libmpdemux/demux_edl.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdlib.h>
  20 #include <stdbool.h>
  21 #include <string.h>
  22
  23 #include "demuxer.h"
  24 #include "stream/stream.h"
  25
  26 static int try_open_file(struct demuxer *demuxer)
  27 {
  28     struct stream *s = demuxer->stream;
  29     const char header[] = "mplayer EDL file";
  30     const int len = sizeof(header) - 1;
  31     char buf[len];
  32     if (stream_read(s, buf, len) < len)
  33         return 0;
  34     if (strncmp(buf, header, len))
  35         return 0;
  36     stream_seek(s, 0);
  37     demuxer->file_contents = stream_read_complete(s, demuxer, 1000000, 0);
  38     if (demuxer->file_contents.start == NULL)
  39         return 0;
  40     return DEMUXER_TYPE_EDL;
  41 }
  42
  43 static int dummy_fill_buffer(struct demuxer *demuxer, struct demux_stream *ds)
  44 {
  45     return 0;
  46 }
  47
  48 const struct demuxer_desc demuxer_desc_edl = {
  49     .info = "EDL file demuxer",
  50     .name = "edl",
  51     .shortdesc = "EDL",
  52     .author = "Uoti Urpala",
  53     .comment = "",
  54     .type = DEMUXER_TYPE_EDL,
  55     .safe_check = true,
  56     .check_file = try_open_file,       // no separate .open
  57     .fill_buffer = dummy_fill_buffer,
  58 };