FFmpeg
nut.c
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1 /*
2  * nut
3  * Copyright (c) 2004-2007 Michael Niedermayer
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/mathematics.h"
23 #include "libavutil/tree.h"
24 #include "nut.h"
25 #include "riff.h"
26 #include "internal.h"
27 
29  { AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
30  { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') },
31  { AV_CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') },
32  { AV_CODEC_ID_DVB_TELETEXT, MKTAG('D', 'V', 'B', 'T') },
33  { AV_CODEC_ID_NONE, 0 }
34 };
35 
37  { AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
38  { AV_CODEC_ID_NONE, 0 }
39 };
40 
42  { AV_CODEC_ID_GIF, MKTAG('G', 'I', 'F', 0 ) },
43  { AV_CODEC_ID_XFACE, MKTAG('X', 'F', 'A', 'C') },
44  { AV_CODEC_ID_VP9, MKTAG('V', 'P', '9', '0') },
45  { AV_CODEC_ID_HEVC, MKTAG('H', 'E', 'V', 'C') },
46  { AV_CODEC_ID_CPIA, MKTAG('C', 'P', 'i', 'A') },
47  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) },
48  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) },
49  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) },
50  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) },
51  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') },
52  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') },
53  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') },
54  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') },
55  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) },
56  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) },
57  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') },
58  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') },
59  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
60  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 0 ) },
61  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
62  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 0 ) },
63  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
64  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'B', 'G', 'R') },
65  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },
66  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'R', 'G', 'B') },
67  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) },
68  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) },
69  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },
70  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
71  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
72  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
73  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
74  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
75  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
76  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },
77  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },
78  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) },
79  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) },
80  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) },
81  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) },
82  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
83  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
84  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) },
85  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },
86  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') },
87  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },
88  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'B', 'A', 64 ) },
89  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'R', 'A', 64 ) },
90  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'R', 'B', 'A') },
91  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'B', 'R', 'A') },
92  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 9 ) },
93  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 , 11 , '3', 'Y') },
94  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 9 ) },
95  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 , 10 , '3', 'Y') },
96  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 9 ) },
97  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 , 0 , '3', 'Y') },
98  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 10 ) },
99  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '3', 'Y') },
100  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 10 ) },
101  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '3', 'Y') },
102  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 10 ) },
103  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 0 , '3', 'Y') },
104  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 12 ) },
105  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 11 , '3', 'Y') },
106  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 12 ) },
107  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 10 , '3', 'Y') },
108  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 12 ) },
109  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 0 , '3', 'Y') },
110  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 14 ) },
111  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 11 , '3', 'Y') },
112  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 14 ) },
113  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 10 , '3', 'Y') },
114  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 14 ) },
115  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 0 , '3', 'Y') },
116  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) },
117  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') },
118  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) },
119  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') },
120  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) },
121  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') },
122  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) },
123  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') },
124  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) },
125  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 , 8 ) },
126  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0 , 8 ) },
127  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) },
128 
129  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 9) },
130  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '1', 'Y') },
131  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 9) },
132  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 11, '4', 'Y') },
133  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 9) },
134  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 10, '4', 'Y') },
135  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 9) },
136  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '4', 'Y') },
137 
138  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 10) },
139  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '1', 'Y') },
140  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 10) },
141  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 11, '4', 'Y') },
142  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 10) },
143  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 10, '4', 'Y') },
144  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 10) },
145  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '4', 'Y') },
146 
147  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 12) },
148  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 0, '4', 'Y') },
149  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 12) },
150  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 10, '4', 'Y') },
