Audio/video filters

The available options can depend on the version of the underlying encoding tools that Transloadit uses for the following Robots:

Transloadit recommends having: ffmpeg_stack: "v7" in these Robots’ Assembly Instructions. We are intimately aware of how important continuity is for our customers, so stack version upgrades are always opt-in. Stack versions are typically supported for many years before we start issuing deprecation warnings (for example, we had been supporting "v1.0.0" for 11 years before we deprecated it).

Page 3 of 3

`ffmpeg_stack`
Name	Description	Read	Write	Read	Write	Read	Write
		`v5`		`v6`		`v7`
`readvitc`	Read vertical interval timecode and write it to frame metadata.	Yes	Yes	Yes	Yes	Yes	Yes
`realtime`	Slow down filtering to match realtime.	Yes	Yes	Yes	Yes	Yes	Yes
`remap`	VVV->V Remap pixels.	No	No	No	No	No	No
`remap_opencl`	VVV->V Remap pixels using OpenCL.	No	No	No	No	No	No
`removegrain`	Remove grain.	Yes	Yes	Yes	Yes	Yes	Yes
`removelogo`	Remove a TV logo based on a mask image.	Yes	Yes	Yes	Yes	Yes	Yes
`repeatfields`	Hard repeat fields based on MPEG repeat field flag.	Yes	Yes	Yes	Yes	Yes	Yes
`replaygain`	ReplayGain scanner.	Yes	Yes	Yes	Yes	Yes	Yes
`reverse`	Reverse a clip.	Yes	Yes	Yes	Yes	Yes	Yes
`rgbashift`	Shift RGBA.	Yes	Yes	Yes	Yes	Yes	Yes
`rgbtestsrc`	Generate RGB test pattern.	Yes	Yes	Yes	Yes	Yes	Yes
`roberts`	Apply roberts cross operator.	Yes	Yes	Yes	Yes	Yes	Yes
`roberts_opencl`	Apply roberts operator	No	No	Yes	Yes	Yes	Yes
`rotate`	Rotate the input image.	Yes	Yes	Yes	Yes	Yes	Yes
`sab`	Apply shape adaptive blur.	Yes	Yes	Yes	Yes	Yes	Yes
`scale`	Scale the input video size and/or convert the image format.	Yes	Yes	Yes	Yes	Yes	Yes
`scale2ref`	Scale the input video size and/or convert the image format to the given reference.	Yes	Yes	Yes	Yes	Yes	Yes
`scale_cuda`	GPU accelerated video resizer	No	No	Yes	Yes	Yes	Yes
`scale_qsv`	QuickSync video scaling and format conversion	Yes	Yes	Yes	Yes	Yes	Yes
`scale_vaapi`	Scale to/from VAAPI surfaces.	Yes	Yes	Yes	Yes	Yes	Yes
`scale_vulkan`	Scale Vulkan frames	Yes	Yes	Yes	Yes	Yes	Yes
`scdet`	Detect video scene change	Yes	Yes	Yes	Yes	Yes	Yes
`scharr`	Apply scharr operator.	Yes	Yes	Yes	Yes	Yes	Yes
`scroll`	Scroll input video.	Yes	Yes	Yes	Yes	Yes	Yes
`segment`	Segment video stream.	Yes	No	Yes	No	Yes	No
`select`	Select video frames to pass in output.	Yes	No	Yes	No	Yes	No
`selectivecolor`	Apply CMYK adjustments to specific color ranges.	Yes	Yes	Yes	Yes	Yes	Yes
`sendcmd`	Send commands to filters.	Yes	Yes	Yes	Yes	Yes	Yes
`separatefields`	Split input video frames into fields.	Yes	Yes	Yes	Yes	Yes	Yes
`setdar`	Set the frame display aspect ratio.	Yes	Yes	Yes	Yes	Yes	Yes
`setfield`	Force field for the output video frame.	Yes	Yes	Yes	Yes	Yes	Yes
`setparams`	Force field, or color property for the output video frame.	Yes	Yes	Yes	Yes	Yes	Yes
`setpts`	Set PTS for the output video frame.	Yes	Yes	Yes	Yes	Yes	Yes
`setrange`	Force color range for the output video frame.	Yes	Yes	Yes	Yes	Yes	Yes
