* mtv demuxer
* Copyright (c) 2006 Reynaldo H. Verdejo Pinochet
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Calculate width and height if missing from header */
- if(!mtv->img_width)
+ if(mtv->img_bpp>>3){
+ if(!mtv->img_width && mtv->img_height)
mtv->img_width=mtv->img_segment_size / (mtv->img_bpp>>3)
/ mtv->img_height;
- if(!mtv->img_height)
+ if(!mtv->img_height && mtv->img_width)
mtv->img_height=mtv->img_segment_size / (mtv->img_bpp>>3)
/ mtv->img_width;
+ }
+ if(!mtv->img_height || !mtv->img_width){
+ av_log(s, AV_LOG_ERROR, "width or height is invalid and I cannot calculate them from other information\n");
+ return AVERROR(EINVAL);
+ }
avio_skip(pb, 4);
audio_subsegments = avio_rl16(pb);
+ if(!audio_subsegments){
+ av_log(s, AV_LOG_ERROR, "audio_subsegments is 0\n");
+ return AVERROR(EINVAL);
+ }
mtv->full_segment_size =
audio_subsegments * (MTV_AUDIO_PADDING_SIZE + MTV_ASUBCHUNK_DATA_SIZE) +
mtv->img_segment_size;
* just swap bytes as they come
*/
- for(i=0;i<mtv->img_segment_size/2;i++)
+ for(i=0;i<ret/2;i++)
*((uint16_t *)pkt->data+i) = av_bswap16(*((uint16_t *)pkt->data+i));
#endif
pkt->stream_index = 0;