6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4607
9 #define LIBAVCODEC_BUILD_STR "4607"
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; /* set this to 1 if you want the decoder
134 to repeat frames for 3:2 pulldown (MPEG-2) */
135 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
136 decoder to draw an horizontal band. It improve cache usage. Not
137 all codecs can do that. You must check the codec capabilities
139 void (*draw_horiz_band)(struct AVCodecContext *s,
140 UINT8 **src_ptr, int linesize,
141 int y, int width, int height);
144 int sample_rate; /* samples per sec */
146 int sample_fmt; /* sample format, currenly unused */
148 /* the following data should not be initialized */
149 int frame_size; /* in samples, initialized when calling 'init' */
150 int frame_number; /* audio or video frame number */
151 int real_pict_num; /* returns the real picture number of
152 previous encoded frame */
153 int key_frame; /* true if the previous compressed frame was
154 a key frame (intra, or seekable) */
155 int pict_type; /* picture type of the previous
157 /* FIXME: these should have FF_ */
158 #define I_TYPE 1 // Intra
159 #define P_TYPE 2 // Predicted
160 #define B_TYPE 3 // Bi-dir predicted
161 #define S_TYPE 4 // S(GMC)-VOP MPEG4
163 int delay; /* number of frames the decoded output
164 will be delayed relative to the encoded input */
165 uint8_t *mbskip_table; /* =1 if MB didnt change, is only valid for I/P frames
166 stride= mb_width = (width+15)>>4 */
168 /* encoding parameters */
169 int quality; /* quality of the previous encoded frame
170 (between 1 (good) and 31 (bad))
171 this is allso used to set the quality in vbr mode
172 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
173 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
174 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
175 int qmin; /* min qscale */
176 int qmax; /* max qscale */
177 int max_qdiff; /* max qscale difference between frames */
178 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
179 float b_quant_factor;/* qscale factor between ips and b frames */
181 int b_frame_strategy;
183 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
184 when set to 2 idct/dequant will be skipped too */
186 struct AVCodec *codec;
189 /* The following data is for RTP friendly coding */
190 /* By now only H.263/H.263+ coder honours this */
191 int rtp_mode; /* 1 for activate RTP friendly-mode */
192 /* highers numbers represent more error-prone */
193 /* enviroments, by now just "1" exist */
195 int rtp_payload_size; /* The size of the RTP payload, the coder will */
196 /* do it's best to deliver a chunk with size */
197 /* below rtp_payload_size, the chunk will start */
198 /* with a start code on some codecs like H.263 */
199 /* This doesn't take account of any particular */
200 /* headers inside the transmited RTP payload */
203 /* The RTP callcack: This function is called */
204 /* every time the encoder as a packet to send */
205 /* Depends on the encoder if the data starts */
206 /* with a Start Code (it should) H.263 does */
207 void (*rtp_callback)(void *data, int size, int packet_number);
209 /* These are for PSNR calculation, if you set get_psnr to 1 */
210 /* after encoding you will have the PSNR on psnr_y/cb/cr */
216 /* statistics, used for 2-pass encoding */
224 int misc_bits; // cbp, mb_type
227 /* the following fields are ignored */
228 void *opaque; /* can be used to carry app specific stuff */
230 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
231 enum CodecID codec_id; /* see CODEC_ID_xxx */
232 unsigned int codec_tag; /* codec tag, only used if unknown codec */
234 Note: Below are located reserved fields for further usage
235 It requires for ABI !!!
236 If you'll perform some changes then borrow new space from these fields
237 (void * can be safety replaced with struct * ;)
239 IMPORTANT: Never change order of already declared fields!!!
241 unsigned long long int
242 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
243 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
245 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
246 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
248 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
249 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
251 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
252 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
254 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,
255 ui_res6,ui_res7,ui_res8,ui_res9,ui_res10,ui_res11,ui_res12;
257 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
258 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
260 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
261 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
264 typedef struct AVCodec {
269 int (*init)(AVCodecContext *);
270 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
271 int (*close)(AVCodecContext *);
272 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
273 UINT8 *buf, int buf_size);
275 struct AVCodec *next;
