Support for AMR Interface Format 2 patch by ("Torsten Martinsen" <tma gatehouse dk>)
[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"
9c7fb608 20#define LIBAVCODEC_BUILD 4744
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,
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108
109 /* various pcm "codecs" */
17179d2d 110 CODEC_ID_PCM_S16LE= 0x10000,
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111 CODEC_ID_PCM_S16BE,
112 CODEC_ID_PCM_U16LE,
113 CODEC_ID_PCM_U16BE,
114 CODEC_ID_PCM_S8,
115 CODEC_ID_PCM_U8,
116 CODEC_ID_PCM_MULAW,
117 CODEC_ID_PCM_ALAW,
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118
119 /* various adpcm codecs */
17179d2d 120 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 121 CODEC_ID_ADPCM_IMA_WAV,
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122 CODEC_ID_ADPCM_IMA_DK3,
123 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 124 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 125 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 126 CODEC_ID_ADPCM_MS,
e2a7bb28 127 CODEC_ID_ADPCM_4XM,
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128 CODEC_ID_ADPCM_XA,
129 CODEC_ID_ADPCM_ADX,
7d8379f2 130 CODEC_ID_ADPCM_EA,
e5966052 131 CODEC_ID_ADPCM_G726,
b3bfb299 132 CODEC_ID_ADPCM_CT,
659c3692 133 CODEC_ID_ADPCM_SWF,
891f64b3 134
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135 /* AMR */
136 CODEC_ID_AMR_NB= 0x12000,
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137 CODEC_ID_AMR_WB,
138
b8414bbd 139 /* RealAudio codecs*/
17179d2d 140 CODEC_ID_RA_144= 0x13000,
b8414bbd 141 CODEC_ID_RA_288,
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142
143 /* various DPCM codecs */
17179d2d 144 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 145 CODEC_ID_INTERPLAY_DPCM,
9937e686 146 CODEC_ID_XAN_DPCM,
d08d7142 147 CODEC_ID_SOL_DPCM,
985180a1 148
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149 CODEC_ID_MP2= 0x15000,
150 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
151 CODEC_ID_AAC,
152 CODEC_ID_MPEG4AAC,
153 CODEC_ID_AC3,
154 CODEC_ID_DTS,
155 CODEC_ID_VORBIS,
156 CODEC_ID_DVAUDIO,
157 CODEC_ID_WMAV1,
158 CODEC_ID_WMAV2,
159 CODEC_ID_MACE3,
160 CODEC_ID_MACE6,
161 CODEC_ID_VMDAUDIO,
162 CODEC_ID_SONIC,
163 CODEC_ID_SONIC_LS,
ac2570a8 164 CODEC_ID_FLAC,
1ede228a 165 CODEC_ID_MP3ADU,
d2a7718d 166 CODEC_ID_MP3ON4,
85ad5695 167 CODEC_ID_SHORTEN,
ac2570a8 168
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169 CODEC_ID_OGGTHEORA= 0x16000,
170
17179d2d 171 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 172 stream (only used by libavformat) */
de6d9b64 173};
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174
175/* CODEC_ID_MP3LAME is absolete */
176#define CODEC_ID_MP3LAME CODEC_ID_MP3
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177
178enum CodecType {
4a663d80 179 CODEC_TYPE_UNKNOWN = -1,
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180 CODEC_TYPE_VIDEO,
181 CODEC_TYPE_AUDIO,
985180a1 182 CODEC_TYPE_DATA,
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183};
184
64863965 185/**
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186 * Pixel format. Notes:
187 *
188 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
189 * color is put together as:
190 * (A << 24) | (R << 16) | (G << 8) | B
191 * This is stored as BGRA on little endian CPU architectures and ARGB on
192 * big endian CPUs.
193 *
194 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
195 * image data is stored in AVFrame.data[0]. The palette is transported in
196 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
197 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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198 * also endian-specific). Note also that the individual RGB palette
199 * components stored in AVFrame.data[1] should be in the range 0..255.
200 * This is important as many custom PAL8 video codecs that were designed
201 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 202 */
de6d9b64 203enum PixelFormat {
cd394651 204 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
ebb177dd 205 PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
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206 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
207 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
208 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
209 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 210 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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211 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
212 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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213 PIX_FMT_RGB565, ///< always stored in cpu endianness
214 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 215 PIX_FMT_GRAY8,
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216 PIX_FMT_MONOWHITE, ///< 0 is white
217 PIX_FMT_MONOBLACK, ///< 0 is black
218 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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219 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
220 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
221 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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222 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
223 PIX_FMT_XVMC_MPEG2_IDCT,
ebb177dd 224 PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1
f02be79d 225 PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
dab64ebc 226 PIX_FMT_NB,
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227};
228
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229/* currently unused, may be used if 24/32 bits samples ever supported */
230enum SampleFormat {
64863965 231 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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232 SAMPLE_FMT_S32, ///< signed 32 bits
233 SAMPLE_FMT_FLT, ///< float
234 SAMPLE_FMT_DBL, ///< double
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235};
236
de6d9b64 237/* in bytes */
bc8d1857 238#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 239
d7425f59 240/**
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241 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
242 * this is mainly needed because some optimized bitstream readers read
243 * 32 or 64 bit at once and could read over the end<br>
244 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
245 * MPEG bitstreams could cause overread and segfault
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246 */
247#define FF_INPUT_BUFFER_PADDING_SIZE 8
248
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249/**
250 * minimum encoding buffer size.
251 * used to avoid some checks during header writing
252 */
253#define FF_MIN_BUFFER_SIZE 16384
254
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255/* motion estimation type, EPZS by default */
256enum Motion_Est_ID {
101bea5f 257 ME_ZERO = 1,
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258 ME_FULL,
259 ME_LOG,
260 ME_PHODS,
261 ME_EPZS,
262 ME_X1
263};
264
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265enum AVRounding {
266 AV_ROUND_ZERO = 0, ///< round toward zero
267 AV_ROUND_INF = 1, ///< round away from zero
268 AV_ROUND_DOWN = 2, ///< round toward -infinity
269 AV_ROUND_UP = 3, ///< round toward +infinity
270 AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
271};
272
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273typedef struct RcOverride{
274 int start_frame;
275 int end_frame;
276 int qscale; // if this is 0 then quality_factor will be used instead
277 float quality_factor;
278} RcOverride;
279
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280/* only for ME compatiblity with old apps */
281extern int motion_estimation_method;
282
4e00e76b 283#define FF_MAX_B_FRAMES 8
9dbcbd92 284
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285/* encoding support
286 these flags can be passed in AVCodecContext.flags before initing
287 Note: note not everything is supported yet
288*/
de6d9b64 289
64863965 290#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 291#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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292#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
293#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 294#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 295#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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296/* parent program gurantees that the input for b-frame containing streams is not written to
297 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 298#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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299#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
300#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
301#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
302#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
303#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
304#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
305#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 306 of only at frame boundaries */
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307#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
308#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 309#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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310#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
311#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
312#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
313#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 314/* Fx : Flag for h263+ extra options */
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315#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
316#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 317#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 318#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 319#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 320#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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321#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
322#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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323#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
324#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 325#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 326#define CODEC_FLAG_CLOSED_GOP 0x80000000
6fc5b059 327#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 328#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 329#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
6fc5b059 330
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331/* Unsupported options :
332 * Syntax Arithmetic coding (SAC)
21e59552 333 * Reference Picture Selection
ba58dabc 334 * Independant Segment Decoding */
21e59552 335/* /Fx */
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336/* codec capabilities */
337
64863965 338#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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339/**
340 * Codec uses get_buffer() for allocating buffers.
341 * direct rendering method 1
342 */
343#define CODEC_CAP_DR1 0x0002
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344/* if 'parse_only' field is true, then avcodec_parse_frame() can be
345 used */
346#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 347#define CODEC_CAP_TRUNCATED 0x0008
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348/* codec can export data for HW decoding (XvMC) */
349#define CODEC_CAP_HWACCEL 0x0010
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350/**
351 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
352 * if this is not set, the codec is guranteed to never be feeded with NULL data
353 */
6f824977 354#define CODEC_CAP_DELAY 0x0020
bf89e6b1 355
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356//the following defines might change, so dont expect compatibility if u use them
357#define MB_TYPE_INTRA4x4 0x0001
358#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
359#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
360#define MB_TYPE_16x16 0x0008
361#define MB_TYPE_16x8 0x0010
362#define MB_TYPE_8x16 0x0020
363#define MB_TYPE_8x8 0x0040
364#define MB_TYPE_INTERLACED 0x0080
365#define MB_TYPE_DIRECT2 0x0100 //FIXME
366#define MB_TYPE_ACPRED 0x0200
367#define MB_TYPE_GMC 0x0400
368#define MB_TYPE_SKIP 0x0800
369#define MB_TYPE_P0L0 0x1000
370#define MB_TYPE_P1L0 0x2000
371#define MB_TYPE_P0L1 0x4000
372#define MB_TYPE_P1L1 0x8000
373#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
374#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
375#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
376#define MB_TYPE_QUANT 0x00010000
377#define MB_TYPE_CBP 0x00020000
378//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
379
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380/**
381 * Pan Scan area.
382 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
383 */
384typedef struct AVPanScan{
385 /**
386 * id.
387 * - encoding: set by user.
388 * - decoding: set by lavc
389 */
390 int id;
391
392 /**
393 * width and height in 1/16 pel
394 * - encoding: set by user.
395 * - decoding: set by lavc
396 */
397 int width;
398 int height;
399
400 /**
401 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
402 * - encoding: set by user.
