i tried to modify a already existing code for ffplay for hours, but I could not get it. I could not find a manual for vertical and horizontal stacking parameters. I’m always getting invalid argument errors when I try to adopt it to my needs. So I’m asking here for help.
My idea is based on that: ffplay / ffmpeg setup table with audio and video filters
The working code that I modified a little but want to modify further without luck is:
ffplay -f lavfi \
"amovie=in.mp4,asplit=3[sv][eb][av]; \
[sv]showvolume=b=4:f=0:ds=log:c=VOLUME:w=720:h=68[sv-v]; \
[eb]ebur128=video=1:size=720x540:meter=18[eb-v][out1]; \
[av]avectorscope=s=720x540:zoom=1.3:rc=2:gc=200:bc=10:rf=1:gf=8:bf=7[av-v]; \
[sv-v][eb-v][av-v]vstack=3[1c]; \
movie=in.mp4,split=4[v][wf][wfc][vs]; \
[wf]waveform=m=1:d=0:r=0:c=7[wf-vus]; \
[wf-vus][v]scale2ref=iw:1220-ih[wf-va][sig]; \
[wf-va]setsar=1[wf-v]; \
[wfc]waveform=m=0:d=0:r=0:c=7,scale=610x610,setsar=1[wfc-v]; \
[vs]vectorscope=m=color3:g=color,scale=610x610,setsar=1[vs-v]; \
[sig][wf-v]vstack[2c]; \
[wfc-v][vs-v]vstack[3c]; \
[1c][2c][3c]hstack=3,scale=1920:-1[out0]"
I’d like to change it to that style - I'm not yet allowed to post images directly in this question, so I need to link it:
Link to image how I'd like the layout to be
I’d like to have the video shown in 1920x1080 (keeping aspect ratio, downscale if necessary).
Use
ffplay -f lavfi \
"amovie=in.mp4,asplit=3[sv][eb][av]; \
[sv]showvolume=b=4:f=0:ds=log:c=VOLUME:w=400:h=200[sv-v]; \
[eb]ebur128=video=1:size=800x800:meter=18[eb-v][out1]; \
[eb-v]scale=400x400[eb-v]; \
[av]avectorscope=s=400x480:zoom=1.3:rc=2:gc=200:bc=10:rf=1:gf=8:bf=7[av-v]; \
[sv-v][eb-v][av-v]vstack=3[1c]; \
movie=in.mp4,scale=-1:1080[v]; \
[1c][v]hstack=2[out0]"
The audio is assumed to be mono; for N channels, change showvolume h to N/200.