FFmpeg
libavcodec
bsf
chomp.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 "
bsf.h
"
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#include "
bsf_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
FFBitStreamFilter
ff_chomp_bsf
= {
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.
p
.
name
=
"chomp"
,
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.filter =
chomp_filter
,
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};
bsf_internal.h
AVBitStreamFilter::name
const char * name
Definition:
bsf.h:112
AVPacket::data
uint8_t * data
Definition:
packet.h:539
AVBSFContext
The bitstream filter state.
Definition:
bsf.h:68
ff_chomp_bsf
const FFBitStreamFilter ff_chomp_bsf
This filter removes a string of NULL bytes from the end of a packet.
Definition:
chomp.c:42
bsf.h
pkt
AVPacket * pkt
Definition:
movenc.c:60
ctx
AVFormatContext * ctx
Definition:
movenc.c:49
FFBitStreamFilter
Definition:
bsf_internal.h:27
FFBitStreamFilter::p
AVBitStreamFilter p
The public AVBitStreamFilter.
Definition:
bsf_internal.h:31
AVPacket::size
int size
Definition:
packet.h:540
ret
ret
Definition:
filter_design.txt:187
chomp_filter
static int chomp_filter(AVBSFContext *ctx, AVPacket *pkt)
Definition:
chomp.c:25
AVPacket
This structure stores compressed data.
Definition:
packet.h:516
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:256
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