aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* 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 "avcodec.h"
#include "bsf.h"
#include "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 AVBitStreamFilter ff_chomp_bsf = {
.name = "chomp",
.filter = chomp_filter,
};
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