[FFmpeg-cvslog] avfilter:vf_libvmaf: improve docs.

ffmpeg | branch: master | Ashish Pratap Singh | Mon Nov 6 07:49:33 2017 -0500| [7b7037e5b035d8805972982d54441663a25bb016] | committer: Ronald S. Bultje avfilter:vf_libvmaf: improve docs. Signed-off-by: Ronald S. Bultje > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commi

[FFmpeg-cvslog] avfilter/vf_libvmaf: fix errors while running with psnr=1.

ffmpeg | branch: master | Ashish Pratap Singh | Mon Nov 6 07:49:19 2017 -0500| [4c38aa79ece4fa0ea7533774197d6408d7d3b9e5] | committer: Ronald S. Bultje avfilter/vf_libvmaf: fix errors while running with psnr=1. This patch fixes the seg fault which ocuured while running libvmaf filter with