403 * - decoding: set by lavc
404 */
405 int16_t position[3][2];
406}AVPanScan;
407
492cd3a9 408#define FF_COMMON_FRAME \
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409 /**\
410 * pointer to the picture planes.\
411 * this might be different from the first allocated byte\
412 * - encoding: \
413 * - decoding: \
414 */\
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415 uint8_t *data[4];\
416 int linesize[4];\
417 /**\
32db2b1d 418 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 419 * this isnt used by lavc unless the default get/release_buffer() is used\
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420 * - encoding: \
421 * - decoding: \
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422 */\
423 uint8_t *base[4];\
424 /**\
425 * 1 -> keyframe, 0-> not\
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426 * - encoding: set by lavc\
427 * - decoding: set by lavc\
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428 */\
429 int key_frame;\
430\
431 /**\
0da71265 432 * picture type of the frame, see ?_TYPE below.\
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433 * - encoding: set by lavc for coded_picture (and set by user for input)\
434 * - decoding: set by lavc\
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435 */\
436 int pict_type;\
437\
438 /**\
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439 * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
440 * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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441 * - encoding: MUST be set by user\
442 * - decoding: set by lavc\
1e491e29 443 */\
be6784dc 444 int64_t pts;\
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445\
446 /**\
447 * picture number in bitstream order.\
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448 * - encoding: set by\
449 * - decoding: set by lavc\
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450 */\
451 int coded_picture_number;\
452 /**\
1e491e29 453 * picture number in display order.\
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454 * - encoding: set by\
455 * - decoding: set by lavc\
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456 */\
457 int display_picture_number;\
458\
459 /**\
158c7f05 460 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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461 * - encoding: set by lavc for coded_picture (and set by user for input)\
462 * - decoding: set by lavc\
1e491e29 463 */\
158c7f05 464 int quality; \
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465\
466 /**\
467 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 468 * set to INT_MAX if the buffer has not been used yet \
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469 * - encoding: unused\
470 * - decoding: MUST be set by get_buffer()\
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471 */\
472 int age;\
473\
474 /**\
475 * is this picture used as reference\
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476 * - encoding: unused\
477 * - decoding: set by lavc (before get_buffer() call))\
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478 */\
479 int reference;\
480\
481 /**\
482 * QP table\
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483 * - encoding: unused\
484 * - decoding: set by lavc\
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485 */\
486 int8_t *qscale_table;\
487 /**\
488 * QP store stride\
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489 * - encoding: unused\
490 * - decoding: set by lavc\
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491 */\
492 int qstride;\
493\
494 /**\
495 * mbskip_table[mb]>=1 if MB didnt change\
496 * stride= mb_width = (width+15)>>4\
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497 * - encoding: unused\
498 * - decoding: set by lavc\
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499 */\
500 uint8_t *mbskip_table;\
501\
502 /**\
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503 * Motion vector table.\
504 * @code\
505 * example:\
506 * int mv_sample_log2= 4 - motion_subsample_log2;\
507 * int mb_width= (width+15)>>4;\
508 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
509 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
510 * @endcode\
a4d36c11 511 * - encoding: set by user\
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512 * - decoding: set by lavc\
513 */\
514 int16_t (*motion_val[2])[2];\
515\
516 /**\
517 * Macroblock type table\
518 * mb_type_base + mb_width + 2\
a4d36c11 519 * - encoding: set by user\
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520 * - decoding: set by lavc\
521 */\
522 uint32_t *mb_type;\
523\
524 /**\
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525 * log2 of the size of the block which a single vector in motion_val represents: \
526 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
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527 * - encoding: unused\
528 * - decoding: set by lavc\
529 */\
530 uint8_t motion_subsample_log2;\
531\
532 /**\
1e491e29 533 * for some private data of the user\
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534 * - encoding: unused\
535 * - decoding: set by user\
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536 */\
537 void *opaque;\
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538\
539 /**\
540 * error\
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541 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
542 * - decoding: unused\
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543 */\
544 uint64_t error[4];\
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545\
546 /**\
547 * type of the buffer (to keep track of who has to dealloc data[*])\
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548 * - encoding: set by the one who allocs it\
549 * - decoding: set by the one who allocs it\
3db320ea 550 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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551 */\
552 int type;\
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553 \
554 /**\
555 * when decoding, this signal how much the picture must be delayed.\
556 * extra_delay = repeat_pict / (2*fps)\
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557 * - encoding: unused\
558 * - decoding: set by lavc\
2ec23b6d 559 */\
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560 int repeat_pict;\
561 \
562 /**\
563 * \
564 */\
565 int qscale_type;\
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566 \
567 /**\
568 * The content of the picture is interlaced.\
569 * - encoding: set by user\
570 * - decoding: set by lavc (default 0)\
571 */\
572 int interlaced_frame;\
573 \
574 /**\
9dad924e 575 * if the content is interlaced, is top field displayed first.\
2744ca9a 576 * - encoding: set by user\
9dad924e 577 * - decoding: set by lavc\
2744ca9a 578 */\
9dad924e 579 int top_field_first;\
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580 \
581 /**\
582 * Pan scan.\
583 * - encoding: set by user\
584 * - decoding: set by lavc\
585 */\
586 AVPanScan *pan_scan;\
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587 \
588 /**\
589 * tell user application that palette has changed from previous frame.\
590 * - encoding: ??? (no palette-enabled encoder yet)\
591 * - decoding: set by lavc (default 0)\
592 */\
593 int palette_has_changed;\
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594 \
595 /**\
596 * Codec suggestion on buffer type if != 0\
597 * - encoding: unused\
598 * - decoding: set by lavc (before get_buffer() call))\
599 */\
600 int buffer_hints;\
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601\
602 /**\
603 * DCT coeffitients\
604 * - encoding: unused\
605 * - decoding: set by lavc\
606 */\
607 short *dct_coeff;\
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608\
609 /**\
610 * Motion referece frame index\
611 * - encoding: set by user\
612 * - decoding: set by lavc\
613 */\
614 int8_t *ref_index[2];
2ec23b6d 615
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616#define FF_QSCALE_TYPE_MPEG1 0
617#define FF_QSCALE_TYPE_MPEG2 1
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618
619#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 620#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 621#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 622#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 623
1e491e29 624
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625#define FF_I_TYPE 1 // Intra
626#define FF_P_TYPE 2 // Predicted
627#define FF_B_TYPE 3 // Bi-dir predicted
628#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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629#define FF_SI_TYPE 5
630#define FF_SP_TYPE 6
1e491e29 631
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632#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
633#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
634#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
635#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
636
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MN
637/**
638 * Audio Video Frame.
639 */
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640typedef struct AVFrame {
641 FF_COMMON_FRAME
642} AVFrame;
1e491e29 643
14bea432 644#define DEFAULT_FRAME_RATE_BASE 1001000
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645
646/**
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647 * Used by av_log
648 */
649typedef struct AVCLASS AVClass;
650struct AVCLASS {
651 const char* class_name;
652 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
653 or AVFormatContext, which begin with an AVClass.
654 Needed because av_log is in libavcodec and has no visibility
655 of AVIn/OutputFormat */
656};
657
658/**
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659 * main external api structure.
660 */
de6d9b64 661typedef struct AVCodecContext {
b71901e6 662 /**
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663 * Info on struct for av_log
664 * - set by avcodec_alloc_context
665 */
43465395 666 AVClass *av_class;
bc874dae 667 /**
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668 * the average bitrate.
669 * - encoding: set by user. unused for constant quantizer encoding
670 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 671 */
de6d9b64 672 int bit_rate;
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673
674 /**
64863965 675 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 676 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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677 * - encoding: set by user. unused for constant quantizer encoding
678 * - decoding: unused
b71901e6
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679 */
680 int bit_rate_tolerance;
681
682 /**
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683 * CODEC_FLAG_*.
684 * - encoding: set by user.
685 * - decoding: set by user.
b71901e6 686 */
de6d9b64 687 int flags;
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688
689 /**
690 * some codecs needs additionnal format info. It is stored here
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691 * - encoding: set by user.
692 * - decoding: set by lavc. (FIXME is this ok?)
b71901e6
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693 */
694 int sub_id;
695
696 /**
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697 * motion estimation algorithm used for video coding.
698 * - encoding: MUST be set by user.
699 * - decoding: unused
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700 */
701 int me_method;
702
703 /**
64863965 704 * some codecs need / can use extra-data like huffman tables.
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705 * mjpeg: huffman tables
706 * rv10: additional flags
b704e742 707 * mpeg4: global headers (they can be in the bitstream or here)
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708 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
709 * then extradata_size to avoid prolems if its read with the bitstream reader
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710 * - encoding: set/allocated/freed by lavc.
711 * - decoding: set/allocated/freed by user.
b71901e6 712 */
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713 void *extradata;
714 int extradata_size;
715
de6d9b64 716 /* video only */
b71901e6 717 /**
14bea432 718 * frames per sec multiplied by frame_rate_base.
b71901e6 719 * for variable fps this is the precission, so if the timestamps
14bea432 720 * can be specified in msec precssion then this is 1000*frame_rate_base
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721 * - encoding: MUST be set by user
722 * - decoding: set by lavc. 0 or the frame_rate if available
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723 */
724 int frame_rate;
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725
726 /**
21adafec 727 * picture width / height.
64863965 728 * - encoding: MUST be set by user.
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729 * - decoding: set by lavc.
730 * Note, for compatibility its possible to set this instead of
731 * coded_width/height before decoding
b71901e6 732 */
de6d9b64 733 int width, height;
b71901e6 734
e769f053 735#define FF_ASPECT_EXTENDED 15
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736
737 /**
64863965
MN
738 * the number of pictures in a group of pitures, or 0 for intra_only.
