Indeo 2 decoder by (Kostya <> kostya.shishkov gmail com)
[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"
589f8220 20#define LIBAVCODEC_BUILD 4752
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)
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30#define AV_TIME_BASE 1000000
31
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32enum CodecID {
33 CODEC_ID_NONE,
34 CODEC_ID_MPEG1VIDEO,
dcedf586 35 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 36 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 37 CODEC_ID_H261,
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38 CODEC_ID_H263,
39 CODEC_ID_RV10,
68b94c35 40 CODEC_ID_RV20,
de6d9b64 41 CODEC_ID_MJPEG,
b135d9fb 42 CODEC_ID_MJPEGB,
b1e6b355 43 CODEC_ID_LJPEG,
5e83dec4 44 CODEC_ID_SP5X,
bf89e6b1 45 CODEC_ID_MPEG4,
de6d9b64 46 CODEC_ID_RAWVIDEO,
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47 CODEC_ID_MSMPEG4V1,
48 CODEC_ID_MSMPEG4V2,
49 CODEC_ID_MSMPEG4V3,
e1a9dbff 50 CODEC_ID_WMV1,
b50eef3a 51 CODEC_ID_WMV2,
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52 CODEC_ID_H263P,
53 CODEC_ID_H263I,
d4f5d74a 54 CODEC_ID_FLV1,
be8ffec9 55 CODEC_ID_SVQ1,
8b82a956 56 CODEC_ID_SVQ3,
020fcc94 57 CODEC_ID_DVVIDEO,
11f18faf 58 CODEC_ID_HUFFYUV,
f70f7c6d 59 CODEC_ID_CYUV,
0da71265 60 CODEC_ID_H264,
deabd4fd 61 CODEC_ID_INDEO3,
d86053a4 62 CODEC_ID_VP3,
f44ee2c3 63 CODEC_ID_THEORA,
3d2e8cce 64 CODEC_ID_ASV1,
9b56edf5 65 CODEC_ID_ASV2,
5e20f836 66 CODEC_ID_FFV1,
e2a7bb28 67 CODEC_ID_4XM,
be3564ed 68 CODEC_ID_VCR1,
3aff069b 69 CODEC_ID_CLJR,
c3bf0288 70 CODEC_ID_MDEC,
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71 CODEC_ID_ROQ,
72 CODEC_ID_INTERPLAY_VIDEO,
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73 CODEC_ID_XAN_WC3,
74 CODEC_ID_XAN_WC4,
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75 CODEC_ID_RPZA,
76 CODEC_ID_CINEPAK,
77 CODEC_ID_WS_VQA,
78 CODEC_ID_MSRLE,
79 CODEC_ID_MSVIDEO1,
4120a53a 80 CODEC_ID_IDCIN,
1dc1ed99 81 CODEC_ID_8BPS,
11e29a41 82 CODEC_ID_SMC,
42cad81a 83 CODEC_ID_FLIC,
9a4117d5 84 CODEC_ID_TRUEMOTION1,
fafa0b75 85 CODEC_ID_VMDVIDEO,
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86 CODEC_ID_MSZH,
87 CODEC_ID_ZLIB,
070ed1bc 88 CODEC_ID_QTRLE,
791e7b83 89 CODEC_ID_SNOW,
9d53d58e 90 CODEC_ID_TSCC,
d0a0bbd2 91 CODEC_ID_ULTI,
d08d7142 92 CODEC_ID_QDRAW,
ab711b3c 93 CODEC_ID_VIXL,
acfd8f0f 94 CODEC_ID_QPEG,
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95 CODEC_ID_XVID,
96 CODEC_ID_PNG,
97 CODEC_ID_PPM,
98 CODEC_ID_PBM,
99 CODEC_ID_PGM,
100 CODEC_ID_PGMYUV,
101 CODEC_ID_PAM,
f37b9768 102 CODEC_ID_FFVHUFF,
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103 CODEC_ID_RV30,
104 CODEC_ID_RV40,
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105 CODEC_ID_VC9,
106 CODEC_ID_WMV3,
9c7fb608 107 CODEC_ID_LOCO,
a8a15e9d 108 CODEC_ID_WNV1,
589f8220 109 CODEC_ID_AASC,
856dbbff 110 CODEC_ID_INDEO2,
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111
112 /* various pcm "codecs" */
17179d2d 113 CODEC_ID_PCM_S16LE= 0x10000,
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114 CODEC_ID_PCM_S16BE,
115 CODEC_ID_PCM_U16LE,
116 CODEC_ID_PCM_U16BE,
117 CODEC_ID_PCM_S8,
118 CODEC_ID_PCM_U8,
119 CODEC_ID_PCM_MULAW,
120 CODEC_ID_PCM_ALAW,
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121
122 /* various adpcm codecs */
17179d2d 123 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 124 CODEC_ID_ADPCM_IMA_WAV,
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125 CODEC_ID_ADPCM_IMA_DK3,
126 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 127 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 128 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 129 CODEC_ID_ADPCM_MS,
e2a7bb28 130 CODEC_ID_ADPCM_4XM,
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131 CODEC_ID_ADPCM_XA,
132 CODEC_ID_ADPCM_ADX,
7d8379f2 133 CODEC_ID_ADPCM_EA,
e5966052 134 CODEC_ID_ADPCM_G726,
b3bfb299 135 CODEC_ID_ADPCM_CT,
659c3692 136 CODEC_ID_ADPCM_SWF,
891f64b3 137
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138 /* AMR */
139 CODEC_ID_AMR_NB= 0x12000,
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140 CODEC_ID_AMR_WB,
141
b8414bbd 142 /* RealAudio codecs*/
17179d2d 143 CODEC_ID_RA_144= 0x13000,
b8414bbd 144 CODEC_ID_RA_288,
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145
146 /* various DPCM codecs */
17179d2d 147 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 148 CODEC_ID_INTERPLAY_DPCM,
9937e686 149 CODEC_ID_XAN_DPCM,
d08d7142 150 CODEC_ID_SOL_DPCM,
985180a1 151
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152 CODEC_ID_MP2= 0x15000,
153 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
154 CODEC_ID_AAC,
155 CODEC_ID_MPEG4AAC,
156 CODEC_ID_AC3,
157 CODEC_ID_DTS,
158 CODEC_ID_VORBIS,
159 CODEC_ID_DVAUDIO,
160 CODEC_ID_WMAV1,
161 CODEC_ID_WMAV2,
162 CODEC_ID_MACE3,
163 CODEC_ID_MACE6,
164 CODEC_ID_VMDAUDIO,
165 CODEC_ID_SONIC,
166 CODEC_ID_SONIC_LS,
ac2570a8 167 CODEC_ID_FLAC,
1ede228a 168 CODEC_ID_MP3ADU,
d2a7718d 169 CODEC_ID_MP3ON4,
85ad5695 170 CODEC_ID_SHORTEN,
5df8a0c6 171 CODEC_ID_ALAC,
034eeaa1 172 CODEC_ID_WESTWOOD_SND1,
ac2570a8 173
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174 CODEC_ID_OGGTHEORA= 0x16000,
175
17179d2d 176 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 177 stream (only used by libavformat) */
de6d9b64 178};
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179
180/* CODEC_ID_MP3LAME is absolete */
181#define CODEC_ID_MP3LAME CODEC_ID_MP3
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182
183enum CodecType {
4a663d80 184 CODEC_TYPE_UNKNOWN = -1,
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185 CODEC_TYPE_VIDEO,
186 CODEC_TYPE_AUDIO,
985180a1 187 CODEC_TYPE_DATA,
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188};
189
64863965 190/**
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191 * Pixel format. Notes:
192 *
193 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
194 * color is put together as:
195 * (A << 24) | (R << 16) | (G << 8) | B
196 * This is stored as BGRA on little endian CPU architectures and ARGB on
197 * big endian CPUs.
198 *
199 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
200 * image data is stored in AVFrame.data[0]. The palette is transported in
201 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
202 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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203 * also endian-specific). Note also that the individual RGB palette
204 * components stored in AVFrame.data[1] should be in the range 0..255.
205 * This is important as many custom PAL8 video codecs that were designed
206 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 207 */
de6d9b64 208enum PixelFormat {
cd394651 209 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
ebb177dd 210 PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
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211 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
212 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
213 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
214 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 215 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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216 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
217 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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218 PIX_FMT_RGB565, ///< always stored in cpu endianness
219 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 220 PIX_FMT_GRAY8,
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221 PIX_FMT_MONOWHITE, ///< 0 is white
222 PIX_FMT_MONOBLACK, ///< 0 is black
223 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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224 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
225 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
226 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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227 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
228 PIX_FMT_XVMC_MPEG2_IDCT,
ebb177dd 229 PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1
f02be79d 230 PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
dab64ebc 231 PIX_FMT_NB,
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232};
233
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234/* currently unused, may be used if 24/32 bits samples ever supported */
235enum SampleFormat {
64863965 236 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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237 SAMPLE_FMT_S32, ///< signed 32 bits
238 SAMPLE_FMT_FLT, ///< float
239 SAMPLE_FMT_DBL, ///< double
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240};
241
de6d9b64 242/* in bytes */
bc8d1857 243#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 244
d7425f59 245/**
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246 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
247 * this is mainly needed because some optimized bitstream readers read
248 * 32 or 64 bit at once and could read over the end<br>
249 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
250 * MPEG bitstreams could cause overread and segfault
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251 */
252#define FF_INPUT_BUFFER_PADDING_SIZE 8
253
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254/**
255 * minimum encoding buffer size.
