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Code Issues 1 Projects Releases Wiki Activity

mpegtsdemux: fix scanning stopping too early

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=648245
This commit is contained in:
Vincent Penquerc'h 2011-09-30 18:54:04 +01:00 committed by Sebastian Dröge
parent fa3d661083
commit e4856a2965
1 changed files with 5 additions and 9 deletions
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14
gst/mpegdemux/gstmpegtsdemux.c
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@ -2987,10 +2987,10 @@ gst_mpegts_demux_sync_scan (GstMpegTSDemux * demux, const guint8 * in_data,
guint size, guint * flush)
{
guint sync_count = 0;
const guint8 *end_scan = in_data + size - demux->packetsize;
guint8 *ptr_data = (guint8 *) in_data;
guint packetsize =
(demux->packetsize ? demux->packetsize : MPEGTS_NORMAL_TS_PACKETSIZE);
const guint8 *end_scan = in_data + size - packetsize;
/* Check if the LUT table is big enough */
if (G_UNLIKELY (demux->sync_lut_len < (size / packetsize))) {
@ -3007,18 +3007,14 @@ gst_mpegts_demux_sync_scan (GstMpegTSDemux * demux, const guint8 * in_data,
guint chance = is_mpegts_sync (ptr_data, end_scan, packetsize);
if (G_LIKELY (chance > 50)) {
/* skip paketsize bytes and try find next */
guint8 *next_sync = ptr_data + packetsize;
if (next_sync < end_scan) {
demux->sync_lut[sync_count] = ptr_data;
sync_count++;
ptr_data += packetsize;
} else
goto done;
demux->sync_lut[sync_count] = ptr_data;
sync_count++;
ptr_data += packetsize;
} else {
ptr_data++;
}
}
done:
if (G_UNLIKELY (!demux->packetsize))
gst_mpegts_demux_detect_packet_size (demux, sync_count);