739 * - encoding: set by user.
740 * - decoding: unused
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741 */
742 int gop_size;
743
744 /**
64863965 745 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 746 * - encoding: set by user.
64863965 747 * - decoding: set by lavc.
b71901e6 748 */
e4eadb4b 749 enum PixelFormat pix_fmt;
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MK
750
751 /**
752 * Frame rate emulation. If not zero lower layer (i.e. format handler)
753 * has to read frames at native frame rate.
754 * - encoding: set by user.
755 * - decoding: unused.
756 */
757 int rate_emu;
758
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759 /**
760 * if non NULL, 'draw_horiz_band' is called by the libavcodec
761 * decoder to draw an horizontal band. It improve cache usage. Not
762 * all codecs can do that. You must check the codec capabilities
763 * before
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764 * - encoding: unused
765 * - decoding: set by user.
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766 * @param height the height of the slice
767 * @param y the y position of the slice
768 * @param type 1->top field, 2->bottom field, 3->frame
769 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 770 */
bf89e6b1 771 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 772 const AVFrame *src, int offset[4],
3bb07d61 773 int y, int type, int height);
bf89e6b1 774
de6d9b64 775 /* audio only */
64863965 776 int sample_rate; ///< samples per sec
de6d9b64 777 int channels;
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778
779 /**
780 * audio sample format.
781 * - encoding: set by user.
782 * - decoding: set by lavc.
783 */
784 enum SampleFormat sample_fmt; ///< sample format, currenly unused
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785
786 /* the following data should not be initialized */
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787 int frame_size; ///< in samples, initialized when calling 'init'
788 int frame_number; ///< audio or video frame number
789 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 790
b71901e6 791 /**
b71901e6 792 * number of frames the decoded output will be delayed relative to
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793 * the encoded input.
794 * - encoding: set by lavc.
795 * - decoding: unused
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796 */
797 int delay;
1ff662cc 798
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799 /* - encoding parameters */
800 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
801 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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802
803 /**
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MN
804 * minimum quantizer.
805 * - encoding: set by user.
806 * - decoding: unused
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807 */
808 int qmin;
809
810 /**
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811 * maximum quantizer.
812 * - encoding: set by user.
813 * - decoding: unused
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814 */
815 int qmax;
816
817 /**
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MN
818 * maximum quantizer difference etween frames.
819 * - encoding: set by user.
820 * - decoding: unused
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821 */
822 int max_qdiff;
823
824 /**
64863965 825 * maximum number of b frames between non b frames.
b71901e6 826 * note: the output will be delayed by max_b_frames+1 relative to the input
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827 * - encoding: set by user.
828 * - decoding: unused
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829 */
830 int max_b_frames;
831
832 /**
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833 * qscale factor between ip and b frames.
834 * - encoding: set by user.
835 * - decoding: unused
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MN
836 */
837 float b_quant_factor;
838
839 /** obsolete FIXME remove */
840 int rc_strategy;
8b4c7dbc 841 int b_frame_strategy;
9dbcbd92 842
b71901e6 843 /**
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844 * hurry up amount.
845 * - encoding: unused
846 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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847 */
848 int hurry_up;
2417652e 849
de6d9b64 850 struct AVCodec *codec;
b71901e6 851
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FB
852 void *priv_data;
853
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MN
854 /* unused, FIXME remove*/
855 int rtp_mode;
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J
856
857 int rtp_payload_size; /* The size of the RTP payload, the coder will */
858 /* do it's best to deliver a chunk with size */
859 /* below rtp_payload_size, the chunk will start */
860 /* with a start code on some codecs like H.263 */
861 /* This doesn't take account of any particular */
862 /* headers inside the transmited RTP payload */
81401c1f
J
863
864
865 /* The RTP callcack: This function is called */
866 /* every time the encoder as a packet to send */
867 /* Depends on the encoder if the data starts */
ebaa7e03
JB
868 /* with a Start Code (it should) H.263 does. */
869 /* mb_nb contains the number of macroblocks */
870 /* encoded in the RTP payload */
871 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 872
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MN
873 /* statistics, used for 2-pass encoding */
874 int mv_bits;
875 int header_bits;
876 int i_tex_bits;
877 int p_tex_bits;
878 int i_count;
879 int p_count;
880 int skip_count;
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MN
881 int misc_bits;
882
883 /**
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MN
884 * number of bits used for the previously encoded frame.
885 * - encoding: set by lavc
7004ffb3 886 * - decoding: unused
b71901e6 887 */
098eefe1 888 int frame_bits;
7004ffb3 889
b71901e6 890 /**
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MN
891 * private data of the user, can be used to carry app specific stuff.
892 * - encoding: set by user
893 * - decoding: set by user
b71901e6
MN
894 */
895 void *opaque;
896
de6d9b64 897 char codec_name[32];
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PG
898 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
899 enum CodecID codec_id; /* see CODEC_ID_xxx */
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MN
900
901 /**
902 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
903 * this is used to workaround some encoder bugs
bd5a6020 904 * - encoding: set by user, if not then the default based on codec_id will be used
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MN
905 * - decoding: set by user, will be converted to upper case by lavc during init
906 */
907 unsigned int codec_tag;
92ba5ffb 908
b71901e6 909 /**
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MN
910 * workaround bugs in encoders which sometimes cannot be detected automatically.
911 * - encoding: unused
912 * - decoding: set by user
b71901e6
MN
913 */
914 int workaround_bugs;
64863965 915#define FF_BUG_AUTODETECT 1 ///< autodetection
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916#define FF_BUG_OLD_MSMPEG4 2
917#define FF_BUG_XVID_ILACE 4
918#define FF_BUG_UMP4 8
919#define FF_BUG_NO_PADDING 16
3116cb14 920#define FF_BUG_AMV 32
ac0c6638 921#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 922#define FF_BUG_QPEL_CHROMA 64
db794953 923#define FF_BUG_STD_QPEL 128
36df8805 924#define FF_BUG_QPEL_CHROMA2 256
c40c3482 925#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 926#define FF_BUG_EDGE 1024
b44bdf7e 927#define FF_BUG_HPEL_CHROMA 2048
4ccde216 928#define FF_BUG_DC_CLIP 4096
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MN
929//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
930
b71901e6 931 /**
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932 * luma single coeff elimination threshold.
933 * - encoding: set by user
934 * - decoding: unused
b71901e6 935 */
1f6b6e50 936 int luma_elim_threshold;
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937
938 /**
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939 * chroma single coeff elimination threshold.
940 * - encoding: set by user
941 * - decoding: unused
b71901e6 942 */
1f6b6e50 943 int chroma_elim_threshold;
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944
945 /**
64863965
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946 * strictly follow the std (MPEG4, ...).
947 * - encoding: set by user
948 * - decoding: unused
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949 */
950 int strict_std_compliance;
951
952 /**
64863965 953 * qscale offset between ip and b frames.
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954 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
955 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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956 * - encoding: set by user.
957 * - decoding: unused
b71901e6
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958 */
959 float b_quant_offset;
960
961 /**
ce3bcaed 962 * error resilience higher values will detect more errors but may missdetect
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963 * some more or less valid parts as errors.
964 * - encoding: unused
965 * - decoding: set by user
b71901e6 966 */
1f6b6e50 967 int error_resilience;
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968#define FF_ER_CAREFULL 1
969#define FF_ER_COMPLIANT 2
970#define FF_ER_AGGRESSIVE 3
971#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 972
6b72ac63 973 /**
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974 * called at the beginning of each frame to get a buffer for it.
975 * if pic.reference is set then the frame will be read later by lavc
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976 * avcodec_align_dimensions() should be used to find the required width and
977 * height, as they normally need to be rounded up to the next multiple of 16
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978 * - encoding: unused
979 * - decoding: set by lavc, user can override
b71901e6 980 */
492cd3a9 981 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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982
983 /**
1e491e29
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984 * called to release buffers which where allocated with get_buffer.
985 * a released buffer can be reused in get_buffer()
986 * pic.data[*] must be set to NULL
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987 * - encoding: unused
988 * - decoding: set by lavc, user can override
b71901e6 989 */
492cd3a9 990 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 991
b71901e6 992 /**
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993 * if 1 the stream has a 1 frame delay during decoding.
994 * - encoding: set by lavc
64863965 995 * - decoding: set by lavc
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996 */
997 int has_b_frames;
b71901e6 998
64863965 999 int block_align; ///< used by some WAV based audio codecs
ce980a95 1000
64863965 1001 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1002 (function avcodec_parse_frame()). The frame
1003 data is returned. Only MPEG codecs support this now. */
ce980a95 1004
b71901e6 1005 /**
e4eadb4b 1006 * 0-> h263 quant 1-> mpeg quant.
64863965
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1007 * - encoding: set by user.
1008 * - decoding: unused
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1009 */
1010 int mpeg_quant;
ce980a95 1011
b71901e6 1012 /**
64863965
MN
1013 * pass1 encoding statistics output buffer.
1014 * - encoding: set by lavc
1015 * - decoding: unused
b71901e6 1016 */
64863965 1017 char *stats_out;
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MN
1018
1019 /**
1020 * pass2 encoding statistics input buffer.
1021 * concatenated stuff from stats_out of pass1 should be placed here
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MN
1022 * - encoding: allocated/set/freed by user
1023 * - decoding: unused
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MN
1024 */
1025 char *stats_in;
1026
1027 /**
64863965 1028 * ratecontrol qmin qmax limiting method.
b71901e6 1029 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
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MN
1030 * - encoding: set by user.
