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_VP9, MKTAG('V', 'P', '9', '0') },
44  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) },
45  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) },
46  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) },
47  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) },
48  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') },
49  { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') },
50  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') },
51  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') },
52  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) },
53  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) },
54  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') },
55  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') },
56  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
57  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 0 ) },
58  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
59  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 0 ) },
60  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
61  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'B', 'G', 'R') },
62  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },
63  { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'R', 'G', 'B') },
64  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) },
65  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) },
66  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },
67  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
68  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
69  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
70  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
71  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
72  { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
73  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },
74  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },
75  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) },
76  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) },
77  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) },
78  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) },
79  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
80  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
81  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) },
82  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },
83  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') },
84  { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },
85  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'R', 'A', 64 ) },
86  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'B', 'A', 64 ) },
87  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'B', 'R', 'A') },
88  { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'R', 'B', 'A') },
89  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 10 ) },
90  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '3', 'Y') },
91  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 10 ) },
92  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '3', 'Y') },
93  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 10 ) },
94  { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 0 , '3', 'Y') },
95  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 12 ) },
96  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 11 , '3', 'Y') },
97  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 12 ) },
98  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 10 , '3', 'Y') },
99  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 12 ) },
100  { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 0 , '3', 'Y') },
101  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 14 ) },
102  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 11 , '3', 'Y') },
103  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 14 ) },
104  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 10 , '3', 'Y') },
105  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 14 ) },
106  { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 0 , '3', 'Y') },
107  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) },
108  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') },
109  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) },
110  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') },
111  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) },
112  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') },
113  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) },
114  { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') },
115  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) },
116  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 , 8 ) },
117  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0 , 8 ) },
118  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) },
119 
120  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 9) },
121  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '1', 'Y') },
122  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 9) },
123  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 11, '4', 'Y') },
124  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 9) },
125  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 10, '4', 'Y') },
126  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 9) },
127  { AV_CODEC_ID_RAWVIDEO, MKTAG(9, 0, '4', 'Y') },
128 
129  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 10) },
130  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '1', 'Y') },
131  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 10) },
132  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 11, '4', 'Y') },
133  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 10) },
