6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4621
9 #define LIBAVCODEC_BUILD_STR "4621"
31 /* various pcm "codecs" */
41 /* various adpcm codecs */
42 CODEC_ID_ADPCM_IMA_QT,
43 CODEC_ID_ADPCM_IMA_WAV,
46 #define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
49 CODEC_TYPE_UNKNOWN = -1,
67 /* currently unused, may be used if 24/32 bits samples ever supported */
69 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
73 #define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
75 /* motion estimation type, EPZS by default */
85 typedef struct RcOverride{
88 int qscale; // if this is 0 then quality_factor will be used instead
92 /* only for ME compatiblity with old apps */
93 extern int motion_estimation_method;
95 /* ME algos sorted by quality */
96 static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
97 ME_X1, ME_EPZS, ME_FULL };
100 #define FF_MAX_B_FRAMES 4
102 /* encoding support */
103 /* note not everything is supported yet */
105 #define CODEC_FLAG_HQ 0x0001 /* high quality (non real time) encoding */
106 #define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
107 #define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
108 #define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
109 #define CODEC_FLAG_GMC 0x0020 /* use GMC */
110 #define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
111 #define CODEC_FLAG_PART 0x0080 /* use data partitioning */
112 /* parent program gurantees that the input for b-frame containing streams is not written to
113 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
114 #define CODEC_FLAG_INPUT_PRESERVED 0x0100
115 #define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
116 #define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
117 #define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
118 #define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
119 #define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
120 #define CODEC_FLAG_DR1 0x8000 /* dr1 */
121 /* codec capabilities */
123 /* decoder can use draw_horiz_band callback */
124 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
125 #define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
126 /* if 'parse_only' field is true, then avcodec_parse_frame() can be
128 #define CODEC_CAP_PARSE_ONLY 0x0004
130 #define FRAME_RATE_BASE 10000
132 typedef struct AVCodecContext {
134 int bit_rate_tolerance; /* amount of +- bits (>0)*/
136 int sub_id; /* some codecs needs additionnal format info. It is
139 int me_method; /* ME algorithm used for video coding */
141 /* extra data from parent application to codec, e.g. huffman table
143 /* the parent should allocate and free this buffer */
148 int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
150 int aspect_ratio_info;
151 #define FF_ASPECT_SQUARE 1
152 #define FF_ASPECT_4_3_625 2
153 #define FF_ASPECT_4_3_525 3
154 #define FF_ASPECT_16_9_625 4
155 #define FF_ASPECT_16_9_525 5
156 #define FF_ASPECT_EXTENDED 15
157 int gop_size; /* 0 = intra only */
158 enum PixelFormat pix_fmt; /* pixel format, see PIX_FMT_xxx */
159 int repeat_pict; /* when decoding, this signal how much the picture */
160 /* must be delayed. */
161 /* extra_delay = (repeat_pict / 2) * (1/fps) */
162 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
163 decoder to draw an horizontal band. It improve cache usage. Not
164 all codecs can do that. You must check the codec capabilities
166 void (*draw_horiz_band)(struct AVCodecContext *s,
167 UINT8 **src_ptr, int linesize,
168 int y, int width, int height);
171 int sample_rate; /* samples per sec */
173 int sample_fmt; /* sample format, currenly unused */
175 /* the following data should not be initialized */
176 int frame_size; /* in samples, initialized when calling 'init' */
177 int frame_number; /* audio or video frame number */
178 int real_pict_num; /* returns the real picture number of
179 previous encoded frame */
180 int key_frame; /* true if the previous compressed frame was
181 a key frame (intra, or seekable) */
182 int pict_type; /* picture type of the previous
184 /* FIXME: these should have FF_ */
185 #define I_TYPE 1 // Intra
186 #define P_TYPE 2 // Predicted
187 #define B_TYPE 3 // Bi-dir predicted
188 #define S_TYPE 4 // S(GMC)-VOP MPEG4
190 int delay; /* number of frames the decoded output
191 will be delayed relative to the encoded input */
192 uint8_t *mbskip_table; /* =1 if MB didnt change, is only valid for I/P frames
193 stride= mb_width = (width+15)>>4 */
195 /* encoding parameters */
196 int quality; /* quality of the previous encoded frame
197 (between 1 (good) and 31 (bad))
198 this is allso used to set the quality in vbr mode
199 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
200 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
201 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
202 int qmin; /* min qscale */
203 int qmax; /* max qscale */
204 int max_qdiff; /* max qscale difference between frames */
