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gavl.h
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1 /*****************************************************************
2 * gavl - a general purpose audio/video processing library
3 *
4 * Copyright (c) 2001 - 2011 Members of the Gmerlin project
5 * gmerlin-general@lists.sourceforge.net
6 * http://gmerlin.sourceforge.net
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * *****************************************************************/
21
27 #ifndef GAVL_H_INCLUDED
28 #define GAVL_H_INCLUDED
29
30 #include <inttypes.h>
31
32 #include <gavl/gavldefs.h>
33 #include <gavl/gavltime.h>
34
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39 #include <gavl/timecode.h>
40
41
64 typedef void (*gavl_video_process_func)(void * data, int start, int end);
65
79 typedef void (*gavl_video_run_func)(gavl_video_process_func func,
80 void * gavl_data,
81 int start, int end,
82 void * client_data, int thread);
83
92 typedef void (*gavl_video_stop_func)(void * client_data, int thread);
93
102 typedef struct gavl_video_format_s gavl_video_format_t;
103
104
105 /* Quality levels */
106
130 #define GAVL_QUALITY_FASTEST 1
131
138 #define GAVL_QUALITY_BEST 5
139
146 #define GAVL_QUALITY_DEFAULT 2
147
159 #define GAVL_ACCEL_MMX (1<<0)
160 #define GAVL_ACCEL_MMXEXT (1<<1)
161 #define GAVL_ACCEL_SSE (1<<2)
162 #define GAVL_ACCEL_SSE2 (1<<3)
163 #define GAVL_ACCEL_SSE3 (1<<4)
164 #define GAVL_ACCEL_3DNOW (1<<5)
165 #define GAVL_ACCEL_3DNOWEXT (1<<6)
166 #define GAVL_ACCEL_SSSE3 (1<<7)
167
168
172 GAVL_PUBLIC int gavl_accel_supported();
173
182 /* Sample formats: all multibyte numbers are native endian */
183
196 #define GAVL_MAX_CHANNELS 128
197
204 typedef enum
205 {
206 GAVL_SAMPLE_NONE = 0,
207 GAVL_SAMPLE_U8 = 1,
208 GAVL_SAMPLE_S8 = 2,
209 GAVL_SAMPLE_U16 = 3,
210 GAVL_SAMPLE_S16 = 4,
211 GAVL_SAMPLE_S32 = 5,
212 GAVL_SAMPLE_FLOAT = 6,
213 GAVL_SAMPLE_DOUBLE = 7
214 } gavl_sample_format_t;
215
221 typedef enum
222 {
223 GAVL_INTERLEAVE_NONE = 0,
224 GAVL_INTERLEAVE_2 = 1,
225 GAVL_INTERLEAVE_ALL = 2
226 } gavl_interleave_mode_t;
227
235 typedef enum
236 {
237 GAVL_CHID_NONE = 0,
238 GAVL_CHID_FRONT_CENTER,
239 GAVL_CHID_FRONT_LEFT,
240 GAVL_CHID_FRONT_RIGHT,
241 GAVL_CHID_FRONT_CENTER_LEFT,
242 GAVL_CHID_FRONT_CENTER_RIGHT,
243 GAVL_CHID_REAR_LEFT,
244 GAVL_CHID_REAR_RIGHT,
245 GAVL_CHID_REAR_CENTER,
246 GAVL_CHID_SIDE_LEFT,
247 GAVL_CHID_SIDE_RIGHT,
248 GAVL_CHID_LFE,
249 GAVL_CHID_AUX,
250 } gavl_channel_id_t;
251
260 typedef struct
261 {
262 int samples_per_frame;
263 int samplerate;
264 int num_channels;
265 gavl_sample_format_t sample_format;
266 gavl_interleave_mode_t interleave_mode;
268 float center_level;
269 float rear_level;
271 gavl_channel_id_t channel_locations[GAVL_MAX_CHANNELS];
273 } gavl_audio_format_t;
274
275
276 /* Audio format -> string conversions */
277
285 GAVL_PUBLIC
286 const char * gavl_sample_format_to_string(gavl_sample_format_t format);
287
296 GAVL_PUBLIC
297 gavl_sample_format_t gavl_string_to_sample_format(const char * str);
298
304 GAVL_PUBLIC
305 int gavl_num_sample_formats();
306
313 GAVL_PUBLIC
314 gavl_sample_format_t gavl_get_sample_format(int index);
315
322 GAVL_PUBLIC
323 const char * gavl_channel_id_to_string(gavl_channel_id_t id);
324
325
332 GAVL_PUBLIC
333 const char * gavl_interleave_mode_to_string(gavl_interleave_mode_t mode);
334
341 GAVL_PUBLIC
342 void gavl_audio_format_dump(const gavl_audio_format_t * format);
343
352 GAVL_PUBLIC
353 int gavl_channel_index(const gavl_audio_format_t * format, gavl_channel_id_t id);
354
361 GAVL_PUBLIC
362 int gavl_front_channels(const gavl_audio_format_t * format);
363
370 GAVL_PUBLIC
371 int gavl_rear_channels(const gavl_audio_format_t * format);
372
379 GAVL_PUBLIC
380 int gavl_side_channels(const gavl_audio_format_t * format);
381
388 GAVL_PUBLIC
389 int gavl_aux_channels(const gavl_audio_format_t * format);
390
391
392
399 GAVL_PUBLIC
400 int gavl_lfe_channels(const gavl_audio_format_t * format);
401
409 GAVL_PUBLIC
410 void gavl_audio_format_copy(gavl_audio_format_t * dst,
411 const gavl_audio_format_t * src);
412
421 GAVL_PUBLIC
422 int gavl_audio_formats_equal(const gavl_audio_format_t * format_1,
423 const gavl_audio_format_t * format_2);
424
436 GAVL_PUBLIC
437 void gavl_set_channel_setup(gavl_audio_format_t * format);
438
445 GAVL_PUBLIC
446 int gavl_bytes_per_sample(gavl_sample_format_t format);
447
462 typedef union
463 {
464 uint8_t * u_8;
465 int8_t * s_8;
467 uint16_t * u_16;
468 int16_t * s_16;
470 uint32_t * u_32;
471 int32_t * s_32;
473 float * f;
474 double * d;
475 } gavl_audio_samples_t;
476
482 typedef union
483 {
484 uint8_t * u_8[GAVL_MAX_CHANNELS];
485 int8_t * s_8[GAVL_MAX_CHANNELS];
487 uint16_t * u_16[GAVL_MAX_CHANNELS];
488 int16_t * s_16[GAVL_MAX_CHANNELS];
490 uint32_t * u_32[GAVL_MAX_CHANNELS];
491 int32_t * s_32[GAVL_MAX_CHANNELS];
493 float * f[GAVL_MAX_CHANNELS];
494 double * d[GAVL_MAX_CHANNELS];
496 } gavl_audio_channels_t;
497
514 typedef struct
515 {
516 gavl_audio_samples_t samples;
517 gavl_audio_channels_t channels;
518 int valid_samples;
519 int64_t timestamp;
520 int channel_stride;
521 } gavl_audio_frame_t;
522
534 GAVL_PUBLIC
535 gavl_audio_frame_t * gavl_audio_frame_create(const gavl_audio_format_t* format);
536
548 GAVL_PUBLIC
549 void gavl_audio_frame_null(gavl_audio_frame_t * frame);
550
560 GAVL_PUBLIC
561 void gavl_audio_frame_destroy(gavl_audio_frame_t * frame);
562
572 GAVL_PUBLIC
573 void gavl_audio_frame_mute(gavl_audio_frame_t * frame,
574 const gavl_audio_format_t * format);
575
586 GAVL_PUBLIC
587 void gavl_audio_frame_mute_samples(gavl_audio_frame_t * frame,
588 const gavl_audio_format_t * format,
589 int num_samples);
590
591
592
603 GAVL_PUBLIC
604 void gavl_audio_frame_mute_channel(gavl_audio_frame_t * frame,
605 const gavl_audio_format_t * format,
606 int channel);
607
628 GAVL_PUBLIC
629 int gavl_audio_frame_copy(const gavl_audio_format_t * format,
630 gavl_audio_frame_t * dst,
631 const gavl_audio_frame_t * src,
632 int dst_pos,
633 int src_pos,
634 int dst_size,
635 int src_size);
636
649 GAVL_PUBLIC
650 void gavl_audio_frame_copy_ptrs(const gavl_audio_format_t * format,
651 gavl_audio_frame_t * dst,
652 const gavl_audio_frame_t * src);
653
671 GAVL_PUBLIC
672 void gavl_audio_frame_get_subframe(const gavl_audio_format_t * format,
673 gavl_audio_frame_t * src,
674 gavl_audio_frame_t * dst,
675 int start, int len);
676
689 GAVL_PUBLIC
690 int gavl_audio_frames_equal(const gavl_audio_format_t * format,
691 const gavl_audio_frame_t * f1,
692 const gavl_audio_frame_t * f2);
693
713 GAVL_PUBLIC
714 int gavl_audio_frame_plot(const gavl_audio_format_t * format,
715 const gavl_audio_frame_t * frame,
716 const char * name_base);
717
718
733 #define GAVL_AUDIO_FRONT_TO_REAR_COPY (1<<0)
738 #define GAVL_AUDIO_FRONT_TO_REAR_MUTE (1<<1)
743 #define GAVL_AUDIO_FRONT_TO_REAR_DIFF (1<<2)
748 #define GAVL_AUDIO_FRONT_TO_REAR_MASK \
749 (GAVL_AUDIO_FRONT_TO_REAR_COPY | \
750 GAVL_AUDIO_FRONT_TO_REAR_MUTE | \
751 GAVL_AUDIO_FRONT_TO_REAR_DIFF)
753 /* Options for mixing stereo to mono */
754
757 #define GAVL_AUDIO_STEREO_TO_MONO_LEFT (1<<3)
760 #define GAVL_AUDIO_STEREO_TO_MONO_RIGHT (1<<4)
763 #define GAVL_AUDIO_STEREO_TO_MONO_MIX (1<<5)
767 #define GAVL_AUDIO_STEREO_TO_MONO_MASK \
768 (GAVL_AUDIO_STEREO_TO_MONO_LEFT | \
769 GAVL_AUDIO_STEREO_TO_MONO_RIGHT | \
770 GAVL_AUDIO_STEREO_TO_MONO_MIX)
775 #define GAVL_AUDIO_NORMALIZE_MIX_MATRIX (1<<6)
782 typedef enum
783 {
784 GAVL_AUDIO_DITHER_NONE = 0,
785 GAVL_AUDIO_DITHER_AUTO = 1,
786 GAVL_AUDIO_DITHER_RECT = 2,
787 GAVL_AUDIO_DITHER_TRI = 3,
788 GAVL_AUDIO_DITHER_SHAPED = 4,
789 } gavl_audio_dither_mode_t;
790
795 typedef enum
796 {
797 GAVL_RESAMPLE_AUTO = 0,
798 GAVL_RESAMPLE_ZOH = 1,
799 GAVL_RESAMPLE_LINEAR = 2,
800 GAVL_RESAMPLE_SINC_FAST = 3,
801 GAVL_RESAMPLE_SINC_MEDIUM = 4,
802 GAVL_RESAMPLE_SINC_BEST = 5
803 } gavl_resample_mode_t;
804
811 typedef struct gavl_audio_options_s gavl_audio_options_t;
812
819 GAVL_PUBLIC
820 void gavl_audio_options_set_quality(gavl_audio_options_t * opt, int quality);
821
828 GAVL_PUBLIC
829 int gavl_audio_options_get_quality(gavl_audio_options_t * opt);
830
837 GAVL_PUBLIC
838 void gavl_audio_options_set_dither_mode(gavl_audio_options_t * opt, gavl_audio_dither_mode_t mode);
839
846 GAVL_PUBLIC
847 gavl_audio_dither_mode_t gavl_audio_options_get_dither_mode(gavl_audio_options_t * opt);
848
849
856 GAVL_PUBLIC
857 void gavl_audio_options_set_resample_mode(gavl_audio_options_t * opt, gavl_resample_mode_t mode);
858
865 GAVL_PUBLIC
866 gavl_resample_mode_t gavl_audio_options_get_resample_mode(gavl_audio_options_t * opt);
867
874 GAVL_PUBLIC
875 void gavl_audio_options_set_conversion_flags(gavl_audio_options_t * opt,
876 int flags);
877
884 GAVL_PUBLIC
885 int gavl_audio_options_get_conversion_flags(gavl_audio_options_t * opt);
886
892 GAVL_PUBLIC
893 void gavl_audio_options_set_defaults(gavl_audio_options_t * opt);
894
911 GAVL_PUBLIC
912 void gavl_audio_options_set_mix_matrix(gavl_audio_options_t * opt,
913 const double ** matrix);
914
923 GAVL_PUBLIC
924 const double ** gavl_audio_options_get_mix_matrix(gavl_audio_options_t * opt);
925
935 GAVL_PUBLIC
936 gavl_audio_options_t * gavl_audio_options_create();
937
944 GAVL_PUBLIC
945 void gavl_audio_options_copy(gavl_audio_options_t * dst,
946 const gavl_audio_options_t * src);
947
953 GAVL_PUBLIC
954 void gavl_audio_options_destroy(gavl_audio_options_t * opt);
955
956
957
958 /* Audio converter */
959
993 typedef struct gavl_audio_converter_s gavl_audio_converter_t;
994
1000 GAVL_PUBLIC
1001 gavl_audio_converter_t * gavl_audio_converter_create();
1002
1008 GAVL_PUBLIC
1009 void gavl_audio_converter_destroy(gavl_audio_converter_t* cnv);
1010
1019 GAVL_PUBLIC
1020 gavl_audio_options_t * gavl_audio_converter_get_options(gavl_audio_converter_t*cnv);
1021
1022
1037 GAVL_PUBLIC
1038 int gavl_audio_converter_init(gavl_audio_converter_t* cnv,
1039 const gavl_audio_format_t * input_format,
1040 const gavl_audio_format_t * output_format);
1041
1056 GAVL_PUBLIC
1057 int gavl_audio_converter_init_resample(gavl_audio_converter_t * cnv,
1058 const gavl_audio_format_t * format);
1059
1074 GAVL_PUBLIC
1075 int gavl_audio_converter_reinit(gavl_audio_converter_t* cnv);
1076
1077
1091 GAVL_PUBLIC
1092 void gavl_audio_convert(gavl_audio_converter_t * cnv,
1093 const gavl_audio_frame_t * input_frame,
1094 gavl_audio_frame_t * output_frame);
1095
1096
1115 GAVL_PUBLIC
1116 int gavl_audio_converter_set_resample_ratio(gavl_audio_converter_t * cnv,
