[FFmpeg-devel] [PATCH] avutil/opt: Don't use NULL for %s string in a log message

[Anton Khirnov]

Quoting Andreas Rheinhardt (2020-03-29 06:14:37)
> If one calls av_opt_set() with an incorrect string to set the value of
> an option of type AV_OPT_TYPE_VIDEO_RATE, the given string is used in a
> log message via %s. This also happens when the string is actually a
> nullpointer in which case using it for %s is forbidden.
> 
> This commit changes this by erroring out early in case of a nullpointer.
> 
> This also fixes a warning from GCC 9.2:
> "‘%s’ directive argument is null [-Wformat-overflow=]"
> 
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
> ---

Looks ok

-- 
Anton Khirnov