6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4611
9 #define LIBAVCODEC_BUILD_STR "4611"
29 /* various pcm "codecs" */
39 #define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
42 CODEC_TYPE_UNKNOWN = -1,
57 /* currently unused, may be used if 24/32 bits samples ever supported */
59 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
63 #define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
65 /* motion estimation type, EPZS by default */
75 /* only for ME compatiblity with old apps */
76 extern int motion_estimation_method;
78 /* ME algos sorted by quality */
79 static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
80 ME_X1, ME_EPZS, ME_FULL };
82 #define FF_MAX_B_FRAMES 4
84 /* encoding support */
85 /* note not everything is supported yet */
87 #define CODEC_FLAG_HQ 0x0001 /* high quality (non real time) encoding */
88 #define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
89 #define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
90 #define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
91 #define CODEC_FLAG_GMC 0x0020 /* use GMC */
92 #define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
93 #define CODEC_FLAG_PART 0x0080 /* use data partitioning */
94 /* parent program gurantees that the input for b-frame containing streams is not written to
95 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
96 #define CODEC_FLAG_INPUT_PRESERVED 0x0100
97 #define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
98 #define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
99 #define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
101 /* codec capabilities */
103 /* decoder can use draw_horiz_band callback */
104 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
106 #define FRAME_RATE_BASE 10000
108 typedef struct AVCodecContext {
110 int bit_rate_tolerance; /* amount of +- bits (>0)*/
112 int sub_id; /* some codecs needs additionnal format info. It is
115 int me_method; /* ME algorithm used for video coding */
117 /* extra data from parent application to codec, e.g. huffman table
119 /* the parent should allocate and free this buffer */
124 int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
126 int aspect_ratio_info;
127 #define FF_ASPECT_SQUARE 1
128 #define FF_ASPECT_4_3_625 2
129 #define FF_ASPECT_4_3_525 3
130 #define FF_ASPECT_16_9_625 4
131 #define FF_ASPECT_16_9_525 5
132 int gop_size; /* 0 = intra only */
133 enum PixelFormat pix_fmt; /* pixel format, see PIX_FMT_xxx */
134 int repeat_pict; /* when decoding, this signal how much the picture */
135 /* must be delayed. */
136 /* extra_delay = (repeat_pict / 2) * (1/fps) */
137 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
138 decoder to draw an horizontal band. It improve cache usage. Not
139 all codecs can do that. You must check the codec capabilities
141 void (*draw_horiz_band)(struct AVCodecContext *s,
142 UINT8 **src_ptr, int linesize,
143 int y, int width, int height);
146 int sample_rate; /* samples per sec */
148 int sample_fmt; /* sample format, currenly unused */
150 /* the following data should not be initialized */
151 int frame_size; /* in samples, initialized when calling 'init' */
152 int frame_number; /* audio or video frame number */
153 int real_pict_num; /* returns the real picture number of
154 previous encoded frame */
155 int key_frame; /* true if the previous compressed frame was
156 a key frame (intra, or seekable) */
157 int pict_type; /* picture type of the previous
159 /* FIXME: these should have FF_ */
160 #define I_TYPE 1 // Intra
161 #define P_TYPE 2 // Predicted
162 #define B_TYPE 3 // Bi-dir predicted
163 #define S_TYPE 4 // S(GMC)-VOP MPEG4
165 int delay; /* number of frames the decoded output
166 will be delayed relative to the encoded input */
167 uint8_t *mbskip_table; /* =1 if MB didnt change, is only valid for I/P frames
168 stride= mb_width = (width+15)>>4 */
170 /* encoding parameters */
171 int quality; /* quality of the previous encoded frame
172 (between 1 (good) and 31 (bad))
173 this is allso used to set the quality in vbr mode
174 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
175 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
176 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
177 int qmin; /* min qscale */
178 int qmax; /* max qscale */
179 int max_qdiff; /* max qscale difference between frames */
180 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
181 float b_quant_factor;/* qscale factor between ips and b frames */
183 int b_frame_strategy;
185 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
186 when set to 2 idct/dequant will be skipped too */
