[FFmpeg-devel] [PATCH] ffmpeg: check for unconnected outputs

[James Almer]

On 5/2/2017 8:06 PM, wm4 wrote:
> Fixes e.g.:
> 
> ffmpeg -f lavfi -i testsrc -f lavfi -i testsrc -filter_complex "[0:v][1:v]psnr[out]" -f null none

This should be backported to release/3.3 before 3.3.1 is tagged.