[FFmpeg-user] FFplay - Audio bars on video

DopeLabs dopelabs at dubstep.fm
Sat Jun 24 10:09:47 EEST 2017


It will work if you use ffmpeg and pipe to ffplay... here is one example

ffmpeg -loglevel 0 -i rtmp://video/live/stream -filter_complex "[0:a]pan=1c|c0=c0,showvolume=r=60:b=0:t=0:v=0:w=720:h=80:f=0.5:o=1[left];[0:a]pan=1c|c0=c1,showvolume=r=60:b=0:t=0:v=0:w=720:h=80:f=0.5:o=1[right];[left][0:v]hstack[tmp1];[tmp1][right]hstack" -c:v h264 -preset ultrafast -c:a copy -f flv - | ffplay -f flv -




> On Jun 17, 2017, at 11:39 45PM, Manmathan <kottaram.manoj at gmail.com> wrote:
> 
> Hello Everyone.
> We need to monitor audio (vertical bar-graph) over video of* live *stream. 
> Audio is able to monitor separately with ffplay :
> (http://www.ffmpeg-archive.org/Error-configuring-filters-AudioBars-td4680275.html#a4680277)
> ffplay -f lavfi "amovie=in.mp4, asplit [a][out1]; [a] 
> showfreqs=mode=line:fscale=log [out0]"
> 
> Audio over video is possible with ffmpeg on recorded
> file.(http://www.ffmpeg-archive.org/how-to-create-audio-bar-in-video-td4680323.html)
> ffmpeg -i inputfile_or_stream -filter_complex "[0:a]asplit[a][aout];
> [a]showvolume=o=v[bars]; [0:v][bars]overlay=x=main_w-overlay_w:y=0[vout]"
> -map "[vout]" -map "[aout]" output.mp4 
> 
> Please guide how to do this with* ffplay* or live viewing on ffmpeg or pipe
> out of the above to vlc.
> 
> 
> 
> 
> 
> --
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