mirror of
https://github.com/FFmpeg/FFmpeg.git
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59c9dc82f4
This commit does for AVOutputFormat what commit
20f9727018 did for AVCodec:
It adds a new type FFOutputFormat, moves all the internals
of AVOutputFormat to it and adds a now reduced AVOutputFormat
as first member.
This does not affect/improve extensibility of both public
or private fields for muxers (it is still a mess due to lavd).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* Adobe Filmstrip muxer
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* Copyright (c) 2010 Peter Ross
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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/**
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* @file
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* Adobe Filmstrip muxer
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*/
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#include "libavutil/intreadwrite.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "mux.h"
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#include "rawenc.h"
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#define RAND_TAG MKBETAG('R','a','n','d')
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static int write_header(AVFormatContext *s)
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{
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if (s->streams[0]->codecpar->format != AV_PIX_FMT_RGBA) {
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av_log(s, AV_LOG_ERROR, "only AV_PIX_FMT_RGBA is supported\n");
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return AVERROR_INVALIDDATA;
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}
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return 0;
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}
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static int write_trailer(AVFormatContext *s)
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{
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AVIOContext *pb = s->pb;
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AVStream *st = s->streams[0];
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avio_wb32(pb, RAND_TAG);
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avio_wb32(pb, st->nb_frames);
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avio_wb16(pb, 0); // packing method
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avio_wb16(pb, 0); // reserved
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avio_wb16(pb, st->codecpar->width);
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avio_wb16(pb, st->codecpar->height);
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avio_wb16(pb, 0); // leading
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// TODO: should be avg_frame_rate
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avio_wb16(pb, st->time_base.den / st->time_base.num);
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ffio_fill(pb, 0x00, 16); // reserved
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return 0;
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}
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const FFOutputFormat ff_filmstrip_muxer = {
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.p.name = "filmstrip",
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.p.long_name = NULL_IF_CONFIG_SMALL("Adobe Filmstrip"),
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.p.extensions = "flm",
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.p.audio_codec = AV_CODEC_ID_NONE,
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.p.video_codec = AV_CODEC_ID_RAWVIDEO,
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.write_header = write_header,
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.write_packet = ff_raw_write_packet,
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.write_trailer = write_trailer,
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};
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