1117 double ratio ) ;
1118
1119
1135 GAVL_PUBLIC
1136 void gavl_audio_converter_resample(gavl_audio_converter_t * cnv,
1137 gavl_audio_frame_t * input_frame,
1138 gavl_audio_frame_t * output_frame,
1139 double ratio);
1140
1141
1155 typedef struct gavl_volume_control_s gavl_volume_control_t;
1156
1157 /* Create / destroy */
1158
1164 GAVL_PUBLIC
1165 gavl_volume_control_t * gavl_volume_control_create();
1166
1172 GAVL_PUBLIC
1173 void gavl_volume_control_destroy(gavl_volume_control_t *ctrl);
1174
1182 GAVL_PUBLIC
1183 void gavl_volume_control_set_format(gavl_volume_control_t *ctrl,
1184 const gavl_audio_format_t * format);
1185
1192 GAVL_PUBLIC
1193 void gavl_volume_control_set_volume(gavl_volume_control_t * ctrl,
1194 float volume);
1195
1202 GAVL_PUBLIC
1203 void gavl_volume_control_apply(gavl_volume_control_t *ctrl,
1204 gavl_audio_frame_t * frame);
1205
1221 typedef struct gavl_peak_detector_s gavl_peak_detector_t;
1222
1223 /* Create / destroy */
1224
1230 GAVL_PUBLIC
1231 gavl_peak_detector_t * gavl_peak_detector_create();
1232
1238 GAVL_PUBLIC
1239 void gavl_peak_detector_destroy(gavl_peak_detector_t *pd);
1240
1250 GAVL_PUBLIC
1251 void gavl_peak_detector_set_format(gavl_peak_detector_t *pd,
1252 const gavl_audio_format_t * format);
1253
1260 GAVL_PUBLIC
1261 void gavl_peak_detector_update(gavl_peak_detector_t *pd,
1262 gavl_audio_frame_t * frame);
1263
1276 GAVL_PUBLIC
1277 void gavl_peak_detector_get_peak(gavl_peak_detector_t * pd,
1278 double * min, double * max,
1279 double * abs);
1280
1293 GAVL_PUBLIC
1294 void gavl_peak_detector_get_peaks(gavl_peak_detector_t * pd,
1295 double * min, double * max,
1296 double * abs);
1297
1303 GAVL_PUBLIC
1304 void gavl_peak_detector_reset(gavl_peak_detector_t * pd);
1305
1315 #define GAVL_MAX_PLANES 4
1327 typedef struct
1328 {
1329 int x;
1330 int y;
1331 int w;
1332 int h;
1333 } gavl_rectangle_i_t;
1334
1339 typedef struct
1340 {
1341 double x;
1342 double y;
1343 double w;
1344 double h;
1345 } gavl_rectangle_f_t;
1346
1353 GAVL_PUBLIC
1354 void gavl_rectangle_i_crop_to_format(gavl_rectangle_i_t * r,
1355 const gavl_video_format_t * format);
1356
1363 GAVL_PUBLIC
1364 void gavl_rectangle_f_crop_to_format(gavl_rectangle_f_t * r,
1365 const gavl_video_format_t * format);
1366
1381 GAVL_PUBLIC
1382 void gavl_rectangle_crop_to_format_noscale(gavl_rectangle_i_t * src_rect,
1383 gavl_rectangle_i_t * dst_rect,
1384 const gavl_video_format_t * src_format,
1385 const gavl_video_format_t * dst_format);
1386
1398 GAVL_PUBLIC
1399 void gavl_rectangle_crop_to_format_scale(gavl_rectangle_f_t * src_rect,
1400 gavl_rectangle_i_t * dst_rect,
1401 const gavl_video_format_t * src_format,
1402 const gavl_video_format_t * dst_format);
1403
1404
1405
1412 GAVL_PUBLIC
1413 void gavl_rectangle_i_set_all(gavl_rectangle_i_t * r, const gavl_video_format_t * format);
1414
1421 GAVL_PUBLIC
1422 void gavl_rectangle_f_set_all(gavl_rectangle_f_t * r, const gavl_video_format_t * format);
1423
1430 GAVL_PUBLIC
1431 void gavl_rectangle_i_crop_left(gavl_rectangle_i_t * r, int num_pixels);
1432
1439 GAVL_PUBLIC
1440 void gavl_rectangle_i_crop_right(gavl_rectangle_i_t * r, int num_pixels);
1441
1448 GAVL_PUBLIC
1449 void gavl_rectangle_i_crop_top(gavl_rectangle_i_t * r, int num_pixels);
1450
1457 GAVL_PUBLIC
1458 void gavl_rectangle_i_crop_bottom(gavl_rectangle_i_t * r, int num_pixels);
1459
1466 GAVL_PUBLIC
1467 void gavl_rectangle_f_crop_left(gavl_rectangle_f_t * r, double num_pixels);
1468
1475 GAVL_PUBLIC
1476 void gavl_rectangle_f_crop_right(gavl_rectangle_f_t * r, double num_pixels);
1477
1484 GAVL_PUBLIC
1485 void gavl_rectangle_f_crop_top(gavl_rectangle_f_t * r, double num_pixels);
1486
1493 GAVL_PUBLIC
1494 void gavl_rectangle_f_crop_bottom(gavl_rectangle_f_t * r, double num_pixels);
1495
1509 GAVL_PUBLIC
1510 void gavl_rectangle_i_align(gavl_rectangle_i_t * r, int h_align, int v_align);
1511
1521 GAVL_PUBLIC
1522 void gavl_rectangle_i_align_to_format(gavl_rectangle_i_t * r,
1523 const gavl_video_format_t * format);
1524
1525
1532 GAVL_PUBLIC
1533 void gavl_rectangle_i_copy(gavl_rectangle_i_t * dst, const gavl_rectangle_i_t * src);
1534
1541 GAVL_PUBLIC
1542 void gavl_rectangle_f_copy(gavl_rectangle_f_t * dst, const gavl_rectangle_f_t * src);
1543
1544
1545
1552 GAVL_PUBLIC
1553 void gavl_rectangle_i_to_f(gavl_rectangle_f_t * dst, const gavl_rectangle_i_t * src);
1554
1561 GAVL_PUBLIC
1562 void gavl_rectangle_f_to_i(gavl_rectangle_i_t * dst, const gavl_rectangle_f_t * src);
1563
1572 GAVL_PUBLIC
1573 int gavl_rectangle_i_is_empty(const gavl_rectangle_i_t * r);
1574
1583 GAVL_PUBLIC
1584 int gavl_rectangle_f_is_empty(const gavl_rectangle_f_t * r);
1585
1613 GAVL_PUBLIC
1614 void gavl_rectangle_fit_aspect(gavl_rectangle_i_t * dst_rect,
1615 const gavl_video_format_t * src_format,
1616 const gavl_rectangle_f_t * src_rect,
1617 const gavl_video_format_t * dst_format,
1618 float zoom, float squeeze);
1619
1624 GAVL_PUBLIC
1625 void gavl_rectangle_i_dump(const gavl_rectangle_i_t * r);
1626
1631 GAVL_PUBLIC
1632 void gavl_rectangle_f_dump(const gavl_rectangle_f_t * r);
1633
1634
1644 #define GAVL_PIXFMT_PLANAR (1<<8)
1645
1649 #define GAVL_PIXFMT_RGB (1<<9)
1650
1654 #define GAVL_PIXFMT_YUV (1<<10)
1655
1659 #define GAVL_PIXFMT_YUVJ (1<<11)
1660
1664 #define GAVL_PIXFMT_ALPHA (1<<12)
1665
1669 #define GAVL_PIXFMT_GRAY (1<<13)
1670
1675 typedef enum
1676 {
1679 GAVL_PIXELFORMAT_NONE = 0,
1680
1683 GAVL_GRAY_8 = 1 | GAVL_PIXFMT_GRAY,
1684
1687 GAVL_GRAY_16 = 2 | GAVL_PIXFMT_GRAY,
1688
1691 GAVL_GRAY_FLOAT = 3 | GAVL_PIXFMT_GRAY,
1692
1695 GAVL_GRAYA_16 = 1 | GAVL_PIXFMT_GRAY | GAVL_PIXFMT_ALPHA,
1696
1699 GAVL_GRAYA_32 = 2 | GAVL_PIXFMT_GRAY | GAVL_PIXFMT_ALPHA,
1700
1703 GAVL_GRAYA_FLOAT = 3 | GAVL_PIXFMT_GRAY | GAVL_PIXFMT_ALPHA,
1704
1708 GAVL_RGB_15 = 1 | GAVL_PIXFMT_RGB,
1712 GAVL_BGR_15 = 2 | GAVL_PIXFMT_RGB,
1716 GAVL_RGB_16 = 3 | GAVL_PIXFMT_RGB,
1720 GAVL_BGR_16 = 4 | GAVL_PIXFMT_RGB,
1723 GAVL_RGB_24 = 5 | GAVL_PIXFMT_RGB,
1726 GAVL_BGR_24 = 6 | GAVL_PIXFMT_RGB,
1729 GAVL_RGB_32 = 7 | GAVL_PIXFMT_RGB,
1732 GAVL_BGR_32 = 8 | GAVL_PIXFMT_RGB,
1735 GAVL_RGBA_32 = 9 | GAVL_PIXFMT_RGB | GAVL_PIXFMT_ALPHA,
1736
1739 GAVL_RGB_48 = 10 | GAVL_PIXFMT_RGB,
1742 GAVL_RGBA_64 = 11 | GAVL_PIXFMT_RGB | GAVL_PIXFMT_ALPHA,
1743
1746 GAVL_RGB_FLOAT = 12 | GAVL_PIXFMT_RGB,
1749 GAVL_RGBA_FLOAT = 13 | GAVL_PIXFMT_RGB | GAVL_PIXFMT_ALPHA,
1750
1753 GAVL_YUY2 = 1 | GAVL_PIXFMT_YUV,
1756 GAVL_UYVY = 2 | GAVL_PIXFMT_YUV,
1759 GAVL_YUVA_32 = 3 | GAVL_PIXFMT_YUV | GAVL_PIXFMT_ALPHA,
1762 GAVL_YUVA_64 = 4 | GAVL_PIXFMT_YUV | GAVL_PIXFMT_ALPHA,
1765 GAVL_YUV_FLOAT = 5 | GAVL_PIXFMT_YUV,
1766
1769 GAVL_YUVA_FLOAT = 6 | GAVL_PIXFMT_YUV | GAVL_PIXFMT_ALPHA,
1770
1774 GAVL_YUV_420_P = 1 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1777 GAVL_YUV_422_P = 2 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1780 GAVL_YUV_444_P = 3 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1783 GAVL_YUV_411_P = 4 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1786 GAVL_YUV_410_P = 5 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1787
1790 GAVL_YUVJ_420_P = 6 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV | GAVL_PIXFMT_YUVJ,
1793 GAVL_YUVJ_422_P = 7 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV | GAVL_PIXFMT_YUVJ,
1796 GAVL_YUVJ_444_P = 8 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV | GAVL_PIXFMT_YUVJ,
1797
1800 GAVL_YUV_444_P_16 = 9 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1803 GAVL_YUV_422_P_16 = 10 | GAVL_PIXFMT_PLANAR | GAVL_PIXFMT_YUV,
1804
1805 } gavl_pixelformat_t;
1806
1809 #define GAVL_PIXELFORMAT_1D_8 GAVL_GRAY_8
1810
1812 #define GAVL_PIXELFORMAT_2D_8 GAVL_GRAYA_16
1813
1815 #define GAVL_PIXELFORMAT_3D_8 GAVL_RGB_24
1816
1818 #define GAVL_PIXELFORMAT_4D_8 GAVL_RGBA_32
1819
1822 #define GAVL_PIXELFORMAT_1D_16 GAVL_GRAY_16
1823
1825 #define GAVL_PIXELFORMAT_2D_16 GAVL_GRAYA_32
1826
1828 #define GAVL_PIXELFORMAT_3D_16 GAVL_RGB_48
1829
1831 #define GAVL_PIXELFORMAT_4D_16 GAVL_RGBA_64
1832
1835 #define GAVL_PIXELFORMAT_1D_FLOAT GAVL_GRAY_FLOAT
1836
1838 #define GAVL_PIXELFORMAT_2D_FLOAT GAVL_GRAYA_FLOAT
1839
1841 #define GAVL_PIXELFORMAT_3D_FLOAT GAVL_RGB_FLOAT
1842
1844 #define GAVL_PIXELFORMAT_4D_FLOAT GAVL_RGBA_FLOAT
1845
1852 typedef enum
1853 {
1854 GAVL_CCH_RED,
1855 GAVL_CCH_GREEN,
1856 GAVL_CCH_BLUE,
1857 GAVL_CCH_Y,
1858 GAVL_CCH_CB,
1859 GAVL_CCH_CR,
1860 GAVL_CCH_ALPHA,
1861 } gavl_color_channel_t;
1862
1863 /*
1864 * Colormodel related functions
1865 */
1866
1873 #define gavl_pixelformat_is_gray(fmt) ((fmt) & GAVL_PIXFMT_GRAY)
1874
1875
1882 #define gavl_pixelformat_is_rgb(fmt) ((fmt) & GAVL_PIXFMT_RGB)
1883
1890 #define gavl_pixelformat_is_yuv(fmt) ((fmt) & GAVL_PIXFMT_YUV)
1891
1898 #define gavl_pixelformat_is_jpeg_scaled(fmt) ((fmt) & GAVL_PIXFMT_YUVJ)
1899
1906 #define gavl_pixelformat_has_alpha(fmt) ((fmt) & GAVL_PIXFMT_ALPHA)
1907
1914 #define gavl_pixelformat_is_planar(fmt) ((fmt) & GAVL_PIXFMT_PLANAR)
1915
1922 GAVL_PUBLIC
1923 int gavl_pixelformat_num_planes(gavl_pixelformat_t pixelformat);
1924
1934 GAVL_PUBLIC
1935 void gavl_pixelformat_chroma_sub(gavl_pixelformat_t pixelformat, int * sub_h, int * sub_v);
1936
1943 GAVL_PUBLIC
1944 int gavl_pixelformat_bytes_per_component(gavl_pixelformat_t pixelformat);
1945
1952 GAVL_PUBLIC
1953 int gavl_pixelformat_bytes_per_pixel(gavl_pixelformat_t pixelformat);
1954
1961 GAVL_PUBLIC
1962 int gavl_pixelformat_bits_per_pixel(gavl_pixelformat_t pixelformat);
1963
1978 GAVL_PUBLIC
1979 int gavl_pixelformat_conversion_penalty(gavl_pixelformat_t src,
1980 gavl_pixelformat_t dst);
1981
1995 GAVL_PUBLIC gavl_pixelformat_t
1996 gavl_pixelformat_get_best(gavl_pixelformat_t src,
1997 const gavl_pixelformat_t * dst_supported,
1998 int * penalty);
1999
2000
2001
2008 GAVL_PUBLIC
2009 const char * gavl_pixelformat_to_string(gavl_pixelformat_t pixelformat);
2010
2017 GAVL_PUBLIC
2018 gavl_pixelformat_t gavl_string_to_pixelformat(const char * name);
2019
2025 GAVL_PUBLIC
2026 int gavl_num_pixelformats();
2027
2034 GAVL_PUBLIC
2035 gavl_pixelformat_t gavl_get_pixelformat(int index);
2036
2037 /* */
2038
2047 typedef enum
2048 {
2049 GAVL_CHROMA_PLACEMENT_DEFAULT = 0,
2050 GAVL_CHROMA_PLACEMENT_MPEG2,
2051 GAVL_CHROMA_PLACEMENT_DVPAL
2052 } gavl_chroma_placement_t;
2053
2060 GAVL_PUBLIC
2061 const char * gavl_chroma_placement_to_string(gavl_chroma_placement_t mode);
2062
2067 /* Changing the values alters the gmerlin-avdecoder index format */
2068
2069 typedef enum
2070 {
