Audio/video formats

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

Try a common video conversion

Test the supported formats in our live WebM to MP4 converter.

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 2 of 3

`ffmpeg_stack`
Name	Description	Read	Write	Read	Write	Read	Write
		`v5`		`v6`		`v7`
`lvf`	LVF	Yes	No	Yes	No	Yes	No
`lxf`	VR native stream (LXF)	Yes	No	Yes	No	Yes	No
`m4v`	raw MPEG-4 video	Yes	Yes	Yes	Yes	Yes	Yes
`matroska`	Matroska	No	Yes	No	Yes	No	Yes
`matroska,webm`	Matroska / WebM	Yes	No	Yes	No	Yes	No
`mca`	MCA Audio Format	Yes	No	Yes	No	Yes	No
`mcc`	MacCaption	Yes	No	Yes	No	Yes	No
`md5`	MD5 testing	No	Yes	No	Yes	No	Yes
`mgsts`	Metal Gear Solid: The Twin Snakes	Yes	No	Yes	No	Yes	No
`microdvd`	MicroDVD subtitle format	Yes	Yes	Yes	Yes	Yes	Yes
`mjpeg`	raw MJPEG video	Yes	Yes	Yes	Yes	Yes	Yes
`mjpeg_2000`	raw MJPEG 2000 video	Yes	No	Yes	No	Yes	No
`mkvtimestamp_v2`	extract pts as timecode v2 format, as defined by mkvtoolnix	No	Yes	No	Yes	No	Yes
`mlp`	raw MLP	Yes	Yes	Yes	Yes	Yes	Yes
`mlv`	Magic Lantern Video (MLV)	Yes	No	Yes	No	Yes	No
`mm`	American Laser Games MM	Yes	No	Yes	No	Yes	No
`mmf`	Yamaha SMAF	Yes	Yes	Yes	Yes	Yes	Yes
`mods`	MobiClip MODS	Yes	No	Yes	No	Yes	No
`moflex`	MobiClip MOFLEX	Yes	No	Yes	No	Yes	No
`mov`	QuickTime / MOV	No	Yes	No	Yes	No	Yes
`mov,mp4,m4a,3gp,3g2,mj2`	QuickTime / MOV	Yes	No	Yes	No	Yes	No
`mp2`	MP2 (MPEG audio layer 2)	No	Yes	No	Yes	No	Yes
`mp3`	MP3 (MPEG audio layer 3)	Yes	Yes	Yes	Yes	Yes	Yes
`mp4`	MP4 (MPEG-4 Part 14)	No	Yes	No	Yes	No	Yes
`mpc`	Musepack	Yes	No	Yes	No	Yes	No
`mpc8`	Musepack SV8	Yes	No	Yes	No	Yes	No
`mpeg`	MPEG-1 Systems / MPEG program stream	Yes	Yes	Yes	Yes	Yes	Yes
`mpeg1video`	raw MPEG-1 video	No	Yes	No	Yes	No	Yes
`mpeg2video`	raw MPEG-2 video	No	Yes	No	Yes	No	Yes
`mpegts`	MPEG-TS (MPEG-2 Transport Stream)	Yes	Yes	Yes	Yes	Yes	Yes
`mpegtsraw`	raw MPEG-TS (MPEG-2 Transport Stream)	Yes	No	Yes	No	Yes	No
`mpegvideo`	raw MPEG video	Yes	No	Yes	No	Yes	No
`mpjpeg`	MIME multipart JPEG	Yes	Yes	Yes	Yes	Yes	Yes
`mpl2`	MPL2 subtitles	Yes	No	Yes	No	Yes	No
`mpsub`	MPlayer subtitles	Yes	No	Yes	No	Yes	No
`msf`	Sony PS3 MSF	Yes	No	Yes	No	Yes	No
`msnwctcp`	MSN TCP Webcam stream	Yes	No	Yes	No	Yes	No
`msp`	Microsoft Paint (MSP))	Yes	No	Yes	No	Yes	No
`mtaf`	Konami PS2 MTAF	Yes	No	Yes	No	Yes	No
`mtv`	MTV	Yes	No	Yes	No	Yes	No
`mulaw`	PCM mu-law	Yes	Yes	Yes	Yes	Yes	Yes
`musx`	Eurocom MUSX	Yes	No	Yes	No	Yes	No
`mv`	Silicon Graphics Movie	Yes	No	Yes	No	Yes	No
`mvi`	Motion Pixels MVI	Yes	No	Yes	No	Yes	No
