adpcm_ima & adpcm_yamaha: improved quantization
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
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7 */
8
9
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10#ifdef __cplusplus
11extern "C" {
12#endif
13
c11c2bc2 14#include "avutil.h"
4b813d5c 15#include <sys/types.h> /* size_t */
de6d9b64 16
5aa083ee 17//FIXME the following 2 really dont belong in here
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18#define FFMPEG_VERSION_INT 0x000409
19#define FFMPEG_VERSION "CVS"
7b7d86f1 20
bb270c08 21#define AV_STRINGIFY(s) AV_TOSTRING(s)
7b7d86f1 22#define AV_TOSTRING(s) #s
5aa083ee 23
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24#define LIBAVCODEC_VERSION_INT ((51<<16)+(9<<8)+0)
25#define LIBAVCODEC_VERSION 51.9.0
bb270c08 26#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
5aa083ee 27
bb270c08 28#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
ce2749d2 29
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30#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
31#define AV_TIME_BASE 1000000
32#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
9740beff 33
de6d9b64 34enum CodecID {
115329f1 35 CODEC_ID_NONE,
de6d9b64 36 CODEC_ID_MPEG1VIDEO,
dcedf586 37 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 38 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 39 CODEC_ID_H261,
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40 CODEC_ID_H263,
41 CODEC_ID_RV10,
68b94c35 42 CODEC_ID_RV20,
de6d9b64 43 CODEC_ID_MJPEG,
b135d9fb 44 CODEC_ID_MJPEGB,
b1e6b355 45 CODEC_ID_LJPEG,
5e83dec4 46 CODEC_ID_SP5X,
5639729b 47 CODEC_ID_JPEGLS,
bf89e6b1 48 CODEC_ID_MPEG4,
de6d9b64 49 CODEC_ID_RAWVIDEO,
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50 CODEC_ID_MSMPEG4V1,
51 CODEC_ID_MSMPEG4V2,
52 CODEC_ID_MSMPEG4V3,
e1a9dbff 53 CODEC_ID_WMV1,
b50eef3a 54 CODEC_ID_WMV2,
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55 CODEC_ID_H263P,
56 CODEC_ID_H263I,
d4f5d74a 57 CODEC_ID_FLV1,
be8ffec9 58 CODEC_ID_SVQ1,
8b82a956 59 CODEC_ID_SVQ3,
020fcc94 60 CODEC_ID_DVVIDEO,
11f18faf 61 CODEC_ID_HUFFYUV,
f70f7c6d 62 CODEC_ID_CYUV,
0da71265 63 CODEC_ID_H264,
deabd4fd 64 CODEC_ID_INDEO3,
d86053a4 65 CODEC_ID_VP3,
f44ee2c3 66 CODEC_ID_THEORA,
3d2e8cce 67 CODEC_ID_ASV1,
9b56edf5 68 CODEC_ID_ASV2,
5e20f836 69 CODEC_ID_FFV1,
e2a7bb28 70 CODEC_ID_4XM,
be3564ed 71 CODEC_ID_VCR1,
3aff069b 72 CODEC_ID_CLJR,
c3bf0288 73 CODEC_ID_MDEC,
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74 CODEC_ID_ROQ,
75 CODEC_ID_INTERPLAY_VIDEO,
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76 CODEC_ID_XAN_WC3,
77 CODEC_ID_XAN_WC4,
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78 CODEC_ID_RPZA,
79 CODEC_ID_CINEPAK,
80 CODEC_ID_WS_VQA,
81 CODEC_ID_MSRLE,
82 CODEC_ID_MSVIDEO1,
4120a53a 83 CODEC_ID_IDCIN,
1dc1ed99 84 CODEC_ID_8BPS,
11e29a41 85 CODEC_ID_SMC,
42cad81a 86 CODEC_ID_FLIC,
9a4117d5 87 CODEC_ID_TRUEMOTION1,
fafa0b75 88 CODEC_ID_VMDVIDEO,
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89 CODEC_ID_MSZH,
90 CODEC_ID_ZLIB,
070ed1bc 91 CODEC_ID_QTRLE,
791e7b83 92 CODEC_ID_SNOW,
9d53d58e 93 CODEC_ID_TSCC,
d0a0bbd2 94 CODEC_ID_ULTI,
d08d7142 95 CODEC_ID_QDRAW,
ab711b3c 96 CODEC_ID_VIXL,
acfd8f0f 97 CODEC_ID_QPEG,
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98 CODEC_ID_XVID,
99 CODEC_ID_PNG,
100 CODEC_ID_PPM,
101 CODEC_ID_PBM,
102 CODEC_ID_PGM,
103 CODEC_ID_PGMYUV,
104 CODEC_ID_PAM,
f37b9768 105 CODEC_ID_FFVHUFF,
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106 CODEC_ID_RV30,
107 CODEC_ID_RV40,
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108 CODEC_ID_VC9,
109 CODEC_ID_WMV3,
9c7fb608 110 CODEC_ID_LOCO,
a8a15e9d 111 CODEC_ID_WNV1,
589f8220 112 CODEC_ID_AASC,
856dbbff 113 CODEC_ID_INDEO2,
b81f8949 114 CODEC_ID_FRAPS,
64af6168 115 CODEC_ID_TRUEMOTION2,
9fa62f2a 116 CODEC_ID_BMP,
e0f80bd7 117 CODEC_ID_CSCD,
4e114829 118 CODEC_ID_MMVIDEO,
9c8d8e84 119 CODEC_ID_ZMBV,
26376701 120 CODEC_ID_AVS,
348efc18 121 CODEC_ID_SMACKVIDEO,
dfca23e3 122 CODEC_ID_NUV,
fd7b1991 123 CODEC_ID_KMVC,
0919e788 124 CODEC_ID_FLASHSV,
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125
126 /* various pcm "codecs" */
17179d2d 127 CODEC_ID_PCM_S16LE= 0x10000,
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128 CODEC_ID_PCM_S16BE,
129 CODEC_ID_PCM_U16LE,
130 CODEC_ID_PCM_U16BE,
131 CODEC_ID_PCM_S8,
132 CODEC_ID_PCM_U8,
133 CODEC_ID_PCM_MULAW,
134 CODEC_ID_PCM_ALAW,
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135 CODEC_ID_PCM_S32LE,
136 CODEC_ID_PCM_S32BE,
137 CODEC_ID_PCM_U32LE,
138 CODEC_ID_PCM_U32BE,
139 CODEC_ID_PCM_S24LE,
140 CODEC_ID_PCM_S24BE,
141 CODEC_ID_PCM_U24LE,
142 CODEC_ID_PCM_U24BE,
143 CODEC_ID_PCM_S24DAUD,
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144
145 /* various adpcm codecs */
17179d2d 146 CODEC_ID_ADPCM_IMA_QT= 0x11000,
0147f198 147 CODEC_ID_ADPCM_IMA_WAV,
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148 CODEC_ID_ADPCM_IMA_DK3,
149 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 150 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 151 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 152 CODEC_ID_ADPCM_MS,
e2a7bb28 153 CODEC_ID_ADPCM_4XM,
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154 CODEC_ID_ADPCM_XA,
155 CODEC_ID_ADPCM_ADX,
7d8379f2 156 CODEC_ID_ADPCM_EA,
e5966052 157 CODEC_ID_ADPCM_G726,
b3bfb299 158 CODEC_ID_ADPCM_CT,
659c3692 159 CODEC_ID_ADPCM_SWF,
2ff4524e 160 CODEC_ID_ADPCM_YAMAHA,
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161 CODEC_ID_ADPCM_SBPRO_4,
162 CODEC_ID_ADPCM_SBPRO_3,
163 CODEC_ID_ADPCM_SBPRO_2,
891f64b3 164
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165 /* AMR */
166 CODEC_ID_AMR_NB= 0x12000,
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167 CODEC_ID_AMR_WB,
168
b8414bbd 169 /* RealAudio codecs*/
17179d2d 170 CODEC_ID_RA_144= 0x13000,
b8414bbd 171 CODEC_ID_RA_288,
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172
173 /* various DPCM codecs */
17179d2d 174 CODEC_ID_ROQ_DPCM= 0x14000,
3ef8be2b 175 CODEC_ID_INTERPLAY_DPCM,
9937e686 176 CODEC_ID_XAN_DPCM,
d08d7142 177 CODEC_ID_SOL_DPCM,
115329f1 178
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179 CODEC_ID_MP2= 0x15000,
180 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
181 CODEC_ID_AAC,
182 CODEC_ID_MPEG4AAC,
183 CODEC_ID_AC3,
184 CODEC_ID_DTS,
185 CODEC_ID_VORBIS,
186 CODEC_ID_DVAUDIO,
187 CODEC_ID_WMAV1,
188 CODEC_ID_WMAV2,
189 CODEC_ID_MACE3,
190 CODEC_ID_MACE6,
191 CODEC_ID_VMDAUDIO,
192 CODEC_ID_SONIC,
193 CODEC_ID_SONIC_LS,
ac2570a8 194 CODEC_ID_FLAC,
1ede228a 195 CODEC_ID_MP3ADU,
d2a7718d 196 CODEC_ID_MP3ON4,
85ad5695 197 CODEC_ID_SHORTEN,
5df8a0c6 198 CODEC_ID_ALAC,
034eeaa1 199 CODEC_ID_WESTWOOD_SND1,
115329f1 200 CODEC_ID_GSM,
d9b1c197 201 CODEC_ID_QDM2,
e0f7e329 202 CODEC_ID_COOK,
bf3027c8 203 CODEC_ID_TRUESPEECH,
a24c4a2a 204 CODEC_ID_TTA,
348efc18 205 CODEC_ID_SMACKAUDIO,
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206
207 CODEC_ID_OGGTHEORA= 0x16000,
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208
209 /* subtitle codecs */
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210 CODEC_ID_DVD_SUBTITLE= 0x17000,
211 CODEC_ID_DVB_SUBTITLE,
212
17179d2d 213 CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
985180a1 214 stream (only used by libavformat) */
de6d9b64 215};
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216
217/* CODEC_ID_MP3LAME is absolete */
218#define CODEC_ID_MP3LAME CODEC_ID_MP3
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219
220enum CodecType {
4a663d80 221 CODEC_TYPE_UNKNOWN = -1,
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222 CODEC_TYPE_VIDEO,
223 CODEC_TYPE_AUDIO,
985180a1 224 CODEC_TYPE_DATA,
240c1657 225 CODEC_TYPE_SUBTITLE,
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226};
227
a96b68b7 228/* currently unused, may be used if 24/32 bits samples ever supported */
1319a77b 229/* all in native endian */
a96b68b7 230enum SampleFormat {
9076fee4 231 SAMPLE_FMT_NONE = -1,
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232 SAMPLE_FMT_U8, ///< unsigned 8 bits
233 SAMPLE_FMT_S16, ///< signed 16 bits
234 SAMPLE_FMT_S24, ///< signed 24 bits
115329f1 235 SAMPLE_FMT_S32, ///< signed 32 bits
a3a5f4d6 236 SAMPLE_FMT_FLT, ///< float
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237};
238
de6d9b64 239/* in bytes */
8170e5fb 240#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
de6d9b64 241
d7425f59 242/**
cf713bb8 243 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
115329f1 244 * this is mainly needed because some optimized bitstream readers read
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245 * 32 or 64 bit at once and could read over the end<br>
246 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
247 * MPEG bitstreams could cause overread and segfault
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248 */
249#define FF_INPUT_BUFFER_PADDING_SIZE 8
250
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251/**
252 * minimum encoding buffer size.
