FFmpeg
libavcodec
chomp_bsf.c
Go to the documentation of this file.
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/*
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* Chomp bitstream filter
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* Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
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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 "
avcodec.h
"
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#include "
bsf.h
"
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#include "
internal.h
"
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static
int
chomp_filter
(
AVBSFContext
*
ctx
,
AVPacket
*
pkt
)
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{
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int
ret
;
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ret
=
ff_bsf_get_packet_ref
(
ctx
,
pkt
);
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if
(
ret
< 0)
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return
ret
;
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while
(
pkt
->
size
> 0 && !
pkt
->
data
[
pkt
->
size
- 1])
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pkt
->
size
--;
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return
0;
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}
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/**
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* This filter removes a string of NULL bytes from the end of a packet.
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*/
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const
AVBitStreamFilter
ff_chomp_bsf
= {
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.
name
=
"chomp"
,
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.filter =
chomp_filter
,
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};
AVBitStreamFilter::name
const char * name
Definition:
avcodec.h:5813
internal.h
AVPacket::data
uint8_t * data
Definition:
avcodec.h:1477
AVBSFContext
The bitstream filter state.
Definition:
avcodec.h:5763
bsf.h
ctx
AVFormatContext * ctx
Definition:
movenc.c:48
ff_chomp_bsf
const AVBitStreamFilter ff_chomp_bsf
This filter removes a string of NULL bytes from the end of a packet.
Definition:
chomp_bsf.c:43
AVPacket::size
int size
Definition:
avcodec.h:1478
avcodec.h
ret
ret
Definition:
filter_design.txt:187
chomp_filter
static int chomp_filter(AVBSFContext *ctx, AVPacket *pkt)
Definition:
chomp_bsf.c:26
pkt
static AVPacket pkt
Definition:
demuxing_decoding.c:54
AVBitStreamFilter
Definition:
avcodec.h:5812
AVPacket
This structure stores compressed data.
Definition:
avcodec.h:1454
ff_bsf_get_packet_ref
int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt)
Called by bitstream filters to get packet for filtering.
Definition:
bsf.c:239
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