6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4609
9 #define LIBAVCODEC_BUILD_STR "4609"
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 /* parent program gurantees that the input for b-frame containing streams is not written to
94 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
95 #define CODEC_FLAG_INPUT_PRESERVED 0x0100
96 #define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
97 #define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
98 #define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
100 /* codec capabilities */
102 /* decoder can use draw_horiz_band callback */
103 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
105 #define FRAME_RATE_BASE 10000
107 typedef struct AVCodecContext {
109 int bit_rate_tolerance; /* amount of +- bits (>0)*/
111 int sub_id; /* some codecs needs additionnal format info. It is
114 int me_method; /* ME algorithm used for video coding */
116 /* extra data from parent application to codec, e.g. huffman table
118 /* the parent should allocate and free this buffer */
123 int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
125 int aspect_ratio_info;
126 #define FF_ASPECT_SQUARE 1
127 #define FF_ASPECT_4_3_625 2
128 #define FF_ASPECT_4_3_525 3
129 #define FF_ASPECT_16_9_625 4
130 #define FF_ASPECT_16_9_525 5
131 int gop_size; /* 0 = intra only */
132 enum PixelFormat pix_fmt; /* pixel format, see PIX_FMT_xxx */
133 int repeat_pict; /* when decoding, this signal how much the picture */
134 /* must be delayed. */
135 /* extra_delay = (repeat_pict / 2) * (1/fps) */
136 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
137 decoder to draw an horizontal band. It improve cache usage. Not
138 all codecs can do that. You must check the codec capabilities
140 void (*draw_horiz_band)(struct AVCodecContext *s,
141 UINT8 **src_ptr, int linesize,
142 int y, int width, int height);
145 int sample_rate; /* samples per sec */
147 int sample_fmt; /* sample format, currenly unused */
149 /* the following data should not be initialized */
150 int frame_size; /* in samples, initialized when calling 'init' */
151 int frame_number; /* audio or video frame number */
152 int real_pict_num; /* returns the real picture number of
153 previous encoded frame */
154 int key_frame; /* true if the previous compressed frame was
155 a key frame (intra, or seekable) */
156 int pict_type; /* picture type of the previous
158 /* FIXME: these should have FF_ */
159 #define I_TYPE 1 // Intra
160 #define P_TYPE 2 // Predicted
161 #define B_TYPE 3 // Bi-dir predicted
162 #define S_TYPE 4 // S(GMC)-VOP MPEG4
164 int delay; /* number of frames the decoded output
165 will be delayed relative to the encoded input */
166 uint8_t *mbskip_table; /* =1 if MB didnt change, is only valid for I/P frames
167 stride= mb_width = (width+15)>>4 */
169 /* encoding parameters */
170 int quality; /* quality of the previous encoded frame
171 (between 1 (good) and 31 (bad))
172 this is allso used to set the quality in vbr mode
173 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
174 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
175 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
176 int qmin; /* min qscale */
177 int qmax; /* max qscale */
178 int max_qdiff; /* max qscale difference between frames */
179 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
180 float b_quant_factor;/* qscale factor between ips and b frames */
182 int b_frame_strategy;
184 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
185 when set to 2 idct/dequant will be skipped too */
187 struct AVCodec *codec;
190 /* The following data is for RTP friendly coding */
191 /* By now only H.263/H.263+ coder honours this */
192 int rtp_mode; /* 1 for activate RTP friendly-mode */
193 /* highers numbers represent more error-prone */
194 /* enviroments, by now just "1" exist */
196 int rtp_payload_size; /* The size of the RTP payload, the coder will */
197 /* do it's best to deliver a chunk with size */
198 /* below rtp_payload_size, the chunk will start */
199 /* with a start code on some codecs like H.263 */
200 /* This doesn't take account of any particular */
201 /* headers inside the transmited RTP payload */
204 /* The RTP callcack: This function is called */
205 /* every time the encoder as a packet to send */
206 /* Depends on the encoder if the data starts */
207 /* with a Start Code (it should) H.263 does */
208 void (*rtp_callback)(void *data, int size, int packet_number);
210 /* These are for PSNR calculation, if you set get_psnr to 1 */
211 /* after encoding you will have the PSNR on psnr_y/cb/cr */
217 /* statistics, used for 2-pass encoding */
225 int misc_bits; // cbp, mb_type
228 /* the following fields are ignored */
229 void *opaque; /* can be used to carry app specific stuff */
231 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
232 enum CodecID codec_id; /* see CODEC_ID_xxx */
233 unsigned int codec_tag; /* codec tag, only used if unknown codec */
235 Note: Below are located reserved fields for further usage
236 It requires for ABI !!!
237 If you'll perform some changes then borrow new space from these fields
238 (void * can be safety replaced with struct * ;)
240 IMPORTANT: Never change order of already declared fields!!!
242 unsigned long long int
243 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
244 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
246 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
247 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
249 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
250 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
252 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
253 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
255 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,
256 ui_res6,ui_res7,ui_res8,ui_res9,ui_res10,ui_res11,ui_res12;
258 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
259 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
261 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
262 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
265 typedef struct AVCodec {
270 int (*init)(AVCodecContext *);
271 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
272 int (*close)(AVCodecContext *);
273 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
274 UINT8 *buf, int buf_size);
276 struct AVCodec *next;
278 Note: Below are located reserved fields for further usage
279 It requires for ABI !!!
280 If you'll perform some changes then borrow new space from these fields
281 (void * can be safety replaced with struct * ;)