2071 GAVL_FRAMERATE_UNKNOWN = -1,
2072 GAVL_FRAMERATE_CONSTANT = 0,
2073 GAVL_FRAMERATE_VARIABLE = 1,
2074 GAVL_FRAMERATE_STILL = 2,
2075 } gavl_framerate_mode_t;
2076
2083 GAVL_PUBLIC
2084 const char * gavl_framerate_mode_to_string(gavl_framerate_mode_t mode);
2085
2090 /* Changing the values alters the gmerlin-avdecoder index format */
2091
2092 typedef enum
2093 {
2094 GAVL_INTERLACE_UNKNOWN = -1,
2095 GAVL_INTERLACE_NONE = 0,
2096 GAVL_INTERLACE_TOP_FIRST = 1,
2097 GAVL_INTERLACE_BOTTOM_FIRST = 2,
2098 GAVL_INTERLACE_MIXED = 3,
2099 GAVL_INTERLACE_MIXED_TOP = 4,
2100 GAVL_INTERLACE_MIXED_BOTTOM = 5,
2101 } gavl_interlace_mode_t;
2102
2109 GAVL_PUBLIC
2110 const char * gavl_interlace_mode_to_string(gavl_interlace_mode_t mode);
2111
2112
2113 /* Video format structure */
2114
2119 struct gavl_video_format_s
2120 {
2121 int frame_width;
2122 int frame_height;
2124 int image_width;
2125 int image_height;
2127 /* Support for nonsquare pixels */
2128
2129 int pixel_width;
2130 int pixel_height;
2132 gavl_pixelformat_t pixelformat;
2134 int frame_duration;
2136 int timescale;
2138 gavl_framerate_mode_t framerate_mode;
2139 gavl_chroma_placement_t chroma_placement;
2141 gavl_interlace_mode_t interlace_mode;
2143 gavl_timecode_format_t timecode_format;
2144 };
2145
2153 GAVL_PUBLIC
2154 void gavl_video_format_copy(gavl_video_format_t * dst,
2155 const gavl_video_format_t * src);
2156
2165 GAVL_PUBLIC
2166 int gavl_video_formats_equal(const gavl_video_format_t * format_1,
2167 const gavl_video_format_t * format_2);
2168
2169
2180 GAVL_PUBLIC
2181 void gavl_video_format_get_chroma_offset(const gavl_video_format_t * format, int field, int plane,
2182 float * off_x, float * off_y);
2183
2184
2185
2198 GAVL_PUBLIC
2199 void gavl_video_format_fit_to_source(gavl_video_format_t * dst,
2200 const gavl_video_format_t * src);
2201
2209 GAVL_PUBLIC
2210 int gavl_video_format_get_image_size(const gavl_video_format_t * format);
2211
2227 GAVL_PUBLIC
2228 int gavl_get_color_channel_format(const gavl_video_format_t * frame_format,
2229 gavl_video_format_t * channel_format,
2230 gavl_color_channel_t ch);
2231
2232
2246 GAVL_PUBLIC
2247 void gavl_get_field_format(const gavl_video_format_t * frame_format,
2248 gavl_video_format_t * field_format,
2249 int field);
2250
2251
2258 GAVL_PUBLIC
2259 void gavl_video_format_dump(const gavl_video_format_t * format);
2260
2261
2284 typedef struct
2285 {
2286 uint8_t * planes[GAVL_MAX_PLANES];
2287 int strides[GAVL_MAX_PLANES];
2289 void * user_data;
2290 int64_t timestamp;
2291 int64_t duration;
2292 gavl_interlace_mode_t interlace_mode;
2293 gavl_timecode_t timecode;
2294 } gavl_video_frame_t;
2295
2296
2308 GAVL_PUBLIC
2309 gavl_video_frame_t * gavl_video_frame_create(const gavl_video_format_t*format);
2310
2321 GAVL_PUBLIC
2322 gavl_video_frame_t * gavl_video_frame_create_nopad(const gavl_video_format_t*format);
2323
2324
2325
2335 GAVL_PUBLIC
2336 void gavl_video_frame_destroy(gavl_video_frame_t*frame);
2337
2349 GAVL_PUBLIC
2350 void gavl_video_frame_null(gavl_video_frame_t*frame);
2351
2360 GAVL_PUBLIC
2361 void gavl_video_frame_clear(gavl_video_frame_t * frame,
2362 const gavl_video_format_t * format);
2363
2373 GAVL_PUBLIC
2374 void gavl_video_frame_fill(gavl_video_frame_t * frame,
2375 const gavl_video_format_t * format,
2376 const float * color);
2377
2390 GAVL_PUBLIC
2391 void gavl_video_frame_absdiff(gavl_video_frame_t * dst,
2392 const gavl_video_frame_t * src1,
2393 const gavl_video_frame_t * src2,
2394 const gavl_video_format_t * format);
2395
2408 GAVL_PUBLIC
2409 void gavl_video_frame_psnr(double * psnr,
2410 const gavl_video_frame_t * src1,
2411 const gavl_video_frame_t * src2,
2412 const gavl_video_format_t * format);
2413
2440 GAVL_PUBLIC
2441 int gavl_video_frame_ssim(const gavl_video_frame_t * src1,
2442 const gavl_video_frame_t * src2,
2443 gavl_video_frame_t * dst,
2444 const gavl_video_format_t * format);
2445
2459 GAVL_PUBLIC
2460 void gavl_video_frame_copy(const gavl_video_format_t * format,
2461 gavl_video_frame_t * dst,
2462 const gavl_video_frame_t * src);
2463
2476 GAVL_PUBLIC
2477 void gavl_video_frame_copy_plane(const gavl_video_format_t * format,
2478 gavl_video_frame_t * dst,
2479 const gavl_video_frame_t * src, int plane);
2480
2492 GAVL_PUBLIC
2493 void gavl_video_frame_copy_flip_x(const gavl_video_format_t * format,
2494 gavl_video_frame_t * dst,
2495 const gavl_video_frame_t * src);
2496
2508 GAVL_PUBLIC
2509 void gavl_video_frame_copy_flip_y(const gavl_video_format_t * format,
2510 gavl_video_frame_t * dst,
2511 const gavl_video_frame_t * src);
2512
2524 GAVL_PUBLIC
2525 void gavl_video_frame_copy_flip_xy(const gavl_video_format_t * format,
2526 gavl_video_frame_t * dst,
2527 const gavl_video_frame_t * src);
2528
2541 GAVL_PUBLIC
2542 void gavl_video_frame_copy_metadata(gavl_video_frame_t * dst,
2543 const gavl_video_frame_t * src);
2544
2545
2563 GAVL_PUBLIC
2564 void gavl_video_frame_get_subframe(gavl_pixelformat_t pixelformat,
2565 const gavl_video_frame_t * src,
2566 gavl_video_frame_t * dst,
2567 gavl_rectangle_i_t * src_rect);
2568
2584 GAVL_PUBLIC
2585 void gavl_video_frame_get_field(gavl_pixelformat_t pixelformat,
2586 const gavl_video_frame_t * src,
2587 gavl_video_frame_t * dst,
2588 int field);
2589
2590
2591
2604 GAVL_PUBLIC
2605 void gavl_video_frame_dump(gavl_video_frame_t * frame,
2606 const gavl_video_format_t * format,
2607 const char * namebase);
2608
2619 GAVL_PUBLIC
2620 void gavl_video_frame_set_strides(gavl_video_frame_t * frame,
2621 const gavl_video_format_t * format);
2622
2635 GAVL_PUBLIC
2636 void gavl_video_frame_set_planes(gavl_video_frame_t * frame,
2637 const gavl_video_format_t * format,
2638 uint8_t * buffer);
2639
2654 GAVL_PUBLIC
2655 int gavl_video_frame_extract_channel(const gavl_video_format_t * format,
2656 gavl_color_channel_t ch,
2657 const gavl_video_frame_t * src,
2658 gavl_video_frame_t * dst);
2659
2675 GAVL_PUBLIC
2676 int gavl_video_frame_insert_channel(const gavl_video_format_t * format,
2677 gavl_color_channel_t ch,
2678 const gavl_video_frame_t * src,
2679 gavl_video_frame_t * dst);
2680
2681
2693 GAVL_PUBLIC
2694 int gavl_video_frames_equal(const gavl_video_format_t * format,
2695 const gavl_video_frame_t * f1,
2696 const gavl_video_frame_t * f2);
2697
2698
2699 /*****************************
2700 Conversion options
2701 ******************************/
2702
2718 #define GAVL_FORCE_DEINTERLACE (1<<0)
2719
2724 #define GAVL_CONVOLVE_CHROMA (1<<1)
2725
2730 #define GAVL_CONVOLVE_NORMALIZE (1<<2)
2731
2739 #define GAVL_RESAMPLE_CHROMA (1<<3)
2740
2748 typedef enum
2749 {
2750 GAVL_ALPHA_IGNORE = 0,
2751 GAVL_ALPHA_BLEND_COLOR
2752 } gavl_alpha_mode_t;
2753
2760 typedef enum
2761 {
2762 GAVL_DEINTERLACE_NONE = 0,
2763 GAVL_DEINTERLACE_COPY = 1,
2764 GAVL_DEINTERLACE_SCALE = 2,
2765 GAVL_DEINTERLACE_BLEND = 3
2766 } gavl_deinterlace_mode_t;
2767
2774 typedef enum
2775 {
2776 GAVL_DEINTERLACE_DROP_TOP,
2777 GAVL_DEINTERLACE_DROP_BOTTOM,
2778 } gavl_deinterlace_drop_mode_t;
2779
2784 typedef enum
2785 {
2786 GAVL_SCALE_AUTO,
2787 GAVL_SCALE_NEAREST,
2788 GAVL_SCALE_BILINEAR,
2789 GAVL_SCALE_QUADRATIC,
2790 GAVL_SCALE_CUBIC_BSPLINE,
2791 GAVL_SCALE_CUBIC_MITCHELL,
2792 GAVL_SCALE_CUBIC_CATMULL,
2793 GAVL_SCALE_SINC_LANCZOS,
2794 GAVL_SCALE_NONE,
2795 } gavl_scale_mode_t;
2796
2806 typedef enum
2807 {
2808 GAVL_DOWNSCALE_FILTER_AUTO = 0,
2809 GAVL_DOWNSCALE_FILTER_NONE,
2810 GAVL_DOWNSCALE_FILTER_WIDE,
2811 GAVL_DOWNSCALE_FILTER_GAUSS,
2812 } gavl_downscale_filter_t;
2813
2820 typedef struct gavl_video_options_s gavl_video_options_t;
2821
2822 /* Default Options */
2823
2829 GAVL_PUBLIC
2830 void gavl_video_options_set_defaults(gavl_video_options_t * opt);
2831
2841 GAVL_PUBLIC
2842 gavl_video_options_t * gavl_video_options_create();
2843
2850 GAVL_PUBLIC
2851 void gavl_video_options_copy(gavl_video_options_t * dst,
2852 const gavl_video_options_t * src);
2853
2859 GAVL_PUBLIC
2860 void gavl_video_options_destroy(gavl_video_options_t * opt);
2861
2862
2877 GAVL_PUBLIC
2878 void gavl_video_options_set_rectangles(gavl_video_options_t * opt,
2879 const gavl_rectangle_f_t * src_rect,
2880 const gavl_rectangle_i_t * dst_rect);
2881
2889 GAVL_PUBLIC
2890 void gavl_video_options_get_rectangles(gavl_video_options_t * opt,
2891 gavl_rectangle_f_t * src_rect,
2892 gavl_rectangle_i_t * dst_rect);
2893
2900 GAVL_PUBLIC
2901 void gavl_video_options_set_quality(gavl_video_options_t * opt, int quality);
2902
2909 GAVL_PUBLIC
2910 int gavl_video_options_get_quality(gavl_video_options_t * opt);
2911
2912
2919 GAVL_PUBLIC
2920 void gavl_video_options_set_conversion_flags(gavl_video_options_t * opt,
2921 int conversion_flags);
2922
2929 GAVL_PUBLIC
2930 int gavl_video_options_get_conversion_flags(gavl_video_options_t * opt);
2931
2938 GAVL_PUBLIC
2939 void gavl_video_options_set_alpha_mode(gavl_video_options_t * opt,
2940 gavl_alpha_mode_t alpha_mode);
2941
2948 GAVL_PUBLIC gavl_alpha_mode_t
2949 gavl_video_options_get_alpha_mode(gavl_video_options_t * opt);
2950
2951
2958 GAVL_PUBLIC
2959 void gavl_video_options_set_scale_mode(gavl_video_options_t * opt,
2960 gavl_scale_mode_t scale_mode);
2961
2968 GAVL_PUBLIC gavl_scale_mode_t
2969 gavl_video_options_get_scale_mode(gavl_video_options_t * opt);
2970
2971
2978 GAVL_PUBLIC
2979 void gavl_video_options_set_scale_order(gavl_video_options_t * opt,
2980 int order);
2981
2988 GAVL_PUBLIC
2989 int gavl_video_options_get_scale_order(gavl_video_options_t * opt);
2990
2991
2998 GAVL_PUBLIC
2999 void gavl_video_options_set_background_color(gavl_video_options_t * opt,
3000 const float * color);
3001
3008 GAVL_PUBLIC
3009 void gavl_video_options_get_background_color(gavl_video_options_t * opt,
3010 float * color);
3011
3018 GAVL_PUBLIC
3019 void gavl_video_options_set_deinterlace_mode(gavl_video_options_t * opt,
3020 gavl_deinterlace_mode_t deinterlace_mode);
3021
3028 GAVL_PUBLIC gavl_deinterlace_mode_t
3029 gavl_video_options_get_deinterlace_mode(gavl_video_options_t * opt);
3030
3037 GAVL_PUBLIC
3038 void gavl_video_options_set_deinterlace_drop_mode(gavl_video_options_t * opt,
3039 gavl_deinterlace_drop_mode_t deinterlace_drop_mode);
3040
3047 GAVL_PUBLIC gavl_deinterlace_drop_mode_t
3048 gavl_video_options_get_deinterlace_drop_mode(gavl_video_options_t * opt);
3049
3058 GAVL_PUBLIC
3059 void gavl_video_options_set_downscale_filter(gavl_video_options_t * opt,
3060 gavl_downscale_filter_t f);
3061
3062
3071 GAVL_PUBLIC gavl_downscale_filter_t
3072 gavl_video_options_get_downscale_filter(gavl_video_options_t * opt);
