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mpv/demux/demux_edl.c
wm4 50837129b2 timeline: add new EDL format
Edit Decision Lists (EDL) allow combining parts from multiple source
files into one virtual file. MPlayer had an EDL format (which sucked),
which mplayer2 tried to improve with its own format (which sucked). As
logic demands, mpv introduces its very own format (which sucks).

The new format should actually be much simpler and easier to use, and
its implementation is simpler and smaller too.
2013-11-19 22:38:27 +01:00

54 lines
1.6 KiB
C

/*
* This file is part of MPlayer.
*
* Original author: Uoti Urpala
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include "demux.h"
#include "stream/stream.h"
static bool test_header(struct stream *s, char *header)
{
return bstr_equals0(stream_peek(s, strlen(header)), header);
}
// Note: the real work is handled in tl_mpv_edl.c.
static int try_open_file(struct demuxer *demuxer, enum demux_check check)
{
struct stream *s = demuxer->stream;
if (check >= DEMUX_CHECK_UNSAFE) {
if (!test_header(s, "mplayer EDL file") &&
!test_header(s, "mpv EDL v0\n"))
return -1;
}
demuxer->file_contents = stream_read_complete(s, demuxer, 1000000);
if (demuxer->file_contents.start == NULL)
return -1;
return 0;
}
const struct demuxer_desc demuxer_desc_edl = {
.name = "edl",
.desc = "Edit decision list",
.type = DEMUXER_TYPE_EDL,
.open = try_open_file,
};