XviD Support patch by (Adam Thayer <krevnik at comcast dot net>)
[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"
20#define LIBAVCODEC_BUILD 4718
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,
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101
102 /* various pcm "codecs" */
103 CODEC_ID_PCM_S16LE,
104 CODEC_ID_PCM_S16BE,
105 CODEC_ID_PCM_U16LE,
106 CODEC_ID_PCM_U16BE,
107 CODEC_ID_PCM_S8,
108 CODEC_ID_PCM_U8,
109 CODEC_ID_PCM_MULAW,
110 CODEC_ID_PCM_ALAW,
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111
112 /* various adpcm codecs */
113 CODEC_ID_ADPCM_IMA_QT,
114 CODEC_ID_ADPCM_IMA_WAV,
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115 CODEC_ID_ADPCM_IMA_DK3,
116 CODEC_ID_ADPCM_IMA_DK4,
2fdf638b 117 CODEC_ID_ADPCM_IMA_WS,
7d8379f2 118 CODEC_ID_ADPCM_IMA_SMJPEG,
0147f198 119 CODEC_ID_ADPCM_MS,
e2a7bb28 120 CODEC_ID_ADPCM_4XM,
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121 CODEC_ID_ADPCM_XA,
122 CODEC_ID_ADPCM_ADX,
7d8379f2 123 CODEC_ID_ADPCM_EA,
e5966052 124 CODEC_ID_ADPCM_G726,
891f64b3 125
126 /* AMR */
127 CODEC_ID_AMR_NB,
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128 CODEC_ID_AMR_WB,
129
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130 /* RealAudio codecs*/
131 CODEC_ID_RA_144,
132 CODEC_ID_RA_288,
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133
134 /* various DPCM codecs */
135 CODEC_ID_ROQ_DPCM,
136 CODEC_ID_INTERPLAY_DPCM,
9937e686 137 CODEC_ID_XAN_DPCM,
985180a1 138
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139 CODEC_ID_FLAC,
140
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141 CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
142 stream (only used by libavformat) */
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143
144 CODEC_ID_DTS,
1ddadfa9 145 CODEC_ID_XVID,
de6d9b64 146};
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147
148/* CODEC_ID_MP3LAME is absolete */
149#define CODEC_ID_MP3LAME CODEC_ID_MP3
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150
151enum CodecType {
4a663d80 152 CODEC_TYPE_UNKNOWN = -1,
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153 CODEC_TYPE_VIDEO,
154 CODEC_TYPE_AUDIO,
985180a1 155 CODEC_TYPE_DATA,
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156};
157
64863965 158/**
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159 * Pixel format. Notes:
160 *
161 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
162 * color is put together as:
163 * (A << 24) | (R << 16) | (G << 8) | B
164 * This is stored as BGRA on little endian CPU architectures and ARGB on
165 * big endian CPUs.
166 *
167 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
168 * image data is stored in AVFrame.data[0]. The palette is transported in
169 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
170 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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171 * also endian-specific). Note also that the individual RGB palette
172 * components stored in AVFrame.data[1] should be in the range 0..255.
173 * This is important as many custom PAL8 video codecs that were designed
174 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 175 */
de6d9b64 176enum PixelFormat {
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177 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
178 PIX_FMT_YUV422,
179 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
180 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
181 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
182 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 183 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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184 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
185 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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186 PIX_FMT_RGB565, ///< always stored in cpu endianness
187 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 188 PIX_FMT_GRAY8,
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189 PIX_FMT_MONOWHITE, ///< 0 is white
190 PIX_FMT_MONOBLACK, ///< 0 is black
191 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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192 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
193 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
194 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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195 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
196 PIX_FMT_XVMC_MPEG2_IDCT,
dab64ebc 197 PIX_FMT_NB,
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198};
199
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200/* currently unused, may be used if 24/32 bits samples ever supported */
201enum SampleFormat {
64863965 202 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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203};
204
de6d9b64 205/* in bytes */
bc8d1857 206#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 207
d7425f59 208/**
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209 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
210 * this is mainly needed because some optimized bitstream readers read
211 * 32 or 64 bit at once and could read over the end<br>
212 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
213 * MPEG bitstreams could cause overread and segfault
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214 */
215#define FF_INPUT_BUFFER_PADDING_SIZE 8
216
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217/* motion estimation type, EPZS by default */
218enum Motion_Est_ID {
101bea5f 219 ME_ZERO = 1,
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220 ME_FULL,
221 ME_LOG,
222 ME_PHODS,
223 ME_EPZS,
224 ME_X1
225};
226
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227typedef struct RcOverride{
228 int start_frame;
229 int end_frame;
230 int qscale; // if this is 0 then quality_factor will be used instead
231 float quality_factor;
232} RcOverride;
233
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234/* only for ME compatiblity with old apps */
235extern int motion_estimation_method;
236
4e00e76b 237#define FF_MAX_B_FRAMES 8
9dbcbd92 238
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239/* encoding support
240 these flags can be passed in AVCodecContext.flags before initing
241 Note: note not everything is supported yet
242*/
de6d9b64 243
64863965 244#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 245#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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246#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
247#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 248#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 249#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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250/* parent program gurantees that the input for b-frame containing streams is not written to
251 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 252#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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253#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
254#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
255#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
256#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
257#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
258#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
259#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 260 of only at frame boundaries */
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261#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
262#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 263#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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264#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
265#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
266#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
267#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 268/* Fx : Flag for h263+ extra options */
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269#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
270#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 271#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 272#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 273#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 274#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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275#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
276#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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277#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
278#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 279#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 280#define CODEC_FLAG_CLOSED_GOP 0x80000000
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281/* Unsupported options :
282 * Syntax Arithmetic coding (SAC)
21e59552 283 * Reference Picture Selection
ba58dabc 284 * Independant Segment Decoding */
21e59552 285/* /Fx */
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286/* codec capabilities */
287
64863965 288#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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289/**
290 * Codec uses get_buffer() for allocating buffers.
291 * direct rendering method 1
292 */
293#define CODEC_CAP_DR1 0x0002
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294/* if 'parse_only' field is true, then avcodec_parse_frame() can be
295 used */
296#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 297#define CODEC_CAP_TRUNCATED 0x0008
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298/* codec can export data for HW decoding (XvMC) */
299#define CODEC_CAP_HWACCEL 0x0010
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300/** codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data */
301#define CODEC_CAP_DELAY 0x0020
bf89e6b1 302
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303//the following defines might change, so dont expect compatibility if u use them
304#define MB_TYPE_INTRA4x4 0x0001
305#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
306#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
307#define MB_TYPE_16x16 0x0008
308#define MB_TYPE_16x8 0x0010
309#define MB_TYPE_8x16 0x0020
310#define MB_TYPE_8x8 0x0040
311#define MB_TYPE_INTERLACED 0x0080
312#define MB_TYPE_DIRECT2 0x0100 //FIXME
313#define MB_TYPE_ACPRED 0x0200
314#define MB_TYPE_GMC 0x0400
315#define MB_TYPE_SKIP 0x0800
316#define MB_TYPE_P0L0 0x1000
317#define MB_TYPE_P1L0 0x2000
318#define MB_TYPE_P0L1 0x4000
319#define MB_TYPE_P1L1 0x8000
320#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
321#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
322#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
323#define MB_TYPE_QUANT 0x00010000
324#define MB_TYPE_CBP 0x00020000
325//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
326
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327/**
328 * Pan Scan area.
329 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
330 */
331typedef struct AVPanScan{
332 /**
333 * id.
334 * - encoding: set by user.
335 * - decoding: set by lavc
336 */
337 int id;
338
339 /**
340 * width and height in 1/16 pel
341 * - encoding: set by user.
342 * - decoding: set by lavc
343 */
344 int width;
345 int height;
346
347 /**
348 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
349 * - encoding: set by user.