253 * used to avoid some checks during header writing
254 */
255#define FF_MIN_BUFFER_SIZE 16384
256
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257/* motion estimation type, EPZS by default */
258enum Motion_Est_ID {
101bea5f 259 ME_ZERO = 1,
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260 ME_FULL,
261 ME_LOG,
262 ME_PHODS,
263 ME_EPZS,
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264 ME_X1,
265 ME_HEX,
266 ME_UMH,
267 ME_ITER,
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268};
269
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270enum AVDiscard{
271//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
272 AVDISCARD_NONE =-16, ///< discard nothing
273 AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
274 AVDISCARD_NONREF = 8, ///< discard all non reference
275 AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
276 AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
277 AVDISCARD_ALL = 48, ///< discard all
278};
279
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280typedef struct RcOverride{
281 int start_frame;
282 int end_frame;
283 int qscale; // if this is 0 then quality_factor will be used instead
284 float quality_factor;
285} RcOverride;
286
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287/* only for ME compatiblity with old apps */
288extern int motion_estimation_method;
289
b0ec9efd 290#define FF_MAX_B_FRAMES 16
9dbcbd92 291
a949d72e 292/* encoding support
115329f1 293 these flags can be passed in AVCodecContext.flags before initing
bb628dae 294 Note: not everything is supported yet.
a949d72e 295*/
de6d9b64 296
115329f1 297#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 298#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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299#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
300#define CODEC_FLAG_GMC 0x0020 ///< use GMC
301#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
302#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
303/* parent program gurantees that the input for b-frame containing streams is not written to
9dbcbd92 304 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 305#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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306#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
307#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
308#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
309#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
bb628dae 310#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
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311#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
312#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 313 of only at frame boundaries */
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314#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
315#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 316#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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317#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
318#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
319#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
320#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 321/* Fx : Flag for h263+ extra options */
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322#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
323#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
115329f1 324#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 325#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 326#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 327#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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328#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
329#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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330#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
331#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 332#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 333#define CODEC_FLAG_CLOSED_GOP 0x80000000
6fc5b059 334#define CODEC_FLAG2_FAST 0x00000001 ///< allow non spec compliant speedup tricks
03581772 335#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< strictly enforce GOP size
09b0499f 336#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< skip bitstream encoding
90ad92b3 337#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< place global headers at every keyframe instead of in extradata
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338#define CODEC_FLAG2_BPYRAMID 0x00000010 ///< H.264 allow b-frames to be used as references
339#define CODEC_FLAG2_WPRED 0x00000020 ///< H.264 weighted biprediction for b-frames
340#define CODEC_FLAG2_MIXED_REFS 0x00000040 ///< H.264 multiple references per partition
341#define CODEC_FLAG2_8X8DCT 0x00000080 ///< H.264 high profile 8x8 transform
342#define CODEC_FLAG2_FASTPSKIP 0x00000100 ///< H.264 fast pskip
343#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
344#define CODEC_FLAG2_BRDO 0x00000400 ///< b-frame rate-distortion optimization
307eb248 345#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< use MPEG-2 intra VLC table
6fc5b059 346
21e59552 347/* Unsupported options :
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348 * Syntax Arithmetic coding (SAC)
349 * Reference Picture Selection
350 * Independant Segment Decoding */
21e59552 351/* /Fx */
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352/* codec capabilities */
353
115329f1 354#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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355/**
356 * Codec uses get_buffer() for allocating buffers.
357 * direct rendering method 1
358 */
359#define CODEC_CAP_DR1 0x0002
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360/* if 'parse_only' field is true, then avcodec_parse_frame() can be
361 used */
362#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 363#define CODEC_CAP_TRUNCATED 0x0008
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364/* codec can export data for HW decoding (XvMC) */
365#define CODEC_CAP_HWACCEL 0x0010
115329f1 366/**
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367 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
368 * if this is not set, the codec is guranteed to never be feeded with NULL data
369 */
6f824977 370#define CODEC_CAP_DELAY 0x0020
bf89e6b1 371
bb628dae 372//the following defines may change, don't expect compatibility if you use them
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373#define MB_TYPE_INTRA4x4 0x0001
374#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
375#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
376#define MB_TYPE_16x16 0x0008
377#define MB_TYPE_16x8 0x0010
378#define MB_TYPE_8x16 0x0020
379#define MB_TYPE_8x8 0x0040
380#define MB_TYPE_INTERLACED 0x0080
381#define MB_TYPE_DIRECT2 0x0100 //FIXME
382#define MB_TYPE_ACPRED 0x0200
383#define MB_TYPE_GMC 0x0400
384#define MB_TYPE_SKIP 0x0800
385#define MB_TYPE_P0L0 0x1000
386#define MB_TYPE_P1L0 0x2000
387#define MB_TYPE_P0L1 0x4000
388#define MB_TYPE_P1L1 0x8000
389#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
390#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
391#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
392#define MB_TYPE_QUANT 0x00010000
393#define MB_TYPE_CBP 0x00020000
394//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
395
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396/**
397 * Pan Scan area.
398 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
399 */
400typedef struct AVPanScan{
401 /**
402 * id.
403 * - encoding: set by user.
404 * - decoding: set by lavc
405 */
406 int id;
407
408 /**
409 * width and height in 1/16 pel
410 * - encoding: set by user.
411 * - decoding: set by lavc
412 */
413 int width;
414 int height;
415
416 /**
417 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
418 * - encoding: set by user.
419 * - decoding: set by lavc
420 */
421 int16_t position[3][2];
422}AVPanScan;
423
492cd3a9 424#define FF_COMMON_FRAME \
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425 /**\
426 * pointer to the picture planes.\
427 * this might be different from the first allocated byte\
428 * - encoding: \
429 * - decoding: \
430 */\
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431 uint8_t *data[4];\
432 int linesize[4];\
433 /**\
32db2b1d 434 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
bb628dae 435 * this isn't used by lavc unless the default get/release_buffer() is used\
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436 * - encoding: \
437 * - decoding: \
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438 */\
439 uint8_t *base[4];\
440 /**\
441 * 1 -> keyframe, 0-> not\
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442 * - encoding: set by lavc\
443 * - decoding: set by lavc\
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444 */\
445 int key_frame;\
446\
447 /**\
0da71265 448 * picture type of the frame, see ?_TYPE below.\
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449 * - encoding: set by lavc for coded_picture (and set by user for input)\
450 * - decoding: set by lavc\
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451 */\
452 int pict_type;\
453\
454 /**\
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455 * presentation timestamp in time_base units (time when frame should be shown to user)\
456 * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
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457 * - encoding: MUST be set by user\
458 * - decoding: set by lavc\
1e491e29 459 */\
be6784dc 460 int64_t pts;\
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461\
462 /**\
463 * picture number in bitstream order.\
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464 * - encoding: set by\
465 * - decoding: set by lavc\
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466 */\
467 int coded_picture_number;\
468 /**\
1e491e29 469 * picture number in display order.\
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470 * - encoding: set by\
471 * - decoding: set by lavc\
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472 */\
473 int display_picture_number;\
474\
475 /**\
158c7f05 476 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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477 * - encoding: set by lavc for coded_picture (and set by user for input)\
478 * - decoding: set by lavc\
1e491e29 479 */\
158c7f05 480 int quality; \
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481\
482 /**\
483 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 484 * set to INT_MAX if the buffer has not been used yet \
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485 * - encoding: unused\
486 * - decoding: MUST be set by get_buffer()\
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487 */\
488 int age;\
489\
490 /**\
491 * is this picture used as reference\
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492 * - encoding: unused\
493 * - decoding: set by lavc (before get_buffer() call))\
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494 */\
495 int reference;\
496\
497 /**\
498 * QP table\
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499 * - encoding: unused\
500 * - decoding: set by lavc\
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501 */\
502 int8_t *qscale_table;\
503 /**\
504 * QP store stride\
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505 * - encoding: unused\
506 * - decoding: set by lavc\
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507 */\
508 int qstride;\
509\
510 /**\
511 * mbskip_table[mb]>=1 if MB didnt change\
512 * stride= mb_width = (width+15)>>4\
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513 * - encoding: unused\
514 * - decoding: set by lavc\
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515 */\
516 uint8_t *mbskip_table;\
517\
518 /**\
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519 * Motion vector table.\
520 * @code\
521 * example:\
522 * int mv_sample_log2= 4 - motion_subsample_log2;\
523 * int mb_width= (width+15)>>4;\
524 * int mv_stride= (mb_width << mv_sample_log2) + 1;\
525 * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
526 * @endcode\
a4d36c11 527 * - encoding: set by user\
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528 * - decoding: set by lavc\
529 */\
530 int16_t (*motion_val[2])[2];\
531\
532 /**\
533 * Macroblock type table\
534 * mb_type_base + mb_width + 2\
a4d36c11 535 * - encoding: set by user\
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536 * - decoding: set by lavc\
537 */\
538 uint32_t *mb_type;\
539\
540 /**\
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541 * log2 of the size of the block which a single vector in motion_val represents: \
542 * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
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543 * - encoding: unused\
544 * - decoding: set by lavc\
545 */\
546 uint8_t motion_subsample_log2;\
547\
548 /**\
1e491e29 549 * for some private data of the user\
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550 * - encoding: unused\
551 * - decoding: set by user\
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552 */\
553 void *opaque;\
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554\
555 /**\
556 * error\
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557 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
558 * - decoding: unused\
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559 */\
560 uint64_t error[4];\
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561\
562 /**\
563 * type of the buffer (to keep track of who has to dealloc data[*])\
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564 * - encoding: set by the one who allocs it\
565 * - decoding: set by the one who allocs it\
3db320ea 566 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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567 */\
568 int type;\
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569 \
570 /**\
571 * when decoding, this signal how much the picture must be delayed.\
572 * extra_delay = repeat_pict / (2*fps)\
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573 * - encoding: unused\
574 * - decoding: set by lavc\
2ec23b6d 575 */\
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576 int repeat_pict;\
577 \
578 /**\
579 * \
580 */\
581 int qscale_type;\
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582 \
583 /**\
584 * The content of the picture is interlaced.\
585 * - encoding: set by user\
586 * - decoding: set by lavc (default 0)\
587 */\
588 int interlaced_frame;\
589 \
590 /**\
9dad924e 591 * if the content is interlaced, is top field displayed first.\
2744ca9a 592 * - encoding: set by user\
9dad924e 593 * - decoding: set by lavc\
2744ca9a 594 */\
9dad924e 595 int top_field_first;\
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596 \
597 /**\
598 * Pan scan.\
599 * - encoding: set by user\
600 * - decoding: set by lavc\
601 */\
602 AVPanScan *pan_scan;\
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603 \
604 /**\
605 * tell user application that palette has changed from previous frame.\
606 * - encoding: ??? (no palette-enabled encoder yet)\
607 * - decoding: set by lavc (default 0)\
608 */\
609 int palette_has_changed;\
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610 \
611 /**\
612 * Codec suggestion on buffer type if != 0\
613 * - encoding: unused\
614 * - decoding: set by lavc (before get_buffer() call))\
615 */\
616 int buffer_hints;\
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617\
618 /**\
619 * DCT coeffitients\
620 * - encoding: unused\
621 * - decoding: set by lavc\
622 */\
623 short *dct_coeff;\
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624\
625 /**\
626 * Motion referece frame index\
627 * - encoding: set by user\
628 * - decoding: set by lavc\
629 */\
630 int8_t *ref_index[2];
2ec23b6d 631
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632#define FF_QSCALE_TYPE_MPEG1 0
633#define FF_QSCALE_TYPE_MPEG2 1
634#define FF_QSCALE_TYPE_H264 2
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635
636#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 637#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
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638#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
639#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, don't dealloc anything
4e00e76b 640
1e491e29 641
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642#define FF_I_TYPE 1 // Intra
643#define FF_P_TYPE 2 // Predicted
644#define FF_B_TYPE 3 // Bi-dir predicted
645#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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646#define FF_SI_TYPE 5
647#define FF_SP_TYPE 6
1e491e29 648
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649#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
650#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
651#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
652#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
653
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654/**
655 * Audio Video Frame.
