FFmpeg 1.0.10
asendcmd
asendcmd must be inserted between two audio filters, sendcmd must be inserted between two video filters, but apart from that they act the same way.
sendcmd
asendcmd must be inserted between two audio filters, sendcmd must be inserted between two video filters, but apart from that they act the same way.
asetpts
asetpts works on audio frames, setpts on video frames.
setpts
asetpts works on audio frames, setpts on video frames.
settb
Set the timebase to use for the output frames timestamps.
asettb
Set the timebase to use for the output frames timestamps.
concat
Concatenate audio and video streams, joining them together one after the other.
showspectrum
Convert input audio to a video output, representing the audio frequency spectrum.
showwaves
Convert input audio to a video output, representing the samples waves.