FFmpeg
Main Page
Related Pages
Modules
Namespaces
Data Structures
Files
Examples
File List
Globals
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Macros
Groups
Pages
libavcodec
movsub_bsf.c
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2008 Reimar Döffinger
3
*
4
* This file is part of FFmpeg.
5
*
6
* FFmpeg is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU Lesser General Public
8
* License as published by the Free Software Foundation; either
9
* version 2.1 of the License, or (at your option) any later version.
10
*
11
* FFmpeg is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14
* Lesser General Public License for more details.
15
*
16
* You should have received a copy of the GNU Lesser General Public
17
* License along with FFmpeg; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
*/
20
21
#include "
libavutil/common.h
"
22
#include "
libavutil/intreadwrite.h
"
23
#include "
avcodec.h
"
24
25
26
static
int
text2movsub
(
AVBitStreamFilterContext
*bsfc,
AVCodecContext
*avctx,
const
char
*
args
,
27
uint8_t
**poutbuf,
int
*poutbuf_size,
28
const
uint8_t
*
buf
,
int
buf_size,
int
keyframe){
29
if
(buf_size > 0xffff)
return
0;
30
*poutbuf_size = buf_size + 2;
31
*poutbuf =
av_malloc
(*poutbuf_size +
FF_INPUT_BUFFER_PADDING_SIZE
);
32
if
(!*poutbuf)
33
return
AVERROR
(ENOMEM);
34
AV_WB16
(*poutbuf, buf_size);
35
memcpy(*poutbuf + 2, buf, buf_size);
36
return
1;
37
}
38
39
AVBitStreamFilter
ff_text2movsub_bsf
={
40
.
name
=
"text2movsub"
,
41
.filter =
text2movsub
,
42
};
43
44
static
int
mov2textsub
(
AVBitStreamFilterContext
*bsfc,
AVCodecContext
*avctx,
const
char
*
args
,
45
uint8_t
**poutbuf,
int
*poutbuf_size,
46
const
uint8_t
*
buf
,
int
buf_size,
int
keyframe){
47
if
(buf_size < 2)
return
0;
48
*poutbuf_size =
FFMIN
(buf_size - 2,
AV_RB16
(buf));
49
*poutbuf =
av_malloc
(*poutbuf_size +
FF_INPUT_BUFFER_PADDING_SIZE
);
50
if
(!*poutbuf)
51
return
AVERROR
(ENOMEM);
52
memcpy(*poutbuf, buf + 2, *poutbuf_size);
53
return
1;
54
}
55
56
AVBitStreamFilter
ff_mov2textsub_bsf
={
57
.
name
=
"mov2textsub"
,
58
.filter =
mov2textsub
,
59
};
Generated on Sun Mar 8 2015 02:34:56 for FFmpeg by
1.8.2