Search Results for: Radio broadcast receivers
][aa]vstack[v],[bb][dd]vstack[v ],[v][v ]hstack" vectorscope & waveforms ffplay -f lavfi -i mandelbrot -vf "format=yuv p,split= [a][b][c][d],[a]waveform[aa],[b][aa]vstack[v],[c]waveform=m= [cc],[d]vectorscope=color [dd],[cc][dd]vstack[v ],[v][v ]hstack" waveform split the waveform filter to show broadcast
range of the waveform (y values between and ) in green and out of broadcast range in red. ffplay -i -vf "split[a][b];[a]format=gray,waveform,split[c][d];[b]pad=iw:ih+ [padded];[c]geq=g= :b= [red];[d]geq=r= :b= ,crop=in_w: : : [mid];[red][mid]overlay= : [wave];[padded][wave]overlay= :h-h" waveform with...
http://trac.ffmpeg.org/wiki/FancyFilteringExamples