* RL2 Format Demuxer
* Copyright (c) 2008 Sascha Sommer (saschasommer@freenet.de)
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* RL2 file demuxer
* @file
* @author Sascha Sommer (saschasommer@freenet.de)
- * For more information regarding the RL2 file format, visit:
- * http://wiki.multimedia.cx/index.php?title=RL2
+ * @see http://wiki.multimedia.cx/index.php?title=RL2
*
* extradata:
* 2 byte le initial drawing offset within 320x200 viewport
*/
#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
#include "avformat.h"
#define EXTRADATA1_SIZE (6 + 256 * 3) ///< video base, clr, palette
unsigned int audio_frame_counter = 0;
unsigned int video_frame_counter = 0;
unsigned int back_size;
- int data_size;
- unsigned short encoding_method;
unsigned short sound_rate;
unsigned short rate;
unsigned short channels;
int i;
int ret = 0;
- url_fskip(pb,4); /* skip FORM tag */
+ avio_skip(pb,4); /* skip FORM tag */
back_size = avio_rl32(pb); /**< get size of the background frame */
signature = avio_rb32(pb);
- data_size = avio_rb32(pb);
+ avio_skip(pb, 4); /* data size */
frame_count = avio_rl32(pb);
/* disallow back_sizes and frame_counts that may lead to overflows later */
if(back_size > INT_MAX/2 || frame_count > INT_MAX / sizeof(uint32_t))
return AVERROR_INVALIDDATA;
- encoding_method = avio_rl16(pb);
+ avio_skip(pb, 2); /* encoding mentod */
sound_rate = avio_rl16(pb);
rate = avio_rl16(pb);
channels = avio_rl16(pb);
}
AVInputFormat ff_rl2_demuxer = {
- "rl2",
- NULL_IF_CONFIG_SMALL("RL2 format"),
- sizeof(Rl2DemuxContext),
- rl2_probe,
- rl2_read_header,
- rl2_read_packet,
- NULL,
- rl2_read_seek,
+ .name = "rl2",
+ .long_name = NULL_IF_CONFIG_SMALL("RL2 format"),
+ .priv_data_size = sizeof(Rl2DemuxContext),
+ .read_probe = rl2_probe,
+ .read_header = rl2_read_header,
+ .read_packet = rl2_read_packet,
+ .read_seek = rl2_read_seek,
};