6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4624
9 #define LIBAVCODEC_BUILD_STR "4624"
32 /* various pcm "codecs" */
42 /* various adpcm codecs */
43 CODEC_ID_ADPCM_IMA_QT,
44 CODEC_ID_ADPCM_IMA_WAV,
47 #define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
50 CODEC_TYPE_UNKNOWN = -1,
68 /* currently unused, may be used if 24/32 bits samples ever supported */
70 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
74 #define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
76 /* motion estimation type, EPZS by default */
86 typedef struct RcOverride{
89 int qscale; // if this is 0 then quality_factor will be used instead
93 /* only for ME compatiblity with old apps */
94 extern int motion_estimation_method;
96 /* ME algos sorted by quality */
97 static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
98 ME_X1, ME_EPZS, ME_FULL };
101 #define FF_MAX_B_FRAMES 4
104 these flags can be passed in AVCodecContext.flags before initing
105 Note: note not everything is supported yet
108 #define CODEC_FLAG_HQ 0x0001 /* high quality (non real time) encoding */
109 #define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
110 #define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
111 #define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
112 #define CODEC_FLAG_GMC 0x0020 /* use GMC */
113 #define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
114 #define CODEC_FLAG_PART 0x0080 /* use data partitioning */
115 /* parent program gurantees that the input for b-frame containing streams is not written to
116 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
117 #define CODEC_FLAG_INPUT_PRESERVED 0x0100
118 #define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
119 #define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
120 #define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
121 #define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
122 #define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
123 #define CODEC_FLAG_DR1 0x8000 /* dr1 */
124 #define CODEC_FLAG_NOT_TRUNCATED 0x00010000 /* input bitstream is not truncated, except before a startcode */
125 /* codec capabilities */
127 /* decoder can use draw_horiz_band callback */
128 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
129 #define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
130 /* if 'parse_only' field is true, then avcodec_parse_frame() can be
132 #define CODEC_CAP_PARSE_ONLY 0x0004
134 #define FRAME_RATE_BASE 10000
136 typedef struct AVCodecContext {
138 int bit_rate_tolerance; /* amount of +- bits (>0)*/
140 int sub_id; /* some codecs needs additionnal format info. It is
143 int me_method; /* ME algorithm used for video coding */
145 /* extra data from parent application to codec, e.g. huffman table
147 /* the parent should allocate and free this buffer */
152 int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
154 int aspect_ratio_info;
155 #define FF_ASPECT_SQUARE 1
156 #define FF_ASPECT_4_3_625 2
157 #define FF_ASPECT_4_3_525 3
158 #define FF_ASPECT_16_9_625 4
159 #define FF_ASPECT_16_9_525 5
160 #define FF_ASPECT_EXTENDED 15
161 int gop_size; /* 0 = intra only */
162 enum PixelFormat pix_fmt; /* pixel format, see PIX_FMT_xxx */
163 int repeat_pict; /* when decoding, this signal how much the picture */
164 /* must be delayed. */
165 /* extra_delay = (repeat_pict / 2) * (1/fps) */
166 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
167 decoder to draw an horizontal band. It improve cache usage. Not
168 all codecs can do that. You must check the codec capabilities
170 void (*draw_horiz_band)(struct AVCodecContext *s,
171 UINT8 **src_ptr, int linesize,
172 int y, int width, int height);
175 int sample_rate; /* samples per sec */
177 int sample_fmt; /* sample format, currenly unused */
179 /* the following data should not be initialized */
180 int frame_size; /* in samples, initialized when calling 'init' */
181 int frame_number; /* audio or video frame number */
182 int real_pict_num; /* returns the real picture number of
183 previous encoded frame */
184 int key_frame; /* true if the previous compressed frame was
185 a key frame (intra, or seekable) */
186 int pict_type; /* picture type of the previous
188 /* FIXME: these should have FF_ */
189 #define I_TYPE 1 // Intra
190 #define P_TYPE 2 // Predicted
191 #define B_TYPE 3 // Bi-dir predicted
192 #define S_TYPE 4 // S(GMC)-VOP MPEG4
194 int delay; /* number of frames the decoded output
195 will be delayed relative to the encoded input */
196 uint8_t *mbskip_table; /* =1 if MB didnt change, is only valid for I/P frames
197 stride= mb_width = (width+15)>>4 */
199 /* encoding parameters */
200 int quality; /* quality of the previous encoded frame
201 (between 1 (good) and 31 (bad))
202 this is allso used to set the quality in vbr mode
203 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
204 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
205 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
206 int qmin; /* min qscale */
207 int qmax; /* max qscale */
208 int max_qdiff; /* max qscale difference between frames */