205 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
206 float b_quant_factor;/* qscale factor between ps and b frames */
207 int rc_strategy; /* obsolete FIXME remove */
208 int b_frame_strategy;
210 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
211 when set to 2 idct/dequant will be skipped too */
213 struct AVCodec *codec;
216 /* The following data is for RTP friendly coding */
217 /* By now only H.263/H.263+/MPEG4 coder honours this */
218 int rtp_mode; /* 1 for activate RTP friendly-mode */
219 /* highers numbers represent more error-prone */
220 /* enviroments, by now just "1" exist */
222 int rtp_payload_size; /* The size of the RTP payload, the coder will */
223 /* do it's best to deliver a chunk with size */
224 /* below rtp_payload_size, the chunk will start */
225 /* with a start code on some codecs like H.263 */
226 /* This doesn't take account of any particular */
227 /* headers inside the transmited RTP payload */
230 /* The RTP callcack: This function is called */
231 /* every time the encoder as a packet to send */
232 /* Depends on the encoder if the data starts */
233 /* with a Start Code (it should) H.263 does */
234 void (*rtp_callback)(void *data, int size, int packet_number);
236 /* These are for PSNR calculation, if you set get_psnr to 1 */
237 /* after encoding you will have the PSNR on psnr_y/cb/cr */
243 /* statistics, used for 2-pass encoding */
251 int misc_bits; // cbp, mb_type
254 /* the following fields are ignored */
255 void *opaque; /* can be used to carry app specific stuff */
257 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
258 enum CodecID codec_id; /* see CODEC_ID_xxx */
259 unsigned int codec_tag; /* codec tag, only used if unknown codec */
261 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
262 int luma_elim_threshold;
263 int chroma_elim_threshold;
264 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
265 float b_quant_offset;/* qscale offset between ips and b frames, not implemented yet */
266 int error_resilience;
272 #define QP_TYPE int //FIXME note xxx this might be changed to int8_t
274 QP_TYPE *quant_store; /* field for communicating with external postprocessing */
277 uint8_t *dr_buffer[3];
279 void *dr_opaque_frame;
280 void (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
282 int has_b_frames; // is 1 if the decoded stream contains b frames
284 int dr_ip_buffer_count;
285 int block_align; /* currently only for adpcm codec in wav/avi */
287 int parse_only; /* decoding only: if true, only parsing is done
288 (function avcodec_parse_frame()). The frame
289 data is returned. Only MPEG codecs support this now. */
291 int mpeg_quant; /* 0-> h263 quant 1-> mpeg quant */
293 char *stats_out; /* encoding statistics output buffer */
294 char *stats_in; /* encoding statistics input buffer (concatenated stuff from stats_out of pass1 should be placed here)*/
298 RcOverride *rc_override;
299 int rc_override_count;
304 float rc_buffer_aggressivity;
305 float i_quant_factor;/* qscale factor between i and p frames */
306 float i_quant_offset;/* qscale offset between i and p frames */
307 float rc_initial_cplx;
313 #define FF_DCT_AUTO 0
314 #define FF_DCT_FASTINT 1
318 //FIXME this should be reordered after kabis API is finished ...
321 Note: Below are located reserved fields for further usage
322 It requires for ABI !!!
323 If you'll perform some changes then borrow new space from these fields
324 (void * can be safety replaced with struct * ;)
326 IMPORTANT: Never change order of already declared fields!!!
328 unsigned long long int
329 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
330 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
332 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
333 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
335 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
336 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
338 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
339 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
341 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
342 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
344 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
345 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
347 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,ui_res6,ui_res7,ui_res8,ui_res9,
348 ui_res10,ui_res11,ui_res12,ui_res13,ui_res14,ui_res15,ui_res16;
351 typedef struct AVCodec {
356 int (*init)(AVCodecContext *);
357 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
358 int (*close)(AVCodecContext *);
359 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
360 UINT8 *buf, int buf_size);
362 struct AVCodec *next;
364 Note: Below are located reserved fields for further usage
365 It requires for ABI !!!
366 If you'll perform some changes then borrow new space from these fields
367 (void * can be safety replaced with struct * ;)