256 * used to avoid some checks during header writing
257 */
258#define FF_MIN_BUFFER_SIZE 16384
259
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260/* motion estimation type, EPZS by default */
261enum Motion_Est_ID {
101bea5f 262 ME_ZERO = 1,
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263 ME_FULL,
264 ME_LOG,
265 ME_PHODS,
266 ME_EPZS,
267 ME_X1
268};
269
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270enum AVRounding {
271 AV_ROUND_ZERO = 0, ///< round toward zero
272 AV_ROUND_INF = 1, ///< round away from zero
273 AV_ROUND_DOWN = 2, ///< round toward -infinity
274 AV_ROUND_UP = 3, ///< round toward +infinity
275 AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
276};
277
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278typedef struct RcOverride{
279 int start_frame;
280 int end_frame;
281 int qscale; // if this is 0 then quality_factor will be used instead
282 float quality_factor;
283} RcOverride;
284
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285/* only for ME compatiblity with old apps */
286extern int motion_estimation_method;
287
4e00e76b 288#define FF_MAX_B_FRAMES 8
9dbcbd92 289
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290/* encoding support
291 these flags can be passed in AVCodecContext.flags before initing
292 Note: note not everything is supported yet
293*/
de6d9b64 294
64863965 295#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 296#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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297#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
298#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 299#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 300#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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301/* parent program gurantees that the input for b-frame containing streams is not written to
302 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 303#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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304#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
305#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
306#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
307#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
308#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
309#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
310#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 311 of only at frame boundaries */
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312#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
313#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 314#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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315#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
316#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
317#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
318#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 319/* Fx : Flag for h263+ extra options */
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320#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
321#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 322#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 323#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 324#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 325#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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326#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
327#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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328#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
329#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 330#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 331#define CODEC_FLAG_CLOSED_GOP 0x80000000
6fc5b059 332#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 333#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 334#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
6fc5b059 335
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336/* Unsupported options :
337 * Syntax Arithmetic coding (SAC)
21e59552 338 * Reference Picture Selection
ba58dabc 339 * Independant Segment Decoding */
21e59552 340/* /Fx */
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341/* codec capabilities */
342
64863965 343#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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344/**
345 * Codec uses get_buffer() for allocating buffers.
346 * direct rendering method 1
347 */
348#define CODEC_CAP_DR1 0x0002
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349/* if 'parse_only' field is true, then avcodec_parse_frame() can be
350 used */
351#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 352#define CODEC_CAP_TRUNCATED 0x0008
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353/* codec can export data for HW decoding (XvMC) */
354#define CODEC_CAP_HWACCEL 0x0010
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355/**
356 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
357 * if this is not set, the codec is guranteed to never be feeded with NULL data
358 */
6f824977 359#define CODEC_CAP_DELAY 0x0020
bf89e6b1 360
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361//the following defines might change, so dont expect compatibility if u use them
362#define MB_TYPE_INTRA4x4 0x0001
363#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
364#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
365#define MB_TYPE_16x16 0x0008
366#define MB_TYPE_16x8 0x0010
367#define MB_TYPE_8x16 0x0020
368#define MB_TYPE_8x8 0x0040
369#define MB_TYPE_INTERLACED 0x0080
370#define MB_TYPE_DIRECT2 0x0100 //FIXME
371#define MB_TYPE_ACPRED 0x0200
372#define MB_TYPE_GMC 0x0400
373#define MB_TYPE_SKIP 0x0800
374#define MB_TYPE_P0L0 0x1000
375#define MB_TYPE_P1L0 0x2000
376#define MB_TYPE_P0L1 0x4000
377#define MB_TYPE_P1L1 0x8000
378#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
379#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
380#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
381#define MB_TYPE_QUANT 0x00010000
382#define MB_TYPE_CBP 0x00020000
383//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
384
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385/**
386 * Pan Scan area.
387 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
388 */
389typedef struct AVPanScan{
390 /**
391 * id.
392 * - encoding: set by user.
393 * - decoding: set by lavc
394 */
395 int id;
396
397 /**
398 * width and height in 1/16 pel
399 * - encoding: set by user.
400 * - decoding: set by lavc
401 */
402 int width;
403 int height;
404
405 /**
406 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
407 * - encoding: set by user.
408 * - decoding: set by lavc
409 */
410 int16_t position[3][2];
411}AVPanScan;
412
492cd3a9 413#define FF_COMMON_FRAME \
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414 /**\
415 * pointer to the picture planes.\
416 * this might be different from the first allocated byte\
417 * - encoding: \
418 * - decoding: \
419 */\
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420 uint8_t *data[4];\
421 int linesize[4];\
422 /**\
32db2b1d 423 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 424 * this isnt used by lavc unless the default get/release_buffer() is used\
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425 * - encoding: \
426 * - decoding: \
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427 */\
428 uint8_t *base[4];\
429 /**\
430 * 1 -> keyframe, 0-> not\
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431 * - encoding: set by lavc\
432 * - decoding: set by lavc\
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433 */\
434 int key_frame;\
435\
436 /**\
0da71265 437 * picture type of the frame, see ?_TYPE below.\
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438 * - encoding: set by lavc for coded_picture (and set by user for input)\
439 * - decoding: set by lavc\
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440 */\
441 int pict_type;\
442\
443 /**\
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444 * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
445 * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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446 * - encoding: MUST be set by user\
447 * - decoding: set by lavc\
1e491e29 448 */\
be6784dc 449 int64_t pts;\
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450\
451 /**\
452 * picture number in bitstream order.\
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453 * - encoding: set by\
454 * - decoding: set by lavc\
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455 */\
456 int coded_picture_number;\
457 /**\
1e491e29 458 * picture number in display order.\
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459 * - encoding: set by\
460 * - decoding: set by lavc\
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461 */\
462 int display_picture_number;\
463\
464 /**\
158c7f05 465 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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466 * - encoding: set by lavc for coded_picture (and set by user for input)\
467 * - decoding: set by lavc\
1e491e29 468 */\
158c7f05 469 int quality; \
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470\
471 /**\
472 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 473 * set to INT_MAX if the buffer has not been used yet \
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474 * - encoding: unused\
475 * - decoding: MUST be set by get_buffer()\
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476 */\
477 int age;\
478\
479 /**\
480 * is this picture used as reference\
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481 * - encoding: unused\
482 * - decoding: set by lavc (before get_buffer() call))\
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483 */\
484 int reference;\
485\
486 /**\
487 * QP table\
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488 * - encoding: unused\
489 * - decoding: set by lavc\
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490 */\
491 int8_t *qscale_table;\
492 /**\
493 * QP store stride\
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494 * - encoding: unused\
495 * - decoding: set by lavc\
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496 */\
497 int qstride;\
498\
499 /**\
500 * mbskip_table[mb]>=1 if MB didnt change\
501 * stride= mb_width = (width+15)>>4\
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502 * - encoding: unused\
503 * - decoding: set by lavc\
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504 */\
505 uint8_t *mbskip_table;\
506\
507 /**\
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508 * Motion vector table.\
509 * @code\
510 * example:\
511 * int mv_sample_log2= 4 - motion_subsample_log2;\
512 * int mb_width= (width+15)>>4;\
513 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
514 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
515 * @endcode\
a4d36c11 516 * - encoding: set by user\
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517 * - decoding: set by lavc\
518 */\
519 int16_t (*motion_val[2])[2];\
520\
521 /**\
522 * Macroblock type table\
523 * mb_type_base + mb_width + 2\
a4d36c11 524 * - encoding: set by user\
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525 * - decoding: set by lavc\
526 */\
527 uint32_t *mb_type;\
528\
529 /**\
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530 * log2 of the size of the block which a single vector in motion_val represents: \
531 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
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532 * - encoding: unused\
533 * - decoding: set by lavc\
534 */\
535 uint8_t motion_subsample_log2;\
536\
537 /**\
1e491e29 538 * for some private data of the user\
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539 * - encoding: unused\
540 * - decoding: set by user\
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541 */\
542 void *opaque;\
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543\
544 /**\
545 * error\
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546 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
547 * - decoding: unused\
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548 */\
549 uint64_t error[4];\
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550\
551 /**\
552 * type of the buffer (to keep track of who has to dealloc data[*])\
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553 * - encoding: set by the one who allocs it\
554 * - decoding: set by the one who allocs it\
3db320ea 555 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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556 */\
557 int type;\
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558 \
559 /**\
560 * when decoding, this signal how much the picture must be delayed.\
561 * extra_delay = repeat_pict / (2*fps)\
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562 * - encoding: unused\
563 * - decoding: set by lavc\
2ec23b6d 564 */\
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565 int repeat_pict;\
566 \
567 /**\
568 * \
569 */\
570 int qscale_type;\
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571 \
572 /**\
573 * The content of the picture is interlaced.\
574 * - encoding: set by user\
575 * - decoding: set by lavc (default 0)\
576 */\
577 int interlaced_frame;\
578 \
579 /**\
9dad924e 580 * if the content is interlaced, is top field displayed first.\
2744ca9a 581 * - encoding: set by user\
9dad924e 582 * - decoding: set by lavc\
2744ca9a 583 */\
9dad924e 584 int top_field_first;\
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585 \
586 /**\
587 * Pan scan.\
588 * - encoding: set by user\
589 * - decoding: set by lavc\
590 */\
591 AVPanScan *pan_scan;\
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592 \
593 /**\
594 * tell user application that palette has changed from previous frame.\
595 * - encoding: ??? (no palette-enabled encoder yet)\
596 * - decoding: set by lavc (default 0)\
597 */\
598 int palette_has_changed;\
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599 \
600 /**\
601 * Codec suggestion on buffer type if != 0\
602 * - encoding: unused\
603 * - decoding: set by lavc (before get_buffer() call))\
604 */\
605 int buffer_hints;\
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606\
607 /**\
608 * DCT coeffitients\
609 * - encoding: unused\
610 * - decoding: set by lavc\
611 */\
612 short *dct_coeff;\
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613\
614 /**\
615 * Motion referece frame index\
616 * - encoding: set by user\
617 * - decoding: set by lavc\
618 */\
619 int8_t *ref_index[2];
2ec23b6d 620
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621#define FF_QSCALE_TYPE_MPEG1 0
622#define FF_QSCALE_TYPE_MPEG2 1
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623
624#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 625#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 626#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 627#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 628
1e491e29 629
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630#define FF_I_TYPE 1 // Intra
631#define FF_P_TYPE 2 // Predicted
632#define FF_B_TYPE 3 // Bi-dir predicted
633#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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634#define FF_SI_TYPE 5
635#define FF_SP_TYPE 6
1e491e29 636
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637#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
638#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
639#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
640#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
641
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MN
642/**
643 * Audio Video Frame.
