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[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 0x000408
19#define FFMPEG_VERSION "0.4.8"
d4c5d2ad 20#define LIBAVCODEC_BUILD 4716
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) */
de6d9b64 143};
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144
145/* CODEC_ID_MP3LAME is absolete */
146#define CODEC_ID_MP3LAME CODEC_ID_MP3
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147
148enum CodecType {
4a663d80 149 CODEC_TYPE_UNKNOWN = -1,
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150 CODEC_TYPE_VIDEO,
151 CODEC_TYPE_AUDIO,
985180a1 152 CODEC_TYPE_DATA,
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153};
154
64863965 155/**
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156 * Pixel format. Notes:
157 *
158 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
159 * color is put together as:
160 * (A << 24) | (R << 16) | (G << 8) | B
161 * This is stored as BGRA on little endian CPU architectures and ARGB on
162 * big endian CPUs.
163 *
164 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
165 * image data is stored in AVFrame.data[0]. The palette is transported in
166 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
167 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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168 * also endian-specific). Note also that the individual RGB palette
169 * components stored in AVFrame.data[1] should be in the range 0..255.
170 * This is important as many custom PAL8 video codecs that were designed
171 * to run on the IBM VGA graphics adapter use 6-bit palette components.
64863965 172 */
de6d9b64 173enum PixelFormat {
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174 PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
175 PIX_FMT_YUV422,
176 PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB...
177 PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR...
178 PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
179 PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
0f371e3e 180 PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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181 PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
182 PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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183 PIX_FMT_RGB565, ///< always stored in cpu endianness
184 PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1
dab64ebc 185 PIX_FMT_GRAY8,
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186 PIX_FMT_MONOWHITE, ///< 0 is white
187 PIX_FMT_MONOBLACK, ///< 0 is black
188 PIX_FMT_PAL8, ///< 8 bit with RGBA palette
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189 PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg)
190 PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg)
191 PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg)
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192 PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
193 PIX_FMT_XVMC_MPEG2_IDCT,
dab64ebc 194 PIX_FMT_NB,
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195};
196
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197/* currently unused, may be used if 24/32 bits samples ever supported */
198enum SampleFormat {
64863965 199 SAMPLE_FMT_S16 = 0, ///< signed 16 bits
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200};
201
de6d9b64 202/* in bytes */
bc8d1857 203#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
de6d9b64 204
d7425f59 205/**
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206 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
207 * this is mainly needed because some optimized bitstream readers read
208 * 32 or 64 bit at once and could read over the end<br>
209 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
210 * MPEG bitstreams could cause overread and segfault
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211 */
212#define FF_INPUT_BUFFER_PADDING_SIZE 8
213
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214/* motion estimation type, EPZS by default */
215enum Motion_Est_ID {
101bea5f 216 ME_ZERO = 1,
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217 ME_FULL,
218 ME_LOG,
219 ME_PHODS,
220 ME_EPZS,
221 ME_X1
222};
223
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224typedef struct RcOverride{
225 int start_frame;
226 int end_frame;
227 int qscale; // if this is 0 then quality_factor will be used instead
228 float quality_factor;
229} RcOverride;
230
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231/* only for ME compatiblity with old apps */
232extern int motion_estimation_method;
233
4e00e76b 234#define FF_MAX_B_FRAMES 8
9dbcbd92 235
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236/* encoding support
237 these flags can be passed in AVCodecContext.flags before initing
238 Note: note not everything is supported yet
239*/
de6d9b64 240
64863965 241#define CODEC_FLAG_QSCALE 0x0002 ///< use fixed qscale
dba019da 242#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / Advanced prediction for H263
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243#define CODEC_FLAG_QPEL 0x0010 ///< use qpel MC
244#define CODEC_FLAG_GMC 0x0020 ///< use GMC
ca7d05d5 245#define CODEC_FLAG_MV0 0x0040 ///< always try a MB with MV=<0,0>
64863965 246#define CODEC_FLAG_PART 0x0080 ///< use data partitioning
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247/* parent program gurantees that the input for b-frame containing streams is not written to
248 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
8b4c7dbc 249#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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250#define CODEC_FLAG_PASS1 0x0200 ///< use internal 2pass ratecontrol in first pass mode
251#define CODEC_FLAG_PASS2 0x0400 ///< use internal 2pass ratecontrol in second pass mode
252#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg)
253#define CODEC_FLAG_GRAY 0x2000 ///< only decode/encode grayscale
254#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges
255#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding
256#define CODEC_FLAG_TRUNCATED 0x00010000 /** input bitstream might be truncated at a random location instead
d7425f59 257 of only at frame boundaries */
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258#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< normalize adaptive quantization
259#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct
3bb07d61 260#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< force low delay
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261#define CODEC_FLAG_ALT_SCAN 0x00100000 ///< use alternate scan
262#define CODEC_FLAG_TRELLIS_QUANT 0x00200000 ///< use trellis quantization
263#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< place global headers in extradata instead of every keyframe
264#define CODEC_FLAG_BITEXACT 0x00800000 ///< use only bitexact stuff (except (i)dct)
21e59552 265/* Fx : Flag for h263+ extra options */
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266#define CODEC_FLAG_H263P_AIC 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
267#define CODEC_FLAG_AC_PRED 0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
64863965 268#define CODEC_FLAG_H263P_UMV 0x02000000 ///< Unlimited motion vector
f2f6134b 269#define CODEC_FLAG_CBP_RD 0x04000000 ///< use rate distortion optimization for cbp
1f26c6f3 270#define CODEC_FLAG_QP_RD 0x08000000 ///< use rate distortion optimization for qp selectioon
dba019da 271#define CODEC_FLAG_H263P_AIV 0x00000008 ///< H263 Alternative inter vlc
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272#define CODEC_FLAG_OBMC 0x00000001 ///< OBMC
273#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
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274#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
275#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
baaf3f46 276#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
303e50e6 277#define CODEC_FLAG_CLOSED_GOP 0x80000000
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278/* Unsupported options :
279 * Syntax Arithmetic coding (SAC)
21e59552 280 * Reference Picture Selection
ba58dabc 281 * Independant Segment Decoding */
21e59552 282/* /Fx */
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283/* codec capabilities */
284
64863965 285#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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286/**
287 * Codec uses get_buffer() for allocating buffers.
288 * direct rendering method 1
289 */
290#define CODEC_CAP_DR1 0x0002
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291/* if 'parse_only' field is true, then avcodec_parse_frame() can be
292 used */
293#define CODEC_CAP_PARSE_ONLY 0x0004
d7425f59 294#define CODEC_CAP_TRUNCATED 0x0008
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295/* codec can export data for HW decoding (XvMC) */
296#define CODEC_CAP_HWACCEL 0x0010
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297/** codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data */
298#define CODEC_CAP_DELAY 0x0020
bf89e6b1 299
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300//the following defines might change, so dont expect compatibility if u use them
301#define MB_TYPE_INTRA4x4 0x0001
302#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
303#define MB_TYPE_INTRA_PCM 0x0004 //FIXME h264 specific
304#define MB_TYPE_16x16 0x0008
305#define MB_TYPE_16x8 0x0010
306#define MB_TYPE_8x16 0x0020
307#define MB_TYPE_8x8 0x0040
308#define MB_TYPE_INTERLACED 0x0080
309#define MB_TYPE_DIRECT2 0x0100 //FIXME
310#define MB_TYPE_ACPRED 0x0200
311#define MB_TYPE_GMC 0x0400
312#define MB_TYPE_SKIP 0x0800
313#define MB_TYPE_P0L0 0x1000
314#define MB_TYPE_P1L0 0x2000
315#define MB_TYPE_P0L1 0x4000
316#define MB_TYPE_P1L1 0x8000
317#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
318#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
319#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
320#define MB_TYPE_QUANT 0x00010000
321#define MB_TYPE_CBP 0x00020000
322//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
323
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324/**
325 * Pan Scan area.
326 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
327 */
328typedef struct AVPanScan{
329 /**
330 * id.
331 * - encoding: set by user.
332 * - decoding: set by lavc
333 */
334 int id;
335
336 /**
337 * width and height in 1/16 pel
338 * - encoding: set by user.
339 * - decoding: set by lavc
340 */
341 int width;
342 int height;
343
344 /**
345 * position of the top left corner in 1/16 pel for up to 3 fields/frames.
346 * - encoding: set by user.
