ffmpeg/libavcodec/chomp_bsf.c
Andreas Rheinhardt f4098bbc3b avcodec/bsf: Add FFBitStreamFilter, hide internals of BSFs
This patch is analogous to 20f972701806be20a77f808db332d9489343bb78:
It hides the internal part of AVBitStreamFilter by adding a new
internal structure FFBitStreamFilter (declared in bsf_internal.h)
that has an AVBitStreamFilter as its first member; the internal
part of AVBitStreamFilter is moved to this new structure.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-03-23 23:45:45 +01:00

46 lines
1.3 KiB
C

/*
* Chomp bitstream filter
* Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "bsf.h"
#include "bsf_internal.h"
static int chomp_filter(AVBSFContext *ctx, AVPacket *pkt)
{
int ret;
ret = ff_bsf_get_packet_ref(ctx, pkt);
if (ret < 0)
return ret;
while (pkt->size > 0 && !pkt->data[pkt->size - 1])
pkt->size--;
return 0;
}
/**
* This filter removes a string of NULL bytes from the end of a packet.
*/
const FFBitStreamFilter ff_chomp_bsf = {
.p.name = "chomp",
.filter = chomp_filter,
};