350 * - decoding: set by lavc
351 */
352 int16_t position[3][2];
353}AVPanScan;
354
492cd3a9 355#define FF_COMMON_FRAME \
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356 /**\
357 * pointer to the picture planes.\
358 * this might be different from the first allocated byte\
359 * - encoding: \
360 * - decoding: \
361 */\
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362 uint8_t *data[4];\
363 int linesize[4];\
364 /**\
32db2b1d 365 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 366 * this isnt used by lavc unless the default get/release_buffer() is used\
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367 * - encoding: \
368 * - decoding: \
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369 */\
370 uint8_t *base[4];\
371 /**\
372 * 1 -> keyframe, 0-> not\
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373 * - encoding: set by lavc\
374 * - decoding: set by lavc\
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375 */\
376 int key_frame;\
377\
378 /**\
0da71265 379 * picture type of the frame, see ?_TYPE below.\
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380 * - encoding: set by lavc for coded_picture (and set by user for input)\
381 * - decoding: set by lavc\
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382 */\
383 int pict_type;\
384\
385 /**\
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386 * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
387 * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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388 * - encoding: MUST be set by user\
389 * - decoding: set by lavc\
1e491e29 390 */\
be6784dc 391 int64_t pts;\
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392\
393 /**\
394 * picture number in bitstream order.\
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395 * - encoding: set by\
396 * - decoding: set by lavc\
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397 */\
398 int coded_picture_number;\
399 /**\
1e491e29 400 * picture number in display order.\
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401 * - encoding: set by\
402 * - decoding: set by lavc\
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403 */\
404 int display_picture_number;\
405\
406 /**\
158c7f05 407 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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408 * - encoding: set by lavc for coded_picture (and set by user for input)\
409 * - decoding: set by lavc\
1e491e29 410 */\
158c7f05 411 int quality; \
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412\
413 /**\
414 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 415 * set to INT_MAX if the buffer has not been used yet \
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416 * - encoding: unused\
417 * - decoding: MUST be set by get_buffer()\
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418 */\
419 int age;\
420\
421 /**\
422 * is this picture used as reference\
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423 * - encoding: unused\
424 * - decoding: set by lavc (before get_buffer() call))\
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425 */\
426 int reference;\
427\
428 /**\
429 * QP table\
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430 * - encoding: unused\
431 * - decoding: set by lavc\
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432 */\
433 int8_t *qscale_table;\
434 /**\
435 * QP store stride\
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436 * - encoding: unused\
437 * - decoding: set by lavc\
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438 */\
439 int qstride;\
440\
441 /**\
442 * mbskip_table[mb]>=1 if MB didnt change\
443 * stride= mb_width = (width+15)>>4\
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444 * - encoding: unused\
445 * - decoding: set by lavc\
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446 */\
447 uint8_t *mbskip_table;\
448\
449 /**\
8d7ec294 450 * Motion vector table\
a4d36c11 451 * - encoding: set by user\
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452 * - decoding: set by lavc\
453 */\
454 int16_t (*motion_val[2])[2];\
455\
456 /**\
457 * Macroblock type table\
458 * mb_type_base + mb_width + 2\
a4d36c11 459 * - encoding: set by user\
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460 * - decoding: set by lavc\
461 */\
462 uint32_t *mb_type;\
463\
464 /**\
465 * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
466 * - encoding: unused\
467 * - decoding: set by lavc\
468 */\
469 uint8_t motion_subsample_log2;\
470\
471 /**\
1e491e29 472 * for some private data of the user\
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473 * - encoding: unused\
474 * - decoding: set by user\
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475 */\
476 void *opaque;\
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477\
478 /**\
479 * error\
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480 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
481 * - decoding: unused\
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482 */\
483 uint64_t error[4];\
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484\
485 /**\
486 * type of the buffer (to keep track of who has to dealloc data[*])\
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487 * - encoding: set by the one who allocs it\
488 * - decoding: set by the one who allocs it\
3db320ea 489 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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490 */\
491 int type;\
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492 \
493 /**\
494 * when decoding, this signal how much the picture must be delayed.\
495 * extra_delay = repeat_pict / (2*fps)\
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496 * - encoding: unused\
497 * - decoding: set by lavc\
2ec23b6d 498 */\
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499 int repeat_pict;\
500 \
501 /**\
502 * \
503 */\
504 int qscale_type;\
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505 \
506 /**\
507 * The content of the picture is interlaced.\
508 * - encoding: set by user\
509 * - decoding: set by lavc (default 0)\
510 */\
511 int interlaced_frame;\
512 \
513 /**\
9dad924e 514 * if the content is interlaced, is top field displayed first.\
2744ca9a 515 * - encoding: set by user\
9dad924e 516 * - decoding: set by lavc\
2744ca9a 517 */\
9dad924e 518 int top_field_first;\
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519 \
520 /**\
521 * Pan scan.\
522 * - encoding: set by user\
523 * - decoding: set by lavc\
524 */\
525 AVPanScan *pan_scan;\
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526 \
527 /**\
528 * tell user application that palette has changed from previous frame.\
529 * - encoding: ??? (no palette-enabled encoder yet)\
530 * - decoding: set by lavc (default 0)\
531 */\
532 int palette_has_changed;\
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533 \
534 /**\
535 * Codec suggestion on buffer type if != 0\
536 * - encoding: unused\
537 * - decoding: set by lavc (before get_buffer() call))\
538 */\
539 int buffer_hints;\
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540\
541 /**\
542 * DCT coeffitients\
543 * - encoding: unused\
544 * - decoding: set by lavc\
545 */\
546 short *dct_coeff;\
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547\
548 /**\
549 * Motion referece frame index\
550 * - encoding: set by user\
551 * - decoding: set by lavc\
552 */\
553 int8_t *ref_index[2];
2ec23b6d 554
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555#define FF_QSCALE_TYPE_MPEG1 0
556#define FF_QSCALE_TYPE_MPEG2 1
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557
558#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 559#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 560#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 561#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 562
1e491e29 563
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564#define FF_I_TYPE 1 // Intra
565#define FF_P_TYPE 2 // Predicted
566#define FF_B_TYPE 3 // Bi-dir predicted
567#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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568#define FF_SI_TYPE 5
569#define FF_SP_TYPE 6
1e491e29 570
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571#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
572#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
573#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
574#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
575
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576/**
577 * Audio Video Frame.
578 */
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579typedef struct AVFrame {
580 FF_COMMON_FRAME
581} AVFrame;
1e491e29 582
14bea432 583#define DEFAULT_FRAME_RATE_BASE 1001000
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584
585/**
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586 * Used by av_log
587 */
588typedef struct AVCLASS AVClass;
589struct AVCLASS {
590 const char* class_name;
591 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
592 or AVFormatContext, which begin with an AVClass.
593 Needed because av_log is in libavcodec and has no visibility
594 of AVIn/OutputFormat */
595};
596
597/**
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598 * main external api structure.
599 */
de6d9b64 600typedef struct AVCodecContext {
b71901e6 601 /**
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602 * Info on struct for av_log
603 * - set by avcodec_alloc_context
604 */
43465395 605 AVClass *av_class;
bc874dae 606 /**
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607 * the average bitrate.
608 * - encoding: set by user. unused for constant quantizer encoding
609 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 610 */
de6d9b64 611 int bit_rate;
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612
613 /**
64863965 614 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 615 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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616 * - encoding: set by user. unused for constant quantizer encoding
617 * - decoding: unused
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618 */
619 int bit_rate_tolerance;
620
621 /**
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622 * CODEC_FLAG_*.
623 * - encoding: set by user.
624 * - decoding: set by user.
b71901e6 625 */
de6d9b64 626 int flags;
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627
628 /**
629 * some codecs needs additionnal format info. It is stored here
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630 * - encoding: set by user.
631 * - decoding: set by lavc. (FIXME is this ok?)
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632 */
633 int sub_id;
634
635 /**
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636 * motion estimation algorithm used for video coding.
637 * - encoding: MUST be set by user.
638 * - decoding: unused
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639 */
640 int me_method;
641
642 /**
64863965 643 * some codecs need / can use extra-data like huffman tables.
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644 * mjpeg: huffman tables
645 * rv10: additional flags
b704e742 646 * mpeg4: global headers (they can be in the bitstream or here)
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647 * - encoding: set/allocated/freed by lavc.
648 * - decoding: set/allocated/freed by user.
b71901e6 649 */
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650 void *extradata;
651 int extradata_size;
652
de6d9b64 653 /* video only */
b71901e6 654 /**
14bea432 655 * frames per sec multiplied by frame_rate_base.
b71901e6 656 * for variable fps this is the precission, so if the timestamps
14bea432 657 * can be specified in msec precssion then this is 1000*frame_rate_base
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658 * - encoding: MUST be set by user
659 * - decoding: set by lavc. 0 or the frame_rate if available
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660 */
661 int frame_rate;
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662
663 /**
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664 * width / height.
665 * - encoding: MUST be set by user.
95831f48 666 * - decoding: set by user if known, codec should override / dynamically change if needed
b71901e6 667 */
de6d9b64 668 int width, height;
b71901e6 669
e769f053 670#define FF_ASPECT_EXTENDED 15
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671
672 /**
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673 * the number of pictures in a group of pitures, or 0 for intra_only.
674 * - encoding: set by user.
675 * - decoding: unused
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676 */
677 int gop_size;
678
679 /**
64863965 680 * pixel format, see PIX_FMT_xxx.
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RS
681 * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
682 * conversion is in order. This only works for
683 * codecs with one supported pix_fmt, we should
684 * do something for a generic case as well.
