cross compile fix by (allanc at chickenandporn dot com)
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4/**
5 * @file avcodec.h
d33c949c 6 * external api header.
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7 */
8
9
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10#ifdef __cplusplus
11extern "C" {
12#endif
13
de6d9b64 14#include "common.h"
5ff85f1d 15#include "rational.h"
4b813d5c 16#include <sys/types.h> /* size_t */
de6d9b64 17
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18#define FFMPEG_VERSION_INT 0x000409
19#define FFMPEG_VERSION "0.4.9-pre1"
e30174cd 20#define LIBAVCODEC_BUILD 4719
4b1f4f23 21
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22#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
23#define LIBAVCODEC_VERSION FFMPEG_VERSION
24
25#define AV_STRINGIFY(s) AV_TOSTRING(s)
26#define AV_TOSTRING(s) #s
27#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
ce2749d2 28
2a24fe4c 29#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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30#define AV_TIME_BASE 1000000
31
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32enum CodecID {
33 CODEC_ID_NONE,
34 CODEC_ID_MPEG1VIDEO,
dcedf586 35 CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
fb364ada 36 CODEC_ID_MPEG2VIDEO_XVMC,
c6148de2 37 CODEC_ID_H261,
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38 CODEC_ID_H263,
39 CODEC_ID_RV10,
68b94c35 40 CODEC_ID_RV20,
de6d9b64 41 CODEC_ID_MP2,
dcedf586 42 CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
81e0d0b4 43 CODEC_ID_VORBIS,
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44 CODEC_ID_AC3,
45 CODEC_ID_MJPEG,
b135d9fb 46 CODEC_ID_MJPEGB,
b1e6b355 47 CODEC_ID_LJPEG,
5e83dec4 48 CODEC_ID_SP5X,
bf89e6b1 49 CODEC_ID_MPEG4,
de6d9b64 50 CODEC_ID_RAWVIDEO,
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51 CODEC_ID_MSMPEG4V1,
52 CODEC_ID_MSMPEG4V2,
53 CODEC_ID_MSMPEG4V3,
e1a9dbff 54 CODEC_ID_WMV1,
b50eef3a 55 CODEC_ID_WMV2,
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56 CODEC_ID_H263P,
57 CODEC_ID_H263I,
d4f5d74a 58 CODEC_ID_FLV1,
be8ffec9 59 CODEC_ID_SVQ1,
8b82a956 60 CODEC_ID_SVQ3,
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61 CODEC_ID_DVVIDEO,
62 CODEC_ID_DVAUDIO,
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63 CODEC_ID_WMAV1,
64 CODEC_ID_WMAV2,
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65 CODEC_ID_MACE3,
66 CODEC_ID_MACE6,
11f18faf 67 CODEC_ID_HUFFYUV,
f70f7c6d 68 CODEC_ID_CYUV,
0da71265 69 CODEC_ID_H264,
deabd4fd 70 CODEC_ID_INDEO3,
d86053a4 71 CODEC_ID_VP3,
f44ee2c3 72 CODEC_ID_THEORA,
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73 CODEC_ID_AAC,
74 CODEC_ID_MPEG4AAC,
3d2e8cce 75 CODEC_ID_ASV1,
9b56edf5 76 CODEC_ID_ASV2,
5e20f836 77 CODEC_ID_FFV1,
e2a7bb28 78 CODEC_ID_4XM,
be3564ed 79 CODEC_ID_VCR1,
3aff069b 80 CODEC_ID_CLJR,
c3bf0288 81 CODEC_ID_MDEC,
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82 CODEC_ID_ROQ,
83 CODEC_ID_INTERPLAY_VIDEO,
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84 CODEC_ID_XAN_WC3,
85 CODEC_ID_XAN_WC4,
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86 CODEC_ID_RPZA,
87 CODEC_ID_CINEPAK,
88 CODEC_ID_WS_VQA,
89 CODEC_ID_MSRLE,
90 CODEC_ID_MSVIDEO1,
4120a53a 91 CODEC_ID_IDCIN,
1dc1ed99 92 CODEC_ID_8BPS,
11e29a41 93 CODEC_ID_SMC,
42cad81a 94 CODEC_ID_FLIC,
9a4117d5 95 CODEC_ID_TRUEMOTION1,
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96 CODEC_ID_VMDVIDEO,
97 CODEC_ID_VMDAUDIO,
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98 CODEC_ID_MSZH,
99 CODEC_ID_ZLIB,
070ed1bc 100 CODEC_ID_QTRLE,
791e7b83 101 CODEC_ID_SNOW,
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102
103 /* various pcm "codecs" */
104 CODEC_ID_PCM_S16LE,
105 CODEC_ID_PCM_S16BE,
106 CODEC_ID_PCM_U16LE,
107 CODEC_ID_PCM_U16BE,
108 CODEC_ID_PCM_S8,
109 CODEC_ID_PCM_U8,
110 CODEC_ID_PCM_MULAW,
111 CODEC_ID_PCM_ALAW,
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112
113 /* various adpcm codecs */
114 CODEC_ID_ADPCM_IMA_QT,
115 CODEC_ID_ADPCM_IMA_WAV,
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116 CODEC_ID_ADPCM_IMA_DK3,
117 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 118 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 119 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 120 CODEC_ID_ADPCM_MS,
e2a7bb28 121 CODEC_ID_ADPCM_4XM,
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122 CODEC_ID_ADPCM_XA,
123 CODEC_ID_ADPCM_ADX,
7d8379f2 124 CODEC_ID_ADPCM_EA,
e5966052 125 CODEC_ID_ADPCM_G726,
891f64b3 126
127 /* AMR */
128 CODEC_ID_AMR_NB,
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129 CODEC_ID_AMR_WB,
130
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131 /* RealAudio codecs*/
132 CODEC_ID_RA_144,
133 CODEC_ID_RA_288,
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134
135 /* various DPCM codecs */
136 CODEC_ID_ROQ_DPCM,
137 CODEC_ID_INTERPLAY_DPCM,
9937e686 138 CODEC_ID_XAN_DPCM,
985180a1 139
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140 CODEC_ID_FLAC,
141
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142 CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
143 stream (only used by libavformat) */
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144
145 CODEC_ID_DTS,
1ddadfa9 146 CODEC_ID_XVID,
de6d9b64 147};
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148
149/* CODEC_ID_MP3LAME is absolete */
150#define CODEC_ID_MP3LAME CODEC_ID_MP3
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151
152enum CodecType {
4a663d80 153 CODEC_TYPE_UNKNOWN = -1,
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154 CODEC_TYPE_VIDEO,
155 CODEC_TYPE_AUDIO,
985180a1 156 CODEC_TYPE_DATA,
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157};
158
64863965 159/**
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160 * Pixel format. Notes:
161 *
162 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
163 * color is put together as:
164 * (A << 24) | (R << 16) | (G << 8) | B
165 * This is stored as BGRA on little endian CPU architectures and ARGB on
166 * big endian CPUs.
167 *
168 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
169 * image data is stored in AVFrame.data[0]. The palette is transported in
170 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
171 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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172 * also endian-specific). Note also that the individual RGB palette
173 * components stored in AVFrame.data[1] should be in the range 0..255.
174 * This is important as many custom PAL8 video codecs that were designed
175 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 176 */
de6d9b64 177enum PixelFormat {
cd394651 178 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
ebb177dd 179 PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr
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180 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
181 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
182 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
183 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 184 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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185 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
186 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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187 PIX_FMT_RGB565, ///< always stored in cpu endianness
188 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 189 PIX_FMT_GRAY8,
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190 PIX_FMT_MONOWHITE, ///< 0 is white
191 PIX_FMT_MONOBLACK, ///< 0 is black
192 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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193 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
194 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
195 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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196 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
197 PIX_FMT_XVMC_MPEG2_IDCT,
ebb177dd 198 PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1
dab64ebc 199 PIX_FMT_NB,
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200};
201
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202/* currently unused, may be used if 24/32 bits samples ever supported */
203enum SampleFormat {
64863965 204 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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205};
206
de6d9b64 207/* in bytes */
bc8d1857 208#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 209
d7425f59 210/**
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211 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
212 * this is mainly needed because some optimized bitstream readers read
213 * 32 or 64 bit at once and could read over the end<br>
214 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
215 * MPEG bitstreams could cause overread and segfault
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216 */
217#define FF_INPUT_BUFFER_PADDING_SIZE 8
218
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219/* motion estimation type, EPZS by default */
220enum Motion_Est_ID {
101bea5f 221 ME_ZERO = 1,
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222 ME_FULL,
223 ME_LOG,
224 ME_PHODS,
225 ME_EPZS,
226 ME_X1
227};
228
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229typedef struct RcOverride{
230 int start_frame;
231 int end_frame;
232 int qscale; // if this is 0 then quality_factor will be used instead
233 float quality_factor;
234} RcOverride;
235
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236/* only for ME compatiblity with old apps */
237extern int motion_estimation_method;
238
4e00e76b 239#define FF_MAX_B_FRAMES 8
9dbcbd92 240
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241/* encoding support
242 these flags can be passed in AVCodecContext.flags before initing
243 Note: note not everything is supported yet
244*/
de6d9b64 245
64863965 246#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 247#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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248#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
249#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 250#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 251#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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252/* parent program gurantees that the input for b-frame containing streams is not written to
253 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 254#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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255#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
256#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
257#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
258#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
259#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
260#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
261#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 262 of only at frame boundaries */
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263#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
264#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 265#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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266#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
267#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
268#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
269#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 270/* Fx : Flag for h263+ extra options */
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271#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
272#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 273#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 274#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 275#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 276#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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277#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
278#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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279#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
280#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 281#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 282#define CODEC_FLAG_CLOSED_GOP 0x80000000
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283/* Unsupported options :
284 * Syntax Arithmetic coding (SAC)
21e59552 285 * Reference Picture Selection
ba58dabc 286 * Independant Segment Decoding */
21e59552 287/* /Fx */
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288/* codec capabilities */
289
64863965 290#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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291/**
292 * Codec uses get_buffer() for allocating buffers.