1031 * - decoding: unused
b71901e6 1032 */
ce980a95 1033 float rc_qsquish;
b71901e6 1034
ce980a95
MN
1035 float rc_qmod_amp;
1036 int rc_qmod_freq;
b71901e6
MN
1037
1038 /**
64863965
MN
1039 * ratecontrol override, see RcOverride.
1040 * - encoding: allocated/set/freed by user.
1041 * - decoding: unused
b71901e6 1042 */
ce980a95
MN
1043 RcOverride *rc_override;
1044 int rc_override_count;
b71901e6
MN
1045
1046 /**
64863965
MN
1047 * rate control equation.
1048 * - encoding: set by user
1049 * - decoding: unused
b71901e6 1050 */
ce980a95 1051 char *rc_eq;
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MN
1052
1053 /**
64863965
MN
1054 * maximum bitrate.
1055 * - encoding: set by user.
1056 * - decoding: unused
b71901e6 1057 */
ce980a95 1058 int rc_max_rate;
b71901e6
MN
1059
1060 /**
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MN
1061 * minimum bitrate.
1062 * - encoding: set by user.
1063 * - decoding: unused
b71901e6 1064 */
ce980a95 1065 int rc_min_rate;
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MN
1066
1067 /**
64863965
MN
1068 * decoder bitstream buffer size.
1069 * - encoding: set by user.
1070 * - decoding: unused
b71901e6 1071 */
ce980a95
MN
1072 int rc_buffer_size;
1073 float rc_buffer_aggressivity;
b71901e6
MN
1074
1075 /**
64863965 1076 * qscale factor between p and i frames.
a1e257b2
MN
1077 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1078 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1079 * - encoding: set by user.
1080 * - decoding: unused
b71901e6
MN
1081 */
1082 float i_quant_factor;
1083
1084 /**
64863965 1085 * qscale offset between p and i frames.
64863965
MN
1086 * - encoding: set by user.
1087 * - decoding: unused
b71901e6
MN
1088 */
1089 float i_quant_offset;
1090
1091 /**
64863965
MN
1092 * initial complexity for pass1 ratecontrol.
1093 * - encoding: set by user.
1094 * - decoding: unused
b71901e6 1095 */
ce980a95 1096 float rc_initial_cplx;
917e06c8 1097
b71901e6 1098 /**
64863965
MN
1099 * dct algorithm, see FF_DCT_* below.
1100 * - encoding: set by user
1101 * - decoding: unused
b71901e6 1102 */
28db7fce 1103 int dct_algo;
c7e07931 1104#define FF_DCT_AUTO 0
28db7fce 1105#define FF_DCT_FASTINT 1
c7e07931
MO
1106#define FF_DCT_INT 2
1107#define FF_DCT_MMX 3
1108#define FF_DCT_MLIB 4
05c4072b 1109#define FF_DCT_ALTIVEC 5
65e4c8c9 1110#define FF_DCT_FAAN 6
c5d309f2
MN
1111
1112 /**
64863965
MN
1113 * luminance masking (0-> disabled).
1114 * - encoding: set by user
1115 * - decoding: unused
c5d309f2
MN
1116 */
1117 float lumi_masking;
1118
1119 /**
64863965
MN
1120 * temporary complexity masking (0-> disabled).
1121 * - encoding: set by user
1122 * - decoding: unused
c5d309f2
MN
1123 */
1124 float temporal_cplx_masking;
1125
1126 /**
64863965
MN
1127 * spatial complexity masking (0-> disabled).
1128 * - encoding: set by user
1129 * - decoding: unused
c5d309f2
MN
1130 */
1131 float spatial_cplx_masking;
1132
1133 /**
64863965
MN
1134 * p block masking (0-> disabled).
1135 * - encoding: set by user
1136 * - decoding: unused
c5d309f2
MN
1137 */
1138 float p_masking;
15415af4 1139
5e746b99 1140 /**
64863965
MN
1141 * darkness masking (0-> disabled).
1142 * - encoding: set by user
1143 * - decoding: unused
5e746b99
MN
1144 */
1145 float dark_masking;
0c2dd16e 1146
3a694b04
NK
1147
1148 /* for binary compatibility */
1149 int unused;
1150
0c2dd16e 1151 /**
64863965
MN
1152 * idct algorithm, see FF_IDCT_* below.
1153 * - encoding: set by user
1154 * - decoding: set by user
2ad1516a
MN
1155 */
1156 int idct_algo;
1157#define FF_IDCT_AUTO 0
1158#define FF_IDCT_INT 1
1159#define FF_IDCT_SIMPLE 2
1160#define FF_IDCT_SIMPLEMMX 3
1161#define FF_IDCT_LIBMPEG2MMX 4
1162#define FF_IDCT_PS2 5
1163#define FF_IDCT_MLIB 6
1164#define FF_IDCT_ARM 7
05c4072b 1165#define FF_IDCT_ALTIVEC 8
b82cdc72 1166#define FF_IDCT_SH4 9
bd7d1ea7 1167#define FF_IDCT_SIMPLEARM 10
0fa8158d 1168#define FF_IDCT_H264 11
2ad1516a 1169
144f0625 1170 /**
64863965
MN
1171 * slice count.
1172 * - encoding: set by lavc
1173 * - decoding: set by user (or 0)
144f0625
MN
1174 */
1175 int slice_count;
1176 /**
64863965
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1177 * slice offsets in the frame in bytes.
1178 * - encoding: set/allocated by lavc
1179 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1180 */
1181 int *slice_offset;
1182
4d2858de 1183 /**
64863965
MN
1184 * error concealment flags.
1185 * - encoding: unused
1186 * - decoding: set by user
4d2858de
MN
1187 */
1188 int error_concealment;
1189#define FF_EC_GUESS_MVS 1
1190#define FF_EC_DEBLOCK 2
1191
6b72ac63 1192 /**
bec89a84 1193 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1194 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1195 *
1196 * with FORCE flag you may instead enable given CPU features
1197 * (Dangerous: usable in case of misdetection, improper usage however will
1198 * result into program crash)
1199 */
1200 unsigned dsp_mask;
1201#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1202 /* lower 16 bits - CPU features */
1203#ifdef HAVE_MMX
1204#define FF_MM_MMX 0x0001 /* standard MMX */
1205#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1206#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1207#define FF_MM_SSE 0x0008 /* SSE functions */
1208#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
e42a152b 1209#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1210#endif /* HAVE_MMX */
11f18faf
MN
1211
1212 /**
64863965
MN
1213 * bits per sample/pixel from the demuxer (needed for huffyuv).
1214 * - encoding: set by lavc
1215 * - decoding: set by user
11f18faf
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1216 */
1217 int bits_per_sample;
1218
1219 /**
64863965
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1220 * prediction method (needed for huffyuv).
1221 * - encoding: set by user
1222 * - decoding: unused
11f18faf
MN
1223 */
1224 int prediction_method;
1225#define FF_PRED_LEFT 0
1226#define FF_PRED_PLANE 1
1227#define FF_PRED_MEDIAN 2
5d3cea3a
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1228
1229 /**
5ff85f1d 1230 * sample aspect ratio (0 if unknown).
1f26c6f3 1231 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
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1232 * - encoding: set by user.
1233 * - decoding: set by lavc.
5d3cea3a 1234 */
5ff85f1d 1235 AVRational sample_aspect_ratio;
1e491e29
MN
1236
1237 /**
64863965
MN
1238 * the picture in the bitstream.
1239 * - encoding: set by lavc
1240 * - decoding: set by lavc
1e491e29 1241 */
492cd3a9 1242 AVFrame *coded_frame;
c8c437bc
MN
1243
1244 /**
64863965
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1245 * debug.
1246 * - encoding: set by user.
1247 * - decoding: set by user.
c8c437bc
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1248 */
1249 int debug;
1250#define FF_DEBUG_PICT_INFO 1
1251#define FF_DEBUG_RC 2
1252#define FF_DEBUG_BITSTREAM 4
1253#define FF_DEBUG_MB_TYPE 8
1254#define FF_DEBUG_QP 16
1255#define FF_DEBUG_MV 32
8289c6fa 1256#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1257#define FF_DEBUG_SKIP 0x00000080
1258#define FF_DEBUG_STARTCODE 0x00000100
1259#define FF_DEBUG_PTS 0x00000200
46b4feec 1260#define FF_DEBUG_ER 0x00000400
0da71265 1261#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1262#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1263#define FF_DEBUG_VIS_QP 0x00002000
1264#define FF_DEBUG_VIS_MB_TYPE 0x00004000
140cb663
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1265
1266 /**
0c9bbaec
WH
1267 * debug.
1268 * - encoding: set by user.
1269 * - decoding: set by user.
1270 */
1271 int debug_mv;
1272#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1273#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1274#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1275
1276 /**
64863965
MN
1277 * error.
1278 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1279 * - decoding: unused
140cb663
MN
1280 */
1281 uint64_t error[4];
17a70fde
MN
1282
1283 /**
64863965 1284 * minimum MB quantizer.
6e0d8c06 1285 * - encoding: unused
64863965 1286 * - decoding: unused
17a70fde
MN
1287 */
1288 int mb_qmin;
1289
1290 /**
64863965 1291 * maximum MB quantizer.
6e0d8c06 1292 * - encoding: unused
64863965 1293 * - decoding: unused
17a70fde
MN
1294 */
1295 int mb_qmax;
1457ab52
MN
1296
1297 /**
64863965
MN
1298 * motion estimation compare function.