347 * - decoding: set by lavc
348 */
349 int16_t position[3][2];
350}AVPanScan;
351
492cd3a9 352#define FF_COMMON_FRAME \
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353 /**\
354 * pointer to the picture planes.\
355 * this might be different from the first allocated byte\
356 * - encoding: \
357 * - decoding: \
358 */\
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359 uint8_t *data[4];\
360 int linesize[4];\
361 /**\
32db2b1d 362 * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
1e491e29 363 * this isnt used by lavc unless the default get/release_buffer() is used\
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364 * - encoding: \
365 * - decoding: \
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366 */\
367 uint8_t *base[4];\
368 /**\
369 * 1 -> keyframe, 0-> not\
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370 * - encoding: set by lavc\
371 * - decoding: set by lavc\
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372 */\
373 int key_frame;\
374\
375 /**\
0da71265 376 * picture type of the frame, see ?_TYPE below.\
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377 * - encoding: set by lavc for coded_picture (and set by user for input)\
378 * - decoding: set by lavc\
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379 */\
380 int pict_type;\
381\
382 /**\
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383 * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
384 * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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385 * - encoding: MUST be set by user\
386 * - decoding: set by lavc\
1e491e29 387 */\
be6784dc 388 int64_t pts;\
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389\
390 /**\
391 * picture number in bitstream order.\
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392 * - encoding: set by\
393 * - decoding: set by lavc\
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394 */\
395 int coded_picture_number;\
396 /**\
1e491e29 397 * picture number in display order.\
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398 * - encoding: set by\
399 * - decoding: set by lavc\
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400 */\
401 int display_picture_number;\
402\
403 /**\
158c7f05 404 * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
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405 * - encoding: set by lavc for coded_picture (and set by user for input)\
406 * - decoding: set by lavc\
1e491e29 407 */\
158c7f05 408 int quality; \
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409\
410 /**\
411 * buffer age (1->was last buffer and dint change, 2->..., ...).\
158c7f05 412 * set to INT_MAX if the buffer has not been used yet \
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413 * - encoding: unused\
414 * - decoding: MUST be set by get_buffer()\
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415 */\
416 int age;\
417\
418 /**\
419 * is this picture used as reference\
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420 * - encoding: unused\
421 * - decoding: set by lavc (before get_buffer() call))\
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422 */\
423 int reference;\
424\
425 /**\
426 * QP table\
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427 * - encoding: unused\
428 * - decoding: set by lavc\
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429 */\
430 int8_t *qscale_table;\
431 /**\
432 * QP store stride\
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433 * - encoding: unused\
434 * - decoding: set by lavc\
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435 */\
436 int qstride;\
437\
438 /**\
439 * mbskip_table[mb]>=1 if MB didnt change\
440 * stride= mb_width = (width+15)>>4\
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441 * - encoding: unused\
442 * - decoding: set by lavc\
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443 */\
444 uint8_t *mbskip_table;\
445\
446 /**\
8d7ec294 447 * Motion vector table\
a4d36c11 448 * - encoding: set by user\
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449 * - decoding: set by lavc\
450 */\
451 int16_t (*motion_val[2])[2];\
452\
453 /**\
454 * Macroblock type table\
455 * mb_type_base + mb_width + 2\
a4d36c11 456 * - encoding: set by user\
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457 * - decoding: set by lavc\
458 */\
459 uint32_t *mb_type;\
460\
461 /**\
462 * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
463 * - encoding: unused\
464 * - decoding: set by lavc\
465 */\
466 uint8_t motion_subsample_log2;\
467\
468 /**\
1e491e29 469 * for some private data of the user\
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470 * - encoding: unused\
471 * - decoding: set by user\
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472 */\
473 void *opaque;\
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474\
475 /**\
476 * error\
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477 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
478 * - decoding: unused\
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479 */\
480 uint64_t error[4];\
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481\
482 /**\
483 * type of the buffer (to keep track of who has to dealloc data[*])\
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484 * - encoding: set by the one who allocs it\
485 * - decoding: set by the one who allocs it\
3db320ea 486 * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
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487 */\
488 int type;\
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489 \
490 /**\
491 * when decoding, this signal how much the picture must be delayed.\
492 * extra_delay = repeat_pict / (2*fps)\
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493 * - encoding: unused\
494 * - decoding: set by lavc\
2ec23b6d 495 */\
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496 int repeat_pict;\
497 \
498 /**\
499 * \
500 */\
501 int qscale_type;\
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502 \
503 /**\
504 * The content of the picture is interlaced.\
505 * - encoding: set by user\
506 * - decoding: set by lavc (default 0)\
507 */\
508 int interlaced_frame;\
509 \
510 /**\
9dad924e 511 * if the content is interlaced, is top field displayed first.\
2744ca9a 512 * - encoding: set by user\
9dad924e 513 * - decoding: set by lavc\
2744ca9a 514 */\
9dad924e 515 int top_field_first;\
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516 \
517 /**\
518 * Pan scan.\
519 * - encoding: set by user\
520 * - decoding: set by lavc\
521 */\
522 AVPanScan *pan_scan;\
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523 \
524 /**\
525 * tell user application that palette has changed from previous frame.\
526 * - encoding: ??? (no palette-enabled encoder yet)\
527 * - decoding: set by lavc (default 0)\
528 */\
529 int palette_has_changed;\
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530 \
531 /**\
532 * Codec suggestion on buffer type if != 0\
533 * - encoding: unused\
534 * - decoding: set by lavc (before get_buffer() call))\
535 */\
536 int buffer_hints;\
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537\
538 /**\
539 * DCT coeffitients\
540 * - encoding: unused\
541 * - decoding: set by lavc\
542 */\
543 short *dct_coeff;\
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544\
545 /**\
546 * Motion referece frame index\
547 * - encoding: set by user\
548 * - decoding: set by lavc\
549 */\
550 int8_t *ref_index[2];
2ec23b6d 551
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552#define FF_QSCALE_TYPE_MPEG1 0
553#define FF_QSCALE_TYPE_MPEG2 1
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554
555#define FF_BUFFER_TYPE_INTERNAL 1
9b56edf5 556#define FF_BUFFER_TYPE_USER 2 ///< Direct rendering buffers (image is (de)allocated by user)
a4d36c11 557#define FF_BUFFER_TYPE_SHARED 4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
9b56edf5 558#define FF_BUFFER_TYPE_COPY 8 ///< just a (modified) copy of some other buffer, dont dealloc anything
4e00e76b 559
1e491e29 560
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561#define FF_I_TYPE 1 // Intra
562#define FF_P_TYPE 2 // Predicted
563#define FF_B_TYPE 3 // Bi-dir predicted
564#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
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565#define FF_SI_TYPE 5
566#define FF_SP_TYPE 6
1e491e29 567
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568#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
569#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
570#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
571#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
572
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573/**
574 * Audio Video Frame.
575 */
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576typedef struct AVFrame {
577 FF_COMMON_FRAME
578} AVFrame;
1e491e29 579
14bea432 580#define DEFAULT_FRAME_RATE_BASE 1001000
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581
582/**
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583 * Used by av_log
584 */
585typedef struct AVCLASS AVClass;
586struct AVCLASS {
587 const char* class_name;
588 const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
589 or AVFormatContext, which begin with an AVClass.
590 Needed because av_log is in libavcodec and has no visibility
591 of AVIn/OutputFormat */
592};
593
594/**
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595 * main external api structure.
596 */
de6d9b64 597typedef struct AVCodecContext {
b71901e6 598 /**
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599 * Info on struct for av_log
600 * - set by avcodec_alloc_context
601 */
43465395 602 AVClass *av_class;
bc874dae 603 /**
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604 * the average bitrate.
605 * - encoding: set by user. unused for constant quantizer encoding
606 * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
b71901e6 607 */
de6d9b64 608 int bit_rate;
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609
610 /**
64863965 611 * number of bits the bitstream is allowed to diverge from the reference.
b71901e6 612 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
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613 * - encoding: set by user. unused for constant quantizer encoding
614 * - decoding: unused
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615 */
616 int bit_rate_tolerance;
617
618 /**
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619 * CODEC_FLAG_*.
620 * - encoding: set by user.
621 * - decoding: set by user.
b71901e6 622 */
de6d9b64 623 int flags;
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624
625 /**
626 * some codecs needs additionnal format info. It is stored here
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627 * - encoding: set by user.
628 * - decoding: set by lavc. (FIXME is this ok?)
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629 */
630 int sub_id;
631
632 /**
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633 * motion estimation algorithm used for video coding.
634 * - encoding: MUST be set by user.
635 * - decoding: unused
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636 */
637 int me_method;
638
639 /**
64863965 640 * some codecs need / can use extra-data like huffman tables.
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641 * mjpeg: huffman tables
642 * rv10: additional flags
b704e742 643 * mpeg4: global headers (they can be in the bitstream or here)
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644 * - encoding: set/allocated/freed by lavc.
645 * - decoding: set/allocated/freed by user.
b71901e6 646 */
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647 void *extradata;
648 int extradata_size;
649
de6d9b64 650 /* video only */
b71901e6 651 /**
14bea432 652 * frames per sec multiplied by frame_rate_base.
b71901e6 653 * for variable fps this is the precission, so if the timestamps
14bea432 654 * can be specified in msec precssion then this is 1000*frame_rate_base
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655 * - encoding: MUST be set by user
656 * - decoding: set by lavc. 0 or the frame_rate if available
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657 */
658 int frame_rate;
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659
660 /**
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661 * width / height.
662 * - encoding: MUST be set by user.
95831f48 663 * - decoding: set by user if known, codec should override / dynamically change if needed
b71901e6 664 */
de6d9b64 665 int width, height;
b71901e6 666
e769f053 667#define FF_ASPECT_EXTENDED 15
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668
669 /**
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670 * the number of pictures in a group of pitures, or 0 for intra_only.
671 * - encoding: set by user.
672 * - decoding: unused
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673 */
674 int gop_size;
675
676 /**
64863965 677 * pixel format, see PIX_FMT_xxx.
