6 #define LIBAVCODEC_VERSION_INT 0x000406
7 #define LIBAVCODEC_VERSION "0.4.6"
8 #define LIBAVCODEC_BUILD 4630
9 #define LIBAVCODEC_BUILD_STR "4630"
34 /* various pcm "codecs" */
44 /* various adpcm codecs */
45 CODEC_ID_ADPCM_IMA_QT,
46 CODEC_ID_ADPCM_IMA_WAV,
49 #define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
52 CODEC_TYPE_UNKNOWN = -1,
71 /* currently unused, may be used if 24/32 bits samples ever supported */
73 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
77 #define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
79 /* motion estimation type, EPZS by default */
89 typedef struct RcOverride{
92 int qscale; // if this is 0 then quality_factor will be used instead
96 /* only for ME compatiblity with old apps */
97 extern int motion_estimation_method;
99 /* ME algos sorted by quality */
100 static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
101 ME_X1, ME_EPZS, ME_FULL };
104 #define FF_MAX_B_FRAMES 4
107 these flags can be passed in AVCodecContext.flags before initing
108 Note: note not everything is supported yet
111 #define CODEC_FLAG_HQ 0x0001 /* brute force MB-type decission mode (slow) */
112 #define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
113 #define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
114 #define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
115 #define CODEC_FLAG_GMC 0x0020 /* use GMC */
116 #define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
117 #define CODEC_FLAG_PART 0x0080 /* use data partitioning */
118 /* parent program gurantees that the input for b-frame containing streams is not written to
119 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
120 #define CODEC_FLAG_INPUT_PRESERVED 0x0100
121 #define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
122 #define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
123 #define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
124 #define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
125 #define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
126 #define CODEC_FLAG_DR1 0x8000 /* direct renderig type 1 (store internal frames in external buffers) */
127 #define CODEC_FLAG_NOT_TRUNCATED 0x00010000 /* input bitstream is not truncated, except before a startcode
128 allows the last part of a frame to be decoded earlier */
129 #define CODEC_FLAG_NORMALIZE_AQP 0x00020000 /* normalize adaptive quantization */
130 #define CODEC_FLAG_INTERLACED_DCT 0x00040000 /* use interlaced dct */
132 /* codec capabilities */
134 #define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
135 #define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
136 /* if 'parse_only' field is true, then avcodec_parse_frame() can be
138 #define CODEC_CAP_PARSE_ONLY 0x0004
140 #define FRAME_RATE_BASE 10000
142 typedef struct AVCodecContext {
144 * the average bitrate
145 * encoding: set by user. unused for constant quantizer encoding
146 * decoding: set by lavc. 0 or some bitrate if this info is available in the stream
151 * number of bits the bitstream is allowed to diverge from the reference
152 * the reference can be CBR (for CBR pass1) or VBR (for pass2)
153 * encoding: set by user. unused for constant quantizer encoding
156 int bit_rate_tolerance;
160 * encoding: set by user.
161 * decoding: set by user.
166 * some codecs needs additionnal format info. It is stored here
167 * encoding: set by user.
168 * decoding: set by lavc. (FIXME is this ok?)
173 * motion estimation algorithm used for video coding
174 * encoding: set by user.
180 * some codecs need / can use extra-data like huffman tables
181 * mjpeg: huffman tables
182 * rv10: additional flags
183 * encoding: set/allocated/freed by lavc.
184 * decoding: set/allocated/freed by user.
191 * frames per sec multiplied by FRAME_RATE_BASE
192 * for variable fps this is the precission, so if the timestamps
193 * can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
194 * encoding: set by user
195 * decoding: set by lavc. 0 or the frame_rate if available
200 * encoding: set by user.
201 * decoding: set by user, some codecs might override / change it during playback
206 * encoding: set by user. 0 if not known
207 * decoding: set by lavc. 0 if not known
209 int aspect_ratio_info;
210 #define FF_ASPECT_SQUARE 1
211 #define FF_ASPECT_4_3_625 2
212 #define FF_ASPECT_4_3_525 3
213 #define FF_ASPECT_16_9_625 4
214 #define FF_ASPECT_16_9_525 5
215 #define FF_ASPECT_EXTENDED 15
218 * the number of pictures in a group of pitures, or 0 for intra_only
219 * encoding: set by user.
225 * pixel format, see PIX_FMT_xxx
227 * decoding: set by lavc.
