1.2.12
Filters
Audio
Multimedia
Video
Sinks
Audio
Video
Sources
Audio
Multimedia
Video
Other
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
3.0.12
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
1.1.16
1.0.10
0.11.5
0.10.16
0.9.4
0.8.15
0.7.17
aconvert Convert the input audio format to the specified formats.
allpass Apply a two-pole all-pass filter with central frequency (in Hz) frequency, and filter-width width.
highpass Apply a high-pass filter with 3dB point frequency.
lowpass Apply a low-pass filter with 3dB point frequency.
bass Boost or cut the bass (lower) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
treble Boost or cut treble (upper) frequencies of the audio using a two-pole shelving filter with a response similar to that of a standard hi-fi’s tone-controls.
bandpass Apply a two-pole Butterworth band-pass filter with central frequency frequency, and (3dB-point) band-width width.
bandreject Apply a two-pole Butterworth band-reject filter with central frequency frequency, and (3dB-point) band-width width.
biquad Apply a biquad IIR filter with the given coefficients.
equalizer Apply a two-pole peaking equalisation (EQ) filter.
afade Apply fade-in/out effect to input audio.
aformat Set output format constraints for the input audio.
amerge Merge two or more audio streams into a single multi-channel stream.
amix Mixes multiple audio inputs into a single output.
anull Pass the audio source unchanged to the output.
apad Pad the end of a audio stream with silence, this can be used together with -shortest to extend audio streams to the same length as the video stream.
aresample Resample the input audio to the specified parameters, using the libswresample library.
asetnsamples Set the number of samples per each output audio frame.
ashowinfo Show a line containing various information for each input audio frame.
asplit Split input audio into several identical outputs.
astreamsync Forward two audio streams and control the order the buffers are forwarded.
atempo Adjust audio tempo.
earwax Make audio easier to listen to on headphones.
pan Mix channels with specific gain levels.
silencedetect Detect silence in an audio stream.
asyncts Synchronize audio data with timestamps by squeezing/stretching it and/or dropping samples/adding silence when needed.
channelsplit Split each channel in input audio stream into a separate output stream.
channelmap Remap input channels to new locations.
join Join multiple input streams into one multi-channel stream.
resample Convert the audio sample format, sample rate and channel layout.
volume Adjust the input audio volume.
volumedetect Detect the volume of the input video.