
2213void avcodec_register_all(void);
a96b68b7 2214
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2215void avcodec_flush_buffers(AVCodecContext *avctx);
2216
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MR
2217void avcodec_default_free_buffers(AVCodecContext *s);
2218
14bea432 2219/* misc usefull functions */
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2220
2221/**
2222 * returns a single letter to describe the picture type
2223 */
2224char av_get_pict_type_char(int pict_type);
2225
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2226/**
2227 * reduce a fraction.
2228 * this is usefull for framerate calculations
2229 * @param max the maximum allowed for dst_nom & dst_den
2230 * @return 1 if exact, 0 otherwise
2231 */
2232int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2233
2234/**
1f018225 2235 * rescale a 64bit integer with rounding to nearest.
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2236 * a simple a*b/c isnt possible as it can overflow
2237 */
4c263142 2238int64_t av_rescale(int64_t a, int64_t b, int64_t c);
628d601b 2239
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2240/**
2241 * rescale a 64bit integer with specified rounding.
2242 * a simple a*b/c isnt possible as it can overflow
2243 */
2244int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
628d601b 2245
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2246/**
2247 * rescale a 64bit integer by 2 rational numbers.
2248 */
2249int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq);
2250
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2251/* frame parsing */
2252typedef struct AVCodecParserContext {
2253 void *priv_data;
2254 struct AVCodecParser *parser;
2255 int64_t frame_offset; /* offset of the current frame */
2256 int64_t cur_offset; /* current offset
2257 (incremented by each av_parser_parse()) */
2258 int64_t last_frame_offset; /* offset of the last frame */
2259 /* video info */
2260 int pict_type; /* XXX: put it back in AVCodecContext */
2261 int repeat_pict; /* XXX: put it back in AVCodecContext */
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2262 int64_t pts; /* pts of the current frame */
2263 int64_t dts; /* dts of the current frame */
2264
2265 /* private data */
2266 int64_t last_pts;
2267 int64_t last_dts;
a62aecce 2268 int fetch_timestamp;
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2269
2270#define AV_PARSER_PTS_NB 4
2271 int cur_frame_start_index;
2272 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2273 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2274 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
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2275} AVCodecParserContext;
2276
2277typedef struct AVCodecParser {
99f06236 2278 int codec_ids[5]; /* several codec IDs are permitted */
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2279 int priv_data_size;
2280 int (*parser_init)(AVCodecParserContext *s);
2281 int (*parser_parse)(AVCodecParserContext *s,
2282 AVCodecContext *avctx,
2283 uint8_t **poutbuf, int *poutbuf_size,
2284 const uint8_t *buf, int buf_size);
2285 void (*parser_close)(AVCodecParserContext *s);
2286 struct AVCodecParser *next;
2287} AVCodecParser;
2288
2289extern AVCodecParser *av_first_parser;
2290
2291void av_register_codec_parser(AVCodecParser *parser);
2292AVCodecParserContext *av_parser_init(int codec_id);
2293int av_parser_parse(AVCodecParserContext *s,
2294 AVCodecContext *avctx,
2295 uint8_t **poutbuf, int *poutbuf_size,
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2296 const uint8_t *buf, int buf_size,
2297 int64_t pts, int64_t dts);
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2298void av_parser_close(AVCodecParserContext *s);
2299
2300extern AVCodecParser mpegvideo_parser;
2301extern AVCodecParser mpeg4video_parser;
c6148de2 2302extern AVCodecParser h261_parser;
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2303extern AVCodecParser h263_parser;
2304extern AVCodecParser h264_parser;
8e6325b9 2305extern AVCodecParser mjpeg_parser;
99f06236 2306extern AVCodecParser pnm_parser;
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2307extern AVCodecParser mpegaudio_parser;
2308extern AVCodecParser ac3_parser;
2309
544eb99c 2310/* memory */
e4eadb4b 2311void *av_malloc(unsigned int size);
18f77016 2312void *av_mallocz(unsigned int size);
8e1e6f31 2313void *av_realloc(void *ptr, unsigned int size);
544eb99c 2314void av_free(void *ptr);
8e1e6f31 2315char *av_strdup(const char *s);
81c5f887 2316void av_freep(void *ptr);
97d96aaa 2317void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
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2318/* for static data only */
2319/* call av_free_static to release all staticaly allocated tables */
628d601b 2320void av_free_static(void);
8d1f2ba5 2321void *av_mallocz_static(unsigned int size);
073c2593 2322void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2323
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2324/* add by bero : in adx.c */
2325int is_adx(const unsigned char *buf,size_t bufsize);
2326
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RT
2327void img_copy(AVPicture *dst, const AVPicture *src,
2328 int pix_fmt, int width, int height);
2329
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2330/* av_log API */
2331
2332#include <stdarg.h>
2333
d8019eb5 2334#define AV_LOG_QUIET -1
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2335#define AV_LOG_ERROR 0
2336#define AV_LOG_INFO 1
2337#define AV_LOG_DEBUG 2
2338
f4bd8cf0 2339#ifdef __GNUC__
bc874dae 2340extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
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2341#else
2342extern void av_log(void*, int level, const char *fmt, ...);
2343#endif
2344
bc874dae 2345extern void av_vlog(void*, int level, const char *fmt, va_list);
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2346extern int av_log_get_level(void);
2347extern void av_log_set_level(int);
bc874dae 2348extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2349
3a278992 2350/* endian macros */
e96682e6 2351#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2352#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2353#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2354 (((uint8_t*)(x))[1] << 16) | \
2355 (((uint8_t*)(x))[2] << 8) | \
2356 ((uint8_t*)(x))[3])
2357#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2358#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2359 (((uint8_t*)(x))[2] << 16) | \
2360 (((uint8_t*)(x))[1] << 8) | \
2361 ((uint8_t*)(x))[0])
e96682e6 2362#endif
3a278992 2363
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MR
2364extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2365
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2366#ifdef __cplusplus
2367}
2368#endif
2369
a96b68b7 2370#endif /* AVCODEC_H */