644 */
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645typedef struct AVFrame {
646 FF_COMMON_FRAME
647} AVFrame;
1e491e29 648
14bea432 649#define DEFAULT_FRAME_RATE_BASE 1001000
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650
651/**
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652 * Used by av_log
653 */
654typedef struct AVCLASS AVClass;
655struct AVCLASS {
656 const char* class_name;
657 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
658 or AVFormatContext, which begin with an AVClass.
659 Needed because av_log is in libavcodec and has no visibility
660 of AVIn/OutputFormat */
661};
662
663/**
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664 * main external api structure.
665 */
de6d9b64 666typedef struct AVCodecContext {
b71901e6 667 /**
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668 * Info on struct for av_log
669 * - set by avcodec_alloc_context
670 */
43465395 671 AVClass *av_class;
bc874dae 672 /**
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673 * the average bitrate.
674 * - encoding: set by user. unused for constant quantizer encoding
675 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 676 */
de6d9b64 677 int bit_rate;
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678
679 /**
64863965 680 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 681 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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682 * - encoding: set by user. unused for constant quantizer encoding
683 * - decoding: unused
b71901e6
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684 */
685 int bit_rate_tolerance;
686
687 /**
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MN
688 * CODEC_FLAG_*.
689 * - encoding: set by user.
690 * - decoding: set by user.
b71901e6 691 */
de6d9b64 692 int flags;
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693
694 /**
695 * some codecs needs additionnal format info. It is stored here
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696 * - encoding: set by user.
697 * - decoding: set by lavc. (FIXME is this ok?)
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698 */
699 int sub_id;
700
701 /**
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702 * motion estimation algorithm used for video coding.
703 * - encoding: MUST be set by user.
704 * - decoding: unused
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705 */
706 int me_method;
707
708 /**
64863965 709 * some codecs need / can use extra-data like huffman tables.
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710 * mjpeg: huffman tables
711 * rv10: additional flags
b704e742 712 * mpeg4: global headers (they can be in the bitstream or here)
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713 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
714 * then extradata_size to avoid prolems if its read with the bitstream reader
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715 * - encoding: set/allocated/freed by lavc.
716 * - decoding: set/allocated/freed by user.
b71901e6 717 */
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718 void *extradata;
719 int extradata_size;
720
de6d9b64 721 /* video only */
b71901e6 722 /**
14bea432 723 * frames per sec multiplied by frame_rate_base.
b71901e6 724 * for variable fps this is the precission, so if the timestamps
14bea432 725 * can be specified in msec precssion then this is 1000*frame_rate_base
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MN
726 * - encoding: MUST be set by user
727 * - decoding: set by lavc. 0 or the frame_rate if available
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728 */
729 int frame_rate;
14bea432
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730
731 /**
21adafec 732 * picture width / height.
64863965 733 * - encoding: MUST be set by user.
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734 * - decoding: set by lavc.
735 * Note, for compatibility its possible to set this instead of
736 * coded_width/height before decoding
b71901e6 737 */
de6d9b64 738 int width, height;
b71901e6 739
e769f053 740#define FF_ASPECT_EXTENDED 15
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MN
741
742 /**
64863965
MN
743 * the number of pictures in a group of pitures, or 0 for intra_only.
744 * - encoding: set by user.
745 * - decoding: unused
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746 */
747 int gop_size;
748
749 /**
64863965 750 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 751 * - encoding: set by user.
64863965 752 * - decoding: set by lavc.
b71901e6 753 */
e4eadb4b 754 enum PixelFormat pix_fmt;
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MK
755
756 /**
757 * Frame rate emulation. If not zero lower layer (i.e. format handler)
758 * has to read frames at native frame rate.
759 * - encoding: set by user.
760 * - decoding: unused.
761 */
762 int rate_emu;
763
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764 /**
765 * if non NULL, 'draw_horiz_band' is called by the libavcodec
766 * decoder to draw an horizontal band. It improve cache usage. Not
767 * all codecs can do that. You must check the codec capabilities
768 * before
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769 * - encoding: unused
770 * - decoding: set by user.
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771 * @param height the height of the slice
772 * @param y the y position of the slice
773 * @param type 1->top field, 2->bottom field, 3->frame
774 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 775 */
bf89e6b1 776 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 777 const AVFrame *src, int offset[4],
3bb07d61 778 int y, int type, int height);
bf89e6b1 779
de6d9b64 780 /* audio only */
64863965 781 int sample_rate; ///< samples per sec
de6d9b64 782 int channels;
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783
784 /**
785 * audio sample format.
786 * - encoding: set by user.
787 * - decoding: set by lavc.
788 */
789 enum SampleFormat sample_fmt; ///< sample format, currenly unused
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790
791 /* the following data should not be initialized */
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792 int frame_size; ///< in samples, initialized when calling 'init'
793 int frame_number; ///< audio or video frame number
794 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 795
b71901e6 796 /**
b71901e6 797 * number of frames the decoded output will be delayed relative to
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798 * the encoded input.
799 * - encoding: set by lavc.
800 * - decoding: unused
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MN
801 */
802 int delay;
1ff662cc 803
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804 /* - encoding parameters */
805 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
806 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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807
808 /**
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809 * minimum quantizer.
810 * - encoding: set by user.
811 * - decoding: unused
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812 */
813 int qmin;
814
815 /**
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816 * maximum quantizer.
817 * - encoding: set by user.
818 * - decoding: unused
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819 */
820 int qmax;
821
822 /**
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823 * maximum quantizer difference etween frames.
824 * - encoding: set by user.
825 * - decoding: unused
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826 */
827 int max_qdiff;
828
829 /**
64863965 830 * maximum number of b frames between non b frames.
b71901e6 831 * note: the output will be delayed by max_b_frames+1 relative to the input
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832 * - encoding: set by user.
833 * - decoding: unused
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834 */
835 int max_b_frames;
836
837 /**
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838 * qscale factor between ip and b frames.
839 * - encoding: set by user.
840 * - decoding: unused
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841 */
842 float b_quant_factor;
843
844 /** obsolete FIXME remove */
845 int rc_strategy;
8b4c7dbc 846 int b_frame_strategy;
9dbcbd92 847
b71901e6 848 /**
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849 * hurry up amount.
850 * - encoding: unused
851 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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852 */
853 int hurry_up;
2417652e 854
de6d9b64 855 struct AVCodec *codec;
b71901e6 856
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FB
857 void *priv_data;
858
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MN
859 /* unused, FIXME remove*/
860 int rtp_mode;
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J
861
862 int rtp_payload_size; /* The size of the RTP payload, the coder will */
863 /* do it's best to deliver a chunk with size */
864 /* below rtp_payload_size, the chunk will start */
865 /* with a start code on some codecs like H.263 */
866 /* This doesn't take account of any particular */
867 /* headers inside the transmited RTP payload */
81401c1f
J
868
869
870 /* The RTP callcack: This function is called */
871 /* every time the encoder as a packet to send */
872 /* Depends on the encoder if the data starts */
ebaa7e03
JB
873 /* with a Start Code (it should) H.263 does. */
874 /* mb_nb contains the number of macroblocks */
875 /* encoded in the RTP payload */
876 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 877
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878 /* statistics, used for 2-pass encoding */
879 int mv_bits;
880 int header_bits;
881 int i_tex_bits;
882 int p_tex_bits;
883 int i_count;
884 int p_count;
885 int skip_count;
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886 int misc_bits;
887
888 /**
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MN
889 * number of bits used for the previously encoded frame.
890 * - encoding: set by lavc
7004ffb3 891 * - decoding: unused
b71901e6 892 */
098eefe1 893 int frame_bits;
7004ffb3 894
b71901e6 895 /**
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896 * private data of the user, can be used to carry app specific stuff.