229 enum PixelFormat pix_fmt;
231 int repeat_pict; /* when decoding, this signal how much the picture */
232 /* must be delayed. */
233 /* extra_delay = (repeat_pict / 2) * (1/fps) */
236 * if non NULL, 'draw_horiz_band' is called by the libavcodec
237 * decoder to draw an horizontal band. It improve cache usage. Not
238 * all codecs can do that. You must check the codec capabilities
241 * decoding: set by user.
243 void (*draw_horiz_band)(struct AVCodecContext *s,
244 UINT8 **src_ptr, int linesize,
245 int y, int width, int height);
248 int sample_rate; /* samples per sec */
250 int sample_fmt; /* sample format, currenly unused */
252 /* the following data should not be initialized */
253 int frame_size; /* in samples, initialized when calling 'init' */
254 int frame_number; /* audio or video frame number */
255 int real_pict_num; /* returns the real picture number of
256 previous encoded frame */
259 * 1 -> keyframe, 0-> not
260 * encoding: set by lavc (for the outputed bitstream, not the input frame)
261 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
266 * picture type of the previous en/decoded frame, see ?_TYPE below
267 * encoding: set by lavc (for the outputed bitstream, not the input frame)
268 * decoding: set by lavc (for the decoded bitstream, not the displayed frame)
271 /* FIXME: these should have FF_ */
272 #define I_TYPE 1 // Intra
273 #define P_TYPE 2 // Predicted
274 #define B_TYPE 3 // Bi-dir predicted
275 #define S_TYPE 4 // S(GMC)-VOP MPEG4
278 * number of frames the decoded output will be delayed relative to
280 * encoding: set by lavc.
286 * mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames
287 * stride= mb_width = (width+15)>>4 (FIXME export stride?)
289 * decoding: set by lavc
291 uint8_t *mbskip_table;
293 /* encoding parameters */
295 * quality (between 1 (good) and 31 (bad))
296 * encoding: set by user if CODEC_FLAG_QSCALE is set otherwise set by lavc
297 * decoding: set by lavc
299 int quality; /* quality of the previous encoded frame
301 this is allso used to set the quality in vbr mode
302 and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
303 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
304 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
308 * encoding: set by user.
315 * encoding: set by user.
321 * maximum quantizer difference etween frames
322 * encoding: set by user.
328 * maximum number of b frames between non b frames
329 * note: the output will be delayed by max_b_frames+1 relative to the input
330 * encoding: set by user.
336 * qscale factor between ip and b frames
337 * encoding: set by user.
340 float b_quant_factor;
342 /** obsolete FIXME remove */
344 int b_frame_strategy;
348 * decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too
352 struct AVCodec *codec;
356 /* The following data is for RTP friendly coding */
357 /* By now only H.263/H.263+/MPEG4 coder honours this */
358 int rtp_mode; /* 1 for activate RTP friendly-mode */
359 /* highers numbers represent more error-prone */
360 /* enviroments, by now just "1" exist */
362 int rtp_payload_size; /* The size of the RTP payload, the coder will */
363 /* do it's best to deliver a chunk with size */
364 /* below rtp_payload_size, the chunk will start */
365 /* with a start code on some codecs like H.263 */
366 /* This doesn't take account of any particular */
367 /* headers inside the transmited RTP payload */
370 /* The RTP callcack: This function is called */
371 /* every time the encoder as a packet to send */
372 /* Depends on the encoder if the data starts */
373 /* with a Start Code (it should) H.263 does */
374 void (*rtp_callback)(void *data, int size, int packet_number);
377 * if you set get_psnr to 1 then after encoding you will have the
378 * PSNR on psnr_y/cb/cr
379 * encoding: set by user (1-> on, 0-> off)
387 /* statistics, used for 2-pass encoding */
398 * number of bits used for the previously encoded frame
399 * encoding: set by lavc
405 * private data of the user, can be used to carry app specific stuff
406 * encoding: set by user
407 * decoding: set by user
412 enum CodecType codec_type; /* see CODEC_TYPE_xxx */
413 enum CodecID codec_id; /* see CODEC_ID_xxx */
414 unsigned int codec_tag; /* codec tag, only used if unknown codec */
417 * workaround bugs in encoders which cannot be detected automatically
419 * decoding: set by user
424 * encoding: set by user
427 int luma_elim_threshold;
430 * encoding: set by user
433 int chroma_elim_threshold;
436 * strictly follow the std (MPEG4, ...)
437 * encoding: set by user
440 int strict_std_compliance;
443 * qscale offset between ip and b frames
444 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
445 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
446 * encoding: set by user.