293 * direct rendering method 1
294 */
295#define CODEC_CAP_DR1 0x0002
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296/* if 'parse_only' field is true, then avcodec_parse_frame() can be
297 used */
298#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 299#define CODEC_CAP_TRUNCATED 0x0008
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300/* codec can export data for HW decoding (XvMC) */
301#define CODEC_CAP_HWACCEL 0x0010
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302/** codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data */
303#define CODEC_CAP_DELAY 0x0020
bf89e6b1 304
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305//the following defines might change, so dont expect compatibility if u use them
306#define MB_TYPE_INTRA4x4 0x0001
307#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
308#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
309#define MB_TYPE_16x16 0x0008
310#define MB_TYPE_16x8 0x0010
311#define MB_TYPE_8x16 0x0020
312#define MB_TYPE_8x8 0x0040
313#define MB_TYPE_INTERLACED 0x0080
314#define MB_TYPE_DIRECT2 0x0100 //FIXME
315#define MB_TYPE_ACPRED 0x0200
316#define MB_TYPE_GMC 0x0400
317#define MB_TYPE_SKIP 0x0800
318#define MB_TYPE_P0L0 0x1000
319#define MB_TYPE_P1L0 0x2000
320#define MB_TYPE_P0L1 0x4000
321#define MB_TYPE_P1L1 0x8000
322#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
323#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
324#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
325#define MB_TYPE_QUANT 0x00010000
326#define MB_TYPE_CBP 0x00020000
327//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
328
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329/**
330 * Pan Scan area.
331 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
332 */
333typedef struct AVPanScan{
334 /**
335 * id.
336 * - encoding: set by user.
337 * - decoding: set by lavc
338 */
339 int id;
340
341 /**
342 * width and height in 1/16 pel
343 * - encoding: set by user.
344 * - decoding: set by lavc
345 */
346 int width;
347 int height;
348
349 /**
350 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
351 * - encoding: set by user.
352 * - decoding: set by lavc
353 */
354 int16_t position[3][2];
355}AVPanScan;
356
492cd3a9 357#define FF_COMMON_FRAME \
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358 /**\
359 * pointer to the picture planes.\
360 * this might be different from the first allocated byte\
361 * - encoding: \
362 * - decoding: \
363 */\
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364 uint8_t *data[4];\
365 int linesize[4];\
366 /**\
32db2b1d 367 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 368 * this isnt used by lavc unless the default get/release_buffer() is used\
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369 * - encoding: \
370 * - decoding: \
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371 */\
372 uint8_t *base[4];\
373 /**\
374 * 1 -> keyframe, 0-> not\
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375 * - encoding: set by lavc\
376 * - decoding: set by lavc\
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377 */\
378 int key_frame;\
379\
380 /**\
0da71265 381 * picture type of the frame, see ?_TYPE below.\
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382 * - encoding: set by lavc for coded_picture (and set by user for input)\
383 * - decoding: set by lavc\
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384 */\
385 int pict_type;\
386\
387 /**\
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388 * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
389 * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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390 * - encoding: MUST be set by user\
391 * - decoding: set by lavc\
1e491e29 392 */\
be6784dc 393 int64_t pts;\
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394\
395 /**\
396 * picture number in bitstream order.\
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397 * - encoding: set by\
398 * - decoding: set by lavc\
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399 */\
400 int coded_picture_number;\
401 /**\
1e491e29 402 * picture number in display order.\
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403 * - encoding: set by\
404 * - decoding: set by lavc\
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405 */\
406 int display_picture_number;\
407\
408 /**\
158c7f05 409 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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410 * - encoding: set by lavc for coded_picture (and set by user for input)\
411 * - decoding: set by lavc\
1e491e29 412 */\
158c7f05 413 int quality; \
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414\
415 /**\
416 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 417 * set to INT_MAX if the buffer has not been used yet \
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418 * - encoding: unused\
419 * - decoding: MUST be set by get_buffer()\
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420 */\
421 int age;\
422\
423 /**\
424 * is this picture used as reference\
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425 * - encoding: unused\
426 * - decoding: set by lavc (before get_buffer() call))\
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427 */\
428 int reference;\
429\
430 /**\
431 * QP table\
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432 * - encoding: unused\
433 * - decoding: set by lavc\
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434 */\
435 int8_t *qscale_table;\
436 /**\
437 * QP store stride\
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438 * - encoding: unused\
439 * - decoding: set by lavc\
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440 */\
441 int qstride;\
442\
443 /**\
444 * mbskip_table[mb]>=1 if MB didnt change\
445 * stride= mb_width = (width+15)>>4\
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446 * - encoding: unused\
447 * - decoding: set by lavc\
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448 */\
449 uint8_t *mbskip_table;\
450\
451 /**\
8d7ec294 452 * Motion vector table\
a4d36c11 453 * - encoding: set by user\
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454 * - decoding: set by lavc\
455 */\
456 int16_t (*motion_val[2])[2];\
457\
458 /**\
459 * Macroblock type table\
460 * mb_type_base + mb_width + 2\
a4d36c11 461 * - encoding: set by user\
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462 * - decoding: set by lavc\
463 */\
464 uint32_t *mb_type;\
465\
466 /**\
467 * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
468 * - encoding: unused\
469 * - decoding: set by lavc\
470 */\
471 uint8_t motion_subsample_log2;\
472\
473 /**\
1e491e29 474 * for some private data of the user\
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475 * - encoding: unused\
476 * - decoding: set by user\
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477 */\
478 void *opaque;\
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479\
480 /**\
481 * error\
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482 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
483 * - decoding: unused\
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484 */\
485 uint64_t error[4];\
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486\
487 /**\
488 * type of the buffer (to keep track of who has to dealloc data[*])\
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489 * - encoding: set by the one who allocs it\
490 * - decoding: set by the one who allocs it\
3db320ea 491 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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492 */\
493 int type;\
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494 \
495 /**\
496 * when decoding, this signal how much the picture must be delayed.\
497 * extra_delay = repeat_pict / (2*fps)\
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498 * - encoding: unused\
499 * - decoding: set by lavc\
2ec23b6d 500 */\
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501 int repeat_pict;\
502 \
503 /**\
504 * \
505 */\
506 int qscale_type;\
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507 \
508 /**\
509 * The content of the picture is interlaced.\
510 * - encoding: set by user\
511 * - decoding: set by lavc (default 0)\
512 */\
513 int interlaced_frame;\
514 \
515 /**\
9dad924e 516 * if the content is interlaced, is top field displayed first.\
2744ca9a 517 * - encoding: set by user\
9dad924e 518 * - decoding: set by lavc\
2744ca9a 519 */\
9dad924e 520 int top_field_first;\
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521 \
522 /**\
523 * Pan scan.\
524 * - encoding: set by user\
525 * - decoding: set by lavc\
526 */\
527 AVPanScan *pan_scan;\
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528 \
529 /**\
530 * tell user application that palette has changed from previous frame.\
531 * - encoding: ??? (no palette-enabled encoder yet)\
532 * - decoding: set by lavc (default 0)\
533 */\
534 int palette_has_changed;\
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535 \
536 /**\
537 * Codec suggestion on buffer type if != 0\
538 * - encoding: unused\
539 * - decoding: set by lavc (before get_buffer() call))\
540 */\
541 int buffer_hints;\
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542\
543 /**\
544 * DCT coeffitients\
545 * - encoding: unused\
546 * - decoding: set by lavc\
547 */\
548 short *dct_coeff;\
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549\
550 /**\
551 * Motion referece frame index\
552 * - encoding: set by user\
553 * - decoding: set by lavc\
554 */\
555 int8_t *ref_index[2];
2ec23b6d 556
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557#define FF_QSCALE_TYPE_MPEG1 0
558#define FF_QSCALE_TYPE_MPEG2 1
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559
560#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 561#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 562#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 563#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 564
1e491e29 565
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566#define FF_I_TYPE 1 // Intra
567#define FF_P_TYPE 2 // Predicted
568#define FF_B_TYPE 3 // Bi-dir predicted
569#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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570#define FF_SI_TYPE 5
571#define FF_SP_TYPE 6
1e491e29 572
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573#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
574#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
575#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
576#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
577
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578/**
579 * Audio Video Frame.
580 */
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581typedef struct AVFrame {
582 FF_COMMON_FRAME
583} AVFrame;
1e491e29 584
14bea432 585#define DEFAULT_FRAME_RATE_BASE 1001000
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586
587/**
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588 * Used by av_log
589 */
590typedef struct AVCLASS AVClass;
591struct AVCLASS {
592 const char* class_name;
593 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
594 or AVFormatContext, which begin with an AVClass.