188 struct AVCodec *codec;
191 /* The following data is for RTP friendly coding */
192 /* By now only H.263/H.263+/MPEG4 coder honours this */
193 int rtp_mode; /* 1 for activate RTP friendly-mode */
194 /* highers numbers represent more error-prone */
195 /* enviroments, by now just "1" exist */
197 int rtp_payload_size; /* The size of the RTP payload, the coder will */
198 /* do it's best to deliver a chunk with size */
199 /* below rtp_payload_size, the chunk will start */
200 /* with a start code on some codecs like H.263 */
201 /* This doesn't take account of any particular */
202 /* headers inside the transmited RTP payload */
205 /* The RTP callcack: This function is called */
206 /* every time the encoder as a packet to send */
207 /* Depends on the encoder if the data starts */
208 /* with a Start Code (it should) H.263 does */
209 void (*rtp_callback)(void *data, int size, int packet_number);
211 /* These are for PSNR calculation, if you set get_psnr to 1 */
212 /* after encoding you will have the PSNR on psnr_y/cb/cr */
218 /* statistics, used for 2-pass encoding */
226 int misc_bits; // cbp, mb_type
229 /* the following fields are ignored */
230 void *opaque; /* can be used to carry app specific stuff */
232 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
233 enum CodecID codec_id; /* see CODEC_ID_xxx */
234 unsigned int codec_tag; /* codec tag, only used if unknown codec */
236 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
237 int luma_elim_threshold;
238 int chroma_elim_threshold;
239 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
240 float b_quant_offset;/* qscale offset between ips and b frames, not implemented yet */
241 int error_resilience;
243 //FIXME this should be reordered after kabis API is finished ...
245 Note: Below are located reserved fields for further usage
246 It requires for ABI !!!
247 If you'll perform some changes then borrow new space from these fields
248 (void * can be safety replaced with struct * ;)
250 IMPORTANT: Never change order of already declared fields!!!
252 unsigned long long int
253 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
254 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
256 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
257 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11;
259 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
260 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
262 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
263 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
265 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,
268 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
269 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
271 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
272 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
275 typedef struct AVCodec {
280 int (*init)(AVCodecContext *);
281 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
282 int (*close)(AVCodecContext *);
283 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
284 UINT8 *buf, int buf_size);
286 struct AVCodec *next;
288 Note: Below are located reserved fields for further usage
289 It requires for ABI !!!
290 If you'll perform some changes then borrow new space from these fields
291 (void * can be safety replaced with struct * ;)
293 IMPORTANT: Never change order of already declared fields!!!
295 unsigned long long int
296 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
297 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
299 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
300 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
302 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
303 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
306 /* three components are given, that's all */
307 typedef struct AVPicture {
312 extern AVCodec ac3_encoder;
313 extern AVCodec mp2_encoder;
314 extern AVCodec mp3lame_encoder;
315 extern AVCodec mpeg1video_encoder;
316 extern AVCodec h263_encoder;
317 extern AVCodec h263p_encoder;
318 extern AVCodec rv10_encoder;
319 extern AVCodec mjpeg_encoder;
320 extern AVCodec mpeg4_encoder;
321 extern AVCodec msmpeg4v1_encoder;
322 extern AVCodec msmpeg4v2_encoder;
323 extern AVCodec msmpeg4v3_encoder;
325 extern AVCodec h263_decoder;
326 extern AVCodec mpeg4_decoder;
327 extern AVCodec msmpeg4v1_decoder;
328 extern AVCodec msmpeg4v2_decoder;
329 extern AVCodec msmpeg4v3_decoder;
330 extern AVCodec wmv1_decoder;
331 extern AVCodec mpeg_decoder;
332 extern AVCodec h263i_decoder;
333 extern AVCodec rv10_decoder;
334 extern AVCodec mjpeg_decoder;
335 extern AVCodec mp2_decoder;
