FFmpeg
•All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
nut.c
Go to the documentation of this file.
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 
28 const AVCodecTag ff_nut_subtitle_tags[] = {
29  { AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
30  { AV_CODEC_ID_SSA, MKTAG('S', 'S', 'A', 0 ) },
31  { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') },
32  { AV_CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') },
33  { AV_CODEC_ID_DVB_TELETEXT, MKTAG('D', 'V', 'B', 'T') },
34  { AV_CODEC_ID_NONE, 0 }
35 };
36 
37 const AVCodecTag ff_nut_data_tags[] = {
38  { AV_CODEC_ID_TEXT, MKTAG('U', 'T', 'F', '8') },
39  { AV_CODEC_ID_NONE, 0 }
40 };
41 
42 const AVCodecTag ff_nut_video_tags[] = {
43  { AV_CODEC_ID_XFACE, MKTAG('X', 'F', 'A', 'C') },
44  { AV_CODEC_ID_VP9, MKTAG('V', 'P', '9', '0') },
45  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) },
46  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) },
47  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) },
48  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) },
49  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') },
50  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') },
51  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') },
52  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') },
53  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) },
54  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) },
55  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') },
56  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') },
57  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
58  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 0 ) },
59  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
60  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 0 ) },
61  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
62  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'B', 'G', 'R') },
63  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },
64  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'R', 'G', 'B') },
65  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) },
66  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) },
67  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },
68  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
69  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
70  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
71  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
72  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
73  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
74  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },
75  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },
76  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) },
77  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) },
78  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) },
79  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) },
80  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
81  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
82  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) },
83  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },
84  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') },
85  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },
86  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'B', 'A', 64 ) },
87  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'R', 'A', 64 ) },
88  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'R', 'B', 'A') },
89  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'B', 'R', 'A') },
90  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 10 ) },
91  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '3', 'Y') },
92  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 10 ) },
93  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '3', 'Y') },
94  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 10 ) },
95  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 0 , '3', 'Y') },
96  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 12 ) },
97  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 11 , '3', 'Y') },
98  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 12 ) },
99  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 10 , '3', 'Y') },
100  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 12 ) },
101  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 0 , '3', 'Y') },
102  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 14 ) },
103  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 11 , '3', 'Y') },
104  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 14 ) },
105  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 10 , '3', 'Y') },
106  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 14 ) },
107  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 0 , '3', 'Y') },
108  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) },
109  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') },
110  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) },
111  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') },
112  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) },
113  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') },
114  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) },
115  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') },
116  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) },
117  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 , 8 ) },
118  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0 , 8 ) },
119  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) },
120 
121  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 9) },
122  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '1', 'Y') },
123  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 9) },
124  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 11, '4', 'Y') },
125  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 9) },
126  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 10, '4', 'Y') },
127  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 9) },
128  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '4', 'Y') },
129 
130  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 10) },
131  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '1', 'Y') },
132  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 10) },
133  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 11, '4', 'Y') },
134  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 10) },
135  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 10, '4', 'Y') },
136  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 10) },
137  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '4', 'Y') },