656 */
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657typedef struct AVFrame {
658 FF_COMMON_FRAME
659} AVFrame;
1e491e29 660
14bea432 661#define DEFAULT_FRAME_RATE_BASE 1001000
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662
663/**
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664 * Used by av_log
665 */
666typedef struct AVCLASS AVClass;
667struct AVCLASS {
668 const char* class_name;
669 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
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670 or AVFormatContext, which begin with an AVClass.
671 Needed because av_log is in libavcodec and has no visibility
672 of AVIn/OutputFormat */
6fd46414 673 struct AVOption *option;
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674};
675
676/**
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677 * main external api structure.
678 */
de6d9b64 679typedef struct AVCodecContext {
b71901e6 680 /**
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681 * Info on struct for av_log
682 * - set by avcodec_alloc_context
683 */
43465395 684 AVClass *av_class;
bc874dae 685 /**
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686 * the average bitrate.
687 * - encoding: set by user. unused for constant quantizer encoding
115329f1 688 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 689 */
de6d9b64 690 int bit_rate;
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691
692 /**
64863965 693 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 694 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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695 * - encoding: set by user. unused for constant quantizer encoding
696 * - decoding: unused
b71901e6 697 */
115329f1 698 int bit_rate_tolerance;
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699
700 /**
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701 * CODEC_FLAG_*.
702 * - encoding: set by user.
703 * - decoding: set by user.
b71901e6 704 */
de6d9b64 705 int flags;
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706
707 /**
708 * some codecs needs additionnal format info. It is stored here
115329f1 709 * - encoding: set by user.
64863965 710 * - decoding: set by lavc. (FIXME is this ok?)
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711 */
712 int sub_id;
713
714 /**
64863965 715 * motion estimation algorithm used for video coding.
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716 * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
717 * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
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718 * - encoding: MUST be set by user.
719 * - decoding: unused
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720 */
721 int me_method;
722
723 /**
64863965 724 * some codecs need / can use extra-data like huffman tables.
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725 * mjpeg: huffman tables
726 * rv10: additional flags
b704e742 727 * mpeg4: global headers (they can be in the bitstream or here)
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728 * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
729 * then extradata_size to avoid prolems if its read with the bitstream reader
ed57bb79 730 * the bytewise contents of extradata must not depend on the architecture or cpu endianness
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731 * - encoding: set/allocated/freed by lavc.
732 * - decoding: set/allocated/freed by user.
b71901e6 733 */
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734 void *extradata;
735 int extradata_size;
115329f1 736
b71901e6 737 /**
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738 * this is the fundamental unit of time (in seconds) in terms
739 * of which frame timestamps are represented. for fixed-fps content,
740 * timebase should be 1/framerate and timestamp increments should be
741 * identically 1.
64863965 742 * - encoding: MUST be set by user
c0df9d75 743 * - decoding: set by lavc.
b71901e6 744 */
c0df9d75 745 AVRational time_base;
115329f1 746
5b28c8c3 747 /* video only */
14bea432 748 /**
21adafec 749 * picture width / height.
115329f1 750 * - encoding: MUST be set by user.
21adafec 751 * - decoding: set by lavc.
115329f1 752 * Note, for compatibility its possible to set this instead of
21adafec 753 * coded_width/height before decoding
b71901e6 754 */
de6d9b64 755 int width, height;
115329f1 756
e769f053 757#define FF_ASPECT_EXTENDED 15
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758
759 /**
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760 * the number of pictures in a group of pitures, or 0 for intra_only.
761 * - encoding: set by user.
762 * - decoding: unused
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763 */
764 int gop_size;
765
766 /**
64863965 767 * pixel format, see PIX_FMT_xxx.
a3a5f4d6 768 * - encoding: set by user.
64863965 769 * - decoding: set by lavc.
b71901e6 770 */
e4eadb4b 771 enum PixelFormat pix_fmt;
115329f1 772
bdfcbbed 773 /**
115329f1 774 * Frame rate emulation. If not zero lower layer (i.e. format handler)
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775 * has to read frames at native frame rate.
776 * - encoding: set by user.
777 * - decoding: unused.
778 */
779 int rate_emu;
115329f1 780
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781 /**
782 * if non NULL, 'draw_horiz_band' is called by the libavcodec
783 * decoder to draw an horizontal band. It improve cache usage. Not
784 * all codecs can do that. You must check the codec capabilities
785 * before
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786 * - encoding: unused
787 * - decoding: set by user.
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788 * @param height the height of the slice
789 * @param y the y position of the slice
790 * @param type 1->top field, 2->bottom field, 3->frame
791 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 792 */
bf89e6b1 793 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 794 const AVFrame *src, int offset[4],
3bb07d61 795 int y, int type, int height);
bf89e6b1 796
de6d9b64 797 /* audio only */
115329f1 798 int sample_rate; ///< samples per sec
de6d9b64 799 int channels;
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800
801 /**
802 * audio sample format.
803 * - encoding: set by user.
804 * - decoding: set by lavc.
805 */
115329f1 806 enum SampleFormat sample_fmt; ///< sample format, currenly unused
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807
808 /* the following data should not be initialized */
718b27a7 809 /**
115329f1 810 * samples per packet. initialized when calling 'init'
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811 */
812 int frame_size;
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DB
813 int frame_number; ///< audio or video frame number
814 int real_pict_num; ///< returns the real picture number of previous encoded frame
815
b71901e6 816 /**
115329f1 817 * number of frames the decoded output will be delayed relative to
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818 * the encoded input.
819 * - encoding: set by lavc.
820 * - decoding: unused
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821 */
822 int delay;
115329f1 823
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824 /* - encoding parameters */
825 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
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826 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
827
b71901e6 828 /**
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829 * minimum quantizer.
830 * - encoding: set by user.
831 * - decoding: unused
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832 */
833 int qmin;
834
835 /**
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836 * maximum quantizer.
837 * - encoding: set by user.
838 * - decoding: unused
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839 */
840 int qmax;
841
842 /**
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843 * maximum quantizer difference etween frames.
844 * - encoding: set by user.
845 * - decoding: unused
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846 */
847 int max_qdiff;
848
849 /**
64863965 850 * maximum number of b frames between non b frames.
b71901e6 851 * note: the output will be delayed by max_b_frames+1 relative to the input
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852 * - encoding: set by user.
853 * - decoding: unused
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854 */
855 int max_b_frames;
856
857 /**
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858 * qscale factor between ip and b frames.
859 * - encoding: set by user.
860 * - decoding: unused
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861 */
862 float b_quant_factor;
115329f1 863
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864 /** obsolete FIXME remove */
865 int rc_strategy;
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866#define FF_RC_STRATEGY_XVID 1
867
8b4c7dbc 868 int b_frame_strategy;
9dbcbd92 869
b71901e6 870 /**
64863965 871 * hurry up amount.
8c3eba7c 872 * deprecated in favor of skip_idct and skip_frame
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873 * - encoding: unused
874 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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875 */
876 int hurry_up;
115329f1 877
de6d9b64 878 struct AVCodec *codec;
115329f1 879
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FB
880 void *priv_data;
881
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MN
882 /* unused, FIXME remove*/
883 int rtp_mode;
115329f1 884
bb628dae 885 int rtp_payload_size; /* The size of the RTP payload: the coder will */
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J
886 /* do it's best to deliver a chunk with size */
887 /* below rtp_payload_size, the chunk will start */
888 /* with a start code on some codecs like H.263 */
889 /* This doesn't take account of any particular */
890 /* headers inside the transmited RTP payload */
81401c1f 891
115329f1 892
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DB
893 /* The RTP callback: This function is called */
894 /* every time the encoder has a packet to send */
895 /* Depends on the encoder if the data starts */
896 /* with a Start Code (it should) H.263 does. */
897 /* mb_nb contains the number of macroblocks */
898 /* encoded in the RTP payload */
115329f1 899 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
81401c1f 900
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901 /* statistics, used for 2-pass encoding */
902 int mv_bits;
903 int header_bits;
904 int i_tex_bits;
905 int p_tex_bits;
906 int i_count;
907 int p_count;
908 int skip_count;
b71901e6 909 int misc_bits;
115329f1 910
b71901e6 911 /**
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912 * number of bits used for the previously encoded frame.
913 * - encoding: set by lavc
7004ffb3 914 * - decoding: unused
b71901e6 915 */
098eefe1 916 int frame_bits;
7004ffb3 917
b71901e6 918 /**
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919 * private data of the user, can be used to carry app specific stuff.
920 * - encoding: set by user
921 * - decoding: set by user
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922 */
923 void *opaque;
924
de6d9b64 925 char codec_name[32];
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PG
926 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
927 enum CodecID codec_id; /* see CODEC_ID_xxx */
115329f1 928
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929 /**
930 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
931 * this is used to workaround some encoder bugs
bd5a6020 932 * - encoding: set by user, if not then the default based on codec_id will be used
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933 * - decoding: set by user, will be converted to upper case by lavc during init
934 */
935 unsigned int codec_tag;
115329f1 936
b71901e6 937 /**
64863965 938 * workaround bugs in encoders which sometimes cannot be detected automatically.
59fa3f96 939 * - encoding: set by user
64863965 940 * - decoding: set by user
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941 */
942 int workaround_bugs;
64863965 943#define FF_BUG_AUTODETECT 1 ///< autodetection
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944#define FF_BUG_OLD_MSMPEG4 2
945#define FF_BUG_XVID_ILACE 4
946#define FF_BUG_UMP4 8
947#define FF_BUG_NO_PADDING 16
3116cb14 948#define FF_BUG_AMV 32
ac0c6638 949#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 950#define FF_BUG_QPEL_CHROMA 64
db794953 951#define FF_BUG_STD_QPEL 128
36df8805 952#define FF_BUG_QPEL_CHROMA2 256
c40c3482 953#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 954#define FF_BUG_EDGE 1024
b44bdf7e 955#define FF_BUG_HPEL_CHROMA 2048
4ccde216 956#define FF_BUG_DC_CLIP 4096
59fa3f96 957#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
4d2858de 958//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
115329f1 959
b71901e6 960 /**
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961 * luma single coeff elimination threshold.
962 * - encoding: set by user
963 * - decoding: unused
b71901e6 964 */
1f6b6e50 965 int luma_elim_threshold;
115329f1 966
b71901e6 967 /**
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968 * chroma single coeff elimination threshold.
969 * - encoding: set by user
970 * - decoding: unused
b71901e6 971 */
1f6b6e50 972 int chroma_elim_threshold;
115329f1 973
b71901e6 974 /**
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975 * strictly follow the std (MPEG4, ...).
976 * - encoding: set by user
977 * - decoding: unused
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978 */
979 int strict_std_compliance;
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980#define FF_COMPLIANCE_VERY_STRICT 2 ///< strictly conform to a older more strict version of the spec or reference software
981#define FF_COMPLIANCE_STRICT 1 ///< strictly conform to all the things in the spec no matter what consequences
982#define FF_COMPLIANCE_NORMAL 0
983#define FF_COMPLIANCE_INOFFICIAL -1 ///< allow inofficial extensions
984#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
985
b71901e6 986 /**
64863965 987 * qscale offset between ip and b frames.
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988 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
989 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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990 * - encoding: set by user.
991 * - decoding: unused
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992 */
993 float b_quant_offset;
115329f1 994
b71901e6 995 /**
ce3bcaed 996 * error resilience higher values will detect more errors but may missdetect
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997 * some more or less valid parts as errors.