64863965 685 * - decoding: set by lavc.
b71901e6 686 */
e4eadb4b 687 enum PixelFormat pix_fmt;
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688
689 /**
690 * Frame rate emulation. If not zero lower layer (i.e. format handler)
691 * has to read frames at native frame rate.
692 * - encoding: set by user.
693 * - decoding: unused.
694 */
695 int rate_emu;
696
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697 /**
698 * if non NULL, 'draw_horiz_band' is called by the libavcodec
699 * decoder to draw an horizontal band. It improve cache usage. Not
700 * all codecs can do that. You must check the codec capabilities
701 * before
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702 * - encoding: unused
703 * - decoding: set by user.
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704 * @param height the height of the slice
705 * @param y the y position of the slice
706 * @param type 1->top field, 2->bottom field, 3->frame
707 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 708 */
bf89e6b1 709 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 710 const AVFrame *src, int offset[4],
3bb07d61 711 int y, int type, int height);
bf89e6b1 712
de6d9b64 713 /* audio only */
64863965 714 int sample_rate; ///< samples per sec
de6d9b64 715 int channels;
64863965 716 int sample_fmt; ///< sample format, currenly unused
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717
718 /* the following data should not be initialized */
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719 int frame_size; ///< in samples, initialized when calling 'init'
720 int frame_number; ///< audio or video frame number
721 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 722
b71901e6 723 /**
b71901e6 724 * number of frames the decoded output will be delayed relative to
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725 * the encoded input.
726 * - encoding: set by lavc.
727 * - decoding: unused
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728 */
729 int delay;
1ff662cc 730
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731 /* - encoding parameters */
732 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
733 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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734
735 /**
64863965
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736 * minimum quantizer.
737 * - encoding: set by user.
738 * - decoding: unused
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739 */
740 int qmin;
741
742 /**
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743 * maximum quantizer.
744 * - encoding: set by user.
745 * - decoding: unused
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746 */
747 int qmax;
748
749 /**
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750 * maximum quantizer difference etween frames.
751 * - encoding: set by user.
752 * - decoding: unused
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753 */
754 int max_qdiff;
755
756 /**
64863965 757 * maximum number of b frames between non b frames.
b71901e6 758 * note: the output will be delayed by max_b_frames+1 relative to the input
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759 * - encoding: set by user.
760 * - decoding: unused
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761 */
762 int max_b_frames;
763
764 /**
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765 * qscale factor between ip and b frames.
766 * - encoding: set by user.
767 * - decoding: unused
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768 */
769 float b_quant_factor;
770
771 /** obsolete FIXME remove */
772 int rc_strategy;
8b4c7dbc 773 int b_frame_strategy;
9dbcbd92 774
b71901e6 775 /**
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776 * hurry up amount.
777 * - encoding: unused
778 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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779 */
780 int hurry_up;
2417652e 781
de6d9b64 782 struct AVCodec *codec;
b71901e6 783
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784 void *priv_data;
785
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786 /* unused, FIXME remove*/
787 int rtp_mode;
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788
789 int rtp_payload_size; /* The size of the RTP payload, the coder will */
790 /* do it's best to deliver a chunk with size */
791 /* below rtp_payload_size, the chunk will start */
792 /* with a start code on some codecs like H.263 */
793 /* This doesn't take account of any particular */
794 /* headers inside the transmited RTP payload */
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795
796
797 /* The RTP callcack: This function is called */
798 /* every time the encoder as a packet to send */
799 /* Depends on the encoder if the data starts */
800 /* with a Start Code (it should) H.263 does */
a7fcb3ea 801 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number);
81401c1f 802
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803 /* statistics, used for 2-pass encoding */
804 int mv_bits;
805 int header_bits;
806 int i_tex_bits;
807 int p_tex_bits;
808 int i_count;
809 int p_count;
810 int skip_count;
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811 int misc_bits;
812
813 /**
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814 * number of bits used for the previously encoded frame.
815 * - encoding: set by lavc
7004ffb3 816 * - decoding: unused
b71901e6 817 */
098eefe1 818 int frame_bits;
7004ffb3 819
b71901e6 820 /**
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821 * private data of the user, can be used to carry app specific stuff.
822 * - encoding: set by user
823 * - decoding: set by user
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824 */
825 void *opaque;
826
de6d9b64 827 char codec_name[32];
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PG
828 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
829 enum CodecID codec_id; /* see CODEC_ID_xxx */
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830
831 /**
832 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
833 * this is used to workaround some encoder bugs
bd5a6020 834 * - encoding: set by user, if not then the default based on codec_id will be used
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835 * - decoding: set by user, will be converted to upper case by lavc during init
836 */
837 unsigned int codec_tag;
92ba5ffb 838
b71901e6 839 /**
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840 * workaround bugs in encoders which sometimes cannot be detected automatically.
841 * - encoding: unused
842 * - decoding: set by user
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843 */
844 int workaround_bugs;
64863965 845#define FF_BUG_AUTODETECT 1 ///< autodetection
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846#define FF_BUG_OLD_MSMPEG4 2
847#define FF_BUG_XVID_ILACE 4
848#define FF_BUG_UMP4 8
849#define FF_BUG_NO_PADDING 16
3116cb14 850#define FF_BUG_AMV 32
ac0c6638 851#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 852#define FF_BUG_QPEL_CHROMA 64
db794953 853#define FF_BUG_STD_QPEL 128
36df8805 854#define FF_BUG_QPEL_CHROMA2 256
c40c3482 855#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 856#define FF_BUG_EDGE 1024
b44bdf7e 857#define FF_BUG_HPEL_CHROMA 2048
4ccde216 858#define FF_BUG_DC_CLIP 4096
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859//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
860
b71901e6 861 /**
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862 * luma single coeff elimination threshold.
863 * - encoding: set by user
864 * - decoding: unused
b71901e6 865 */
1f6b6e50 866 int luma_elim_threshold;
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867
868 /**
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869 * chroma single coeff elimination threshold.
870 * - encoding: set by user
871 * - decoding: unused
b71901e6 872 */
1f6b6e50 873 int chroma_elim_threshold;
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874
875 /**
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876 * strictly follow the std (MPEG4, ...).
877 * - encoding: set by user
878 * - decoding: unused
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879 */
880 int strict_std_compliance;
881
882 /**
64863965 883 * qscale offset between ip and b frames.
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884 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
885 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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886 * - encoding: set by user.
887 * - decoding: unused
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888 */
889 float b_quant_offset;
890
891 /**
ce3bcaed 892 * error resilience higher values will detect more errors but may missdetect
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893 * some more or less valid parts as errors.
894 * - encoding: unused
895 * - decoding: set by user
b71901e6 896 */
1f6b6e50 897 int error_resilience;
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898#define FF_ER_CAREFULL 1
899#define FF_ER_COMPLIANT 2
900#define FF_ER_AGGRESSIVE 3
901#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 902
6b72ac63 903 /**
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904 * called at the beginning of each frame to get a buffer for it.
905 * if pic.reference is set then the frame will be read later by lavc
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906 * avcodec_align_dimensions() should be used to find the required width and
907 * height, as they normally need to be rounded up to the next multiple of 16
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908 * - encoding: unused
909 * - decoding: set by lavc, user can override
b71901e6 910 */
492cd3a9 911 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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912
913 /**
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914 * called to release buffers which where allocated with get_buffer.
915 * a released buffer can be reused in get_buffer()
916 * pic.data[*] must be set to NULL
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917 * - encoding: unused
918 * - decoding: set by lavc, user can override
b71901e6 919 */
492cd3a9 920 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 921
b71901e6 922 /**
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923 * if 1 the stream has a 1 frame delay during decoding.
924 * - encoding: set by lavc
64863965 925 * - decoding: set by lavc
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926 */
927 int has_b_frames;
b71901e6 928
64863965 929 int block_align; ///< used by some WAV based audio codecs
ce980a95 930
64863965 931 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
932 (function avcodec_parse_frame()). The frame
933 data is returned. Only MPEG codecs support this now. */
ce980a95 934
b71901e6 935 /**
e4eadb4b 936 * 0-> h263 quant 1-> mpeg quant.
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937 * - encoding: set by user.
938 * - decoding: unused
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939 */
940 int mpeg_quant;
ce980a95 941
b71901e6 942 /**
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943 * pass1 encoding statistics output buffer.
944 * - encoding: set by lavc
945 * - decoding: unused
b71901e6 946 */
64863965 947 char *stats_out;
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948
949 /**
950 * pass2 encoding statistics input buffer.
951 * concatenated stuff from stats_out of pass1 should be placed here
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952 * - encoding: allocated/set/freed by user
953 * - decoding: unused
b71901e6
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954 */
955 char *stats_in;
956
957 /**
64863965 958 * ratecontrol qmin qmax limiting method.
b71901e6 959 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
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960 * - encoding: set by user.