151 
152  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 12) },
153  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 0, '1', 'Y') },
154  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 16) },
155  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '1', 'Y') },
156  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 16) },
157  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 11, '4', 'Y') },
158  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 16) },
159  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 10, '4', 'Y') },
160  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 16) },
161  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '4', 'Y') },
162 
163  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 14) },
164  { AV_CODEC_ID_RAWVIDEO, MKTAG(14, 0, '1', 'Y') },
165 
166  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 8) },
167 
168  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 9) },
169  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9, 0, '3', 'G') },
170  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 10) },
171  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '3', 'G') },
172  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 12) },
173  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 0, '3', 'G') },
174  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 14) },
175  { AV_CODEC_ID_RAWVIDEO, MKTAG(14, 0, '3', 'G') },
176  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 16) },
177  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '3', 'G') },
178 
179  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '4', 0, 8) },
180 
181  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '4', 00 , 10 ) },
182  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 00 , '4', 'G') },
183  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '4', 00 , 12 ) },
184  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 00 , '4', 'G') },
185  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '4', 00 , 16 ) },
186  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 00 , '4', 'G') },
187 
188  { AV_CODEC_ID_RAWVIDEO, MKTAG('X', 'Y', 'Z' , 36 ) },
189  { AV_CODEC_ID_RAWVIDEO, MKTAG(36 , 'Z' , 'Y', 'X') },
190 
191  { AV_CODEC_ID_RAWVIDEO, MKTAG('P', 'A', 'L', 8 ) },
192 
193  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 8 ) },
194  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 16 ) },
195  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'G', 'B', 0xBA) },
196  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 8 ) },
197  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 16 ) },
198  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'G', 'R', 0xBA) },
199  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 8 ) },
200  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 16 ) },
201  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'B', 'G', 0xBA) },
202  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 8 ) },
203  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 16 ) },
204  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'R', 'G', 0xBA) },
205 
206  { AV_CODEC_ID_NONE, 0 }
207 };
208 
210  { AV_CODEC_ID_COMFORT_NOISE, MKTAG('3', '3', '8', '9') },
211  { AV_CODEC_ID_PCM_ALAW, MKTAG('A', 'L', 'A', 'W') },
212  { AV_CODEC_ID_PCM_MULAW, MKTAG('U', 'L', 'A', 'W') },
213  { AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
214  { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') },
215  { AV_CODEC_ID_WAVPACK, MKTAG('w', 'v', 'p', 'k') },
216  { AV_CODEC_ID_NONE, 0 }
217 };
218 
220  { AV_CODEC_ID_PCM_F32BE, MKTAG(32 , 'D', 'F', 'P') },
221  { AV_CODEC_ID_PCM_F32LE, MKTAG('P', 'F', 'D', 32 ) },
222  { AV_CODEC_ID_PCM_F64BE, MKTAG(64 , 'D', 'F', 'P') },
223  { AV_CODEC_ID_PCM_F64LE, MKTAG('P', 'F', 'D', 64 ) },
224  { AV_CODEC_ID_PCM_S16BE, MKTAG(16 , 'D', 'S', 'P') },
225  { AV_CODEC_ID_PCM_S16LE, MKTAG('P', 'S', 'D', 16 ) },
226  { AV_CODEC_ID_PCM_S24BE, MKTAG(24 , 'D', 'S', 'P') },
227  { AV_CODEC_ID_PCM_S24LE, MKTAG('P', 'S', 'D', 24 ) },
228  { AV_CODEC_ID_PCM_S32BE, MKTAG(32 , 'D', 'S', 'P') },
229  { AV_CODEC_ID_PCM_S32LE, MKTAG('P', 'S', 'D', 32 ) },
230  { AV_CODEC_ID_PCM_S64BE, MKTAG(64 , 'D', 'S', 'P') },
231  { AV_CODEC_ID_PCM_S64LE, MKTAG('P', 'S', 'D', 64 ) },
232  { AV_CODEC_ID_PCM_S8, MKTAG('P', 'S', 'D', 8 ) },
233  { AV_CODEC_ID_PCM_U16BE, MKTAG(16 , 'D', 'U', 'P') },
234  { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'U', 'D', 16 ) },
235  { AV_CODEC_ID_PCM_U24BE, MKTAG(24 , 'D', 'U', 'P') },
236  { AV_CODEC_ID_PCM_U24LE, MKTAG('P', 'U', 'D', 24 ) },
237  { AV_CODEC_ID_PCM_U32BE, MKTAG(32 , 'D', 'U', 'P') },
238  { AV_CODEC_ID_PCM_U32LE, MKTAG('P', 'U', 'D', 32 ) },
239  { AV_CODEC_ID_PCM_U8, MKTAG('P', 'U', 'D', 8 ) },
240  { AV_CODEC_ID_PCM_S8_PLANAR, MKTAG('P', 'S', 'P', 8 ) },
241  { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
242  { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
243  { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
244  { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
245  { AV_CODEC_ID_NONE, 0 }
246 };
247 
248 const AVCodecTag * const ff_nut_codec_tags[] = {
251 };
252 
253 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
254 {
255  int i;
256  for (i = 0; i < nut->avf->nb_streams; i++)
257  nut->stream[i].last_pts =
258  av_rescale_rnd(val,
259  time_base.num * (int64_t)nut->stream[i].time_base->den,
260  time_base.den * (int64_t)nut->stream[i].time_base->num,
261  AV_ROUND_DOWN);
262 }
263 
264 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
265 {
266  int64_t mask = (1ULL << stream->msb_pts_shift) - 1;
267  int64_t delta = stream->last_pts - mask / 2;
268  return ((lsb - delta) & mask) + delta;
269 }
270 
271 int ff_nut_sp_pos_cmp(const void *a, const void *b)
272 {
273  const Syncpoint *va = a, *vb = b;
274  return ((va->pos - vb->pos) >> 32) - ((vb->pos - va->pos) >> 32);
275 }
276 
277 int ff_nut_sp_pts_cmp(const void *a, const void *b)
278 {
279  const Syncpoint *va = a, *vb = b;
280  return ((va->ts - vb->ts) >> 32) - ((vb->ts - va->ts) >> 32);
281 }
282 
283 int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
284 {
285  Syncpoint *sp = av_mallocz(sizeof(Syncpoint));
286  struct AVTreeNode *node = av_tree_node_alloc();
287 
288  if (!sp || !node) {
289  av_freep(&sp);
290  av_freep(&node);
291  return AVERROR(ENOMEM);
292  }
293 
294  nut->sp_count++;
295 
296  sp->pos = pos;
297  sp->back_ptr = back_ptr;
298  sp->ts = ts;
299  av_tree_insert(&nut->syncpoints, sp, ff_nut_sp_pos_cmp, &node);
300  if (node) {
301  av_free(sp);
302  av_free(node);
303  }
304 
305  return 0;
306 }
307 
308 static int enu_free(void *opaque, void *elem)
309 {
310  av_free(elem);
311  return 0;
312 }
313 
315 {
316  if (nut->syncpoints) {
319  }
320 }
321 
323  { "default", AV_DISPOSITION_DEFAULT },
324  { "dub", AV_DISPOSITION_DUB },
325  { "original", AV_DISPOSITION_ORIGINAL },
326  { "comment", AV_DISPOSITION_COMMENT },
327  { "lyrics", AV_DISPOSITION_LYRICS },
328  { "karaoke", AV_DISPOSITION_KARAOKE },
329  { "", 0 }
330 };
331 
333  { "Author", "artist" },
334  { "X-CreationTime", "date" },
335  { "CreationTime", "date" },
336  { "SourceFilename", "filename" },
337  { "X-Language", "language" },
338  { "X-Disposition", "disposition" },
339  { "X-Replaces", "replaces" },
340  { "X-Depends", "depends" },
341  { "X-Uses", "uses" },
342  { "X-UsesFont", "usesfont" },
343  { 0 },
344 };
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:863
const AVCodecTag ff_nut_audio_extra_tags[]
Definition: nut.c:209
int num
Numerator.
