mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-26 09:12:33 +00:00
78accb876c
* qatar/master: ffmpeg: fix some indentation ffmpeg: fix operation with --disable-avfilter simple_idct: remove disabled code motion_est: remove disabled code vc1: remove disabled code fate: separate lavf-mxf_d10 test from lavf-mxf cabac: Move code only used in the cabac test program to cabac.c. ffplay: warn that -pix_fmt is no longer working, suggest alternative ffplay: warn that -s is no longer working, suggest alternative lavf: rename enc variable in utils.c:has_codec_parameters() lavf: use designated initialisers for all (de)muxers. wav: remove a use of deprecated AV_METADATA_ macro rmdec: remove useless ap parameter from rm_read_header_old() dct-test: remove write-only variable des: fix #if conditional around P_shuffle Use LOCAL_ALIGNED in ff_check_alignment() Conflicts: ffmpeg.c libavformat/avidec.c libavformat/matroskaenc.c libavformat/mp3enc.c libavformat/oggenc.c libavformat/utils.c tests/ref/lavf/mxf Merged-by: Michael Niedermayer <michaelni@gmx.at>
85 lines
2.4 KiB
C
85 lines
2.4 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"
|
|
|
|
#define RAND_TAG MKBETAG('R','a','n','d')
|
|
|
|
typedef struct {
|
|
int nb_frames;
|
|
} FilmstripMuxContext;
|
|
|
|
static int write_header(AVFormatContext *s)
|
|
{
|
|
if (s->streams[0]->codec->pix_fmt != PIX_FMT_RGBA) {
|
|
av_log(s, AV_LOG_ERROR, "only PIX_FMT_RGBA is supported\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
FilmstripMuxContext *film = s->priv_data;
|
|
avio_write(s->pb, pkt->data, pkt->size);
|
|
film->nb_frames++;
|
|
return 0;
|
|
}
|
|
|
|
static int write_trailer(AVFormatContext *s)
|
|
{
|
|
FilmstripMuxContext *film = s->priv_data;
|
|
AVIOContext *pb = s->pb;
|
|
AVStream *st = s->streams[0];
|
|
int i;
|
|
|
|
avio_wb32(pb, RAND_TAG);
|
|
avio_wb32(pb, film->nb_frames);
|
|
avio_wb16(pb, 0); // packing method
|
|
avio_wb16(pb, 0); // reserved
|
|
avio_wb16(pb, st->codec->width);
|
|
avio_wb16(pb, st->codec->height);
|
|
avio_wb16(pb, 0); // leading
|
|
avio_wb16(pb, 1/av_q2d(st->codec->time_base));
|
|
for (i = 0; i < 16; i++)
|
|
avio_w8(pb, 0x00); // reserved
|
|
avio_flush(pb);
|
|
return 0;
|
|
}
|
|
|
|
AVOutputFormat ff_filmstrip_muxer = {
|
|
.name = "filmstrip",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Adobe Filmstrip"),
|
|
.extensions = "flm",
|
|
.priv_data_size = sizeof(FilmstripMuxContext),
|
|
.audio_codec = CODEC_ID_NONE,
|
|
.video_codec = CODEC_ID_RAWVIDEO,
|
|
.write_header = write_header,
|
|
.write_packet = write_packet,
|
|
.write_trailer = write_trailer,
|
|
};
|