961 * - decoding: unused
b71901e6 962 */
ce980a95 963 float rc_qsquish;
b71901e6 964
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965 float rc_qmod_amp;
966 int rc_qmod_freq;
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967
968 /**
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969 * ratecontrol override, see RcOverride.
970 * - encoding: allocated/set/freed by user.
971 * - decoding: unused
b71901e6 972 */
ce980a95
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973 RcOverride *rc_override;
974 int rc_override_count;
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975
976 /**
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977 * rate control equation.
978 * - encoding: set by user
979 * - decoding: unused
b71901e6 980 */
ce980a95 981 char *rc_eq;
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982
983 /**
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984 * maximum bitrate.
985 * - encoding: set by user.
986 * - decoding: unused
b71901e6 987 */
ce980a95 988 int rc_max_rate;
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989
990 /**
64863965
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991 * minimum bitrate.
992 * - encoding: set by user.
993 * - decoding: unused
b71901e6 994 */
ce980a95 995 int rc_min_rate;
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996
997 /**
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998 * decoder bitstream buffer size.
999 * - encoding: set by user.
1000 * - decoding: unused
b71901e6 1001 */
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1002 int rc_buffer_size;
1003 float rc_buffer_aggressivity;
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1004
1005 /**
64863965 1006 * qscale factor between p and i frames.
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1007 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1008 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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1009 * - encoding: set by user.
1010 * - decoding: unused
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1011 */
1012 float i_quant_factor;
1013
1014 /**
64863965 1015 * qscale offset between p and i frames.
64863965
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1016 * - encoding: set by user.
1017 * - decoding: unused
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1018 */
1019 float i_quant_offset;
1020
1021 /**
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1022 * initial complexity for pass1 ratecontrol.
1023 * - encoding: set by user.
1024 * - decoding: unused
b71901e6 1025 */
ce980a95 1026 float rc_initial_cplx;
917e06c8 1027
b71901e6 1028 /**
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1029 * dct algorithm, see FF_DCT_* below.
1030 * - encoding: set by user
1031 * - decoding: unused
b71901e6 1032 */
28db7fce 1033 int dct_algo;
c7e07931 1034#define FF_DCT_AUTO 0
28db7fce 1035#define FF_DCT_FASTINT 1
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MO
1036#define FF_DCT_INT 2
1037#define FF_DCT_MMX 3
1038#define FF_DCT_MLIB 4
05c4072b 1039#define FF_DCT_ALTIVEC 5
65e4c8c9 1040#define FF_DCT_FAAN 6
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1041
1042 /**
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1043 * luminance masking (0-> disabled).
1044 * - encoding: set by user
1045 * - decoding: unused
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1046 */
1047 float lumi_masking;
1048
1049 /**
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MN
1050 * temporary complexity masking (0-> disabled).
1051 * - encoding: set by user
1052 * - decoding: unused
c5d309f2
MN
1053 */
1054 float temporal_cplx_masking;
1055
1056 /**
64863965
MN
1057 * spatial complexity masking (0-> disabled).
1058 * - encoding: set by user
1059 * - decoding: unused
c5d309f2
MN
1060 */
1061 float spatial_cplx_masking;
1062
1063 /**
64863965
MN
1064 * p block masking (0-> disabled).
1065 * - encoding: set by user
1066 * - decoding: unused
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1067 */
1068 float p_masking;
15415af4 1069
5e746b99 1070 /**
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MN
1071 * darkness masking (0-> disabled).
1072 * - encoding: set by user
1073 * - decoding: unused
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MN
1074 */
1075 float dark_masking;
0c2dd16e 1076
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NK
1077
1078 /* for binary compatibility */
1079 int unused;
1080
0c2dd16e 1081 /**
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1082 * idct algorithm, see FF_IDCT_* below.
1083 * - encoding: set by user
1084 * - decoding: set by user
2ad1516a
MN
1085 */
1086 int idct_algo;
1087#define FF_IDCT_AUTO 0
1088#define FF_IDCT_INT 1
1089#define FF_IDCT_SIMPLE 2
1090#define FF_IDCT_SIMPLEMMX 3
1091#define FF_IDCT_LIBMPEG2MMX 4
1092#define FF_IDCT_PS2 5
1093#define FF_IDCT_MLIB 6
1094#define FF_IDCT_ARM 7
05c4072b 1095#define FF_IDCT_ALTIVEC 8
b82cdc72 1096#define FF_IDCT_SH4 9
bd7d1ea7 1097#define FF_IDCT_SIMPLEARM 10
2ad1516a 1098
144f0625 1099 /**
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1100 * slice count.
1101 * - encoding: set by lavc
1102 * - decoding: set by user (or 0)
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1103 */
1104 int slice_count;
1105 /**
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1106 * slice offsets in the frame in bytes.
1107 * - encoding: set/allocated by lavc
1108 * - decoding: set/allocated by user (or NULL)
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1109 */
1110 int *slice_offset;
1111
4d2858de 1112 /**
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1113 * error concealment flags.
1114 * - encoding: unused
1115 * - decoding: set by user
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1116 */
1117 int error_concealment;
1118#define FF_EC_GUESS_MVS 1
1119#define FF_EC_DEBLOCK 2
1120
6b72ac63 1121 /**
bec89a84 1122 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1123 * CPU features (i.e. MMX, SSE. ...)
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1124 *
1125 * with FORCE flag you may instead enable given CPU features
1126 * (Dangerous: usable in case of misdetection, improper usage however will
1127 * result into program crash)
1128 */
1129 unsigned dsp_mask;
1130#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1131 /* lower 16 bits - CPU features */
1132#ifdef HAVE_MMX
1133#define FF_MM_MMX 0x0001 /* standard MMX */
1134#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1135#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1136#define FF_MM_SSE 0x0008 /* SSE functions */
1137#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1138#endif /* HAVE_MMX */
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1139
1140 /**
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1141 * bits per sample/pixel from the demuxer (needed for huffyuv).
1142 * - encoding: set by lavc
1143 * - decoding: set by user
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1144 */
1145 int bits_per_sample;
1146
1147 /**
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1148 * prediction method (needed for huffyuv).
1149 * - encoding: set by user
1150 * - decoding: unused
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1151 */
1152 int prediction_method;
1153#define FF_PRED_LEFT 0
1154#define FF_PRED_PLANE 1
1155#define FF_PRED_MEDIAN 2
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1156
1157 /**
5ff85f1d 1158 * sample aspect ratio (0 if unknown).
1f26c6f3 1159 * numerator and denominator must be relative prime and smaller then 256 for some video standards
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1160 * - encoding: set by user.
1161 * - decoding: set by lavc.
5d3cea3a 1162 */
5ff85f1d 1163 AVRational sample_aspect_ratio;
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1164
1165 /**
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1166 * the picture in the bitstream.
1167 * - encoding: set by lavc
1168 * - decoding: set by lavc
1e491e29 1169 */
492cd3a9 1170 AVFrame *coded_frame;
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1171
1172 /**
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1173 * debug.
1174 * - encoding: set by user.
1175 * - decoding: set by user.
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1176 */
1177 int debug;
1178#define FF_DEBUG_PICT_INFO 1
1179#define FF_DEBUG_RC 2
1180#define FF_DEBUG_BITSTREAM 4
1181#define FF_DEBUG_MB_TYPE 8
1182#define FF_DEBUG_QP 16
1183#define FF_DEBUG_MV 32
8289c6fa 1184#define FF_DEBUG_DCT_COEFF 0x00000040
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1185#define FF_DEBUG_SKIP 0x00000080
1186#define FF_DEBUG_STARTCODE 0x00000100
1187#define FF_DEBUG_PTS 0x00000200
46b4feec 1188#define FF_DEBUG_ER 0x00000400
0da71265 1189#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1190#define FF_DEBUG_BUGS 0x00001000
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1191#define FF_DEBUG_VIS_QP 0x00002000
1192#define FF_DEBUG_VIS_MB_TYPE 0x00004000
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1193
1194 /**
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1195 * debug.
1196 * - encoding: set by user.
1197 * - decoding: set by user.
1198 */
1199 int debug_mv;
1200#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1201#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1202#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1203
1204 /**
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1205 * error.
1206 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1207 * - decoding: unused
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1208 */
1209 uint64_t error[4];
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1210
1211 /**
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1212 * minimum MB quantizer.
1213 * - encoding: set by user.
1214 * - decoding: unused
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1215 */
1216 int mb_qmin;
1217
1218 /**
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1219 * maximum MB quantizer.
1220 * - encoding: set by user.
1221 * - decoding: unused
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1222 */
1223 int mb_qmax;
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1224
1225 /**
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1226 * motion estimation compare function.
1227 * - encoding: set by user.