209 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
210 float b_quant_factor;/* qscale factor between ps and b frames */
211 int rc_strategy; /* obsolete FIXME remove */
212 int b_frame_strategy;
214 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
215 when set to 2 idct/dequant will be skipped too */
217 struct AVCodec *codec;
220 /* The following data is for RTP friendly coding */
221 /* By now only H.263/H.263+/MPEG4 coder honours this */
222 int rtp_mode; /* 1 for activate RTP friendly-mode */
223 /* highers numbers represent more error-prone */
224 /* enviroments, by now just "1" exist */
226 int rtp_payload_size; /* The size of the RTP payload, the coder will */
227 /* do it's best to deliver a chunk with size */
228 /* below rtp_payload_size, the chunk will start */
229 /* with a start code on some codecs like H.263 */
230 /* This doesn't take account of any particular */
231 /* headers inside the transmited RTP payload */
234 /* The RTP callcack: This function is called */
235 /* every time the encoder as a packet to send */
236 /* Depends on the encoder if the data starts */
237 /* with a Start Code (it should) H.263 does */
238 void (*rtp_callback)(void *data, int size, int packet_number);
240 /* These are for PSNR calculation, if you set get_psnr to 1 */
241 /* after encoding you will have the PSNR on psnr_y/cb/cr */
247 /* statistics, used for 2-pass encoding */
255 int misc_bits; // cbp, mb_type
258 /* the following fields are ignored */
259 void *opaque; /* can be used to carry app specific stuff */
261 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
262 enum CodecID codec_id; /* see CODEC_ID_xxx */
263 unsigned int codec_tag; /* codec tag, only used if unknown codec */
265 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
266 int luma_elim_threshold;
267 int chroma_elim_threshold;
268 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
269 float b_quant_offset;/* qscale offset between ips and b frames, not implemented yet */
270 int error_resilience;
276 #define QP_TYPE int //FIXME note xxx this might be changed to int8_t
278 QP_TYPE *quant_store; /* field for communicating with external postprocessing */
281 uint8_t *dr_buffer[3];
283 void *dr_opaque_frame;
284 void (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
286 int has_b_frames; // is 1 if the decoded stream contains b frames
288 int dr_ip_buffer_count;
289 int block_align; /* currently only for adpcm codec in wav/avi */
291 int parse_only; /* decoding only: if true, only parsing is done
292 (function avcodec_parse_frame()). The frame
293 data is returned. Only MPEG codecs support this now. */
295 int mpeg_quant; /* 0-> h263 quant 1-> mpeg quant */
297 char *stats_out; /* encoding statistics output buffer */
298 char *stats_in; /* encoding statistics input buffer (concatenated stuff from stats_out of pass1 should be placed here)*/
302 RcOverride *rc_override;
303 int rc_override_count;
308 float rc_buffer_aggressivity;
309 float i_quant_factor;/* qscale factor between i and p frames */
310 float i_quant_offset;/* qscale offset between i and p frames */
311 float rc_initial_cplx;
317 #define FF_DCT_AUTO 0
318 #define FF_DCT_FASTINT 1
321 #define FF_DCT_MLIB 4
323 long long int pts; /* timestamp in micro seconds
324 for decoding: the timestamp from the stream or 0
325 for encoding: the timestamp which will be stored in the stream
326 if 0 then the frame_rate will be used */
328 //FIXME this should be reordered after kabis API is finished ...
331 Note: Below are located reserved fields for further usage
332 It requires for ABI !!!
333 If you'll perform some changes then borrow new space from these fields
334 (void * can be safety replaced with struct * ;)
336 IMPORTANT: Never change order of already declared fields!!!
338 unsigned long long int
339 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
340 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11;
342 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
343 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
345 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
346 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
348 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
349 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
351 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
352 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
354 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
355 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
357 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,ui_res6,ui_res7,ui_res8,ui_res9,
358 ui_res10,ui_res11,ui_res12,ui_res13,ui_res14,ui_res15,ui_res16;
361 typedef struct AVCodec {
366 int (*init)(AVCodecContext *);
367 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
368 int (*close)(AVCodecContext *);
369 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
370 UINT8 *buf, int buf_size);
372 struct AVCodec *next;
374 Note: Below are located reserved fields for further usage
375 It requires for ABI !!!
376 If you'll perform some changes then borrow new space from these fields
377 (void * can be safety replaced with struct * ;)
