[Bug 793959] New: qtmux: round to nearest when computing mehd.fragment_duration
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Thu Mar 1 16:59:38 UTC 2018
https://bugzilla.gnome.org/show_bug.cgi?id=793959
Bug ID: 793959
Summary: qtmux: round to nearest when computing
mehd.fragment_duration
Classification: Platform
Product: GStreamer
Version: unspecified
OS: All
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-good
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: aboya at igalia.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
In some cases mehd.fragment_duration is one unit less than the actual duration
of the fragmented movie.
$ gst-launch-1.0 -v videotestsrc num-buffers=3 \
! video/x-raw, framerate="(fraction)3/1" \
! x264enc \
! identity silent=false \
! mp4mux movie-timescale=30 trak-timescale=30 fragment-duration=5000 \
! filesink location=bad-duration.mp4 2>&1
$ mp4dump bad-duration.mp4 |grep duration -B6
Expected:
[mehd] size=12+8, version=1
duration = 30
Actual:
[mehd] size=12+8, version=1
duration = 29
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