3073
3091 GAVL_PUBLIC
3092 void gavl_video_options_set_downscale_blur(gavl_video_options_t * opt,
3093 float f);
3094
3103 GAVL_PUBLIC
3104 float gavl_video_options_get_downscale_blur(gavl_video_options_t * opt);
3105
3114 GAVL_PUBLIC
3115 void gavl_video_options_set_num_threads(gavl_video_options_t * opt, int n);
3116
3117
3126 GAVL_PUBLIC
3127 int gavl_video_options_get_num_threads(gavl_video_options_t * opt);
3128
3138 GAVL_PUBLIC
3139 void gavl_video_options_set_run_func(gavl_video_options_t * opt,
3140 gavl_video_run_func func,
3141 void * client_data);
3142
3152 GAVL_PUBLIC
3153 gavl_video_run_func gavl_video_options_get_run_func(gavl_video_options_t * opt,
3154 void ** client_data);
3155
3165 GAVL_PUBLIC
3166 void gavl_video_options_set_stop_func(gavl_video_options_t * opt,
3167 gavl_video_stop_func func,
3168 void * client_data);
3169
3179 GAVL_PUBLIC
3180 gavl_video_stop_func gavl_video_options_get_stop_func(gavl_video_options_t * opt,
3181 void ** client_data);
3182
3183
3184 /***************************************************
3185 * Create and destroy video converters
3186 ***************************************************/
3187
3220 typedef struct gavl_video_converter_s gavl_video_converter_t;
3221
3227 GAVL_PUBLIC
3228 gavl_video_converter_t * gavl_video_converter_create();
3229
3235 GAVL_PUBLIC
3236 void gavl_video_converter_destroy(gavl_video_converter_t*cnv);
3237
3238 /**************************************************
3239 * Get options. Change the options with the gavl_video_options_set_*
3240 * functions above
3241 **************************************************/
3242
3251 GAVL_PUBLIC gavl_video_options_t *
3252 gavl_video_converter_get_options(gavl_video_converter_t*cnv);
3253
3254
3268 GAVL_PUBLIC
3269 int gavl_video_converter_init(gavl_video_converter_t* cnv,
3270 const gavl_video_format_t * input_format,
3271 const gavl_video_format_t * output_format);
3272
3285 GAVL_PUBLIC
3286 int gavl_video_converter_reinit(gavl_video_converter_t* cnv);
3287
3288
3289 /***************************************************
3290 * Convert a frame
3291 ***************************************************/
3292
3300 GAVL_PUBLIC
3301 void gavl_video_convert(gavl_video_converter_t * cnv,
3302 const gavl_video_frame_t * input_frame,
3303 gavl_video_frame_t * output_frame);
3304
3336 typedef struct gavl_video_scaler_s gavl_video_scaler_t;
3337
3343 GAVL_PUBLIC
3344 gavl_video_scaler_t * gavl_video_scaler_create();
3345
3351 GAVL_PUBLIC
3352 void gavl_video_scaler_destroy(gavl_video_scaler_t * scaler);
3353
3362 GAVL_PUBLIC gavl_video_options_t *
3363 gavl_video_scaler_get_options(gavl_video_scaler_t * scaler);
3364
3377 GAVL_PUBLIC
3378 int gavl_video_scaler_init(gavl_video_scaler_t * scaler,
3379 const gavl_video_format_t * src_format,
3380 const gavl_video_format_t * dst_format);
3381
3403 GAVL_PUBLIC
3404 int gavl_video_scaler_init_convolve(gavl_video_scaler_t * scaler,
3405 const gavl_video_format_t * format,
3406 int h_radius, const float * h_coeffs,
3407 int v_radius, const float * v_coeffs);
3408
3416 GAVL_PUBLIC
3417 void gavl_video_scaler_scale(gavl_video_scaler_t * scaler,
3418 const gavl_video_frame_t * input_frame,
3419 gavl_video_frame_t * output_frame);
3420
3436 typedef struct gavl_video_deinterlacer_s gavl_video_deinterlacer_t;
3437
3443 GAVL_PUBLIC
3444 gavl_video_deinterlacer_t * gavl_video_deinterlacer_create();
3445
3451 GAVL_PUBLIC
3452 void gavl_video_deinterlacer_destroy(gavl_video_deinterlacer_t * deinterlacer);
3453
3462 GAVL_PUBLIC gavl_video_options_t *
3463 gavl_video_deinterlacer_get_options(gavl_video_deinterlacer_t * deinterlacer);
3464
3475 GAVL_PUBLIC
3476 int gavl_video_deinterlacer_init(gavl_video_deinterlacer_t * deinterlacer,
3477 const gavl_video_format_t * src_format);
3478
3479
3487 GAVL_PUBLIC
3488 void gavl_video_deinterlacer_deinterlace(gavl_video_deinterlacer_t * deinterlacer,
3489 const gavl_video_frame_t * input_frame,
3490 gavl_video_frame_t * output_frame);
3491
3492
3493
3494 /**************************************************
3495 * Transparent overlays
3496 **************************************************/
3497
3498 /* Overlay struct */
3499
3527 typedef struct
3528 {
3529 gavl_video_frame_t * frame;
3530 gavl_rectangle_i_t ovl_rect;
3531 int dst_x;
3532 int dst_y;
3533 } gavl_overlay_t;
3534
3541 typedef struct gavl_overlay_blend_context_s gavl_overlay_blend_context_t;
3542
3548 GAVL_PUBLIC
3549 gavl_overlay_blend_context_t * gavl_overlay_blend_context_create();
3550
3556 GAVL_PUBLIC
3557 void gavl_overlay_blend_context_destroy(gavl_overlay_blend_context_t * ctx);
3558
3565 GAVL_PUBLIC gavl_video_options_t *
3566 gavl_overlay_blend_context_get_options(gavl_overlay_blend_context_t * ctx);
3567
3583 GAVL_PUBLIC
3584 int gavl_overlay_blend_context_init(gavl_overlay_blend_context_t * ctx,
3585 const gavl_video_format_t * frame_format,
3586 gavl_video_format_t * overlay_format);
3587
3597 GAVL_PUBLIC
3598 void gavl_overlay_blend_context_set_overlay(gavl_overlay_blend_context_t * ctx,
3599 gavl_overlay_t * ovl);
3600
3607 GAVL_PUBLIC
3608 void gavl_overlay_blend(gavl_overlay_blend_context_t * ctx,
3609 gavl_video_frame_t * dst_frame);
3610
3632 typedef struct gavl_image_transform_s gavl_image_transform_t;
3633
3647 typedef void (*gavl_image_transform_func)(void * priv,
3648 double xdst,
3649 double ydst,
3650 double * xsrc,
3651 double * ysrc);
3652
3653
3660 GAVL_PUBLIC
3661 gavl_image_transform_t * gavl_image_transform_create();
3662
3668 GAVL_PUBLIC
3669 void gavl_image_transform_destroy(gavl_image_transform_t * t);
3670
3689 GAVL_PUBLIC
3690 int gavl_image_transform_init(gavl_image_transform_t * t,
3691 gavl_video_format_t * format,
3692 gavl_image_transform_func func, void * priv);
3693
3701 GAVL_PUBLIC
3702 void gavl_image_transform_transform(gavl_image_transform_t * t,
3703 gavl_video_frame_t * in_frame,
3704 gavl_video_frame_t * out_frame);
3705
3716 GAVL_PUBLIC gavl_video_options_t *
3717 gavl_image_transform_get_options(gavl_image_transform_t * t);
3718
3741 typedef struct
3742 {
3743 int64_t offset;
3744 /* Primary */
3745 int64_t num_entries;
3746 int64_t entries_alloc;
3747
3748 struct
3749 {
3750 int64_t num_frames;
3751 int64_t duration;
3752 } * entries;
3753
3754 int num_timecodes;
3755 int timecodes_alloc;
3756
3757 struct
3758 {
3759 int64_t pts;
3760 gavl_timecode_t tc;
3761 } * timecodes;
3762
3763 /* Secondary */
3764
3765 } gavl_frame_table_t;
3766
3772 GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_create();
3773
3784 GAVL_PUBLIC gavl_frame_table_t *
3785 gavl_frame_table_create_audio(int samplerate, int64_t offset, int64_t duration,
3786 gavl_timecode_format_t * fmt_ret);
3787
3798 GAVL_PUBLIC gavl_frame_table_t *
3799 gavl_frame_table_create_cfr(int64_t offset, int64_t frame_duration,
3800 int64_t num_frames,
3801 gavl_timecode_t start_timecode);
3802
3810 GAVL_PUBLIC gavl_frame_table_t *
3811 gavl_frame_table_copy(const gavl_frame_table_t * tab);
3812
3813
3814
3821 GAVL_PUBLIC void gavl_frame_table_destroy(gavl_frame_table_t * t);
3822
3830 GAVL_PUBLIC void gavl_frame_table_append_entry(gavl_frame_table_t * t, int64_t duration);
3831
3840 GAVL_PUBLIC void
3841 gavl_frame_table_append_timecode(gavl_frame_table_t * t,
3842 int64_t pts, gavl_timecode_t tc);
3843
3854 GAVL_PUBLIC int64_t
3855 gavl_frame_table_frame_to_time(const gavl_frame_table_t * t,
3856 int64_t frame, int * duration);
3857
3868 GAVL_PUBLIC int64_t
3869 gavl_frame_table_time_to_frame(const gavl_frame_table_t * t,
3870 int64_t time,
3871 int64_t * start_time);
3872
3883 GAVL_PUBLIC gavl_timecode_t
3884 gavl_frame_table_time_to_timecode(const gavl_frame_table_t * t,
3885 int64_t time,
3886 int64_t * start_time,
3887 const gavl_timecode_format_t * fmt);
3888
3898 GAVL_PUBLIC int64_t
3899 gavl_frame_table_timecode_to_time(const gavl_frame_table_t * t,
3900 gavl_timecode_t tc,
3901 const gavl_timecode_format_t * fmt);
3902
3903
3914 GAVL_PUBLIC gavl_timecode_t
3915 gavl_frame_table_frame_to_timecode(const gavl_frame_table_t * t,
3916 int64_t frame,
3917 int64_t * start_time,
3918 const gavl_timecode_format_t * fmt);
3919
3920
3921
3929 GAVL_PUBLIC int64_t
3930 gavl_frame_table_num_frames(const gavl_frame_table_t * t);
3931
3939 GAVL_PUBLIC int64_t
3940 gavl_frame_table_duration(const gavl_frame_table_t * t);
3941
3949 GAVL_PUBLIC int64_t
3950 gavl_frame_table_end_time(const gavl_frame_table_t * t);
3951
3960 GAVL_PUBLIC
3961 int gavl_frame_table_save(const gavl_frame_table_t * t,
3962 const char * filename);
3963
3971 GAVL_PUBLIC
3972 gavl_frame_table_t * gavl_frame_table_load(const char * filename);
3973
3980 GAVL_PUBLIC void
3981 gavl_frame_table_dump(const gavl_frame_table_t * t);
3982
3983
3984
3985
3986
3987
3993 #ifdef __cplusplus
3994 }
3995 #endif
3996
3997 #endif /* GAVL_H_INCLUDED */
gavl_audio_samples_t::u_16
uint16_t * u_16
Definition: gavl.h:467
gavl_audio_formats_equal
GAVL_PUBLIC int gavl_audio_formats_equal(const gavl_audio_format_t *format_1, const gavl_audio_format_t *format_2)
Compare 2 audio formats.
gavl_volume_control_t
struct gavl_volume_control_s gavl_volume_control_t
Opaque structure for a volume control.
Definition: gavl.h:1155
GAVL_INTERLEAVE_ALL
Definition: gavl.h:225
gavl_video_frame_copy_flip_x
GAVL_PUBLIC void gavl_video_frame_copy_flip_x(const gavl_video_format_t *format, gavl_video_frame_t *dst, const gavl_video_frame_t *src)
Copy one video frame to another with horizontal flipping.
gavl_audio_frame_t
Generic container for audio samples.
Definition: gavl.h:514
gavl_video_deinterlacer_destroy
GAVL_PUBLIC void gavl_video_deinterlacer_destroy(gavl_video_deinterlacer_t *deinterlacer)
Destroy a video deinterlacer.
gavl_frame_table_t::tc
gavl_timecode_t tc
Timecode associated with this timestamp.
Definition: gavl.h:3760
gavl_timecode_format_t
Timecode format.
Definition: timecode.h:59
gavl_get_field_format
GAVL_PUBLIC void gavl_get_field_format(const gavl_video_format_t *frame_format, gavl_video_format_t *field_format, int field)
Get the video format of one field.
gavl_frame_table_save
GAVL_PUBLIC int gavl_frame_table_save(const gavl_frame_table_t *t, const char *filename)
Save a frame table to a file.
gavl_peak_detector_get_peaks
GAVL_PUBLIC void gavl_peak_detector_get_peaks(gavl_peak_detector_t *pd, double *min, double *max, double *abs)
Get the peak volume for all channels separate.
gavl_audio_options_t
struct gavl_audio_options_s gavl_audio_options_t
Opaque container for audio conversion options.