1228 * - decoding: unused
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1229 */
1230 int me_cmp;
1231 /**
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1232 * subpixel motion estimation compare function.
1233 * - encoding: set by user.
1234 * - decoding: unused
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1235 */
1236 int me_sub_cmp;
1237 /**
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1238 * macroblock compare function (not supported yet).
1239 * - encoding: set by user.
1240 * - decoding: unused
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1241 */
1242 int mb_cmp;
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1243 /**
1244 * interlaced dct compare function
1245 * - encoding: set by user.
1246 * - decoding: unused
1247 */
1248 int ildct_cmp;
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1249#define FF_CMP_SAD 0
1250#define FF_CMP_SSE 1
1251#define FF_CMP_SATD 2
1252#define FF_CMP_DCT 3
1253#define FF_CMP_PSNR 4
1254#define FF_CMP_BIT 5
1255#define FF_CMP_RD 6
1256#define FF_CMP_ZERO 7
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1257#define FF_CMP_VSAD 8
1258#define FF_CMP_VSSE 9
e6a2ac34 1259#define FF_CMP_NSSE 10
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1260#define FF_CMP_CHROMA 256
1261
1262 /**
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1263 * ME diamond size & shape.
1264 * - encoding: set by user.
1265 * - decoding: unused
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1266 */
1267 int dia_size;
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1268
1269 /**
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1270 * amount of previous MV predictors (2a+1 x 2a+1 square).
1271 * - encoding: set by user.
1272 * - decoding: unused
b07a5980
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1273 */
1274 int last_predictor_count;
70ac76c0 1275
f5fb6b34 1276 /**
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1277 * pre pass for motion estimation.
1278 * - encoding: set by user.
1279 * - decoding: unused
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1280 */
1281 int pre_me;
b07a5980 1282
70ac76c0 1283 /**
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1284 * motion estimation pre pass compare function.
1285 * - encoding: set by user.
1286 * - decoding: unused
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1287 */
1288 int me_pre_cmp;
826f429a 1289
70ac76c0 1290 /**
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1291 * ME pre pass diamond size & shape.
1292 * - encoding: set by user.
1293 * - decoding: unused
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1294 */
1295 int pre_dia_size;
1296
826f429a 1297 /**
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1298 * subpel ME quality.
1299 * - encoding: set by user.
1300 * - decoding: unused
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1301 */
1302 int me_subpel_quality;
1303
a33c7159 1304 /**
64863965 1305 * callback to negotiate the pixelFormat.
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1306 * @param fmt is the list of formats which are supported by the codec,
1307 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1308 * the first is allways the native one
1309 * @return the choosen format
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1310 * - encoding: unused
1311 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1312 */
494c56d3 1313 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
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1314
1315 /**
1316 * DTG active format information (additionnal aspect ratio
1317 * information only used in DVB MPEG2 transport streams). 0 if
1318 * not set.
1319 *
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1320 * - encoding: unused.
1321 * - decoding: set by decoder
e2f9490e
FB
1322 */
1323 int dtg_active_format;
1324#define FF_DTG_AFD_SAME 8
1325#define FF_DTG_AFD_4_3 9
1326#define FF_DTG_AFD_16_9 10
1327#define FF_DTG_AFD_14_9 11
1328#define FF_DTG_AFD_4_3_SP_14_9 13
1329#define FF_DTG_AFD_16_9_SP_14_9 14
1330#define FF_DTG_AFD_SP_4_3 15
1331
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1332 /**
1333 * Maximum motion estimation search range in subpel units.
1334 * if 0 then no limit
1335 *
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1336 * - encoding: set by user.
1337 * - decoding: unused.
ebbcdc9a 1338 */
59e0ac8e 1339 int me_range;
ebbcdc9a 1340
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1341 /**
1342 * frame_rate_base.
1343 * for variable fps this is 1
1344 * - encoding: set by user.
1345 * - decoding: set by lavc.
1346 * @todo move this after frame_rate
1347 */
65f7062d 1348
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1349 int frame_rate_base;
1350 /**
1351 * intra quantizer bias.
1352 * - encoding: set by user.
1353 * - decoding: unused
1354 */
1355 int intra_quant_bias;
1356#define FF_DEFAULT_QUANT_BIAS 999999
1357
1358 /**
1359 * inter quantizer bias.
1360 * - encoding: set by user.
1361 * - decoding: unused
1362 */
1363 int inter_quant_bias;
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1364
1365 /**
1366 * color table ID.
1367 * - encoding: unused.
1368 * - decoding: which clrtable should be used for 8bit RGB images
1369 * table have to be stored somewhere FIXME
1370 */
1371 int color_table_id;
1984f635 1372
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1373 /**
1374 * internal_buffer count.
1375 * Dont touch, used by lavc default_get_buffer()
1376 */
1377 int internal_buffer_count;
1378
1379 /**
1380 * internal_buffers.
1381 * Dont touch, used by lavc default_get_buffer()
1382 */
1383 void *internal_buffer;
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1384
1385#define FF_LAMBDA_SHIFT 7
1386#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1387#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1388#define FF_LAMBDA_MAX (256*128-1)
1389
1390#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
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1391 /**
1392 * global quality for codecs which cannot change it per frame.
1393 * this should be proportional to MPEG1/2/4 qscale.
1394 * - encoding: set by user.
1395 * - decoding: unused
1396 */
1397 int global_quality;
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1398
1399#define FF_CODER_TYPE_VLC 0
1400#define FF_CODER_TYPE_AC 1
1401 /**
1402 * coder type
1403 * - encoding: set by user.
1404 * - decoding: unused
1405 */
1406 int coder_type;
1407
1408 /**
1409 * context model
1410 * - encoding: set by user.
1411 * - decoding: unused
1412 */
1413 int context_model;
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1414
1415 /**
1416 * slice flags
1417 * - encoding: unused
1418 * - decoding: set by user.
1419 */
1420 int slice_flags;
1421#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1422#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1423#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1424
fb364ada
IK
1425 /**
1426 * XVideo Motion Acceleration
1427 * - encoding: forbidden
1428 * - decoding: set by decoder
1429 */
1430 int xvmc_acceleration;
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1431
1432 /**
1433 * macroblock decision mode
1434 * - encoding: set by user.
1435 * - decoding: unused
1436 */
1437 int mb_decision;
1438#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1439#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1440#define FF_MB_DECISION_RD 2 ///< rate distoration
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1441
1442 /**
1443 * custom intra quantization matrix
1444 * - encoding: set by user, can be NULL
1445 * - decoding: set by lavc
1446 */
1447 uint16_t *intra_matrix;
1448
1449 /**
1450 * custom inter quantization matrix
1451 * - encoding: set by user, can be NULL
1452 * - decoding: set by lavc
1453 */
1454 uint16_t *inter_matrix;
7d1c3fc1 1455
541ae140
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1456 /**
1457 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1458 * this is used to workaround some encoder bugs
1459 * - encoding: unused
1460 * - decoding: set by user, will be converted to upper case by lavc during init
1461 */
1462 unsigned int stream_codec_tag;
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1463
1464 /**
1465 * scene change detection threshold.
1466 * 0 is default, larger means fewer detected scene changes
1467 * - encoding: set by user.
1468 * - decoding: unused
1469 */
1470 int scenechange_threshold;
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1471
1472 /**
1473 * minimum lagrange multipler
1474 * - encoding: set by user.
1475 * - decoding: unused
1476 */
1477 int lmin;
1478
1479 /**
1480 * maximum lagrange multipler
1481 * - encoding: set by user.
1482 * - decoding: unused
1483 */
1484 int lmax;
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1485
1486 /**
1487 * Palette control structure
1488 * - encoding: ??? (no palette-enabled encoder yet)
1489 * - decoding: set by user.
1490 */
1491 struct AVPaletteControl *palctrl;
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1492
1493 /**
1494 * noise reduction strength
1495 * - encoding: set by user.
1496 * - decoding: unused
1497 */
1498 int noise_reduction;
fa384dcc 1499
074c4ca7 1500 /**
e1c2a5a0
RT
1501 * called at the beginning of a frame to get cr buffer for it.
1502 * buffer type (size, hints) must be the same. lavc won't check it.
1503 * lavc will pass previous buffer in pic, function should return
1504 * same buffer or new buffer with old frame "painted" into it.
1505 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1506 * - encoding: unused
e1c2a5a0 1507 * - decoding: set by lavc, user can override
074c4ca7 1508 */
e1c2a5a0 1509 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
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1510
1511 /**
1512 * number of bits which should be loaded into the rc buffer before decoding starts
1513 * - encoding: set by user.
1514 * - decoding: unused
1515 */
1516 int rc_initial_buffer_occupancy;
1517
1518 /**
1519 *
1520 * - encoding: set by user.
