465 lines
33 KiB
Plaintext
465 lines
33 KiB
Plaintext
... abench A->A Benchmark part of a filtergraph.
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..C acompressor A->A Audio compressor.
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... acontrast A->A Simple audio dynamic range compression/expansion filter.
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... acopy A->A Copy the input audio unchanged to the output.
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... acue A->A Delay filtering to match a cue.
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... acrossfade AA->A Cross fade two input audio streams.
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.S. acrossover A->N Split audio into per-bands streams.
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T.C acrusher A->A Reduce audio bit resolution.
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TS. adeclick A->A Remove impulsive noise from input audio.
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TS. adeclip A->A Remove clipping from input audio.
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TS. adecorrelate A->A Apply decorrelation to input audio.
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T.C adelay A->A Delay one or more audio channels.
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TSC adenorm A->A Remedy denormals by adding extremely low-level noise.
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T.. aderivative A->A Compute derivative of input audio.
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TSC adynamicequalizer A->A Apply Dynamic Equalization of input audio.
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T.C adynamicsmooth A->A Apply Dynamic Smoothing of input audio.
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... aecho A->A Add echoing to the audio.
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TSC aemphasis A->A Audio emphasis.
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T.. aeval A->A Filter audio signal according to a specified expression.
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T.C aexciter A->A Enhance high frequency part of audio.
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T.C afade A->A Fade in/out input audio.
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TSC afftdn A->A Denoise audio samples using FFT.
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TS. afftfilt A->A Apply arbitrary expressions to samples in frequency domain.
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.SC afir N->N Apply Finite Impulse Response filter with supplied coefficients in additional stream(s).
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... aformat A->A Convert the input audio to one of the specified formats.
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TSC afreqshift A->A Apply frequency shifting to input audio.
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TSC afwtdn A->A Denoise audio stream using Wavelets.
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T.C agate A->A Audio gate.
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.S. aiir A->N Apply Infinite Impulse Response filter with supplied coefficients.
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T.. aintegral A->A Compute integral of input audio.
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... ainterleave N->A Temporally interleave audio inputs.
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T.. alatency A->A Report audio filtering latency.
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T.C alimiter A->A Audio lookahead limiter.
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TSC allpass A->A Apply a two-pole all-pass filter.
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... aloop A->A Loop audio samples.
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... amerge N->A Merge two or more audio streams into a single multi-channel stream.
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T.. ametadata A->A Manipulate audio frame metadata.
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..C amix N->A Audio mixing.
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... amultiply AA->A Multiply two audio streams.
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TSC anequalizer A->N Apply high-order audio parametric multi band equalizer.
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TSC anlmdn A->A Reduce broadband noise from stream using Non-Local Means.
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TSC anlmf AA->A Apply Normalized Least-Mean-Fourth algorithm to first audio stream.
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TSC anlms AA->A Apply Normalized Least-Mean-Squares algorithm to first audio stream.
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... anull A->A Pass the source unchanged to the output.
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T.. apad A->A Pad audio with silence.
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T.C aperms A->A Set permissions for the output audio frame.
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... aphaser A->A Add a phasing effect to the audio.
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TSC aphaseshift A->A Apply phase shifting to input audio.
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TSC apsyclip A->A Audio Psychoacoustic Clipper.
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... apulsator A->A Audio pulsator.
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..C arealtime A->A Slow down filtering to match realtime.
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... aresample A->A Resample audio data.
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... areverse A->A Reverse an audio clip.
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TSC arnndn A->A Reduce noise from speech using Recurrent Neural Networks.
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... asdr AA->A Measure Audio Signal-to-Distortion Ratio.
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... asegment A->N Segment audio stream.
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... aselect A->N Select audio frames to pass in output.
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... asendcmd A->A Send commands to filters.
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... asetnsamples A->A Set the number of samples for each output audio frames.
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... asetpts A->A Set PTS for the output audio frame.
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... asetrate A->A Change the sample rate without altering the data.
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... asettb A->A Set timebase for the audio output link.
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... ashowinfo A->A Show textual information for each audio frame.
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T.. asidedata A->A Manipulate audio frame side data.
