avmux: fix segfault when a plugin's long_name is NULL (!114) · Merge requests · GStreamer / gst-libav · GitLab

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Nicholas Jackson requested to merge nickajacks1/gst-libav:fix-long_name-plugin-segfault into master Jan 19, 2021

Some plugins register an empty long_name field. Check for this before calling strcmp to avoid a crash.

A very similar issue was previously fixed in !51 (merged). This patch applies a similar fix.

Issue was encountered in a linux environment:

gstreamer 1.16.2
gst-libav 1.16.2
gst-plugins-bad 1.16.2
gst-plugins-base 1.16.2
gst-plugins-good 1.16.2
ffmpeg 4.2.2