`mxf`	MXF (Material eXchange Format)	Yes	Yes	Yes	Yes	Yes	Yes
`mxf_d10`	MXF (Material eXchange Format) D-10 Mapping	No	Yes	No	Yes	No	Yes
`mxf_opatom`	MXF (Material eXchange Format) Operational Pattern Atom	No	Yes	No	Yes	No	Yes
`mxg`	MxPEG clip	Yes	No	Yes	No	Yes	No
`nc`	NC camera feed	Yes	No	Yes	No	Yes	No
`nistsphere`	NIST SPeech HEader REsources	Yes	No	Yes	No	Yes	No
`nsp`	Computerized Speech Lab NSP	Yes	No	Yes	No	Yes	No
`nsv`	Nullsoft Streaming Video	Yes	No	Yes	No	Yes	No
`null`	raw null video	No	Yes	No	Yes	No	Yes
`nut`	NUT	Yes	Yes	Yes	Yes	Yes	Yes
`nuv`	NuppelVideo	Yes	No	Yes	No	Yes	No
`obu`	AV1 low overhead OBU	Yes	Yes	Yes	Yes	Yes	Yes
`oga`	Ogg Audio	No	Yes	No	Yes	No	Yes
`ogg`	Ogg	Yes	Yes	Yes	Yes	Yes	Yes
`ogv`	Ogg Video	No	Yes	No	Yes	No	Yes
`oma`	Sony OpenMG audio	Yes	Yes	Yes	Yes	Yes	Yes
`openal`	OpenAL audio capture device	Yes	No	Yes	No	No	No
`opengl`	OpenGL output	No	Yes	No	Yes	No	No
`opus`	Ogg Opus	No	Yes	No	Yes	No	Yes
`osq`	raw OSQ	No	No	Yes	No	Yes	No
`oss`	OSS (Open Sound System) playback	Yes	Yes	Yes	Yes	No	No
`paf`	Amazing Studio Packed Animation File	Yes	No	Yes	No	Yes	No
`pam_pipe`	piped pam sequence	Yes	No	Yes	No	Yes	No
`pbm_pipe`	piped pbm sequence	Yes	No	Yes	No	Yes	No
`pcx_pipe`	piped pcx sequence	Yes	No	Yes	No	Yes	No
`pdv`	PlayDate Video	No	No	Yes	No	Yes	No
`pfm_pipe`	piped pfm sequence	No	No	Yes	No	Yes	No
`pgm_pipe`	piped pgm sequence	Yes	No	Yes	No	Yes	No
`pgmyuv_pipe`	piped pgmyuv sequence	Yes	No	Yes	No	Yes	No
`pgx_pipe`	piped pgx sequence	Yes	No	Yes	No	Yes	No
`phm_pipe`	piped phm sequence	No	No	Yes	No	Yes	No
`photocd_pipe`	piped photocd sequence	Yes	No	Yes	No	Yes	No
`pictor_pipe`	piped pictor sequence	Yes	No	Yes	No	Yes	No
`pjs`	PJS (Phoenix Japanimation Society) subtitles	Yes	No	Yes	No	Yes	No
`pmp`	Playstation Portable PMP	Yes	No	Yes	No	Yes	No
`png_pipe`	piped png sequence	Yes	No	Yes	No	Yes	No
`pp_bnk`	Pro Pinball Series Soundbank	Yes	No	Yes	No	Yes	No
`ppm_pipe`	piped ppm sequence	Yes	No	Yes	No	Yes	No
`psd_pipe`	piped psd sequence	Yes	No	Yes	No	Yes	No
`psp`	PSP MP4 (MPEG-4 Part 14)	No	Yes	No	Yes	No	Yes
`psxstr`	Sony Playstation STR	Yes	No	Yes	No	Yes	No
`pulse`	Pulse audio output	Yes	Yes	Yes	Yes	No	No
`pva`	TechnoTrend PVA	Yes	No	Yes	No	Yes	No
`pvf`	PVF (Portable Voice Format)	Yes	No	Yes	No	Yes	No
`qcp`	QCP	Yes	No	Yes	No	Yes	No
`qdraw_pipe`	piped qdraw sequence	Yes	No	Yes	No	Yes	No
`qoa`	QOA	No	No	No	No	Yes	No
`qoi_pipe`	piped qoi sequence	No	No	Yes	No	Yes	No
`r3d`	REDCODE R3D	Yes	No	Yes	No	Yes	No