897 * - encoding: set by user
898 * - decoding: set by user
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899 */
900 void *opaque;
901
de6d9b64 902 char codec_name[32];
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PG
903 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
904 enum CodecID codec_id; /* see CODEC_ID_xxx */
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MN
905
906 /**
907 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
908 * this is used to workaround some encoder bugs
bd5a6020 909 * - encoding: set by user, if not then the default based on codec_id will be used
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910 * - decoding: set by user, will be converted to upper case by lavc during init
911 */
912 unsigned int codec_tag;
92ba5ffb 913
b71901e6 914 /**
64863965 915 * workaround bugs in encoders which sometimes cannot be detected automatically.
59fa3f96 916 * - encoding: set by user
64863965 917 * - decoding: set by user
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918 */
919 int workaround_bugs;
64863965 920#define FF_BUG_AUTODETECT 1 ///< autodetection
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921#define FF_BUG_OLD_MSMPEG4 2
922#define FF_BUG_XVID_ILACE 4
923#define FF_BUG_UMP4 8
924#define FF_BUG_NO_PADDING 16
3116cb14 925#define FF_BUG_AMV 32
ac0c6638 926#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 927#define FF_BUG_QPEL_CHROMA 64
db794953 928#define FF_BUG_STD_QPEL 128
36df8805 929#define FF_BUG_QPEL_CHROMA2 256
c40c3482 930#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 931#define FF_BUG_EDGE 1024
b44bdf7e 932#define FF_BUG_HPEL_CHROMA 2048
4ccde216 933#define FF_BUG_DC_CLIP 4096
59fa3f96 934#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
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935//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
936
b71901e6 937 /**
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938 * luma single coeff elimination threshold.
939 * - encoding: set by user
940 * - decoding: unused
b71901e6 941 */
1f6b6e50 942 int luma_elim_threshold;
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943
944 /**
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945 * chroma single coeff elimination threshold.
946 * - encoding: set by user
947 * - decoding: unused
b71901e6 948 */
1f6b6e50 949 int chroma_elim_threshold;
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950
951 /**
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952 * strictly follow the std (MPEG4, ...).
953 * - encoding: set by user
954 * - decoding: unused
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955 */
956 int strict_std_compliance;
957
958 /**
64863965 959 * qscale offset between ip and b frames.
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960 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
961 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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962 * - encoding: set by user.
963 * - decoding: unused
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964 */
965 float b_quant_offset;
966
967 /**
ce3bcaed 968 * error resilience higher values will detect more errors but may missdetect
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969 * some more or less valid parts as errors.
970 * - encoding: unused
971 * - decoding: set by user
b71901e6 972 */
1f6b6e50 973 int error_resilience;
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974#define FF_ER_CAREFULL 1
975#define FF_ER_COMPLIANT 2
976#define FF_ER_AGGRESSIVE 3
977#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 978
6b72ac63 979 /**
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980 * called at the beginning of each frame to get a buffer for it.
981 * if pic.reference is set then the frame will be read later by lavc
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982 * avcodec_align_dimensions() should be used to find the required width and
983 * height, as they normally need to be rounded up to the next multiple of 16
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984 * - encoding: unused
985 * - decoding: set by lavc, user can override
b71901e6 986 */
492cd3a9 987 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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988
989 /**
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990 * called to release buffers which where allocated with get_buffer.
991 * a released buffer can be reused in get_buffer()
992 * pic.data[*] must be set to NULL
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993 * - encoding: unused
994 * - decoding: set by lavc, user can override
b71901e6 995 */
492cd3a9 996 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 997
b71901e6 998 /**
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999 * if 1 the stream has a 1 frame delay during decoding.
1000 * - encoding: set by lavc
64863965 1001 * - decoding: set by lavc
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1002 */
1003 int has_b_frames;
b71901e6 1004
64863965 1005 int block_align; ///< used by some WAV based audio codecs
ce980a95 1006
64863965 1007 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1008 (function avcodec_parse_frame()). The frame
1009 data is returned. Only MPEG codecs support this now. */
ce980a95 1010
b71901e6 1011 /**
e4eadb4b 1012 * 0-> h263 quant 1-> mpeg quant.
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1013 * - encoding: set by user.
1014 * - decoding: unused
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1015 */
1016 int mpeg_quant;
ce980a95 1017
b71901e6 1018 /**
64863965
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1019 * pass1 encoding statistics output buffer.
1020 * - encoding: set by lavc
1021 * - decoding: unused
b71901e6 1022 */
64863965 1023 char *stats_out;
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1024
1025 /**
1026 * pass2 encoding statistics input buffer.
1027 * concatenated stuff from stats_out of pass1 should be placed here
64863965
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1028 * - encoding: allocated/set/freed by user
1029 * - decoding: unused
b71901e6
MN
1030 */
1031 char *stats_in;
1032
1033 /**
64863965 1034 * ratecontrol qmin qmax limiting method.
b71901e6 1035 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
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1036 * - encoding: set by user.
1037 * - decoding: unused
b71901e6 1038 */
ce980a95 1039 float rc_qsquish;
b71901e6 1040
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MN
1041 float rc_qmod_amp;
1042 int rc_qmod_freq;
b71901e6
MN
1043
1044 /**
64863965
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1045 * ratecontrol override, see RcOverride.
1046 * - encoding: allocated/set/freed by user.
1047 * - decoding: unused
b71901e6 1048 */
ce980a95
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1049 RcOverride *rc_override;
1050 int rc_override_count;
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MN
1051
1052 /**
64863965
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1053 * rate control equation.
1054 * - encoding: set by user
1055 * - decoding: unused
b71901e6 1056 */
ce980a95 1057 char *rc_eq;
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MN
1058
1059 /**
64863965
MN
1060 * maximum bitrate.
1061 * - encoding: set by user.
1062 * - decoding: unused
b71901e6 1063 */
ce980a95 1064 int rc_max_rate;
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MN
1065
1066 /**
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MN
1067 * minimum bitrate.
1068 * - encoding: set by user.
1069 * - decoding: unused
b71901e6 1070 */
ce980a95 1071 int rc_min_rate;
b71901e6
MN
1072
1073 /**
64863965
MN
1074 * decoder bitstream buffer size.
1075 * - encoding: set by user.
1076 * - decoding: unused
b71901e6 1077 */
ce980a95
MN
1078 int rc_buffer_size;
1079 float rc_buffer_aggressivity;
b71901e6
MN
1080
1081 /**
64863965 1082 * qscale factor between p and i frames.
a1e257b2
MN
1083 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1084 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1085 * - encoding: set by user.
1086 * - decoding: unused
b71901e6
MN
1087 */
1088 float i_quant_factor;
1089
1090 /**
64863965 1091 * qscale offset between p and i frames.
64863965
MN
1092 * - encoding: set by user.
1093 * - decoding: unused
b71901e6
MN
1094 */
1095 float i_quant_offset;
1096
1097 /**
64863965
MN
1098 * initial complexity for pass1 ratecontrol.
1099 * - encoding: set by user.
1100 * - decoding: unused
b71901e6 1101 */
ce980a95 1102 float rc_initial_cplx;
917e06c8 1103
b71901e6 1104 /**
64863965
MN
1105 * dct algorithm, see FF_DCT_* below.
1106 * - encoding: set by user
1107 * - decoding: unused
b71901e6 1108 */
28db7fce 1109 int dct_algo;
c7e07931 1110#define FF_DCT_AUTO 0
28db7fce 1111#define FF_DCT_FASTINT 1
c7e07931
MO
1112#define FF_DCT_INT 2
1113#define FF_DCT_MMX 3
1114#define FF_DCT_MLIB 4
05c4072b 1115#define FF_DCT_ALTIVEC 5
65e4c8c9 1116#define FF_DCT_FAAN 6
c5d309f2
MN
1117
1118 /**
64863965
MN
1119 * luminance masking (0-> disabled).
1120 * - encoding: set by user
1121 * - decoding: unused
c5d309f2
MN
1122 */
1123 float lumi_masking;
1124
1125 /**
64863965
MN
1126 * temporary complexity masking (0-> disabled).
1127 * - encoding: set by user
1128 * - decoding: unused
c5d309f2
MN
1129 */
1130 float temporal_cplx_masking;
1131
1132 /**
64863965
MN
1133 * spatial complexity masking (0-> disabled).
1134 * - encoding: set by user
1135 * - decoding: unused
c5d309f2
MN
1136 */
1137 float spatial_cplx_masking;
1138
1139 /**
64863965
MN
1140 * p block masking (0-> disabled).
1141 * - encoding: set by user
1142 * - decoding: unused
c5d309f2
MN
1143 */
1144 float p_masking;
15415af4 1145
5e746b99 1146 /**
64863965
MN
1147 * darkness masking (0-> disabled).
1148 * - encoding: set by user
1149 * - decoding: unused
5e746b99
MN
1150 */
1151 float dark_masking;
0c2dd16e 1152
3a694b04
NK
1153
1154 /* for binary compatibility */
1155 int unused;
1156
0c2dd16e 1157 /**
64863965
MN
1158 * idct algorithm, see FF_IDCT_* below.
