FFmpeg: libavformat/nut.c Source File

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 
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_NONE , 0 }
148 };
149 
150  static const AVCodecTag nut_audio_extra_tags[] = {
151  { AV_CODEC_ID_PCM_ALAW, MKTAG('A', 'L', 'A', 'W') },
152  { AV_CODEC_ID_PCM_MULAW, MKTAG('U', 'L', 'A', 'W') },
153  { AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
154  { AV_CODEC_ID_NONE, 0 }
155 };
156 
157  const AVCodecTag ff_nut_audio_tags[] = {
158  { AV_CODEC_ID_PCM_F32BE, MKTAG(32 , 'D', 'F', 'P') },
159  { AV_CODEC_ID_PCM_F32LE, MKTAG('P', 'F', 'D', 32 ) },
160  { AV_CODEC_ID_PCM_F64BE, MKTAG(64 , 'D', 'F', 'P') },
161  { AV_CODEC_ID_PCM_F64LE, MKTAG('P', 'F', 'D', 64 ) },
162  { AV_CODEC_ID_PCM_S16BE, MKTAG(16 , 'D', 'S', 'P') },
163  { AV_CODEC_ID_PCM_S16LE, MKTAG('P', 'S', 'D', 16 ) },
164  { AV_CODEC_ID_PCM_S24BE, MKTAG(24 , 'D', 'S', 'P') },
165  { AV_CODEC_ID_PCM_S24LE, MKTAG('P', 'S', 'D', 24 ) },
166  { AV_CODEC_ID_PCM_S32BE, MKTAG(32 , 'D', 'S', 'P') },
167  { AV_CODEC_ID_PCM_S32LE, MKTAG('P', 'S', 'D', 32 ) },
168  { AV_CODEC_ID_PCM_S8, MKTAG('P', 'S', 'D', 8 ) },
169  { AV_CODEC_ID_PCM_U16BE, MKTAG(16 , 'D', 'U', 'P') },
170  { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'U', 'D', 16 ) },
171  { AV_CODEC_ID_PCM_U24BE, MKTAG(24 , 'D', 'U', 'P') },
172  { AV_CODEC_ID_PCM_U24LE, MKTAG('P', 'U', 'D', 24 ) },
173  { AV_CODEC_ID_PCM_U32BE, MKTAG(32 , 'D', 'U', 'P') },
174  { AV_CODEC_ID_PCM_U32LE, MKTAG('P', 'U', 'D', 32 ) },
175  { AV_CODEC_ID_PCM_U8, MKTAG('P', 'U', 'D', 8 ) },
176  { AV_CODEC_ID_PCM_S8_PLANAR, MKTAG('P', 'S', 'P', 8 ) },
177  { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
178  { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
179  { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
180  { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
181  { AV_CODEC_ID_NONE, 0 }
182 };
183 
184  const AVCodecTag * const ff_nut_codec_tags[] = {
185  ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
186  ff_codec_bmp_tags, ff_codec_wav_tags, nut_audio_extra_tags, ff_nut_data_tags, 0
187 };
188 
189  void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){
190  int i;
191  for(i=0; i<nut->avf->nb_streams; i++){
192  nut->stream[i].last_pts= av_rescale_rnd(
193  val,
194  time_base.num * (int64_t)nut->stream[i].time_base->den,
195  time_base.den * (int64_t)nut->stream[i].time_base->num,
196  AV_ROUND_DOWN);
197  }
198 }
199 
200  int64_t ff_lsb2full(StreamContext *stream, int64_t lsb){
201  int64_t mask = (1ULL<<stream->msb_pts_shift)-1;
202  int64_t delta= stream->last_pts - mask/2;
203  return ((lsb - delta)&mask) + delta;
204 }
205 
206  int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b){
207  return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);
208 }
209 
210  int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b){
211  return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);
212 }
213 
214  void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){
215  Syncpoint *sp= av_mallocz(sizeof(Syncpoint));
216  struct AVTreeNode *node = av_tree_node_alloc();
217 
218  nut->sp_count++;
219 
220  sp->pos= pos;
221  sp->back_ptr= back_ptr;
222  sp->ts= ts;
223  av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);
224  if(node){
225  av_free(sp);
226  av_free(node);
227  }
228 }
229 
230  static int enu_free(void *opaque, void *elem)
231 {
232  av_free(elem);
233  return 0;
234 }
235 
236  void ff_nut_free_sp(NUTContext *nut)
237 {
238  av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
239  av_tree_destroy(nut->syncpoints);
240 }
241 
242  const Dispositions ff_nut_dispositions[] = {
243  {"default" , AV_DISPOSITION_DEFAULT},
244  {"dub" , AV_DISPOSITION_DUB},
245  {"original" , AV_DISPOSITION_ORIGINAL},
246  {"comment" , AV_DISPOSITION_COMMENT},
247  {"lyrics" , AV_DISPOSITION_LYRICS},
248  {"karaoke" , AV_DISPOSITION_KARAOKE},
249  {"" , 0}
250 };
251 
252  const AVMetadataConv ff_nut_metadata_conv[] = {
253  { "Author", "artist" },
254  { "X-CreationTime", "date" },
255  { "CreationTime", "date" },
256  { "SourceFilename", "filename" },
257  { "X-Language", "language" },
258  { "X-Disposition", "disposition" },
259  { "X-Replaces", "replaces" },
260  { "X-Depends", "depends" },
261  { "X-Uses", "uses" },
262  { "X-UsesFont", "usesfont" },
263  { 0 },
264 };
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