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TSC asoftclip A->A Audio Soft Clipper.
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.S. aspectralstats A->A Show frequency domain statistics about audio frames.
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... asplit A->N Pass on the audio input to N audio outputs.
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.S. astats A->A Show time domain statistics about audio frames.
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..C astreamselect N->N Select audio streams
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TSC asubboost A->A Boost subwoofer frequencies.
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TSC asubcut A->A Cut subwoofer frequencies.
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TSC asupercut A->A Cut super frequencies.
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TSC asuperpass A->A Apply high order Butterworth band-pass filter.
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TSC asuperstop A->A Apply high order Butterworth band-stop filter.
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..C atempo A->A Adjust audio tempo.
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TSC atilt A->A Apply spectral tilt to audio.
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... atrim A->A Pick one continuous section from the input, drop the rest.
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... axcorrelate AA->A Cross-correlate two audio streams.
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TSC bandpass A->A Apply a two-pole Butterworth band-pass filter.
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TSC bandreject A->A Apply a two-pole Butterworth band-reject filter.
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TSC bass A->A Boost or cut lower frequencies.
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TSC biquad A->A Apply a biquad IIR filter with the given coefficients.
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... channelmap A->A Remap audio channels.
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... channelsplit A->N Split audio into per-channel streams.
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... chorus A->A Add a chorus effect to the audio.
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... compand A->A Compress or expand audio dynamic range.
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T.C compensationdelay A->A Audio Compensation Delay Line.
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T.C crossfeed A->A Apply headphone crossfeed filter.
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TSC crystalizer A->A Simple audio noise sharpening filter.
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T.. dcshift A->A Apply a DC shift to the audio.
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T.. deesser A->A Apply de-essing to the audio.
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T.C dialoguenhance A->A Audio Dialogue Enhancement.
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... drmeter A->A Measure audio dynamic range.
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T.C dynaudnorm A->A Dynamic Audio Normalizer.
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... earwax A->A Widen the stereo image.
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... ebur128 A->N EBU R128 scanner.
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TSC equalizer A->A Apply two-pole peaking equalization (EQ) filter.
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T.C extrastereo A->A Increase difference between stereo audio channels.
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..C firequalizer A->A Finite Impulse Response Equalizer.
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... flanger A->A Apply a flanging effect to the audio.
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... haas A->A Apply Haas Stereo Enhancer.
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... hdcd A->A Apply High Definition Compatible Digital (HDCD) decoding.
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.S. headphone N->A Apply headphone binaural spatialization with HRTFs in additional streams.
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TSC highpass A->A Apply a high-pass filter with 3dB point frequency.
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TSC highshelf A->A Apply a high shelf filter.
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... join N->A Join multiple audio streams into multi-channel output.
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... loudnorm A->A EBU R128 loudness normalization
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TSC lowpass A->A Apply a low-pass filter with 3dB point frequency.
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TSC lowshelf A->A Apply a low shelf filter.
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... mcompand A->A Multiband Compress or expand audio dynamic range.
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... pan A->A Remix channels with coefficients (panning).
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... replaygain A->A ReplayGain scanner.
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..C sidechaincompress AA->A Sidechain compressor.
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T.C sidechaingate AA->A Audio sidechain gate.
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... silencedetect A->A Detect silence.
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... silenceremove A->A Remove silence.
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T.C speechnorm A->A Speech Normalizer.
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T.C stereotools A->A Apply various stereo tools.
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T.C stereowiden A->A Apply stereo widening effect.
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... superequalizer A->A Apply 18 band equalization filter.
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.S. surround A->A Apply audio surround upmix filter.
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TSC tiltshelf A->A Apply a tilt shelf filter.
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TSC treble A->A Boost or cut upper frequencies.
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T.. tremolo A->A Apply tremolo effect.
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T.. vibrato A->A Apply vibrato effect.
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T.C virtualbass A->A Audio Virtual Bass.
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T.C volume A->A Change input volume.
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... volumedetect A->A Detect audio volume.
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... aevalsrc |->A Generate an audio signal generated by an expression.