998 * - encoding: unused
999 * - decoding: set by user
b71901e6 1000 */
1f6b6e50 1001 int error_resilience;
1471c6c2 1002#define FF_ER_CAREFUL 1
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1003#define FF_ER_COMPLIANT 2
1004#define FF_ER_AGGRESSIVE 3
1005#define FF_ER_VERY_AGGRESSIVE 4
115329f1 1006
6b72ac63 1007 /**
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1008 * called at the beginning of each frame to get a buffer for it.
1009 * if pic.reference is set then the frame will be read later by lavc
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1010 * avcodec_align_dimensions() should be used to find the required width and
1011 * height, as they normally need to be rounded up to the next multiple of 16
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1012 * - encoding: unused
1013 * - decoding: set by lavc, user can override
b71901e6 1014 */
492cd3a9 1015 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
115329f1 1016
b71901e6 1017 /**
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1018 * called to release buffers which where allocated with get_buffer.
1019 * a released buffer can be reused in get_buffer()
1020 * pic.data[*] must be set to NULL
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1021 * - encoding: unused
1022 * - decoding: set by lavc, user can override
b71901e6 1023 */
492cd3a9 1024 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 1025
b71901e6 1026 /**
e6a2ac34
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1027 * if 1 the stream has a 1 frame delay during decoding.
1028 * - encoding: set by lavc
64863965 1029 * - decoding: set by lavc
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MN
1030 */
1031 int has_b_frames;
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MN
1032
1033 /**
1034 * number of bytes per packet if constant and known or 0
1035 * used by some WAV based audio codecs
1036 */
1037 int block_align;
115329f1 1038
64863965 1039 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
1040 (function avcodec_parse_frame()). The frame
1041 data is returned. Only MPEG codecs support this now. */
115329f1 1042
b71901e6 1043 /**
e4eadb4b 1044 * 0-> h263 quant 1-> mpeg quant.
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1045 * - encoding: set by user.
1046 * - decoding: unused
b71901e6
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1047 */
1048 int mpeg_quant;
115329f1 1049
b71901e6 1050 /**
64863965
MN
1051 * pass1 encoding statistics output buffer.
1052 * - encoding: set by lavc
1053 * - decoding: unused
b71901e6 1054 */
64863965 1055 char *stats_out;
115329f1 1056
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MN
1057 /**
1058 * pass2 encoding statistics input buffer.
1059 * concatenated stuff from stats_out of pass1 should be placed here
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MN
1060 * - encoding: allocated/set/freed by user
1061 * - decoding: unused
b71901e6
MN
1062 */
1063 char *stats_in;
115329f1 1064
b71901e6 1065 /**
64863965 1066 * ratecontrol qmin qmax limiting method.
b71901e6 1067 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
MN
1068 * - encoding: set by user.
1069 * - decoding: unused
b71901e6 1070 */
ce980a95 1071 float rc_qsquish;
b71901e6 1072
ce980a95
MN
1073 float rc_qmod_amp;
1074 int rc_qmod_freq;
115329f1 1075
b71901e6 1076 /**
64863965
MN
1077 * ratecontrol override, see RcOverride.
1078 * - encoding: allocated/set/freed by user.
1079 * - decoding: unused
b71901e6 1080 */
ce980a95
MN
1081 RcOverride *rc_override;
1082 int rc_override_count;
115329f1 1083
b71901e6 1084 /**
64863965
MN
1085 * rate control equation.
1086 * - encoding: set by user
1087 * - decoding: unused
b71901e6 1088 */
ce980a95 1089 char *rc_eq;
115329f1 1090
b71901e6 1091 /**
64863965
MN
1092 * maximum bitrate.
1093 * - encoding: set by user.
1094 * - decoding: unused
b71901e6 1095 */
ce980a95 1096 int rc_max_rate;
115329f1 1097
b71901e6 1098 /**
64863965
MN
1099 * minimum bitrate.
1100 * - encoding: set by user.
1101 * - decoding: unused
b71901e6 1102 */
ce980a95 1103 int rc_min_rate;
115329f1 1104
b71901e6 1105 /**
64863965
MN
1106 * decoder bitstream buffer size.
1107 * - encoding: set by user.
1108 * - decoding: unused
b71901e6 1109 */
ce980a95
MN
1110 int rc_buffer_size;
1111 float rc_buffer_aggressivity;
b71901e6
MN
1112
1113 /**
64863965 1114 * qscale factor between p and i frames.
a1e257b2
MN
1115 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1116 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
64863965
MN
1117 * - encoding: set by user.
1118 * - decoding: unused
b71901e6
MN
1119 */
1120 float i_quant_factor;
115329f1 1121
b71901e6 1122 /**
64863965 1123 * qscale offset between p and i frames.
64863965
MN
1124 * - encoding: set by user.
1125 * - decoding: unused
b71901e6
MN
1126 */
1127 float i_quant_offset;
115329f1 1128
b71901e6 1129 /**
64863965
MN
1130 * initial complexity for pass1 ratecontrol.
1131 * - encoding: set by user.
1132 * - decoding: unused
b71901e6 1133 */
ce980a95 1134 float rc_initial_cplx;
917e06c8 1135
b71901e6 1136 /**
64863965
MN
1137 * dct algorithm, see FF_DCT_* below.
1138 * - encoding: set by user
1139 * - decoding: unused
b71901e6 1140 */
28db7fce 1141 int dct_algo;
c7e07931 1142#define FF_DCT_AUTO 0
28db7fce 1143#define FF_DCT_FASTINT 1
c7e07931
MO
1144#define FF_DCT_INT 2
1145#define FF_DCT_MMX 3
1146#define FF_DCT_MLIB 4
05c4072b 1147#define FF_DCT_ALTIVEC 5
65e4c8c9 1148#define FF_DCT_FAAN 6
115329f1 1149
c5d309f2 1150 /**
64863965
MN
1151 * luminance masking (0-> disabled).
1152 * - encoding: set by user
1153 * - decoding: unused
c5d309f2
MN
1154 */
1155 float lumi_masking;
115329f1 1156
c5d309f2 1157 /**
64863965
MN
1158 * temporary complexity masking (0-> disabled).
1159 * - encoding: set by user
1160 * - decoding: unused
c5d309f2
MN
1161 */
1162 float temporal_cplx_masking;
115329f1 1163
c5d309f2 1164 /**
64863965
MN
1165 * spatial complexity masking (0-> disabled).
1166 * - encoding: set by user
1167 * - decoding: unused
c5d309f2
MN
1168 */
1169 float spatial_cplx_masking;
115329f1 1170
c5d309f2 1171 /**
64863965
MN
1172 * p block masking (0-> disabled).
1173 * - encoding: set by user
1174 * - decoding: unused
c5d309f2
MN
1175 */
1176 float p_masking;
15415af4 1177
5e746b99 1178 /**
64863965
MN
1179 * darkness masking (0-> disabled).
1180 * - encoding: set by user
1181 * - decoding: unused
5e746b99
MN
1182 */
1183 float dark_masking;
115329f1
DB
1184
1185
3a694b04
NK
1186 /* for binary compatibility */
1187 int unused;
115329f1 1188
0c2dd16e 1189 /**
64863965
MN
1190 * idct algorithm, see FF_IDCT_* below.
1191 * - encoding: set by user
1192 * - decoding: set by user
2ad1516a
MN
1193 */
1194 int idct_algo;
1195#define FF_IDCT_AUTO 0
1196#define FF_IDCT_INT 1
1197#define FF_IDCT_SIMPLE 2
1198#define FF_IDCT_SIMPLEMMX 3
1199#define FF_IDCT_LIBMPEG2MMX 4
1200#define FF_IDCT_PS2 5
1201#define FF_IDCT_MLIB 6
1202#define FF_IDCT_ARM 7
05c4072b 1203#define FF_IDCT_ALTIVEC 8
b82cdc72 1204#define FF_IDCT_SH4 9
bd7d1ea7 1205#define FF_IDCT_SIMPLEARM 10
0fa8158d 1206#define FF_IDCT_H264 11
8b6103da 1207#define FF_IDCT_VP3 12
eba9ae3c 1208#define FF_IDCT_IPP 13
84740d59 1209#define FF_IDCT_XVIDMMX 14
2ad1516a 1210
144f0625 1211 /**
64863965
MN
1212 * slice count.
1213 * - encoding: set by lavc
1214 * - decoding: set by user (or 0)
144f0625
MN
1215 */
1216 int slice_count;
1217 /**
64863965
MN
1218 * slice offsets in the frame in bytes.
1219 * - encoding: set/allocated by lavc
1220 * - decoding: set/allocated by user (or NULL)
144f0625
MN
1221 */
1222 int *slice_offset;
1223
4d2858de 1224 /**
64863965
MN
1225 * error concealment flags.
1226 * - encoding: unused
1227 * - decoding: set by user
4d2858de
MN
1228 */
1229 int error_concealment;
1230#define FF_EC_GUESS_MVS 1
1231#define FF_EC_DEBLOCK 2
1232
6b72ac63 1233 /**
bec89a84 1234 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1235 * CPU features (i.e. MMX, SSE. ...)
bec89a84
ZK
1236 *
1237 * with FORCE flag you may instead enable given CPU features
1238 * (Dangerous: usable in case of misdetection, improper usage however will
1239 * result into program crash)
1240 */
1241 unsigned dsp_mask;
bb270c08 1242#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
bec89a84
ZK
1243 /* lower 16 bits - CPU features */
1244#ifdef HAVE_MMX
bb270c08
DB
1245#define FF_MM_MMX 0x0001 /* standard MMX */
1246#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1247#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1248#define FF_MM_SSE 0x0008 /* SSE functions */
1249#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1250#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
bec89a84 1251#endif /* HAVE_MMX */
eba9ae3c 1252#ifdef HAVE_IWMMXT
bb270c08 1253#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
eba9ae3c 1254#endif /* HAVE_IWMMXT */
11f18faf
MN
1255
1256 /**
64863965
MN
1257 * bits per sample/pixel from the demuxer (needed for huffyuv).
1258 * - encoding: set by lavc
1259 * - decoding: set by user
11f18faf
MN
1260 */
1261 int bits_per_sample;
115329f1 1262
11f18faf 1263 /**
64863965
MN
1264 * prediction method (needed for huffyuv).
1265 * - encoding: set by user
1266 * - decoding: unused
11f18faf
MN
1267 */
1268 int prediction_method;
1269#define FF_PRED_LEFT 0
1270#define FF_PRED_PLANE 1
1271#define FF_PRED_MEDIAN 2
115329f1 1272
5d3cea3a 1273 /**
5ff85f1d 1274 * sample aspect ratio (0 if unknown).
1f26c6f3 1275 * numerator and denominator must be relative prime and smaller then 256 for some video standards
64863965
MN
1276 * - encoding: set by user.
1277 * - decoding: set by lavc.
5d3cea3a 1278 */
5ff85f1d 1279 AVRational sample_aspect_ratio;
1e491e29
MN
1280
1281 /**
64863965
MN
1282 * the picture in the bitstream.
1283 * - encoding: set by lavc
1284 * - decoding: set by lavc
1e491e29 1285 */
492cd3a9 1286 AVFrame *coded_frame;
c8c437bc
MN
1287
1288 /**
64863965
MN
1289 * debug.
1290 * - encoding: set by user.
1291 * - decoding: set by user.
c8c437bc
MN
1292 */
1293 int debug;
1294#define FF_DEBUG_PICT_INFO 1
1295#define FF_DEBUG_RC 2
1296#define FF_DEBUG_BITSTREAM 4
1297#define FF_DEBUG_MB_TYPE 8
1298#define FF_DEBUG_QP 16
1299#define FF_DEBUG_MV 32
8289c6fa 1300#define FF_DEBUG_DCT_COEFF 0x00000040
41773b73
MN
1301#define FF_DEBUG_SKIP 0x00000080
1302#define FF_DEBUG_STARTCODE 0x00000100
1303#define FF_DEBUG_PTS 0x00000200
46b4feec 1304#define FF_DEBUG_ER 0x00000400
0da71265 1305#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1306#define FF_DEBUG_BUGS 0x00001000
864119b6
MN
1307#define FF_DEBUG_VIS_QP 0x00002000
1308#define FF_DEBUG_VIS_MB_TYPE 0x00004000
115329f1 1309
140cb663 1310 /**
0c9bbaec
WH
1311 * debug.