369 IMPORTANT: Never change order of already declared fields!!!
371 unsigned long long int
372 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
373 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
375 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
376 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
378 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
379 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
382 /* three components are given, that's all */
383 typedef struct AVPicture {
388 extern AVCodec ac3_encoder;
389 extern AVCodec mp2_encoder;
390 extern AVCodec mp3lame_encoder;
391 extern AVCodec mpeg1video_encoder;
392 extern AVCodec h263_encoder;
393 extern AVCodec h263p_encoder;
394 extern AVCodec rv10_encoder;
395 extern AVCodec mjpeg_encoder;
396 extern AVCodec mpeg4_encoder;
397 extern AVCodec msmpeg4v1_encoder;
398 extern AVCodec msmpeg4v2_encoder;
399 extern AVCodec msmpeg4v3_encoder;
400 extern AVCodec wmv1_encoder;
401 extern AVCodec wmv2_encoder;
403 extern AVCodec h263_decoder;
404 extern AVCodec mpeg4_decoder;
405 extern AVCodec msmpeg4v1_decoder;
406 extern AVCodec msmpeg4v2_decoder;
407 extern AVCodec msmpeg4v3_decoder;
408 extern AVCodec wmv1_decoder;
409 extern AVCodec wmv2_decoder;
410 extern AVCodec mpeg_decoder;
411 extern AVCodec h263i_decoder;
412 extern AVCodec rv10_decoder;
413 extern AVCodec svq1_decoder;
414 extern AVCodec mjpeg_decoder;
415 extern AVCodec mp2_decoder;
416 extern AVCodec mp3_decoder;
419 #define PCM_CODEC(id, name) \
420 extern AVCodec name ## _decoder; \
421 extern AVCodec name ## _encoder;
423 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
424 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
425 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
426 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
427 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
428 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
429 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
430 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
434 PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
435 PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
436 PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
440 /* dummy raw video codec */
441 extern AVCodec rawvideo_codec;
443 /* the following codecs use external GPL libs */
444 extern AVCodec ac3_decoder;
448 struct ReSampleContext;
450 typedef struct ReSampleContext ReSampleContext;
452 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
453 int output_rate, int input_rate);
454 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
455 void audio_resample_close(ReSampleContext *s);
457 /* YUV420 format is assumed ! */
459 struct ImgReSampleContext;
461 typedef struct ImgReSampleContext ImgReSampleContext;
463 ImgReSampleContext *img_resample_init(int output_width, int output_height,
464 int input_width, int input_height);
465 void img_resample(ImgReSampleContext *s,
466 AVPicture *output, AVPicture *input);
468 void img_resample_close(ImgReSampleContext *s);
470 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
471 int pix_fmt, int width, int height);
472 int avpicture_get_size(int pix_fmt, int width, int height);
474 /* convert among pixel formats */
475 int img_convert(AVPicture *dst, int dst_pix_fmt,
476 AVPicture *src, int pix_fmt,
477 int width, int height);
479 /* deinterlace a picture */
480 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
481 int pix_fmt, int width, int height);
483 /* external high level API */
485 extern AVCodec *first_avcodec;
487 /* returns LIBAVCODEC_VERSION_INT constant */
488 unsigned avcodec_version(void);
489 /* returns LIBAVCODEC_BUILD constant */
490 unsigned avcodec_build(void);
491 void avcodec_init(void);
493 void avcodec_set_bit_exact(void);
495 void register_avcodec(AVCodec *format);
496 AVCodec *avcodec_find_encoder(enum CodecID id);
497 AVCodec *avcodec_find_encoder_by_name(const char *name);
498 AVCodec *avcodec_find_decoder(enum CodecID id);
499 AVCodec *avcodec_find_decoder_by_name(const char *name);
500 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
502 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
503 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
505 UINT8 *buf, int buf_size);
506 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
507 int *got_picture_ptr,
508 UINT8 *buf, int buf_size);
509 int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
511 UINT8 *buf, int buf_size);
512 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
513 const short *samples);
514 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
515 const AVPicture *pict);
517 int avcodec_close(AVCodecContext *avctx);
519 void avcodec_register_all(void);
521 void avcodec_flush_buffers(AVCodecContext *avctx);
523 #ifdef FF_POSTPROCESS
524 extern int quant_store[MBR+1][MBC+1]; // [Review]
529 * Interface for 0.5.0 version
531 * do not even think about it's usage for this moment
535 // compressed size used from given memory buffer
543 * order can't be changed - once it was defined
547 AVC_OPEN_BY_NAME = 0xACA000,
548 AVC_OPEN_BY_CODEC_ID,
553 // pin - struct { uint8_t* src, uint_t src_size }
554 // pout - struct { AVPicture* img, consumed_bytes,
556 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
557 // pout - uint_t used_from_dest_size
560 // query/get video commands
561 AVC_GET_VERSION = 0xACB000,
568 // query/get audio commands
569 AVC_GET_FRAME_SIZE = 0xABC000,
571 // maybe define some simple structure which
572 // might be passed to the user - but they can't
573 // contain any codec specific parts and these
574 // calls are usualy necessary only few times
576 // set video commands
577 AVC_SET_WIDTH = 0xACD000,
580 // set video encoding commands
581 AVC_SET_FRAME_RATE = 0xACD800,
585 // set audio commands
586 AVC_SET_SAMPLE_RATE = 0xACE000,
592 * \param handle allocated private structure by libavcodec
593 * for initialization pass NULL - will be returned pout
594 * user is supposed to know nothing about its structure
595 * \param cmd type of operation to be performed
596 * \param pint input parameter
597 * \param pout output parameter
599 * \returns command status - eventually for query command it might return
600 * integer resulting value
602 int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
605 void *av_malloc(int size);
606 void *av_mallocz(int size);
607 void av_free(void *ptr);
608 void __av_freep(void **ptr);
609 #define av_freep(p) __av_freep((void **)(p))
611 #endif /* AVCODEC_H */