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... afirsrc |->A Generate a FIR coefficients audio stream.
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... anoisesrc |->A Generate a noise audio signal.
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... anullsrc |->A Null audio source, return empty audio frames.
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... hilbert |->A Generate a Hilbert transform FIR coefficients.
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... sinc |->A Generate a sinc kaiser-windowed low-pass, high-pass, band-pass, or band-reject FIR coefficients.
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... sine |->A Generate sine wave audio signal.
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... anullsink A->| Do absolutely nothing with the input audio.
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... addroi V->V Add region of interest to frame.
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... alphaextract V->V Extract an alpha channel as a grayscale image component.
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T.. alphamerge VV->V Copy the luma value of the second input into the alpha channel of the first input.
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TSC amplify V->V Amplify changes between successive video frames.
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... ass V->V Render ASS subtitles onto input video using the libass library.
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TSC atadenoise V->V Apply an Adaptive Temporal Averaging Denoiser.
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T.C avgblur V->V Apply Average Blur filter.
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T.C bbox V->V Compute bounding box for each frame.
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... bench V->V Benchmark part of a filtergraph.
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TSC bilateral V->V Apply Bilateral filter.
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T.. bitplanenoise V->V Measure bit plane noise.
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.S. blackdetect V->V Detect video intervals that are (almost) black.
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... blackframe V->V Detect frames that are (almost) black.
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TSC blend VV->V Blend two video frames into each other.
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... blockdetect V->V Blockdetect filter.
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... blurdetect V->V Blurdetect filter.
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TS. bm3d N->V Block-Matching 3D denoiser.
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T.. boxblur V->V Blur the input.
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TS. bwdif V->V Deinterlace the input image.
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TSC cas V->V Contrast Adaptive Sharpen.
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TSC chromahold V->V Turns a certain color range into gray.
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TSC chromakey V->V Turns a certain color into transparency. Operates on YUV colors.
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TSC chromanr V->V Reduce chrominance noise.
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TSC chromashift V->V Shift chroma.
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... ciescope V->V Video CIE scope.
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T.. codecview V->V Visualize information about some codecs.
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TSC colorbalance V->V Adjust the color balance.
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TSC colorchannelmixer V->V Adjust colors by mixing color channels.
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TSC colorcontrast V->V Adjust color contrast between RGB components.
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TSC colorcorrect V->V Adjust color white balance selectively for blacks and whites.
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TSC colorize V->V Overlay a solid color on the video stream.
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TSC colorkey V->V Turns a certain color into transparency. Operates on RGB colors.
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TSC colorhold V->V Turns a certain color range into gray. Operates on RGB colors.
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TSC colorlevels V->V Adjust the color levels.
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TSC colormap VVV->V Apply custom Color Maps to video stream.
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TS. colormatrix V->V Convert color matrix.
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TS. colorspace V->V Convert between colorspaces.
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TSC colortemperature V->V Adjust color temperature of video.
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TSC convolution V->V Apply convolution filter.
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TS. convolve VV->V Convolve first video stream with second video stream.
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... copy V->V Copy the input video unchanged to the output.
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... cover_rect V->V Find and cover a user specified object.
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..C crop V->V Crop the input video.
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T.. cropdetect V->V Auto-detect crop size.
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... cue V->V Delay filtering to match a cue.
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TSC curves V->V Adjust components curves.
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.SC datascope V->V Video data analysis.
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T.C dblur V->V Apply Directional Blur filter.
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TS. dctdnoiz V->V Denoise frames using 2D DCT.
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TSC deband V->V Debands video.
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T.C deblock V->V Deblock video.
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... decimate N->V Decimate frames (post field matching filter).
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TS. deconvolve VV->V Deconvolve first video stream with second video stream.
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TS. dedot V->V Reduce cross-luminance and cross-color.
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TSC deflate V->V Apply deflate effect.
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... deflicker V->V Remove temporal frame luminance variations.
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... dejudder V->V Remove judder produced by pullup.
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T.. delogo V->V Remove logo from input video.
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T.. derain V->V Apply derain filter to the input.
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... deshake V->V Stabilize shaky video.
