overlay – allows you to overlay one stream on top of another. You can also use a picture as a …
Continue reading “The picture is superimposed on the video”
-map – specifies the source track to be included in the output file (if no maps are specified, avconv will …
Continue reading “Arranging tracks from different files”
There is a good, time-tested tool for processing audio, sox. Surprisingly, it managed to merge two audio tracks without any …
Continue reading “An alternative way to mix audio tracks”