1312 * - encoding: set by user.
1313 * - decoding: set by user.
1314 */
1315 int debug_mv;
1316#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1317#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1318#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1319
1320 /**
64863965
MN
1321 * error.
1322 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1323 * - decoding: unused
140cb663
MN
1324 */
1325 uint64_t error[4];
115329f1 1326
17a70fde 1327 /**
64863965 1328 * minimum MB quantizer.
6e0d8c06 1329 * - encoding: unused
64863965 1330 * - decoding: unused
17a70fde
MN
1331 */
1332 int mb_qmin;
1333
1334 /**
64863965 1335 * maximum MB quantizer.
6e0d8c06 1336 * - encoding: unused
64863965 1337 * - decoding: unused
17a70fde
MN
1338 */
1339 int mb_qmax;
115329f1 1340
1457ab52 1341 /**
64863965
MN
1342 * motion estimation compare function.
1343 * - encoding: set by user.
1344 * - decoding: unused
1457ab52
MN
1345 */
1346 int me_cmp;
1347 /**
64863965
MN
1348 * subpixel motion estimation compare function.
1349 * - encoding: set by user.
1350 * - decoding: unused
1457ab52
MN
1351 */
1352 int me_sub_cmp;
1353 /**
64863965
MN
1354 * macroblock compare function (not supported yet).
1355 * - encoding: set by user.
1356 * - decoding: unused
1457ab52
MN
1357 */
1358 int mb_cmp;
622348f9
MN
1359 /**
1360 * interlaced dct compare function
1361 * - encoding: set by user.
1362 * - decoding: unused
1363 */
1364 int ildct_cmp;
1457ab52
MN
1365#define FF_CMP_SAD 0
1366#define FF_CMP_SSE 1
1367#define FF_CMP_SATD 2
1368#define FF_CMP_DCT 3
1369#define FF_CMP_PSNR 4
1370#define FF_CMP_BIT 5
1371#define FF_CMP_RD 6
1372#define FF_CMP_ZERO 7
622348f9
MN
1373#define FF_CMP_VSAD 8
1374#define FF_CMP_VSSE 9
e6a2ac34 1375#define FF_CMP_NSSE 10
26efc54e
MN
1376#define FF_CMP_W53 11
1377#define FF_CMP_W97 12
0fd6aea1 1378#define FF_CMP_DCTMAX 13
27c61ac5 1379#define FF_CMP_DCT264 14
1457ab52 1380#define FF_CMP_CHROMA 256
115329f1 1381
1457ab52 1382 /**
64863965
MN
1383 * ME diamond size & shape.
1384 * - encoding: set by user.
1385 * - decoding: unused
1457ab52
MN
1386 */
1387 int dia_size;
b07a5980
MN
1388
1389 /**
64863965
MN
1390 * amount of previous MV predictors (2a+1 x 2a+1 square).
1391 * - encoding: set by user.
1392 * - decoding: unused
b07a5980
MN
1393 */
1394 int last_predictor_count;
70ac76c0 1395
f5fb6b34 1396 /**
64863965
MN
1397 * pre pass for motion estimation.
1398 * - encoding: set by user.
1399 * - decoding: unused
f5fb6b34
MN
1400 */
1401 int pre_me;
b07a5980 1402
70ac76c0 1403 /**
64863965
MN
1404 * motion estimation pre pass compare function.
1405 * - encoding: set by user.
1406 * - decoding: unused
70ac76c0
MN
1407 */
1408 int me_pre_cmp;
826f429a 1409
70ac76c0 1410 /**
64863965
MN
1411 * ME pre pass diamond size & shape.
1412 * - encoding: set by user.
1413 * - decoding: unused
70ac76c0
MN
1414 */
1415 int pre_dia_size;
1416
826f429a 1417 /**
64863965
MN
1418 * subpel ME quality.
1419 * - encoding: set by user.
1420 * - decoding: unused
826f429a
MN
1421 */
1422 int me_subpel_quality;
1423
a33c7159 1424 /**
64863965 1425 * callback to negotiate the pixelFormat.
a33c7159
MN
1426 * @param fmt is the list of formats which are supported by the codec,
1427 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1428 * the first is allways the native one
1429 * @return the choosen format
64863965
MN
1430 * - encoding: unused
1431 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1432 */
494c56d3 1433 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
e2f9490e
FB
1434
1435 /**
1436 * DTG active format information (additionnal aspect ratio
1437 * information only used in DVB MPEG2 transport streams). 0 if
1438 * not set.
115329f1 1439 *
64863965 1440 * - encoding: unused.
115329f1 1441 * - decoding: set by decoder
e2f9490e
FB
1442 */
1443 int dtg_active_format;
1444#define FF_DTG_AFD_SAME 8
1445#define FF_DTG_AFD_4_3 9
1446#define FF_DTG_AFD_16_9 10
1447#define FF_DTG_AFD_14_9 11
1448#define FF_DTG_AFD_4_3_SP_14_9 13
1449#define FF_DTG_AFD_16_9_SP_14_9 14
1450#define FF_DTG_AFD_SP_4_3 15
1451
ebbcdc9a
MN
1452 /**
1453 * Maximum motion estimation search range in subpel units.
1454 * if 0 then no limit
115329f1 1455 *
64863965
MN
1456 * - encoding: set by user.
1457 * - decoding: unused.
ebbcdc9a 1458 */
59e0ac8e 1459 int me_range;
ebbcdc9a 1460
65f7062d 1461 /**
1984f635
MN
1462 * intra quantizer bias.
1463 * - encoding: set by user.
1464 * - decoding: unused
1465 */
1466 int intra_quant_bias;
1467#define FF_DEFAULT_QUANT_BIAS 999999
115329f1 1468
1984f635
MN
1469 /**
1470 * inter quantizer bias.
1471 * - encoding: set by user.
1472 * - decoding: unused
1473 */
1474 int inter_quant_bias;
5cd62665
ZK
1475
1476 /**
1477 * color table ID.
1478 * - encoding: unused.
1479 * - decoding: which clrtable should be used for 8bit RGB images
1480 * table have to be stored somewhere FIXME
1481 */
1482 int color_table_id;
115329f1 1483
d90cf87b 1484 /**
115329f1 1485 * internal_buffer count.
bb628dae 1486 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1487 */
1488 int internal_buffer_count;
115329f1 1489
d90cf87b 1490 /**
115329f1 1491 * internal_buffers.
bb628dae 1492 * Don't touch, used by lavc default_get_buffer()
d90cf87b
MN
1493 */
1494 void *internal_buffer;
158c7f05
MN
1495
1496#define FF_LAMBDA_SHIFT 7
1497#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1498#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1499#define FF_LAMBDA_MAX (256*128-1)
1500
1501#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
3d2e8cce
MN
1502 /**
1503 * global quality for codecs which cannot change it per frame.
1504 * this should be proportional to MPEG1/2/4 qscale.
1505 * - encoding: set by user.
1506 * - decoding: unused
1507 */
1508 int global_quality;
115329f1 1509
11e659c2
MN
1510#define FF_CODER_TYPE_VLC 0
1511#define FF_CODER_TYPE_AC 1
1512 /**
1513 * coder type
1514 * - encoding: set by user.
1515 * - decoding: unused
1516 */
1517 int coder_type;
1518
1519 /**
1520 * context model
1521 * - encoding: set by user.
1522 * - decoding: unused
1523 */
1524 int context_model;
5639729b
MN
1525#if 0
1526 /**
1527 *
1528 * - encoding: unused
1529 * - decoding: set by user.
1530 */
1531 uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1532#endif
115329f1 1533
3bb07d61
MN
1534 /**
1535 * slice flags
1536 * - encoding: unused
1537 * - decoding: set by user.
1538 */
1539 int slice_flags;
1540#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1541#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1542#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1543
fb364ada
IK
1544 /**
1545 * XVideo Motion Acceleration
1546 * - encoding: forbidden
1547 * - decoding: set by decoder
1548 */
1549 int xvmc_acceleration;
115329f1 1550
7d1c3fc1
MN
1551 /**
1552 * macroblock decision mode
1553 * - encoding: set by user.
1554 * - decoding: unused
1555 */
1556 int mb_decision;
1557#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1558#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1559#define FF_MB_DECISION_RD 2 ///< rate distoration
d6eb3c50
MN
1560
1561 /**
1562 * custom intra quantization matrix
1563 * - encoding: set by user, can be NULL
1564 * - decoding: set by lavc
1565 */
1566 uint16_t *intra_matrix;
1567
1568 /**
1569 * custom inter quantization matrix
1570 * - encoding: set by user, can be NULL
1571 * - decoding: set by lavc
1572 */
1573 uint16_t *inter_matrix;
115329f1 1574
541ae140
MN
1575 /**
1576 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1577 * this is used to workaround some encoder bugs
1578 * - encoding: unused
1579 * - decoding: set by user, will be converted to upper case by lavc during init
1580 */
1581 unsigned int stream_codec_tag;
05fbd0a2
MN
1582
1583 /**
1584 * scene change detection threshold.
1585 * 0 is default, larger means fewer detected scene changes
1586 * - encoding: set by user.
1587 * - decoding: unused
1588 */
1589 int scenechange_threshold;
158c7f05
MN
1590
1591 /**
1592 * minimum lagrange multipler
1593 * - encoding: set by user.
1594 * - decoding: unused
1595 */
1596 int lmin;
1597
1598 /**
1599 * maximum lagrange multipler
1600 * - encoding: set by user.
1601 * - decoding: unused
1602 */
1603 int lmax;
2a2bbcb0
MM
1604
1605 /**
1606 * Palette control structure
1607 * - encoding: ??? (no palette-enabled encoder yet)
1608 * - decoding: set by user.
1609 */
1610 struct AVPaletteControl *palctrl;
821cb11f
MN
1611
1612 /**
1613 * noise reduction strength
1614 * - encoding: set by user.
1615 * - decoding: unused
1616 */
1617 int noise_reduction;
115329f1 1618
074c4ca7 1619 /**
e1c2a5a0
RT
1620 * called at the beginning of a frame to get cr buffer for it.
1621 * buffer type (size, hints) must be the same. lavc won't check it.
1622 * lavc will pass previous buffer in pic, function should return
1623 * same buffer or new buffer with old frame "painted" into it.
1624 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1625 * - encoding: unused
e1c2a5a0 1626 * - decoding: set by lavc, user can override
074c4ca7 1627 */
e1c2a5a0 1628 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
ba58dabc
MN
1629
1630 /**
1631 * number of bits which should be loaded into the rc buffer before decoding starts
1632 * - encoding: set by user.
1633 * - decoding: unused
1634 */
1635 int rc_initial_buffer_occupancy;
1636
1637 /**
1638 *
1639 * - encoding: set by user.
1640 * - decoding: unused
1641 */
1642 int inter_threshold;
1643
1644 /**
1645 * CODEC_FLAG2_*.
1646 * - encoding: set by user.
1647 * - decoding: set by user.
1648 */
1649 int flags2;
7ebfc0ea
MN
1650
1651 /**
1652 * simulates errors in the bitstream to test error concealment.
1653 * - encoding: set by user.
1654 * - decoding: unused.