`setsar`	Set the pixel sample aspect ratio.	Yes	Yes	Yes	Yes	Yes	Yes
`settb`	Set timebase for the video output link.	Yes	Yes	Yes	Yes	Yes	Yes
`sharpness_vaapi`	VAAPI VPP for sharpness	Yes	Yes	Yes	Yes	Yes	Yes
`shear`	Shear transform the input image.	Yes	Yes	Yes	Yes	Yes	Yes
`showcqt`	Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output.	No	Yes	No	Yes	No	Yes
`showcwt`	Convert input audio to a CWT (Continuous Wavelet Transform) spectrum video output.	No	No	No	Yes	No	Yes
`showfreqs`	Convert input audio to a frequencies video output.	No	Yes	No	Yes	No	Yes
`showinfo`	Show textual information for each video frame.	Yes	Yes	Yes	Yes	Yes	Yes
`showpalette`	Display frame palette.	Yes	Yes	Yes	Yes	Yes	Yes
`showspatial`	Convert input audio to a spatial video output.	No	Yes	No	Yes	No	Yes
`showspectrum`	Convert input audio to a spectrum video output.	No	Yes	No	Yes	No	Yes
`showspectrumpic`	Convert input audio to a spectrum video output single picture.	No	Yes	No	Yes	No	Yes
`showvolume`	Convert input audio volume to video output.	No	Yes	No	Yes	No	Yes
`showwaves`	Convert input audio to a video output.	No	Yes	No	Yes	No	Yes
`showwavespic`	Convert input audio to a video output single picture.	No	Yes	No	Yes	No	Yes
`shuffleframes`	Shuffle video frames.	Yes	Yes	Yes	Yes	Yes	Yes
`shufflepixels`	Shuffle video pixels.	Yes	Yes	Yes	Yes	Yes	Yes
`shuffleplanes`	Shuffle video planes.	Yes	Yes	Yes	Yes	Yes	Yes
`sidechaincompress`	Sidechain compressor.	Yes	Yes	Yes	Yes	Yes	Yes
`sidechaingate`	Audio sidechain gate.	Yes	Yes	Yes	Yes	Yes	Yes
`sidedata`	Manipulate video frame side data.	Yes	Yes	Yes	Yes	Yes	Yes
`sierpinski`	Render a Sierpinski fractal.	Yes	Yes	Yes	Yes	Yes	Yes
`signalstats`	Generate statistics from video analysis.	Yes	Yes	Yes	Yes	Yes	Yes
`signature`	Calculate the MPEG-7 video signature	No	Yes	No	Yes	No	Yes
`silencedetect`	Detect silence.	Yes	Yes	Yes	Yes	Yes	Yes
`silenceremove`	Remove silence.	Yes	Yes	Yes	Yes	Yes	Yes
`sinc`	Generate a sinc kaiser-windowed low-pass, high-pass, band-pass, or band-reject FIR coefficients.	Yes	Yes	Yes	Yes	Yes	Yes
`sine`	Generate sine wave audio signal.	Yes	Yes	Yes	Yes	Yes	Yes
`siti`	Calculate spatial information (SI) and temporal information (TI).	No	No	Yes	Yes	Yes	Yes
`smartblur`	Blur the input video without impacting the outlines.	Yes	Yes	Yes	Yes	Yes	Yes
`smptebars`	Generate SMPTE color bars.	Yes	Yes	Yes	Yes	Yes	Yes
`smptehdbars`	Generate SMPTE HD color bars.	Yes	Yes	Yes	Yes	Yes	Yes
`sobel`	Apply sobel operator.	Yes	Yes	Yes	Yes	Yes	Yes
`sobel_opencl`	Apply sobel operator	No	No	Yes	Yes	Yes	Yes
`sofalizer`	SOFAlizer (Spatially Oriented Format for Acoustics).	Yes	Yes	Yes	Yes	Yes	Yes
`spectrumsynth`	Convert input spectrum videos to audio output.	Yes	Yes	Yes	Yes	Yes	Yes
`speechnorm`	Speech Normalizer.	Yes	Yes	Yes	Yes	Yes	Yes
`split`	Pass on the input to N video outputs.	Yes	No	Yes	No	Yes	No
`spp`	Apply a simple post processing filter.	Yes	Yes	Yes	Yes	Yes	Yes
`sr`	Apply DNN-based image super resolution to the input.	Yes	Yes	Yes	Yes	Yes	Yes
`ssim`	Calculate the SSIM between two video streams.	Yes	Yes	Yes	Yes	Yes	Yes