1299 * - encoding: set by user.
1300 * - decoding: unused
1457ab52
MN
1301 */
1302 int me_cmp;
1303 /**
64863965
MN
1304 * subpixel motion estimation compare function.
1305 * - encoding: set by user.
1306 * - decoding: unused
1457ab52
MN
1307 */
1308 int me_sub_cmp;
1309 /**
64863965
MN
1310 * macroblock compare function (not supported yet).
1311 * - encoding: set by user.
1312 * - decoding: unused
1457ab52
MN
1313 */
1314 int mb_cmp;
622348f9
MN
1315 /**
1316 * interlaced dct compare function
1317 * - encoding: set by user.
1318 * - decoding: unused
1319 */
1320 int ildct_cmp;
1457ab52
MN
1321#define FF_CMP_SAD 0
1322#define FF_CMP_SSE 1
1323#define FF_CMP_SATD 2
1324#define FF_CMP_DCT 3
1325#define FF_CMP_PSNR 4
1326#define FF_CMP_BIT 5
1327#define FF_CMP_RD 6
1328#define FF_CMP_ZERO 7
622348f9
MN
1329#define FF_CMP_VSAD 8
1330#define FF_CMP_VSSE 9
e6a2ac34 1331#define FF_CMP_NSSE 10
26efc54e
MN
1332#define FF_CMP_W53 11
1333#define FF_CMP_W97 12
0fd6aea1 1334#define FF_CMP_DCTMAX 13
1457ab52
MN
1335#define FF_CMP_CHROMA 256
1336
1337 /**
64863965
MN
1338 * ME diamond size & shape.
1339 * - encoding: set by user.
1340 * - decoding: unused
1457ab52
MN
1341 */
1342 int dia_size;
b07a5980
MN
1343
1344 /**
64863965
MN
1345 * amount of previous MV predictors (2a+1 x 2a+1 square).
1346 * - encoding: set by user.
1347 * - decoding: unused
b07a5980
MN
1348 */
1349 int last_predictor_count;
70ac76c0 1350
f5fb6b34 1351 /**
64863965
MN
1352 * pre pass for motion estimation.
1353 * - encoding: set by user.
1354 * - decoding: unused
f5fb6b34
MN
1355 */
1356 int pre_me;
b07a5980 1357
70ac76c0 1358 /**
64863965
MN
1359 * motion estimation pre pass compare function.
1360 * - encoding: set by user.
1361 * - decoding: unused
70ac76c0
MN
1362 */
1363 int me_pre_cmp;
826f429a 1364
70ac76c0 1365 /**
64863965
MN
1366 * ME pre pass diamond size & shape.
1367 * - encoding: set by user.
1368 * - decoding: unused
70ac76c0
MN
1369 */
1370 int pre_dia_size;
1371
826f429a 1372 /**
64863965
MN
1373 * subpel ME quality.
1374 * - encoding: set by user.
1375 * - decoding: unused
826f429a
MN
1376 */
1377 int me_subpel_quality;
1378
a33c7159 1379 /**
64863965 1380 * callback to negotiate the pixelFormat.
a33c7159
MN
1381 * @param fmt is the list of formats which are supported by the codec,
1382 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1383 * the first is allways the native one
1384 * @return the choosen format
64863965
MN
1385 * - encoding: unused
1386 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1387 */
494c56d3 1388 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1389
1390 /**
1391 * DTG active format information (additionnal aspect ratio
1392 * information only used in DVB MPEG2 transport streams). 0 if
1393 * not set.
1394 *
64863965
MN
1395 * - encoding: unused.
1396 * - decoding: set by decoder
e2f9490e
FB
1397 */
1398 int dtg_active_format;
1399#define FF_DTG_AFD_SAME 8
1400#define FF_DTG_AFD_4_3 9
1401#define FF_DTG_AFD_16_9 10
1402#define FF_DTG_AFD_14_9 11
1403#define FF_DTG_AFD_4_3_SP_14_9 13
1404#define FF_DTG_AFD_16_9_SP_14_9 14
1405#define FF_DTG_AFD_SP_4_3 15
1406
ebbcdc9a
MN
1407 /**
1408 * Maximum motion estimation search range in subpel units.
1409 * if 0 then no limit
1410 *
64863965
MN
1411 * - encoding: set by user.
1412 * - decoding: unused.
ebbcdc9a 1413 */
59e0ac8e 1414 int me_range;
ebbcdc9a 1415
65f7062d
MN
1416 /**
1417 * frame_rate_base.
1418 * for variable fps this is 1
1419 * - encoding: set by user.
1420 * - decoding: set by lavc.
1421 * @todo move this after frame_rate
1422 */
65f7062d 1423
1984f635
MN
1424 int frame_rate_base;
1425 /**
1426 * intra quantizer bias.
1427 * - encoding: set by user.
1428 * - decoding: unused
1429 */
1430 int intra_quant_bias;
1431#define FF_DEFAULT_QUANT_BIAS 999999
1432
1433 /**
1434 * inter quantizer bias.
1435 * - encoding: set by user.
1436 * - decoding: unused
1437 */
1438 int inter_quant_bias;
5cd62665
ZK
1439
1440 /**
1441 * color table ID.
1442 * - encoding: unused.
1443 * - decoding: which clrtable should be used for 8bit RGB images
1444 * table have to be stored somewhere FIXME
1445 */
1446 int color_table_id;
1984f635 1447
d90cf87b
MN
1448 /**
1449 * internal_buffer count.
1450 * Dont touch, used by lavc default_get_buffer()
1451 */
1452 int internal_buffer_count;
1453
1454 /**
1455 * internal_buffers.
1456 * Dont touch, used by lavc default_get_buffer()
1457 */
1458 void *internal_buffer;
158c7f05
MN
1459
1460#define FF_LAMBDA_SHIFT 7
1461#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1462#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1463#define FF_LAMBDA_MAX (256*128-1)
1464
1465#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1466 /**
1467 * global quality for codecs which cannot change it per frame.
1468 * this should be proportional to MPEG1/2/4 qscale.
1469 * - encoding: set by user.
1470 * - decoding: unused
1471 */
1472 int global_quality;
11e659c2
MN
1473
1474#define FF_CODER_TYPE_VLC 0
1475#define FF_CODER_TYPE_AC 1
1476 /**
1477 * coder type
1478 * - encoding: set by user.
1479 * - decoding: unused
1480 */
1481 int coder_type;
1482
1483 /**
1484 * context model
1485 * - encoding: set by user.
1486 * - decoding: unused
1487 */
1488 int context_model;
3bb07d61
MN
1489
1490 /**
1491 * slice flags
1492 * - encoding: unused
1493 * - decoding: set by user.
1494 */
1495 int slice_flags;
1496#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1497#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1498#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1499
fb364ada
IK
1500 /**
1501 * XVideo Motion Acceleration
1502 * - encoding: forbidden
1503 * - decoding: set by decoder
1504 */
1505 int xvmc_acceleration;
7d1c3fc1
MN
1506
1507 /**
1508 * macroblock decision mode
1509 * - encoding: set by user.
1510 * - decoding: unused
1511 */
1512 int mb_decision;
1513#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1514#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1515#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1516
1517 /**
1518 * custom intra quantization matrix
1519 * - encoding: set by user, can be NULL
1520 * - decoding: set by lavc
1521 */
1522 uint16_t *intra_matrix;
1523
1524 /**
1525 * custom inter quantization matrix
1526 * - encoding: set by user, can be NULL
1527 * - decoding: set by lavc
1528 */
1529 uint16_t *inter_matrix;
7d1c3fc1 1530
541ae140
MN
1531 /**
1532 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1533 * this is used to workaround some encoder bugs
1534 * - encoding: unused
1535 * - decoding: set by user, will be converted to upper case by lavc during init
1536 */
1537 unsigned int stream_codec_tag;
05fbd0a2
MN
1538
1539 /**
1540 * scene change detection threshold.
1541 * 0 is default, larger means fewer detected scene changes
1542 * - encoding: set by user.
1543 * - decoding: unused
1544 */
1545 int scenechange_threshold;
158c7f05
MN
1546
1547 /**
1548 * minimum lagrange multipler
1549 * - encoding: set by user.
1550 * - decoding: unused
1551 */
1552 int lmin;
1553
1554 /**
1555 * maximum lagrange multipler
1556 * - encoding: set by user.
1557 * - decoding: unused
1558 */
1559 int lmax;
2a2bbcb0
MM
1560
1561 /**
1562 * Palette control structure
1563 * - encoding: ??? (no palette-enabled encoder yet)
1564 * - decoding: set by user.
1565 */
1566 struct AVPaletteControl *palctrl;
821cb11f
MN
1567
1568 /**
1569 * noise reduction strength
1570 * - encoding: set by user.
1571 * - decoding: unused
1572 */
1573 int noise_reduction;
fa384dcc 1574
074c4ca7 1575 /**
e1c2a5a0
RT
1576 * called at the beginning of a frame to get cr buffer for it.
1577 * buffer type (size, hints) must be the same. lavc won't check it.
1578 * lavc will pass previous buffer in pic, function should return
1579 * same buffer or new buffer with old frame "painted" into it.
1580 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1581 * - encoding: unused
e1c2a5a0 1582 * - decoding: set by lavc, user can override
074c4ca7 1583 */
e1c2a5a0 1584 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1585
1586 /**
1587 * number of bits which should be loaded into the rc buffer before decoding starts
1588 * - encoding: set by user.
1589 * - decoding: unused
1590 */
1591 int rc_initial_buffer_occupancy;
1592
1593 /**
1594 *
1595 * - encoding: set by user.