449 float b_quant_offset;
452 * error resilience {-1,0,1} higher values will detect more errors but may missdetect
453 * some more or less valid parts as errors
455 * decoding: set by user
457 int error_resilience;
463 #define QP_TYPE int //FIXME note xxx this might be changed to int8_t
465 QP_TYPE *quant_store; /* field for communicating with external postprocessing */
470 * buffer, where the next picture should be decoded into
472 * decoding: set by user in get_buffer_callback to a buffer into which the next part
473 * of the bitstream will be decoded, and set by lavc at end of frame to the
474 * next frame which needs to be displayed
476 uint8_t *dr_buffer[3];
479 * stride of the luminance part of the dr buffer
481 * decoding: set by user
486 * same behavior as dr_buffer, just for some private data of the user
488 * decoding: set by user in get_buffer_callback, and set by lavc at end of frame
490 void *dr_opaque_frame;
493 * called at the beginning of each frame to get a buffer for it
495 * decoding: set by user
497 void (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
500 * is 1 if the decoded stream contains b frames, 0 otherwise
502 * decoding: set by lavc
507 * stride of the chrominance part of the dr buffer
509 * decoding: set by user
514 * number of dr buffers
516 * decoding: set by user
518 int dr_ip_buffer_count;
520 int block_align; /* currently only for adpcm codec in wav/avi */
522 int parse_only; /* decoding only: if true, only parsing is done
523 (function avcodec_parse_frame()). The frame
524 data is returned. Only MPEG codecs support this now. */
527 * 0-> h263 quant 1-> mpeg quant
528 * encoding: set by user.
534 * pass1 encoding statistics output buffer
535 * encoding: set by lavc
538 char *stats_out; /* encoding statistics output buffer */
541 * pass2 encoding statistics input buffer.
542 * concatenated stuff from stats_out of pass1 should be placed here
543 * encoding: allocated/set/freed by user
549 * ratecontrol qmin qmax limiting method
550 * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
551 * encoding: set by user.
560 * ratecontrol override, see RcOverride
561 * encoding: allocated/set/freed by user.
564 RcOverride *rc_override;
565 int rc_override_count;
568 * rate control equation
569 * encoding: set by user
576 * encoding: set by user.
583 * encoding: set by user.
589 * decoder bitstream buffer size
590 * encoding: set by user.
594 float rc_buffer_aggressivity;
597 * qscale factor between p and i frames
598 * encoding: set by user.
601 float i_quant_factor;
604 * qscale offset between p and i frames
605 * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
606 * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
607 * encoding: set by user.
610 float i_quant_offset;
613 * initial complexity for pass1 ratecontrol
614 * encoding: set by user.
617 float rc_initial_cplx;
620 * custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
621 * encoding: set by user.
622 * decoding: set by lavc.
628 * dct algorithm, see FF_DCT_* below
629 * encoding: set by user
633 #define FF_DCT_AUTO 0
634 #define FF_DCT_FASTINT 1
637 #define FF_DCT_MLIB 4
640 * presentation timestamp in micro seconds (time when frame should be shown to user)
641 * if 0 then the frame_rate will be used as reference
642 * encoding: set by user
643 * decoding; set by lavc
648 * luminance masking (0-> disabled)
649 * encoding: set by user
655 * temporary complexity masking (0-> disabled)
656 * encoding: set by user
659 float temporal_cplx_masking;
662 * spatial complexity masking (0-> disabled)
663 * encoding: set by user
666 float spatial_cplx_masking;
669 * p block masking (0-> disabled)
670 * encoding: set by user
676 * darkness masking (0-> disabled)
677 * encoding: set by user
683 * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
684 * this is used to workaround some encoder bugs
686 * decoding: set by user, will be converted to upper case by lavc during init
691 * idct algorithm, see FF_IDCT_* below
692 * encoding: set by user
693 * decoding: set by user
696 #define FF_IDCT_AUTO 0
697 #define FF_IDCT_INT 1
698 #define FF_IDCT_SIMPLE 2
699 #define FF_IDCT_SIMPLEMMX 3
700 #define FF_IDCT_LIBMPEG2MMX 4
701 #define FF_IDCT_PS2 5
702 #define FF_IDCT_MLIB 6
703 #define FF_IDCT_ARM 7
707 * encoding: set by lavc
708 * decoding: set by user (or 0)
712 * slice offsets in the frame in bytes
713 * encoding: set/allocated by lavc
714 * decoding: set/allocated by user (or NULL)
718 //FIXME this should be reordered after kabis API is finished ...