283 IMPORTANT: Never change order of already declared fields!!!
285 unsigned long long int
286 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
287 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
289 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
290 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
292 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
293 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
296 /* three components are given, that's all */
297 typedef struct AVPicture {
302 extern AVCodec ac3_encoder;
303 extern AVCodec mp2_encoder;
304 extern AVCodec mp3lame_encoder;
305 extern AVCodec mpeg1video_encoder;
306 extern AVCodec h263_encoder;
307 extern AVCodec h263p_encoder;
308 extern AVCodec rv10_encoder;
309 extern AVCodec mjpeg_encoder;
310 extern AVCodec mpeg4_encoder;
311 extern AVCodec msmpeg4v1_encoder;
312 extern AVCodec msmpeg4v2_encoder;
313 extern AVCodec msmpeg4v3_encoder;
315 extern AVCodec h263_decoder;
316 extern AVCodec mpeg4_decoder;
317 extern AVCodec msmpeg4v1_decoder;
318 extern AVCodec msmpeg4v2_decoder;
319 extern AVCodec msmpeg4v3_decoder;
320 extern AVCodec wmv1_decoder;
321 extern AVCodec mpeg_decoder;
322 extern AVCodec h263i_decoder;
323 extern AVCodec rv10_decoder;
324 extern AVCodec mjpeg_decoder;
325 extern AVCodec mp2_decoder;
326 extern AVCodec mp3_decoder;
329 #define PCM_CODEC(id, name) \
330 extern AVCodec name ## _decoder; \
331 extern AVCodec name ## _encoder;
333 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
334 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
335 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
336 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
337 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
338 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
339 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
340 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
344 /* dummy raw video codec */
345 extern AVCodec rawvideo_codec;
347 /* the following codecs use external GPL libs */
348 extern AVCodec ac3_decoder;
352 struct ReSampleContext;
354 typedef struct ReSampleContext ReSampleContext;
356 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
357 int output_rate, int input_rate);
358 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
359 void audio_resample_close(ReSampleContext *s);
361 /* YUV420 format is assumed ! */
363 struct ImgReSampleContext;
365 typedef struct ImgReSampleContext ImgReSampleContext;
367 ImgReSampleContext *img_resample_init(int output_width, int output_height,
368 int input_width, int input_height);
369 void img_resample(ImgReSampleContext *s,
370 AVPicture *output, AVPicture *input);
372 void img_resample_close(ImgReSampleContext *s);
374 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
375 int pix_fmt, int width, int height);
376 int avpicture_get_size(int pix_fmt, int width, int height);
378 /* convert among pixel formats */
379 int img_convert(AVPicture *dst, int dst_pix_fmt,
380 AVPicture *src, int pix_fmt,
381 int width, int height);
383 /* deinterlace a picture */
384 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
385 int pix_fmt, int width, int height);
387 /* external high level API */
389 extern AVCodec *first_avcodec;
391 /* returns LIBAVCODEC_VERSION_INT constant */
392 unsigned avcodec_version(void);
393 /* returns LIBAVCODEC_BUILD constant */
394 unsigned avcodec_build(void);
395 void avcodec_init(void);
397 void avcodec_set_bit_exact(void);
399 void register_avcodec(AVCodec *format);
400 AVCodec *avcodec_find_encoder(enum CodecID id);
401 AVCodec *avcodec_find_encoder_by_name(const char *name);
402 AVCodec *avcodec_find_decoder(enum CodecID id);
403 AVCodec *avcodec_find_decoder_by_name(const char *name);
404 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
406 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
407 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
409 UINT8 *buf, int buf_size);
410 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
411 int *got_picture_ptr,
412 UINT8 *buf, int buf_size);
413 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
414 const short *samples);
415 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
416 const AVPicture *pict);
418 int avcodec_close(AVCodecContext *avctx);
420 void avcodec_register_all(void);
422 void avcodec_flush_buffers(AVCodecContext *avctx);
424 #ifdef FF_POSTPROCESS
429 extern int quant_store[MBR+1][MBC+1]; // [Review]
434 * Interface for 0.5.0 version
436 * do not even think about it's usage for this moment
440 // compressed size used from given memory buffer
448 * order can't be changed - once it was defined
452 AVC_OPEN_BY_NAME = 0xACA000,
453 AVC_OPEN_BY_CODEC_ID,
458 // pin - struct { uint8_t* src, uint_t src_size }
459 // pout - struct { AVPicture* img, consumed_bytes,
461 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
462 // pout - uint_t used_from_dest_size
465 // query/get video commands
466 AVC_GET_VERSION = 0xACB000,
473 // query/get audio commands
474 AVC_GET_FRAME_SIZE = 0xABC000,
476 // maybe define some simple structure which
477 // might be passed to the user - but they can't
478 // contain any codec specific parts and these
479 // calls are usualy necessary only few times
481 // set video commands
482 AVC_SET_WIDTH = 0xACD000,
485 // set video encoding commands
486 AVC_SET_FRAME_RATE = 0xACD800,
490 // set audio commands
491 AVC_SET_SAMPLE_RATE = 0xACE000,
497 * \param handle allocated private structure by libavcodec
498 * for initialization pass NULL - will be returned pout
499 * user is supposed to know nothing about its structure
500 * \param cmd type of operation to be performed
501 * \param pint input parameter
502 * \param pout output parameter
504 * \returns command status - eventually for query command it might return
505 * integer resulting value
507 int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
509 #endif /* AVCODEC_H */