[Bug 760774] New: qtdemux: fix framerate calculation for fragmented format
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Mon Jan 18 03:27:37 PST 2016
https://bugzilla.gnome.org/show_bug.cgi?id=760774
Bug ID: 760774
Summary: qtdemux: fix framerate calculation for fragmented
format
Classification: Platform
Product: GStreamer
Version: unspecified
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-good
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: sh.yang at lge.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
qtdemux calculates framerate using duration and the number of sample. In case
of fragmented mp4 format, however, the number of sample can be figure out after
parsing every moof box. Because qtdemux does not parse every moof in
QTDEMUX_STATE_HEADER state, it cause incorrect framerate calculation. To solve
this, both duration and the number of sample in the first moof can derive
correct framerate.
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