`ssim360`	Calculate the SSIM between two 360 video streams.	No	No	Yes	Yes	Yes	Yes
`stereo3d`	Convert video stereoscopic 3D view.	Yes	Yes	Yes	Yes	Yes	Yes
`stereotools`	Apply various stereo tools.	Yes	Yes	Yes	Yes	Yes	Yes
`stereowiden`	Apply stereo widening effect.	Yes	Yes	Yes	Yes	Yes	Yes
`streamselect`	Select video streams	No	No	No	No	No	No
`subtitles`	Render text subtitles onto input video using the libass library.	Yes	Yes	Yes	Yes	Yes	Yes
`super2xsai`	Scale the input by 2x using the Super2xSaI pixel art algorithm.	Yes	Yes	Yes	Yes	Yes	Yes
`superequalizer`	Apply 18 band equalization filter.	Yes	Yes	Yes	Yes	Yes	Yes
`surround`	Apply audio surround upmix filter.	Yes	Yes	Yes	Yes	Yes	Yes
`swaprect`	Swap 2 rectangular objects in video.	Yes	Yes	Yes	Yes	Yes	Yes
`swapuv`	Swap U and V components.	Yes	Yes	Yes	Yes	Yes	Yes
`tblend`	Blend successive frames.	Yes	Yes	Yes	Yes	Yes	Yes
`telecine`	Apply a telecine pattern.	Yes	Yes	Yes	Yes	Yes	Yes
`testsrc`	Generate test pattern.	Yes	Yes	Yes	Yes	Yes	Yes
`testsrc2`	Generate another test pattern.	Yes	Yes	Yes	Yes	Yes	Yes
`thistogram`	Compute and draw a temporal histogram.	Yes	Yes	Yes	Yes	Yes	Yes
`threshold`	VVVV->V Threshold first video stream using other video streams.	No	No	No	No	No	No
`thumbnail`	Select the most representative frame in a given sequence of consecutive frames.	Yes	Yes	Yes	Yes	Yes	Yes
`thumbnail_cuda`	Select the most representative frame in a given sequence of consecutive frames.	No	No	Yes	Yes	Yes	Yes
`tile`	Tile several successive frames together.	Yes	Yes	Yes	Yes	Yes	Yes
`tiltandshift`	Generate a tilt-and-shift'd video.	No	No	No	No	Yes	Yes
`tiltshelf`	Apply a tilt shelf filter.	No	No	Yes	Yes	Yes	Yes
`tinterlace`	Perform temporal field interlacing.	Yes	Yes	Yes	Yes	Yes	Yes
`tlut2`	Compute and apply a lookup table from two successive frames.	Yes	Yes	Yes	Yes	Yes	Yes
`tmedian`	Pick median pixels from successive frames.	Yes	Yes	Yes	Yes	Yes	Yes
`tmidequalizer`	Apply Temporal Midway Equalization.	Yes	Yes	Yes	Yes	Yes	Yes
`tmix`	Mix successive video frames.	Yes	Yes	Yes	Yes	Yes	Yes
`tonemap`	Conversion to/from different dynamic ranges.	Yes	Yes	Yes	Yes	Yes	Yes
`tonemap_opencl`	Perform HDR to SDR conversion with tonemapping.	No	No	Yes	Yes	Yes	Yes
`tonemap_vaapi`	VAAPI VPP for tone-mapping	Yes	Yes	Yes	Yes	Yes	Yes
`tpad`	Temporarily pad video frames.	Yes	Yes	Yes	Yes	Yes	Yes
`transpose`	Transpose input video.	Yes	Yes	Yes	Yes	Yes	Yes
`transpose_opencl`	Transpose input video	No	No	Yes	Yes	Yes	Yes
`transpose_vaapi`	VAAPI VPP for transpose	Yes	Yes	Yes	Yes	Yes	Yes
`transpose_vulkan`	Transpose Vulkan Filter	Yes	Yes	Yes	Yes	Yes	Yes
`treble`	Boost or cut upper frequencies.	Yes	Yes	Yes	Yes	Yes	Yes
`tremolo`	Apply tremolo effect.	Yes	Yes	Yes	Yes	Yes	Yes
`trim`	Pick one continuous section from the input, drop the rest.	Yes	Yes	Yes	Yes	Yes	Yes
`unpremultiply`	UnPreMultiply first stream with first plane of second stream.	No	Yes	No	Yes	No	Yes
`unsharp`	Sharpen or blur the input video.	Yes	Yes	Yes	Yes	Yes	Yes
`unsharp_opencl`	Apply unsharp mask to input video	No	No	Yes	Yes	Yes	Yes