36b58e85
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678 * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
679 * conversion is in order. This only works for
680 * codecs with one supported pix_fmt, we should
681 * do something for a generic case as well.
64863965 682 * - decoding: set by lavc.
b71901e6 683 */
e4eadb4b 684 enum PixelFormat pix_fmt;
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685
686 /**
687 * Frame rate emulation. If not zero lower layer (i.e. format handler)
688 * has to read frames at native frame rate.
689 * - encoding: set by user.
690 * - decoding: unused.
691 */
692 int rate_emu;
693
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694 /**
695 * if non NULL, 'draw_horiz_band' is called by the libavcodec
696 * decoder to draw an horizontal band. It improve cache usage. Not
697 * all codecs can do that. You must check the codec capabilities
698 * before
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699 * - encoding: unused
700 * - decoding: set by user.
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701 * @param height the height of the slice
702 * @param y the y position of the slice
703 * @param type 1->top field, 2->bottom field, 3->frame
704 * @param offset offset into the AVFrame.data from which the slice should be read
b71901e6 705 */
bf89e6b1 706 void (*draw_horiz_band)(struct AVCodecContext *s,
da64ecc3 707 const AVFrame *src, int offset[4],
3bb07d61 708 int y, int type, int height);
bf89e6b1 709
de6d9b64 710 /* audio only */
64863965 711 int sample_rate; ///< samples per sec
de6d9b64 712 int channels;
64863965 713 int sample_fmt; ///< sample format, currenly unused
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714
715 /* the following data should not be initialized */
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716 int frame_size; ///< in samples, initialized when calling 'init'
717 int frame_number; ///< audio or video frame number
718 int real_pict_num; ///< returns the real picture number of previous encoded frame
1e491e29 719
b71901e6 720 /**
b71901e6 721 * number of frames the decoded output will be delayed relative to
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722 * the encoded input.
723 * - encoding: set by lavc.
724 * - decoding: unused
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725 */
726 int delay;
1ff662cc 727
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728 /* - encoding parameters */
729 float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
730 float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
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731
732 /**
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733 * minimum quantizer.
734 * - encoding: set by user.
735 * - decoding: unused
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736 */
737 int qmin;
738
739 /**
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740 * maximum quantizer.
741 * - encoding: set by user.
742 * - decoding: unused
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743 */
744 int qmax;
745
746 /**
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747 * maximum quantizer difference etween frames.
748 * - encoding: set by user.
749 * - decoding: unused
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750 */
751 int max_qdiff;
752
753 /**
64863965 754 * maximum number of b frames between non b frames.
b71901e6 755 * note: the output will be delayed by max_b_frames+1 relative to the input
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756 * - encoding: set by user.
757 * - decoding: unused
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758 */
759 int max_b_frames;
760
761 /**
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762 * qscale factor between ip and b frames.
763 * - encoding: set by user.
764 * - decoding: unused
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765 */
766 float b_quant_factor;
767
768 /** obsolete FIXME remove */
769 int rc_strategy;
8b4c7dbc 770 int b_frame_strategy;
9dbcbd92 771
b71901e6 772 /**
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773 * hurry up amount.
774 * - encoding: unused
775 * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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776 */
777 int hurry_up;
2417652e 778
de6d9b64 779 struct AVCodec *codec;
b71901e6 780
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781 void *priv_data;
782
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783 /* unused, FIXME remove*/
784 int rtp_mode;
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785
786 int rtp_payload_size; /* The size of the RTP payload, the coder will */
787 /* do it's best to deliver a chunk with size */
788 /* below rtp_payload_size, the chunk will start */
789 /* with a start code on some codecs like H.263 */
790 /* This doesn't take account of any particular */
791 /* headers inside the transmited RTP payload */
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792
793
794 /* The RTP callcack: This function is called */
795 /* every time the encoder as a packet to send */
796 /* Depends on the encoder if the data starts */
797 /* with a Start Code (it should) H.263 does */
a7fcb3ea 798 void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number);
81401c1f 799
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800 /* statistics, used for 2-pass encoding */
801 int mv_bits;
802 int header_bits;
803 int i_tex_bits;
804 int p_tex_bits;
805 int i_count;
806 int p_count;
807 int skip_count;
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808 int misc_bits;
809
810 /**
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811 * number of bits used for the previously encoded frame.
812 * - encoding: set by lavc
7004ffb3 813 * - decoding: unused
b71901e6 814 */
098eefe1 815 int frame_bits;
7004ffb3 816
b71901e6 817 /**
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818 * private data of the user, can be used to carry app specific stuff.
819 * - encoding: set by user
820 * - decoding: set by user
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821 */
822 void *opaque;
823
de6d9b64 824 char codec_name[32];
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825 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
826 enum CodecID codec_id; /* see CODEC_ID_xxx */
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827
828 /**
829 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
830 * this is used to workaround some encoder bugs
bd5a6020 831 * - encoding: set by user, if not then the default based on codec_id will be used
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832 * - decoding: set by user, will be converted to upper case by lavc during init
833 */
834 unsigned int codec_tag;
92ba5ffb 835
b71901e6 836 /**
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837 * workaround bugs in encoders which sometimes cannot be detected automatically.
838 * - encoding: unused
839 * - decoding: set by user
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840 */
841 int workaround_bugs;
64863965 842#define FF_BUG_AUTODETECT 1 ///< autodetection
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843#define FF_BUG_OLD_MSMPEG4 2
844#define FF_BUG_XVID_ILACE 4
845#define FF_BUG_UMP4 8
846#define FF_BUG_NO_PADDING 16
3116cb14 847#define FF_BUG_AMV 32
ac0c6638 848#define FF_BUG_AC_VLC 0 ///< will be removed, libavcodec can now handle these non compliant files by default
03e93d35 849#define FF_BUG_QPEL_CHROMA 64
db794953 850#define FF_BUG_STD_QPEL 128
36df8805 851#define FF_BUG_QPEL_CHROMA2 256
c40c3482 852#define FF_BUG_DIRECT_BLOCKSIZE 512
1c6dcb0f 853#define FF_BUG_EDGE 1024
b44bdf7e 854#define FF_BUG_HPEL_CHROMA 2048
4ccde216 855#define FF_BUG_DC_CLIP 4096
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856//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
857
b71901e6 858 /**
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859 * luma single coeff elimination threshold.
860 * - encoding: set by user
861 * - decoding: unused
b71901e6 862 */
1f6b6e50 863 int luma_elim_threshold;
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864
865 /**
64863965
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866 * chroma single coeff elimination threshold.
867 * - encoding: set by user
868 * - decoding: unused
b71901e6 869 */
1f6b6e50 870 int chroma_elim_threshold;
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871
872 /**
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873 * strictly follow the std (MPEG4, ...).
874 * - encoding: set by user
875 * - decoding: unused
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876 */
877 int strict_std_compliance;
878
879 /**
64863965 880 * qscale offset between ip and b frames.
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881 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
882 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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883 * - encoding: set by user.
884 * - decoding: unused
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885 */
886 float b_quant_offset;
887
888 /**
ce3bcaed 889 * error resilience higher values will detect more errors but may missdetect
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890 * some more or less valid parts as errors.
891 * - encoding: unused
892 * - decoding: set by user
b71901e6 893 */
1f6b6e50 894 int error_resilience;
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895#define FF_ER_CAREFULL 1
896#define FF_ER_COMPLIANT 2
897#define FF_ER_AGGRESSIVE 3
898#define FF_ER_VERY_AGGRESSIVE 4
ae72cda6 899
6b72ac63 900 /**
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901 * called at the beginning of each frame to get a buffer for it.
902 * if pic.reference is set then the frame will be read later by lavc
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903 * avcodec_align_dimensions() should be used to find the required width and
904 * height, as they normally need to be rounded up to the next multiple of 16
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905 * - encoding: unused
906 * - decoding: set by lavc, user can override
b71901e6 907 */
492cd3a9 908 int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
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909
910 /**
1e491e29
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911 * called to release buffers which where allocated with get_buffer.
912 * a released buffer can be reused in get_buffer()
913 * pic.data[*] must be set to NULL
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914 * - encoding: unused
915 * - decoding: set by lavc, user can override
b71901e6 916 */
492cd3a9 917 void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
0fd90455 918
b71901e6 919 /**
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920 * if 1 the stream has a 1 frame delay during decoding.
921 * - encoding: set by lavc
64863965 922 * - decoding: set by lavc
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923 */
924 int has_b_frames;
b71901e6 925
64863965 926 int block_align; ///< used by some WAV based audio codecs
ce980a95 927
64863965 928 int parse_only; /* - decoding only: if true, only parsing is done
917e06c8
FB
929 (function avcodec_parse_frame()). The frame
930 data is returned. Only MPEG codecs support this now. */
ce980a95 931
b71901e6 932 /**
e4eadb4b 933 * 0-> h263 quant 1-> mpeg quant.
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934 * - encoding: set by user.
935 * - decoding: unused
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936 */
937 int mpeg_quant;
ce980a95 938
b71901e6 939 /**
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940 * pass1 encoding statistics output buffer.