134  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 10, '4', 'Y') },
135  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 10) },
136  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '4', 'Y') },
137 
138  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0, 16) },
139  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '1', 'Y') },
140  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11, 16) },
141  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 11, '4', 'Y') },
142  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10, 16) },
143  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 10, '4', 'Y') },
144  { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 0, 16) },
145  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '4', 'Y') },
146 
147  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 8) },
148 
149  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 9) },
150  { AV_CODEC_ID_RAWVIDEO, MKTAG( 9, 0, '3', 'G') },
151  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 10) },
152  { AV_CODEC_ID_RAWVIDEO, MKTAG(10, 0, '3', 'G') },
153  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 12) },
154  { AV_CODEC_ID_RAWVIDEO, MKTAG(12, 0, '3', 'G') },
155  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 14) },
156  { AV_CODEC_ID_RAWVIDEO, MKTAG(14, 0, '3', 'G') },
157  { AV_CODEC_ID_RAWVIDEO, MKTAG('G', '3', 0, 16) },
158  { AV_CODEC_ID_RAWVIDEO, MKTAG(16, 0, '3', 'G') },
159 
160  { AV_CODEC_ID_NONE, 0 }
161 };
162 
163 static const AVCodecTag nut_audio_extra_tags[] = {
164  { AV_CODEC_ID_PCM_ALAW, MKTAG('A', 'L', 'A', 'W') },
165  { AV_CODEC_ID_PCM_MULAW, MKTAG('U', 'L', 'A', 'W') },
166  { AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
167  { AV_CODEC_ID_NONE, 0 }
168 };
169 
170 const AVCodecTag ff_nut_audio_tags[] = {
171  { AV_CODEC_ID_PCM_F32BE, MKTAG(32 , 'D', 'F', 'P') },
172  { AV_CODEC_ID_PCM_F32LE, MKTAG('P', 'F', 'D', 32 ) },
173  { AV_CODEC_ID_PCM_F64BE, MKTAG(64 , 'D', 'F', 'P') },
174  { AV_CODEC_ID_PCM_F64LE, MKTAG('P', 'F', 'D', 64 ) },
175  { AV_CODEC_ID_PCM_S16BE, MKTAG(16 , 'D', 'S', 'P') },
176  { AV_CODEC_ID_PCM_S16LE, MKTAG('P', 'S', 'D', 16 ) },
177  { AV_CODEC_ID_PCM_S24BE, MKTAG(24 , 'D', 'S', 'P') },
178  { AV_CODEC_ID_PCM_S24LE, MKTAG('P', 'S', 'D', 24 ) },
179  { AV_CODEC_ID_PCM_S32BE, MKTAG(32 , 'D', 'S', 'P') },
180  { AV_CODEC_ID_PCM_S32LE, MKTAG('P', 'S', 'D', 32 ) },
181  { AV_CODEC_ID_PCM_S8, MKTAG('P', 'S', 'D', 8 ) },
182  { AV_CODEC_ID_PCM_U16BE, MKTAG(16 , 'D', 'U', 'P') },
183  { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'U', 'D', 16 ) },
184  { AV_CODEC_ID_PCM_U24BE, MKTAG(24 , 'D', 'U', 'P') },
185  { AV_CODEC_ID_PCM_U24LE, MKTAG('P', 'U', 'D', 24 ) },
186  { AV_CODEC_ID_PCM_U32BE, MKTAG(32 , 'D', 'U', 'P') },
187  { AV_CODEC_ID_PCM_U32LE, MKTAG('P', 'U', 'D', 32 ) },
188  { AV_CODEC_ID_PCM_U8, MKTAG('P', 'U', 'D', 8 ) },
189  { AV_CODEC_ID_PCM_S8_PLANAR, MKTAG('P', 'S', 'P', 8 ) },
190  { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
191  { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
192  { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
193  { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
194  { AV_CODEC_ID_NONE, 0 }
195 };
196 
197 const AVCodecTag * const ff_nut_codec_tags[] = {
198  ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
199  ff_codec_bmp_tags, ff_codec_wav_tags, nut_audio_extra_tags, ff_nut_data_tags, 0
200 };
201 
202 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
203 {
204  int i;
205  for (i = 0; i < nut->avf->nb_streams; i++)
206  nut->stream[i].last_pts =
207  av_rescale_rnd(val,
208  time_base.num * (int64_t)nut->stream[i].time_base->den,
209  time_base.den * (int64_t)nut->stream[i].time_base->num,
210  AV_ROUND_DOWN);
211 }
212 
213 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
214 {
215  int64_t mask = (1ULL << stream->msb_pts_shift) - 1;
216  int64_t delta = stream->last_pts - mask / 2;
217  return ((lsb - delta) & mask) + delta;
218 }
219 
220 int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b)
221 {
222  return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);
223 }
224 
225 int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b)
226 {
227  return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);
228 }
229 
230 int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
231 {
232  Syncpoint *sp = av_mallocz(sizeof(Syncpoint));
233  struct AVTreeNode *node = av_tree_node_alloc();
234 
235  if (!sp || !node) {
236  av_freep(&sp);
237  av_freep(&node);
238  return AVERROR(ENOMEM);
239  }
240 
241  nut->sp_count++;
242 
243  sp->pos = pos;
244  sp->back_ptr = back_ptr;
245  sp->ts = ts;
246  av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);
247  if (node) {
248  av_free(sp);
249  av_free(node);
250  }
251 
252  return 0;
253 }
254 
255 static int enu_free(void *opaque, void *elem)
256 {
257  av_free(elem);
258  return 0;
259 }
260 
261 void ff_nut_free_sp(NUTContext *nut)
262 {
263  av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
264  av_tree_destroy(nut->syncpoints);
265 }
266 
267 const Dispositions ff_nut_dispositions[] = {
268  { "default", AV_DISPOSITION_DEFAULT },
269  { "dub", AV_DISPOSITION_DUB },
270  { "original", AV_DISPOSITION_ORIGINAL },
271  { "comment", AV_DISPOSITION_COMMENT },
272  { "lyrics", AV_DISPOSITION_LYRICS },
273  { "karaoke", AV_DISPOSITION_KARAOKE },
274  { "", 0 }
275 };
276 
277 const AVMetadataConv ff_nut_metadata_conv[] = {
278  { "Author", "artist" },
279  { "X-CreationTime", "date" },
280  { "CreationTime", "date" },
281  { "SourceFilename", "filename" },
282  { "X-Language", "language" },
283  { "X-Disposition", "disposition" },
284  { "X-Replaces", "replaces" },
285  { "X-Depends", "depends" },
286  { "X-Uses", "uses" },
287  { "X-UsesFont", "usesfont" },
288  { 0 },
289 };
Generated on Sat Jan 25 2014 19:52:04 for FFmpeg by   doxygen 1.8.2