138 
139  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 16) },
140  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '1', 'Y') },
141  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 16) },
142  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 11, '4', 'Y') },
143  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 16) },
144  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 10, '4', 'Y') },
145  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 16) },
146  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '4', 'Y') },
147 
148  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 8) },
149 
150  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 9) },
151  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9, 0, '3', 'G') },
152  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 10) },
153  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '3', 'G') },
154  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 12) },
155  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 0, '3', 'G') },
156  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 14) },
157  { AV_CODEC_ID_RAWVIDEO, MKTAG(14, 0, '3', 'G') },
158  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 16) },
159  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '3', 'G') },
160 
161  { AV_CODEC_ID_RAWVIDEO, MKTAG('X', 'Y', 'Z' , 36 ) },
162  { AV_CODEC_ID_RAWVIDEO, MKTAG(36 , 'Z' , 'Y', 'X') },
163 
164  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 8 ) },
165  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 16 ) },
166  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'G', 'B', 0xBA) },
167  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 8 ) },
168  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 16 ) },
169  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'G', 'R', 0xBA) },
170  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 8 ) },
171  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 16 ) },
172  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'B', 'G', 0xBA) },
173  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 8 ) },
174  { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 16 ) },
175  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 'R', 'G', 0xBA) },
176 
177  { AV_CODEC_ID_NONE, 0 }
178 };
179 
180 const AVCodecTag ff_nut_audio_extra_tags[] = {
181  { AV_CODEC_ID_COMFORT_NOISE, MKTAG('3', '3', '8', '9') },
182  { AV_CODEC_ID_PCM_ALAW, MKTAG('A', 'L', 'A', 'W') },
183  { AV_CODEC_ID_PCM_MULAW, MKTAG('U', 'L', 'A', 'W') },
184  { AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
185  { AV_CODEC_ID_NONE, 0 }
186 };
187 
188 const AVCodecTag ff_nut_audio_tags[] = {
189  { AV_CODEC_ID_PCM_F32BE, MKTAG(32 , 'D', 'F', 'P') },
190  { AV_CODEC_ID_PCM_F32LE, MKTAG('P', 'F', 'D', 32 ) },
191  { AV_CODEC_ID_PCM_F64BE, MKTAG(64 , 'D', 'F', 'P') },
192  { AV_CODEC_ID_PCM_F64LE, MKTAG('P', 'F', 'D', 64 ) },
193  { AV_CODEC_ID_PCM_S16BE, MKTAG(16 , 'D', 'S', 'P') },
194  { AV_CODEC_ID_PCM_S16LE, MKTAG('P', 'S', 'D', 16 ) },
195  { AV_CODEC_ID_PCM_S24BE, MKTAG(24 , 'D', 'S', 'P') },
196  { AV_CODEC_ID_PCM_S24LE, MKTAG('P', 'S', 'D', 24 ) },
197  { AV_CODEC_ID_PCM_S32BE, MKTAG(32 , 'D', 'S', 'P') },
198  { AV_CODEC_ID_PCM_S32LE, MKTAG('P', 'S', 'D', 32 ) },
199  { AV_CODEC_ID_PCM_S8, MKTAG('P', 'S', 'D', 8 ) },
200  { AV_CODEC_ID_PCM_U16BE, MKTAG(16 , 'D', 'U', 'P') },
201  { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'U', 'D', 16 ) },
202  { AV_CODEC_ID_PCM_U24BE, MKTAG(24 , 'D', 'U', 'P') },
203  { AV_CODEC_ID_PCM_U24LE, MKTAG('P', 'U', 'D', 24 ) },
204  { AV_CODEC_ID_PCM_U32BE, MKTAG(32 , 'D', 'U', 'P') },
205  { AV_CODEC_ID_PCM_U32LE, MKTAG('P', 'U', 'D', 32 ) },
206  { AV_CODEC_ID_PCM_U8, MKTAG('P', 'U', 'D', 8 ) },
207  { AV_CODEC_ID_PCM_S8_PLANAR, MKTAG('P', 'S', 'P', 8 ) },
208  { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
209  { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
210  { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
211  { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
212  { AV_CODEC_ID_NONE, 0 }
213 };
214 
215 const AVCodecTag * const ff_nut_codec_tags[] = {
216  ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
217  ff_codec_bmp_tags, ff_codec_wav_tags, ff_nut_audio_extra_tags, ff_nut_data_tags, 0
218 };
219 
220 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
221 {
222  int i;
223  for (i = 0; i < nut->avf->nb_streams; i++)
224  nut->stream[i].last_pts =
225  av_rescale_rnd(val,
226  time_base.num * (int64_t)nut->stream[i].time_base->den,
227  time_base.den * (int64_t)nut->stream[i].time_base->num,
228  AV_ROUND_DOWN);
229 }
230 
231 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
232 {
233  int64_t mask = (1ULL << stream->msb_pts_shift) - 1;
234  int64_t delta = stream->last_pts - mask / 2;
235  return ((lsb - delta) & mask) + delta;
236 }
237 
238 int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b)
239 {
240  return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);
241 }
242 
243 int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b)
244 {
245  return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);
246 }
247 
248 int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
249 {
250  Syncpoint *sp = av_mallocz(sizeof(Syncpoint));
251  struct AVTreeNode *node = av_tree_node_alloc();
252 
253  if (!sp || !node) {
254  av_freep(&sp);
255  av_freep(&node);
256  return AVERROR(ENOMEM);
257  }
258 
259  nut->sp_count++;
260 
261  sp->pos = pos;
262  sp->back_ptr = back_ptr;
263  sp->ts = ts;
264  av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);
265  if (node) {
266  av_free(sp);
267  av_free(node);
268  }
269 
270  return 0;
271 }
272 
273 static int enu_free(void *opaque, void *elem)
274 {
275  av_free(elem);
276  return 0;
277 }
278 
279 void ff_nut_free_sp(NUTContext *nut)
280 {
281  av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
282  av_tree_destroy(nut->syncpoints);
283 }
284 
285 const Dispositions ff_nut_dispositions[] = {
286  { "default", AV_DISPOSITION_DEFAULT },
287  { "dub", AV_DISPOSITION_DUB },
288  { "original", AV_DISPOSITION_ORIGINAL },
289  { "comment", AV_DISPOSITION_COMMENT },
290  { "lyrics", AV_DISPOSITION_LYRICS },
291  { "karaoke", AV_DISPOSITION_KARAOKE },
292  { "", 0 }
293 };
294 
295 const AVMetadataConv ff_nut_metadata_conv[] = {
296  { "Author", "artist" },
297  { "X-CreationTime", "date" },
298  { "CreationTime", "date" },
299  { "SourceFilename", "filename" },
300  { "X-Language", "language" },
301  { "X-Disposition", "disposition" },
302  { "X-Replaces", "replaces" },
303  { "X-Depends", "depends" },
304  { "X-Uses", "uses" },
305  { "X-UsesFont", "usesfont" },
306  { 0 },
307 };
Generated on Fri Dec 5 2014 04:42:13 for FFmpeg by   doxygen 1.8.2