Definition: gavl.h:811
GAVL_GRAY_8
Definition: gavl.h:1683
gavl_pixelformat_bytes_per_component
GAVL_PUBLIC int gavl_pixelformat_bytes_per_component(gavl_pixelformat_t pixelformat)
Get bytes per component for planar formats.
gavl_video_frame_copy
GAVL_PUBLIC void gavl_video_frame_copy(const gavl_video_format_t *format, gavl_video_frame_t *dst, const gavl_video_frame_t *src)
Copy one video frame to another.
gavl_alpha_mode_t
gavl_alpha_mode_t
Definition: gavl.h:2748
gavl_audio_frame_null
GAVL_PUBLIC void gavl_audio_frame_null(gavl_audio_frame_t *frame)
Zero all pointers in the audio frame.
gavl_pixelformat_chroma_sub
GAVL_PUBLIC void gavl_pixelformat_chroma_sub(gavl_pixelformat_t pixelformat, int *sub_h, int *sub_v)
Get the horizontal and vertical subsampling factors.
gavl_video_frame_t::user_data
void * user_data
Definition: gavl.h:2289
gavl_string_to_sample_format
GAVL_PUBLIC gavl_sample_format_t gavl_string_to_sample_format(const char *str)
Convert a string to a sample format.
gavl_overlay_t::dst_y
int dst_y
y offset in the destination frame. */
Definition: gavl.h:3532
gavl_audio_samples_t::s_32
int32_t * s_32
Definition: gavl.h:471
gavl_volume_control_set_volume
GAVL_PUBLIC void gavl_volume_control_set_volume(gavl_volume_control_t *ctrl, float volume)
Set volume for a volume control.
gavl_video_options_get_scale_order
GAVL_PUBLIC int gavl_video_options_get_scale_order(gavl_video_options_t *opt)
Get the scale order for GAVL_SCALE_SINC_LANCZOS.
gavl_rectangle_f_t::h
double h
Definition: gavl.h:1344
gavl_audio_options_create
GAVL_PUBLIC gavl_audio_options_t * gavl_audio_options_create()
Create an options container.
gavl_get_sample_format
GAVL_PUBLIC gavl_sample_format_t gavl_get_sample_format(int index)
Get the sample format from index.
GAVL_RGB_15
Definition: gavl.h:1708
gavl_rectangle_i_is_empty
GAVL_PUBLIC int gavl_rectangle_i_is_empty(const gavl_rectangle_i_t *r)
Check if an integer rectangle is empty.
gavl_video_format_fit_to_source
GAVL_PUBLIC void gavl_video_format_fit_to_source(gavl_video_format_t *dst, const gavl_video_format_t *src)
Set the image size of a destination format from a source format.
gavl_video_scaler_get_options
GAVL_PUBLIC gavl_video_options_t * gavl_video_scaler_get_options(gavl_video_scaler_t *scaler)
gets options of a scaler
gavl_num_sample_formats
GAVL_PUBLIC int gavl_num_sample_formats()
Get total number of supported sample formats.
gavl_rectangle_i_crop_to_format
GAVL_PUBLIC void gavl_rectangle_i_crop_to_format(gavl_rectangle_i_t *r, const gavl_video_format_t *format)
Crop an integer rectangle so it fits into the image size of a video format.
gavl_audio_frame_create
GAVL_PUBLIC gavl_audio_frame_t * gavl_audio_frame_create(const gavl_audio_format_t *format)
Create audio frame.
GAVL_YUV_411_P
Definition: gavl.h:1783
gavl_rectangle_crop_to_format_noscale
GAVL_PUBLIC void gavl_rectangle_crop_to_format_noscale(gavl_rectangle_i_t *src_rect, gavl_rectangle_i_t *dst_rect, const gavl_video_format_t *src_format, const gavl_video_format_t *dst_format)
Set 2 rectangles as source and destination when no scaling is available.
gavl_channel_id_to_string
GAVL_PUBLIC const char * gavl_channel_id_to_string(gavl_channel_id_t id)
Convert a gavl_channel_id_t to a human readable string.
gavl_set_channel_setup
GAVL_PUBLIC void gavl_set_channel_setup(gavl_audio_format_t *format)
Set the default channel setup and indices.
gavl_chroma_placement_to_string
GAVL_PUBLIC const char * gavl_chroma_placement_to_string(gavl_chroma_placement_t mode)
Translate a chroma placement into a human readable string.
gavl_rear_channels
GAVL_PUBLIC int gavl_rear_channels(const gavl_audio_format_t *format)
Get number of rear channels for a given format.
gavl_frame_table_timecode_to_time
GAVL_PUBLIC int64_t gavl_frame_table_timecode_to_time(const gavl_frame_table_t *t, gavl_timecode_t tc, const gavl_timecode_format_t *fmt)
Convert a timecode to a timestamp.
gavl_audio_frame_t::samples
gavl_audio_samples_t samples
Definition: gavl.h:516
gavl_string_to_pixelformat
GAVL_PUBLIC gavl_pixelformat_t gavl_string_to_pixelformat(const char *name)
Translate a pixelformat name into a pixelformat.
gavl_pixelformat_t
gavl_pixelformat_t
Pixelformat definition.
Definition: gavl.h:1675
gavl_downscale_filter_t
gavl_downscale_filter_t
Definition: gavl.h:2806
gavl_volume_control_destroy
GAVL_PUBLIC void gavl_volume_control_destroy(gavl_volume_control_t *ctrl)
Destroys a volume control and frees all associated memory.
gavl_video_options_set_scale_mode
GAVL_PUBLIC void gavl_video_options_set_scale_mode(gavl_video_options_t *opt, gavl_scale_mode_t scale_mode)
Set the scale mode.
gavl_scale_mode_t
gavl_scale_mode_t
Definition: gavl.h:2784
gavl_video_options_get_background_color
GAVL_PUBLIC void gavl_video_options_get_background_color(gavl_video_options_t *opt, float *color)
Get the background color for alpha blending.
gavl_audio_convert
GAVL_PUBLIC void gavl_audio_convert(gavl_audio_converter_t *cnv, const gavl_audio_frame_t *input_frame, gavl_audio_frame_t *output_frame)
Convert audio.
GAVL_CHID_REAR_RIGHT
Definition: gavl.h:244
gavl_channel_id_t
gavl_channel_id_t
Audio channel setup.
Definition: gavl.h:235
GAVL_SAMPLE_FLOAT
Definition: gavl.h:212
gavl_audio_frame_plot
GAVL_PUBLIC int gavl_audio_frame_plot(const gavl_audio_format_t *format, const gavl_audio_frame_t *frame, const char *name_base)
Plot an audio frame to an ASCII file.
GAVL_SCALE_CUBIC_BSPLINE
Definition: gavl.h:2790
gavl_video_options_set_downscale_filter
GAVL_PUBLIC void gavl_video_options_set_downscale_filter(gavl_video_options_t *opt, gavl_downscale_filter_t f)
Set antialiasing filter for downscaling.
gavl_frame_table_load
GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_load(const char *filename)
Load a frame table from a file.
GAVL_CCH_GREEN
Green.
Definition: gavl.h:1855
gavl_overlay_blend_context_get_options
GAVL_PUBLIC gavl_video_options_t * gavl_overlay_blend_context_get_options(gavl_overlay_blend_context_t *ctx)
Get options from a blend context.
gavl_audio_options_get_quality
GAVL_PUBLIC int gavl_audio_options_get_quality(gavl_audio_options_t *opt)
Get the quality level for a converter.
GAVL_RESAMPLE_SINC_MEDIUM
Definition: gavl.h:801
gavl_num_pixelformats
GAVL_PUBLIC int gavl_num_pixelformats()
Get total number of supported pixelformats.
gavl_video_frame_copy_plane
GAVL_PUBLIC void gavl_video_frame_copy_plane(const gavl_video_format_t *format, gavl_video_frame_t *dst, const gavl_video_frame_t *src, int plane)
Copy a single plane from one video frame to another.
GAVL_PIXFMT_PLANAR
#define GAVL_PIXFMT_PLANAR
Definition: gavl.h:1644
GAVL_YUV_422_P_16
Definition: gavl.h:1803
gavl_rectangle_i_crop_left
GAVL_PUBLIC void gavl_rectangle_i_crop_left(gavl_rectangle_i_t *r, int num_pixels)
Crop an integer rectangle by some pixels from the left border.
gavl_rectangle_i_t::w
int w
Definition: gavl.h:1331
GAVL_CHID_SIDE_LEFT
Definition: gavl.h:246
GAVL_INTERLACE_NONE
Definition: gavl.h:2095
gavl_audio_format_t::samples_per_frame
int samples_per_frame
Definition: gavl.h:262
gavl_audio_options_set_conversion_flags
GAVL_PUBLIC void gavl_audio_options_set_conversion_flags(gavl_audio_options_t *opt, int flags)
Set the conversion flags.
gavl_video_converter_create
GAVL_PUBLIC gavl_video_converter_t * gavl_video_converter_create()
Creates a video converter.
gavl_video_frame_ssim
GAVL_PUBLIC int gavl_video_frame_ssim(const gavl_video_frame_t *src1, const gavl_video_frame_t *src2, gavl_video_frame_t *dst, const gavl_video_format_t *format)
Calculate the SSIM of 2 source frames.
gavl_rectangle_i_set_all
GAVL_PUBLIC void gavl_rectangle_i_set_all(gavl_rectangle_i_t *r, const gavl_video_format_t *format)
Let an integer rectangle span the whole image size of a video format.
gavl_video_options_get_run_func
GAVL_PUBLIC gavl_video_run_func gavl_video_options_get_run_func(gavl_video_options_t *opt, void **client_data)
Get function to be passed to each thread.
gavl_rectangle_i_to_f
GAVL_PUBLIC void gavl_rectangle_i_to_f(gavl_rectangle_f_t *dst, const gavl_rectangle_i_t *src)
Convert an integer rectangle to a floating point rectangle.
gavl_video_frame_get_field
GAVL_PUBLIC void gavl_video_frame_get_field(gavl_pixelformat_t pixelformat, const gavl_video_frame_t *src, gavl_video_frame_t *dst, int field)
Get a field from a frame.
gavl_video_options_set_background_color
GAVL_PUBLIC void gavl_video_options_set_background_color(gavl_video_options_t *opt, const float *color)
Set the background color for alpha blending.
gavl_rectangle_i_align
GAVL_PUBLIC void gavl_rectangle_i_align(gavl_rectangle_i_t *r, int h_align, int v_align)
Align a rectangle.
gavl_audio_frame_t::timestamp
int64_t timestamp
Definition: gavl.h:519
gavl_frame_table_t::entries_alloc
int64_t entries_alloc
Number of allocated entries (never touch this)
Definition: gavl.h:3746
gavl_video_frame_clear
GAVL_PUBLIC void gavl_video_frame_clear(gavl_video_frame_t *frame, const gavl_video_format_t *format)
Fill the frame with black color.
gavl_video_frame_absdiff
GAVL_PUBLIC void gavl_video_frame_absdiff(gavl_video_frame_t *dst, const gavl_video_frame_t *src1, const gavl_video_frame_t *src2, const gavl_video_format_t *format)
Fill the frame with the absolute differene of 2 source frames.
gavl_frame_table_t::duration
int64_t duration
Duration of each of these frames.
Definition: gavl.h:3751
gavl_video_frame_set_strides
GAVL_PUBLIC void gavl_video_frame_set_strides(gavl_video_frame_t *frame, const gavl_video_format_t *format)
Set the strides according to the format.
GAVL_RGB_32
Definition: gavl.h:1729
gavl_video_options_get_quality
GAVL_PUBLIC int gavl_video_options_get_quality(gavl_video_options_t *opt)
Get the quality level for the converter.
gavl_frame_table_t::num_frames
int64_t num_frames
Number of frames.
Definition: gavl.h:3750
GAVL_PIXFMT_ALPHA
#define GAVL_PIXFMT_ALPHA
Definition: gavl.h:1664
gavl_video_options_t
struct gavl_video_options_s gavl_video_options_t
Definition: gavl.h:2820
gavl_video_scaler_init
GAVL_PUBLIC int gavl_video_scaler_init(gavl_video_scaler_t *scaler, const gavl_video_format_t *src_format, const gavl_video_format_t *dst_format)
Initialize a video scaler.
gavl_bytes_per_sample
GAVL_PUBLIC int gavl_bytes_per_sample(gavl_sample_format_t format)
Get the number of bytes per sample for a given sample format.
gavl_volume_control_set_format
GAVL_PUBLIC void gavl_volume_control_set_format(gavl_volume_control_t *ctrl, const gavl_audio_format_t *format)
Set format for a volume control.
gavl_peak_detector_update
GAVL_PUBLIC void gavl_peak_detector_update(gavl_peak_detector_t *pd, gavl_audio_frame_t *frame)
Feed the peak detector with a new frame.
gavl_interlace_mode_t
gavl_interlace_mode_t
Interlace mode.
Definition: gavl.h:2092
GAVL_SCALE_NONE
Definition: gavl.h:2794
GAVL_SCALE_CUBIC_CATMULL
Definition: gavl.h:2792
gavl_video_frame_copy_flip_y
GAVL_PUBLIC void gavl_video_frame_copy_flip_y(const gavl_video_format_t *format, gavl_video_frame_t *dst, const gavl_video_frame_t *src)
Copy one video frame to another with vertical flipping.
GAVL_ALPHA_BLEND_COLOR
Definition: gavl.h:2751
GAVL_PIXFMT_GRAY
#define GAVL_PIXFMT_GRAY
Definition: gavl.h:1669
gavl_video_options_create
GAVL_PUBLIC gavl_video_options_t * gavl_video_options_create()
Create an options container.
gavl_video_converter_get_options
GAVL_PUBLIC gavl_video_options_t * gavl_video_converter_get_options(gavl_video_converter_t *cnv)
gets options of a video converter
GAVL_RGB_24
Definition: gavl.h:1723
gavl_video_frames_equal
GAVL_PUBLIC int gavl_video_frames_equal(const gavl_video_format_t *format, const gavl_video_frame_t *f1, const gavl_video_frame_t *f2)
Check if 2 video frames are bit-identical.
GAVL_CHROMA_PLACEMENT_DEFAULT
Definition: gavl.h:2049
gavl_audio_samples_t::s_16
int16_t * s_16
Definition: gavl.h:468
gavl_rectangle_f_dump
GAVL_PUBLIC void gavl_rectangle_f_dump(const gavl_rectangle_f_t *r)
Dump a floating point rectangle to stderr.
gavl_frame_table_t::offset
int64_t offset
Timestamp of the first frame.
Definition: gavl.h:3743
GAVL_BGR_32
Definition: gavl.h:1732
gavl_video_format_copy
GAVL_PUBLIC void gavl_video_format_copy(gavl_video_format_t *dst, const gavl_video_format_t *src)
Copy one video format to another.
GAVL_SCALE_AUTO
Definition: gavl.h:2786
gavl_lfe_channels
GAVL_PUBLIC int gavl_lfe_channels(const gavl_audio_format_t *format)
Get number of LFE channels for a given format.
gavl_peak_detector_create
GAVL_PUBLIC gavl_peak_detector_t * gavl_peak_detector_create()
Create peak detector.
gavl_audio_frame_t::valid_samples
int valid_samples
Definition: gavl.h:518
gavl_rectangle_f_t::y
double y
Definition: gavl.h:1342
gavl_pixelformat_bits_per_pixel
GAVL_PUBLIC int gavl_pixelformat_bits_per_pixel(gavl_pixelformat_t pixelformat)
Get the effective number of bits for one pixel.
gavl_video_options_get_deinterlace_drop_mode
GAVL_PUBLIC gavl_deinterlace_drop_mode_t gavl_video_options_get_deinterlace_drop_mode(gavl_video_options_t *opt)
Get the deinterlace drop mode.
gavl_video_format_s::framerate_mode
gavl_framerate_mode_t framerate_mode
Definition: gavl.h:2138
gavl_audio_frame_t::channels
gavl_audio_channels_t channels
Definition: gavl.h:517
gavl_audio_format_t::center_level
float center_level
Definition: gavl.h:268
gavl_video_scaler_scale
GAVL_PUBLIC void gavl_video_scaler_scale(gavl_video_scaler_t *scaler, const gavl_video_frame_t *input_frame, gavl_video_frame_t *output_frame)
Scale video.