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TSC despill V->V Despill video.
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... detelecine V->V Apply an inverse telecine pattern.
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TSC dilation V->V Apply dilation effect.
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T.. displace VVV->V Displace pixels.
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... dnn_classify V->V Apply DNN classify filter to the input.
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... dnn_detect V->V Apply DNN detect filter to the input.
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... dnn_processing V->V Apply DNN processing filter to the input.
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.S. doubleweave V->V Weave input video fields into double number of frames.
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T.C drawbox V->V Draw a colored box on the input video.
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... drawgraph V->V Draw a graph using input video metadata.
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T.C drawgrid V->V Draw a colored grid on the input video.
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T.C drawtext V->V Draw text on top of video frames using libfreetype library.
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T.. edgedetect V->V Detect and draw edge.
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... elbg V->V Apply posterize effect, using the ELBG algorithm.
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T.. entropy V->V Measure video frames entropy.
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.S. epx V->V Scale the input using EPX algorithm.
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T.C eq V->V Adjust brightness, contrast, gamma, and saturation.
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TSC erosion V->V Apply erosion effect.
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TSC estdif V->V Apply Edge Slope Tracing deinterlace.
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TSC exposure V->V Adjust exposure of the video stream.
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... extractplanes V->N Extract planes as grayscale frames.
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TS. fade V->V Fade in/out input video.
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..C feedback VV->VV Apply feedback video filter.
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TSC fftdnoiz V->V Denoise frames using 3D FFT.
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TS. fftfilt V->V Apply arbitrary expressions to pixels in frequency domain.
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... field V->V Extract a field from the input video.
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... fieldhint V->V Field matching using hints.
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... fieldmatch N->V Field matching for inverse telecine.
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T.. fieldorder V->V Set the field order.
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T.C fillborders V->V Fill borders of the input video.
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... find_rect V->V Find a user specified object.
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T.. floodfill V->V Fill area with same color with another color.
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... format V->V Convert the input video to one of the specified pixel formats.
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... fps V->V Force constant framerate.
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... framepack VV->V Generate a frame packed stereoscopic video.
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.S. framerate V->V Upsamples or downsamples progressive source between specified frame rates.
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T.. framestep V->V Select one frame every N frames.
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... freezedetect V->V Detects frozen video input.
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... freezeframes VV->V Freeze video frames.
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T.. fspp V->V Apply Fast Simple Post-processing filter.
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TSC gblur V->V Apply Gaussian Blur filter.
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TS. geq V->V Apply generic equation to each pixel.
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T.. gradfun V->V Debands video quickly using gradients.
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... graphmonitor V->V Show various filtergraph stats.
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TS. grayworld V->V Adjust white balance using LAB gray world algorithm
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TS. greyedge V->V Estimates scene illumination by grey edge assumption.
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TSC guided N->V Apply Guided filter.
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TSC haldclut VV->V Adjust colors using a Hald CLUT.
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TS. hflip V->V Horizontally flip the input video.
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T.. histeq V->V Apply global color histogram equalization.
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... histogram V->V Compute and draw a histogram.
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TSC hqdn3d V->V Apply a High Quality 3D Denoiser.
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.S. hqx V->V Scale the input by 2, 3 or 4 using the hq*x magnification algorithm.
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.S. hstack N->V Stack video inputs horizontally.
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TSC hsvhold V->V Turns a certain HSV range into gray.
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TSC hsvkey V->V Turns a certain HSV range into transparency. Operates on YUV colors.
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T.C hue V->V Adjust the hue and saturation of the input video.
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TSC huesaturation V->V Apply hue-saturation-intensity adjustments.
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... hwdownload V->V Download a hardware frame to a normal frame
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... hwmap V->V Map hardware frames
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... hwupload V->V Upload a normal frame to a hardware frame
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T.. hysteresis VV->V Grow first stream into second stream by connecting components.
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TS. identity VV->V Calculate the Identity between two video streams.
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... idet V->V Interlace detect Filter.
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T.C il V->V Deinterleave or interleave fields.
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TSC inflate V->V Apply inflate effect.
