[FFmpeg-cvslog] libavfilter/dnn/dnn_backend{openvino, tf}: check memory alloc non-NULL

ffmpeg | branch: master | Chris Miceli | Wed Oct 14 11:59:44 2020 +1100| [6bdfea8d4b3683605f47994e491770bc0bc6ce5d] | committer: Guo, Yejun libavfilter/dnn/dnn_backend{openvino, tf}: check memory alloc non-NULL These previously would not check that the return value was non-null meaning it was

[FFmpeg-cvslog] libavfilter/dnn_backend_native: check mem allocation

ffmpeg | branch: master | Chris Miceli | Wed Oct 14 11:19:50 2020 +1100| [ad95e5e45dbb3c3dddc3e2c3fe93bc98f239bd29] | committer: Guo, Yejun libavfilter/dnn_backend_native: check mem allocation check that frame allocations return non-null. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=com