941 * - encoding: set by lavc
942 * - decoding: unused
b71901e6 943 */
64863965 944 char *stats_out;
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945
946 /**
947 * pass2 encoding statistics input buffer.
948 * concatenated stuff from stats_out of pass1 should be placed here
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949 * - encoding: allocated/set/freed by user
950 * - decoding: unused
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951 */
952 char *stats_in;
953
954 /**
64863965 955 * ratecontrol qmin qmax limiting method.
b71901e6 956 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
64863965
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957 * - encoding: set by user.
958 * - decoding: unused
b71901e6 959 */
ce980a95 960 float rc_qsquish;
b71901e6 961
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962 float rc_qmod_amp;
963 int rc_qmod_freq;
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964
965 /**
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966 * ratecontrol override, see RcOverride.
967 * - encoding: allocated/set/freed by user.
968 * - decoding: unused
b71901e6 969 */
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970 RcOverride *rc_override;
971 int rc_override_count;
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972
973 /**
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974 * rate control equation.
975 * - encoding: set by user
976 * - decoding: unused
b71901e6 977 */
ce980a95 978 char *rc_eq;
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979
980 /**
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MN
981 * maximum bitrate.
982 * - encoding: set by user.
983 * - decoding: unused
b71901e6 984 */
ce980a95 985 int rc_max_rate;
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MN
986
987 /**
64863965
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988 * minimum bitrate.
989 * - encoding: set by user.
990 * - decoding: unused
b71901e6 991 */
ce980a95 992 int rc_min_rate;
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993
994 /**
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995 * decoder bitstream buffer size.
996 * - encoding: set by user.
997 * - decoding: unused
b71901e6 998 */
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999 int rc_buffer_size;
1000 float rc_buffer_aggressivity;
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MN
1001
1002 /**
64863965 1003 * qscale factor between p and i frames.
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1004 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1005 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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1006 * - encoding: set by user.
1007 * - decoding: unused
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1008 */
1009 float i_quant_factor;
1010
1011 /**
64863965 1012 * qscale offset between p and i frames.
64863965
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1013 * - encoding: set by user.
1014 * - decoding: unused
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1015 */
1016 float i_quant_offset;
1017
1018 /**
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1019 * initial complexity for pass1 ratecontrol.
1020 * - encoding: set by user.
1021 * - decoding: unused
b71901e6 1022 */
ce980a95 1023 float rc_initial_cplx;
917e06c8 1024
b71901e6 1025 /**
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1026 * dct algorithm, see FF_DCT_* below.
1027 * - encoding: set by user
1028 * - decoding: unused
b71901e6 1029 */
28db7fce 1030 int dct_algo;
c7e07931 1031#define FF_DCT_AUTO 0
28db7fce 1032#define FF_DCT_FASTINT 1
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MO
1033#define FF_DCT_INT 2
1034#define FF_DCT_MMX 3
1035#define FF_DCT_MLIB 4
05c4072b 1036#define FF_DCT_ALTIVEC 5
65e4c8c9 1037#define FF_DCT_FAAN 6
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1038
1039 /**
64863965
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1040 * luminance masking (0-> disabled).
1041 * - encoding: set by user
1042 * - decoding: unused
c5d309f2
MN
1043 */
1044 float lumi_masking;
1045
1046 /**
64863965
MN
1047 * temporary complexity masking (0-> disabled).
1048 * - encoding: set by user
1049 * - decoding: unused
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1050 */
1051 float temporal_cplx_masking;
1052
1053 /**
64863965
MN
1054 * spatial complexity masking (0-> disabled).
1055 * - encoding: set by user
1056 * - decoding: unused
c5d309f2
MN
1057 */
1058 float spatial_cplx_masking;
1059
1060 /**
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MN
1061 * p block masking (0-> disabled).
1062 * - encoding: set by user
1063 * - decoding: unused
c5d309f2
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1064 */
1065 float p_masking;
15415af4 1066
5e746b99 1067 /**
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MN
1068 * darkness masking (0-> disabled).
1069 * - encoding: set by user
1070 * - decoding: unused
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1071 */
1072 float dark_masking;
0c2dd16e 1073
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1074
1075 /* for binary compatibility */
1076 int unused;
1077
0c2dd16e 1078 /**
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MN
1079 * idct algorithm, see FF_IDCT_* below.
1080 * - encoding: set by user
1081 * - decoding: set by user
2ad1516a
MN
1082 */
1083 int idct_algo;
1084#define FF_IDCT_AUTO 0
1085#define FF_IDCT_INT 1
1086#define FF_IDCT_SIMPLE 2
1087#define FF_IDCT_SIMPLEMMX 3
1088#define FF_IDCT_LIBMPEG2MMX 4
1089#define FF_IDCT_PS2 5
1090#define FF_IDCT_MLIB 6
1091#define FF_IDCT_ARM 7
05c4072b 1092#define FF_IDCT_ALTIVEC 8
b82cdc72 1093#define FF_IDCT_SH4 9
bd7d1ea7 1094#define FF_IDCT_SIMPLEARM 10
2ad1516a 1095
144f0625 1096 /**
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1097 * slice count.
1098 * - encoding: set by lavc
1099 * - decoding: set by user (or 0)
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1100 */
1101 int slice_count;
1102 /**
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1103 * slice offsets in the frame in bytes.
1104 * - encoding: set/allocated by lavc
1105 * - decoding: set/allocated by user (or NULL)
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1106 */
1107 int *slice_offset;
1108
4d2858de 1109 /**
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1110 * error concealment flags.
1111 * - encoding: unused
1112 * - decoding: set by user
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1113 */
1114 int error_concealment;
1115#define FF_EC_GUESS_MVS 1
1116#define FF_EC_DEBLOCK 2
1117
6b72ac63 1118 /**
bec89a84 1119 * dsp_mask could be add used to disable unwanted CPU features
8350df97 1120 * CPU features (i.e. MMX, SSE. ...)
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1121 *
1122 * with FORCE flag you may instead enable given CPU features
1123 * (Dangerous: usable in case of misdetection, improper usage however will
1124 * result into program crash)
1125 */
1126 unsigned dsp_mask;
1127#define FF_MM_FORCE 0x80000000 /* force usage of selected flags (OR) */
1128 /* lower 16 bits - CPU features */
1129#ifdef HAVE_MMX
1130#define FF_MM_MMX 0x0001 /* standard MMX */
1131#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
1132#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
1133#define FF_MM_SSE 0x0008 /* SSE functions */
1134#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
1135#endif /* HAVE_MMX */
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1136
1137 /**
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1138 * bits per sample/pixel from the demuxer (needed for huffyuv).
1139 * - encoding: set by lavc
1140 * - decoding: set by user
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1141 */
1142 int bits_per_sample;
1143
1144 /**
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1145 * prediction method (needed for huffyuv).
1146 * - encoding: set by user
1147 * - decoding: unused
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1148 */
1149 int prediction_method;
1150#define FF_PRED_LEFT 0
1151#define FF_PRED_PLANE 1
1152#define FF_PRED_MEDIAN 2
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1153
1154 /**
5ff85f1d 1155 * sample aspect ratio (0 if unknown).
1f26c6f3 1156 * numerator and denominator must be relative prime and smaller then 256 for some video standards
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1157 * - encoding: set by user.
1158 * - decoding: set by lavc.
5d3cea3a 1159 */
5ff85f1d 1160 AVRational sample_aspect_ratio;
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1161
1162 /**
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1163 * the picture in the bitstream.
1164 * - encoding: set by lavc
1165 * - decoding: set by lavc
1e491e29 1166 */
492cd3a9 1167 AVFrame *coded_frame;
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1168
1169 /**
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1170 * debug.
1171 * - encoding: set by user.
1172 * - decoding: set by user.
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1173 */
1174 int debug;
1175#define FF_DEBUG_PICT_INFO 1
1176#define FF_DEBUG_RC 2
1177#define FF_DEBUG_BITSTREAM 4
1178#define FF_DEBUG_MB_TYPE 8
1179#define FF_DEBUG_QP 16
1180#define FF_DEBUG_MV 32
8289c6fa 1181#define FF_DEBUG_DCT_COEFF 0x00000040
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1182#define FF_DEBUG_SKIP 0x00000080
1183#define FF_DEBUG_STARTCODE 0x00000100
1184#define FF_DEBUG_PTS 0x00000200
46b4feec 1185#define FF_DEBUG_ER 0x00000400
0da71265 1186#define FF_DEBUG_MMCO 0x00000800
8fc6c2b5 1187#define FF_DEBUG_BUGS 0x00001000
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1188#define FF_DEBUG_VIS_QP 0x00002000
1189#define FF_DEBUG_VIS_MB_TYPE 0x00004000
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1190
1191 /**
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1192 * debug.
1193 * - encoding: set by user.
1194 * - decoding: set by user.
1195 */
1196 int debug_mv;
1197#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
1198#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
1199#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1200
1201 /**
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1202 * error.
1203 * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1204 * - decoding: unused
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1205 */
1206 uint64_t error[4];
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1207
1208 /**
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1209 * minimum MB quantizer.
1210 * - encoding: set by user.
1211 * - decoding: unused
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1212 */
1213 int mb_qmin;
1214
1215 /**
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1216 * maximum MB quantizer.
