3.0.12
Filters
Audio
Video
Sinks
Audio
Video
Sources
Audio
Multimedia
Video
7.1
7.0.2
6.1.2
6.0.1
5.1.6
5.0.3
4.4.5
4.3.8
4.2.10
4.1.11
4.0.6
3.4.13
3.3.9
3.2.19
3.1.11
2.8.22
2.7.7
2.6.9
2.5.11
2.4.14
2.3.6
2.2.16
2.1.8
2.0.7
1.2.12
1.1.16
1.0.10
0.11.5
0.10.16
0.9.4
0.8.15
0.7.17
Audio
abuffer Buffer audio frames, and make them available to the filter chain.
aevalsrc Generate an audio signal specified by an expression.
anullsrc The null audio source, return unprocessed audio frames.
flite Synthesize a voice utterance using the libflite library.
anoisesrc Generate a noise audio signal.
sine Generate an audio signal made of a sine wave with amplitude 1/8.
Video
buffer Buffer video frames, and make them available to the filter chain.
cellauto Create a pattern generated by an elementary cellular automaton.
mandelbrot Generate a Mandelbrot set fractal, and progressively zoom towards the point specified with start_x and start_y.
mptestsrc Generate various test patterns, as generated by the MPlayer test filter.
frei0r_src Provide a frei0r source.
life Generate a life pattern.
allrgb The allrgb source returns frames of size 4096x4096 of all rgb colors.
allyuv The allyuv source returns frames of size 4096x4096 of all yuv colors.
color The color source provides an uniformly colored input.
haldclutsrc The haldclutsrc source provides an identity Hald CLUT.
nullsrc The nullsrc source returns unprocessed video frames.
rgbtestsrc The rgbtestsrc source generates an RGB test pattern useful for
detecting RGB vs BGR issues.
smptebars The smptebars source generates a color bars pattern, based on
the SMPTE Engineering Guideline EG 1-1990.
smptehdbars The smptehdbars source generates a color bars pattern, based on
the SMPTE RP 219-2002.
testsrc The testsrc source generates a test video pattern, showing a
color pattern, a scrolling gradient and a timestamp.
Multimedia
ahistogram Convert input audio to a video output, displaying the volume histogram.
aphasemeter Convert input audio to a video output, displaying the audio phase.
avectorscope Convert input audio to a video output, representing the audio vector scope.
concat Concatenate audio and video streams, joining them together one after the other.
ebur128 EBU R128 scanner filter.
interleave interleave works with video inputs, ainterleave with audio.
ainterleave interleave works with video inputs, ainterleave with audio.
perms Set read/write permissions for the output frames.
aperms Set read/write permissions for the output frames.
realtime Slow down filtering to match real time approximatively.
arealtime Slow down filtering to match real time approximatively.
select Select frames to pass in output.
aselect Select frames to pass in output.
sendcmd sendcmd must be inserted between two video filters,
asendcmd must be inserted between two audio filters, but apart
from that they act the same way.
asendcmd sendcmd must be inserted between two video filters,
asendcmd must be inserted between two audio filters, but apart
from that they act the same way.
setpts setpts works on video frames, asetpts on audio frames.
asetpts setpts works on video frames, asetpts on audio frames.
settb Set the timebase to use for the output frames timestamps.
asettb Set the timebase to use for the output frames timestamps.
showcqt Convert input audio to a video output representing frequency spectrum logarithmically using Brown-Puckette constant Q transform algorithm with direct frequency domain coefficient calculation (but the transform itself is not really constant Q, instead the Q factor is actually variable/clamped), with musical tone scale, from E0 to D#10.
showfreqs Convert input audio to video output representing the audio power spectrum.
showspectrum Convert input audio to a video output, representing the audio frequency spectrum.
showspectrumpic Convert input audio to a single video frame, representing the audio frequency spectrum.
showvolume Convert input audio volume to a video output.
showwaves Convert input audio to a video output, representing the samples waves.
showwavespic Convert input audio to a single video frame, representing the samples waves.
spectrumsynth Sythesize audio from 2 input video spectrums, first input stream represents magnitude across time and second represents phase across time.
split asplit works with audio input, split with video.
asplit asplit works with audio input, split with video.
zmq zmq and azmq work as a pass-through filters.
azmq zmq and azmq work as a pass-through filters.
amovie This is the same as movie source, except it selects an audio stream by default.
movie Read audio and/or video stream(s) from a movie container.