[Bug 752523] New: avdec_h264 crashes when using debug-mv=true option
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Fri Jul 17 01:34:03 PDT 2015
https://bugzilla.gnome.org/show_bug.cgi?id=752523
Bug ID: 752523
Summary: avdec_h264 crashes when using debug-mv=true option
Classification: Platform
Product: GStreamer
Version: 1.5.2
OS: Linux
Status: NEW
Severity: major
Priority: Normal
Component: gst-libav
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: mathieu_hinder12 at hotmail.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
FFmpeg/Libav can display motion vectors on top of h264 decoded video. The
avdec_h264 element has a property:
- 'debug-mv': Whether libav should print motion vectors on top of the image
Enabling this option crashes a pipeline.
When looking at how it's done in FFmpeg, it happens in the mpegvideo.c file in
the function ff_print_debug_info(), which wraps ff_print_debug_info2(), and
there the motion vectors are drawn.
In the gst-libav version of mpegvideo.c, ff_print_debug_info() doesn't do
anything except logging. ff_print_debug_info2() is absent.
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