1159 * - encoding: set by user
1160 * - decoding: set by user
2ad1516a
MN
1161 */
1162 int idct_algo;
1163#define FF_IDCT_AUTO 0
1164#define FF_IDCT_INT 1
1165#define FF_IDCT_SIMPLE 2
1166#define FF_IDCT_SIMPLEMMX 3
1167#define FF_IDCT_LIBMPEG2MMX 4
1168#define FF_IDCT_PS2 5
1169#define FF_IDCT_MLIB 6
1170#define FF_IDCT_ARM 7
05c4072b 1171#define FF_IDCT_ALTIVEC 8
b82cdc72 1172#define FF_IDCT_SH4 9
bd7d1ea7 1173#define FF_IDCT_SIMPLEARM 10
0fa8158d 1174#define FF_IDCT_H264 11
2ad1516a 1175
144f0625 1176 /**
64863965
MN
1177 * slice count.
1178 * - encoding: set by lavc
1179 * - decoding: set by user (or 0)
144f0625
MN
1180 */
1181 int slice_count;
1182 /**
64863965
MN
1183 * slice offsets in the frame in bytes.
1184 * - encoding: set/allocated by lavc
1185 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1186 */
1187 int *slice_offset;
1188
4d2858de 1189 /**
64863965
MN
1190 * error concealment flags.
1191 * - encoding: unused
1192 * - decoding: set by user
4d2858de
MN
1193 */
1194 int error_concealment;
1195#define FF_EC_GUESS_MVS 1
1196#define FF_EC_DEBLOCK 2
1197
6b72ac63 1198 /**
bec89a84 1199 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1200 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1201 *
1202 * with FORCE flag you may instead enable given CPU features
1203 * (Dangerous: usable in case of misdetection, improper usage however will
1204 * result into program crash)
1205 */
1206 unsigned dsp_mask;
1207#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1208 /* lower 16 bits - CPU features */
1209#ifdef HAVE_MMX
1210#define FF_MM_MMX 0x0001 /* standard MMX */
1211#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1212#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1213#define FF_MM_SSE 0x0008 /* SSE functions */
1214#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
e42a152b 1215#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1216#endif /* HAVE_MMX */
11f18faf
MN
1217
1218 /**
64863965
MN
1219 * bits per sample/pixel from the demuxer (needed for huffyuv).
1220 * - encoding: set by lavc
1221 * - decoding: set by user
11f18faf
MN
1222 */
1223 int bits_per_sample;
1224
1225 /**
64863965
MN
1226 * prediction method (needed for huffyuv).
1227 * - encoding: set by user
1228 * - decoding: unused
11f18faf
MN
1229 */
1230 int prediction_method;
1231#define FF_PRED_LEFT 0
1232#define FF_PRED_PLANE 1
1233#define FF_PRED_MEDIAN 2
5d3cea3a
MN
1234
1235 /**
5ff85f1d 1236 * sample aspect ratio (0 if unknown).
1f26c6f3 1237 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
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1238 * - encoding: set by user.
1239 * - decoding: set by lavc.
5d3cea3a 1240 */
5ff85f1d 1241 AVRational sample_aspect_ratio;
1e491e29
MN
1242
1243 /**
64863965
MN
1244 * the picture in the bitstream.
1245 * - encoding: set by lavc
1246 * - decoding: set by lavc
1e491e29 1247 */
492cd3a9 1248 AVFrame *coded_frame;
c8c437bc
MN
1249
1250 /**
64863965
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1251 * debug.
1252 * - encoding: set by user.
1253 * - decoding: set by user.
c8c437bc
MN
1254 */
1255 int debug;
1256#define FF_DEBUG_PICT_INFO 1
1257#define FF_DEBUG_RC 2
1258#define FF_DEBUG_BITSTREAM 4
1259#define FF_DEBUG_MB_TYPE 8
1260#define FF_DEBUG_QP 16
1261#define FF_DEBUG_MV 32
8289c6fa 1262#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1263#define FF_DEBUG_SKIP 0x00000080
1264#define FF_DEBUG_STARTCODE 0x00000100
1265#define FF_DEBUG_PTS 0x00000200
46b4feec 1266#define FF_DEBUG_ER 0x00000400
0da71265 1267#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1268#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1269#define FF_DEBUG_VIS_QP 0x00002000
1270#define FF_DEBUG_VIS_MB_TYPE 0x00004000
140cb663
MN
1271
1272 /**
0c9bbaec
WH
1273 * debug.
1274 * - encoding: set by user.
1275 * - decoding: set by user.
1276 */
1277 int debug_mv;
1278#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1279#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1280#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1281
1282 /**
64863965
MN
1283 * error.
1284 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1285 * - decoding: unused
140cb663
MN
1286 */
1287 uint64_t error[4];
17a70fde
MN
1288
1289 /**
64863965 1290 * minimum MB quantizer.
6e0d8c06 1291 * - encoding: unused
64863965 1292 * - decoding: unused
17a70fde
MN
1293 */
1294 int mb_qmin;
1295
1296 /**
64863965 1297 * maximum MB quantizer.
6e0d8c06 1298 * - encoding: unused
64863965 1299 * - decoding: unused
17a70fde
MN
1300 */
1301 int mb_qmax;
1457ab52
MN
1302
1303 /**
64863965
MN
1304 * motion estimation compare function.
1305 * - encoding: set by user.
1306 * - decoding: unused
1457ab52
MN
1307 */
1308 int me_cmp;
1309 /**
64863965
MN
1310 * subpixel motion estimation compare function.
1311 * - encoding: set by user.
1312 * - decoding: unused
1457ab52
MN
1313 */
1314 int me_sub_cmp;
1315 /**
64863965
MN
1316 * macroblock compare function (not supported yet).
1317 * - encoding: set by user.
1318 * - decoding: unused
1457ab52
MN
1319 */
1320 int mb_cmp;
622348f9
MN
1321 /**
1322 * interlaced dct compare function
1323 * - encoding: set by user.
1324 * - decoding: unused
1325 */
1326 int ildct_cmp;
1457ab52
MN
1327#define FF_CMP_SAD 0
1328#define FF_CMP_SSE 1
1329#define FF_CMP_SATD 2
1330#define FF_CMP_DCT 3
1331#define FF_CMP_PSNR 4
1332#define FF_CMP_BIT 5
1333#define FF_CMP_RD 6
1334#define FF_CMP_ZERO 7
622348f9
MN
1335#define FF_CMP_VSAD 8
1336#define FF_CMP_VSSE 9
e6a2ac34 1337#define FF_CMP_NSSE 10
26efc54e
MN
1338#define FF_CMP_W53 11
1339#define FF_CMP_W97 12
0fd6aea1 1340#define FF_CMP_DCTMAX 13
1457ab52
MN
1341#define FF_CMP_CHROMA 256
1342
1343 /**
64863965
MN
1344 * ME diamond size & shape.
1345 * - encoding: set by user.
1346 * - decoding: unused
1457ab52
MN
1347 */
1348 int dia_size;
b07a5980
MN
1349
1350 /**
64863965
MN
1351 * amount of previous MV predictors (2a+1 x 2a+1 square).
1352 * - encoding: set by user.
1353 * - decoding: unused
b07a5980
MN
1354 */
1355 int last_predictor_count;
70ac76c0 1356
f5fb6b34 1357 /**
64863965
MN
1358 * pre pass for motion estimation.
1359 * - encoding: set by user.
1360 * - decoding: unused
f5fb6b34
MN
1361 */
1362 int pre_me;
b07a5980 1363
70ac76c0 1364 /**
64863965
MN
1365 * motion estimation pre pass compare function.
1366 * - encoding: set by user.
1367 * - decoding: unused
70ac76c0
MN
1368 */
1369 int me_pre_cmp;
826f429a 1370
70ac76c0 1371 /**
64863965
MN
1372 * ME pre pass diamond size & shape.
1373 * - encoding: set by user.
1374 * - decoding: unused
70ac76c0
MN
1375 */
1376 int pre_dia_size;
1377
826f429a 1378 /**
64863965
MN
1379 * subpel ME quality.
1380 * - encoding: set by user.
1381 * - decoding: unused
826f429a
MN
1382 */
1383 int me_subpel_quality;
1384
a33c7159 1385 /**
64863965 1386 * callback to negotiate the pixelFormat.
a33c7159
MN
1387 * @param fmt is the list of formats which are supported by the codec,
1388 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1389 * the first is allways the native one
1390 * @return the choosen format
64863965
MN
1391 * - encoding: unused
1392 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1393 */
494c56d3 1394 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1395
1396 /**
1397 * DTG active format information (additionnal aspect ratio
1398 * information only used in DVB MPEG2 transport streams). 0 if
1399 * not set.
1400 *
64863965
MN
1401 * - encoding: unused.
1402 * - decoding: set by decoder
e2f9490e
FB
1403 */
1404 int dtg_active_format;
1405#define FF_DTG_AFD_SAME 8
1406#define FF_DTG_AFD_4_3 9
1407#define FF_DTG_AFD_16_9 10
1408#define FF_DTG_AFD_14_9 11
1409#define FF_DTG_AFD_4_3_SP_14_9 13
1410#define FF_DTG_AFD_16_9_SP_14_9 14
1411#define FF_DTG_AFD_SP_4_3 15
1412
ebbcdc9a
MN
1413 /**
1414 * Maximum motion estimation search range in subpel units.
1415 * if 0 then no limit
1416 *
64863965
MN
1417 * - encoding: set by user.