595 Needed because av_log is in libavcodec and has no visibility
596 of AVIn/OutputFormat */
597};
598
599/**
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600 * main external api structure.
601 */
de6d9b64 602typedef struct AVCodecContext {
b71901e6 603 /**
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604 * Info on struct for av_log
605 * - set by avcodec_alloc_context
606 */
43465395 607 AVClass *av_class;
bc874dae 608 /**
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609 * the average bitrate.
610 * - encoding: set by user. unused for constant quantizer encoding
611 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 612 */
de6d9b64 613 int bit_rate;
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614
615 /**
64863965 616 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 617 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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618 * - encoding: set by user. unused for constant quantizer encoding
619 * - decoding: unused
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620 */
621 int bit_rate_tolerance;
622
623 /**
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624 * CODEC_FLAG_*.
625 * - encoding: set by user.
626 * - decoding: set by user.
b71901e6 627 */
de6d9b64 628 int flags;
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629
630 /**
631 * some codecs needs additionnal format info. It is stored here
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632 * - encoding: set by user.
633 * - decoding: set by lavc. (FIXME is this ok?)
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634 */
635 int sub_id;
636
637 /**
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638 * motion estimation algorithm used for video coding.
639 * - encoding: MUST be set by user.
640 * - decoding: unused
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641 */
642 int me_method;
643
644 /**
64863965 645 * some codecs need / can use extra-data like huffman tables.
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646 * mjpeg: huffman tables
647 * rv10: additional flags
b704e742 648 * mpeg4: global headers (they can be in the bitstream or here)
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649 * - encoding: set/allocated/freed by lavc.
650 * - decoding: set/allocated/freed by user.
b71901e6 651 */
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652 void *extradata;
653 int extradata_size;
654
de6d9b64 655 /* video only */
b71901e6 656 /**
14bea432 657 * frames per sec multiplied by frame_rate_base.
b71901e6 658 * for variable fps this is the precission, so if the timestamps
14bea432 659 * can be specified in msec precssion then this is 1000*frame_rate_base
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660 * - encoding: MUST be set by user
661 * - decoding: set by lavc. 0 or the frame_rate if available
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662 */
663 int frame_rate;
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664
665 /**
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666 * width / height.
667 * - encoding: MUST be set by user.
95831f48 668 * - decoding: set by user if known, codec should override / dynamically change if needed
b71901e6 669 */
de6d9b64 670 int width, height;
b71901e6 671
e769f053 672#define FF_ASPECT_EXTENDED 15
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673
674 /**
64863965
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675 * the number of pictures in a group of pitures, or 0 for intra_only.
676 * - encoding: set by user.
677 * - decoding: unused
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678 */
679 int gop_size;
680
681 /**
64863965 682 * pixel format, see PIX_FMT_xxx.
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683 * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
684 * conversion is in order. This only works for
685 * codecs with one supported pix_fmt, we should
686 * do something for a generic case as well.
64863965 687 * - decoding: set by lavc.
b71901e6 688 */
e4eadb4b 689 enum PixelFormat pix_fmt;
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690
691 /**
692 * Frame rate emulation. If not zero lower layer (i.e. format handler)
693 * has to read frames at native frame rate.
694 * - encoding: set by user.
695 * - decoding: unused.
696 */
697 int rate_emu;
698
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699 /**
700 * if non NULL, 'draw_horiz_band' is called by the libavcodec
701 * decoder to draw an horizontal band. It improve cache usage. Not
702 * all codecs can do that. You must check the codec capabilities
703 * before
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704 * - encoding: unused
705 * - decoding: set by user.
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706 * @param height the height of the slice
707 * @param y the y position of the slice
708 * @param type 1->top field, 2->bottom field, 3->frame
709 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 710 */
bf89e6b1 711 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 712 const AVFrame *src, int offset[4],
3bb07d61 713 int y, int type, int height);
bf89e6b1 714
de6d9b64 715 /* audio only */
64863965 716 int sample_rate; ///< samples per sec
de6d9b64 717 int channels;
64863965 718 int sample_fmt; ///< sample format, currenly unused
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719
720 /* the following data should not be initialized */
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721 int frame_size; ///< in samples, initialized when calling 'init'
722 int frame_number; ///< audio or video frame number
723 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 724
b71901e6 725 /**
b71901e6 726 * number of frames the decoded output will be delayed relative to
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727 * the encoded input.
728 * - encoding: set by lavc.
729 * - decoding: unused
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730 */
731 int delay;
1ff662cc 732
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733 /* - encoding parameters */
734 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
735 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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736
737 /**
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738 * minimum quantizer.
739 * - encoding: set by user.
740 * - decoding: unused
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741 */
742 int qmin;
743
744 /**
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745 * maximum quantizer.
746 * - encoding: set by user.
747 * - decoding: unused
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748 */
749 int qmax;
750
751 /**
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752 * maximum quantizer difference etween frames.
753 * - encoding: set by user.
754 * - decoding: unused
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755 */
756 int max_qdiff;
757
758 /**
64863965 759 * maximum number of b frames between non b frames.
b71901e6 760 * note: the output will be delayed by max_b_frames+1 relative to the input
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761 * - encoding: set by user.
762 * - decoding: unused
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763 */
764 int max_b_frames;
765
766 /**
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767 * qscale factor between ip and b frames.
768 * - encoding: set by user.
769 * - decoding: unused
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770 */
771 float b_quant_factor;
772
773 /** obsolete FIXME remove */
774 int rc_strategy;
8b4c7dbc 775 int b_frame_strategy;
9dbcbd92 776
b71901e6 777 /**
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778 * hurry up amount.
779 * - encoding: unused
780 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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781 */
782 int hurry_up;
2417652e 783
de6d9b64 784 struct AVCodec *codec;
b71901e6 785
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786 void *priv_data;
787
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788 /* unused, FIXME remove*/
789 int rtp_mode;
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790
791 int rtp_payload_size; /* The size of the RTP payload, the coder will */
792 /* do it's best to deliver a chunk with size */
793 /* below rtp_payload_size, the chunk will start */
794 /* with a start code on some codecs like H.263 */
795 /* This doesn't take account of any particular */
796 /* headers inside the transmited RTP payload */
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797
798
799 /* The RTP callcack: This function is called */
800 /* every time the encoder as a packet to send */
801 /* Depends on the encoder if the data starts */
802 /* with a Start Code (it should) H.263 does */
a7fcb3ea 803 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number);
81401c1f 804
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805 /* statistics, used for 2-pass encoding */
806 int mv_bits;
807 int header_bits;
808 int i_tex_bits;
809 int p_tex_bits;
810 int i_count;
811 int p_count;
812 int skip_count;
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813 int misc_bits;
814
815 /**
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816 * number of bits used for the previously encoded frame.
817 * - encoding: set by lavc
7004ffb3 818 * - decoding: unused
b71901e6 819 */
098eefe1 820 int frame_bits;
7004ffb3 821
b71901e6 822 /**
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823 * private data of the user, can be used to carry app specific stuff.
824 * - encoding: set by user
825 * - decoding: set by user
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826 */
827 void *opaque;
828
de6d9b64 829 char codec_name[32];
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830 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
831 enum CodecID codec_id; /* see CODEC_ID_xxx */
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832
833 /**
834 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
835 * this is used to workaround some encoder bugs
bd5a6020 836 * - encoding: set by user, if not then the default based on codec_id will be used
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837 * - decoding: set by user, will be converted to upper case by lavc during init
838 */
839 unsigned int codec_tag;
92ba5ffb 840
b71901e6 841 /**
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842 * workaround bugs in encoders which sometimes cannot be detected automatically.
843 * - encoding: unused
844 * - decoding: set by user
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845 */
846 int workaround_bugs;
64863965 847#define FF_BUG_AUTODETECT 1 ///< autodetection
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848#define FF_BUG_OLD_MSMPEG4 2
849#define FF_BUG_XVID_ILACE 4
850#define FF_BUG_UMP4 8
851#define FF_BUG_NO_PADDING 16
3116cb14 852#define FF_BUG_AMV 32
ac0c6638 853#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 854#define FF_BUG_QPEL_CHROMA 64
db794953 855#define FF_BUG_STD_QPEL 128
36df8805 856#define FF_BUG_QPEL_CHROMA2 256
c40c3482 857#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 858#define FF_BUG_EDGE 1024
b44bdf7e 859#define FF_BUG_HPEL_CHROMA 2048
4ccde216 860#define FF_BUG_DC_CLIP 4096
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861//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
862
b71901e6 863 /**
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864 * luma single coeff elimination threshold.
865 * - encoding: set by user
866 * - decoding: unused
b71901e6 867 */
1f6b6e50 868 int luma_elim_threshold;
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869
870 /**
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871 * chroma single coeff elimination threshold.
872 * - encoding: set by user
873 * - decoding: unused
b71901e6 874 */
1f6b6e50 875 int chroma_elim_threshold;
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876
877 /**
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878 * strictly follow the std (MPEG4, ...).
879 * - encoding: set by user
880 * - decoding: unused
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881 */
882 int strict_std_compliance;
883
884 /**
64863965 885 * qscale offset between ip and b frames.