1596 * - decoding: unused
1597 */
1598 int inter_threshold;
1599
1600 /**
1601 * CODEC_FLAG2_*.
1602 * - encoding: set by user.
1603 * - decoding: set by user.
1604 */
1605 int flags2;
7ebfc0ea
MN
1606
1607 /**
1608 * simulates errors in the bitstream to test error concealment.
1609 * - encoding: set by user.
1610 * - decoding: unused.
1611 */
1612 int error_rate;
a1e257b2
MN
1613
1614 /**
1615 * MP3 antialias algorithm, see FF_AA_* below.
1616 * - encoding: unused
1617 * - decoding: set by user
1618 */
1619 int antialias_algo;
1620#define FF_AA_AUTO 0
1621#define FF_AA_FASTINT 1 //not implemented yet
1622#define FF_AA_INT 2
1623#define FF_AA_FLOAT 3
77ea0d4b
MN
1624 /**
1625 * Quantizer noise shaping.
1626 * - encoding: set by user
1627 * - decoding: unused
1628 */
1629 int quantizer_noise_shaping;
9c3d33d6
MN
1630
1631 /**
1632 * Thread count.
1633 * is used to decide how many independant tasks should be passed to execute()
1634 * - encoding: set by user
1635 * - decoding: set by user
1636 */
1637 int thread_count;
1638
1639 /**
1640 * the codec may call this to execute several independant things. it will return only after
1641 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1642 * default implementation will execute the parts serially
399cec2f 1643 * @param count the number of things to execute
9c3d33d6
MN
1644 * - encoding: set by lavc, user can override
1645 * - decoding: set by lavc, user can override
1646 */
1647 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1648
1649 /**
1650 * Thread opaque.
1651 * can be used by execute() to store some per AVCodecContext stuff.
1652 * - encoding: set by execute()
1653 * - decoding: set by execute()
1654 */
1655 void *thread_opaque;
a4d36c11
MN
1656
1657 /**
f20f8a8b
MN
1658 * Motion estimation threshold. under which no motion estimation is
1659 * performed, but instead the user specified motion vectors are used
a4d36c11
MN
1660 *
1661 * - encoding: set by user
f20f8a8b 1662 * - decoding: unused
a4d36c11 1663 */
2750b827 1664 int me_threshold;
f20f8a8b
MN
1665
1666 /**
1667 * Macroblock threshold. under which the user specified macroblock types will be used
1668 * - encoding: set by user
1669 * - decoding: unused
1670 */
1671 int mb_threshold;
bf266e19
MN
1672
1673 /**
d4c5d2ad 1674 * precision of the intra dc coefficient - 8.
bf266e19
MN
1675 * - encoding: set by user
1676 * - decoding: unused
1677 */
1678 int intra_dc_precision;
d4c5d2ad
MN
1679
1680 /**
1681 * noise vs. sse weight for the nsse comparsion function.
1682 * - encoding: set by user
1683 * - decoding: unused
1684 */
1685 int nsse_weight;
0dfd33c3
MN
1686
1687 /**
1688 * number of macroblock rows at the top which are skiped.
1689 * - encoding: unused
1690 * - decoding: set by user
1691 */
1692 int skip_top;
1693
1694 /**
1695 * number of macroblock rows at the bottom which are skiped.
1696 * - encoding: unused
1697 * - decoding: set by user
1698 */
1699 int skip_bottom;
baced9f5
MN
1700
1701 /**
1702 * profile
1703 * - encoding: set by user
1704 * - decoding: set by lavc
1705 */
1706 int profile;
1707#define FF_PROFILE_UNKNOWN -99
1708
1709 /**
1710 * level
1711 * - encoding: set by user
1712 * - decoding: set by lavc
1713 */
1714 int level;
1715#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1716
1717 /**
1718 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1719 * - encoding: unused
1720 * - decoding: set by user
1721 */
1722 int lowres;
21adafec
MN
1723
1724 /**
bbf18b21 1725 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1726 * or other things are used
1727 * - encoding: unused
1728 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1729 */
1730 int coded_width, coded_height;
bbf18b21
MN
1731
1732 /**
1733 * frame skip threshold
1734 * - encoding: set by user
1735 * - decoding: unused
1736 */
1737 int frame_skip_threshold;
1738
1739 /**
1740 * frame skip factor
1741 * - encoding: set by user
1742 * - decoding: unused
1743 */
1744 int frame_skip_factor;
0fd6aea1
MN
1745
1746 /**
1747 * frame skip exponent
1748 * - encoding: set by user
1749 * - decoding: unused
1750 */
1751 int frame_skip_exp;
1752
1753 /**
1754 * frame skip comparission function
1755 * - encoding: set by user.
1756 * - decoding: unused
1757 */
1758 int frame_skip_cmp;
957c743a
CM
1759
1760 /**
1761 * border processing masking. raises the quantizer for mbs on the borders
1762 * of the picture.
1763 * - encoding: set by user
1764 * - decoding: unused
1765 */
1766 float border_masking;
6e0d8c06
MN
1767
1768 /**
1769 * minimum MB lagrange multipler.
1770 * - encoding: set by user.
1771 * - decoding: unused
1772 */
1773 int mb_lmin;
1774
1775 /**
1776 * maximum MB lagrange multipler.
1777 * - encoding: set by user.
1778 * - decoding: unused
1779 */
1780 int mb_lmax;
de6d9b64
FB
1781} AVCodecContext;
1782
97d96aaa 1783
64863965
MN
1784/**
1785 * AVOption.
1786 */
97d96aaa
ZK
1787typedef struct AVOption {
1788 /** options' name */
1789 const char *name; /* if name is NULL, it indicates a link to next */
bec89a84
ZK
1790 /** short English text help or const struct AVOption* subpointer */
1791 const char *help; // const struct AVOption* sub;
97d96aaa
ZK
1792 /** offset to context structure where the parsed value should be stored */
1793 int offset;
1794 /** options' type */
1795 int type;
64863965
MN
1796#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1797#define FF_OPT_TYPE_DOUBLE 2 ///< double
1798#define FF_OPT_TYPE_INT 3 ///< integer
1799#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1800#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
97d96aaa
ZK
1801//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1802#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1803#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1804 /** min value (min == max -> no limits) */
1805 double min;
1806 /** maximum value for double/int */
1807 double max;
1808 /** default boo [0,1]l/double/int value */
1809 double defval;
1810 /**
1811 * default string value (with optional semicolon delimited extra option-list
1812 * i.e. option1;option2;option3
1813 * defval might select other then first argument as default
1814 */
1815 const char *defstr;
97d96aaa
ZK
1816#define FF_OPT_MAX_DEPTH 10
1817} AVOption;
1818
64863965 1819/**
bec89a84
ZK
1820 * Parse option(s) and sets fields in passed structure
1821 * @param strct structure where the parsed results will be written
1822 * @param list list with AVOptions
1823 * @param opts string with options for parsing
1824 */
1825int avoption_parse(void* strct, const AVOption* list, const char* opts);
1826
1827
1828/**
64863965
MN
1829 * AVCodec.
1830 */
de6d9b64 1831typedef struct AVCodec {
18f77016 1832 const char *name;
5d234974 1833 enum CodecType type;
9297ddd3 1834 enum CodecID id;
de6d9b64
FB
1835 int priv_data_size;
1836 int (*init)(AVCodecContext *);
0c1a9eda 1837 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1838 int (*close)(AVCodecContext *);
0fd90455 1839 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1840 uint8_t *buf, int buf_size);
bf89e6b1 1841 int capabilities;
97d96aaa 1842 const AVOption *options;
de6d9b64 1843 struct AVCodec *next;
7a06ff14 1844 void (*flush)(AVCodecContext *);
b0df362b 1845 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1846 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1847} AVCodec;
1848
97d96aaa 1849/**
d7425f59
MN
1850 * four components are given, that's all.
1851 * the last component is alpha
1852 */
de6d9b64 1853typedef struct AVPicture {
0c1a9eda 1854 uint8_t *data[4];
cd394651 1855 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1856} AVPicture;
1857
ba118447
MM
1858/**
1859 * AVPaletteControl
1860 * This structure defines a method for communicating palette changes
1861 * between and demuxer and a decoder.