1418 * - decoding: unused.
ebbcdc9a 1419 */
59e0ac8e 1420 int me_range;
ebbcdc9a 1421
65f7062d
MN
1422 /**
1423 * frame_rate_base.
1424 * for variable fps this is 1
1425 * - encoding: set by user.
1426 * - decoding: set by lavc.
1427 * @todo move this after frame_rate
1428 */
65f7062d 1429
1984f635
MN
1430 int frame_rate_base;
1431 /**
1432 * intra quantizer bias.
1433 * - encoding: set by user.
1434 * - decoding: unused
1435 */
1436 int intra_quant_bias;
1437#define FF_DEFAULT_QUANT_BIAS 999999
1438
1439 /**
1440 * inter quantizer bias.
1441 * - encoding: set by user.
1442 * - decoding: unused
1443 */
1444 int inter_quant_bias;
5cd62665
ZK
1445
1446 /**
1447 * color table ID.
1448 * - encoding: unused.
1449 * - decoding: which clrtable should be used for 8bit RGB images
1450 * table have to be stored somewhere FIXME
1451 */
1452 int color_table_id;
1984f635 1453
d90cf87b
MN
1454 /**
1455 * internal_buffer count.
1456 * Dont touch, used by lavc default_get_buffer()
1457 */
1458 int internal_buffer_count;
1459
1460 /**
1461 * internal_buffers.
1462 * Dont touch, used by lavc default_get_buffer()
1463 */
1464 void *internal_buffer;
158c7f05
MN
1465
1466#define FF_LAMBDA_SHIFT 7
1467#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1468#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1469#define FF_LAMBDA_MAX (256*128-1)
1470
1471#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1472 /**
1473 * global quality for codecs which cannot change it per frame.
1474 * this should be proportional to MPEG1/2/4 qscale.
1475 * - encoding: set by user.
1476 * - decoding: unused
1477 */
1478 int global_quality;
11e659c2
MN
1479
1480#define FF_CODER_TYPE_VLC 0
1481#define FF_CODER_TYPE_AC 1
1482 /**
1483 * coder type
1484 * - encoding: set by user.
1485 * - decoding: unused
1486 */
1487 int coder_type;
1488
1489 /**
1490 * context model
1491 * - encoding: set by user.
1492 * - decoding: unused
1493 */
1494 int context_model;
3bb07d61
MN
1495
1496 /**
1497 * slice flags
1498 * - encoding: unused
1499 * - decoding: set by user.
1500 */
1501 int slice_flags;
1502#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1503#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1504#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1505
fb364ada
IK
1506 /**
1507 * XVideo Motion Acceleration
1508 * - encoding: forbidden
1509 * - decoding: set by decoder
1510 */
1511 int xvmc_acceleration;
7d1c3fc1
MN
1512
1513 /**
1514 * macroblock decision mode
1515 * - encoding: set by user.
1516 * - decoding: unused
1517 */
1518 int mb_decision;
1519#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1520#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1521#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1522
1523 /**
1524 * custom intra quantization matrix
1525 * - encoding: set by user, can be NULL
1526 * - decoding: set by lavc
1527 */
1528 uint16_t *intra_matrix;
1529
1530 /**
1531 * custom inter quantization matrix
1532 * - encoding: set by user, can be NULL
1533 * - decoding: set by lavc
1534 */
1535 uint16_t *inter_matrix;
7d1c3fc1 1536
541ae140
MN
1537 /**
1538 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1539 * this is used to workaround some encoder bugs
1540 * - encoding: unused
1541 * - decoding: set by user, will be converted to upper case by lavc during init
1542 */
1543 unsigned int stream_codec_tag;
05fbd0a2
MN
1544
1545 /**
1546 * scene change detection threshold.
1547 * 0 is default, larger means fewer detected scene changes
1548 * - encoding: set by user.
1549 * - decoding: unused
1550 */
1551 int scenechange_threshold;
158c7f05
MN
1552
1553 /**
1554 * minimum lagrange multipler
1555 * - encoding: set by user.
1556 * - decoding: unused
1557 */
1558 int lmin;
1559
1560 /**
1561 * maximum lagrange multipler
1562 * - encoding: set by user.
1563 * - decoding: unused
1564 */
1565 int lmax;
2a2bbcb0
MM
1566
1567 /**
1568 * Palette control structure
1569 * - encoding: ??? (no palette-enabled encoder yet)
1570 * - decoding: set by user.
1571 */
1572 struct AVPaletteControl *palctrl;
821cb11f
MN
1573
1574 /**
1575 * noise reduction strength
1576 * - encoding: set by user.
1577 * - decoding: unused
1578 */
1579 int noise_reduction;
fa384dcc 1580
074c4ca7 1581 /**
e1c2a5a0
RT
1582 * called at the beginning of a frame to get cr buffer for it.
1583 * buffer type (size, hints) must be the same. lavc won't check it.
1584 * lavc will pass previous buffer in pic, function should return
1585 * same buffer or new buffer with old frame "painted" into it.
1586 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1587 * - encoding: unused
e1c2a5a0 1588 * - decoding: set by lavc, user can override
074c4ca7 1589 */
e1c2a5a0 1590 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1591
1592 /**
1593 * number of bits which should be loaded into the rc buffer before decoding starts
1594 * - encoding: set by user.
1595 * - decoding: unused
1596 */
1597 int rc_initial_buffer_occupancy;
1598
1599 /**
1600 *
1601 * - encoding: set by user.
1602 * - decoding: unused
1603 */
1604 int inter_threshold;
1605
1606 /**
1607 * CODEC_FLAG2_*.
1608 * - encoding: set by user.
1609 * - decoding: set by user.
1610 */
1611 int flags2;
7ebfc0ea
MN
1612
1613 /**
1614 * simulates errors in the bitstream to test error concealment.
1615 * - encoding: set by user.
1616 * - decoding: unused.
1617 */
1618 int error_rate;
a1e257b2
MN
1619
1620 /**
1621 * MP3 antialias algorithm, see FF_AA_* below.
1622 * - encoding: unused
1623 * - decoding: set by user
1624 */
1625 int antialias_algo;
1626#define FF_AA_AUTO 0
1627#define FF_AA_FASTINT 1 //not implemented yet
1628#define FF_AA_INT 2
1629#define FF_AA_FLOAT 3
77ea0d4b
MN
1630 /**
1631 * Quantizer noise shaping.
1632 * - encoding: set by user
1633 * - decoding: unused
1634 */
1635 int quantizer_noise_shaping;
9c3d33d6
MN
1636
1637 /**
1638 * Thread count.
1639 * is used to decide how many independant tasks should be passed to execute()
1640 * - encoding: set by user
1641 * - decoding: set by user
1642 */
1643 int thread_count;
1644
1645 /**
1646 * the codec may call this to execute several independant things. it will return only after
1647 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1648 * default implementation will execute the parts serially
399cec2f 1649 * @param count the number of things to execute
9c3d33d6
MN
1650 * - encoding: set by lavc, user can override
1651 * - decoding: set by lavc, user can override
1652 */
1653 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1654
1655 /**
1656 * Thread opaque.
1657 * can be used by execute() to store some per AVCodecContext stuff.
1658 * - encoding: set by execute()
1659 * - decoding: set by execute()
1660 */
1661 void *thread_opaque;
a4d36c11
MN
1662
1663 /**
f20f8a8b
MN
1664 * Motion estimation threshold. under which no motion estimation is
1665 * performed, but instead the user specified motion vectors are used
a4d36c11
MN
1666 *
1667 * - encoding: set by user
f20f8a8b 1668 * - decoding: unused
a4d36c11 1669 */
2750b827 1670 int me_threshold;
f20f8a8b
MN
1671
1672 /**
1673 * Macroblock threshold. under which the user specified macroblock types will be used
1674 * - encoding: set by user
1675 * - decoding: unused
1676 */
1677 int mb_threshold;
bf266e19
MN
1678
1679 /**
d4c5d2ad 1680 * precision of the intra dc coefficient - 8.
bf266e19
MN
1681 * - encoding: set by user
1682 * - decoding: unused
1683 */
1684 int intra_dc_precision;
d4c5d2ad
MN
1685
1686 /**
1687 * noise vs. sse weight for the nsse comparsion function.
1688 * - encoding: set by user
1689 * - decoding: unused
1690 */
1691 int nsse_weight;
0dfd33c3
MN
1692
1693 /**
1694 * number of macroblock rows at the top which are skiped.
1695 * - encoding: unused
1696 * - decoding: set by user
1697 */
1698 int skip_top;
1699
1700 /**
1701 * number of macroblock rows at the bottom which are skiped.
1702 * - encoding: unused
1703 * - decoding: set by user
1704 */
1705 int skip_bottom;
baced9f5
MN
1706
1707 /**
1708 * profile
1709 * - encoding: set by user
1710 * - decoding: set by lavc
1711 */
1712 int profile;
1713#define FF_PROFILE_UNKNOWN -99
1714
1715 /**
1716 * level
1717 * - encoding: set by user
1718 * - decoding: set by lavc
1719 */
1720 int level;
1721#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1722
1723 /**
1724 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1725 * - encoding: unused
1726 * - decoding: set by user
1727 */
1728 int lowres;
21adafec
MN
1729
1730 /**
bbf18b21 1731 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1732 * or other things are used
1733 * - encoding: unused
1734 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1735 */
1736 int coded_width, coded_height;
bbf18b21
MN
1737
1738 /**
1739 * frame skip threshold
1740 * - encoding: set by user
1741 * - decoding: unused
1742 */
1743 int frame_skip_threshold;
1744
1745 /**
1746 * frame skip factor
1747 * - encoding: set by user
1748 * - decoding: unused
1749 */
1750 int frame_skip_factor;
0fd6aea1
MN
1751
1752 /**
1753 * frame skip exponent
1754 * - encoding: set by user
1755 * - decoding: unused
1756 */
1757 int frame_skip_exp;
1758
1759 /**
1760 * frame skip comparission function
1761 * - encoding: set by user.