1521 * - decoding: unused
1522 */
1523 int inter_threshold;
1524
1525 /**
1526 * CODEC_FLAG2_*.
1527 * - encoding: set by user.
1528 * - decoding: set by user.
1529 */
1530 int flags2;
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1531
1532 /**
1533 * simulates errors in the bitstream to test error concealment.
1534 * - encoding: set by user.
1535 * - decoding: unused.
1536 */
1537 int error_rate;
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1538
1539 /**
1540 * MP3 antialias algorithm, see FF_AA_* below.
1541 * - encoding: unused
1542 * - decoding: set by user
1543 */
1544 int antialias_algo;
1545#define FF_AA_AUTO 0
1546#define FF_AA_FASTINT 1 //not implemented yet
1547#define FF_AA_INT 2
1548#define FF_AA_FLOAT 3
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1549 /**
1550 * Quantizer noise shaping.
1551 * - encoding: set by user
1552 * - decoding: unused
1553 */
1554 int quantizer_noise_shaping;
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1555
1556 /**
1557 * Thread count.
1558 * is used to decide how many independant tasks should be passed to execute()
1559 * - encoding: set by user
1560 * - decoding: set by user
1561 */
1562 int thread_count;
1563
1564 /**
1565 * the codec may call this to execute several independant things. it will return only after
1566 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1567 * default implementation will execute the parts serially
399cec2f 1568 * @param count the number of things to execute
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1569 * - encoding: set by lavc, user can override
1570 * - decoding: set by lavc, user can override
1571 */
1572 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1573
1574 /**
1575 * Thread opaque.
1576 * can be used by execute() to store some per AVCodecContext stuff.
1577 * - encoding: set by execute()
1578 * - decoding: set by execute()
1579 */
1580 void *thread_opaque;
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1581
1582 /**
f20f8a8b
MN
1583 * Motion estimation threshold. under which no motion estimation is
1584 * performed, but instead the user specified motion vectors are used
a4d36c11
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1585 *
1586 * - encoding: set by user
f20f8a8b 1587 * - decoding: unused
a4d36c11 1588 */
2750b827 1589 int me_threshold;
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1590
1591 /**
1592 * Macroblock threshold. under which the user specified macroblock types will be used
1593 * - encoding: set by user
1594 * - decoding: unused
1595 */
1596 int mb_threshold;
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1597
1598 /**
d4c5d2ad 1599 * precision of the intra dc coefficient - 8.
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1600 * - encoding: set by user
1601 * - decoding: unused
1602 */
1603 int intra_dc_precision;
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MN
1604
1605 /**
1606 * noise vs. sse weight for the nsse comparsion function.
1607 * - encoding: set by user
1608 * - decoding: unused
1609 */
1610 int nsse_weight;
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1611
1612 /**
1613 * number of macroblock rows at the top which are skiped.
1614 * - encoding: unused
1615 * - decoding: set by user
1616 */
1617 int skip_top;
1618
1619 /**
1620 * number of macroblock rows at the bottom which are skiped.
1621 * - encoding: unused
1622 * - decoding: set by user
1623 */
1624 int skip_bottom;
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FB
1625} AVCodecContext;
1626
97d96aaa 1627
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1628/**
1629 * AVOption.
1630 */
97d96aaa
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1631typedef struct AVOption {
1632 /** options' name */
1633 const char *name; /* if name is NULL, it indicates a link to next */
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1634 /** short English text help or const struct AVOption* subpointer */
1635 const char *help; // const struct AVOption* sub;
97d96aaa
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1636 /** offset to context structure where the parsed value should be stored */
1637 int offset;
1638 /** options' type */
1639 int type;
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1640#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1641#define FF_OPT_TYPE_DOUBLE 2 ///< double
1642#define FF_OPT_TYPE_INT 3 ///< integer
1643#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1644#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
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1645//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1646#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1647#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1648 /** min value (min == max -> no limits) */
1649 double min;
1650 /** maximum value for double/int */
1651 double max;
1652 /** default boo [0,1]l/double/int value */
1653 double defval;
1654 /**
1655 * default string value (with optional semicolon delimited extra option-list
1656 * i.e. option1;option2;option3
1657 * defval might select other then first argument as default
1658 */
1659 const char *defstr;
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1660#define FF_OPT_MAX_DEPTH 10
1661} AVOption;
1662
64863965 1663/**
bec89a84
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1664 * Parse option(s) and sets fields in passed structure
1665 * @param strct structure where the parsed results will be written
1666 * @param list list with AVOptions
1667 * @param opts string with options for parsing
1668 */
1669int avoption_parse(void* strct, const AVOption* list, const char* opts);
1670
1671
1672/**
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1673 * AVCodec.
1674 */
de6d9b64 1675typedef struct AVCodec {
18f77016 1676 const char *name;
5d234974 1677 enum CodecType type;
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FB
1678 int id;
1679 int priv_data_size;
1680 int (*init)(AVCodecContext *);
0c1a9eda 1681 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1682 int (*close)(AVCodecContext *);
0fd90455 1683 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1684 uint8_t *buf, int buf_size);
bf89e6b1 1685 int capabilities;
97d96aaa 1686 const AVOption *options;
de6d9b64 1687 struct AVCodec *next;
7a06ff14 1688 void (*flush)(AVCodecContext *);
b0df362b 1689 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1690 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
de6d9b64
FB
1691} AVCodec;
1692
97d96aaa 1693/**
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1694 * four components are given, that's all.
1695 * the last component is alpha
1696 */
de6d9b64 1697typedef struct AVPicture {
0c1a9eda 1698 uint8_t *data[4];
cd394651 1699 int linesize[4]; ///< number of bytes per line
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FB
1700} AVPicture;
1701
ba118447
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1702/**
1703 * AVPaletteControl
1704 * This structure defines a method for communicating palette changes
1705 * between and demuxer and a decoder.
1706 */
2e99641b 1707#define AVPALETTE_SIZE 1024
432d84c3 1708#define AVPALETTE_COUNT 256
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1709typedef struct AVPaletteControl {
1710
1711 /* demuxer sets this to 1 to indicate the palette has changed;
1712 * decoder resets to 0 */
1713 int palette_changed;
1714
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MM
1715 /* 4-byte ARGB palette entries, stored in native byte order; note that
1716 * the individual palette components should be on a 8-bit scale; if
1717 * the palette data comes from a IBM VGA native format, the component
1718 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1719 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1720
1721} AVPaletteControl;
1722
de6d9b64
FB
1723extern AVCodec ac3_encoder;
1724extern AVCodec mp2_encoder;
9d36bdc9 1725extern AVCodec mp3lame_encoder;
81e0d0b4 1726extern AVCodec oggvorbis_encoder;
29d48296 1727extern AVCodec faac_encoder;
1ddadfa9 1728extern AVCodec xvid_encoder;
de6d9b64 1729extern AVCodec mpeg1video_encoder;
029911d1 1730extern AVCodec mpeg2video_encoder;
de6d9b64
FB
1731extern AVCodec h263_encoder;
1732extern AVCodec h263p_encoder;
d4f5d74a 1733extern AVCodec flv_encoder;
de6d9b64 1734extern AVCodec rv10_encoder;
68b94c35 1735extern AVCodec rv20_encoder;
6faa4645 1736extern AVCodec dvvideo_encoder;
de6d9b64 1737extern AVCodec mjpeg_encoder;
b1e6b355 1738extern AVCodec ljpeg_encoder;
bf89e6b1 1739extern AVCodec mpeg4_encoder;
84afee34
MN
1740extern AVCodec msmpeg4v1_encoder;
1741extern AVCodec msmpeg4v2_encoder;
1742extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1743extern AVCodec wmv1_encoder;
1744extern AVCodec wmv2_encoder;
11f18faf 1745extern AVCodec huffyuv_encoder;
0da71265 1746extern AVCodec h264_encoder;
3d2e8cce 1747extern AVCodec asv1_encoder;
9b56edf5 1748extern AVCodec asv2_encoder;
be3564ed 1749extern AVCodec vcr1_encoder;
5e20f836 1750extern AVCodec ffv1_encoder;
c3bf0288 1751extern AVCodec mdec_encoder;
a273bbfb 1752extern AVCodec zlib_encoder;
3b64893d 1753extern AVCodec svq1_encoder;
de6d9b64
FB
1754
1755extern AVCodec h263_decoder;
c6148de2 1756extern AVCodec h261_decoder;
bf89e6b1 1757extern AVCodec mpeg4_decoder;
84afee34
MN
1758extern AVCodec msmpeg4v1_decoder;
1759extern AVCodec msmpeg4v2_decoder;
1760extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1761extern AVCodec wmv1_decoder;
0151a6f5 1762extern AVCodec wmv2_decoder;
922bc38d
MN
1763extern AVCodec mpeg1video_decoder;
1764extern AVCodec mpeg2video_decoder;