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886 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
887 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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888 * - encoding: set by user.
889 * - decoding: unused
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890 */
891 float b_quant_offset;
892
893 /**
ce3bcaed 894 * error resilience higher values will detect more errors but may missdetect
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895 * some more or less valid parts as errors.
896 * - encoding: unused
897 * - decoding: set by user
b71901e6 898 */
1f6b6e50 899 int error_resilience;
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900#define FF_ER_CAREFULL 1
901#define FF_ER_COMPLIANT 2
902#define FF_ER_AGGRESSIVE 3
903#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 904
6b72ac63 905 /**
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906 * called at the beginning of each frame to get a buffer for it.
907 * if pic.reference is set then the frame will be read later by lavc
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908 * avcodec_align_dimensions() should be used to find the required width and
909 * height, as they normally need to be rounded up to the next multiple of 16
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910 * - encoding: unused
911 * - decoding: set by lavc, user can override
b71901e6 912 */
492cd3a9 913 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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914
915 /**
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916 * called to release buffers which where allocated with get_buffer.
917 * a released buffer can be reused in get_buffer()
918 * pic.data[*] must be set to NULL
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919 * - encoding: unused
920 * - decoding: set by lavc, user can override
b71901e6 921 */
492cd3a9 922 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 923
b71901e6 924 /**
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925 * if 1 the stream has a 1 frame delay during decoding.
926 * - encoding: set by lavc
64863965 927 * - decoding: set by lavc
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928 */
929 int has_b_frames;
b71901e6 930
64863965 931 int block_align; ///< used by some WAV based audio codecs
ce980a95 932
64863965 933 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
934 (function avcodec_parse_frame()). The frame
935 data is returned. Only MPEG codecs support this now. */
ce980a95 936
b71901e6 937 /**
e4eadb4b 938 * 0-> h263 quant 1-> mpeg quant.
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939 * - encoding: set by user.
940 * - decoding: unused
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941 */
942 int mpeg_quant;
ce980a95 943
b71901e6 944 /**
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945 * pass1 encoding statistics output buffer.
946 * - encoding: set by lavc
947 * - decoding: unused
b71901e6 948 */
64863965 949 char *stats_out;
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950
951 /**
952 * pass2 encoding statistics input buffer.
953 * concatenated stuff from stats_out of pass1 should be placed here
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954 * - encoding: allocated/set/freed by user
955 * - decoding: unused
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956 */
957 char *stats_in;
958
959 /**
64863965 960 * ratecontrol qmin qmax limiting method.
b71901e6 961 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
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962 * - encoding: set by user.
963 * - decoding: unused
b71901e6 964 */
ce980a95 965 float rc_qsquish;
b71901e6 966
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967 float rc_qmod_amp;
968 int rc_qmod_freq;
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969
970 /**
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971 * ratecontrol override, see RcOverride.
972 * - encoding: allocated/set/freed by user.
973 * - decoding: unused
b71901e6 974 */
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975 RcOverride *rc_override;
976 int rc_override_count;
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MN
977
978 /**
64863965
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979 * rate control equation.
980 * - encoding: set by user
981 * - decoding: unused
b71901e6 982 */
ce980a95 983 char *rc_eq;
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984
985 /**
64863965
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986 * maximum bitrate.
987 * - encoding: set by user.
988 * - decoding: unused
b71901e6 989 */
ce980a95 990 int rc_max_rate;
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991
992 /**
64863965
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993 * minimum bitrate.
994 * - encoding: set by user.
995 * - decoding: unused
b71901e6 996 */
ce980a95 997 int rc_min_rate;
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998
999 /**
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1000 * decoder bitstream buffer size.
1001 * - encoding: set by user.
1002 * - decoding: unused
b71901e6 1003 */
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1004 int rc_buffer_size;
1005 float rc_buffer_aggressivity;
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1006
1007 /**
64863965 1008 * qscale factor between p and i frames.
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1009 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1010 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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1011 * - encoding: set by user.
1012 * - decoding: unused
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1013 */
1014 float i_quant_factor;
1015
1016 /**
64863965 1017 * qscale offset between p and i frames.
64863965
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1018 * - encoding: set by user.
1019 * - decoding: unused
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1020 */
1021 float i_quant_offset;
1022
1023 /**
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1024 * initial complexity for pass1 ratecontrol.
1025 * - encoding: set by user.
1026 * - decoding: unused
b71901e6 1027 */
ce980a95 1028 float rc_initial_cplx;
917e06c8 1029
b71901e6 1030 /**
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1031 * dct algorithm, see FF_DCT_* below.
1032 * - encoding: set by user
1033 * - decoding: unused
b71901e6 1034 */
28db7fce 1035 int dct_algo;
c7e07931 1036#define FF_DCT_AUTO 0
28db7fce 1037#define FF_DCT_FASTINT 1
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1038#define FF_DCT_INT 2
1039#define FF_DCT_MMX 3
1040#define FF_DCT_MLIB 4
05c4072b 1041#define FF_DCT_ALTIVEC 5
65e4c8c9 1042#define FF_DCT_FAAN 6
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1043
1044 /**
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1045 * luminance masking (0-> disabled).
1046 * - encoding: set by user
1047 * - decoding: unused
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1048 */
1049 float lumi_masking;
1050
1051 /**
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1052 * temporary complexity masking (0-> disabled).
1053 * - encoding: set by user
1054 * - decoding: unused
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1055 */
1056 float temporal_cplx_masking;
1057
1058 /**
64863965
MN
1059 * spatial complexity masking (0-> disabled).
1060 * - encoding: set by user
1061 * - decoding: unused
c5d309f2
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1062 */
1063 float spatial_cplx_masking;
1064
1065 /**
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MN
1066 * p block masking (0-> disabled).
1067 * - encoding: set by user
1068 * - decoding: unused
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1069 */
1070 float p_masking;
15415af4 1071
5e746b99 1072 /**
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MN
1073 * darkness masking (0-> disabled).
1074 * - encoding: set by user
1075 * - decoding: unused
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1076 */
1077 float dark_masking;
0c2dd16e 1078
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1079
1080 /* for binary compatibility */
1081 int unused;
1082
0c2dd16e 1083 /**
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1084 * idct algorithm, see FF_IDCT_* below.
1085 * - encoding: set by user
1086 * - decoding: set by user
2ad1516a
MN
1087 */
1088 int idct_algo;
1089#define FF_IDCT_AUTO 0
1090#define FF_IDCT_INT 1
1091#define FF_IDCT_SIMPLE 2
1092#define FF_IDCT_SIMPLEMMX 3
1093#define FF_IDCT_LIBMPEG2MMX 4
1094#define FF_IDCT_PS2 5
1095#define FF_IDCT_MLIB 6
1096#define FF_IDCT_ARM 7
05c4072b 1097#define FF_IDCT_ALTIVEC 8
b82cdc72 1098#define FF_IDCT_SH4 9
bd7d1ea7 1099#define FF_IDCT_SIMPLEARM 10
2ad1516a 1100
144f0625 1101 /**
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1102 * slice count.
1103 * - encoding: set by lavc
1104 * - decoding: set by user (or 0)
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1105 */
1106 int slice_count;
1107 /**
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1108 * slice offsets in the frame in bytes.
1109 * - encoding: set/allocated by lavc
1110 * - decoding: set/allocated by user (or NULL)
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1111 */
1112 int *slice_offset;
1113
4d2858de 1114 /**
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1115 * error concealment flags.
1116 * - encoding: unused
1117 * - decoding: set by user
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1118 */
1119 int error_concealment;
1120#define FF_EC_GUESS_MVS 1
1121#define FF_EC_DEBLOCK 2
1122
6b72ac63 1123 /**
bec89a84 1124 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1125 * CPU features (i.e. MMX, SSE. ...)
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1126 *
1127 * with FORCE flag you may instead enable given CPU features
1128 * (Dangerous: usable in case of misdetection, improper usage however will
1129 * result into program crash)
1130 */
1131 unsigned dsp_mask;
1132#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1133 /* lower 16 bits - CPU features */
1134#ifdef HAVE_MMX
1135#define FF_MM_MMX 0x0001 /* standard MMX */
1136#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1137#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1138#define FF_MM_SSE 0x0008 /* SSE functions */
1139#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1140#endif /* HAVE_MMX */
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1141
1142 /**
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1143 * bits per sample/pixel from the demuxer (needed for huffyuv).
1144 * - encoding: set by lavc
1145 * - decoding: set by user
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1146 */
1147 int bits_per_sample;
1148
1149 /**
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1150 * prediction method (needed for huffyuv).
1151 * - encoding: set by user
1152 * - decoding: unused
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1153 */
1154 int prediction_method;
1155#define FF_PRED_LEFT 0
1156#define FF_PRED_PLANE 1
1157#define FF_PRED_MEDIAN 2
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1158
1159 /**
5ff85f1d 1160 * sample aspect ratio (0 if unknown).
1f26c6f3 1161 * numerator and denominator must be relative prime and smaller then 256 for some video standards
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1162 * - encoding: set by user.
1163 * - decoding: set by lavc.
5d3cea3a 1164 */
5ff85f1d 1165 AVRational sample_aspect_ratio;
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1166
1167 /**
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1168 * the picture in the bitstream.