277 Note: Below are located reserved fields for further usage
278 It requires for ABI !!!
279 If you'll perform some changes then borrow new space from these fields
280 (void * can be safety replaced with struct * ;)
282 IMPORTANT: Never change order of already declared fields!!!
284 unsigned long long int
285 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
286 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
288 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
289 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
291 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
292 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
295 /* three components are given, that's all */
296 typedef struct AVPicture {
301 extern AVCodec ac3_encoder;
302 extern AVCodec mp2_encoder;
303 extern AVCodec mp3lame_encoder;
304 extern AVCodec mpeg1video_encoder;
305 extern AVCodec h263_encoder;
306 extern AVCodec h263p_encoder;
307 extern AVCodec rv10_encoder;
308 extern AVCodec mjpeg_encoder;
309 extern AVCodec mpeg4_encoder;
310 extern AVCodec msmpeg4v1_encoder;
311 extern AVCodec msmpeg4v2_encoder;
312 extern AVCodec msmpeg4v3_encoder;
314 extern AVCodec h263_decoder;
315 extern AVCodec mpeg4_decoder;
316 extern AVCodec msmpeg4v1_decoder;
317 extern AVCodec msmpeg4v2_decoder;
318 extern AVCodec msmpeg4v3_decoder;
319 extern AVCodec wmv1_decoder;
320 extern AVCodec mpeg_decoder;
321 extern AVCodec h263i_decoder;
322 extern AVCodec rv10_decoder;
323 extern AVCodec mjpeg_decoder;
324 extern AVCodec mp2_decoder;
325 extern AVCodec mp3_decoder;
328 #define PCM_CODEC(id, name) \
329 extern AVCodec name ## _decoder; \
330 extern AVCodec name ## _encoder;
332 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
333 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
334 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
335 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
336 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
337 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
338 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
339 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
343 /* dummy raw video codec */
344 extern AVCodec rawvideo_codec;
346 /* the following codecs use external GPL libs */
347 extern AVCodec ac3_decoder;
351 struct ReSampleContext;
353 typedef struct ReSampleContext ReSampleContext;
355 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
356 int output_rate, int input_rate);
357 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
358 void audio_resample_close(ReSampleContext *s);
360 /* YUV420 format is assumed ! */
362 struct ImgReSampleContext;
364 typedef struct ImgReSampleContext ImgReSampleContext;
366 ImgReSampleContext *img_resample_init(int output_width, int output_height,
367 int input_width, int input_height);
368 void img_resample(ImgReSampleContext *s,
369 AVPicture *output, AVPicture *input);
371 void img_resample_close(ImgReSampleContext *s);
373 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
374 int pix_fmt, int width, int height);
375 int avpicture_get_size(int pix_fmt, int width, int height);
377 /* convert among pixel formats */
378 int img_convert(AVPicture *dst, int dst_pix_fmt,
379 AVPicture *src, int pix_fmt,
380 int width, int height);
382 /* deinterlace a picture */
383 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
384 int pix_fmt, int width, int height);
386 /* external high level API */
388 extern AVCodec *first_avcodec;
390 /* returns LIBAVCODEC_VERSION_INT constant */
391 unsigned avcodec_version( void );
392 void avcodec_init(void);
394 void register_avcodec(AVCodec *format);
395 AVCodec *avcodec_find_encoder(enum CodecID id);
396 AVCodec *avcodec_find_encoder_by_name(const char *name);
397 AVCodec *avcodec_find_decoder(enum CodecID id);
398 AVCodec *avcodec_find_decoder_by_name(const char *name);
399 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
401 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
402 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
404 UINT8 *buf, int buf_size);
405 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
406 int *got_picture_ptr,
407 UINT8 *buf, int buf_size);
408 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
409 const short *samples);
410 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
411 const AVPicture *pict);
413 int avcodec_close(AVCodecContext *avctx);
415 void avcodec_register_all(void);
417 void avcodec_flush_buffers(AVCodecContext *avctx);
419 #ifdef FF_POSTPROCESS
424 extern int quant_store[MBR+1][MBC+1]; // [Review]
427 #endif /* AVCODEC_H */