1862 */
2e99641b 1863#define AVPALETTE_SIZE 1024
432d84c3 1864#define AVPALETTE_COUNT 256
ba118447
MM
1865typedef struct AVPaletteControl {
1866
1867 /* demuxer sets this to 1 to indicate the palette has changed;
1868 * decoder resets to 0 */
1869 int palette_changed;
1870
2a2bbcb0
MM
1871 /* 4-byte ARGB palette entries, stored in native byte order; note that
1872 * the individual palette components should be on a 8-bit scale; if
1873 * the palette data comes from a IBM VGA native format, the component
1874 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1875 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1876
1877} AVPaletteControl;
1878
de6d9b64
FB
1879extern AVCodec ac3_encoder;
1880extern AVCodec mp2_encoder;
9d36bdc9 1881extern AVCodec mp3lame_encoder;
81e0d0b4 1882extern AVCodec oggvorbis_encoder;
5c5dea3f 1883extern AVCodec oggtheora_encoder;
29d48296 1884extern AVCodec faac_encoder;
1ddadfa9 1885extern AVCodec xvid_encoder;
de6d9b64 1886extern AVCodec mpeg1video_encoder;
029911d1 1887extern AVCodec mpeg2video_encoder;
1c3990db 1888extern AVCodec h261_encoder;
de6d9b64
FB
1889extern AVCodec h263_encoder;
1890extern AVCodec h263p_encoder;
d4f5d74a 1891extern AVCodec flv_encoder;
de6d9b64 1892extern AVCodec rv10_encoder;
68b94c35 1893extern AVCodec rv20_encoder;
6faa4645 1894extern AVCodec dvvideo_encoder;
de6d9b64 1895extern AVCodec mjpeg_encoder;
b1e6b355 1896extern AVCodec ljpeg_encoder;
4eff7cf4 1897extern AVCodec png_encoder;
5b6d5596
MN
1898extern AVCodec ppm_encoder;
1899extern AVCodec pgm_encoder;
1900extern AVCodec pgmyuv_encoder;
1901extern AVCodec pbm_encoder;
1902extern AVCodec pam_encoder;
bf89e6b1 1903extern AVCodec mpeg4_encoder;
84afee34
MN
1904extern AVCodec msmpeg4v1_encoder;
1905extern AVCodec msmpeg4v2_encoder;
1906extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1907extern AVCodec wmv1_encoder;
1908extern AVCodec wmv2_encoder;
11f18faf 1909extern AVCodec huffyuv_encoder;
f37b9768 1910extern AVCodec ffvhuff_encoder;
0da71265 1911extern AVCodec h264_encoder;
3d2e8cce 1912extern AVCodec asv1_encoder;
9b56edf5 1913extern AVCodec asv2_encoder;
be3564ed 1914extern AVCodec vcr1_encoder;
5e20f836 1915extern AVCodec ffv1_encoder;
791e7b83 1916extern AVCodec snow_encoder;
c3bf0288 1917extern AVCodec mdec_encoder;
a273bbfb 1918extern AVCodec zlib_encoder;
54f5fd22
AB
1919extern AVCodec sonic_encoder;
1920extern AVCodec sonic_ls_encoder;
3b64893d 1921extern AVCodec svq1_encoder;
de6d9b64
FB
1922
1923extern AVCodec h263_decoder;
c6148de2 1924extern AVCodec h261_decoder;
bf89e6b1 1925extern AVCodec mpeg4_decoder;
84afee34
MN
1926extern AVCodec msmpeg4v1_decoder;
1927extern AVCodec msmpeg4v2_decoder;
1928extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1929extern AVCodec wmv1_decoder;
0151a6f5 1930extern AVCodec wmv2_decoder;
21aa398f
AB
1931extern AVCodec vc9_decoder;
1932extern AVCodec wmv3_decoder;
922bc38d
MN
1933extern AVCodec mpeg1video_decoder;
1934extern AVCodec mpeg2video_decoder;
c512b303 1935extern AVCodec mpegvideo_decoder;
fb364ada 1936extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1937extern AVCodec h263i_decoder;
d4f5d74a 1938extern AVCodec flv_decoder;
de6d9b64 1939extern AVCodec rv10_decoder;
68b94c35 1940extern AVCodec rv20_decoder;
3f05305d
MN
1941extern AVCodec rv30_decoder;
1942extern AVCodec rv40_decoder;
be8ffec9 1943extern AVCodec svq1_decoder;
8b82a956 1944extern AVCodec svq3_decoder;
020fcc94 1945extern AVCodec dvvideo_decoder;
bc8d1857
FB
1946extern AVCodec wmav1_decoder;
1947extern AVCodec wmav2_decoder;
4e66ab3b 1948extern AVCodec mjpeg_decoder;
b135d9fb 1949extern AVCodec mjpegb_decoder;
5e83dec4 1950extern AVCodec sp5x_decoder;
4eff7cf4 1951extern AVCodec png_decoder;
4b1f4f23 1952extern AVCodec mp2_decoder;
a96b68b7 1953extern AVCodec mp3_decoder;
1ede228a 1954extern AVCodec mp3adu_decoder;
d2a7718d 1955extern AVCodec mp3on4_decoder;
3f95e843
FR
1956extern AVCodec mace3_decoder;
1957extern AVCodec mace6_decoder;
11f18faf 1958extern AVCodec huffyuv_decoder;
f37b9768 1959extern AVCodec ffvhuff_decoder;
3aca208a 1960extern AVCodec oggvorbis_decoder;
5c5dea3f 1961extern AVCodec oggtheora_decoder;
f70f7c6d 1962extern AVCodec cyuv_decoder;
0da71265 1963extern AVCodec h264_decoder;
deabd4fd 1964extern AVCodec indeo3_decoder;
d86053a4 1965extern AVCodec vp3_decoder;
f44ee2c3 1966extern AVCodec theora_decoder;
891f64b3 1967extern AVCodec amr_nb_decoder;
bc634f6f 1968extern AVCodec amr_nb_encoder;
d663a1fd
MN
1969extern AVCodec amr_wb_encoder;
1970extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1971extern AVCodec aac_decoder;
1972extern AVCodec mpeg4aac_decoder;
3d2e8cce 1973extern AVCodec asv1_decoder;
9b56edf5 1974extern AVCodec asv2_decoder;
be3564ed 1975extern AVCodec vcr1_decoder;
3aff069b 1976extern AVCodec cljr_decoder;
5e20f836 1977extern AVCodec ffv1_decoder;
791e7b83 1978extern AVCodec snow_decoder;
8809cfee 1979extern AVCodec fourxm_decoder;
c3bf0288 1980extern AVCodec mdec_decoder;
3ef8be2b
MM
1981extern AVCodec roq_decoder;
1982extern AVCodec interplay_video_decoder;
9937e686 1983extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1984extern AVCodec rpza_decoder;
1985extern AVCodec cinepak_decoder;
1986extern AVCodec msrle_decoder;
1987extern AVCodec msvideo1_decoder;
6955a882 1988extern AVCodec vqa_decoder;
4120a53a 1989extern AVCodec idcin_decoder;
1dc1ed99 1990extern AVCodec eightbps_decoder;
11e29a41 1991extern AVCodec smc_decoder;
42cad81a 1992extern AVCodec flic_decoder;
fafa0b75
MM
1993extern AVCodec vmdvideo_decoder;
1994extern AVCodec vmdaudio_decoder;
9a4117d5 1995extern AVCodec truemotion1_decoder;
a273bbfb
RT
1996extern AVCodec mszh_decoder;
1997extern AVCodec zlib_decoder;
b8414bbd
NK
1998extern AVCodec ra_144_decoder;
1999extern AVCodec ra_288_decoder;
3ef8be2b
MM
2000extern AVCodec roq_dpcm_decoder;
2001extern AVCodec interplay_dpcm_decoder;
9937e686 2002extern AVCodec xan_dpcm_decoder;
d08d7142 2003extern AVCodec sol_dpcm_decoder;
54f5fd22 2004extern AVCodec sonic_decoder;
070ed1bc 2005extern AVCodec qtrle_decoder;
ac2570a8 2006extern AVCodec flac_decoder;
9d53d58e 2007extern AVCodec tscc_decoder;
d0a0bbd2 2008extern AVCodec ulti_decoder;
d08d7142 2009extern AVCodec qdraw_decoder;
ab711b3c 2010extern AVCodec xl_decoder;
acfd8f0f 2011extern AVCodec qpeg_decoder;
85ad5695 2012extern AVCodec shorten_decoder;
9c7fb608 2013extern AVCodec loco_decoder;
de6d9b64 2014
a96b68b7
FB
2015/* pcm codecs */
2016#define PCM_CODEC(id, name) \
2017extern AVCodec name ## _decoder; \
f11d3f23 2018extern AVCodec name ## _encoder
a96b68b7
FB
2019
2020PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2021PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2022PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2023PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2024PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2025PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2026PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2027PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2028
0147f198
FR
2029/* adpcm codecs */
2030
2031PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2032PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
2033PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2034PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 2035PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 2036PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 2037PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 2038PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
2039PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2040PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 2041PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 2042PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
b3bfb299 2043PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
659c3692 2044PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
0147f198 2045
a96b68b7
FB
2046#undef PCM_CODEC
2047
2048/* dummy raw video codec */
63167088
RS
2049extern AVCodec rawvideo_encoder;
2050extern AVCodec rawvideo_decoder;
de6d9b64
FB
2051
2052/* the following codecs use external GPL libs */
de6d9b64 2053extern AVCodec ac3_decoder;
23c99253 2054extern AVCodec dts_decoder;
de6d9b64
FB
2055
2056/* resample.c */
2057
2058struct ReSampleContext;
aaaf1635 2059struct AVResampleContext;
de6d9b64
FB
2060
2061typedef struct ReSampleContext ReSampleContext;
2062
2063ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2064 int output_rate, int input_rate);
2065int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2066void audio_resample_close(ReSampleContext *s);
2067
6e225de2 2068struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
aaaf1635 2069int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 2070void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 2071void av_resample_close(struct AVResampleContext *c);
aaaf1635 2072
de6d9b64
FB
2073/* YUV420 format is assumed ! */
2074
2075struct ImgReSampleContext;
2076
2077typedef struct ImgReSampleContext ImgReSampleContext;
2078
2079ImgReSampleContext *img_resample_init(int output_width, int output_height,
2080 int input_width, int input_height);
ab6d194a
MN
2081
2082ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2083 int iwidth, int iheight,
2084 int topBand, int bottomBand,
1ff93ffc
TK
2085 int leftBand, int rightBand,
2086 int padtop, int padbottom,
2087 int padleft, int padright);
2088
ab6d194a 2089
de6d9b64 2090void img_resample(ImgReSampleContext *s,
da64ecc3 2091 AVPicture *output, const AVPicture *input);
de6d9b64
FB
2092
2093void img_resample_close(ImgReSampleContext *s);
2094
75917b88
DH
2095/**
2096 * Allocate memory for a picture. Call avpicture_free to free it.