1655 */
1656 int error_rate;
115329f1 1657
a1e257b2
MN
1658 /**
1659 * MP3 antialias algorithm, see FF_AA_* below.
1660 * - encoding: unused
1661 * - decoding: set by user
1662 */
1663 int antialias_algo;
1664#define FF_AA_AUTO 0
1665#define FF_AA_FASTINT 1 //not implemented yet
1666#define FF_AA_INT 2
1667#define FF_AA_FLOAT 3
77ea0d4b
MN
1668 /**
1669 * Quantizer noise shaping.
1670 * - encoding: set by user
1671 * - decoding: unused
1672 */
1673 int quantizer_noise_shaping;
9c3d33d6
MN
1674
1675 /**
1676 * Thread count.
1677 * is used to decide how many independant tasks should be passed to execute()
1678 * - encoding: set by user
1679 * - decoding: set by user
1680 */
1681 int thread_count;
115329f1 1682
9c3d33d6
MN
1683 /**
1684 * the codec may call this to execute several independant things. it will return only after
1685 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1686 * default implementation will execute the parts serially
399cec2f 1687 * @param count the number of things to execute
9c3d33d6
MN
1688 * - encoding: set by lavc, user can override
1689 * - decoding: set by lavc, user can override
1690 */
1691 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
115329f1 1692
9c3d33d6
MN
1693 /**
1694 * Thread opaque.
1695 * can be used by execute() to store some per AVCodecContext stuff.
1696 * - encoding: set by execute()
1697 * - decoding: set by execute()
1698 */
1699 void *thread_opaque;
a4d36c11
MN
1700
1701 /**
115329f1 1702 * Motion estimation threshold. under which no motion estimation is
f20f8a8b 1703 * performed, but instead the user specified motion vectors are used
115329f1 1704 *
a4d36c11 1705 * - encoding: set by user
f20f8a8b 1706 * - decoding: unused
a4d36c11 1707 */
2750b827 1708 int me_threshold;
f20f8a8b
MN
1709
1710 /**
1711 * Macroblock threshold. under which the user specified macroblock types will be used
1712 * - encoding: set by user
1713 * - decoding: unused
1714 */
1715 int mb_threshold;
bf266e19
MN
1716
1717 /**
d4c5d2ad 1718 * precision of the intra dc coefficient - 8.
bf266e19
MN
1719 * - encoding: set by user
1720 * - decoding: unused
1721 */
1722 int intra_dc_precision;
d4c5d2ad
MN
1723
1724 /**
1725 * noise vs. sse weight for the nsse comparsion function.
1726 * - encoding: set by user
1727 * - decoding: unused
1728 */
1729 int nsse_weight;
0dfd33c3
MN
1730
1731 /**
160d679c 1732 * number of macroblock rows at the top which are skipped.
0dfd33c3
MN
1733 * - encoding: unused
1734 * - decoding: set by user
1735 */
1736 int skip_top;
1737
1738 /**
160d679c 1739 * number of macroblock rows at the bottom which are skipped.
0dfd33c3
MN
1740 * - encoding: unused
1741 * - decoding: set by user
1742 */
1743 int skip_bottom;
baced9f5
MN
1744
1745 /**
1746 * profile
1747 * - encoding: set by user
1748 * - decoding: set by lavc
1749 */
1750 int profile;
1751#define FF_PROFILE_UNKNOWN -99
1752
1753 /**
1754 * level
1755 * - encoding: set by user
1756 * - decoding: set by lavc
1757 */
1758 int level;
1759#define FF_LEVEL_UNKNOWN -99
178fcca8
MN
1760
1761 /**
1762 * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1763 * - encoding: unused
1764 * - decoding: set by user
1765 */
1766 int lowres;
21adafec
MN
1767
1768 /**
bbf18b21 1769 * bitsream width / height. may be different from width/height if lowres
21adafec
MN
1770 * or other things are used
1771 * - encoding: unused
1772 * - decoding: set by user before init if known, codec should override / dynamically change if needed
1773 */
1774 int coded_width, coded_height;
bbf18b21
MN
1775
1776 /**
1777 * frame skip threshold
1778 * - encoding: set by user
1779 * - decoding: unused
1780 */
1781 int frame_skip_threshold;
1782
1783 /**
1784 * frame skip factor
1785 * - encoding: set by user
1786 * - decoding: unused
1787 */
1788 int frame_skip_factor;
0fd6aea1
MN
1789
1790 /**
1791 * frame skip exponent
1792 * - encoding: set by user
1793 * - decoding: unused
1794 */
1795 int frame_skip_exp;
1796
1797 /**
1798 * frame skip comparission function
1799 * - encoding: set by user.
1800 * - decoding: unused
1801 */
1802 int frame_skip_cmp;
957c743a
CM
1803
1804 /**
1805 * border processing masking. raises the quantizer for mbs on the borders
1806 * of the picture.
1807 * - encoding: set by user
1808 * - decoding: unused
1809 */
1810 float border_masking;
6e0d8c06
MN
1811
1812 /**
1813 * minimum MB lagrange multipler.
1814 * - encoding: set by user.
1815 * - decoding: unused
1816 */
1817 int mb_lmin;
1818
1819 /**
1820 * maximum MB lagrange multipler.
1821 * - encoding: set by user.
1822 * - decoding: unused
1823 */
1824 int mb_lmax;
09c3e44e
MN
1825
1826 /**
115329f1 1827 *
09c3e44e
MN
1828 * - encoding: set by user.
1829 * - decoding: unused
1830 */
1831 int me_penalty_compensation;
8c3eba7c
MN
1832
1833 /**
115329f1 1834 *
8c3eba7c
MN
1835 * - encoding: unused
1836 * - decoding: set by user.
1837 */
1838 enum AVDiscard skip_loop_filter;
1839
1840 /**
115329f1 1841 *
8c3eba7c
MN
1842 * - encoding: unused
1843 * - decoding: set by user.
1844 */
1845 enum AVDiscard skip_idct;
1846
1847 /**
115329f1 1848 *
8c3eba7c
MN
1849 * - encoding: unused
1850 * - decoding: set by user.
1851 */
1852 enum AVDiscard skip_frame;
316a2ec8
MN
1853
1854 /**
1855 *
1856 * - encoding: set by user.
1857 * - decoding: unused
1858 */
1859 int bidir_refine;
e8501c93
MN
1860
1861 /**
1862 *
1863 * - encoding: set by user.
1864 * - decoding: unused
1865 */
1866 int brd_scale;
58f7833e
RS
1867
1868 /**
1869 * constant rate factor - quality-based VBR - values ~correspond to qps
1870 * - encoding: set by user.
1871 * - decoding: unused
1872 */
1873 int crf;
1874
1875 /**
1876 * constant quantization parameter rate control method
1877 * - encoding: set by user.
1878 * - decoding: unused
1879 */
1880 int cqp;
1881
1882 /**
1883 * minimum gop size
1884 * - encoding: set by user.
1885 * - decoding: unused
1886 */
1887 int keyint_min;
1888
1889 /**
1890 * number of reference frames
1891 * - encoding: set by user.
1892 * - decoding: unused
1893 */
1894 int refs;
1895
1896 /**
1897 * chroma qp offset from luma
1898 * - encoding: set by user.
1899 * - decoding: unused
1900 */
1901 int chromaoffset;
1902
1903 /**
1904 * influences how often b-frames are used
1905 * - encoding: set by user.
1906 * - decoding: unused
1907 */
1908 int bframebias;
1909
1910 /**
1911 * trellis RD quantization
1912 * - encoding: set by user.
1913 * - decoding: unused
1914 */
1915 int trellis;
1916
1917 /**
1918 * reduce fluctuations in qp (before curve compression)
1919 * - encoding: set by user.
1920 * - decoding: unused
1921 */
1922 float complexityblur;
1923
1924 /**
1925 * in-loop deblocking filter alphac0 parameter
1926 * alpha is in the range -6...6
1927 * - encoding: set by user.
1928 * - decoding: unused
1929 */
1930 int deblockalpha;
1931
1932 /**
1933 * in-loop deblocking filter beta parameter
1934 * beta is in the range -6...6
1935 * - encoding: set by user.
1936 * - decoding: unused
1937 */
1938 int deblockbeta;
1939
1940 /**
1941 * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1942 * - encoding: set by user.
1943 * - decoding: unused
1944 */
1945 int partitions;
1946#define X264_PART_I4X4 0x001 /* Analyse i4x4 */
1947#define X264_PART_I8X8 0x002 /* Analyse i8x8 (requires 8x8 transform) */
1948#define X264_PART_P8X8 0x010 /* Analyse p16x8, p8x16 and p8x8 */
1949#define X264_PART_P4X4 0x020 /* Analyse p8x4, p4x8, p4x4 */
1950#define X264_PART_B8X8 0x100 /* Analyse b16x8, b8x16 and b8x8 */
1951
1952 /**
1953 * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1954 * - encoding: set by user.
1955 * - decoding: unused
1956 */
1957 int directpred;
4f59b684 1958
14f0c8e2
LA
1959 /**
1960 * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1961 * - encoding: set by user.
1962 * - decoding: unused
1963 */
1964 int cutoff;
39a64e30
CH
1965
1966 /**
1967 * multiplied by qscale for each frame and added to scene_change_score
1968 * - encoding: set by user.
1969 * - decoding: unused
1970 */
1971 int scenechange_factor;
1dd509b1
MN
1972
1973 /**
1974 *
1975 * note: value depends upon the compare functin used for fullpel ME
1976 * - encoding: set by user.
1977 * - decoding: unused
1978 */
1979 int mv0_threshold;
de6d9b64
FB
1980} AVCodecContext;
1981
64863965
MN
1982/**
1983 * AVCodec.
1984 */
de6d9b64 1985typedef struct AVCodec {
18f77016 1986 const char *name;
5d234974 1987 enum CodecType type;
9297ddd3 1988 enum CodecID id;
de6d9b64
FB
1989 int priv_data_size;
1990 int (*init)(AVCodecContext *);
0c1a9eda 1991 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1992 int (*close)(AVCodecContext *);
0fd90455 1993 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1994 uint8_t *buf, int buf_size);
bf89e6b1 1995 int capabilities;
a1043f9c 1996#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
40c5fa26 1997 void *dummy; // FIXME remove next time we break binary compatibility
a1043f9c 1998#endif
de6d9b64 1999 struct AVCodec *next;
7a06ff14 2000 void (*flush)(AVCodecContext *);
b0df362b 2001 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 2002 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
2003} AVCodec;
2004
97d96aaa 2005/**
d7425f59
MN
2006 * four components are given, that's all.
2007 * the last component is alpha
2008 */
de6d9b64 2009typedef struct AVPicture {
0c1a9eda 2010 uint8_t *data[4];
cd394651 2011 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
2012} AVPicture;
2013
ba118447
MM
2014/**
2015 * AVPaletteControl
2016 * This structure defines a method for communicating palette changes
2017 * between and demuxer and a decoder.