1762 * - decoding: unused
1763 */
1764 int frame_skip_cmp;
957c743a
CM
1765
1766 /**
1767 * border processing masking. raises the quantizer for mbs on the borders
1768 * of the picture.
1769 * - encoding: set by user
1770 * - decoding: unused
1771 */
1772 float border_masking;
6e0d8c06
MN
1773
1774 /**
1775 * minimum MB lagrange multipler.
1776 * - encoding: set by user.
1777 * - decoding: unused
1778 */
1779 int mb_lmin;
1780
1781 /**
1782 * maximum MB lagrange multipler.
1783 * - encoding: set by user.
1784 * - decoding: unused
1785 */
1786 int mb_lmax;
09c3e44e
MN
1787
1788 /**
1789 *
1790 * - encoding: set by user.
1791 * - decoding: unused
1792 */
1793 int me_penalty_compensation;
de6d9b64
FB
1794} AVCodecContext;
1795
97d96aaa 1796
64863965
MN
1797/**
1798 * AVOption.
1799 */
97d96aaa
ZK
1800typedef struct AVOption {
1801 /** options' name */
1802 const char *name; /* if name is NULL, it indicates a link to next */
bec89a84
ZK
1803 /** short English text help or const struct AVOption* subpointer */
1804 const char *help; // const struct AVOption* sub;
97d96aaa
ZK
1805 /** offset to context structure where the parsed value should be stored */
1806 int offset;
1807 /** options' type */
1808 int type;
64863965
MN
1809#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1810#define FF_OPT_TYPE_DOUBLE 2 ///< double
1811#define FF_OPT_TYPE_INT 3 ///< integer
1812#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1813#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1814//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1815#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1816#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1817 /** min value (min == max -> no limits) */
1818 double min;
1819 /** maximum value for double/int */
1820 double max;
1821 /** default boo [0,1]l/double/int value */
1822 double defval;
1823 /**
1824 * default string value (with optional semicolon delimited extra option-list
1825 * i.e. option1;option2;option3
1826 * defval might select other then first argument as default
1827 */
1828 const char *defstr;
97d96aaa
ZK
1829#define FF_OPT_MAX_DEPTH 10
1830} AVOption;
1831
64863965
MN
1832/**
1833 * AVCodec.
1834 */
de6d9b64 1835typedef struct AVCodec {
18f77016 1836 const char *name;
5d234974 1837 enum CodecType type;
9297ddd3 1838 enum CodecID id;
de6d9b64
FB
1839 int priv_data_size;
1840 int (*init)(AVCodecContext *);
0c1a9eda 1841 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1842 int (*close)(AVCodecContext *);
0fd90455 1843 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1844 uint8_t *buf, int buf_size);
bf89e6b1 1845 int capabilities;
40c5fa26 1846 void *dummy; // FIXME remove next time we break binary compatibility
de6d9b64 1847 struct AVCodec *next;
7a06ff14 1848 void (*flush)(AVCodecContext *);
b0df362b 1849 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1850 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1851} AVCodec;
1852
97d96aaa 1853/**
d7425f59
MN
1854 * four components are given, that's all.
1855 * the last component is alpha
1856 */
de6d9b64 1857typedef struct AVPicture {
0c1a9eda 1858 uint8_t *data[4];
cd394651 1859 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1860} AVPicture;
1861
ba118447
MM
1862/**
1863 * AVPaletteControl
1864 * This structure defines a method for communicating palette changes
1865 * between and demuxer and a decoder.
1866 */
2e99641b 1867#define AVPALETTE_SIZE 1024
432d84c3 1868#define AVPALETTE_COUNT 256
ba118447
MM
1869typedef struct AVPaletteControl {
1870
1871 /* demuxer sets this to 1 to indicate the palette has changed;
1872 * decoder resets to 0 */
1873 int palette_changed;
1874
2a2bbcb0
MM
1875 /* 4-byte ARGB palette entries, stored in native byte order; note that
1876 * the individual palette components should be on a 8-bit scale; if
1877 * the palette data comes from a IBM VGA native format, the component
1878 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1879 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1880
1881} AVPaletteControl;
1882
de6d9b64
FB
1883extern AVCodec ac3_encoder;
1884extern AVCodec mp2_encoder;
9d36bdc9 1885extern AVCodec mp3lame_encoder;
81e0d0b4 1886extern AVCodec oggvorbis_encoder;
5c5dea3f 1887extern AVCodec oggtheora_encoder;
29d48296 1888extern AVCodec faac_encoder;
1ddadfa9 1889extern AVCodec xvid_encoder;
de6d9b64 1890extern AVCodec mpeg1video_encoder;
029911d1 1891extern AVCodec mpeg2video_encoder;
1c3990db 1892extern AVCodec h261_encoder;
de6d9b64
FB
1893extern AVCodec h263_encoder;
1894extern AVCodec h263p_encoder;
d4f5d74a 1895extern AVCodec flv_encoder;
de6d9b64 1896extern AVCodec rv10_encoder;
68b94c35 1897extern AVCodec rv20_encoder;
6faa4645 1898extern AVCodec dvvideo_encoder;
de6d9b64 1899extern AVCodec mjpeg_encoder;
b1e6b355 1900extern AVCodec ljpeg_encoder;
4eff7cf4 1901extern AVCodec png_encoder;
5b6d5596
MN
1902extern AVCodec ppm_encoder;
1903extern AVCodec pgm_encoder;
1904extern AVCodec pgmyuv_encoder;
1905extern AVCodec pbm_encoder;
1906extern AVCodec pam_encoder;
bf89e6b1 1907extern AVCodec mpeg4_encoder;
84afee34
MN
1908extern AVCodec msmpeg4v1_encoder;
1909extern AVCodec msmpeg4v2_encoder;
1910extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1911extern AVCodec wmv1_encoder;
1912extern AVCodec wmv2_encoder;
11f18faf 1913extern AVCodec huffyuv_encoder;
f37b9768 1914extern AVCodec ffvhuff_encoder;
0da71265 1915extern AVCodec h264_encoder;
3d2e8cce 1916extern AVCodec asv1_encoder;
9b56edf5 1917extern AVCodec asv2_encoder;
be3564ed 1918extern AVCodec vcr1_encoder;
5e20f836 1919extern AVCodec ffv1_encoder;
791e7b83 1920extern AVCodec snow_encoder;
c3bf0288 1921extern AVCodec mdec_encoder;
a273bbfb 1922extern AVCodec zlib_encoder;
54f5fd22
AB
1923extern AVCodec sonic_encoder;
1924extern AVCodec sonic_ls_encoder;
3b64893d 1925extern AVCodec svq1_encoder;
6662ec29 1926extern AVCodec x264_encoder;
de6d9b64
FB
1927
1928extern AVCodec h263_decoder;
c6148de2 1929extern AVCodec h261_decoder;
bf89e6b1 1930extern AVCodec mpeg4_decoder;
84afee34
MN
1931extern AVCodec msmpeg4v1_decoder;
1932extern AVCodec msmpeg4v2_decoder;
1933extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1934extern AVCodec wmv1_decoder;
0151a6f5 1935extern AVCodec wmv2_decoder;
21aa398f
AB
1936extern AVCodec vc9_decoder;
1937extern AVCodec wmv3_decoder;
922bc38d
MN
1938extern AVCodec mpeg1video_decoder;
1939extern AVCodec mpeg2video_decoder;
c512b303 1940extern AVCodec mpegvideo_decoder;
fb364ada 1941extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1942extern AVCodec h263i_decoder;
d4f5d74a 1943extern AVCodec flv_decoder;
de6d9b64 1944extern AVCodec rv10_decoder;
68b94c35 1945extern AVCodec rv20_decoder;
3f05305d
MN
1946extern AVCodec rv30_decoder;
1947extern AVCodec rv40_decoder;
be8ffec9 1948extern AVCodec svq1_decoder;
8b82a956 1949extern AVCodec svq3_decoder;
020fcc94 1950extern AVCodec dvvideo_decoder;
bc8d1857
FB
1951extern AVCodec wmav1_decoder;
1952extern AVCodec wmav2_decoder;
4e66ab3b 1953extern AVCodec mjpeg_decoder;
b135d9fb 1954extern AVCodec mjpegb_decoder;
5e83dec4 1955extern AVCodec sp5x_decoder;
4eff7cf4 1956extern AVCodec png_decoder;
4b1f4f23 1957extern AVCodec mp2_decoder;
a96b68b7 1958extern AVCodec mp3_decoder;
1ede228a 1959extern AVCodec mp3adu_decoder;
d2a7718d 1960extern AVCodec mp3on4_decoder;
3f95e843
FR
1961extern AVCodec mace3_decoder;
1962extern AVCodec mace6_decoder;
11f18faf 1963extern AVCodec huffyuv_decoder;
f37b9768 1964extern AVCodec ffvhuff_decoder;
3aca208a 1965extern AVCodec oggvorbis_decoder;
5c5dea3f 1966extern AVCodec oggtheora_decoder;
f70f7c6d 1967extern AVCodec cyuv_decoder;
0da71265 1968extern AVCodec h264_decoder;
deabd4fd 1969extern AVCodec indeo3_decoder;
d86053a4 1970extern AVCodec vp3_decoder;
f44ee2c3 1971extern AVCodec theora_decoder;
891f64b3 1972extern AVCodec amr_nb_decoder;
bc634f6f 1973extern AVCodec amr_nb_encoder;