2097 *
2098 * @param picture the picture to be filled in.
2099 * @param pix_fmt the format of the picture.
2100 * @param width the width of the picture.
2101 * @param height the height of the picture.
2102 * @return 0 if successful, -1 if not.
2103 */
2104int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2105
2106/* Free a picture previously allocated by avpicture_alloc. */
2107void avpicture_free(AVPicture *picture);
2108
0c1a9eda 2109int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 2110 int pix_fmt, int width, int height);
da64ecc3 2111int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 2112 unsigned char *dest, int dest_size);
219b06c6 2113int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
2114void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2115const char *avcodec_get_pix_fmt_name(int pix_fmt);
21adafec 2116void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
63167088 2117enum PixelFormat avcodec_get_pix_fmt(const char* name);
d07730dd 2118unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
219b06c6 2119
fab21997
FB
2120#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
2121#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
2122#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
2123#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
2124#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
2125#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2126
2127int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2128 int has_alpha);
2129int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2130 int has_alpha, int *loss_ptr);
2131
0469baf1
FB
2132#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
2133#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
2134int img_get_alpha_info(const AVPicture *src,
2135 int pix_fmt, int width, int height);
0469baf1 2136
219b06c6
FB
2137/* convert among pixel formats */
2138int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 2139 const AVPicture *src, int pix_fmt,
219b06c6
FB
2140 int width, int height);
2141
2142/* deinterlace a picture */
da64ecc3 2143int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2144 int pix_fmt, int width, int height);
2145
2146/* external high level API */
2147
2148extern AVCodec *first_avcodec;
2149
156e5023 2150/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 2151unsigned avcodec_version(void);
8bceb6af 2152/* returns LIBAVCODEC_BUILD constant */
51a49663 2153unsigned avcodec_build(void);
de6d9b64
FB
2154void avcodec_init(void);
2155
2156void register_avcodec(AVCodec *format);
2157AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 2158AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
2159AVCodec *avcodec_find_decoder(enum CodecID id);
2160AVCodec *avcodec_find_decoder_by_name(const char *name);
2161void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2162
1e491e29 2163void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 2164AVCodecContext *avcodec_alloc_context(void);
7906085f 2165void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 2166AVFrame *avcodec_alloc_frame(void);
1e491e29 2167
492cd3a9
MN
2168int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2169void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
2170int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2171void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
0ecca7a4 2172int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
3a569751 2173enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 2174
5a815088
MN
2175int avcodec_thread_init(AVCodecContext *s, int thread_count);
2176void avcodec_thread_free(AVCodecContext *s);
2177int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 2178int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
2179//FIXME func typedef
2180
7a06ff14
MN
2181/**
2182 * opens / inits the AVCodecContext.
2183 * not thread save!
2184 */
de6d9b64 2185int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 2186
0c1a9eda 2187int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2188 int *frame_size_ptr,
0c1a9eda 2189 uint8_t *buf, int buf_size);
492cd3a9 2190int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2191 int *got_picture_ptr,
0c1a9eda
ZK
2192 uint8_t *buf, int buf_size);
2193int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2194 int *data_size_ptr,
0c1a9eda
ZK
2195 uint8_t *buf, int buf_size);
2196int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2197 const short *samples);
0c1a9eda 2198int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2199 const AVFrame *pict);
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FB
2200
2201int avcodec_close(AVCodecContext *avctx);
2202
2203void avcodec_register_all(void);
a96b68b7 2204
1c2a8c7f
MN
2205void avcodec_flush_buffers(AVCodecContext *avctx);
2206
88730be6
MR
2207void avcodec_default_free_buffers(AVCodecContext *s);
2208
14bea432 2209/* misc usefull functions */
d8085ea7
MN
2210
2211/**
2212 * returns a single letter to describe the picture type
2213 */
2214char av_get_pict_type_char(int pict_type);
2215
14bea432
MN
2216/**
2217 * reduce a fraction.
2218 * this is usefull for framerate calculations
2219 * @param max the maximum allowed for dst_nom & dst_den
2220 * @return 1 if exact, 0 otherwise
2221 */
2222int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2223
2224/**
1f018225 2225 * rescale a 64bit integer with rounding to nearest.
14bea432
MN
2226 * a simple a*b/c isnt possible as it can overflow
2227 */
4c263142 2228int64_t av_rescale(int64_t a, int64_t b, int64_t c);
628d601b 2229
1f018225
MN
2230/**
2231 * rescale a 64bit integer with specified rounding.
2232 * a simple a*b/c isnt possible as it can overflow
2233 */
2234int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
628d601b 2235
8424cf50
FB
2236/* frame parsing */
2237typedef struct AVCodecParserContext {
2238 void *priv_data;
2239 struct AVCodecParser *parser;
2240 int64_t frame_offset; /* offset of the current frame */
2241 int64_t cur_offset; /* current offset
2242 (incremented by each av_parser_parse()) */
2243 int64_t last_frame_offset; /* offset of the last frame */
2244 /* video info */
2245 int pict_type; /* XXX: put it back in AVCodecContext */
2246 int repeat_pict; /* XXX: put it back in AVCodecContext */
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FB
2247 int64_t pts; /* pts of the current frame */
2248 int64_t dts; /* dts of the current frame */
2249
2250 /* private data */
2251 int64_t last_pts;
2252 int64_t last_dts;
a62aecce 2253 int fetch_timestamp;
b84f2a35
FB
2254
2255#define AV_PARSER_PTS_NB 4
2256 int cur_frame_start_index;
2257 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2258 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2259 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
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FB
2260} AVCodecParserContext;
2261
2262typedef struct AVCodecParser {
99f06236 2263 int codec_ids[5]; /* several codec IDs are permitted */
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FB
2264 int priv_data_size;
2265 int (*parser_init)(AVCodecParserContext *s);
2266 int (*parser_parse)(AVCodecParserContext *s,
2267 AVCodecContext *avctx,
2268 uint8_t **poutbuf, int *poutbuf_size,
2269 const uint8_t *buf, int buf_size);
2270 void (*parser_close)(AVCodecParserContext *s);
2271 struct AVCodecParser *next;
2272} AVCodecParser;
2273
2274extern AVCodecParser *av_first_parser;
2275
2276void av_register_codec_parser(AVCodecParser *parser);
2277AVCodecParserContext *av_parser_init(int codec_id);
2278int av_parser_parse(AVCodecParserContext *s,
2279 AVCodecContext *avctx,
2280 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2281 const uint8_t *buf, int buf_size,
2282 int64_t pts, int64_t dts);
8424cf50
FB
2283void av_parser_close(AVCodecParserContext *s);
2284
2285extern AVCodecParser mpegvideo_parser;
2286extern AVCodecParser mpeg4video_parser;
c6148de2 2287extern AVCodecParser h261_parser;
8424cf50
FB
2288extern AVCodecParser h263_parser;
2289extern AVCodecParser h264_parser;
8e6325b9 2290extern AVCodecParser mjpeg_parser;
99f06236 2291extern AVCodecParser pnm_parser;
8424cf50
FB
2292extern AVCodecParser mpegaudio_parser;
2293extern AVCodecParser ac3_parser;
2294
544eb99c 2295/* memory */
e4eadb4b 2296void *av_malloc(unsigned int size);
18f77016 2297void *av_mallocz(unsigned int size);
8e1e6f31 2298void *av_realloc(void *ptr, unsigned int size);
544eb99c 2299void av_free(void *ptr);
8e1e6f31 2300char *av_strdup(const char *s);
81c5f887 2301void av_freep(void *ptr);
97d96aaa 2302void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
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2303/* for static data only */
2304/* call av_free_static to release all staticaly allocated tables */
628d601b 2305void av_free_static(void);
8d1f2ba5 2306void *av_mallocz_static(unsigned int size);
073c2593 2307void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2308
fc384777
MM
2309/* add by bero : in adx.c */
2310int is_adx(const unsigned char *buf,size_t bufsize);
2311
e1c2a5a0
RT
2312void img_copy(AVPicture *dst, const AVPicture *src,
2313 int pix_fmt, int width, int height);
2314
9b879566
MB
2315/* av_log API */
2316
2317#include <stdarg.h>
2318
d8019eb5 2319#define AV_LOG_QUIET -1
9b879566
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2320#define AV_LOG_ERROR 0
2321#define AV_LOG_INFO 1
2322#define AV_LOG_DEBUG 2
2323
f4bd8cf0 2324#ifdef __GNUC__
bc874dae 2325extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2326#else
2327extern void av_log(void*, int level, const char *fmt, ...);
2328#endif
2329
bc874dae 2330extern void av_vlog(void*, int level, const char *fmt, va_list);
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2331extern int av_log_get_level(void);
2332extern void av_log_set_level(int);
bc874dae 2333extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2334
3a278992 2335/* endian macros */
e96682e6 2336#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2337#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2338#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2339 (((uint8_t*)(x))[1] << 16) | \
2340 (((uint8_t*)(x))[2] << 8) | \
2341 ((uint8_t*)(x))[3])
2342#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2343#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2344 (((uint8_t*)(x))[2] << 16) | \
2345 (((uint8_t*)(x))[1] << 8) | \
2346 ((uint8_t*)(x))[0])
e96682e6 2347#endif
3a278992 2348
02d697aa
ZK
2349#ifdef __cplusplus
2350}
2351#endif
2352
a96b68b7 2353#endif /* AVCODEC_H */