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libavcodec
movsub_bsf.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2008 Reimar Döffinger
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/common.h
"
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#include "
libavutil/intreadwrite.h
"
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#include "
avcodec.h
"
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static
int
text2movsub
(
AVBitStreamFilterContext
*bsfc,
AVCodecContext
*avctx,
const
char
*
args
,
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uint8_t
**poutbuf,
int
*poutbuf_size,
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const
uint8_t
*
buf
,
int
buf_size,
int
keyframe){
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if
(buf_size > 0xffff)
return
0;
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*poutbuf_size = buf_size + 2;
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*poutbuf =
av_malloc
(*poutbuf_size +
FF_INPUT_BUFFER_PADDING_SIZE
);
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AV_WB16
(*poutbuf, buf_size);
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memcpy(*poutbuf + 2, buf, buf_size);
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return
1;
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}
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AVBitStreamFilter
ff_text2movsub_bsf
={
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.
name
=
"text2movsub"
,
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.filter =
text2movsub
,
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};
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static
int
mov2textsub
(
AVBitStreamFilterContext
*bsfc,
AVCodecContext
*avctx,
const
char
*
args
,
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uint8_t
**poutbuf,
int
*poutbuf_size,
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const
uint8_t
*
buf
,
int
buf_size,
int
keyframe){
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if
(buf_size < 2)
return
0;
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*poutbuf_size =
FFMIN
(buf_size - 2,
AV_RB16
(buf));
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*poutbuf =
av_malloc
(*poutbuf_size +
FF_INPUT_BUFFER_PADDING_SIZE
);
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memcpy(*poutbuf, buf + 2, *poutbuf_size);
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return
1;
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}
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AVBitStreamFilter
ff_mov2textsub_bsf
={
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.
name
=
"mov2textsub"
,
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.filter =
mov2textsub
,
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};
Generated on Sun Jul 20 2014 23:05:51 for FFmpeg by
1.8.2