CODEWITHSUNDEEP
videoffmpeg
Dooyum Ityav
Dooyum Ityav

Reputation: 33

How to adjust showwaves position to the bottom of a video in ffmpeg?

I am trying to adjust the position of waveform in a video using ffmpeg, the position by default is in th center, but i will like to shift it to the bottom. I know i need to use overlay filter, but how to call it is my problem. I tried this but doesn't work.

ffmpeg -i security3.mp3 -filter_complex "[0:a]showwaves=s=1280x202:mode=line[sw]; [sw]overlay=0:H-h,drawtext=fontcolor=white:x=10:y=10:text='\"Song Title\" by Artist'[out]" -map "[out]" -map 0:a -c:v libx264 -preset fast -crf 18 -c:a copy output.mp4

I am getting this error:

Cannot find a matching stream for unlabeled input pad 1 on filter Parsed_overlay_1

Can someone help me here please?

Upvotes: 2

Views: 1218

Answers (1)

llogan
llogan

Reputation: 133973

overlay requires 2 inputs: a background and a foreground. You only have 1 input: the waveform from showwaves. Add a video to use as the background:

ffmpeg -i video.mp4 -i security3.mp3 -filter_complex "[1:a]showwaves=s=1280x202:mode=line[sw];[0:v][sw]overlay=0:H-h,drawtext=fontcolor=white:x=10:y=10:text='\"Song Title\" by Artist'[out]" -map "[out]" -map 1:a -c:v libx264 -preset fast -crf 18 -c:a aac output.mp4

Upvotes: 2

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