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libavformat
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 Libav.
6
*
7
* Libav 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
* Libav 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 Libav; 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_NONE
, 0 }
34
};
35
36
const
AVCodecTag
ff_nut_data_tags
[] = {
37
{
AV_CODEC_ID_TEXT
,
MKTAG
(
'U'
,
'T'
,
'F'
,
'8'
) },
38
{
AV_CODEC_ID_NONE
, 0 }
39
};
40
41
const
AVCodecTag
ff_nut_video_tags
[] = {
42
{
AV_CODEC_ID_VP9
,
MKTAG
(
'V'
,
'P'
,
'9'
,
'0'
) },
43
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 15) },
44
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 15) },
45
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 16) },
46
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 16) },
47
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(15,
'B'
,
'G'
,
'R'
) },
48
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(15,
'R'
,
'G'
,
'B'
) },
49
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16,
'B'
,
'G'
,
'R'
) },
50
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16,
'R'
,
'G'
,
'B'
) },
51
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 12) },
52
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 12) },
53
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(12,
'B'
,
'G'
,
'R'
) },
54
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(12,
'R'
,
'G'
,
'B'
) },
55
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
,
'A'
) },
56
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
,
'A'
) },
57
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'A'
,
'B'
,
'G'
,
'R'
) },
58
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'A'
,
'R'
,
'G'
,
'B'
) },
59
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 24) },
60
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 24) },
61
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'1'
,
'1'
,
'P'
) },
62
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'2'
,
'2'
,
'P'
) },
63
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'2'
,
'2'
,
'P'
) },
64
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'0'
,
'P'
) },
65
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'0'
,
'P'
) },
66
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'4'
,
'P'
) },
67
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'4'
,
'P'
) },
68
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'1'
,
'W'
,
'0'
) },
69
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'0'
,
'W'
,
'1'
) },
70
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 8) },
71
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 8) },
72
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 4) },
73
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 4) },
74
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'4'
,
'B'
,
'Y'
) },
75
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'4'
,
'B'
,
'Y'
) },
76
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 48) },
77
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 48) },
78
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(48,
'B'
,
'G'
,
'R'
) },
79
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(48,
'R'
,
'G'
,
'B'
) },
80
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 11, 10) },
81
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 11,
'3'
,
'Y'
) },
82
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 10, 10) },
83
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 10,
'3'
,
'Y'
) },
84
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 0, 10) },
85
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 0,
'3'
,
'Y'
) },
86
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0, 16) },
87
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 0,
'1'
,
'Y'
) },
88
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 11, 16) },
89
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 11,
'3'
,
'Y'
) },
90
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 10, 16) },
91
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 10,
'3'
,
'Y'
) },
92
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 0, 16) },
93
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 0,
'3'
,
'Y'
) },
94
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11, 8) },
95
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'2'
, 0, 8) },
96
97
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0, 9) },
98
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(9, 0,
'1'
,
'Y'
) },
99
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11, 9) },
100
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(9, 11,
'4'
,
'Y'
) },
101
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10, 9) },
102
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(9, 10,
'4'
,
'Y'
) },
103
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0, 9) },
104
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(9, 0,
'4'
,
'Y'
) },
105
106
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0, 10) },
107
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 0,
'1'
,
'Y'
) },
108
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11, 10) },
109
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 11,
'4'
,
'Y'
) },
110
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10, 10) },