1169 * - encoding: set by lavc
1170 * - decoding: set by lavc
1e491e29 1171 */
492cd3a9 1172 AVFrame *coded_frame;
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1173
1174 /**
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1175 * debug.
1176 * - encoding: set by user.
1177 * - decoding: set by user.
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1178 */
1179 int debug;
1180#define FF_DEBUG_PICT_INFO 1
1181#define FF_DEBUG_RC 2
1182#define FF_DEBUG_BITSTREAM 4
1183#define FF_DEBUG_MB_TYPE 8
1184#define FF_DEBUG_QP 16
1185#define FF_DEBUG_MV 32
8289c6fa 1186#define FF_DEBUG_DCT_COEFF 0x00000040
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1187#define FF_DEBUG_SKIP 0x00000080
1188#define FF_DEBUG_STARTCODE 0x00000100
1189#define FF_DEBUG_PTS 0x00000200
46b4feec 1190#define FF_DEBUG_ER 0x00000400
0da71265 1191#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1192#define FF_DEBUG_BUGS 0x00001000
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1193#define FF_DEBUG_VIS_QP 0x00002000
1194#define FF_DEBUG_VIS_MB_TYPE 0x00004000
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1195
1196 /**
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1197 * debug.
1198 * - encoding: set by user.
1199 * - decoding: set by user.
1200 */
1201 int debug_mv;
1202#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1203#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1204#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1205
1206 /**
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1207 * error.
1208 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1209 * - decoding: unused
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1210 */
1211 uint64_t error[4];
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1212
1213 /**
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1214 * minimum MB quantizer.
1215 * - encoding: set by user.
1216 * - decoding: unused
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1217 */
1218 int mb_qmin;
1219
1220 /**
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1221 * maximum MB quantizer.
1222 * - encoding: set by user.
1223 * - decoding: unused
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1224 */
1225 int mb_qmax;
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1226
1227 /**
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1228 * motion estimation compare function.
1229 * - encoding: set by user.
1230 * - decoding: unused
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1231 */
1232 int me_cmp;
1233 /**
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1234 * subpixel motion estimation compare function.
1235 * - encoding: set by user.
1236 * - decoding: unused
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1237 */
1238 int me_sub_cmp;
1239 /**
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1240 * macroblock compare function (not supported yet).
1241 * - encoding: set by user.
1242 * - decoding: unused
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1243 */
1244 int mb_cmp;
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1245 /**
1246 * interlaced dct compare function
1247 * - encoding: set by user.
1248 * - decoding: unused
1249 */
1250 int ildct_cmp;
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1251#define FF_CMP_SAD 0
1252#define FF_CMP_SSE 1
1253#define FF_CMP_SATD 2
1254#define FF_CMP_DCT 3
1255#define FF_CMP_PSNR 4
1256#define FF_CMP_BIT 5
1257#define FF_CMP_RD 6
1258#define FF_CMP_ZERO 7
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1259#define FF_CMP_VSAD 8
1260#define FF_CMP_VSSE 9
e6a2ac34 1261#define FF_CMP_NSSE 10
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1262#define FF_CMP_CHROMA 256
1263
1264 /**
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1265 * ME diamond size & shape.
1266 * - encoding: set by user.
1267 * - decoding: unused
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1268 */
1269 int dia_size;
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1270
1271 /**
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1272 * amount of previous MV predictors (2a+1 x 2a+1 square).
1273 * - encoding: set by user.
1274 * - decoding: unused
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1275 */
1276 int last_predictor_count;
70ac76c0 1277
f5fb6b34 1278 /**
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1279 * pre pass for motion estimation.
1280 * - encoding: set by user.
1281 * - decoding: unused
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1282 */
1283 int pre_me;
b07a5980 1284
70ac76c0 1285 /**
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1286 * motion estimation pre pass compare function.
1287 * - encoding: set by user.
1288 * - decoding: unused
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1289 */
1290 int me_pre_cmp;
826f429a 1291
70ac76c0 1292 /**
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1293 * ME pre pass diamond size & shape.
1294 * - encoding: set by user.
1295 * - decoding: unused
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1296 */
1297 int pre_dia_size;
1298
826f429a 1299 /**
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1300 * subpel ME quality.
1301 * - encoding: set by user.
1302 * - decoding: unused
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1303 */
1304 int me_subpel_quality;
1305
a33c7159 1306 /**
64863965 1307 * callback to negotiate the pixelFormat.
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1308 * @param fmt is the list of formats which are supported by the codec,
1309 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1310 * the first is allways the native one
1311 * @return the choosen format
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1312 * - encoding: unused
1313 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1314 */
494c56d3 1315 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
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1316
1317 /**
1318 * DTG active format information (additionnal aspect ratio
1319 * information only used in DVB MPEG2 transport streams). 0 if
1320 * not set.
1321 *
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1322 * - encoding: unused.
1323 * - decoding: set by decoder
e2f9490e
FB
1324 */
1325 int dtg_active_format;
1326#define FF_DTG_AFD_SAME 8
1327#define FF_DTG_AFD_4_3 9
1328#define FF_DTG_AFD_16_9 10
1329#define FF_DTG_AFD_14_9 11
1330#define FF_DTG_AFD_4_3_SP_14_9 13
1331#define FF_DTG_AFD_16_9_SP_14_9 14
1332#define FF_DTG_AFD_SP_4_3 15
1333
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1334 /**
1335 * Maximum motion estimation search range in subpel units.
1336 * if 0 then no limit
1337 *
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1338 * - encoding: set by user.
1339 * - decoding: unused.
ebbcdc9a 1340 */
59e0ac8e 1341 int me_range;
ebbcdc9a 1342
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1343 /**
1344 * frame_rate_base.
1345 * for variable fps this is 1
1346 * - encoding: set by user.
1347 * - decoding: set by lavc.
1348 * @todo move this after frame_rate
1349 */
65f7062d 1350
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1351 int frame_rate_base;
1352 /**
1353 * intra quantizer bias.
1354 * - encoding: set by user.
1355 * - decoding: unused
1356 */
1357 int intra_quant_bias;
1358#define FF_DEFAULT_QUANT_BIAS 999999
1359
1360 /**
1361 * inter quantizer bias.
1362 * - encoding: set by user.
1363 * - decoding: unused
1364 */
1365 int inter_quant_bias;
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1366
1367 /**
1368 * color table ID.
1369 * - encoding: unused.
1370 * - decoding: which clrtable should be used for 8bit RGB images
1371 * table have to be stored somewhere FIXME
1372 */
1373 int color_table_id;
1984f635 1374
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1375 /**
1376 * internal_buffer count.
1377 * Dont touch, used by lavc default_get_buffer()
1378 */
1379 int internal_buffer_count;
1380
1381 /**
1382 * internal_buffers.
1383 * Dont touch, used by lavc default_get_buffer()
1384 */
1385 void *internal_buffer;
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1386
1387#define FF_LAMBDA_SHIFT 7
1388#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1389#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1390#define FF_LAMBDA_MAX (256*128-1)
1391
1392#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
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1393 /**
1394 * global quality for codecs which cannot change it per frame.
1395 * this should be proportional to MPEG1/2/4 qscale.
1396 * - encoding: set by user.
1397 * - decoding: unused
1398 */
1399 int global_quality;
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1400
1401#define FF_CODER_TYPE_VLC 0
1402#define FF_CODER_TYPE_AC 1
1403 /**
1404 * coder type
1405 * - encoding: set by user.
1406 * - decoding: unused
1407 */
1408 int coder_type;
1409
1410 /**
1411 * context model
1412 * - encoding: set by user.
1413 * - decoding: unused
1414 */
1415 int context_model;
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1416
1417 /**
1418 * slice flags
1419 * - encoding: unused
1420 * - decoding: set by user.
1421 */
1422 int slice_flags;
1423#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1424#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1425#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1426
fb364ada
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1427 /**
1428 * XVideo Motion Acceleration
1429 * - encoding: forbidden
1430 * - decoding: set by decoder
1431 */
1432 int xvmc_acceleration;
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1433
1434 /**
1435 * macroblock decision mode
1436 * - encoding: set by user.
1437 * - decoding: unused
1438 */
1439 int mb_decision;
1440#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1441#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1442#define FF_MB_DECISION_RD 2 ///< rate distoration
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1443
1444 /**
1445 * custom intra quantization matrix
1446 * - encoding: set by user, can be NULL
1447 * - decoding: set by lavc
1448 */
1449 uint16_t *intra_matrix;
1450
1451 /**
1452 * custom inter quantization matrix
1453 * - encoding: set by user, can be NULL
1454 * - decoding: set by lavc
1455 */
1456 uint16_t *inter_matrix;
7d1c3fc1 1457
541ae140
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1458 /**
1459 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1460 * this is used to workaround some encoder bugs
1461 * - encoding: unused
1462 * - decoding: set by user, will be converted to upper case by lavc during init
1463 */
1464 unsigned int stream_codec_tag;
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1465
1466 /**
1467 * scene change detection threshold.
1468 * 0 is default, larger means fewer detected scene changes
1469 * - encoding: set by user.
1470 * - decoding: unused
1471 */
1472 int scenechange_threshold;
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1473
1474 /**
1475 * minimum lagrange multipler
1476 * - encoding: set by user.