Definition: rational.h:59
Definition: nut.h:58
#define AV_DISPOSITION_DUB
Definition: avformat.h:827
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
int64_t ts
Definition: nut.h:62
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
Definition: nut.h:91
int ff_nut_sp_pos_cmp(const void *a, const void *b)
Definition: nut.c:271
#define AV_DISPOSITION_KARAOKE
Definition: avformat.h:831
struct AVTreeNode * av_tree_node_alloc(void)
Allocate an AVTreeNode.
Definition: tree.c:34
float delta
A tree container.
const AVMetadataConv ff_nut_metadata_conv[]
Definition: nut.c:332
int ff_nut_sp_pts_cmp(const void *a, const void *b)
Definition: nut.c:277
#define sp
Definition: regdef.h:63
const AVCodecTag ff_nut_data_tags[]
Definition: nut.c:36
void av_tree_destroy(AVTreeNode *t)
Definition: tree.c:146
AVFormatContext * avf
Definition: nut.h:93
int64_t last_pts
Definition: nut.h:78
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
void ff_nut_free_sp(NUTContext *nut)
Definition: nut.c:314
static const uint16_t mask[17]
Definition: lzw.c:38
uint64_t pos
Definition: nut.h:59
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:566
int sp_count
Definition: nut.h:109
const AVCodecTag ff_nut_audio_tags[]
Definition: nut.c:219
const AVCodecTag ff_codec_wav_tags[]
Definition: riff.c:500
#define AV_DISPOSITION_LYRICS
Definition: avformat.h:830
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1414
#define b
Definition: input.c:41
void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
Definition: nut.c:253
const AVCodecTag ff_codec_bmp_tags[]
Definition: riff.c:32
AVRational time_base
Definition: signature.h:103
int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
Definition: nut.c:264
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
struct AVTreeNode * syncpoints
Definition: nut.h:108
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
Definition: mathematics.c:58
int msb_pts_shift
Definition: nut.h:81
#define AV_DISPOSITION_DEFAULT
Definition: avformat.h:826
const AVCodecTag ff_nut_subtitle_tags[]
Definition: nut.c:28
static int enu_free(void *opaque, void *elem)
Definition: nut.c:308
Rational number (pair of numerator and denominator).
Definition: rational.h:58
StreamContext * stream
Definition: nut.h:100
Round toward -infinity.
Definition: mathematics.h:82
const Dispositions ff_nut_dispositions[]
Definition: nut.c:322
raw UTF-8 text
Definition: avcodec.h:662
const AVCodecTag ff_nut_video_tags[]
Definition: nut.c:41
int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
Definition: nut.c:283
int den
Denominator.
Definition: rational.h:60
#define av_free(p)
void * av_tree_insert(AVTreeNode **tp, void *key, int(*cmp)(const void *key, const void *b), AVTreeNode **next)
Insert or remove an element.
Definition: tree.c:59
#define AV_DISPOSITION_COMMENT
Definition: avformat.h:829
#define av_freep(p)
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
uint64_t back_ptr
Definition: nut.h:60
#define MKTAG(a, b, c, d)
Definition: common.h:366
void av_tree_enumerate(AVTreeNode *t, void *opaque, int(*cmp)(void *opaque, void *elem), int(*enu)(void *opaque, void *elem))
Apply enu(opaque, &elem) to all the elements in the tree in a given range.
Definition: tree.c:155
const AVCodecTag *const ff_nut_codec_tags[]
Definition: nut.c:248
#define AV_DISPOSITION_ORIGINAL
Definition: avformat.h:828
void * elem
Definition: tree.c:28