mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
7308439158
Since 596e5d4783, this is not necessary anymore. It also allows to
actually disable the flushing, improving write performance (but
possibly giving worse latency in real-time streaming).
Signed-off-by: Martin Storsjö <martin@martin.st>
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*
|
|
* frame CRC encoder (for codec/format testing)
|
|
* Copyright (c) 2002 Fabrice Bellard
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/adler32.h"
|
|
#include "avformat.h"
|
|
#include "internal.h"
|
|
|
|
static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
|
|
char buf[256];
|
|
|
|
snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8d, %8d, 0x%08x\n",
|
|
pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
|
|
avio_write(s->pb, buf, strlen(buf));
|
|
return 0;
|
|
}
|
|
|
|
AVOutputFormat ff_framecrc_muxer = {
|
|
.name = "framecrc",
|
|
.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"),
|
|
.extensions = "",
|
|
.audio_codec = AV_CODEC_ID_PCM_S16LE,
|
|
.video_codec = AV_CODEC_ID_RAWVIDEO,
|
|
.write_header = ff_framehash_write_header,
|
|
.write_packet = framecrc_write_packet,
|
|
.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
|
|
AVFMT_TS_NEGATIVE,
|
|
};
|