1477 * - decoding: unused
1478 */
1479 int lmin;
1480
1481 /**
1482 * maximum lagrange multipler
1483 * - encoding: set by user.
1484 * - decoding: unused
1485 */
1486 int lmax;
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1487
1488 /**
1489 * Palette control structure
1490 * - encoding: ??? (no palette-enabled encoder yet)
1491 * - decoding: set by user.
1492 */
1493 struct AVPaletteControl *palctrl;
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1494
1495 /**
1496 * noise reduction strength
1497 * - encoding: set by user.
1498 * - decoding: unused
1499 */
1500 int noise_reduction;
fa384dcc 1501
074c4ca7 1502 /**
e1c2a5a0
RT
1503 * called at the beginning of a frame to get cr buffer for it.
1504 * buffer type (size, hints) must be the same. lavc won't check it.
1505 * lavc will pass previous buffer in pic, function should return
1506 * same buffer or new buffer with old frame "painted" into it.
1507 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1508 * - encoding: unused
e1c2a5a0 1509 * - decoding: set by lavc, user can override
074c4ca7 1510 */
e1c2a5a0 1511 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
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1512
1513 /**
1514 * number of bits which should be loaded into the rc buffer before decoding starts
1515 * - encoding: set by user.
1516 * - decoding: unused
1517 */
1518 int rc_initial_buffer_occupancy;
1519
1520 /**
1521 *
1522 * - encoding: set by user.
1523 * - decoding: unused
1524 */
1525 int inter_threshold;
1526
1527 /**
1528 * CODEC_FLAG2_*.
1529 * - encoding: set by user.
1530 * - decoding: set by user.
1531 */
1532 int flags2;
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1533
1534 /**
1535 * simulates errors in the bitstream to test error concealment.
1536 * - encoding: set by user.
1537 * - decoding: unused.
1538 */
1539 int error_rate;
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1540
1541 /**
1542 * MP3 antialias algorithm, see FF_AA_* below.
1543 * - encoding: unused
1544 * - decoding: set by user
1545 */
1546 int antialias_algo;
1547#define FF_AA_AUTO 0
1548#define FF_AA_FASTINT 1 //not implemented yet
1549#define FF_AA_INT 2
1550#define FF_AA_FLOAT 3
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1551 /**
1552 * Quantizer noise shaping.
1553 * - encoding: set by user
1554 * - decoding: unused
1555 */
1556 int quantizer_noise_shaping;
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1557
1558 /**
1559 * Thread count.
1560 * is used to decide how many independant tasks should be passed to execute()
1561 * - encoding: set by user
1562 * - decoding: set by user
1563 */
1564 int thread_count;
1565
1566 /**
1567 * the codec may call this to execute several independant things. it will return only after
1568 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1569 * default implementation will execute the parts serially
399cec2f 1570 * @param count the number of things to execute
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1571 * - encoding: set by lavc, user can override
1572 * - decoding: set by lavc, user can override
1573 */
1574 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1575
1576 /**
1577 * Thread opaque.
1578 * can be used by execute() to store some per AVCodecContext stuff.
1579 * - encoding: set by execute()
1580 * - decoding: set by execute()
1581 */
1582 void *thread_opaque;
a4d36c11
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1583
1584 /**
f20f8a8b
MN
1585 * Motion estimation threshold. under which no motion estimation is
1586 * performed, but instead the user specified motion vectors are used
a4d36c11
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1587 *
1588 * - encoding: set by user
f20f8a8b 1589 * - decoding: unused
a4d36c11 1590 */
2750b827 1591 int me_threshold;
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1592
1593 /**
1594 * Macroblock threshold. under which the user specified macroblock types will be used
1595 * - encoding: set by user
1596 * - decoding: unused
1597 */
1598 int mb_threshold;
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1599
1600 /**
d4c5d2ad 1601 * precision of the intra dc coefficient - 8.
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1602 * - encoding: set by user
1603 * - decoding: unused
1604 */
1605 int intra_dc_precision;
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1606
1607 /**
1608 * noise vs. sse weight for the nsse comparsion function.
1609 * - encoding: set by user
1610 * - decoding: unused
1611 */
1612 int nsse_weight;
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1613
1614 /**
1615 * number of macroblock rows at the top which are skiped.
1616 * - encoding: unused
1617 * - decoding: set by user
1618 */
1619 int skip_top;
1620
1621 /**
1622 * number of macroblock rows at the bottom which are skiped.
1623 * - encoding: unused
1624 * - decoding: set by user
1625 */
1626 int skip_bottom;
de6d9b64
FB
1627} AVCodecContext;
1628
97d96aaa 1629
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1630/**
1631 * AVOption.
1632 */
97d96aaa
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1633typedef struct AVOption {
1634 /** options' name */
1635 const char *name; /* if name is NULL, it indicates a link to next */
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1636 /** short English text help or const struct AVOption* subpointer */
1637 const char *help; // const struct AVOption* sub;
97d96aaa
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1638 /** offset to context structure where the parsed value should be stored */
1639 int offset;
1640 /** options' type */
1641 int type;
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1642#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1643#define FF_OPT_TYPE_DOUBLE 2 ///< double
1644#define FF_OPT_TYPE_INT 3 ///< integer
1645#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1646#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
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1647//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1648#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1649#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1650 /** min value (min == max -> no limits) */
1651 double min;
1652 /** maximum value for double/int */
1653 double max;
1654 /** default boo [0,1]l/double/int value */
1655 double defval;
1656 /**
1657 * default string value (with optional semicolon delimited extra option-list
1658 * i.e. option1;option2;option3
1659 * defval might select other then first argument as default
1660 */
1661 const char *defstr;
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1662#define FF_OPT_MAX_DEPTH 10
1663} AVOption;
1664
64863965 1665/**
bec89a84
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1666 * Parse option(s) and sets fields in passed structure
1667 * @param strct structure where the parsed results will be written
1668 * @param list list with AVOptions
1669 * @param opts string with options for parsing
1670 */
1671int avoption_parse(void* strct, const AVOption* list, const char* opts);
1672
1673
1674/**
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1675 * AVCodec.
1676 */
de6d9b64 1677typedef struct AVCodec {
18f77016 1678 const char *name;
5d234974 1679 enum CodecType type;
de6d9b64
FB
1680 int id;
1681 int priv_data_size;
1682 int (*init)(AVCodecContext *);
0c1a9eda 1683 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1684 int (*close)(AVCodecContext *);
0fd90455 1685 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1686 uint8_t *buf, int buf_size);
bf89e6b1 1687 int capabilities;
97d96aaa 1688 const AVOption *options;
de6d9b64 1689 struct AVCodec *next;
7a06ff14 1690 void (*flush)(AVCodecContext *);
b0df362b 1691 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1692 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1693} AVCodec;
1694
97d96aaa 1695/**
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1696 * four components are given, that's all.
1697 * the last component is alpha
1698 */
de6d9b64 1699typedef struct AVPicture {
0c1a9eda 1700 uint8_t *data[4];
cd394651 1701 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1702} AVPicture;
1703
ba118447
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1704/**
1705 * AVPaletteControl
1706 * This structure defines a method for communicating palette changes
1707 * between and demuxer and a decoder.