GAVL_YUV_444_P_16
Definition: gavl.h:1800
GAVL_CHID_FRONT_CENTER_LEFT
Definition: gavl.h:241
gavl_rectangle_f_crop_bottom
GAVL_PUBLIC void gavl_rectangle_f_crop_bottom(gavl_rectangle_f_t *r, double num_pixels)
Crop a float rectangle by some pixels from the bottom border.
GAVL_YUVA_64
Definition: gavl.h:1762
gavl_video_options_get_downscale_blur
GAVL_PUBLIC float gavl_video_options_get_downscale_blur(gavl_video_options_t *opt)
Get blur factor for downscaling.
gavl_video_options_get_deinterlace_mode
GAVL_PUBLIC gavl_deinterlace_mode_t gavl_video_options_get_deinterlace_mode(gavl_video_options_t *opt)
Get the deinterlace mode.
gavl_rectangle_f_to_i
GAVL_PUBLIC void gavl_rectangle_f_to_i(gavl_rectangle_i_t *dst, const gavl_rectangle_f_t *src)
Convert a floating point rectangle to an integer rectangle.
GAVL_CCH_CR
Chrominance red (aka V)
Definition: gavl.h:1859
gavl_audio_samples_t::u_8
uint8_t * u_8
Definition: gavl.h:464
gavl_image_transform_t
struct gavl_image_transform_s gavl_image_transform_t
Opaque image transformation engine.
Definition: gavl.h:3632
gavl_frame_table_append_entry
GAVL_PUBLIC void gavl_frame_table_append_entry(gavl_frame_table_t *t, int64_t duration)
Append an entry.
GAVL_ALPHA_IGNORE
Definition: gavl.h:2750
GAVL_INTERLEAVE_2
Definition: gavl.h:224
gavl_audio_channels_t
Container for noninterleaved audio samples.
Definition: gavl.h:482
gavl_video_scaler_init_convolve
GAVL_PUBLIC int gavl_video_scaler_init_convolve(gavl_video_scaler_t *scaler, const gavl_video_format_t *format, int h_radius, const float *h_coeffs, int v_radius, const float *v_coeffs)
Initialize a video scaler as a generic convolver.
gavl_overlay_blend_context_set_overlay
GAVL_PUBLIC void gavl_overlay_blend_context_set_overlay(gavl_overlay_blend_context_t *ctx, gavl_overlay_t *ovl)
Set a new overlay.
GAVL_CHID_AUX
Definition: gavl.h:249
gavl_audio_converter_reinit
GAVL_PUBLIC int gavl_audio_converter_reinit(gavl_audio_converter_t *cnv)
Reinitialize an audio converter.
gavl_frame_table_time_to_frame
GAVL_PUBLIC int64_t gavl_frame_table_time_to_frame(const gavl_frame_table_t *t, int64_t time, int64_t *start_time)
Convert a timestamp to a frame index.
gavl_video_options_set_defaults
GAVL_PUBLIC void gavl_video_options_set_defaults(gavl_video_options_t *opt)
Set all options to their defaults.
gavl_frame_table_num_frames
GAVL_PUBLIC int64_t gavl_frame_table_num_frames(const gavl_frame_table_t *t)
get the total number of frames
gavl_frame_table_destroy
GAVL_PUBLIC void gavl_frame_table_destroy(gavl_frame_table_t *t)
Destroy a frame table and free all memory.
gavl_video_frame_t::interlace_mode
gavl_interlace_mode_t interlace_mode
Definition: gavl.h:2292
gavl_video_options_set_deinterlace_mode
GAVL_PUBLIC void gavl_video_options_set_deinterlace_mode(gavl_video_options_t *opt, gavl_deinterlace_mode_t deinterlace_mode)
Set the deinterlace mode.
gavl_audio_converter_init
GAVL_PUBLIC int gavl_audio_converter_init(gavl_audio_converter_t *cnv, const gavl_audio_format_t *input_format, const gavl_audio_format_t *output_format)
Initialize an audio converter.
gavl_interleave_mode_to_string
GAVL_PUBLIC const char * gavl_interleave_mode_to_string(gavl_interleave_mode_t mode)
Convert a gavl_interleave_mode_t to a human readable string.
GAVL_PIXFMT_YUV
#define GAVL_PIXFMT_YUV
Definition: gavl.h:1654
GAVL_MAX_CHANNELS
#define GAVL_MAX_CHANNELS
Maximum number of audio channels.
Definition: gavl.h:196
gavl_image_transform_destroy
GAVL_PUBLIC void gavl_image_transform_destroy(gavl_image_transform_t *t)
Destroy a transformation engine.
gavl_frame_table_dump
GAVL_PUBLIC void gavl_frame_table_dump(const gavl_frame_table_t *t)
Dump a frame table to stderr for debugging.
gavl_video_format_s::pixel_height
int pixel_height
Definition: gavl.h:2130
gavl_video_format_s::frame_duration
int frame_duration
Definition: gavl.h:2134
GAVL_YUVA_32
Definition: gavl.h:1759
gavl_video_format_get_chroma_offset
GAVL_PUBLIC void gavl_video_format_get_chroma_offset(const gavl_video_format_t *format, int field, int plane, float *off_x, float *off_y)
Get the chroma offsets relative to the luma samples.
gavl_audio_frame_destroy
GAVL_PUBLIC void gavl_audio_frame_destroy(gavl_audio_frame_t *frame)
Destroy an audio frame.
GAVL_BGR_16
Definition: gavl.h:1720
GAVL_BGR_24
Definition: gavl.h:1726
gavl_image_transform_func
void(* gavl_image_transform_func)(void *priv, double xdst, double ydst, double *xsrc, double *ysrc)
Function describing the method.
Definition: gavl.h:3647
gavl_video_frame_null
GAVL_PUBLIC void gavl_video_frame_null(gavl_video_frame_t *frame)
Zero all pointers in the video frame.
gavl_video_converter_t
struct gavl_video_converter_s gavl_video_converter_t
Opaque video converter structure.
Definition: gavl.h:3220
GAVL_BGR_15
Definition: gavl.h:1712
gavl_timecode_t
uint64_t gavl_timecode_t
Typedef for timecodes.
Definition: timecode.h:43
gavl_video_format_s::pixel_width
int pixel_width
Definition: gavl.h:2129
gavl_frame_table_t::pts
int64_t pts
Timestamp of this frame.
Definition: gavl.h:3759
GAVL_RESAMPLE_SINC_FAST
Definition: gavl.h:800
gavl_video_frame_t
Definition: gavl.h:2284
gavl_video_options_get_scale_mode
GAVL_PUBLIC gavl_scale_mode_t gavl_video_options_get_scale_mode(gavl_video_options_t *opt)
Get the scale mode.
gavl_volume_control_apply
GAVL_PUBLIC void gavl_volume_control_apply(gavl_volume_control_t *ctrl, gavl_audio_frame_t *frame)
Apply a volume control for an audio frame.
GAVL_INTERLACE_TOP_FIRST
Definition: gavl.h:2096
GAVL_YUVJ_444_P
Definition: gavl.h:1796
GAVL_GRAYA_16
Definition: gavl.h:1695
gavl_video_format_s::frame_width
int frame_width
Definition: gavl.h:2121
gavl_volume_control_create
GAVL_PUBLIC gavl_volume_control_t * gavl_volume_control_create()
Create volume control.
gavl_video_options_set_downscale_blur
GAVL_PUBLIC void gavl_video_options_set_downscale_blur(gavl_video_options_t *opt, float f)
Set blur factor for downscaling.
GAVL_CHID_FRONT_CENTER_RIGHT
Definition: gavl.h:242
gavl_front_channels
GAVL_PUBLIC int gavl_front_channels(const gavl_audio_format_t *format)
Get number of front channels for a given format.
GAVL_SCALE_SINC_LANCZOS
Definition: gavl.h:2793
GAVL_CCH_RED
Red.
Definition: gavl.h:1854
GAVL_DEINTERLACE_COPY
Definition: gavl.h:2763
gavl_rectangle_f_t::x
double x
Definition: gavl.h:1341
gavl_audio_options_copy
GAVL_PUBLIC void gavl_audio_options_copy(gavl_audio_options_t *dst, const gavl_audio_options_t *src)
Copy audio options.
gavl_frame_table_create_cfr
GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_create_cfr(int64_t offset, int64_t frame_duration, int64_t num_frames, gavl_timecode_t start_timecode)
Create a frame table for constant framerate video.
GAVL_CHID_FRONT_LEFT
Definition: gavl.h:239
gavl_rectangle_i_crop_right
GAVL_PUBLIC void gavl_rectangle_i_crop_right(gavl_rectangle_i_t *r, int num_pixels)
Crop an integer rectangle by some pixels from the right border.
gavl_interlace_mode_to_string
GAVL_PUBLIC const char * gavl_interlace_mode_to_string(gavl_interlace_mode_t mode)
Translate an interlace mode into a human readable string.
gavl_video_frame_copy_metadata
GAVL_PUBLIC void gavl_video_frame_copy_metadata(gavl_video_frame_t *dst, const gavl_video_frame_t *src)
Copy metadata of one video frame to another.
gavl_video_frame_copy_flip_xy
GAVL_PUBLIC void gavl_video_frame_copy_flip_xy(const gavl_video_format_t *format, gavl_video_frame_t *dst, const gavl_video_frame_t *src)
Copy one video frame to another with horizontal and vertical flipping.
gavl_video_frame_insert_channel
GAVL_PUBLIC int gavl_video_frame_insert_channel(const gavl_video_format_t *format, gavl_color_channel_t ch, const gavl_video_frame_t *src, gavl_video_frame_t *dst)
Insert one channel from a grayscale image into a video frame.
GAVL_SAMPLE_U8
Definition: gavl.h:207
GAVL_SCALE_CUBIC_MITCHELL
Definition: gavl.h:2791
GAVL_YUVJ_422_P
Definition: gavl.h:1793
GAVL_GRAY_FLOAT
Definition: gavl.h:1691
gavl_rectangle_i_t::x
int x
Definition: gavl.h:1329
gavl_video_converter_destroy
GAVL_PUBLIC void gavl_video_converter_destroy(gavl_video_converter_t *cnv)
Destroys a video converter and frees all associated memory.
GAVL_CHID_REAR_CENTER
Definition: gavl.h:245
gavl_image_transform_get_options
GAVL_PUBLIC gavl_video_options_t * gavl_image_transform_get_options(gavl_image_transform_t *t)
Get transformation options.
gavl_audio_frame_copy_ptrs
GAVL_PUBLIC void gavl_audio_frame_copy_ptrs(const gavl_audio_format_t *format, gavl_audio_frame_t *dst, const gavl_audio_frame_t *src)
Copy audio data from one frame to another.
GAVL_DOWNSCALE_FILTER_WIDE
Widen the filter curve according to the scaling ratio.
Definition: gavl.h:2810
gavl_audio_format_t::samplerate
int samplerate
Definition: gavl.h:263
gavl_audio_format_t::interleave_mode
gavl_interleave_mode_t interleave_mode
Definition: gavl.h:266
gavl_audio_samples_t::f
float * f
Definition: gavl.h:473
gavl_rectangle_i_t
Definition: gavl.h:1327
gavl_audio_converter_destroy
GAVL_PUBLIC void gavl_audio_converter_destroy(gavl_audio_converter_t *cnv)
Destroys an audio converter and frees all associated memory.
gavl_rectangle_f_is_empty
GAVL_PUBLIC int gavl_rectangle_f_is_empty(const gavl_rectangle_f_t *r)
Check if a float rectangle is empty.
gavl_sample_format_t
gavl_sample_format_t
Format of one audio sample.
Definition: gavl.h:204
gavl_rectangle_i_copy
GAVL_PUBLIC void gavl_rectangle_i_copy(gavl_rectangle_i_t *dst, const gavl_rectangle_i_t *src)
Copy an integer rectangle.
gavl_rectangle_f_crop_top
GAVL_PUBLIC void gavl_rectangle_f_crop_top(gavl_rectangle_f_t *r, double num_pixels)
Crop a float rectangle by some pixels from the top border.
gavl_peak_detector_destroy
GAVL_PUBLIC void gavl_peak_detector_destroy(gavl_peak_detector_t *pd)
Destroys a peak detector and frees all associated memory.
gavl_audio_frame_get_subframe
GAVL_PUBLIC void gavl_audio_frame_get_subframe(const gavl_audio_format_t *format, gavl_audio_frame_t *src, gavl_audio_frame_t *dst, int start, int len)
Set an audio frame to a subframe of another frame.
gavl_overlay_blend_context_create
GAVL_PUBLIC gavl_overlay_blend_context_t * gavl_overlay_blend_context_create()
Create a blend context.
gavl_chroma_placement_t
gavl_chroma_placement_t
Chroma placement.
Definition: gavl.h:2047
gavl_video_format_s::chroma_placement
gavl_chroma_placement_t chroma_placement
Definition: gavl.h:2139
gavl_video_scaler_destroy
GAVL_PUBLIC void gavl_video_scaler_destroy(gavl_video_scaler_t *scaler)
Destroy a video scaler.
GAVL_RGB_FLOAT
Definition: gavl.h:1746
gavl_rectangle_i_crop_bottom
GAVL_PUBLIC void gavl_rectangle_i_crop_bottom(gavl_rectangle_i_t *r, int num_pixels)
Crop an integer rectangle by some pixels from the bottom border.
GAVL_DEINTERLACE_BLEND
Definition: gavl.h:2765
gavl_video_format_get_image_size
GAVL_PUBLIC int gavl_video_format_get_image_size(const gavl_video_format_t *format)
Get the unpadded image size.
gavl_audio_dither_mode_t
gavl_audio_dither_mode_t
Dither mode.
Definition: gavl.h:782
GAVL_PIXFMT_RGB
#define GAVL_PIXFMT_RGB
Definition: gavl.h:1649
gavl_audio_format_t::rear_level
float rear_level
Definition: gavl.h:269
GAVL_RGBA_FLOAT
Definition: gavl.h:1749
gavl_video_options_get_conversion_flags
GAVL_PUBLIC int gavl_video_options_get_conversion_flags(gavl_video_options_t *opt)
Get the conversion flags.
gavl_pixelformat_conversion_penalty
GAVL_PUBLIC int gavl_pixelformat_conversion_penalty(gavl_pixelformat_t src, gavl_pixelformat_t dst)
Get the conversion penalty for pixelformat conversions.
gavl_audio_samples_t::d
double * d
Definition: gavl.h:474
GAVL_PIXELFORMAT_NONE
Undefined.