c512b303 1765extern AVCodec mpegvideo_decoder;
fb364ada 1766extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1767extern AVCodec h263i_decoder;
d4f5d74a 1768extern AVCodec flv_decoder;
de6d9b64 1769extern AVCodec rv10_decoder;
68b94c35 1770extern AVCodec rv20_decoder;
be8ffec9 1771extern AVCodec svq1_decoder;
8b82a956 1772extern AVCodec svq3_decoder;
020fcc94 1773extern AVCodec dvvideo_decoder;
bc8d1857
FB
1774extern AVCodec wmav1_decoder;
1775extern AVCodec wmav2_decoder;
4e66ab3b 1776extern AVCodec mjpeg_decoder;
b135d9fb 1777extern AVCodec mjpegb_decoder;
5e83dec4 1778extern AVCodec sp5x_decoder;
4b1f4f23 1779extern AVCodec mp2_decoder;
a96b68b7 1780extern AVCodec mp3_decoder;
3f95e843
FR
1781extern AVCodec mace3_decoder;
1782extern AVCodec mace6_decoder;
11f18faf 1783extern AVCodec huffyuv_decoder;
3aca208a 1784extern AVCodec oggvorbis_decoder;
f70f7c6d 1785extern AVCodec cyuv_decoder;
0da71265 1786extern AVCodec h264_decoder;
deabd4fd 1787extern AVCodec indeo3_decoder;
d86053a4 1788extern AVCodec vp3_decoder;
f44ee2c3 1789extern AVCodec theora_decoder;
891f64b3 1790extern AVCodec amr_nb_decoder;
bc634f6f 1791extern AVCodec amr_nb_encoder;
d663a1fd
MN
1792extern AVCodec amr_wb_encoder;
1793extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1794extern AVCodec aac_decoder;
1795extern AVCodec mpeg4aac_decoder;
3d2e8cce 1796extern AVCodec asv1_decoder;
9b56edf5 1797extern AVCodec asv2_decoder;
be3564ed 1798extern AVCodec vcr1_decoder;
3aff069b 1799extern AVCodec cljr_decoder;
5e20f836 1800extern AVCodec ffv1_decoder;
8809cfee 1801extern AVCodec fourxm_decoder;
c3bf0288 1802extern AVCodec mdec_decoder;
3ef8be2b
MM
1803extern AVCodec roq_decoder;
1804extern AVCodec interplay_video_decoder;
9937e686 1805extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1806extern AVCodec rpza_decoder;
1807extern AVCodec cinepak_decoder;
1808extern AVCodec msrle_decoder;
1809extern AVCodec msvideo1_decoder;
6955a882 1810extern AVCodec vqa_decoder;
4120a53a 1811extern AVCodec idcin_decoder;
1dc1ed99 1812extern AVCodec eightbps_decoder;
11e29a41 1813extern AVCodec smc_decoder;
42cad81a 1814extern AVCodec flic_decoder;
fafa0b75
MM
1815extern AVCodec vmdvideo_decoder;
1816extern AVCodec vmdaudio_decoder;
9a4117d5 1817extern AVCodec truemotion1_decoder;
a273bbfb
RT
1818extern AVCodec mszh_decoder;
1819extern AVCodec zlib_decoder;
b8414bbd
NK
1820extern AVCodec ra_144_decoder;
1821extern AVCodec ra_288_decoder;
3ef8be2b
MM
1822extern AVCodec roq_dpcm_decoder;
1823extern AVCodec interplay_dpcm_decoder;
9937e686 1824extern AVCodec xan_dpcm_decoder;
070ed1bc 1825extern AVCodec qtrle_decoder;
ac2570a8 1826extern AVCodec flac_decoder;
de6d9b64 1827
a96b68b7
FB
1828/* pcm codecs */
1829#define PCM_CODEC(id, name) \
1830extern AVCodec name ## _decoder; \
f11d3f23 1831extern AVCodec name ## _encoder
a96b68b7
FB
1832
1833PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1834PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1835PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1836PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1837PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1838PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1839PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1840PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1841
0147f198
FR
1842/* adpcm codecs */
1843
1844PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1845PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
1846PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1847PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 1848PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 1849PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 1850PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 1851PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
1852PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1853PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 1854PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 1855PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
0147f198 1856
a96b68b7
FB
1857#undef PCM_CODEC
1858
1859/* dummy raw video codec */
63167088
RS
1860extern AVCodec rawvideo_encoder;
1861extern AVCodec rawvideo_decoder;
de6d9b64
FB
1862
1863/* the following codecs use external GPL libs */
de6d9b64 1864extern AVCodec ac3_decoder;
23c99253 1865extern AVCodec dts_decoder;
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FB
1866
1867/* resample.c */
1868
1869struct ReSampleContext;
aaaf1635 1870struct AVResampleContext;
de6d9b64
FB
1871
1872typedef struct ReSampleContext ReSampleContext;
1873
1874ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1875 int output_rate, int input_rate);
1876int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1877void audio_resample_close(ReSampleContext *s);
1878
aaaf1635
MN
1879struct AVResampleContext *av_resample_init(int out_rate, int in_rate);
1880int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2d48eddd 1881void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
d88443ae 1882void av_resample_close(struct AVResampleContext *c);
aaaf1635 1883
de6d9b64
FB
1884/* YUV420 format is assumed ! */
1885
1886struct ImgReSampleContext;
1887
1888typedef struct ImgReSampleContext ImgReSampleContext;
1889
1890ImgReSampleContext *img_resample_init(int output_width, int output_height,
1891 int input_width, int input_height);
ab6d194a
MN
1892
1893ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1894 int iwidth, int iheight,
1895 int topBand, int bottomBand,
1ff93ffc
TK
1896 int leftBand, int rightBand,
1897 int padtop, int padbottom,
1898 int padleft, int padright);
1899
ab6d194a 1900
de6d9b64 1901void img_resample(ImgReSampleContext *s,
da64ecc3 1902 AVPicture *output, const AVPicture *input);
de6d9b64
FB
1903
1904void img_resample_close(ImgReSampleContext *s);
1905
75917b88
DH
1906/**
1907 * Allocate memory for a picture. Call avpicture_free to free it.
1908 *
1909 * @param picture the picture to be filled in.
1910 * @param pix_fmt the format of the picture.
1911 * @param width the width of the picture.
1912 * @param height the height of the picture.
1913 * @return 0 if successful, -1 if not.
1914 */
1915int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1916
1917/* Free a picture previously allocated by avpicture_alloc. */
1918void avpicture_free(AVPicture *picture);
1919
0c1a9eda 1920int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1921 int pix_fmt, int width, int height);
da64ecc3 1922int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 1923 unsigned char *dest, int dest_size);
219b06c6 1924int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
1925void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1926const char *avcodec_get_pix_fmt_name(int pix_fmt);
63167088 1927enum PixelFormat avcodec_get_pix_fmt(const char* name);
219b06c6 1928
fab21997
FB
1929#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
1930#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
1931#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
1932#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
1933#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
1934#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1935
1936int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1937 int has_alpha);
1938int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1939 int has_alpha, int *loss_ptr);
1940
0469baf1
FB
1941#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
1942#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
1943int img_get_alpha_info(const AVPicture *src,
1944 int pix_fmt, int width, int height);
0469baf1 1945
219b06c6
FB
1946/* convert among pixel formats */
1947int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 1948 const AVPicture *src, int pix_fmt,
219b06c6
FB
1949 int width, int height);
1950
1951/* deinterlace a picture */
da64ecc3 1952int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
1953 int pix_fmt, int width, int height);
1954
1955/* external high level API */
1956
1957extern AVCodec *first_avcodec;
1958
156e5023 1959/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1960unsigned avcodec_version(void);
8bceb6af 1961/* returns LIBAVCODEC_BUILD constant */
51a49663 1962unsigned avcodec_build(void);
de6d9b64
FB
1963void avcodec_init(void);
1964
1965void register_avcodec(AVCodec *format);
1966AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1967AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
1968AVCodec *avcodec_find_decoder(enum CodecID id);
1969AVCodec *avcodec_find_decoder_by_name(const char *name);
1970void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1971
1e491e29 1972void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1973AVCodecContext *avcodec_alloc_context(void);
7906085f 1974void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 1975AVFrame *avcodec_alloc_frame(void);
1e491e29 1976
492cd3a9
MN
1977int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1978void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
1979int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
1980void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
1981enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 1982
5a815088
MN
1983int avcodec_thread_init(AVCodecContext *s, int thread_count);
1984void avcodec_thread_free(AVCodecContext *s);
1985int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 1986int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
1987//FIXME func typedef
1988
7a06ff14
MN
1989/**
1990 * opens / inits the AVCodecContext.