1708 */
2e99641b 1709#define AVPALETTE_SIZE 1024
432d84c3 1710#define AVPALETTE_COUNT 256
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MM
1711typedef struct AVPaletteControl {
1712
1713 /* demuxer sets this to 1 to indicate the palette has changed;
1714 * decoder resets to 0 */
1715 int palette_changed;
1716
2a2bbcb0
MM
1717 /* 4-byte ARGB palette entries, stored in native byte order; note that
1718 * the individual palette components should be on a 8-bit scale; if
1719 * the palette data comes from a IBM VGA native format, the component
1720 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1721 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1722
1723} AVPaletteControl;
1724
de6d9b64
FB
1725extern AVCodec ac3_encoder;
1726extern AVCodec mp2_encoder;
9d36bdc9 1727extern AVCodec mp3lame_encoder;
81e0d0b4 1728extern AVCodec oggvorbis_encoder;
29d48296 1729extern AVCodec faac_encoder;
1ddadfa9 1730extern AVCodec xvid_encoder;
de6d9b64 1731extern AVCodec mpeg1video_encoder;
029911d1 1732extern AVCodec mpeg2video_encoder;
de6d9b64
FB
1733extern AVCodec h263_encoder;
1734extern AVCodec h263p_encoder;
d4f5d74a 1735extern AVCodec flv_encoder;
de6d9b64 1736extern AVCodec rv10_encoder;
68b94c35 1737extern AVCodec rv20_encoder;
6faa4645 1738extern AVCodec dvvideo_encoder;
de6d9b64 1739extern AVCodec mjpeg_encoder;
b1e6b355 1740extern AVCodec ljpeg_encoder;
bf89e6b1 1741extern AVCodec mpeg4_encoder;
84afee34
MN
1742extern AVCodec msmpeg4v1_encoder;
1743extern AVCodec msmpeg4v2_encoder;
1744extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1745extern AVCodec wmv1_encoder;
1746extern AVCodec wmv2_encoder;
11f18faf 1747extern AVCodec huffyuv_encoder;
0da71265 1748extern AVCodec h264_encoder;
3d2e8cce 1749extern AVCodec asv1_encoder;
9b56edf5 1750extern AVCodec asv2_encoder;
be3564ed 1751extern AVCodec vcr1_encoder;
5e20f836 1752extern AVCodec ffv1_encoder;
791e7b83 1753extern AVCodec snow_encoder;
c3bf0288 1754extern AVCodec mdec_encoder;
a273bbfb 1755extern AVCodec zlib_encoder;
3b64893d 1756extern AVCodec svq1_encoder;
de6d9b64
FB
1757
1758extern AVCodec h263_decoder;
c6148de2 1759extern AVCodec h261_decoder;
bf89e6b1 1760extern AVCodec mpeg4_decoder;
84afee34
MN
1761extern AVCodec msmpeg4v1_decoder;
1762extern AVCodec msmpeg4v2_decoder;
1763extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1764extern AVCodec wmv1_decoder;
0151a6f5 1765extern AVCodec wmv2_decoder;
922bc38d
MN
1766extern AVCodec mpeg1video_decoder;
1767extern AVCodec mpeg2video_decoder;
c512b303 1768extern AVCodec mpegvideo_decoder;
fb364ada 1769extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1770extern AVCodec h263i_decoder;
d4f5d74a 1771extern AVCodec flv_decoder;
de6d9b64 1772extern AVCodec rv10_decoder;
68b94c35 1773extern AVCodec rv20_decoder;
be8ffec9 1774extern AVCodec svq1_decoder;
8b82a956 1775extern AVCodec svq3_decoder;
020fcc94 1776extern AVCodec dvvideo_decoder;
bc8d1857
FB
1777extern AVCodec wmav1_decoder;
1778extern AVCodec wmav2_decoder;
4e66ab3b 1779extern AVCodec mjpeg_decoder;
b135d9fb 1780extern AVCodec mjpegb_decoder;
5e83dec4 1781extern AVCodec sp5x_decoder;
4b1f4f23 1782extern AVCodec mp2_decoder;
a96b68b7 1783extern AVCodec mp3_decoder;
3f95e843
FR
1784extern AVCodec mace3_decoder;
1785extern AVCodec mace6_decoder;
11f18faf 1786extern AVCodec huffyuv_decoder;
3aca208a 1787extern AVCodec oggvorbis_decoder;
f70f7c6d 1788extern AVCodec cyuv_decoder;
0da71265 1789extern AVCodec h264_decoder;
deabd4fd 1790extern AVCodec indeo3_decoder;
d86053a4 1791extern AVCodec vp3_decoder;
f44ee2c3 1792extern AVCodec theora_decoder;
891f64b3 1793extern AVCodec amr_nb_decoder;
bc634f6f 1794extern AVCodec amr_nb_encoder;
d663a1fd
MN
1795extern AVCodec amr_wb_encoder;
1796extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1797extern AVCodec aac_decoder;
1798extern AVCodec mpeg4aac_decoder;
3d2e8cce 1799extern AVCodec asv1_decoder;
9b56edf5 1800extern AVCodec asv2_decoder;
be3564ed 1801extern AVCodec vcr1_decoder;
3aff069b 1802extern AVCodec cljr_decoder;
5e20f836 1803extern AVCodec ffv1_decoder;
791e7b83 1804extern AVCodec snow_decoder;
8809cfee 1805extern AVCodec fourxm_decoder;
c3bf0288 1806extern AVCodec mdec_decoder;
3ef8be2b
MM
1807extern AVCodec roq_decoder;
1808extern AVCodec interplay_video_decoder;
9937e686 1809extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1810extern AVCodec rpza_decoder;
1811extern AVCodec cinepak_decoder;
1812extern AVCodec msrle_decoder;
1813extern AVCodec msvideo1_decoder;
6955a882 1814extern AVCodec vqa_decoder;
4120a53a 1815extern AVCodec idcin_decoder;
1dc1ed99 1816extern AVCodec eightbps_decoder;
11e29a41 1817extern AVCodec smc_decoder;
42cad81a 1818extern AVCodec flic_decoder;
fafa0b75
MM
1819extern AVCodec vmdvideo_decoder;
1820extern AVCodec vmdaudio_decoder;
9a4117d5 1821extern AVCodec truemotion1_decoder;
a273bbfb
RT
1822extern AVCodec mszh_decoder;
1823extern AVCodec zlib_decoder;
b8414bbd
NK
1824extern AVCodec ra_144_decoder;
1825extern AVCodec ra_288_decoder;
3ef8be2b
MM
1826extern AVCodec roq_dpcm_decoder;
1827extern AVCodec interplay_dpcm_decoder;
9937e686 1828extern AVCodec xan_dpcm_decoder;
070ed1bc 1829extern AVCodec qtrle_decoder;
ac2570a8 1830extern AVCodec flac_decoder;
de6d9b64 1831
a96b68b7
FB
1832/* pcm codecs */
1833#define PCM_CODEC(id, name) \
1834extern AVCodec name ## _decoder; \
f11d3f23 1835extern AVCodec name ## _encoder
a96b68b7
FB
1836
1837PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1838PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1839PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1840PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1841PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1842PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1843PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1844PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1845
0147f198
FR
1846/* adpcm codecs */
1847
1848PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1849PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
1850PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1851PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 1852PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 1853PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 1854PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 1855PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
1856PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1857PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 1858PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 1859PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
0147f198 1860
a96b68b7
FB
1861#undef PCM_CODEC
1862
1863/* dummy raw video codec */
63167088
RS
1864extern AVCodec rawvideo_encoder;
1865extern AVCodec rawvideo_decoder;
de6d9b64
FB
1866
1867/* the following codecs use external GPL libs */
de6d9b64 1868extern AVCodec ac3_decoder;
23c99253 1869extern AVCodec dts_decoder;
de6d9b64
FB
1870
1871/* resample.c */
1872
1873struct ReSampleContext;
aaaf1635 1874struct AVResampleContext;
de6d9b64
FB
1875
1876typedef struct ReSampleContext ReSampleContext;
1877
1878ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1879 int output_rate, int input_rate);
1880int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1881void audio_resample_close(ReSampleContext *s);
1882
aaaf1635
MN
1883struct AVResampleContext *av_resample_init(int out_rate, int in_rate);
1884int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 1885void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 1886void av_resample_close(struct AVResampleContext *c);
aaaf1635 1887
de6d9b64
FB
1888/* YUV420 format is assumed ! */
1889
1890struct ImgReSampleContext;
1891
1892typedef struct ImgReSampleContext ImgReSampleContext;
1893
1894ImgReSampleContext *img_resample_init(int output_width, int output_height,
1895 int input_width, int input_height);
ab6d194a
MN
1896
1897ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1898 int iwidth, int iheight,
1899 int topBand, int bottomBand,
1ff93ffc
TK
1900 int leftBand, int rightBand,
1901 int padtop, int padbottom,
1902 int padleft, int padright);
1903
ab6d194a 1904
de6d9b64 1905void img_resample(ImgReSampleContext *s,
da64ecc3 1906 AVPicture *output, const AVPicture *input);
de6d9b64
FB
1907
1908void img_resample_close(ImgReSampleContext *s);
1909
75917b88
DH
1910/**
1911 * Allocate memory for a picture. Call avpicture_free to free it.
1912 *
1913 * @param picture the picture to be filled in.
1914 * @param pix_fmt the format of the picture.
1915 * @param width the width of the picture.
1916 * @param height the height of the picture.
1917 * @return 0 if successful, -1 if not.
1918 */
1919int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1920
1921/* Free a picture previously allocated by avpicture_alloc. */
1922void avpicture_free(AVPicture *picture);
1923
0c1a9eda 1924int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1925 int pix_fmt, int width, int height);
da64ecc3 1926int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 1927 unsigned char *dest, int dest_size);
219b06c6 1928int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
1929void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1930const char *avcodec_get_pix_fmt_name(int pix_fmt);
63167088 1931enum PixelFormat avcodec_get_pix_fmt(const char* name);
219b06c6 1932
fab21997
FB
1933#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
1934#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
1935#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
1936#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
1937#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
1938#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1939
1940int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1941 int has_alpha);
1942int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1943 int has_alpha, int *loss_ptr);
1944
0469baf1
FB
1945#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
1946#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
1947int img_get_alpha_info(const AVPicture *src,
1948 int pix_fmt, int width, int height);
0469baf1 1949
219b06c6
FB
1950/* convert among pixel formats */
1951int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 1952 const AVPicture *src, int pix_fmt,
219b06c6
FB
1953 int width, int height);
1954
1955/* deinterlace a picture */
da64ecc3 1956int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
1957 int pix_fmt, int width, int height);
1958
1959/* external high level API */
1960
1961extern AVCodec *first_avcodec;
1962
156e5023 1963/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1964unsigned avcodec_version(void);
8bceb6af 1965/* returns LIBAVCODEC_BUILD constant */
51a49663 1966unsigned avcodec_build(void);
de6d9b64
FB
1967void avcodec_init(void);
1968
1969void register_avcodec(AVCodec *format);
1970AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1971AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
1972AVCodec *avcodec_find_decoder(enum CodecID id);
1973AVCodec *avcodec_find_decoder_by_name(const char *name);
1974void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1975
1e491e29 1976void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1977AVCodecContext *avcodec_alloc_context(void);
7906085f 1978void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 1979AVFrame *avcodec_alloc_frame(void);
1e491e29 1980
492cd3a9
MN
1981int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1982void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
1983int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
1984void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
1985enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 1986
5a815088
MN
1987int avcodec_thread_init(AVCodecContext *s, int thread_count);
1988void avcodec_thread_free(AVCodecContext *s);
1989int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 1990int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
1991//FIXME func typedef
1992
7a06ff14
MN
1993/**
1994 * opens / inits the AVCodecContext.