721 Note: Below are located reserved fields for further usage
722 It requires for ABI !!!
723 If you'll perform some changes then borrow new space from these fields
724 (void * can be safety replaced with struct * ;)
726 Note: use avcodec_alloc_context instead of malloc to allocate this,
727 otherwise the ABI compatibility will be broken between versions
728 IMPORTANT: Never change order of already declared fields!!!
730 //TODO: remove mess below
731 unsigned long long int
732 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
733 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11;
735 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
736 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
738 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
739 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
741 ul_res0,ul_res1,ul_res2,ul_res3,ul_res4,ul_res5,
742 ul_res6,ul_res7,ul_res8,ul_res9,ul_res10,ul_res11,ul_res12;
744 us_res0,us_res1,us_res2,us_res3,us_res4,us_res5,
745 us_res6,us_res7,us_res8,us_res9,us_res10,us_res11,us_res12;
747 uc_res0,uc_res1,uc_res2,uc_res3,uc_res4,uc_res5,
748 uc_res6,uc_res7,uc_res8,uc_res9,uc_res10,uc_res11,uc_res12;
750 ui_res0,ui_res1,ui_res2,ui_res3,ui_res4,ui_res5,ui_res6,ui_res7,ui_res8,ui_res9,
751 ui_res10,ui_res11,ui_res12,ui_res13,ui_res14,ui_res15,ui_res16;
754 typedef struct AVCodec {
759 int (*init)(AVCodecContext *);
760 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
761 int (*close)(AVCodecContext *);
762 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
763 UINT8 *buf, int buf_size);
765 struct AVCodec *next;
767 Note: Below are located reserved fields for further usage
768 It requires for ABI !!!
769 If you'll perform some changes then borrow new space from these fields
770 (void * can be safety replaced with struct * ;)
772 IMPORTANT: Never change order of already declared fields!!!
774 unsigned long long int
775 ull_res0,ull_res1,ull_res2,ull_res3,ull_res4,ull_res5,
776 ull_res6,ull_res7,ull_res8,ull_res9,ull_res10,ull_res11,ull_res12;
778 flt_res0,flt_res1,flt_res2,flt_res3,flt_res4,flt_res5,
779 flt_res6,flt_res7,flt_res8,flt_res9,flt_res10,flt_res11,flt_res12;
781 *ptr_res0,*ptr_res1,*ptr_res2,*ptr_res3,*ptr_res4,*ptr_res5,
782 *ptr_res6,*ptr_res7,*ptr_res8,*ptr_res9,*ptr_res10,*ptr_res11,*ptr_res12;
785 /* three components are given, that's all */
786 typedef struct AVPicture {
791 extern AVCodec ac3_encoder;
792 extern AVCodec mp2_encoder;
793 extern AVCodec mp3lame_encoder;
794 extern AVCodec oggvorbis_encoder;
795 extern AVCodec mpeg1video_encoder;
796 extern AVCodec h263_encoder;
797 extern AVCodec h263p_encoder;
798 extern AVCodec rv10_encoder;
799 extern AVCodec mjpeg_encoder;
800 extern AVCodec mpeg4_encoder;
801 extern AVCodec msmpeg4v1_encoder;
802 extern AVCodec msmpeg4v2_encoder;
803 extern AVCodec msmpeg4v3_encoder;
804 extern AVCodec wmv1_encoder;
805 extern AVCodec wmv2_encoder;
807 extern AVCodec h263_decoder;
808 extern AVCodec mpeg4_decoder;
809 extern AVCodec msmpeg4v1_decoder;
810 extern AVCodec msmpeg4v2_decoder;
811 extern AVCodec msmpeg4v3_decoder;
812 extern AVCodec wmv1_decoder;
813 extern AVCodec wmv2_decoder;
814 extern AVCodec mpeg_decoder;
815 extern AVCodec h263i_decoder;
816 extern AVCodec rv10_decoder;
817 extern AVCodec svq1_decoder;
818 extern AVCodec dvvideo_decoder;
819 extern AVCodec dvaudio_decoder;
820 extern AVCodec mjpeg_decoder;
821 extern AVCodec mp2_decoder;
822 extern AVCodec mp3_decoder;
825 #define PCM_CODEC(id, name) \
826 extern AVCodec name ## _decoder; \
827 extern AVCodec name ## _encoder;
829 PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
830 PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
831 PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
832 PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
833 PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
834 PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
835 PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
836 PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
840 PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
841 PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
842 PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
846 /* dummy raw video codec */
847 extern AVCodec rawvideo_codec;
849 /* the following codecs use external GPL libs */
850 extern AVCodec ac3_decoder;