Definition: gavl.h:1679
GAVL_CHID_SIDE_RIGHT
Definition: gavl.h:247
gavl_frame_table_frame_to_time
GAVL_PUBLIC int64_t gavl_frame_table_frame_to_time(const gavl_frame_table_t *t, int64_t frame, int *duration)
Convert a frame index to a timestamp.
gavl_frame_table_create
GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_create()
Create a frame table.
GAVL_YUV_420_P
Definition: gavl.h:1774
GAVL_DOWNSCALE_FILTER_GAUSS
Do a Gaussian preblur.
Definition: gavl.h:2811
GAVL_SCALE_BILINEAR
Definition: gavl.h:2788
gavl_aux_channels
GAVL_PUBLIC int gavl_aux_channels(const gavl_audio_format_t *format)
Get number of aux channels for a given format.
gavl_video_frame_extract_channel
GAVL_PUBLIC int gavl_video_frame_extract_channel(const gavl_video_format_t *format, gavl_color_channel_t ch, const gavl_video_frame_t *src, gavl_video_frame_t *dst)
Extract one channel of a video frame into a grayscale image.
gavl_frame_table_copy
GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_copy(const gavl_frame_table_t *tab)
Copy a frame table to another.
GAVL_RGB_48
Definition: gavl.h:1739
GAVL_CHID_REAR_LEFT
Definition: gavl.h:243
gavl_video_frame_t::timecode
gavl_timecode_t timecode
Definition: gavl.h:2293
gavl_pixelformat_bytes_per_pixel
GAVL_PUBLIC int gavl_pixelformat_bytes_per_pixel(gavl_pixelformat_t pixelformat)
Get bytes per pixel for packed formats.
gavl_video_converter_reinit
GAVL_PUBLIC int gavl_video_converter_reinit(gavl_video_converter_t *cnv)
Reinitialize a video converter.
gavl_rectangle_f_copy
GAVL_PUBLIC void gavl_rectangle_f_copy(gavl_rectangle_f_t *dst, const gavl_rectangle_f_t *src)
Copy a float rectangle.
gavl_overlay_t
Overlay structure.
Definition: gavl.h:3527
gavl_get_pixelformat
GAVL_PUBLIC gavl_pixelformat_t gavl_get_pixelformat(int index)
Get the pixelformat from index.
gavl_deinterlace_mode_t
gavl_deinterlace_mode_t
Definition: gavl.h:2760
gavl_audio_options_set_quality
GAVL_PUBLIC void gavl_audio_options_set_quality(gavl_audio_options_t *opt, int quality)
Set the quality level for the converter.
gavl_rectangle_f_crop_to_format
GAVL_PUBLIC void gavl_rectangle_f_crop_to_format(gavl_rectangle_f_t *r, const gavl_video_format_t *format)
Crop a floating point rectangle so it fits into the image size of a video format. ...
gavl_rectangle_f_set_all
GAVL_PUBLIC void gavl_rectangle_f_set_all(gavl_rectangle_f_t *r, const gavl_video_format_t *format)
Let a float rectangle span the whole image size of a video format.
gavl_image_transform_init
GAVL_PUBLIC int gavl_image_transform_init(gavl_image_transform_t *t, gavl_video_format_t *format, gavl_image_transform_func func, void *priv)
Initialize a transformation engine.
gavl_sample_format_to_string
GAVL_PUBLIC const char * gavl_sample_format_to_string(gavl_sample_format_t format)
Convert a gavl_sample_format_t to a human readable string.
GAVL_DEINTERLACE_SCALE
Definition: gavl.h:2764
GAVL_DEINTERLACE_DROP_TOP
Definition: gavl.h:2776
GAVL_GRAY_16
Definition: gavl.h:1687
GAVL_YUY2
Definition: gavl.h:1753
gavl_side_channels
GAVL_PUBLIC int gavl_side_channels(const gavl_audio_format_t *format)
Get number of side channels for a given format.
GAVL_SAMPLE_U16
Definition: gavl.h:209
gavl_video_frame_destroy
GAVL_PUBLIC void gavl_video_frame_destroy(gavl_video_frame_t *frame)
Destroy a video frame.
gavl_audio_converter_get_options
GAVL_PUBLIC gavl_audio_options_t * gavl_audio_converter_get_options(gavl_audio_converter_t *cnv)
gets options of an audio converter
gavl_audio_options_destroy
GAVL_PUBLIC void gavl_audio_options_destroy(gavl_audio_options_t *opt)
Destroy audio options.
GAVL_RESAMPLE_AUTO
Definition: gavl.h:797
gavl_image_transform_create
GAVL_PUBLIC gavl_image_transform_t * gavl_image_transform_create()
Create a transformation engine.
gavl_overlay_t::frame
gavl_video_frame_t * frame
Video frame in an alpha capable format */.
Definition: gavl.h:3529
gavl_overlay_blend
GAVL_PUBLIC void gavl_overlay_blend(gavl_overlay_blend_context_t *ctx, gavl_video_frame_t *dst_frame)
Blend overlay onto video frame.
GAVL_CHROMA_PLACEMENT_MPEG2
Definition: gavl.h:2050
gavl_audio_converter_init_resample
GAVL_PUBLIC int gavl_audio_converter_init_resample(gavl_audio_converter_t *cnv, const gavl_audio_format_t *format)
Initialize an audio converter just for resampling.
GAVL_FRAMERATE_CONSTANT
Definition: gavl.h:2072
gavl_video_converter_init
GAVL_PUBLIC int gavl_video_converter_init(gavl_video_converter_t *cnv, const gavl_video_format_t *input_format, const gavl_video_format_t *output_format)
Initialize a video converter.
gavl_video_deinterlacer_t
struct gavl_video_deinterlacer_s gavl_video_deinterlacer_t
Opaque deinterlacer structure.
Definition: gavl.h:3436
gavl_video_frame_set_planes
GAVL_PUBLIC void gavl_video_frame_set_planes(gavl_video_frame_t *frame, const gavl_video_format_t *format, uint8_t *buffer)
Set the frames according to the format.
GAVL_CCH_BLUE
Blue.
Definition: gavl.h:1856
gavl_rectangle_f_t
Definition: gavl.h:1339
gavl_overlay_blend_context_t
struct gavl_overlay_blend_context_s gavl_overlay_blend_context_t
Opaque blend context.
Definition: gavl.h:3541
gavl_video_process_func
void(* gavl_video_process_func)(void *data, int start, int end)
Prototype of a process function.
Definition: gavl.h:64
GAVL_CHROMA_PLACEMENT_DVPAL
Definition: gavl.h:2051
GAVL_SAMPLE_DOUBLE
Definition: gavl.h:213
gavl_video_frame_get_subframe
GAVL_PUBLIC void gavl_video_frame_get_subframe(gavl_pixelformat_t pixelformat, const gavl_video_frame_t *src, gavl_video_frame_t *dst, gavl_rectangle_i_t *src_rect)
Get a subframe of another frame.
gavl_audio_samples_t
Container for interleaved audio samples.
Definition: gavl.h:462
GAVL_GRAYA_FLOAT
Definition: gavl.h:1703
gavl_overlay_blend_context_destroy
GAVL_PUBLIC void gavl_overlay_blend_context_destroy(gavl_overlay_blend_context_t *ctx)
Destroy a blend context and free all associated memory.
gavl_video_frame_t::duration
int64_t duration
Definition: gavl.h:2291
gavl_video_frame_fill
GAVL_PUBLIC void gavl_video_frame_fill(gavl_video_frame_t *frame, const gavl_video_format_t *format, const float *color)
Fill the frame with a user spefified color.
gavl_video_frame_create_nopad
GAVL_PUBLIC gavl_video_frame_t * gavl_video_frame_create_nopad(const gavl_video_format_t *format)
Create video frame without padding.
gavl_framerate_mode_t
gavl_framerate_mode_t
Framerate mode.
Definition: gavl.h:2069
gavl_rectangle_i_t::h
int h
Definition: gavl.h:1332
GAVL_YUV_422_P
Definition: gavl.h:1777
GAVL_SAMPLE_S8
Definition: gavl.h:208
gavl_video_scaler_create
GAVL_PUBLIC gavl_video_scaler_t * gavl_video_scaler_create()
Create a video scaler.
gavl_rectangle_f_crop_right
GAVL_PUBLIC void gavl_rectangle_f_crop_right(gavl_rectangle_f_t *r, double num_pixels)
Crop a float rectangle by some pixels from the right border.
gavl_audio_format_copy
GAVL_PUBLIC void gavl_audio_format_copy(gavl_audio_format_t *dst, const gavl_audio_format_t *src)
Copy one audio format to another.
gavl_video_options_set_alpha_mode
GAVL_PUBLIC void gavl_video_options_set_alpha_mode(gavl_video_options_t *opt, gavl_alpha_mode_t alpha_mode)
Set the alpha mode.
GAVL_PIXFMT_YUVJ
#define GAVL_PIXFMT_YUVJ
Definition: gavl.h:1659
gavl_video_run_func
void(* gavl_video_run_func)(gavl_video_process_func func, void *gavl_data, int start, int end, void *client_data, int thread)
Run a piece of a calculation.
Definition: gavl.h:79
GAVL_DEINTERLACE_DROP_BOTTOM
Definition: gavl.h:2777
gavl_audio_samples_t::u_32
uint32_t * u_32
Definition: gavl.h:470
GAVL_MAX_PLANES
#define GAVL_MAX_PLANES
Definition: gavl.h:1315
gavl_resample_mode_t
gavl_resample_mode_t
Resample mode.
Definition: gavl.h:795
gavl_interleave_mode_t
gavl_interleave_mode_t
Definition: gavl.h:221
GAVL_RGBA_64
Definition: gavl.h:1742
GAVL_SAMPLE_S32
Definition: gavl.h:211
gavl_rectangle_f_crop_left
GAVL_PUBLIC void gavl_rectangle_f_crop_left(gavl_rectangle_f_t *r, double num_pixels)
Crop a float rectangle by some pixels from the left border.
gavl_image_transform_transform
GAVL_PUBLIC void gavl_image_transform_transform(gavl_image_transform_t *t, gavl_video_frame_t *in_frame, gavl_video_frame_t *out_frame)
Transform an image.
gavl_video_deinterlacer_deinterlace
GAVL_PUBLIC void gavl_video_deinterlacer_deinterlace(gavl_video_deinterlacer_t *deinterlacer, const gavl_video_frame_t *input_frame, gavl_video_frame_t *output_frame)
Deinterlace video.
gavl_rectangle_i_t::y
int y
Definition: gavl.h:1330
gavl_video_deinterlacer_create
GAVL_PUBLIC gavl_video_deinterlacer_t * gavl_video_deinterlacer_create()
Create a video deinterlacer.
gavl_video_stop_func
void(* gavl_video_stop_func)(void *client_data, int thread)
Wait until a piece of a calculation finished.
Definition: gavl.h:92
gavl_video_format_s::image_height
int image_height
Definition: gavl.h:2125
GAVL_FRAMERATE_VARIABLE
Definition: gavl.h:2073
GAVL_SAMPLE_S16
Definition: gavl.h:210
gavl_audio_options_get_dither_mode
GAVL_PUBLIC gavl_audio_dither_mode_t gavl_audio_options_get_dither_mode(gavl_audio_options_t *opt)
Get the dither mode for the converter.
gavl_audio_options_get_conversion_flags
GAVL_PUBLIC int gavl_audio_options_get_conversion_flags(gavl_audio_options_t *opt)
Get the conversion flags.
gavl_video_options_set_num_threads
GAVL_PUBLIC void gavl_video_options_set_num_threads(gavl_video_options_t *opt, int n)
Set number of threads.
gavl_frame_table_end_time
GAVL_PUBLIC int64_t gavl_frame_table_end_time(const gavl_frame_table_t *t)
get the end time of the last frame
GAVL_YUV_410_P
Definition: gavl.h:1786
gavl_audio_frame_mute_samples
GAVL_PUBLIC void gavl_audio_frame_mute_samples(gavl_audio_frame_t *frame, const gavl_audio_format_t *format, int num_samples)
Mute a number of samples at the start of an audio frame.
gavl_pixelformat_get_best
GAVL_PUBLIC gavl_pixelformat_t gavl_pixelformat_get_best(gavl_pixelformat_t src, const gavl_pixelformat_t *dst_supported, int *penalty)
Get the best destination format for a given source format.
GAVL_CHID_FRONT_CENTER
Definition: gavl.h:238
gavl_video_formats_equal
GAVL_PUBLIC int gavl_video_formats_equal(const gavl_video_format_t *format_1, const gavl_video_format_t *format_2)
Compare 2 video formats.
GAVL_CHID_NONE
Definition: gavl.h:237
gavl_audio_options_set_defaults
GAVL_PUBLIC void gavl_audio_options_set_defaults(gavl_audio_options_t *opt)
Set all options to their defaults.
gavl_audio_format_dump
GAVL_PUBLIC void gavl_audio_format_dump(const gavl_audio_format_t *format)
Dump an audio format to stderr.
gavl_video_options_get_num_threads
GAVL_PUBLIC int gavl_video_options_get_num_threads(gavl_video_options_t *opt)
Set number of threads.
gavl_video_format_s::interlace_mode
gavl_interlace_mode_t interlace_mode
Definition: gavl.h:2141
gavl_audio_converter_t
struct gavl_audio_converter_s gavl_audio_converter_t
Opaque audio converter structure.
Definition: gavl.h:993
gavl_video_format_s::timecode_format
gavl_timecode_format_t timecode_format
Definition: gavl.h:2143
gavl_pixelformat_to_string
GAVL_PUBLIC const char * gavl_pixelformat_to_string(gavl_pixelformat_t pixelformat)
Translate a pixelformat into a human readable string.
