mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-23 15:48:23 +00:00
Code Issues 1 Projects Releases Wiki Activity

avidemux: additional verification heuristics for VBR audio stream

Browse source 
Check for and override some header field(s) for reasonable values, according
to later expected use in calculations.
This commit is contained in:
Mark Nauwelaerts 2010-07-07 14:16:59 +02:00
parent d5a4da9a69
commit 7955c01f19
1 changed files with 13 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
gst/avi/gstavidemux.c
View file

@ -2005,6 +2005,19 @@ gst_avi_demux_parse_stream (GstAviDemux * avi, GstBuffer * buf)
"invalid audio header, ignoring stream"); "invalid audio header, ignoring stream");
goto fail; goto fail;
} }
/* some more sanity checks */
if (stream->is_vbr) {
if (stream->strf.auds->blockalign <= 4) {
/* that would mean (too) many frames per chunk,
* so not likely set as expected */
GST_DEBUG_OBJECT (element,
"suspicious blockalign %d for VBR audio; "
"overriding to 1 frame per chunk",
stream->strf.auds->blockalign);
/* this should top any likely value */
stream->strf.auds->blockalign = (1 << 12);
}
}
break; break;
case GST_RIFF_FCC_iavs: case GST_RIFF_FCC_iavs:
stream->is_vbr = TRUE; stream->is_vbr = TRUE;