854 struct ReSampleContext;
856 typedef struct ReSampleContext ReSampleContext;
858 ReSampleContext *audio_resample_init(int output_channels, int input_channels,
859 int output_rate, int input_rate);
860 int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
861 void audio_resample_close(ReSampleContext *s);
863 /* YUV420 format is assumed ! */
865 struct ImgReSampleContext;
867 typedef struct ImgReSampleContext ImgReSampleContext;
869 ImgReSampleContext *img_resample_init(int output_width, int output_height,
870 int input_width, int input_height);
872 ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
873 int iwidth, int iheight,
874 int topBand, int bottomBand,
875 int leftBand, int rightBand);
877 void img_resample(ImgReSampleContext *s,
878 AVPicture *output, AVPicture *input);
880 void img_resample_close(ImgReSampleContext *s);
882 void avpicture_fill(AVPicture *picture, UINT8 *ptr,
883 int pix_fmt, int width, int height);
884 int avpicture_get_size(int pix_fmt, int width, int height);
886 /* convert among pixel formats */
887 int img_convert(AVPicture *dst, int dst_pix_fmt,
888 AVPicture *src, int pix_fmt,
889 int width, int height);
891 /* deinterlace a picture */
892 int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
893 int pix_fmt, int width, int height);
895 /* external high level API */
897 extern AVCodec *first_avcodec;
899 /* returns LIBAVCODEC_VERSION_INT constant */
900 unsigned avcodec_version(void);
901 /* returns LIBAVCODEC_BUILD constant */
902 unsigned avcodec_build(void);
903 void avcodec_init(void);
905 void avcodec_set_bit_exact(void);
907 void register_avcodec(AVCodec *format);
908 AVCodec *avcodec_find_encoder(enum CodecID id);
909 AVCodec *avcodec_find_encoder_by_name(const char *name);
910 AVCodec *avcodec_find_decoder(enum CodecID id);
911 AVCodec *avcodec_find_decoder_by_name(const char *name);
912 void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
914 AVCodecContext *avcodec_alloc_context(void);
915 int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
916 int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
918 UINT8 *buf, int buf_size);
919 int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
920 int *got_picture_ptr,
921 UINT8 *buf, int buf_size);
922 int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
924 UINT8 *buf, int buf_size);
925 int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
926 const short *samples);
927 int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
928 const AVPicture *pict);
930 int avcodec_close(AVCodecContext *avctx);
932 void avcodec_register_all(void);
934 void avcodec_flush_buffers(AVCodecContext *avctx);
936 #ifdef FF_POSTPROCESS
937 extern int quant_store[MBR+1][MBC+1]; // [Review]
942 * Interface for 0.5.0 version
944 * do not even think about it's usage for this moment
948 // compressed size used from given memory buffer
956 * order can't be changed - once it was defined
960 AVC_OPEN_BY_NAME = 0xACA000,
961 AVC_OPEN_BY_CODEC_ID,
966 // pin - struct { uint8_t* src, uint_t src_size }
967 // pout - struct { AVPicture* img, consumed_bytes,
969 // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
970 // pout - uint_t used_from_dest_size
973 // query/get video commands
974 AVC_GET_VERSION = 0xACB000,
981 // query/get audio commands
982 AVC_GET_FRAME_SIZE = 0xABC000,
984 // maybe define some simple structure which
985 // might be passed to the user - but they can't
986 // contain any codec specific parts and these
987 // calls are usualy necessary only few times
989 // set video commands
990 AVC_SET_WIDTH = 0xACD000,
993 // set video encoding commands
994 AVC_SET_FRAME_RATE = 0xACD800,
998 // set audio commands
999 AVC_SET_SAMPLE_RATE = 0xACE000,
1005 * \param handle allocated private structure by libavcodec
1006 * for initialization pass NULL - will be returned pout
1007 * user is supposed to know nothing about its structure
1008 * \param cmd type of operation to be performed
1009 * \param pint input parameter
1010 * \param pout output parameter
1012 * \returns command status - eventually for query command it might return
1013 * integer resulting value
1015 int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1018 void *av_malloc(int size);
1019 void *av_mallocz(int size);
1020 void av_free(void *ptr);
1021 void __av_freep(void **ptr);
1022 #define av_freep(p) __av_freep((void **)(p))
1024 #endif /* AVCODEC_H */