379 IMPORTANT: Never change order of already declared fields!!!
381 unsigned long long int
382 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
383 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
385 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
386 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
388 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
389 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
392 /* three components are given, that's all */
393 typedef struct AVPicture {
398 extern AVCodec ac3_encoder;
399 extern AVCodec mp2_encoder;
400 extern AVCodec mp3lame_encoder;
401 extern AVCodec oggvorbis_encoder;
402 extern AVCodec mpeg1video_encoder;
403 extern AVCodec h263_encoder;
404 extern AVCodec h263p_encoder;
405 extern AVCodec rv10_encoder;
406 extern AVCodec mjpeg_encoder;
407 extern AVCodec mpeg4_encoder;
408 extern AVCodec msmpeg4v1_encoder;
409 extern AVCodec msmpeg4v2_encoder;
410 extern AVCodec msmpeg4v3_encoder;
411 extern AVCodec wmv1_encoder;
412 extern AVCodec wmv2_encoder;
414 extern AVCodec h263_decoder;
415 extern AVCodec mpeg4_decoder;
416 extern AVCodec msmpeg4v1_decoder;
417 extern AVCodec msmpeg4v2_decoder;
418 extern AVCodec msmpeg4v3_decoder;
419 extern AVCodec wmv1_decoder;
420 extern AVCodec wmv2_decoder;
421 extern AVCodec mpeg_decoder;
422 extern AVCodec h263i_decoder;
423 extern AVCodec rv10_decoder;
424 extern AVCodec svq1_decoder;
425 extern AVCodec mjpeg_decoder;
426 extern AVCodec mp2_decoder;
427 extern AVCodec mp3_decoder;
430 #define PCM_CODEC(id, name) \
431 extern AVCodec name ## _decoder; \
432 extern AVCodec name ## _encoder;
434 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
435 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
436 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
437 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
438 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
439 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
440 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
441 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
445 PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
446 PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
447 PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
451 /* dummy raw video codec */
452 extern AVCodec rawvideo_codec;
454 /* the following codecs use external GPL libs */
455 extern AVCodec ac3_decoder;
459 struct ReSampleContext;
461 typedef struct ReSampleContext ReSampleContext;
463 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
464 int output_rate, int input_rate);
465 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
466 void audio_resample_close(ReSampleContext *s);
468 /* YUV420 format is assumed ! */
470 struct ImgReSampleContext;
472 typedef struct ImgReSampleContext ImgReSampleContext;
474 ImgReSampleContext *img_resample_init(int output_width, int output_height,
475 int input_width, int input_height);
477 ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
478 int iwidth, int iheight,
479 int topBand, int bottomBand,
480 int leftBand, int rightBand);
482 void img_resample(ImgReSampleContext *s,
483 AVPicture *output, AVPicture *input);
485 void img_resample_close(ImgReSampleContext *s);
487 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
488 int pix_fmt, int width, int height);
489 int avpicture_get_size(int pix_fmt, int width, int height);
491 /* convert among pixel formats */
492 int img_convert(AVPicture *dst, int dst_pix_fmt,
493 AVPicture *src, int pix_fmt,
494 int width, int height);
496 /* deinterlace a picture */
497 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
498 int pix_fmt, int width, int height);
500 /* external high level API */
502 extern AVCodec *first_avcodec;
504 /* returns LIBAVCODEC_VERSION_INT constant */
505 unsigned avcodec_version(void);
506 /* returns LIBAVCODEC_BUILD constant */
507 unsigned avcodec_build(void);
508 void avcodec_init(void);
510 void avcodec_set_bit_exact(void);
512 void register_avcodec(AVCodec *format);
513 AVCodec *avcodec_find_encoder(enum CodecID id);
514 AVCodec *avcodec_find_encoder_by_name(const char *name);
515 AVCodec *avcodec_find_decoder(enum CodecID id);
516 AVCodec *avcodec_find_decoder_by_name(const char *name);
517 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
519 AVCodecContext *avcodec_alloc_context();
520 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
521 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
523 UINT8 *buf, int buf_size);
524 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
525 int *got_picture_ptr,
526 UINT8 *buf, int buf_size);
527 int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
529 UINT8 *buf, int buf_size);
530 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
531 const short *samples);
532 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
533 const AVPicture *pict);
535 int avcodec_close(AVCodecContext *avctx);
537 void avcodec_register_all(void);
539 void avcodec_flush_buffers(AVCodecContext *avctx);
541 #ifdef FF_POSTPROCESS
542 extern int quant_store[MBR+1][MBC+1]; // [Review]
547 * Interface for 0.5.0 version
549 * do not even think about it's usage for this moment
553 // compressed size used from given memory buffer
561 * order can't be changed - once it was defined
565 AVC_OPEN_BY_NAME = 0xACA000,
566 AVC_OPEN_BY_CODEC_ID,
571 // pin - struct { uint8_t* src, uint_t src_size }
572 // pout - struct { AVPicture* img, consumed_bytes,
574 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
575 // pout - uint_t used_from_dest_size
578 // query/get video commands
579 AVC_GET_VERSION = 0xACB000,
586 // query/get audio commands
587 AVC_GET_FRAME_SIZE = 0xABC000,
589 // maybe define some simple structure which
590 // might be passed to the user - but they can't
591 // contain any codec specific parts and these
592 // calls are usualy necessary only few times
594 // set video commands
595 AVC_SET_WIDTH = 0xACD000,
598 // set video encoding commands
599 AVC_SET_FRAME_RATE = 0xACD800,
603 // set audio commands
604 AVC_SET_SAMPLE_RATE = 0xACE000,
610 * \param handle allocated private structure by libavcodec
611 * for initialization pass NULL - will be returned pout
612 * user is supposed to know nothing about its structure
613 * \param cmd type of operation to be performed
614 * \param pint input parameter
615 * \param pout output parameter
617 * \returns command status - eventually for query command it might return
618 * integer resulting value
620 int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
623 void *av_malloc(int size);
624 void *av_mallocz(int size);
625 void av_free(void *ptr);
626 void __av_freep(void **ptr);
627 #define av_freep(p) __av_freep((void **)(p))
629 #endif /* AVCODEC_H */