Audio
- abuffer
- Buffer audio frames, and make them available to the filter chain.
- aevalsrc
- Generate an audio signal specified by an expression.
- anullsrc
- Null audio source, return unprocessed audio frames.
- abuffer
- Buffer audio frames, and make them available to the filter chain.
- flite
- Synthesize a voice utterance using the libflite library.
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.
- color
- The color source provides an uniformly colored input.
- 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.
- testsrc
- The testsrc source generates a test video pattern, showing a
color pattern, a scrolling gradient and a timestamp.
Multimedia
- aselect
- Select frames to pass in output.
- select
- Select frames to pass in output.
- 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.
- ebur128
- EBU R128 scanner filter.
- 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.
- 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.