111
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 10,
'4'
,
'Y'
) },
112
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0, 10) },
113
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10, 0,
'4'
,
'Y'
) },
114
115
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0, 16) },
116
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 0,
'1'
,
'Y'
) },
117
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11, 16) },
118
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 11,
'4'
,
'Y'
) },
119
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10, 16) },
120
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 10,
'4'
,
'Y'
) },
121
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0, 16) },
122
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16, 0,
'4'
,
'Y'
) },
123
124
{
AV_CODEC_ID_NONE
, 0 }
125
};
126
127
const
AVCodecTag
ff_nut_audio_tags
[] = {
128
{
AV_CODEC_ID_PCM_ALAW
,
MKTAG
(
'A'
,
'L'
,
'A'
,
'W'
) },
129
{
AV_CODEC_ID_PCM_MULAW
,
MKTAG
(
'U'
,
'L'
,
'A'
,
'W'
) },
130
{
AV_CODEC_ID_PCM_F32BE
,
MKTAG
(32,
'D'
,
'F'
,
'P'
) },
131
{
AV_CODEC_ID_PCM_F32LE
,
MKTAG
(
'P'
,
'F'
,
'D'
, 32) },
132
{
AV_CODEC_ID_PCM_F64BE
,
MKTAG
(64,
'D'
,
'F'
,
'P'
) },
133
{
AV_CODEC_ID_PCM_F64LE
,
MKTAG
(
'P'
,
'F'
,
'D'
, 64) },
134
{
AV_CODEC_ID_PCM_S16BE
,
MKTAG
(16,
'D'
,
'S'
,
'P'
) },
135
{
AV_CODEC_ID_PCM_S16LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 16) },
136
{
AV_CODEC_ID_PCM_S24BE
,
MKTAG
(24,
'D'
,
'S'
,
'P'
) },
137
{
AV_CODEC_ID_PCM_S24LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 24) },
138
{
AV_CODEC_ID_PCM_S32BE
,
MKTAG
(32,
'D'
,
'S'
,
'P'
) },
139
{
AV_CODEC_ID_PCM_S32LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 32) },
140
{
AV_CODEC_ID_PCM_S8
,
MKTAG
(
'P'
,
'S'
,
'D'
, 8) },
141
{
AV_CODEC_ID_PCM_U16BE
,
MKTAG
(16,
'D'
,
'U'
,
'P'
) },
142
{
AV_CODEC_ID_PCM_U16LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 16) },
143
{
AV_CODEC_ID_PCM_U24BE
,
MKTAG
(24,
'D'
,
'U'
,
'P'
) },
144
{
AV_CODEC_ID_PCM_U24LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 24) },
145
{
AV_CODEC_ID_PCM_U32BE
,
MKTAG
(32,
'D'
,
'U'
,
'P'
) },
146
{
AV_CODEC_ID_PCM_U32LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 32) },
147
{
AV_CODEC_ID_PCM_U8
,
MKTAG
(
'P'
,
'U'
,
'D'
, 8) },
148
{
AV_CODEC_ID_PCM_S16LE_PLANAR
,
MKTAG
(
'P'
,
'S'
,
'P'
, 16) },
149
{
AV_CODEC_ID_PCM_S24LE_PLANAR
,
MKTAG
(
'P'
,
'S'
,
'P'
, 24) },
150
{
AV_CODEC_ID_PCM_S32LE_PLANAR
,
MKTAG
(
'P'
,
'S'
,
'P'
, 32) },
151
{
AV_CODEC_ID_MP3
,
MKTAG
(
'M'
,
'P'
,
'3'
,
' '
) },
152
{
AV_CODEC_ID_NONE
, 0 }
153
};
154
155
const
AVCodecTag
*
const
ff_nut_codec_tags
[] = {
156
ff_nut_video_tags
,
ff_nut_audio_tags
,
ff_nut_subtitle_tags
,
157
ff_codec_bmp_tags
,
ff_codec_wav_tags
,
ff_nut_data_tags
, 0
158
};
159
160
void
ff_nut_reset_ts
(
NUTContext
*nut,
AVRational
time_base, int64_t val)
161
{
162
int
i;
163
for
(i = 0; i < nut->
avf
->
nb_streams
; i++)
164
nut->
stream
[i].
last_pts
=
165
av_rescale_rnd
(val,
166
time_base.
num
* (int64_t)nut->
stream
[i].
time_base
->
den
,
167
time_base.
den
* (int64_t)nut->
stream
[i].
time_base
->
num
,
168
AV_ROUND_DOWN
);
169
}
170
171
int64_t
ff_lsb2full
(
StreamContext
*stream, int64_t lsb)
172
{
173
int64_t
mask
= (1 << stream->
msb_pts_shift
) - 1;
174
int64_t
delta
= stream->
last_pts
- mask / 2;
175
return
((lsb - delta) &
mask
) + delta;
176
}
177
178
int
ff_nut_sp_pos_cmp
(
const
Syncpoint
*a,
const
Syncpoint
*
b
)
179
{
180
return
((a->
pos
- b->
pos
) >> 32) - ((b->
pos
- a->
pos
) >> 32);
181
}
182
183
int
ff_nut_sp_pts_cmp
(
const
Syncpoint
*a,
const
Syncpoint
*
b
)
184
{
185
return
((a->
ts
- b->
ts
) >> 32) - ((b->
ts
- a->
ts
) >> 32);
186
}
187
188
int
ff_nut_add_sp
(
NUTContext
*nut, int64_t pos, int64_t back_ptr, int64_t ts)
189
{
190
Syncpoint
*sp =
av_mallocz
(
sizeof
(
Syncpoint
));
191
struct
AVTreeNode
*node =
av_tree_node_alloc
();
192
193
if
(!sp || !node) {
194
av_freep
(&sp);
195
av_freep
(&node);
196
return
AVERROR
(ENOMEM);
197
}
198
199
sp->
pos
= pos;
200
sp->
back_ptr
= back_ptr;
201
sp->
ts
= ts;
202
av_tree_insert
(&nut->
syncpoints
, sp, (
void
*)
ff_nut_sp_pos_cmp
, &node);
203
if
(node) {
204
av_free
(sp);
205
av_free
(node);
206
}
207
208
return
0;
209
}
210
211
static
int
enu_free
(
void
*opaque,
void
*
elem
)
212
{
213
av_free
(elem);
214
return
0;
215
}
216
217
void
ff_nut_free_sp
(
NUTContext
*nut)
218
{
219
av_tree_enumerate
(nut->
syncpoints
,
NULL
,
NULL
,
enu_free
);
220
av_tree_destroy
(nut->
syncpoints
);
221
}
222
223
const
Dispositions
ff_nut_dispositions
[] = {
224
{
"default"
,
AV_DISPOSITION_DEFAULT
},
225
{
"dub"
,
AV_DISPOSITION_DUB
},
226
{
"original"
,
AV_DISPOSITION_ORIGINAL
},
227
{
"comment"
,
AV_DISPOSITION_COMMENT
},
228
{
"lyrics"
,
AV_DISPOSITION_LYRICS
},
229
{
"karaoke"
,
AV_DISPOSITION_KARAOKE
},
230
{
""
, 0 }
231
};
232
233
const
AVMetadataConv
ff_nut_metadata_conv
[] = {
234
{
"Author"
,
"artist"
},
235
{
"X-CreationTime"
,
"date"
},
236
{
"CreationTime"
,
"date"
},
237
{
"SourceFilename"
,
"filename"
},
238
{
"X-Language"
,
"language"
},
239
{
"X-Disposition"
,
"disposition"
},
240
{
"X-Replaces"
,
"replaces"
},
241
{
"X-Depends"
,
"depends"
},
242
{
"X-Uses"
,
"uses"
},
243
{
"X-UsesFont"
,
"usesfont"
},
244
{ 0 },
245
};
Generated on Sun Jun 1 2014 17:55:36 for Libav by
1.8.1.2