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... interlace V->V Convert progressive video into interlaced.
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... interleave N->V Temporally interleave video inputs.
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... kerndeint V->V Apply kernel deinterlacing to the input.
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TSC kirsch V->V Apply kirsch operator.
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TSC lagfun V->V Slowly update darker pixels.
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T.. latency V->V Report video filtering latency.
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TSC lenscorrection V->V Rectify the image by correcting for lens distortion.
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TSC limitdiff N->V Apply filtering with limiting difference.
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TSC limiter V->V Limit pixels components to the specified range.
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... loop V->V Loop video frames.
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TSC lumakey V->V Turns a certain luma into transparency.
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TSC lut V->V Compute and apply a lookup table to the RGB/YUV input video.
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TSC lut1d V->V Adjust colors using a 1D LUT.
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TSC lut2 VV->V Compute and apply a lookup table from two video inputs.
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TSC lut3d V->V Adjust colors using a 3D LUT.
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TSC lutrgb V->V Compute and apply a lookup table to the RGB input video.
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TSC lutyuv V->V Compute and apply a lookup table to the YUV input video.
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TSC maskedclamp VVV->V Clamp first stream with second stream and third stream.
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TSC maskedmax VVV->V Apply filtering with maximum difference of two streams.
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TSC maskedmerge VVV->V Merge first stream with second stream using third stream as mask.
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TSC maskedmin VVV->V Apply filtering with minimum difference of two streams.
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TSC maskedthreshold VV->V Pick pixels comparing absolute difference of two streams with threshold.
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TSC maskfun V->V Create Mask.
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TSC median V->V Apply Median filter.
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... mergeplanes N->V Merge planes.
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... mestimate V->V Generate motion vectors.
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T.. metadata V->V Manipulate video frame metadata.
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T.. midequalizer VV->V Apply Midway Equalization.
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... minterpolate V->V Frame rate conversion using Motion Interpolation.
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TSC mix N->V Mix video inputs.
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TSC monochrome V->V Convert video to gray using custom color filter.
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T.C morpho VV->V Apply Morphological filter.
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... mpdecimate V->V Remove near-duplicate frames.
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TS. msad VV->V Calculate the MSAD between two video streams.
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TSC multiply VV->V Multiply first video stream with second video stream.
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TSC negate V->V Negate input video.
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TS. nlmeans V->V Non-local means denoiser.
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TSC nnedi V->V Apply neural network edge directed interpolation intra-only deinterlacer.
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... noformat V->V Force libavfilter not to use any of the specified pixel formats for the input to the next filter.
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TS. noise V->V Add noise.
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T.C normalize V->V Normalize RGB video.
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... null V->V Pass the source unchanged to the output.
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T.C oscilloscope V->V 2D Video Oscilloscope.
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TSC overlay VV->V Overlay a video source on top of the input.
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T.. owdenoise V->V Denoise using wavelets.
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... pad V->V Pad the input video.
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... palettegen V->V Find the optimal palette for a given stream.
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... paletteuse VV->V Use a palette to downsample an input video stream.
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T.C perms V->V Set permissions for the output video frame.
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TS. perspective V->V Correct the perspective of video.
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T.C phase V->V Phase shift fields.
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... photosensitivity V->V Filter out photosensitive epilepsy seizure-inducing flashes.
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... pixdesctest V->V Test pixel format definitions.
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TSC pixelize V->V Pixelize video.
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T.C pixscope V->V Pixel data analysis.
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T.C pp V->V Filter video using libpostproc.
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T.. pp7 V->V Apply Postprocessing 7 filter.
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TS. premultiply N->V PreMultiply first stream with first plane of second stream.
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TSC prewitt V->V Apply prewitt operator.
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TSC pseudocolor V->V Make pseudocolored video frames.
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TS. psnr VV->V Calculate the PSNR between two video streams.
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... pullup V->V Pullup from field sequence to frames.
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T.. qp V->V Change video quantization parameters.
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... random V->V Return random frames.
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TSC readeia608 V->V Read EIA-608 Closed Caption codes from input video and write them to frame metadata.
