Bill Hertzing bhertzing

## Convert audio to video with ffmpeg - examples.md

      
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                CannonballSkippy
                / Convert audio to video with ffmpeg - examples.md
            
            
              Created
              April 1, 2017 10:48
            
              
                A list of examples on how you can use filters to make visual representations of audio using ffmpeg
              
          
    Convert audio to video with ffmpeg - examples

avectorscope

ffmpeg -i input.mp3 -filter_complex "[0:a]avectorscope=s=1920x1080,format=yuv420p[v]" -map "[v]" -map 0:a avectorscope.mp4

showcqt

ffmpeg -i input.mp3 -filter_complex "[0:a]showcqt=s=1920x1080,format=yuv420p[v]" -map "[v]" -map 0:a showcqt.mp4

ahistogram

ffmpeg -i input.mp3 -filter_complex "[0:a]ahistogram=s=1920x1080,format=yuv420p[v]" -map "[v]" -map 0:a ahistogram.mp4


## .bashrc.task
# Simon's taskwarrior aliases

########################################
# general commands

alias t="task"
alias ta="task add"
alias td="task done"
alias t-="task delete"
alias tm="task modify"

## ffmpeg.sh
# TO MP4 (with quicktime/windows media player support)
# Convert to 720 MP4 (roughly 7MB for 30 seconds)
ffmpeg -i input.mp4 -s hd720 -c:v libx264 -crf 23 -c:a aac -strict -2  -pix_fmt yuv420p output.mp4

# Convert to 1080 MP4 (roughtly 60MB for 30 seconds) - high resolution, but not RAW
ffmpeg -i input.mp4 -s hd1080 -c:v libx264 -crf 23 -c:a aac -strict -2  -pix_fmt yuv420p output.mp4

# Animated gif to mp4
ffmpeg -i input.gif -strict -2  -pix_fmt yuv420p output.mp4

## cloud_files_index
curl -X POST -H "X-Container-Meta-Web-Index: index.html" -H "X-Auth-Token: [AUTH TOKEN]" https://cdn1.clouddrive.com/v1/MossoCloudFS_f4286318-5961-4758-8514-e262c1cd7842/XOTIDAQ02/ -v
	# Simon's taskwarrior aliases

	########################################
	# general commands

	alias t="task"
	alias ta="task add"
	alias td="task done"
	alias t-="task delete"
	alias tm="task modify"
	# TO MP4 (with quicktime/windows media player support)
	# Convert to 720 MP4 (roughly 7MB for 30 seconds)
	ffmpeg -i input.mp4 -s hd720 -c:v libx264 -crf 23 -c:a aac -strict -2 -pix_fmt yuv420p output.mp4

	# Convert to 1080 MP4 (roughtly 60MB for 30 seconds) - high resolution, but not RAW
	ffmpeg -i input.mp4 -s hd1080 -c:v libx264 -crf 23 -c:a aac -strict -2 -pix_fmt yuv420p output.mp4

	# Animated gif to mp4
	ffmpeg -i input.gif -strict -2 -pix_fmt yuv420p output.mp4