2018 */
2e99641b 2019#define AVPALETTE_SIZE 1024
432d84c3 2020#define AVPALETTE_COUNT 256
ba118447
MM
2021typedef struct AVPaletteControl {
2022
2023 /* demuxer sets this to 1 to indicate the palette has changed;
2024 * decoder resets to 0 */
2025 int palette_changed;
2026
2a2bbcb0
MM
2027 /* 4-byte ARGB palette entries, stored in native byte order; note that
2028 * the individual palette components should be on a 8-bit scale; if
2029 * the palette data comes from a IBM VGA native format, the component
2030 * data is probably 6 bits in size and needs to be scaled */
2e99641b 2031 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
2032
2033} AVPaletteControl;
2034
c6ec28b1 2035typedef struct AVSubtitleRect {
240c1657
FB
2036 uint16_t x;
2037 uint16_t y;
2038 uint16_t w;
2039 uint16_t h;
2040 uint16_t nb_colors;
240c1657
FB
2041 int linesize;
2042 uint32_t *rgba_palette;
2043 uint8_t *bitmap;
c6ec28b1
MN
2044} AVSubtitleRect;
2045
2046typedef struct AVSubtitle {
2047 uint16_t format; /* 0 = graphics */
2048 uint32_t start_display_time; /* relative to packet pts, in ms */
2049 uint32_t end_display_time; /* relative to packet pts, in ms */
2050 uint32_t num_rects;
2051 AVSubtitleRect *rects;
240c1657
FB
2052} AVSubtitle;
2053
de6d9b64
FB
2054extern AVCodec ac3_encoder;
2055extern AVCodec mp2_encoder;
9d36bdc9 2056extern AVCodec mp3lame_encoder;
81e0d0b4 2057extern AVCodec oggvorbis_encoder;
5c5dea3f 2058extern AVCodec oggtheora_encoder;
29d48296 2059extern AVCodec faac_encoder;
1ddadfa9 2060extern AVCodec xvid_encoder;
de6d9b64 2061extern AVCodec mpeg1video_encoder;
029911d1 2062extern AVCodec mpeg2video_encoder;
1c3990db 2063extern AVCodec h261_encoder;
de6d9b64
FB
2064extern AVCodec h263_encoder;
2065extern AVCodec h263p_encoder;
d4f5d74a 2066extern AVCodec flv_encoder;
de6d9b64 2067extern AVCodec rv10_encoder;
68b94c35 2068extern AVCodec rv20_encoder;
6faa4645 2069extern AVCodec dvvideo_encoder;
de6d9b64 2070extern AVCodec mjpeg_encoder;
b1e6b355 2071extern AVCodec ljpeg_encoder;
5639729b 2072extern AVCodec jpegls_encoder;
4eff7cf4 2073extern AVCodec png_encoder;
5b6d5596
MN
2074extern AVCodec ppm_encoder;
2075extern AVCodec pgm_encoder;
2076extern AVCodec pgmyuv_encoder;
2077extern AVCodec pbm_encoder;
2078extern AVCodec pam_encoder;
bf89e6b1 2079extern AVCodec mpeg4_encoder;
84afee34
MN
2080extern AVCodec msmpeg4v1_encoder;
2081extern AVCodec msmpeg4v2_encoder;
2082extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
2083extern AVCodec wmv1_encoder;
2084extern AVCodec wmv2_encoder;
11f18faf 2085extern AVCodec huffyuv_encoder;
f37b9768 2086extern AVCodec ffvhuff_encoder;
0da71265 2087extern AVCodec h264_encoder;
3d2e8cce 2088extern AVCodec asv1_encoder;
9b56edf5 2089extern AVCodec asv2_encoder;
be3564ed 2090extern AVCodec vcr1_encoder;
5e20f836 2091extern AVCodec ffv1_encoder;
791e7b83 2092extern AVCodec snow_encoder;
c3bf0288 2093extern AVCodec mdec_encoder;
a273bbfb 2094extern AVCodec zlib_encoder;
54f5fd22
AB
2095extern AVCodec sonic_encoder;
2096extern AVCodec sonic_ls_encoder;
3b64893d 2097extern AVCodec svq1_encoder;
6662ec29 2098extern AVCodec x264_encoder;
de6d9b64
FB
2099
2100extern AVCodec h263_decoder;
c6148de2 2101extern AVCodec h261_decoder;
bf89e6b1 2102extern AVCodec mpeg4_decoder;
84afee34
MN
2103extern AVCodec msmpeg4v1_decoder;
2104extern AVCodec msmpeg4v2_decoder;
2105extern AVCodec msmpeg4v3_decoder;
e1a9dbff 2106extern AVCodec wmv1_decoder;
0151a6f5 2107extern AVCodec wmv2_decoder;
21aa398f
AB
2108extern AVCodec vc9_decoder;
2109extern AVCodec wmv3_decoder;
922bc38d
MN
2110extern AVCodec mpeg1video_decoder;
2111extern AVCodec mpeg2video_decoder;
c512b303 2112extern AVCodec mpegvideo_decoder;
fb364ada 2113extern AVCodec mpeg_xvmc_decoder;
de6d9b64 2114extern AVCodec h263i_decoder;
d4f5d74a 2115extern AVCodec flv_decoder;
de6d9b64 2116extern AVCodec rv10_decoder;
68b94c35 2117extern AVCodec rv20_decoder;
3f05305d
MN
2118extern AVCodec rv30_decoder;
2119extern AVCodec rv40_decoder;
be8ffec9 2120extern AVCodec svq1_decoder;
8b82a956 2121extern AVCodec svq3_decoder;
020fcc94 2122extern AVCodec dvvideo_decoder;
bc8d1857
FB
2123extern AVCodec wmav1_decoder;
2124extern AVCodec wmav2_decoder;
4e66ab3b 2125extern AVCodec mjpeg_decoder;
b135d9fb 2126extern AVCodec mjpegb_decoder;
5e83dec4 2127extern AVCodec sp5x_decoder;
4eff7cf4 2128extern AVCodec png_decoder;
4b1f4f23 2129extern AVCodec mp2_decoder;
a96b68b7 2130extern AVCodec mp3_decoder;
1ede228a 2131extern AVCodec mp3adu_decoder;
d2a7718d 2132extern AVCodec mp3on4_decoder;
d9b1c197 2133extern AVCodec qdm2_decoder;
e0f7e329 2134extern AVCodec cook_decoder;
bf3027c8 2135extern AVCodec truespeech_decoder;
a24c4a2a 2136extern AVCodec tta_decoder;
3f95e843
FR
2137extern AVCodec mace3_decoder;
2138extern AVCodec mace6_decoder;
11f18faf 2139extern AVCodec huffyuv_decoder;
f37b9768 2140extern AVCodec ffvhuff_decoder;
3aca208a 2141extern AVCodec oggvorbis_decoder;
5c5dea3f 2142extern AVCodec oggtheora_decoder;
f70f7c6d 2143extern AVCodec cyuv_decoder;
0da71265 2144extern AVCodec h264_decoder;
deabd4fd 2145extern AVCodec indeo3_decoder;
d86053a4 2146extern AVCodec vp3_decoder;
f44ee2c3 2147extern AVCodec theora_decoder;
891f64b3 2148extern AVCodec amr_nb_decoder;
bc634f6f 2149extern AVCodec amr_nb_encoder;
d663a1fd
MN
2150extern AVCodec amr_wb_encoder;
2151extern AVCodec amr_wb_decoder;
280bd7b7
ZK
2152extern AVCodec aac_decoder;
2153extern AVCodec mpeg4aac_decoder;
3d2e8cce 2154extern AVCodec asv1_decoder;
9b56edf5 2155extern AVCodec asv2_decoder;
be3564ed 2156extern AVCodec vcr1_decoder;
3aff069b 2157extern AVCodec cljr_decoder;
5e20f836 2158extern AVCodec ffv1_decoder;
791e7b83 2159extern AVCodec snow_decoder;
8809cfee 2160extern AVCodec fourxm_decoder;
c3bf0288 2161extern AVCodec mdec_decoder;
3ef8be2b
MM
2162extern AVCodec roq_decoder;
2163extern AVCodec interplay_video_decoder;
9937e686 2164extern AVCodec xan_wc3_decoder;
2fdf638b
MM
2165extern AVCodec rpza_decoder;
2166extern AVCodec cinepak_decoder;
2167extern AVCodec msrle_decoder;
2168extern AVCodec msvideo1_decoder;
6955a882 2169extern AVCodec vqa_decoder;
4120a53a 2170extern AVCodec idcin_decoder;
1dc1ed99 2171extern AVCodec eightbps_decoder;
11e29a41 2172extern AVCodec smc_decoder;
42cad81a 2173extern AVCodec flic_decoder;
fafa0b75
MM
2174extern AVCodec vmdvideo_decoder;
2175extern AVCodec vmdaudio_decoder;
9a4117d5 2176extern AVCodec truemotion1_decoder;
64af6168 2177extern AVCodec truemotion2_decoder;
a273bbfb
RT
2178extern AVCodec mszh_decoder;
2179extern AVCodec zlib_decoder;
b8414bbd
NK
2180extern AVCodec ra_144_decoder;
2181extern AVCodec ra_288_decoder;
3ef8be2b
MM
2182extern AVCodec roq_dpcm_decoder;
2183extern AVCodec interplay_dpcm_decoder;
9937e686 2184extern AVCodec xan_dpcm_decoder;
d08d7142 2185extern AVCodec sol_dpcm_decoder;
54f5fd22 2186extern AVCodec sonic_decoder;
070ed1bc 2187extern AVCodec qtrle_decoder;
ac2570a8 2188extern AVCodec flac_decoder;
9d53d58e 2189extern AVCodec tscc_decoder;
e0f80bd7 2190extern AVCodec cscd_decoder;
dfca23e3 2191extern AVCodec nuv_decoder;
d0a0bbd2 2192extern AVCodec ulti_decoder;
d08d7142 2193extern AVCodec qdraw_decoder;
ab711b3c 2194extern AVCodec xl_decoder;
acfd8f0f 2195extern AVCodec qpeg_decoder;
85ad5695 2196extern AVCodec shorten_decoder;
9c7fb608 2197extern AVCodec loco_decoder;
a8a15e9d 2198extern AVCodec wnv1_decoder;
589f8220 2199extern AVCodec aasc_decoder;
6d6d7970 2200extern AVCodec alac_decoder;
034eeaa1 2201extern AVCodec ws_snd1_decoder;
856dbbff 2202extern AVCodec indeo2_decoder;
0bde73d9 2203extern AVCodec vorbis_decoder;
b81f8949 2204extern AVCodec fraps_decoder;
bb4c2140
MN
2205extern AVCodec libgsm_encoder;
2206extern AVCodec libgsm_decoder;
9fa62f2a 2207extern AVCodec bmp_decoder;
4e114829 2208extern AVCodec mmvideo_decoder;
9c8d8e84 2209extern AVCodec zmbv_decoder;
26376701 2210extern AVCodec avs_decoder;
348efc18
KS
2211extern AVCodec smacker_decoder;
2212extern AVCodec smackaud_decoder;
0c35eb1c 2213extern AVCodec kmvc_decoder;
0919e788 2214extern AVCodec flashsv_decoder;
de6d9b64 2215
a96b68b7
FB
2216/* pcm codecs */
2217#define PCM_CODEC(id, name) \
2218extern AVCodec name ## _decoder; \
f11d3f23 2219extern AVCodec name ## _encoder
a96b68b7 2220
b461b3bc
RD
2221PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2222PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2223PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2224PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2225PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2226PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2227PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2228PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2229PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
a96b68b7
FB
2230PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2231PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2232PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2233PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2234PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2235PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2236PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2237PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2238
0147f198
FR
2239/* adpcm codecs */
2240
2241PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2242PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
2243PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2244PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 2245PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 2246PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 2247PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 2248PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
2249PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2250PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 2251PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 2252PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
b3bfb299 2253PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
659c3692 2254PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2ff4524e 2255PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2433f24f
AJ
2256PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2257PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2258PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
0147f198 2259
a96b68b7
FB
2260#undef PCM_CODEC
2261
2262/* dummy raw video codec */
63167088
RS
2263extern AVCodec rawvideo_encoder;
2264extern AVCodec rawvideo_decoder;
de6d9b64
FB
2265
2266/* the following codecs use external GPL libs */
de6d9b64 2267extern AVCodec ac3_decoder;
23c99253 2268extern AVCodec dts_decoder;
de6d9b64 2269
240c1657 2270/* subtitles */
689abe56 2271extern AVCodec dvdsub_encoder;
240c1657
FB
2272extern AVCodec dvdsub_decoder;
2273extern AVCodec dvbsub_encoder;
c6ec28b1 2274extern AVCodec dvbsub_decoder;
240c1657 2275
de6d9b64
FB
2276/* resample.c */
2277
2278struct ReSampleContext;
aaaf1635 2279struct AVResampleContext;
de6d9b64
FB
2280
2281typedef struct ReSampleContext ReSampleContext;
2282
115329f1 2283ReSampleContext *audio_resample_init(int output_channels, int input_channels,
de6d9b64
FB
2284 int output_rate, int input_rate);
2285int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2286void audio_resample_close(ReSampleContext *s);
2287
6e225de2 2288struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
aaaf1635 2289int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 2290void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 2291void av_resample_close(struct AVResampleContext *c);
aaaf1635 2292
de6d9b64
FB
2293/* YUV420 format is assumed ! */
2294
2295struct ImgReSampleContext;
2296
2297typedef struct ImgReSampleContext ImgReSampleContext;
2298
2299ImgReSampleContext *img_resample_init(int output_width, int output_height,
2300 int input_width, int input_height);
ab6d194a
MN
2301
2302ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2303 int iwidth, int iheight,
2304 int topBand, int bottomBand,
1ff93ffc
TK
2305 int leftBand, int rightBand,
2306 int padtop, int padbottom,
2307 int padleft, int padright);
2308
ab6d194a 2309
115329f1 2310void img_resample(ImgReSampleContext *s,
da64ecc3 2311 AVPicture *output, const AVPicture *input);
de6d9b64
FB
2312
2313void img_resample_close(ImgReSampleContext *s);
2314
75917b88
DH
2315/**
2316 * Allocate memory for a picture. Call avpicture_free to free it.