1217 * - encoding: set by user.
1218 * - decoding: unused
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1219 */
1220 int mb_qmax;
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1221
1222 /**
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1223 * motion estimation compare function.
1224 * - encoding: set by user.
1225 * - decoding: unused
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1226 */
1227 int me_cmp;
1228 /**
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1229 * subpixel motion estimation compare function.
1230 * - encoding: set by user.
1231 * - decoding: unused
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1232 */
1233 int me_sub_cmp;
1234 /**
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1235 * macroblock compare function (not supported yet).
1236 * - encoding: set by user.
1237 * - decoding: unused
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1238 */
1239 int mb_cmp;
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1240 /**
1241 * interlaced dct compare function
1242 * - encoding: set by user.
1243 * - decoding: unused
1244 */
1245 int ildct_cmp;
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1246#define FF_CMP_SAD 0
1247#define FF_CMP_SSE 1
1248#define FF_CMP_SATD 2
1249#define FF_CMP_DCT 3
1250#define FF_CMP_PSNR 4
1251#define FF_CMP_BIT 5
1252#define FF_CMP_RD 6
1253#define FF_CMP_ZERO 7
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1254#define FF_CMP_VSAD 8
1255#define FF_CMP_VSSE 9
e6a2ac34 1256#define FF_CMP_NSSE 10
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1257#define FF_CMP_CHROMA 256
1258
1259 /**
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1260 * ME diamond size & shape.
1261 * - encoding: set by user.
1262 * - decoding: unused
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1263 */
1264 int dia_size;
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1265
1266 /**
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1267 * amount of previous MV predictors (2a+1 x 2a+1 square).
1268 * - encoding: set by user.
1269 * - decoding: unused
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1270 */
1271 int last_predictor_count;
70ac76c0 1272
f5fb6b34 1273 /**
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1274 * pre pass for motion estimation.
1275 * - encoding: set by user.
1276 * - decoding: unused
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1277 */
1278 int pre_me;
b07a5980 1279
70ac76c0 1280 /**
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1281 * motion estimation pre pass compare function.
1282 * - encoding: set by user.
1283 * - decoding: unused
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1284 */
1285 int me_pre_cmp;
826f429a 1286
70ac76c0 1287 /**
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1288 * ME pre pass diamond size & shape.
1289 * - encoding: set by user.
1290 * - decoding: unused
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1291 */
1292 int pre_dia_size;
1293
826f429a 1294 /**
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1295 * subpel ME quality.
1296 * - encoding: set by user.
1297 * - decoding: unused
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1298 */
1299 int me_subpel_quality;
1300
a33c7159 1301 /**
64863965 1302 * callback to negotiate the pixelFormat.
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1303 * @param fmt is the list of formats which are supported by the codec,
1304 * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1305 * the first is allways the native one
1306 * @return the choosen format
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1307 * - encoding: unused
1308 * - decoding: set by user, if not set then the native format will always be choosen
a33c7159 1309 */
494c56d3 1310 enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
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1311
1312 /**
1313 * DTG active format information (additionnal aspect ratio
1314 * information only used in DVB MPEG2 transport streams). 0 if
1315 * not set.
1316 *
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1317 * - encoding: unused.
1318 * - decoding: set by decoder
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1319 */
1320 int dtg_active_format;
1321#define FF_DTG_AFD_SAME 8
1322#define FF_DTG_AFD_4_3 9
1323#define FF_DTG_AFD_16_9 10
1324#define FF_DTG_AFD_14_9 11
1325#define FF_DTG_AFD_4_3_SP_14_9 13
1326#define FF_DTG_AFD_16_9_SP_14_9 14
1327#define FF_DTG_AFD_SP_4_3 15
1328
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1329 /**
1330 * Maximum motion estimation search range in subpel units.
1331 * if 0 then no limit
1332 *
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1333 * - encoding: set by user.
1334 * - decoding: unused.
ebbcdc9a 1335 */
59e0ac8e 1336 int me_range;
ebbcdc9a 1337
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1338 /**
1339 * frame_rate_base.
1340 * for variable fps this is 1
1341 * - encoding: set by user.
1342 * - decoding: set by lavc.
1343 * @todo move this after frame_rate
1344 */
65f7062d 1345
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1346 int frame_rate_base;
1347 /**
1348 * intra quantizer bias.
1349 * - encoding: set by user.
1350 * - decoding: unused
1351 */
1352 int intra_quant_bias;
1353#define FF_DEFAULT_QUANT_BIAS 999999
1354
1355 /**
1356 * inter quantizer bias.
1357 * - encoding: set by user.
1358 * - decoding: unused
1359 */
1360 int inter_quant_bias;
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1361
1362 /**
1363 * color table ID.
1364 * - encoding: unused.
1365 * - decoding: which clrtable should be used for 8bit RGB images
1366 * table have to be stored somewhere FIXME
1367 */
1368 int color_table_id;
1984f635 1369
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1370 /**
1371 * internal_buffer count.
1372 * Dont touch, used by lavc default_get_buffer()
1373 */
1374 int internal_buffer_count;
1375
1376 /**
1377 * internal_buffers.
1378 * Dont touch, used by lavc default_get_buffer()
1379 */
1380 void *internal_buffer;
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1381
1382#define FF_LAMBDA_SHIFT 7
1383#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1384#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1385#define FF_LAMBDA_MAX (256*128-1)
1386
1387#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
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1388 /**
1389 * global quality for codecs which cannot change it per frame.
1390 * this should be proportional to MPEG1/2/4 qscale.
1391 * - encoding: set by user.
1392 * - decoding: unused
1393 */
1394 int global_quality;
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1395
1396#define FF_CODER_TYPE_VLC 0
1397#define FF_CODER_TYPE_AC 1
1398 /**
1399 * coder type
1400 * - encoding: set by user.
1401 * - decoding: unused
1402 */
1403 int coder_type;
1404
1405 /**
1406 * context model
1407 * - encoding: set by user.
1408 * - decoding: unused
1409 */
1410 int context_model;
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1411
1412 /**
1413 * slice flags
1414 * - encoding: unused
1415 * - decoding: set by user.
1416 */
1417 int slice_flags;
1418#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
1419#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1420#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1421
fb364ada
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1422 /**
1423 * XVideo Motion Acceleration
1424 * - encoding: forbidden
1425 * - decoding: set by decoder
1426 */
1427 int xvmc_acceleration;
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1428
1429 /**
1430 * macroblock decision mode
1431 * - encoding: set by user.
1432 * - decoding: unused
1433 */
1434 int mb_decision;
1435#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
1436#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
1437#define FF_MB_DECISION_RD 2 ///< rate distoration
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1438
1439 /**
1440 * custom intra quantization matrix
1441 * - encoding: set by user, can be NULL
1442 * - decoding: set by lavc
1443 */
1444 uint16_t *intra_matrix;
1445
1446 /**
1447 * custom inter quantization matrix
1448 * - encoding: set by user, can be NULL
1449 * - decoding: set by lavc
1450 */
1451 uint16_t *inter_matrix;
7d1c3fc1 1452
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1453 /**
1454 * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1455 * this is used to workaround some encoder bugs
1456 * - encoding: unused
1457 * - decoding: set by user, will be converted to upper case by lavc during init
1458 */
1459 unsigned int stream_codec_tag;
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1460
1461 /**
1462 * scene change detection threshold.
1463 * 0 is default, larger means fewer detected scene changes
1464 * - encoding: set by user.
1465 * - decoding: unused
1466 */
1467 int scenechange_threshold;
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1468
1469 /**
1470 * minimum lagrange multipler
1471 * - encoding: set by user.
1472 * - decoding: unused
1473 */
1474 int lmin;
1475
1476 /**
1477 * maximum lagrange multipler
1478 * - encoding: set by user.
1479 * - decoding: unused
1480 */
1481 int lmax;
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MM
1482
1483 /**
1484 * Palette control structure
1485 * - encoding: ??? (no palette-enabled encoder yet)
1486 * - decoding: set by user.
1487 */
1488 struct AVPaletteControl *palctrl;
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1489
1490 /**
1491 * noise reduction strength
1492 * - encoding: set by user.
1493 * - decoding: unused
1494 */
1495 int noise_reduction;
fa384dcc 1496
074c4ca7 1497 /**
e1c2a5a0
RT
1498 * called at the beginning of a frame to get cr buffer for it.
1499 * buffer type (size, hints) must be the same. lavc won't check it.
1500 * lavc will pass previous buffer in pic, function should return
1501 * same buffer or new buffer with old frame "painted" into it.
1502 * if pic.data[0] == NULL must behave like get_buffer().
074c4ca7 1503 * - encoding: unused
e1c2a5a0 1504 * - decoding: set by lavc, user can override
074c4ca7 1505 */
e1c2a5a0 1506 int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
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1507
1508 /**
1509 * number of bits which should be loaded into the rc buffer before decoding starts
1510 * - encoding: set by user.
1511 * - decoding: unused
1512 */
1513 int rc_initial_buffer_occupancy;
1514
1515 /**
1516 *
1517 * - encoding: set by user.
