mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
fd101c9c3b
It only uses an AVIOContext and an AVBPrint. When doing so, it turned out that several non-users of ff_read_line_to_bprint_overwrite() and ff_bprint_to_codecpar_extradata() relied on libavformat/internal.h to include bprint.h or avstring.h for them. In order to avoid a repeat of this and in order to reduce unnecessary dependencies, a forward declaration of struct AVBPrint is used instead of including bprint.h. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/*
|
|
* frame CRC encoder (for codec/format testing)
|
|
* Copyright (c) 2002 Fabrice Bellard
|
|
*
|
|
* 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 <inttypes.h>
|
|
|
|
#include "libavutil/adler32.h"
|
|
#include "libavutil/avstring.h"
|
|
|
|
#include "libavcodec/codec_id.h"
|
|
#include "libavcodec/codec_par.h"
|
|
#include "libavcodec/packet.h"
|
|
|
|
#include "avformat.h"
|
|
#include "internal.h"
|
|
|
|
static int framecrc_write_header(struct AVFormatContext *s)
|
|
{
|
|
int i;
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
AVCodecParameters *par = st->codecpar;
|
|
if (par->extradata) {
|
|
uint32_t crc = av_adler32_update(0, par->extradata, par->extradata_size);
|
|
avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n",
|
|
i, par->extradata_size, crc);
|
|
}
|
|
}
|
|
|
|
return ff_framehash_write_header(s);
|
|
}
|
|
|
|
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", %8"PRId64", %8d, 0x%08"PRIx32,
|
|
pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
|
|
if (pkt->flags != AV_PKT_FLAG_KEY)
|
|
av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags);
|
|
if (pkt->side_data_elems) {
|
|
av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems);
|
|
|
|
for (int i = 0; i < pkt->side_data_elems; i++) {
|
|
av_strlcatf(buf, sizeof(buf), ", %8"SIZE_SPECIFIER,
|
|
pkt->side_data[i].size);
|
|
}
|
|
}
|
|
av_strlcatf(buf, sizeof(buf), "\n");
|
|
avio_write(s->pb, buf, strlen(buf));
|
|
return 0;
|
|
}
|
|
|
|
const AVOutputFormat ff_framecrc_muxer = {
|
|
.name = "framecrc",
|
|
.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"),
|
|
.audio_codec = AV_CODEC_ID_PCM_S16LE,
|
|
.video_codec = AV_CODEC_ID_RAWVIDEO,
|
|
.write_header = framecrc_write_header,
|
|
.write_packet = framecrc_write_packet,
|
|
.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
|
|
AVFMT_TS_NEGATIVE,
|
|
};
|