Main Page
Related Pages
Modules
Data Structures
Files
Examples
File List
Globals
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_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 15 ) },
43
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 15 ) },
44
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 16 ) },
45
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 16 ) },
46
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(15 ,
'B'
,
'G'
,
'R'
) },
47
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(15 ,
'R'
,
'G'
,
'B'
) },
48
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 ,
'B'
,
'G'
,
'R'
) },
49
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 ,
'R'
,
'G'
,
'B'
) },
50
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 12 ) },
51
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 12 ) },
52
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(12 ,
'B'
,
'G'
,
'R'
) },
53
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(12 ,
'R'
,
'G'
,
'B'
) },
54
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
,
'A'
) },
55
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
,
'A'
) },
56
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'A'
,
'B'
,
'G'
,
'R'
) },
57
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'A'
,
'R'
,
'G'
,
'B'
) },
58
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 24 ) },
59
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 24 ) },
60
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'1'
,
'1'
,
'P'
) },
61
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'2'
,
'2'
,
'P'
) },
62
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'2'
,
'2'
,
'P'
) },
63
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'0'
,
'P'
) },
64
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'0'
,
'P'
) },
65
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'4'
,
'P'
) },
66
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'4'
,
'4'
,
'4'
,
'P'
) },
67
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'1'
,
'W'
,
'0'
) },
68
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'0'
,
'W'
,
'1'
) },
69
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 8 ) },
70
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 8 ) },
71
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 4 ) },
72
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 4 ) },
73
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'4'
,
'B'
,
'Y'
) },
74
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'4'
,
'B'
,
'Y'
) },
75
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'B'
,
'G'
,
'R'
, 48 ) },
76
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'R'
,
'G'
,
'B'
, 48 ) },
77
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(48 ,
'B'
,
'G'
,
'R'
) },
78
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(48 ,
'R'
,
'G'
,
'B'
) },
79
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 11 , 10 ) },
80
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 11 ,
'3'
,
'Y'
) },
81
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 10 , 10 ) },
82
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 10 ,
'3'
,
'Y'
) },
83
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 0 , 10 ) },
84
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 0 ,
'3'
,
'Y'
) },
85
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0 , 16 ) },
86
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 0 ,
'1'
,
'Y'
) },
87
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 11 , 16 ) },
88
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 11 ,
'3'
,
'Y'
) },
89
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 10 , 16 ) },
90
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 10 ,
'3'
,
'Y'
) },
91
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'3'
, 0 , 16 ) },
92
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 0 ,
'3'
,
'Y'
) },
93
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11 , 8 ) },
94
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'2'
, 0 , 8 ) },
95
96
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0 , 9 ) },
97
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
( 9 , 0 ,
'1'
,
'Y'
) },
98
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11 , 9 ) },
99
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
( 9 , 11 ,
'4'
,
'Y'
) },
100
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10 , 9 ) },
101
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
( 9 , 10 ,
'4'
,
'Y'
) },
102
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0 , 9 ) },
103
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
( 9 , 0 ,
'4'
,
'Y'
) },
104
105
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0 , 10 ) },
106
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 0 ,
'1'
,
'Y'
) },
107
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11 , 10 ) },
108
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 11 ,
'4'
,
'Y'
) },
109
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10 , 10 ) },
110
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 10 ,