1518 * - decoding: unused
1519 */
1520 int inter_threshold;
1521
1522 /**
1523 * CODEC_FLAG2_*.
1524 * - encoding: set by user.
1525 * - decoding: set by user.
1526 */
1527 int flags2;
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1528
1529 /**
1530 * simulates errors in the bitstream to test error concealment.
1531 * - encoding: set by user.
1532 * - decoding: unused.
1533 */
1534 int error_rate;
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1535
1536 /**
1537 * MP3 antialias algorithm, see FF_AA_* below.
1538 * - encoding: unused
1539 * - decoding: set by user
1540 */
1541 int antialias_algo;
1542#define FF_AA_AUTO 0
1543#define FF_AA_FASTINT 1 //not implemented yet
1544#define FF_AA_INT 2
1545#define FF_AA_FLOAT 3
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1546 /**
1547 * Quantizer noise shaping.
1548 * - encoding: set by user
1549 * - decoding: unused
1550 */
1551 int quantizer_noise_shaping;
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1552
1553 /**
1554 * Thread count.
1555 * is used to decide how many independant tasks should be passed to execute()
1556 * - encoding: set by user
1557 * - decoding: set by user
1558 */
1559 int thread_count;
1560
1561 /**
1562 * the codec may call this to execute several independant things. it will return only after
1563 * finishing all tasks, the user may replace this with some multithreaded implementation, the
1564 * default implementation will execute the parts serially
399cec2f 1565 * @param count the number of things to execute
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1566 * - encoding: set by lavc, user can override
1567 * - decoding: set by lavc, user can override
1568 */
1569 int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1570
1571 /**
1572 * Thread opaque.
1573 * can be used by execute() to store some per AVCodecContext stuff.
1574 * - encoding: set by execute()
1575 * - decoding: set by execute()
1576 */
1577 void *thread_opaque;
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1578
1579 /**
f20f8a8b
MN
1580 * Motion estimation threshold. under which no motion estimation is
1581 * performed, but instead the user specified motion vectors are used
a4d36c11
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1582 *
1583 * - encoding: set by user
f20f8a8b 1584 * - decoding: unused
a4d36c11 1585 */
2750b827 1586 int me_threshold;
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1587
1588 /**
1589 * Macroblock threshold. under which the user specified macroblock types will be used
1590 * - encoding: set by user
1591 * - decoding: unused
1592 */
1593 int mb_threshold;
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1594
1595 /**
d4c5d2ad 1596 * precision of the intra dc coefficient - 8.
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1597 * - encoding: set by user
1598 * - decoding: unused
1599 */
1600 int intra_dc_precision;
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1601
1602 /**
1603 * noise vs. sse weight for the nsse comparsion function.
1604 * - encoding: set by user
1605 * - decoding: unused
1606 */
1607 int nsse_weight;
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1608} AVCodecContext;
1609
97d96aaa 1610
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1611/**
1612 * AVOption.
1613 */
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1614typedef struct AVOption {
1615 /** options' name */
1616 const char *name; /* if name is NULL, it indicates a link to next */
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1617 /** short English text help or const struct AVOption* subpointer */
1618 const char *help; // const struct AVOption* sub;
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1619 /** offset to context structure where the parsed value should be stored */
1620 int offset;
1621 /** options' type */
1622 int type;
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1623#define FF_OPT_TYPE_BOOL 1 ///< boolean - true,1,on (or simply presence)
1624#define FF_OPT_TYPE_DOUBLE 2 ///< double
1625#define FF_OPT_TYPE_INT 3 ///< integer
1626#define FF_OPT_TYPE_STRING 4 ///< string (finished with \0)
1627#define FF_OPT_TYPE_MASK 0x1f ///< mask for types - upper bits are various flags
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1628//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1629#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1630#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1631 /** min value (min == max -> no limits) */
1632 double min;
1633 /** maximum value for double/int */
1634 double max;
1635 /** default boo [0,1]l/double/int value */
1636 double defval;
1637 /**
1638 * default string value (with optional semicolon delimited extra option-list
1639 * i.e. option1;option2;option3
1640 * defval might select other then first argument as default
1641 */
1642 const char *defstr;
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1643#define FF_OPT_MAX_DEPTH 10
1644} AVOption;
1645
64863965 1646/**
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1647 * Parse option(s) and sets fields in passed structure
1648 * @param strct structure where the parsed results will be written
1649 * @param list list with AVOptions
1650 * @param opts string with options for parsing
1651 */
1652int avoption_parse(void* strct, const AVOption* list, const char* opts);
1653
1654
1655/**
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1656 * AVCodec.
1657 */
de6d9b64 1658typedef struct AVCodec {
18f77016 1659 const char *name;
5d234974 1660 enum CodecType type;
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FB
1661 int id;
1662 int priv_data_size;
1663 int (*init)(AVCodecContext *);
0c1a9eda 1664 int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
de6d9b64 1665 int (*close)(AVCodecContext *);
0fd90455 1666 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
0c1a9eda 1667 uint8_t *buf, int buf_size);
bf89e6b1 1668 int capabilities;
97d96aaa 1669 const AVOption *options;
de6d9b64 1670 struct AVCodec *next;
7a06ff14 1671 void (*flush)(AVCodecContext *);
b0df362b 1672 const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
fcee0164 1673 const enum PixelFormat *pix_fmts; ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
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1674} AVCodec;
1675
97d96aaa 1676/**
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1677 * four components are given, that's all.
1678 * the last component is alpha
1679 */
de6d9b64 1680typedef struct AVPicture {
0c1a9eda 1681 uint8_t *data[4];
cd394651 1682 int linesize[4]; ///< number of bytes per line
de6d9b64
FB
1683} AVPicture;
1684
ba118447
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1685/**
1686 * AVPaletteControl
1687 * This structure defines a method for communicating palette changes
1688 * between and demuxer and a decoder.
1689 */
2e99641b 1690#define AVPALETTE_SIZE 1024
432d84c3 1691#define AVPALETTE_COUNT 256
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1692typedef struct AVPaletteControl {
1693
1694 /* demuxer sets this to 1 to indicate the palette has changed;
1695 * decoder resets to 0 */
1696 int palette_changed;
1697
2a2bbcb0
MM
1698 /* 4-byte ARGB palette entries, stored in native byte order; note that
1699 * the individual palette components should be on a 8-bit scale; if
1700 * the palette data comes from a IBM VGA native format, the component
1701 * data is probably 6 bits in size and needs to be scaled */
2e99641b 1702 unsigned int palette[AVPALETTE_COUNT];
ba118447
MM
1703
1704} AVPaletteControl;
1705
de6d9b64
FB
1706extern AVCodec ac3_encoder;
1707extern AVCodec mp2_encoder;
9d36bdc9 1708extern AVCodec mp3lame_encoder;
81e0d0b4 1709extern AVCodec oggvorbis_encoder;
29d48296 1710extern AVCodec faac_encoder;
de6d9b64 1711extern AVCodec mpeg1video_encoder;
029911d1 1712extern AVCodec mpeg2video_encoder;
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FB
1713extern AVCodec h263_encoder;
1714extern AVCodec h263p_encoder;
d4f5d74a 1715extern AVCodec flv_encoder;
de6d9b64 1716extern AVCodec rv10_encoder;
68b94c35 1717extern AVCodec rv20_encoder;
6faa4645 1718extern AVCodec dvvideo_encoder;
de6d9b64 1719extern AVCodec mjpeg_encoder;
b1e6b355 1720extern AVCodec ljpeg_encoder;
bf89e6b1 1721extern AVCodec mpeg4_encoder;
84afee34
MN
1722extern AVCodec msmpeg4v1_encoder;
1723extern AVCodec msmpeg4v2_encoder;
1724extern AVCodec msmpeg4v3_encoder;
0151a6f5
MN
1725extern AVCodec wmv1_encoder;
1726extern AVCodec wmv2_encoder;
11f18faf 1727extern AVCodec huffyuv_encoder;
0da71265 1728extern AVCodec h264_encoder;
3d2e8cce 1729extern AVCodec asv1_encoder;
9b56edf5 1730extern AVCodec asv2_encoder;
be3564ed 1731extern AVCodec vcr1_encoder;
5e20f836 1732extern AVCodec ffv1_encoder;
c3bf0288 1733extern AVCodec mdec_encoder;
a273bbfb 1734extern AVCodec zlib_encoder;
3b64893d 1735extern AVCodec svq1_encoder;
de6d9b64
FB
1736
1737extern AVCodec h263_decoder;
c6148de2 1738extern AVCodec h261_decoder;
bf89e6b1 1739extern AVCodec mpeg4_decoder;
84afee34
MN
1740extern AVCodec msmpeg4v1_decoder;
1741extern AVCodec msmpeg4v2_decoder;
1742extern AVCodec msmpeg4v3_decoder;
e1a9dbff 1743extern AVCodec wmv1_decoder;
0151a6f5 1744extern AVCodec wmv2_decoder;
922bc38d
MN
1745extern AVCodec mpeg1video_decoder;
1746extern AVCodec mpeg2video_decoder;
c512b303 1747extern AVCodec mpegvideo_decoder;
fb364ada 1748extern AVCodec mpeg_xvmc_decoder;