`untile`	Untile a frame into a sequence of frames.	Yes	Yes	Yes	Yes	Yes	Yes
`uspp`	Apply Ultra Simple / Slow Post-processing filter.	No	No	Yes	Yes	Yes	Yes
`v360`	Convert 360 projection of video.	Yes	Yes	Yes	Yes	Yes	Yes
`vaguedenoiser`	Apply a Wavelet based Denoiser.	Yes	Yes	Yes	Yes	Yes	Yes
`varblur`	Apply Variable Blur filter.	Yes	Yes	Yes	Yes	Yes	Yes
`vectorscope`	Video vectorscope.	Yes	Yes	Yes	Yes	Yes	Yes
`vflip`	Flip the input video vertically.	Yes	Yes	Yes	Yes	Yes	Yes
`vflip_vulkan`	Vertically flip the input video in Vulkan	Yes	Yes	Yes	Yes	Yes	Yes
`vfrdet`	Variable frame rate detect filter.	Yes	Yes	Yes	Yes	Yes	Yes
`vibrance`	Boost or alter saturation.	Yes	Yes	Yes	Yes	Yes	Yes
`vibrato`	Apply vibrato effect.	Yes	Yes	Yes	Yes	Yes	Yes
`vidstabdetect`	Extract relative transformations, pass 1 of 2 for stabilization (see vidstabtransform for pass 2).	Yes	Yes	Yes	Yes	Yes	Yes
`vidstabtransform`	Transform the frames, pass 2 of 2 for stabilization (see vidstabdetect for pass 1).	Yes	Yes	Yes	Yes	Yes	Yes
`vif`	Calculate the VIF between two video streams.	Yes	Yes	Yes	Yes	Yes	Yes
`vignette`	Make or reverse a vignette effect.	Yes	Yes	Yes	Yes	Yes	Yes
`virtualbass`	Audio Virtual Bass.	No	No	Yes	Yes	Yes	Yes
`vmafmotion`	Calculate the VMAF Motion score.	Yes	Yes	Yes	Yes	Yes	Yes
`volume`	Change input volume.	Yes	Yes	Yes	Yes	Yes	Yes
`volumedetect`	Detect audio volume.	Yes	Yes	Yes	Yes	Yes	Yes
`vpp_qsv`	Quick Sync Video VPP.	Yes	Yes	Yes	Yes	Yes	Yes
`vstack`	Stack video inputs vertically.	No	Yes	No	Yes	No	Yes
`vstack_qsv`	"Quick Sync Video" vstack	No	No	No	Yes	No	Yes
`vstack_vaapi`	"VA-API" vstack	No	No	No	Yes	No	Yes
`w3fdif`	Apply Martin Weston three field deinterlace.	Yes	Yes	Yes	Yes	Yes	Yes
`waveform`	Video waveform monitor.	Yes	Yes	Yes	Yes	Yes	Yes
`weave`	Weave input video fields into frames.	Yes	Yes	Yes	Yes	Yes	Yes
`xbr`	Scale the input using xBR algorithm.	Yes	Yes	Yes	Yes	Yes	Yes
`xcorrelate`	Cross-correlate first video stream with second video stream.	Yes	Yes	Yes	Yes	Yes	Yes
`xfade`	Cross fade one video with another video.	Yes	Yes	Yes	Yes	Yes	Yes
`xfade_opencl`	Cross fade one video with another video.	No	No	Yes	Yes	Yes	Yes
`xfade_vulkan`	Cross fade one video with another video.	No	No	Yes	Yes	Yes	Yes
`xmedian`	Pick median pixels from several video inputs.	No	Yes	No	Yes	No	Yes
`xstack`	Stack video inputs into custom layout.	No	Yes	No	Yes	No	Yes
`xstack_qsv`	"Quick Sync Video" xstack	No	No	No	Yes	No	Yes
`xstack_vaapi`	"VA-API" xstack	No	No	No	Yes	No	Yes
`yadif`	Deinterlace the input image.	Yes	Yes	Yes	Yes	Yes	Yes
`yadif_cuda`	Deinterlace CUDA frames	No	No	Yes	Yes	Yes	Yes
`yaepblur`	Yet another edge preserving blur filter.	Yes	Yes	Yes	Yes	Yes	Yes
`yuvtestsrc`	Generate YUV test pattern.	Yes	Yes	Yes	Yes	Yes	Yes
`zmq`	Receive commands through ZMQ and broker them to filters.	Yes	Yes	Yes	Yes	Yes	Yes
`zoneplate`	Generate zone-plate.	No	No	Yes	Yes	Yes	Yes
`zoompan`	Apply Zoom & Pan effect.	Yes	Yes	Yes	Yes	Yes	Yes
`zscale`	Apply resizing, colorspace and bit depth conversion.	Yes	Yes	Yes	Yes	Yes	Yes