1995 * not thread save!
1996 */
de6d9b64 1997int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 1998
0c1a9eda 1999int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 2000 int *frame_size_ptr,
0c1a9eda 2001 uint8_t *buf, int buf_size);
492cd3a9 2002int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 2003 int *got_picture_ptr,
0c1a9eda
ZK
2004 uint8_t *buf, int buf_size);
2005int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2006 int *data_size_ptr,
0c1a9eda
ZK
2007 uint8_t *buf, int buf_size);
2008int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2009 const short *samples);
0c1a9eda 2010int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2011 const AVFrame *pict);
de6d9b64
FB
2012
2013int avcodec_close(AVCodecContext *avctx);
2014
2015void avcodec_register_all(void);
a96b68b7 2016
1c2a8c7f
MN
2017void avcodec_flush_buffers(AVCodecContext *avctx);
2018
14bea432 2019/* misc usefull functions */
d8085ea7
MN
2020
2021/**
2022 * returns a single letter to describe the picture type
2023 */
2024char av_get_pict_type_char(int pict_type);
2025
14bea432
MN
2026/**
2027 * reduce a fraction.
2028 * this is usefull for framerate calculations
2029 * @param max the maximum allowed for dst_nom & dst_den
2030 * @return 1 if exact, 0 otherwise
2031 */
2032int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2033
2034/**
2035 * rescale a 64bit integer.
2036 * a simple a*b/c isnt possible as it can overflow
2037 */
4c263142 2038int64_t av_rescale(int64_t a, int64_t b, int64_t c);
628d601b 2039
628d601b 2040
e8f14793
ZK
2041/**
2042 * Interface for 0.5.0 version
2043 *
2044 * do not even think about it's usage for this moment
2045 */
2046
2047typedef struct {
64863965 2048 /// compressed size used from given memory buffer
e8f14793
ZK
2049 int size;
2050 /// I/P/B frame type
2051 int frame_type;
2052} avc_enc_result_t;
2053
2054/**
2055 * Commands
2056 * order can't be changed - once it was defined
2057 */
2058typedef enum {
2059 // general commands
2060 AVC_OPEN_BY_NAME = 0xACA000,
2061 AVC_OPEN_BY_CODEC_ID,
2062 AVC_OPEN_BY_FOURCC,
2063 AVC_CLOSE,
2064
2065 AVC_FLUSH,
2066 // pin - struct { uint8_t* src, uint_t src_size }
2067 // pout - struct { AVPicture* img, consumed_bytes,
2068 AVC_DECODE,
2069 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
2070 // pout - uint_t used_from_dest_size
2071 AVC_ENCODE,
2072
2073 // query/get video commands
2074 AVC_GET_VERSION = 0xACB000,
2075 AVC_GET_WIDTH,
2076 AVC_GET_HEIGHT,
2077 AVC_GET_DELAY,
2078 AVC_GET_QUANT_TABLE,
2079 // ...
2080
2081 // query/get audio commands
2082 AVC_GET_FRAME_SIZE = 0xABC000,
2083
2084 // maybe define some simple structure which
2085 // might be passed to the user - but they can't
2086 // contain any codec specific parts and these
2087 // calls are usualy necessary only few times
2088
2089 // set video commands
2090 AVC_SET_WIDTH = 0xACD000,
2091 AVC_SET_HEIGHT,
2092
2093 // set video encoding commands
2094 AVC_SET_FRAME_RATE = 0xACD800,
2095 AVC_SET_QUALITY,
2096 AVC_SET_HURRY_UP,
2097
2098 // set audio commands
2099 AVC_SET_SAMPLE_RATE = 0xACE000,
2100 AVC_SET_CHANNELS,
2101
2102} avc_cmd_t;
2103
2104/**
2105 * \param handle allocated private structure by libavcodec
2106 * for initialization pass NULL - will be returned pout
2107 * user is supposed to know nothing about its structure
2108 * \param cmd type of operation to be performed
2109 * \param pint input parameter
2110 * \param pout output parameter
2111 *
2112 * \returns command status - eventually for query command it might return
2113 * integer resulting value
2114 */
2115int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
2116
8424cf50
FB
2117/* frame parsing */
2118typedef struct AVCodecParserContext {
2119 void *priv_data;
2120 struct AVCodecParser *parser;
2121 int64_t frame_offset; /* offset of the current frame */
2122 int64_t cur_offset; /* current offset
2123 (incremented by each av_parser_parse()) */
2124 int64_t last_frame_offset; /* offset of the last frame */
2125 /* video info */
2126 int pict_type; /* XXX: put it back in AVCodecContext */
2127 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2128 int64_t pts; /* pts of the current frame */
2129 int64_t dts; /* dts of the current frame */
2130
2131 /* private data */
2132 int64_t last_pts;
2133 int64_t last_dts;
a62aecce 2134 int fetch_timestamp;
b84f2a35
FB
2135
2136#define AV_PARSER_PTS_NB 4
2137 int cur_frame_start_index;
2138 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2139 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2140 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
8424cf50
FB
2141} AVCodecParserContext;
2142
2143typedef struct AVCodecParser {
2144 int codec_ids[3]; /* several codec IDs are permitted */
2145 int priv_data_size;
2146 int (*parser_init)(AVCodecParserContext *s);
2147 int (*parser_parse)(AVCodecParserContext *s,
2148 AVCodecContext *avctx,
2149 uint8_t **poutbuf, int *poutbuf_size,
2150 const uint8_t *buf, int buf_size);
2151 void (*parser_close)(AVCodecParserContext *s);
2152 struct AVCodecParser *next;
2153} AVCodecParser;
2154
2155extern AVCodecParser *av_first_parser;
2156
2157void av_register_codec_parser(AVCodecParser *parser);
2158AVCodecParserContext *av_parser_init(int codec_id);
2159int av_parser_parse(AVCodecParserContext *s,
2160 AVCodecContext *avctx,
2161 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2162 const uint8_t *buf, int buf_size,
2163 int64_t pts, int64_t dts);
8424cf50
FB
2164void av_parser_close(AVCodecParserContext *s);
2165
2166extern AVCodecParser mpegvideo_parser;
2167extern AVCodecParser mpeg4video_parser;
c6148de2 2168extern AVCodecParser h261_parser;
8424cf50
FB
2169extern AVCodecParser h263_parser;
2170extern AVCodecParser h264_parser;
2171extern AVCodecParser mpegaudio_parser;
2172extern AVCodecParser ac3_parser;
2173
544eb99c 2174/* memory */
e4eadb4b 2175void *av_malloc(unsigned int size);
18f77016 2176void *av_mallocz(unsigned int size);
8e1e6f31 2177void *av_realloc(void *ptr, unsigned int size);
544eb99c 2178void av_free(void *ptr);
8e1e6f31 2179char *av_strdup(const char *s);
81c5f887 2180void av_freep(void *ptr);
97d96aaa 2181void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2182/* for static data only */
2183/* call av_free_static to release all staticaly allocated tables */
628d601b 2184void av_free_static(void);
8d1f2ba5 2185void *av_mallocz_static(unsigned int size);
544eb99c 2186
fc384777
MM
2187/* add by bero : in adx.c */
2188int is_adx(const unsigned char *buf,size_t bufsize);
2189
e1c2a5a0
RT
2190void img_copy(AVPicture *dst, const AVPicture *src,
2191 int pix_fmt, int width, int height);
2192
9b879566
MB
2193/* av_log API */
2194
2195#include <stdarg.h>
2196
d8019eb5 2197#define AV_LOG_QUIET -1
9b879566
MB
2198#define AV_LOG_ERROR 0
2199#define AV_LOG_INFO 1
2200#define AV_LOG_DEBUG 2
2201
f4bd8cf0 2202#ifdef __GNUC__
bc874dae 2203extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
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MN
2204#else
2205extern void av_log(void*, int level, const char *fmt, ...);
2206#endif
2207
bc874dae 2208extern void av_vlog(void*, int level, const char *fmt, va_list);
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2209extern int av_log_get_level(void);
2210extern void av_log_set_level(int);
bc874dae 2211extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2212
3a278992 2213/* endian macros */
e96682e6 2214#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
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MM
2215#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2216#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2217 (((uint8_t*)(x))[1] << 16) | \
2218 (((uint8_t*)(x))[2] << 8) | \
2219 ((uint8_t*)(x))[3])
2220#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2221#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2222 (((uint8_t*)(x))[2] << 16) | \
2223 (((uint8_t*)(x))[1] << 8) | \
2224 ((uint8_t*)(x))[0])
e96682e6 2225#endif
3a278992 2226
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2227#ifdef __cplusplus
2228}
2229#endif
2230
a96b68b7 2231#endif /* AVCODEC_H */