de6d9b64 1749extern AVCodec h263i_decoder;
d4f5d74a 1750extern AVCodec flv_decoder;
de6d9b64 1751extern AVCodec rv10_decoder;
68b94c35 1752extern AVCodec rv20_decoder;
be8ffec9 1753extern AVCodec svq1_decoder;
8b82a956 1754extern AVCodec svq3_decoder;
020fcc94 1755extern AVCodec dvvideo_decoder;
bc8d1857
FB
1756extern AVCodec wmav1_decoder;
1757extern AVCodec wmav2_decoder;
4e66ab3b 1758extern AVCodec mjpeg_decoder;
b135d9fb 1759extern AVCodec mjpegb_decoder;
5e83dec4 1760extern AVCodec sp5x_decoder;
4b1f4f23 1761extern AVCodec mp2_decoder;
a96b68b7 1762extern AVCodec mp3_decoder;
3f95e843
FR
1763extern AVCodec mace3_decoder;
1764extern AVCodec mace6_decoder;
11f18faf 1765extern AVCodec huffyuv_decoder;
3aca208a 1766extern AVCodec oggvorbis_decoder;
f70f7c6d 1767extern AVCodec cyuv_decoder;
0da71265 1768extern AVCodec h264_decoder;
deabd4fd 1769extern AVCodec indeo3_decoder;
d86053a4 1770extern AVCodec vp3_decoder;
f44ee2c3 1771extern AVCodec theora_decoder;
891f64b3 1772extern AVCodec amr_nb_decoder;
bc634f6f 1773extern AVCodec amr_nb_encoder;
d663a1fd
MN
1774extern AVCodec amr_wb_encoder;
1775extern AVCodec amr_wb_decoder;
280bd7b7
ZK
1776extern AVCodec aac_decoder;
1777extern AVCodec mpeg4aac_decoder;
3d2e8cce 1778extern AVCodec asv1_decoder;
9b56edf5 1779extern AVCodec asv2_decoder;
be3564ed 1780extern AVCodec vcr1_decoder;
3aff069b 1781extern AVCodec cljr_decoder;
5e20f836 1782extern AVCodec ffv1_decoder;
8809cfee 1783extern AVCodec fourxm_decoder;
c3bf0288 1784extern AVCodec mdec_decoder;
3ef8be2b
MM
1785extern AVCodec roq_decoder;
1786extern AVCodec interplay_video_decoder;
9937e686 1787extern AVCodec xan_wc3_decoder;
2fdf638b
MM
1788extern AVCodec rpza_decoder;
1789extern AVCodec cinepak_decoder;
1790extern AVCodec msrle_decoder;
1791extern AVCodec msvideo1_decoder;
6955a882 1792extern AVCodec vqa_decoder;
4120a53a 1793extern AVCodec idcin_decoder;
1dc1ed99 1794extern AVCodec eightbps_decoder;
11e29a41 1795extern AVCodec smc_decoder;
42cad81a 1796extern AVCodec flic_decoder;
fafa0b75
MM
1797extern AVCodec vmdvideo_decoder;
1798extern AVCodec vmdaudio_decoder;
9a4117d5 1799extern AVCodec truemotion1_decoder;
a273bbfb
RT
1800extern AVCodec mszh_decoder;
1801extern AVCodec zlib_decoder;
b8414bbd
NK
1802extern AVCodec ra_144_decoder;
1803extern AVCodec ra_288_decoder;
3ef8be2b
MM
1804extern AVCodec roq_dpcm_decoder;
1805extern AVCodec interplay_dpcm_decoder;
9937e686 1806extern AVCodec xan_dpcm_decoder;
070ed1bc 1807extern AVCodec qtrle_decoder;
ac2570a8 1808extern AVCodec flac_decoder;
de6d9b64 1809
a96b68b7
FB
1810/* pcm codecs */
1811#define PCM_CODEC(id, name) \
1812extern AVCodec name ## _decoder; \
f11d3f23 1813extern AVCodec name ## _encoder
a96b68b7
FB
1814
1815PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1816PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1817PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1818PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1819PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1820PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1821PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1822PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1823
0147f198
FR
1824/* adpcm codecs */
1825
1826PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1827PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
9937e686
MM
1828PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1829PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2fdf638b 1830PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
7d8379f2 1831PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
0147f198 1832PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
4b465299 1833PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
fc384777
MM
1834PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1835PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
7d8379f2 1836PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
e5966052 1837PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
0147f198 1838
a96b68b7
FB
1839#undef PCM_CODEC
1840
1841/* dummy raw video codec */
63167088
RS
1842extern AVCodec rawvideo_encoder;
1843extern AVCodec rawvideo_decoder;
de6d9b64
FB
1844
1845/* the following codecs use external GPL libs */
de6d9b64
FB
1846extern AVCodec ac3_decoder;
1847
1848/* resample.c */
1849
1850struct ReSampleContext;
aaaf1635 1851struct AVResampleContext;
de6d9b64
FB
1852
1853typedef struct ReSampleContext ReSampleContext;
1854
1855ReSampleContext *audio_resample_init(int output_channels, int input_channels,
1856 int output_rate, int input_rate);
1857int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1858void audio_resample_close(ReSampleContext *s);
1859
aaaf1635
MN
1860struct AVResampleContext *av_resample_init(int out_rate, int in_rate);
1861int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
1862
de6d9b64
FB
1863/* YUV420 format is assumed ! */
1864
1865struct ImgReSampleContext;
1866
1867typedef struct ImgReSampleContext ImgReSampleContext;
1868
1869ImgReSampleContext *img_resample_init(int output_width, int output_height,
1870 int input_width, int input_height);
ab6d194a
MN
1871
1872ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1873 int iwidth, int iheight,
1874 int topBand, int bottomBand,
1ff93ffc
TK
1875 int leftBand, int rightBand,
1876 int padtop, int padbottom,
1877 int padleft, int padright);
1878
ab6d194a 1879
de6d9b64 1880void img_resample(ImgReSampleContext *s,
da64ecc3 1881 AVPicture *output, const AVPicture *input);
de6d9b64
FB
1882
1883void img_resample_close(ImgReSampleContext *s);
1884
75917b88
DH
1885/**
1886 * Allocate memory for a picture. Call avpicture_free to free it.
1887 *
1888 * @param picture the picture to be filled in.
1889 * @param pix_fmt the format of the picture.
1890 * @param width the width of the picture.
1891 * @param height the height of the picture.
1892 * @return 0 if successful, -1 if not.
1893 */
1894int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1895
1896/* Free a picture previously allocated by avpicture_alloc. */
1897void avpicture_free(AVPicture *picture);
1898
0c1a9eda 1899int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2d1a4094 1900 int pix_fmt, int width, int height);
da64ecc3 1901int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
63167088 1902 unsigned char *dest, int dest_size);
219b06c6 1903int avpicture_get_size(int pix_fmt, int width, int height);
dab64ebc
FB
1904void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1905const char *avcodec_get_pix_fmt_name(int pix_fmt);
63167088 1906enum PixelFormat avcodec_get_pix_fmt(const char* name);
219b06c6 1907
fab21997
FB
1908#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
1909#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
1910#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
1911#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
1912#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
1913#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1914
1915int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1916 int has_alpha);
1917int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1918 int has_alpha, int *loss_ptr);
1919
0469baf1
FB
1920#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
1921#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
da64ecc3
DH
1922int img_get_alpha_info(const AVPicture *src,
1923 int pix_fmt, int width, int height);
0469baf1 1924
219b06c6
FB
1925/* convert among pixel formats */
1926int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 1927 const AVPicture *src, int pix_fmt,
219b06c6
FB
1928 int width, int height);
1929
1930/* deinterlace a picture */
da64ecc3 1931int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
1932 int pix_fmt, int width, int height);
1933
1934/* external high level API */
1935
1936extern AVCodec *first_avcodec;
1937
156e5023 1938/* returns LIBAVCODEC_VERSION_INT constant */
51a49663 1939unsigned avcodec_version(void);
8bceb6af 1940/* returns LIBAVCODEC_BUILD constant */
51a49663 1941unsigned avcodec_build(void);
de6d9b64
FB
1942void avcodec_init(void);
1943
1944void register_avcodec(AVCodec *format);
1945AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 1946AVCodec *avcodec_find_encoder_by_name(const char *name);
de6d9b64
FB
1947AVCodec *avcodec_find_decoder(enum CodecID id);
1948AVCodec *avcodec_find_decoder_by_name(const char *name);
1949void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1950
1e491e29 1951void avcodec_get_context_defaults(AVCodecContext *s);
7ffbb60e 1952AVCodecContext *avcodec_alloc_context(void);
7906085f 1953void avcodec_get_frame_defaults(AVFrame *pic);
492cd3a9 1954AVFrame *avcodec_alloc_frame(void);
1e491e29 1955
492cd3a9
MN
1956int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1957void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
3a569751
MN
1958int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
1959void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
1960enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
1e491e29 1961
5a815088
MN
1962int avcodec_thread_init(AVCodecContext *s, int thread_count);
1963void avcodec_thread_free(AVCodecContext *s);
1964int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
3a569751 1965int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
9c3d33d6
MN
1966//FIXME func typedef
1967
7a06ff14
MN
1968/**
1969 * opens / inits the AVCodecContext.