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... readvitc V->V Read vertical interval timecode and write it to frame metadata.
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..C realtime V->V Slow down filtering to match realtime.
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.S. remap VVV->V Remap pixels.
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TS. removegrain V->V Remove grain.
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T.. removelogo V->V Remove a TV logo based on a mask image.
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... repeatfields V->V Hard repeat fields based on MPEG repeat field flag.
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... reverse V->V Reverse a clip.
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TSC rgbashift V->V Shift RGBA.
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TSC roberts V->V Apply roberts cross operator.
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TSC rotate V->V Rotate the input image.
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T.. sab V->V Apply shape adaptive blur.
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..C scale V->V Scale the input video size and/or convert the image format.
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..C scale2ref VV->VV Scale the input video size and/or convert the image format to the given reference.
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... scdet V->V Detect video scene change
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TSC scharr V->V Apply scharr operator.
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TSC scroll V->V Scroll input video.
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... segment V->N Segment video stream.
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... select V->N Select video frames to pass in output.
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TS. selectivecolor V->V Apply CMYK adjustments to specific color ranges.
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... sendcmd V->V Send commands to filters.
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... separatefields V->V Split input video frames into fields.
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... setdar V->V Set the frame display aspect ratio.
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... setfield V->V Force field for the output video frame.
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... setparams V->V Force field, or color property for the output video frame.
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... setpts V->V Set PTS for the output video frame.
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... setrange V->V Force color range for the output video frame.
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... setsar V->V Set the pixel sample aspect ratio.
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... settb V->V Set timebase for the video output link.
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TSC shear V->V Shear transform the input image.
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... showinfo V->V Show textual information for each video frame.
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... showpalette V->V Display frame palette.
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T.. shuffleframes V->V Shuffle video frames.
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TS. shufflepixels V->V Shuffle video pixels.
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T.. shuffleplanes V->V Shuffle video planes.
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T.. sidedata V->V Manipulate video frame side data.
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.S. signalstats V->V Generate statistics from video analysis.
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... signature N->V Calculate the MPEG-7 video signature
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... siti V->V Calculate spatial information (SI) and temporal information (TI).
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T.. smartblur V->V Blur the input video without impacting the outlines.
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TSC sobel V->V Apply sobel operator.
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... split V->N Pass on the input to N video outputs.
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T.C spp V->V Apply a simple post processing filter.
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... sr V->V Apply DNN-based image super resolution to the input.
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TS. ssim VV->V Calculate the SSIM between two video streams.
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.S. stereo3d V->V Convert video stereoscopic 3D view.
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..C streamselect N->N Select video streams
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... subtitles V->V Render text subtitles onto input video using the libass library.
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.S. super2xsai V->V Scale the input by 2x using the Super2xSaI pixel art algorithm.
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T.C swaprect V->V Swap 2 rectangular objects in video.
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T.. swapuv V->V Swap U and V components.
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TSC tblend V->V Blend successive frames.
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... telecine V->V Apply a telecine pattern.
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... thistogram V->V Compute and draw a temporal histogram.
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TSC threshold VVVV->V Threshold first video stream using other video streams.
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T.. thumbnail V->V Select the most representative frame in a given sequence of consecutive frames.
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... tile V->V Tile several successive frames together.
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... tinterlace V->V Perform temporal field interlacing.
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TSC tlut2 V->V Compute and apply a lookup table from two successive frames.
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TSC tmedian V->V Pick median pixels from successive frames.
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T.. tmidequalizer V->V Apply Temporal Midway Equalization.
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TSC tmix V->V Mix successive video frames.
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.S. tonemap V->V Conversion to/from different dynamic ranges.
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... tpad V->V Temporarily pad video frames.
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.S. transpose V->V Transpose input video.
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... trim V->V Pick one continuous section from the input, drop the rest.
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TS. unpremultiply N->V UnPreMultiply first stream with first plane of second stream.
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TS. unsharp V->V Sharpen or blur the input video.
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... untile V->V Untile a frame into a sequence of frames.
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.SC v360 V->V Convert 360 projection of video.
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T.. vaguedenoiser V->V Apply a Wavelet based Denoiser.
