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libavformat
framecrcenc.c
Go to the documentation of this file.
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/*
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* frame CRC encoder (for codec/format testing)
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* Copyright (c) 2002 Fabrice Bellard
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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/adler32.h
"
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#include "
avformat.h
"
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static
int
framecrc_write_packet
(
struct
AVFormatContext
*s,
AVPacket
*pkt)
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{
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uint32_t crc =
av_adler32_update
(0, pkt->
data
, pkt->
size
);
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char
buf[256];
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snprintf(buf,
sizeof
(buf),
"%d, %"
PRId64
", %d, 0x%08x\n"
, pkt->
stream_index
, pkt->
dts
, pkt->
size
, crc);
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avio_write
(s->
pb
, buf, strlen(buf));
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avio_flush
(s->
pb
);
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return
0;
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}
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AVOutputFormat
ff_framecrc_muxer
= {
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.
name
=
"framecrc"
,
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.long_name =
NULL_IF_CONFIG_SMALL
(
"framecrc testing format"
),
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.extensions =
""
,
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.audio_codec =
CODEC_ID_PCM_S16LE
,
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.video_codec =
CODEC_ID_RAWVIDEO
,
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.write_packet =
framecrc_write_packet
,
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.flags =
AVFMT_VARIABLE_FPS
,
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};