d663a1fd
MN
1974extern AVCodec amr_wb_encoder;
1975extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1976extern AVCodec aac_decoder;
1977extern AVCodec mpeg4aac_decoder;
3d2e8cce 1978extern AVCodec asv1_decoder;
9b56edf5 1979extern AVCodec asv2_decoder;
be3564ed 1980extern AVCodec vcr1_decoder;
3aff069b 1981extern AVCodec cljr_decoder;
5e20f836 1982extern AVCodec ffv1_decoder;
791e7b83 1983extern AVCodec snow_decoder;
8809cfee 1984extern AVCodec fourxm_decoder;
c3bf0288 1985extern AVCodec mdec_decoder;
3ef8be2b
MM
1986extern AVCodec roq_decoder;
1987extern AVCodec interplay_video_decoder;
9937e686 1988extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1989extern AVCodec rpza_decoder;
1990extern AVCodec cinepak_decoder;
1991extern AVCodec msrle_decoder;
1992extern AVCodec msvideo1_decoder;
6955a882 1993extern AVCodec vqa_decoder;
4120a53a 1994extern AVCodec idcin_decoder;
1dc1ed99 1995extern AVCodec eightbps_decoder;
11e29a41 1996extern AVCodec smc_decoder;
42cad81a 1997extern AVCodec flic_decoder;
fafa0b75
MM
1998extern AVCodec vmdvideo_decoder;
1999extern AVCodec vmdaudio_decoder;
9a4117d5 2000extern AVCodec truemotion1_decoder;
a273bbfb
RT
2001extern AVCodec mszh_decoder;
2002extern AVCodec zlib_decoder;
b8414bbd
NK
2003extern AVCodec ra_144_decoder;
2004extern AVCodec ra_288_decoder;
3ef8be2b
MM
2005extern AVCodec roq_dpcm_decoder;
2006extern AVCodec interplay_dpcm_decoder;
9937e686 2007extern AVCodec xan_dpcm_decoder;
d08d7142 2008extern AVCodec sol_dpcm_decoder;
54f5fd22 2009extern AVCodec sonic_decoder;
070ed1bc 2010extern AVCodec qtrle_decoder;
ac2570a8 2011extern AVCodec flac_decoder;
9d53d58e 2012extern AVCodec tscc_decoder;
d0a0bbd2 2013extern AVCodec ulti_decoder;
d08d7142 2014extern AVCodec qdraw_decoder;
ab711b3c 2015extern AVCodec xl_decoder;
acfd8f0f 2016extern AVCodec qpeg_decoder;
85ad5695 2017extern AVCodec shorten_decoder;
9c7fb608 2018extern AVCodec loco_decoder;
a8a15e9d 2019extern AVCodec wnv1_decoder;
589f8220 2020extern AVCodec aasc_decoder;
6d6d7970 2021extern AVCodec alac_decoder;
034eeaa1 2022extern AVCodec ws_snd1_decoder;
856dbbff 2023extern AVCodec indeo2_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);
9c3d33d6
MN
2189//FIXME func typedef
2190
7a06ff14
MN
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,
0c1a9eda
ZK
2202 uint8_t *buf, int buf_size);
2203int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2204 int *data_size_ptr,
0c1a9eda
ZK
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);
de6d9b64
FB
2210
2211int avcodec_close(AVCodecContext *avctx);
2212
2213void avcodec_register_all(void);
a96b68b7 2214
1c2a8c7f
MN
2215void avcodec_flush_buffers(AVCodecContext *avctx);
2216
88730be6
MR
2217void avcodec_default_free_buffers(AVCodecContext *s);
2218
14bea432 2219/* misc usefull functions */
d8085ea7
MN
2220
2221/**
2222 * returns a single letter to describe the picture type
2223 */
2224char av_get_pict_type_char(int pict_type);
2225
14bea432
MN
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.
14bea432
MN
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
1f018225
MN
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
8424cf50
FB
2246/* frame parsing */
2247typedef struct AVCodecParserContext {
2248 void *priv_data;
2249 struct AVCodecParser *parser;
2250 int64_t frame_offset; /* offset of the current frame */
2251 int64_t cur_offset; /* current offset
2252 (incremented by each av_parser_parse()) */
2253 int64_t last_frame_offset; /* offset of the last frame */
2254 /* video info */
2255 int pict_type; /* XXX: put it back in AVCodecContext */
2256 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2257 int64_t pts; /* pts of the current frame */
2258 int64_t dts; /* dts of the current frame */
2259
2260 /* private data */
2261 int64_t last_pts;
2262 int64_t last_dts;
a62aecce 2263 int fetch_timestamp;
b84f2a35
FB
2264
2265#define AV_PARSER_PTS_NB 4
2266 int cur_frame_start_index;
2267 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2268 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2269 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
8424cf50
FB
2270} AVCodecParserContext;
2271
2272typedef struct AVCodecParser {
99f06236 2273 int codec_ids[5]; /* several codec IDs are permitted */
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FB
2274 int priv_data_size;
2275 int (*parser_init)(AVCodecParserContext *s);
2276 int (*parser_parse)(AVCodecParserContext *s,
2277 AVCodecContext *avctx,
2278 uint8_t **poutbuf, int *poutbuf_size,
2279 const uint8_t *buf, int buf_size);
2280 void (*parser_close)(AVCodecParserContext *s);
2281 struct AVCodecParser *next;
2282} AVCodecParser;
2283
2284extern AVCodecParser *av_first_parser;
2285
2286void av_register_codec_parser(AVCodecParser *parser);
2287AVCodecParserContext *av_parser_init(int codec_id);
2288int av_parser_parse(AVCodecParserContext *s,
2289 AVCodecContext *avctx,
2290 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2291 const uint8_t *buf, int buf_size,
2292 int64_t pts, int64_t dts);
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FB
2293void av_parser_close(AVCodecParserContext *s);
2294
2295extern AVCodecParser mpegvideo_parser;
2296extern AVCodecParser mpeg4video_parser;
c6148de2 2297extern AVCodecParser h261_parser;
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FB
2298extern AVCodecParser h263_parser;
2299extern AVCodecParser h264_parser;
8e6325b9 2300extern AVCodecParser mjpeg_parser;
99f06236 2301extern AVCodecParser pnm_parser;
8424cf50
FB
2302extern AVCodecParser mpegaudio_parser;
2303extern AVCodecParser ac3_parser;
2304
544eb99c 2305/* memory */
e4eadb4b 2306void *av_malloc(unsigned int size);
18f77016 2307void *av_mallocz(unsigned int size);
8e1e6f31 2308void *av_realloc(void *ptr, unsigned int size);
544eb99c 2309void av_free(void *ptr);
8e1e6f31 2310char *av_strdup(const char *s);
81c5f887 2311void av_freep(void *ptr);
97d96aaa 2312void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2313/* for static data only */
2314/* call av_free_static to release all staticaly allocated tables */
628d601b 2315void av_free_static(void);
8d1f2ba5 2316void *av_mallocz_static(unsigned int size);
073c2593 2317void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2318
fc384777
MM
2319/* add by bero : in adx.c */
2320int is_adx(const unsigned char *buf,size_t bufsize);
2321
e1c2a5a0
RT
2322void img_copy(AVPicture *dst, const AVPicture *src,
2323 int pix_fmt, int width, int height);
2324
9b879566
MB
2325/* av_log API */
2326
2327#include <stdarg.h>
2328
d8019eb5 2329#define AV_LOG_QUIET -1
9b879566
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2330#define AV_LOG_ERROR 0
2331#define AV_LOG_INFO 1
2332#define AV_LOG_DEBUG 2
2333
f4bd8cf0 2334#ifdef __GNUC__
bc874dae 2335extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2336#else
2337extern void av_log(void*, int level, const char *fmt, ...);
2338#endif
2339
bc874dae 2340extern void av_vlog(void*, int level, const char *fmt, va_list);
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2341extern int av_log_get_level(void);
2342extern void av_log_set_level(int);
bc874dae 2343extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2344
3a278992 2345/* endian macros */
e96682e6 2346#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2347#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2348#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2349 (((uint8_t*)(x))[1] << 16) | \
2350 (((uint8_t*)(x))[2] << 8) | \
2351 ((uint8_t*)(x))[3])
2352#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2353#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2354 (((uint8_t*)(x))[2] << 16) | \
2355 (((uint8_t*)(x))[1] << 8) | \
2356 ((uint8_t*)(x))[0])
e96682e6 2357#endif
3a278992 2358
02d697aa
ZK
2359#ifdef __cplusplus
2360}
2361#endif
2362
a96b68b7 2363#endif /* AVCODEC_H */