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TSC varblur VV->V Apply Variable Blur filter.
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..C vectorscope V->V Video vectorscope.
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T.. vflip V->V Flip the input video vertically.
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... vfrdet V->V Variable frame rate detect filter.
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TSC vibrance V->V Boost or alter saturation.
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TS. vif VV->V Calculate the VIF between two video streams.
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T.. vignette V->V Make or reverse a vignette effect.
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... vmafmotion V->V Calculate the VMAF Motion score.
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.S. vstack N->V Stack video inputs vertically.
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TSC w3fdif V->V Apply Martin Weston three field deinterlace.
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.SC waveform V->V Video waveform monitor.
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.S. weave V->V Weave input video fields into frames.
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.S. xbr V->V Scale the input using xBR algorithm.
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TS. xcorrelate VV->V Cross-correlate first video stream with second video stream.
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.S. xfade VV->V Cross fade one video with another video.
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TSC xmedian N->V Pick median pixels from several video inputs.
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.S. xstack N->V Stack video inputs into custom layout.
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TS. yadif V->V Deinterlace the input image.
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TSC yaepblur V->V Yet another edge preserving blur filter.
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... zoompan V->V Apply Zoom & Pan effect.
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... allrgb |->V Generate all RGB colors.
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... allyuv |->V Generate all yuv colors.
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... cellauto |->V Create pattern generated by an elementary cellular automaton.
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..C color |->V Provide an uniformly colored input.
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... colorchart |->V Generate color checker chart.
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... colorspectrum |->V Generate colors spectrum.
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.S. gradients |->V Draw a gradients.
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... haldclutsrc |->V Provide an identity Hald CLUT.
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... life |->V Create life.
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... mandelbrot |->V Render a Mandelbrot fractal.
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... mptestsrc |->V Generate various test pattern.
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... nullsrc |->V Null video source, return unprocessed video frames.
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... pal75bars |->V Generate PAL 75% color bars.
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... pal100bars |->V Generate PAL 100% color bars.
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... rgbtestsrc |->V Generate RGB test pattern.
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.S. sierpinski |->V Render a Sierpinski fractal.
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... smptebars |->V Generate SMPTE color bars.
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... smptehdbars |->V Generate SMPTE HD color bars.
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... testsrc |->V Generate test pattern.
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... testsrc2 |->V Generate another test pattern.
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... yuvtestsrc |->V Generate YUV test pattern.
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... nullsink V->| Do absolutely nothing with the input video.
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... abitscope A->V Convert input audio to audio bit scope video output.
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... adrawgraph A->V Draw a graph using input audio metadata.
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... agraphmonitor A->V Show various filtergraph stats.
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... ahistogram A->V Convert input audio to histogram video output.
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... aphasemeter A->N Convert input audio to phase meter video output.
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.SC avectorscope A->V Convert input audio to vectorscope video output.
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..C concat N->N Concatenate audio and video streams.
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... showcqt A->V Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output.
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... showfreqs A->V Convert input audio to a frequencies video output.
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.S. showspatial A->V Convert input audio to a spatial video output.
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.S. showspectrum A->V Convert input audio to a spectrum video output.
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.S. showspectrumpic A->V Convert input audio to a spectrum video output single picture.
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... showvolume A->V Convert input audio volume to video output.
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... showwaves A->V Convert input audio to a video output.
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... showwavespic A->V Convert input audio to a video output single picture.
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... spectrumsynth VV->A Convert input spectrum videos to audio output.
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... avsynctest |->AV Generate an Audio Video Sync Test.
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..C amovie |->N Read audio from a movie source.
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..C movie |->N Read from a movie source.
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... afifo A->A Buffer input frames and send them when they are requested.
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... fifo V->V Buffer input images and send them when they are requested.
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... abuffer |->A Buffer audio frames, and make them accessible to the filterchain.
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... buffer |->V Buffer video frames, and make them accessible to the filterchain.
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... abuffersink A->| Buffer audio frames, and make them available to the end of the filter graph.
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... buffersink V->| Buffer video frames, and make them available to the end of the filter graph.
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