1970 * not thread save!
1971 */
de6d9b64 1972int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
7a06ff14 1973
0c1a9eda 1974int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 1975 int *frame_size_ptr,
0c1a9eda 1976 uint8_t *buf, int buf_size);
492cd3a9 1977int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 1978 int *got_picture_ptr,
0c1a9eda
ZK
1979 uint8_t *buf, int buf_size);
1980int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
917e06c8 1981 int *data_size_ptr,
0c1a9eda
ZK
1982 uint8_t *buf, int buf_size);
1983int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64 1984 const short *samples);
0c1a9eda 1985int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 1986 const AVFrame *pict);
de6d9b64
FB
1987
1988int avcodec_close(AVCodecContext *avctx);
1989
1990void avcodec_register_all(void);
a96b68b7 1991
1c2a8c7f
MN
1992void avcodec_flush_buffers(AVCodecContext *avctx);
1993
14bea432 1994/* misc usefull functions */
d8085ea7
MN
1995
1996/**
1997 * returns a single letter to describe the picture type
1998 */
1999char av_get_pict_type_char(int pict_type);
2000
14bea432
MN
2001/**
2002 * reduce a fraction.
2003 * this is usefull for framerate calculations
2004 * @param max the maximum allowed for dst_nom & dst_den
2005 * @return 1 if exact, 0 otherwise
2006 */
2007int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2008
2009/**
2010 * rescale a 64bit integer.
2011 * a simple a*b/c isnt possible as it can overflow
2012 */
4c263142 2013int64_t av_rescale(int64_t a, int64_t b, int64_t c);
628d601b 2014
628d601b 2015
e8f14793
ZK
2016/**
2017 * Interface for 0.5.0 version
2018 *
2019 * do not even think about it's usage for this moment
2020 */
2021
2022typedef struct {
64863965 2023 /// compressed size used from given memory buffer
e8f14793
ZK
2024 int size;
2025 /// I/P/B frame type
2026 int frame_type;
2027} avc_enc_result_t;
2028
2029/**
2030 * Commands
2031 * order can't be changed - once it was defined
2032 */
2033typedef enum {
2034 // general commands
2035 AVC_OPEN_BY_NAME = 0xACA000,
2036 AVC_OPEN_BY_CODEC_ID,
2037 AVC_OPEN_BY_FOURCC,
2038 AVC_CLOSE,
2039
2040 AVC_FLUSH,
2041 // pin - struct { uint8_t* src, uint_t src_size }
2042 // pout - struct { AVPicture* img, consumed_bytes,
2043 AVC_DECODE,
2044 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
2045 // pout - uint_t used_from_dest_size
2046 AVC_ENCODE,
2047
2048 // query/get video commands
2049 AVC_GET_VERSION = 0xACB000,
2050 AVC_GET_WIDTH,
2051 AVC_GET_HEIGHT,
2052 AVC_GET_DELAY,
2053 AVC_GET_QUANT_TABLE,
2054 // ...
2055
2056 // query/get audio commands
2057 AVC_GET_FRAME_SIZE = 0xABC000,
2058
2059 // maybe define some simple structure which
2060 // might be passed to the user - but they can't
2061 // contain any codec specific parts and these
2062 // calls are usualy necessary only few times
2063
2064 // set video commands
2065 AVC_SET_WIDTH = 0xACD000,
2066 AVC_SET_HEIGHT,
2067
2068 // set video encoding commands
2069 AVC_SET_FRAME_RATE = 0xACD800,
2070 AVC_SET_QUALITY,
2071 AVC_SET_HURRY_UP,
2072
2073 // set audio commands
2074 AVC_SET_SAMPLE_RATE = 0xACE000,
2075 AVC_SET_CHANNELS,
2076
2077} avc_cmd_t;
2078
2079/**
2080 * \param handle allocated private structure by libavcodec
2081 * for initialization pass NULL - will be returned pout
2082 * user is supposed to know nothing about its structure
2083 * \param cmd type of operation to be performed
2084 * \param pint input parameter
2085 * \param pout output parameter
2086 *
2087 * \returns command status - eventually for query command it might return
2088 * integer resulting value
2089 */
2090int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
2091
8424cf50
FB
2092/* frame parsing */
2093typedef struct AVCodecParserContext {
2094 void *priv_data;
2095 struct AVCodecParser *parser;
2096 int64_t frame_offset; /* offset of the current frame */
2097 int64_t cur_offset; /* current offset
2098 (incremented by each av_parser_parse()) */
2099 int64_t last_frame_offset; /* offset of the last frame */
2100 /* video info */
2101 int pict_type; /* XXX: put it back in AVCodecContext */
2102 int repeat_pict; /* XXX: put it back in AVCodecContext */
b84f2a35
FB
2103 int64_t pts; /* pts of the current frame */
2104 int64_t dts; /* dts of the current frame */
2105
2106 /* private data */
2107 int64_t last_pts;
2108 int64_t last_dts;
a62aecce 2109 int fetch_timestamp;
b84f2a35
FB
2110
2111#define AV_PARSER_PTS_NB 4
2112 int cur_frame_start_index;
2113 int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2114 int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2115 int64_t cur_frame_dts[AV_PARSER_PTS_NB];
8424cf50
FB
2116} AVCodecParserContext;
2117
2118typedef struct AVCodecParser {
2119 int codec_ids[3]; /* several codec IDs are permitted */
2120 int priv_data_size;
2121 int (*parser_init)(AVCodecParserContext *s);
2122 int (*parser_parse)(AVCodecParserContext *s,
2123 AVCodecContext *avctx,
2124 uint8_t **poutbuf, int *poutbuf_size,
2125 const uint8_t *buf, int buf_size);
2126 void (*parser_close)(AVCodecParserContext *s);
2127 struct AVCodecParser *next;
2128} AVCodecParser;
2129
2130extern AVCodecParser *av_first_parser;
2131
2132void av_register_codec_parser(AVCodecParser *parser);
2133AVCodecParserContext *av_parser_init(int codec_id);
2134int av_parser_parse(AVCodecParserContext *s,
2135 AVCodecContext *avctx,
2136 uint8_t **poutbuf, int *poutbuf_size,
b84f2a35
FB
2137 const uint8_t *buf, int buf_size,
2138 int64_t pts, int64_t dts);
8424cf50
FB
2139void av_parser_close(AVCodecParserContext *s);
2140
2141extern AVCodecParser mpegvideo_parser;
2142extern AVCodecParser mpeg4video_parser;
c6148de2 2143extern AVCodecParser h261_parser;
8424cf50
FB
2144extern AVCodecParser h263_parser;
2145extern AVCodecParser h264_parser;
2146extern AVCodecParser mpegaudio_parser;
2147extern AVCodecParser ac3_parser;
2148
544eb99c 2149/* memory */
e4eadb4b 2150void *av_malloc(unsigned int size);
18f77016 2151void *av_mallocz(unsigned int size);
8e1e6f31 2152void *av_realloc(void *ptr, unsigned int size);
544eb99c 2153void av_free(void *ptr);
8e1e6f31 2154char *av_strdup(const char *s);
81c5f887 2155void av_freep(void *ptr);
97d96aaa 2156void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
855ea723
ZK
2157/* for static data only */
2158/* call av_free_static to release all staticaly allocated tables */
628d601b 2159void av_free_static(void);
8d1f2ba5 2160void *av_mallocz_static(unsigned int size);
544eb99c 2161
fc384777
MM
2162/* add by bero : in adx.c */
2163int is_adx(const unsigned char *buf,size_t bufsize);
2164
e1c2a5a0
RT
2165void img_copy(AVPicture *dst, const AVPicture *src,
2166 int pix_fmt, int width, int height);
2167
9b879566
MB
2168/* av_log API */
2169
2170#include <stdarg.h>
2171
d8019eb5 2172#define AV_LOG_QUIET -1
9b879566
MB
2173#define AV_LOG_ERROR 0
2174#define AV_LOG_INFO 1
2175#define AV_LOG_DEBUG 2
2176
f4bd8cf0 2177#ifdef __GNUC__
bc874dae 2178extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
f4bd8cf0
MN
2179#else
2180extern void av_log(void*, int level, const char *fmt, ...);
2181#endif
2182
bc874dae 2183extern void av_vlog(void*, int level, const char *fmt, va_list);
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MB
2184extern int av_log_get_level(void);
2185extern void av_log_set_level(int);
bc874dae 2186extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
9b879566 2187
3a278992 2188/* endian macros */
e96682e6 2189#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
3a278992
MM
2190#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2191#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
2192 (((uint8_t*)(x))[1] << 16) | \
2193 (((uint8_t*)(x))[2] << 8) | \
2194 ((uint8_t*)(x))[3])
2195#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2196#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \
2197 (((uint8_t*)(x))[2] << 16) | \
2198 (((uint8_t*)(x))[1] << 8) | \
2199 ((uint8_t*)(x))[0])
e96682e6 2200#endif
3a278992 2201
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ZK
2202#ifdef __cplusplus
2203}
2204#endif
2205
a96b68b7 2206#endif /* AVCODEC_H */