'4'
,
'Y'
) },
111
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0 , 10 ) },
112
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(10 , 0 ,
'4'
,
'Y'
) },
113
114
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'1'
, 0 , 16 ) },
115
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 0 ,
'1'
,
'Y'
) },
116
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 11 , 16 ) },
117
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 11 ,
'4'
,
'Y'
) },
118
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 10 , 16 ) },
119
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 10 ,
'4'
,
'Y'
) },
120
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(
'Y'
,
'4'
, 0 , 16 ) },
121
{
AV_CODEC_ID_RAWVIDEO
,
MKTAG
(16 , 0 ,
'4'
,
'Y'
) },
122
123
{
AV_CODEC_ID_NONE
, 0 }
124
};
125
126
const
AVCodecTag
ff_nut_audio_tags
[] = {
127
{
AV_CODEC_ID_PCM_ALAW
,
MKTAG
(
'A'
,
'L'
,
'A'
,
'W'
) },
128
{
AV_CODEC_ID_PCM_MULAW
,
MKTAG
(
'U'
,
'L'
,
'A'
,
'W'
) },
129
{
AV_CODEC_ID_PCM_F32BE
,
MKTAG
(32 ,
'D'
,
'F'
,
'P'
) },
130
{
AV_CODEC_ID_PCM_F32LE
,
MKTAG
(
'P'
,
'F'
,
'D'
, 32 ) },
131
{
AV_CODEC_ID_PCM_F64BE
,
MKTAG
(64 ,
'D'
,
'F'
,
'P'
) },
132
{
AV_CODEC_ID_PCM_F64LE
,
MKTAG
(
'P'
,
'F'
,
'D'
, 64 ) },
133
{
AV_CODEC_ID_PCM_S16BE
,
MKTAG
(16 ,
'D'
,
'S'
,
'P'
) },
134
{
AV_CODEC_ID_PCM_S16LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 16 ) },
135
{
AV_CODEC_ID_PCM_S24BE
,
MKTAG
(24 ,
'D'
,
'S'
,
'P'
) },
136
{
AV_CODEC_ID_PCM_S24LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 24 ) },
137
{
AV_CODEC_ID_PCM_S32BE
,
MKTAG
(32 ,
'D'
,
'S'
,
'P'
) },
138
{
AV_CODEC_ID_PCM_S32LE
,
MKTAG
(
'P'
,
'S'
,
'D'
, 32 ) },
139
{
AV_CODEC_ID_PCM_S8
,
MKTAG
(
'P'
,
'S'
,
'D'
, 8 ) },
140
{
AV_CODEC_ID_PCM_U16BE
,
MKTAG
(16 ,
'D'
,
'U'
,
'P'
) },
141
{
AV_CODEC_ID_PCM_U16LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 16 ) },
142
{
AV_CODEC_ID_PCM_U24BE
,
MKTAG
(24 ,
'D'
,
'U'
,
'P'
) },
143
{
AV_CODEC_ID_PCM_U24LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 24 ) },
144
{
AV_CODEC_ID_PCM_U32BE
,
MKTAG
(32 ,
'D'
,
'U'
,
'P'
) },
145
{
AV_CODEC_ID_PCM_U32LE
,
MKTAG
(
'P'
,
'U'
,
'D'
, 32 ) },
146
{
AV_CODEC_ID_PCM_U8
,
MKTAG
(
'P'
,
'U'
,
'D'
, 8 ) },
147
{
AV_CODEC_ID_PCM_S16LE_PLANAR
,
MKTAG
(
'P'
,
'S'
,
'P'
, 16 ) },
148
{
AV_CODEC_ID_MP3
,
MKTAG
(
'M'
,
'P'
,
'3'
,
' '
) },
149
{
AV_CODEC_ID_NONE
, 0 }
150
};
151
152
const
AVCodecTag
*
const
ff_nut_codec_tags
[] = {
153
ff_nut_video_tags
,
ff_nut_audio_tags
,
ff_nut_subtitle_tags
,
154
ff_codec_bmp_tags
,
ff_codec_wav_tags
,
ff_nut_data_tags
, 0
155
};
156
157
void
ff_nut_reset_ts
(
NUTContext
*nut,
AVRational
time_base, int64_t val){
158
int
i;
159
for
(i=0; i<nut->
avf
->
nb_streams
; i++){
160
nut->
stream
[i].
last_pts
=
av_rescale_rnd
(
161
val,
162
time_base.
num
* (int64_t)nut->
stream
[i].
time_base
->
den
,
163
time_base.
den
* (int64_t)nut->
stream
[i].
time_base
->
num
,
164
AV_ROUND_DOWN
);
165
}
166
}
167
168
int64_t
ff_lsb2full
(
StreamContext
*stream, int64_t lsb){
169
int64_t
mask
= (1<<stream->
msb_pts_shift
)-1;
170
int64_t
delta
= stream->
last_pts
- mask/2;
171
return
((lsb - delta)&
mask
) + delta;
172
}
173
174
int
ff_nut_sp_pos_cmp
(
const
Syncpoint
*a,
const
Syncpoint
*
b
){
175
return
((a->
pos
- b->
pos
) >> 32) - ((b->
pos
- a->
pos
) >> 32);
176
}
177
178
int
ff_nut_sp_pts_cmp
(
const
Syncpoint
*a,
const
Syncpoint
*
b
){
179
return
((a->
ts
- b->
ts
) >> 32) - ((b->
ts
- a->
ts
) >> 32);
180
}
181
182
int
ff_nut_add_sp
(
NUTContext
*nut, int64_t pos, int64_t back_ptr, int64_t ts){
183
Syncpoint
*
sp
=
av_mallocz
(
sizeof
(
Syncpoint
));
184
struct
AVTreeNode
*node =
av_tree_node_alloc
();
185
186
if
(!sp || !node) {
187
av_freep
(&sp);
188
av_freep
(&node);
189
return
AVERROR
(ENOMEM);
190
}
191
192
sp->
pos
= pos;
193
sp->
back_ptr
= back_ptr;
194
sp->
ts
= ts;
195
av_tree_insert
(&nut->
syncpoints
, sp, (
void
*)
ff_nut_sp_pos_cmp
, &node);
196
if
(node){
197
av_free
(sp);
198
av_free
(node);
199
}
200
201
return
0;
202
}
203
204
static
int
enu_free
(
void
*opaque,
void
*
elem
)
205
{
206
av_free
(elem);
207
return
0;
208
}
209
210
void
ff_nut_free_sp
(
NUTContext
*nut)
211
{
212
av_tree_enumerate
(nut->
syncpoints
,
NULL
,
NULL
,
enu_free
);
213
av_tree_destroy
(nut->
syncpoints
);
214
}
215
216
const
Dispositions
ff_nut_dispositions
[] = {
217
{
"default"
,
AV_DISPOSITION_DEFAULT
},
218
{
"dub"
,
AV_DISPOSITION_DUB
},
219
{
"original"
,
AV_DISPOSITION_ORIGINAL
},
220
{
"comment"
,
AV_DISPOSITION_COMMENT
},
221
{
"lyrics"
,
AV_DISPOSITION_LYRICS
},
222
{
"karaoke"
,
AV_DISPOSITION_KARAOKE
},
223
{
""
, 0}
224
};
225
226
const
AVMetadataConv
ff_nut_metadata_conv
[] = {
227
{
"Author"
,
"artist"
},
228
{
"X-CreationTime"
,
"date"
},
229
{
"CreationTime"
,
"date"
},
230
{
"SourceFilename"
,
"filename"
},
231
{
"X-Language"
,
"language"
},
232
{
"X-Disposition"
,
"disposition"
},
233
{
"X-Replaces"
,
"replaces"
},
234
{
"X-Depends"
,
"depends"
},
235
{
"X-Uses"
,
"uses"
},
236
{
"X-UsesFont"
,
"usesfont"
},
237
{ 0 },
238
};