2317 *
2318 * @param picture the picture to be filled in.
2319 * @param pix_fmt the format of the picture.
2320 * @param width the width of the picture.
2321 * @param height the height of the picture.
2322 * @return 0 if successful, -1 if not.
2323 */
2324int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2325
2326/* Free a picture previously allocated by avpicture_alloc. */
2327void avpicture_free(AVPicture *picture);
2328
0c1a9eda 2329int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 2330 int pix_fmt, int width, int height);
da64ecc3 2331int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 2332 unsigned char *dest, int dest_size);
219b06c6 2333int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
2334void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2335const char *avcodec_get_pix_fmt_name(int pix_fmt);
21adafec 2336void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
63167088 2337enum PixelFormat avcodec_get_pix_fmt(const char* name);
d07730dd 2338unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
219b06c6 2339
fab21997
FB
2340#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
2341#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
2342#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
2343#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
2344#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
2345#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2346
2347int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2348 int has_alpha);
2349int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2350 int has_alpha, int *loss_ptr);
2351
0469baf1
FB
2352#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
2353#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3 2354int img_get_alpha_info(const AVPicture *src,
bb270c08 2355 int pix_fmt, int width, int height);
0469baf1 2356
219b06c6
FB
2357/* convert among pixel formats */
2358int img_convert(AVPicture *dst, int dst_pix_fmt,
115329f1 2359 const AVPicture *src, int pix_fmt,
219b06c6
FB
2360 int width, int height);
2361
2362/* deinterlace a picture */
da64ecc3 2363int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2364 int pix_fmt, int width, int height);
2365
2366/* external high level API */
2367
2368extern AVCodec *first_avcodec;
2369
156e5023 2370/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 2371unsigned avcodec_version(void);
8bceb6af 2372/* returns LIBAVCODEC_BUILD constant */
51a49663 2373unsigned avcodec_build(void);
de6d9b64
FB
2374void avcodec_init(void);
2375
2376void register_avcodec(AVCodec *format);
2377AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 2378AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
2379AVCodec *avcodec_find_decoder(enum CodecID id);
2380AVCodec *avcodec_find_decoder_by_name(const char *name);
2381void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2382
1e491e29 2383void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 2384AVCodecContext *avcodec_alloc_context(void);
7906085f 2385void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 2386AVFrame *avcodec_alloc_frame(void);
1e491e29 2387
492cd3a9
MN
2388int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2389void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
2390int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2391void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
0ecca7a4 2392int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
3a569751 2393enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 2394
5a815088
MN
2395int avcodec_thread_init(AVCodecContext *s, int thread_count);
2396void avcodec_thread_free(AVCodecContext *s);
2397int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 2398int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
2399//FIXME func typedef
2400
7a06ff14
MN
2401/**
2402 * opens / inits the AVCodecContext.
2403 * not thread save!
2404 */
de6d9b64 2405int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 2406
115329f1 2407int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2408 int *frame_size_ptr,
0c1a9eda 2409 uint8_t *buf, int buf_size);
115329f1 2410int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2411 int *got_picture_ptr,
0c1a9eda 2412 uint8_t *buf, int buf_size);
240c1657
FB
2413int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2414 int *got_sub_ptr,
2415 const uint8_t *buf, int buf_size);
115329f1 2416int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2417 int *data_size_ptr,
0c1a9eda 2418 uint8_t *buf, int buf_size);
115329f1 2419int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2420 const short *samples);
115329f1 2421int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2422 const AVFrame *pict);
115329f1 2423int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657 2424 const AVSubtitle *sub);
de6d9b64
FB
2425
2426int avcodec_close(AVCodecContext *avctx);
2427
2428void avcodec_register_all(void);
a96b68b7 2429
1c2a8c7f
MN
2430void avcodec_flush_buffers(AVCodecContext *avctx);
2431
88730be6
MR
2432void avcodec_default_free_buffers(AVCodecContext *s);
2433
14bea432 2434/* misc usefull functions */
d8085ea7
MN
2435
2436/**
2437 * returns a single letter to describe the picture type
2438 */
2439char av_get_pict_type_char(int pict_type);
2440
2e8f2c20 2441
8424cf50
FB
2442/* frame parsing */
2443typedef struct AVCodecParserContext {
2444 void *priv_data;
2445 struct AVCodecParser *parser;
2446 int64_t frame_offset; /* offset of the current frame */
115329f1 2447 int64_t cur_offset; /* current offset
8424cf50
FB
2448 (incremented by each av_parser_parse()) */
2449 int64_t last_frame_offset; /* offset of the last frame */
2450 /* video info */
2451 int pict_type; /* XXX: put it back in AVCodecContext */
2452 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2453 int64_t pts; /* pts of the current frame */
2454 int64_t dts; /* dts of the current frame */
2455
2456 /* private data */
2457 int64_t last_pts;
2458 int64_t last_dts;
a62aecce 2459 int fetch_timestamp;
b84f2a35
FB
2460
2461#define AV_PARSER_PTS_NB 4
2462 int cur_frame_start_index;
2463 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2464 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2465 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
115329f1 2466
7cbaa7ba
MN
2467 int flags;
2468#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
8424cf50
FB
2469} AVCodecParserContext;
2470
2471typedef struct AVCodecParser {
99f06236 2472 int codec_ids[5]; /* several codec IDs are permitted */
8424cf50
FB
2473 int priv_data_size;
2474 int (*parser_init)(AVCodecParserContext *s);
115329f1 2475 int (*parser_parse)(AVCodecParserContext *s,
8424cf50 2476 AVCodecContext *avctx,
115329f1 2477 uint8_t **poutbuf, int *poutbuf_size,
8424cf50
FB
2478 const uint8_t *buf, int buf_size);
2479 void (*parser_close)(AVCodecParserContext *s);
90ad92b3 2480 int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
8424cf50
FB
2481 struct AVCodecParser *next;
2482} AVCodecParser;
2483
2484extern AVCodecParser *av_first_parser;
2485
2486void av_register_codec_parser(AVCodecParser *parser);
2487AVCodecParserContext *av_parser_init(int codec_id);
115329f1 2488int av_parser_parse(AVCodecParserContext *s,
8424cf50 2489 AVCodecContext *avctx,
115329f1 2490 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2491 const uint8_t *buf, int buf_size,
2492 int64_t pts, int64_t dts);
90ad92b3
MN
2493int av_parser_change(AVCodecParserContext *s,
2494 AVCodecContext *avctx,
115329f1 2495 uint8_t **poutbuf, int *poutbuf_size,
90ad92b3 2496 const uint8_t *buf, int buf_size, int keyframe);
8424cf50
FB
2497void av_parser_close(AVCodecParserContext *s);
2498
2499extern AVCodecParser mpegvideo_parser;
2500extern AVCodecParser mpeg4video_parser;
c6148de2 2501extern AVCodecParser h261_parser;
8424cf50
FB
2502extern AVCodecParser h263_parser;
2503extern AVCodecParser h264_parser;
8e6325b9 2504extern AVCodecParser mjpeg_parser;
99f06236 2505extern AVCodecParser pnm_parser;
8424cf50
FB
2506extern AVCodecParser mpegaudio_parser;
2507extern AVCodecParser ac3_parser;
240c1657 2508extern AVCodecParser dvdsub_parser;
c6ec28b1 2509extern AVCodecParser dvbsub_parser;
da46276f 2510extern AVCodecParser aac_parser;
8424cf50 2511
544eb99c 2512/* memory */
e4eadb4b 2513void *av_malloc(unsigned int size);
18f77016 2514void *av_mallocz(unsigned int size);
8e1e6f31 2515void *av_realloc(void *ptr, unsigned int size);
544eb99c 2516void av_free(void *ptr);
8e1e6f31 2517char *av_strdup(const char *s);
81c5f887 2518void av_freep(void *ptr);
97d96aaa 2519void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2520/* for static data only */
2521/* call av_free_static to release all staticaly allocated tables */
628d601b 2522void av_free_static(void);
8d1f2ba5 2523void *av_mallocz_static(unsigned int size);
073c2593 2524void *av_realloc_static(void *ptr, unsigned int size);
544eb99c 2525
fc384777
MM
2526/* add by bero : in adx.c */
2527int is_adx(const unsigned char *buf,size_t bufsize);
2528
e1c2a5a0
RT
2529void img_copy(AVPicture *dst, const AVPicture *src,
2530 int pix_fmt, int width, int height);
2531
f2651e7a
BC
2532int img_crop(AVPicture *dst, const AVPicture *src,
2533 int pix_fmt, int top_band, int left_band);
2534
5341c209
LA
2535int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2536 int padtop, int padbottom, int padleft, int padright, int *color);
2537
9b879566
MB
2538/* av_log API */
2539
2540#include <stdarg.h>
2541
d8019eb5 2542#define AV_LOG_QUIET -1
9b879566
MB
2543#define AV_LOG_ERROR 0
2544#define AV_LOG_INFO 1
2545#define AV_LOG_DEBUG 2
2546
f4bd8cf0 2547#ifdef __GNUC__
bc874dae 2548extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2549#else
2550extern void av_log(void*, int level, const char *fmt, ...);
2551#endif
2552
bc874dae 2553extern void av_vlog(void*, int level, const char *fmt, va_list);
9b879566
MB
2554extern int av_log_get_level(void);
2555extern void av_log_set_level(int);
bc874dae 2556extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2557
3a278992 2558/* endian macros */
e96682e6 2559#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2560#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2561#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2562 (((uint8_t*)(x))[1] << 16) | \
2563 (((uint8_t*)(x))[2] << 8) | \
2564 ((uint8_t*)(x))[3])
2565#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2566#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2567 (((uint8_t*)(x))[2] << 16) | \
2568 (((uint8_t*)(x))[1] << 8) | \
2569 ((uint8_t*)(x))[0])
e96682e6 2570#endif
3a278992 2571
ad2b531d
MR
2572extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2573
02d697aa
ZK
2574#ifdef __cplusplus
2575}
2576#endif
2577
a96b68b7 2578#endif /* AVCODEC_H */