1991 * not thread save!
1992 */
de6d9b64 1993int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 1994
0c1a9eda 1995int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 1996 int *frame_size_ptr,
0c1a9eda 1997 uint8_t *buf, int buf_size);
492cd3a9 1998int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 1999 int *got_picture_ptr,
0c1a9eda
ZK
2000 uint8_t *buf, int buf_size);
2001int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 2002 int *data_size_ptr,
0c1a9eda
ZK
2003 uint8_t *buf, int buf_size);
2004int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 2005 const short *samples);
0c1a9eda 2006int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 2007 const AVFrame *pict);
de6d9b64
FB
2008
2009int avcodec_close(AVCodecContext *avctx);
2010
2011void avcodec_register_all(void);
a96b68b7 2012
1c2a8c7f
MN
2013void avcodec_flush_buffers(AVCodecContext *avctx);
2014
14bea432 2015/* misc usefull functions */
d8085ea7
MN
2016
2017/**
2018 * returns a single letter to describe the picture type
2019 */
2020char av_get_pict_type_char(int pict_type);
2021
14bea432
MN
2022/**
2023 * reduce a fraction.
2024 * this is usefull for framerate calculations
2025 * @param max the maximum allowed for dst_nom & dst_den
2026 * @return 1 if exact, 0 otherwise
2027 */
2028int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2029
2030/**
2031 * rescale a 64bit integer.
2032 * a simple a*b/c isnt possible as it can overflow
2033 */
4c263142 2034int64_t av_rescale(int64_t a, int64_t b, int64_t c);
628d601b 2035
628d601b 2036
e8f14793
ZK
2037/**
2038 * Interface for 0.5.0 version
2039 *
2040 * do not even think about it's usage for this moment
2041 */
2042
2043typedef struct {
64863965 2044 /// compressed size used from given memory buffer
e8f14793
ZK
2045 int size;
2046 /// I/P/B frame type
2047 int frame_type;
2048} avc_enc_result_t;
2049
2050/**
2051 * Commands
2052 * order can't be changed - once it was defined
2053 */
2054typedef enum {
2055 // general commands
2056 AVC_OPEN_BY_NAME = 0xACA000,
2057 AVC_OPEN_BY_CODEC_ID,
2058 AVC_OPEN_BY_FOURCC,
2059 AVC_CLOSE,
2060
2061 AVC_FLUSH,
2062 // pin - struct { uint8_t* src, uint_t src_size }
2063 // pout - struct { AVPicture* img, consumed_bytes,
2064 AVC_DECODE,
2065 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
2066 // pout - uint_t used_from_dest_size
2067 AVC_ENCODE,
2068
2069 // query/get video commands
2070 AVC_GET_VERSION = 0xACB000,
2071 AVC_GET_WIDTH,
2072 AVC_GET_HEIGHT,
2073 AVC_GET_DELAY,
2074 AVC_GET_QUANT_TABLE,
2075 // ...
2076
2077 // query/get audio commands
2078 AVC_GET_FRAME_SIZE = 0xABC000,
2079
2080 // maybe define some simple structure which
2081 // might be passed to the user - but they can't
2082 // contain any codec specific parts and these
2083 // calls are usualy necessary only few times
2084
2085 // set video commands
2086 AVC_SET_WIDTH = 0xACD000,
2087 AVC_SET_HEIGHT,
2088
2089 // set video encoding commands
2090 AVC_SET_FRAME_RATE = 0xACD800,
2091 AVC_SET_QUALITY,
2092 AVC_SET_HURRY_UP,
2093
2094 // set audio commands
2095 AVC_SET_SAMPLE_RATE = 0xACE000,
2096 AVC_SET_CHANNELS,
2097
2098} avc_cmd_t;
2099
2100/**
2101 * \param handle allocated private structure by libavcodec
2102 * for initialization pass NULL - will be returned pout
2103 * user is supposed to know nothing about its structure
2104 * \param cmd type of operation to be performed
2105 * \param pint input parameter
2106 * \param pout output parameter
2107 *
2108 * \returns command status - eventually for query command it might return
2109 * integer resulting value
2110 */
2111int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
2112
8424cf50
FB
2113/* frame parsing */
2114typedef struct AVCodecParserContext {
2115 void *priv_data;
2116 struct AVCodecParser *parser;
2117 int64_t frame_offset; /* offset of the current frame */
2118 int64_t cur_offset; /* current offset
2119 (incremented by each av_parser_parse()) */
2120 int64_t last_frame_offset; /* offset of the last frame */
2121 /* video info */
2122 int pict_type; /* XXX: put it back in AVCodecContext */
2123 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2124 int64_t pts; /* pts of the current frame */
2125 int64_t dts; /* dts of the current frame */
2126
2127 /* private data */
2128 int64_t last_pts;
2129 int64_t last_dts;
a62aecce 2130 int fetch_timestamp;
b84f2a35
FB
2131
2132#define AV_PARSER_PTS_NB 4
2133 int cur_frame_start_index;
2134 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2135 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2136 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
8424cf50
FB
2137} AVCodecParserContext;
2138
2139typedef struct AVCodecParser {
2140 int codec_ids[3]; /* several codec IDs are permitted */
2141 int priv_data_size;
2142 int (*parser_init)(AVCodecParserContext *s);
2143 int (*parser_parse)(AVCodecParserContext *s,
2144 AVCodecContext *avctx,
2145 uint8_t **poutbuf, int *poutbuf_size,
2146 const uint8_t *buf, int buf_size);
2147 void (*parser_close)(AVCodecParserContext *s);
2148 struct AVCodecParser *next;
2149} AVCodecParser;
2150
2151extern AVCodecParser *av_first_parser;
2152
2153void av_register_codec_parser(AVCodecParser *parser);
2154AVCodecParserContext *av_parser_init(int codec_id);
2155int av_parser_parse(AVCodecParserContext *s,
2156 AVCodecContext *avctx,
2157 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2158 const uint8_t *buf, int buf_size,
2159 int64_t pts, int64_t dts);
8424cf50
FB
2160void av_parser_close(AVCodecParserContext *s);
2161
2162extern AVCodecParser mpegvideo_parser;
2163extern AVCodecParser mpeg4video_parser;
c6148de2 2164extern AVCodecParser h261_parser;
8424cf50
FB
2165extern AVCodecParser h263_parser;
2166extern AVCodecParser h264_parser;
2167extern AVCodecParser mpegaudio_parser;
2168extern AVCodecParser ac3_parser;
2169
544eb99c 2170/* memory */
e4eadb4b 2171void *av_malloc(unsigned int size);
18f77016 2172void *av_mallocz(unsigned int size);
8e1e6f31 2173void *av_realloc(void *ptr, unsigned int size);
544eb99c 2174void av_free(void *ptr);
8e1e6f31 2175char *av_strdup(const char *s);
81c5f887 2176void av_freep(void *ptr);
97d96aaa 2177void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2178/* for static data only */
2179/* call av_free_static to release all staticaly allocated tables */
628d601b 2180void av_free_static(void);
8d1f2ba5 2181void *av_mallocz_static(unsigned int size);
544eb99c 2182
fc384777
MM
2183/* add by bero : in adx.c */
2184int is_adx(const unsigned char *buf,size_t bufsize);
2185
e1c2a5a0
RT
2186void img_copy(AVPicture *dst, const AVPicture *src,
2187 int pix_fmt, int width, int height);
2188
9b879566
MB
2189/* av_log API */
2190
2191#include <stdarg.h>
2192
d8019eb5 2193#define AV_LOG_QUIET -1
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MB
2194#define AV_LOG_ERROR 0
2195#define AV_LOG_INFO 1
2196#define AV_LOG_DEBUG 2
2197
f4bd8cf0 2198#ifdef __GNUC__
bc874dae 2199extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2200#else
2201extern void av_log(void*, int level, const char *fmt, ...);
2202#endif
2203
bc874dae 2204extern void av_vlog(void*, int level, const char *fmt, va_list);
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2205extern int av_log_get_level(void);
2206extern void av_log_set_level(int);
bc874dae 2207extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2208
3a278992 2209/* endian macros */
e96682e6 2210#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
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2211#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2212#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2213 (((uint8_t*)(x))[1] << 16) | \
2214 (((uint8_t*)(x))[2] << 8) | \
2215 ((uint8_t*)(x))[3])
2216#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2217#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2218 (((uint8_t*)(x))[2] << 16) | \
2219 (((uint8_t*)(x))[1] << 8) | \
2220 ((uint8_t*)(x))[0])
e96682e6 2221#endif
3a278992 2222
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2223#ifdef __cplusplus
2224}
2225#endif
2226
a96b68b7 2227#endif /* AVCODEC_H */