GAVL_GRAYA_32
Definition: gavl.h:1699
gavl_video_format_s::image_width
int image_width
Definition: gavl.h:2124
GAVL_CCH_CB
Chrominance blue (aka U)
Definition: gavl.h:1858
gavl_video_options_set_run_func
GAVL_PUBLIC void gavl_video_options_set_run_func(gavl_video_options_t *opt, gavl_video_run_func func, void *client_data)
Set function to be passed to each thread.
gavl_audio_format_t::sample_format
gavl_sample_format_t sample_format
Definition: gavl.h:265
gavl_video_format_s::frame_height
int frame_height
Definition: gavl.h:2122
gavl_video_options_set_rectangles
GAVL_PUBLIC void gavl_video_options_set_rectangles(gavl_video_options_t *opt, const gavl_rectangle_f_t *src_rect, const gavl_rectangle_i_t *dst_rect)
Set source and destination rectangles.
gavl_audio_frame_t::channel_stride
int channel_stride
Definition: gavl.h:520
gavl_rectangle_crop_to_format_scale
GAVL_PUBLIC void gavl_rectangle_crop_to_format_scale(gavl_rectangle_f_t *src_rect, gavl_rectangle_i_t *dst_rect, const gavl_video_format_t *src_format, const gavl_video_format_t *dst_format)
Crop 2 rectangles to their formats when scaling is available.
gavl_frame_table_append_timecode
GAVL_PUBLIC void gavl_frame_table_append_timecode(gavl_frame_table_t *t, int64_t pts, gavl_timecode_t tc)
Append a timecodes.
gavl_framerate_mode_to_string
GAVL_PUBLIC const char * gavl_framerate_mode_to_string(gavl_framerate_mode_t mode)
Translate a framerate mode into a human readable string.
gavl_video_options_get_downscale_filter
GAVL_PUBLIC gavl_downscale_filter_t gavl_video_options_get_downscale_filter(gavl_video_options_t *opt)
Get the antialiasing filter for downscaling.
gavl_rectangle_i_crop_top
GAVL_PUBLIC void gavl_rectangle_i_crop_top(gavl_rectangle_i_t *r, int num_pixels)
Crop an integer rectangle by some pixels from the top border.
GAVL_INTERLACE_UNKNOWN
Definition: gavl.h:2094
gavl_audio_converter_create
GAVL_PUBLIC gavl_audio_converter_t * gavl_audio_converter_create()
Creates an audio converter.
GAVL_DEINTERLACE_NONE
Definition: gavl.h:2762
gavl_video_deinterlacer_get_options
GAVL_PUBLIC gavl_video_options_t * gavl_video_deinterlacer_get_options(gavl_video_deinterlacer_t *deinterlacer)
gets options of a deinterlacer
GAVL_SCALE_QUADRATIC
Definition: gavl.h:2789
gavl_video_convert
GAVL_PUBLIC void gavl_video_convert(gavl_video_converter_t *cnv, const gavl_video_frame_t *input_frame, gavl_video_frame_t *output_frame)
Convert video.
gavl_channel_index
GAVL_PUBLIC int gavl_channel_index(const gavl_audio_format_t *format, gavl_channel_id_t id)
Get the index of a particular channel for a given format.
gavl_audio_options_get_mix_matrix
GAVL_PUBLIC const double ** gavl_audio_options_get_mix_matrix(gavl_audio_options_t *opt)
Get the mix matrix.
gavl_video_options_get_rectangles
GAVL_PUBLIC void gavl_video_options_get_rectangles(gavl_video_options_t *opt, gavl_rectangle_f_t *src_rect, gavl_rectangle_i_t *dst_rect)
Get source and destination rectangles.
gavl_audio_format_t
Audio Format.
Definition: gavl.h:260
gavl_frame_table_t
frame table structure
Definition: gavl.h:3741
gavl_audio_frame_mute
GAVL_PUBLIC void gavl_audio_frame_mute(gavl_audio_frame_t *frame, const gavl_audio_format_t *format)
Mute an audio frame.
gavl_audio_options_set_resample_mode
GAVL_PUBLIC void gavl_audio_options_set_resample_mode(gavl_audio_options_t *opt, gavl_resample_mode_t mode)
Set the resample mode for the converter.
GAVL_YUVA_FLOAT
Definition: gavl.h:1769
gavl_rectangle_fit_aspect
GAVL_PUBLIC void gavl_rectangle_fit_aspect(gavl_rectangle_i_t *dst_rect, const gavl_video_format_t *src_format, const gavl_rectangle_f_t *src_rect, const gavl_video_format_t *dst_format, float zoom, float squeeze)
Calculate a destination rectangle for scaling.
GAVL_SCALE_NEAREST
Definition: gavl.h:2787
gavl_frame_table_t::num_entries
int64_t num_entries
Number of entries.
Definition: gavl.h:3745
gavl_video_frame_create
GAVL_PUBLIC gavl_video_frame_t * gavl_video_frame_create(const gavl_video_format_t *format)
Create video frame.
gavl_video_frame_psnr
GAVL_PUBLIC void gavl_video_frame_psnr(double *psnr, const gavl_video_frame_t *src1, const gavl_video_frame_t *src2, const gavl_video_format_t *format)
Calculate the PSNR of 2 source frames.
GAVL_INTERLACE_BOTTOM_FIRST
Definition: gavl.h:2097
gavl_video_options_set_deinterlace_drop_mode
GAVL_PUBLIC void gavl_video_options_set_deinterlace_drop_mode(gavl_video_options_t *opt, gavl_deinterlace_drop_mode_t deinterlace_drop_mode)
Set the deinterlace drop mode.
gavl_pixelformat_num_planes
GAVL_PUBLIC int gavl_pixelformat_num_planes(gavl_pixelformat_t pixelformat)
Get the number of planes.
GAVL_RESAMPLE_SINC_BEST
Definition: gavl.h:802
gavl_accel_supported
GAVL_PUBLIC int gavl_accel_supported()
Get the supported acceleration flags.
GAVL_RGB_16
Definition: gavl.h:1716
gavl_video_deinterlacer_init
GAVL_PUBLIC int gavl_video_deinterlacer_init(gavl_video_deinterlacer_t *deinterlacer, const gavl_video_format_t *src_format)
Initialize a video deinterlacer.
gavl_audio_options_set_dither_mode
GAVL_PUBLIC void gavl_audio_options_set_dither_mode(gavl_audio_options_t *opt, gavl_audio_dither_mode_t mode)
Set the dither mode for the converter.
gavl_frame_table_duration
GAVL_PUBLIC int64_t gavl_frame_table_duration(const gavl_frame_table_t *t)
get the total duration of all frames
gavl_video_format_s::pixelformat
gavl_pixelformat_t pixelformat
Definition: gavl.h:2132
gavl_audio_frame_copy
GAVL_PUBLIC int gavl_audio_frame_copy(const gavl_audio_format_t *format, gavl_audio_frame_t *dst, const gavl_audio_frame_t *src, int dst_pos, int src_pos, int dst_size, int src_size)
Copy audio data from one frame to another.
gavl_frame_table_t::timecodes_alloc
int timecodes_alloc
Number of allocated timecodes (never touch this)
Definition: gavl.h:3755
gavl_overlay_blend_context_init
GAVL_PUBLIC int gavl_overlay_blend_context_init(gavl_overlay_blend_context_t *ctx, const gavl_video_format_t *frame_format, gavl_video_format_t *overlay_format)
Initialize the blend context.
GAVL_DOWNSCALE_FILTER_NONE
Fastest method, might produce heavy aliasing artifacts.
Definition: gavl.h:2809
gavl_rectangle_i_align_to_format
GAVL_PUBLIC void gavl_rectangle_i_align_to_format(gavl_rectangle_i_t *r, const gavl_video_format_t *format)
Align a rectangle to a format.
GAVL_YUV_444_P
Definition: gavl.h:1780
GAVL_FRAMERATE_UNKNOWN
Definition: gavl.h:2071
gavl_video_scaler_t
struct gavl_video_scaler_s gavl_video_scaler_t
Opaque scaler structure.
Definition: gavl.h:3336
gavl_deinterlace_drop_mode_t
gavl_deinterlace_drop_mode_t
Specifies which field to drop when deinterlacing.
Definition: gavl.h:2774
gavl_rectangle_i_dump
GAVL_PUBLIC void gavl_rectangle_i_dump(const gavl_rectangle_i_t *r)
Dump a rectangle to stderr.
gavl_audio_options_set_mix_matrix
GAVL_PUBLIC void gavl_audio_options_set_mix_matrix(gavl_audio_options_t *opt, const double **matrix)
Set a user defined mix matrix.
GAVL_YUV_FLOAT
Definition: gavl.h:1765
GAVL_RESAMPLE_ZOH
Definition: gavl.h:798
gavl_audio_frame_mute_channel
GAVL_PUBLIC void gavl_audio_frame_mute_channel(gavl_audio_frame_t *frame, const gavl_audio_format_t *format, int channel)
Mute a single channel of an audio frame.
GAVL_CHID_LFE
Definition: gavl.h:248
GAVL_CCH_ALPHA
Transparency (or, to be more precise opacity)
Definition: gavl.h:1860
gavl_overlay_t::ovl_rect
gavl_rectangle_i_t ovl_rect
Rectangle in the source frame */.
Definition: gavl.h:3530
GAVL_INTERLACE_MIXED_BOTTOM
Definition: gavl.h:2100
gavl_video_format_s::timescale
int timescale
Definition: gavl.h:2136
GAVL_DOWNSCALE_FILTER_AUTO
Auto selection based on quality.
Definition: gavl.h:2808
gavl_video_format_dump
GAVL_PUBLIC void gavl_video_format_dump(const gavl_video_format_t *format)
Dump a video format to stderr.
gavl_get_color_channel_format
GAVL_PUBLIC int gavl_get_color_channel_format(const gavl_video_format_t *frame_format, gavl_video_format_t *channel_format, gavl_color_channel_t ch)
Get the video format for extracting/merging one channel.
GAVL_RGBA_32
Definition: gavl.h:1735
gavl_frame_table_time_to_timecode
GAVL_PUBLIC gavl_timecode_t gavl_frame_table_time_to_timecode(const gavl_frame_table_t *t, int64_t time, int64_t *start_time, const gavl_timecode_format_t *fmt)
Convert a timestamp to a timecode.
gavl_video_options_copy
GAVL_PUBLIC void gavl_video_options_copy(gavl_video_options_t *dst, const gavl_video_options_t *src)
Copy video options.
gavl_video_frame_dump
GAVL_PUBLIC void gavl_video_frame_dump(gavl_video_frame_t *frame, const gavl_video_format_t *format, const char *namebase)
Dump a video frame to files.
gavl_peak_detector_t
struct gavl_peak_detector_s gavl_peak_detector_t
Opaque structure for peak detector.
Definition: gavl.h:1221
gavl_peak_detector_reset
GAVL_PUBLIC void gavl_peak_detector_reset(gavl_peak_detector_t *pd)
Reset a peak detector.
gavl_video_format_s
Video format.
Definition: gavl.h:2119
gavl_video_options_set_quality
GAVL_PUBLIC void gavl_video_options_set_quality(gavl_video_options_t *opt, int quality)
Set the quality level for the converter.
GAVL_RESAMPLE_LINEAR
Definition: gavl.h:799
gavl_audio_samples_t::s_8
int8_t * s_8
Definition: gavl.h:465
gavl_audio_converter_set_resample_ratio
GAVL_PUBLIC int gavl_audio_converter_set_resample_ratio(gavl_audio_converter_t *cnv, double ratio)
Set samplerate converstion ratio.
gavl_color_channel_t
gavl_color_channel_t
Color channel definitions.
Definition: gavl.h:1852
gavl_frame_table_frame_to_timecode
GAVL_PUBLIC gavl_timecode_t gavl_frame_table_frame_to_timecode(const gavl_frame_table_t *t, int64_t frame, int64_t *start_time, const gavl_timecode_format_t *fmt)
Convert a frame index to a timecode.
gavl_audio_options_get_resample_mode
GAVL_PUBLIC gavl_resample_mode_t gavl_audio_options_get_resample_mode(gavl_audio_options_t *opt)
Get the resample mode for the converter.
gavl_audio_format_t::num_channels
int num_channels
Definition: gavl.h:264
GAVL_CHID_FRONT_RIGHT
Definition: gavl.h:240
GAVL_CCH_Y
Luminance (also grayscale)
Definition: gavl.h:1857
GAVL_UYVY
Definition: gavl.h:1756
gavl_frame_table_t::num_timecodes
int num_timecodes
Number of timecodes.
Definition: gavl.h:3754
GAVL_FRAMERATE_STILL
Definition: gavl.h:2074
gavl_frame_table_create_audio
GAVL_PUBLIC gavl_frame_table_t * gavl_frame_table_create_audio(int samplerate, int64_t offset, int64_t duration, gavl_timecode_format_t *fmt_ret)
Create a frame table for an audio stream.
gavl_overlay_t::dst_x
int dst_x
x offset in the destination frame. */
Definition: gavl.h:3531
gavl_video_options_set_scale_order
GAVL_PUBLIC void gavl_video_options_set_scale_order(gavl_video_options_t *opt, int order)
Set the scale order for GAVL_SCALE_SINC_LANCZOS.
gavl_video_options_get_alpha_mode
GAVL_PUBLIC gavl_alpha_mode_t gavl_video_options_get_alpha_mode(gavl_video_options_t *opt)
Get the alpha mode.
gavl_video_options_get_stop_func
GAVL_PUBLIC gavl_video_stop_func gavl_video_options_get_stop_func(gavl_video_options_t *opt, void **client_data)
Get function to be passed to each thread.
GAVL_INTERLACE_MIXED
Definition: gavl.h:2098
gavl_video_options_set_stop_func
GAVL_PUBLIC void gavl_video_options_set_stop_func(gavl_video_options_t *opt, gavl_video_stop_func func, void *client_data)
Set function to be passed to each thread.
GAVL_INTERLACE_MIXED_TOP
Definition: gavl.h:2099
GAVL_YUVJ_420_P
Definition: gavl.h:1790
GAVL_SAMPLE_NONE
Definition: gavl.h:206
gavl_audio_frames_equal
GAVL_PUBLIC int gavl_audio_frames_equal(const gavl_audio_format_t *format, const gavl_audio_frame_t *f1, const gavl_audio_frame_t *f2)
Check if 2 audio frames are bit-identical.
GAVL_INTERLEAVE_NONE
Definition: gavl.h:223
gavl_peak_detector_get_peak
GAVL_PUBLIC void gavl_peak_detector_get_peak(gavl_peak_detector_t *pd, double *min, double *max, double *abs)
Get the peak volume across all channels.
gavl_rectangle_f_t::w
double w
Definition: gavl.h:1343
gavl_video_frame_t::timestamp
int64_t timestamp
Definition: gavl.h:2290
gavl_audio_converter_resample
GAVL_PUBLIC void gavl_audio_converter_resample(gavl_audio_converter_t *cnv, gavl_audio_frame_t *input_frame, gavl_audio_frame_t *output_frame, double ratio)
Convert audio.
gavl_peak_detector_set_format
GAVL_PUBLIC void gavl_peak_detector_set_format(gavl_peak_detector_t *pd, const gavl_audio_format_t *format)
Set format for a peak detector.
gavl_video_options_destroy
GAVL_PUBLIC void gavl_video_options_destroy(gavl_video_options_t *opt)
Destroy video options.
gavl_video_options_set_conversion_flags
GAVL_PUBLIC void gavl_video_options_set_conversion_flags(gavl_video_options_t *opt, int conversion_flags)
Set the conversion flags.