336 extern AVCodec mp3_decoder;
339 #define PCM_CODEC(id, name) \
340 extern AVCodec name ## _decoder; \
341 extern AVCodec name ## _encoder;
343 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
344 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
345 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
346 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
347 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
348 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
349 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
350 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
354 /* dummy raw video codec */
355 extern AVCodec rawvideo_codec;
357 /* the following codecs use external GPL libs */
358 extern AVCodec ac3_decoder;
362 struct ReSampleContext;
364 typedef struct ReSampleContext ReSampleContext;
366 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
367 int output_rate, int input_rate);
368 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
369 void audio_resample_close(ReSampleContext *s);
371 /* YUV420 format is assumed ! */
373 struct ImgReSampleContext;
375 typedef struct ImgReSampleContext ImgReSampleContext;
377 ImgReSampleContext *img_resample_init(int output_width, int output_height,
378 int input_width, int input_height);
379 void img_resample(ImgReSampleContext *s,
380 AVPicture *output, AVPicture *input);
382 void img_resample_close(ImgReSampleContext *s);
384 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
385 int pix_fmt, int width, int height);
386 int avpicture_get_size(int pix_fmt, int width, int height);
388 /* convert among pixel formats */
389 int img_convert(AVPicture *dst, int dst_pix_fmt,
390 AVPicture *src, int pix_fmt,
391 int width, int height);
393 /* deinterlace a picture */
394 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
395 int pix_fmt, int width, int height);
397 /* external high level API */
399 extern AVCodec *first_avcodec;
401 /* returns LIBAVCODEC_VERSION_INT constant */
402 unsigned avcodec_version(void);
403 /* returns LIBAVCODEC_BUILD constant */
404 unsigned avcodec_build(void);
405 void avcodec_init(void);
407 void avcodec_set_bit_exact(void);
409 void register_avcodec(AVCodec *format);
410 AVCodec *avcodec_find_encoder(enum CodecID id);
411 AVCodec *avcodec_find_encoder_by_name(const char *name);
412 AVCodec *avcodec_find_decoder(enum CodecID id);
413 AVCodec *avcodec_find_decoder_by_name(const char *name);
414 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
416 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
417 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
419 UINT8 *buf, int buf_size);
420 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
421 int *got_picture_ptr,
422 UINT8 *buf, int buf_size);
423 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
424 const short *samples);
425 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
426 const AVPicture *pict);
428 int avcodec_close(AVCodecContext *avctx);
430 void avcodec_register_all(void);
432 void avcodec_flush_buffers(AVCodecContext *avctx);
434 #ifdef FF_POSTPROCESS
439 extern int quant_store[MBR+1][MBC+1]; // [Review]
444 * Interface for 0.5.0 version
446 * do not even think about it's usage for this moment
450 // compressed size used from given memory buffer
458 * order can't be changed - once it was defined
462 AVC_OPEN_BY_NAME = 0xACA000,
463 AVC_OPEN_BY_CODEC_ID,
468 // pin - struct { uint8_t* src, uint_t src_size }
469 // pout - struct { AVPicture* img, consumed_bytes,
471 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
472 // pout - uint_t used_from_dest_size
475 // query/get video commands
476 AVC_GET_VERSION = 0xACB000,
483 // query/get audio commands
484 AVC_GET_FRAME_SIZE = 0xABC000,
486 // maybe define some simple structure which
487 // might be passed to the user - but they can't
488 // contain any codec specific parts and these
489 // calls are usualy necessary only few times
491 // set video commands
492 AVC_SET_WIDTH = 0xACD000,
495 // set video encoding commands
496 AVC_SET_FRAME_RATE = 0xACD800,
500 // set audio commands
501 AVC_SET_SAMPLE_RATE = 0xACE000,
507 * \param handle allocated private structure by libavcodec
508 * for initialization pass NULL - will be returned pout
509 * user is supposed to know nothing about its structure
510 * \param cmd type of operation to be performed
511 * \param pint input parameter
512 * \param pout output parameter
514 * \returns command status - eventually for query command it might return
515 * integer resulting value
517 int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
519 #endif /* AVCODEC_H */