mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-29 14:56:07 +00:00
073251316e
Also mark them as av_cold while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*
|
|
* Adobe Filmstrip muxer
|
|
* Copyright (c) 2010 Peter Ross
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Adobe Filmstrip muxer
|
|
*/
|
|
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "avformat.h"
|
|
#include "avio_internal.h"
|
|
#include "mux.h"
|
|
#include "rawenc.h"
|
|
|
|
#define RAND_TAG MKBETAG('R','a','n','d')
|
|
|
|
static av_cold int init(AVFormatContext *s)
|
|
{
|
|
if (s->streams[0]->codecpar->format != AV_PIX_FMT_RGBA) {
|
|
av_log(s, AV_LOG_ERROR, "only AV_PIX_FMT_RGBA is supported\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int write_trailer(AVFormatContext *s)
|
|
{
|
|
AVIOContext *pb = s->pb;
|
|
AVStream *st = s->streams[0];
|
|
|
|
avio_wb32(pb, RAND_TAG);
|
|
avio_wb32(pb, st->nb_frames);
|
|
avio_wb16(pb, 0); // packing method
|
|
avio_wb16(pb, 0); // reserved
|
|
avio_wb16(pb, st->codecpar->width);
|
|
avio_wb16(pb, st->codecpar->height);
|
|
avio_wb16(pb, 0); // leading
|
|
// TODO: should be avg_frame_rate
|
|
avio_wb16(pb, st->time_base.den / st->time_base.num);
|
|
ffio_fill(pb, 0x00, 16); // reserved
|
|
|
|
return 0;
|
|
}
|
|
|
|
const FFOutputFormat ff_filmstrip_muxer = {
|
|
.p.name = "filmstrip",
|
|
.p.long_name = NULL_IF_CONFIG_SMALL("Adobe Filmstrip"),
|
|
.p.extensions = "flm",
|
|
.p.audio_codec = AV_CODEC_ID_NONE,
|
|
.p.video_codec = AV_CODEC_ID_RAWVIDEO,
|
|
.p.subtitle_codec = AV_CODEC_ID_NONE,
|
|
.flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH |
|
|
FF_OFMT_FLAG_ONLY_DEFAULT_CODECS,
|
|
.init = init,
|
|
.write_packet = ff_raw_write_packet,
|
|
.write_trailer = write_trailer,
|
|
};
|