`rawvideo`	raw video	Yes	Yes	Yes	Yes	Yes	Yes
`rcwt`	RCWT (Raw Captions With Time)	No	No	No	No	No	Yes
`realtext`	RealText subtitle format	Yes	No	Yes	No	Yes	No
`redspark`	RedSpark	Yes	No	Yes	No	Yes	No
`rka`	RKA (RK Audio)	No	No	Yes	No	Yes	No
`rl2`	RL2	Yes	No	Yes	No	Yes	No
`rm`	RealMedia	Yes	Yes	Yes	Yes	Yes	Yes
`roq`	raw id RoQ	Yes	Yes	Yes	Yes	Yes	Yes
`rpl`	RPL / ARMovie	Yes	No	Yes	No	Yes	No
`rsd`	GameCube RSD	Yes	No	Yes	No	Yes	No
`rso`	Lego Mindstorms RSO	Yes	Yes	Yes	Yes	Yes	Yes
`rtp`	RTP output	Yes	Yes	Yes	Yes	Yes	Yes
`rtp_mpegts`	RTP/mpegts output format	No	Yes	No	Yes	No	Yes
`rtsp`	RTSP output	Yes	Yes	Yes	Yes	Yes	Yes
`s16be`	PCM signed 16-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s16le`	PCM signed 16-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s24be`	PCM signed 24-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s24le`	PCM signed 24-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s32be`	PCM signed 32-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s32le`	PCM signed 32-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`s337m`	SMPTE 337M	Yes	No	Yes	No	Yes	No
`s8`	PCM signed 8-bit	Yes	Yes	Yes	Yes	Yes	Yes
`sami`	SAMI subtitle format	Yes	No	Yes	No	Yes	No
`sap`	SAP output	Yes	Yes	Yes	Yes	Yes	Yes
`sbc`	raw SBC	Yes	Yes	Yes	Yes	Yes	Yes
`sbg`	SBaGen binaural beats script	Yes	No	Yes	No	Yes	No
`scc`	Scenarist Closed Captions	Yes	Yes	Yes	Yes	Yes	Yes
`scd`	Square Enix SCD	Yes	No	Yes	No	Yes	No
`sdl,sdl2`	SDL2 output device	No	Yes	No	Yes	No	No
`sdns`	Xbox SDNS	No	No	Yes	No	Yes	No
`sdp`	SDP	Yes	No	Yes	No	Yes	No
`sdr2`	SDR2	Yes	No	Yes	No	Yes	No
`sds`	MIDI Sample Dump Standard	Yes	No	Yes	No	Yes	No
`sdx`	Sample Dump eXchange	Yes	No	Yes	No	Yes	No
`segment`	segment	No	Yes	No	Yes	No	Yes
`ser`	SER (Simple uncompressed video format for astronomical capturing)	Yes	No	Yes	No	Yes	No
`sga`	Digital Pictures SGA	Yes	No	Yes	No	Yes	No
`sgi_pipe`	piped sgi sequence	Yes	No	Yes	No	Yes	No
`shn`	raw Shorten	Yes	No	Yes	No	Yes	No
`siff`	Beam Software SIFF	Yes	No	Yes	No	Yes	No
`simbiosis_imx`	Simbiosis Interactive IMX	Yes	No	Yes	No	Yes	No
`sln`	Asterisk raw pcm	Yes	No	Yes	No	Yes	No
`smjpeg`	Loki SDL MJPEG	Yes	Yes	Yes	Yes	Yes	Yes
`smk`	Smacker	Yes	No	Yes	No	Yes	No
`smoothstreaming`	Smooth Streaming Muxer	No	Yes	No	Yes	No	Yes
`smush`	LucasArts Smush	Yes	No	Yes	No	Yes	No
`sol`	Sierra SOL	Yes	No	Yes	No	Yes	No
`sox`	SoX native	Yes	Yes	Yes	Yes	Yes	Yes
`spdif`	IEC 61937 (used on S/PDIF - IEC958)	Yes	Yes	Yes	Yes	Yes	Yes
`spx`	Ogg Speex	No	Yes	No	Yes	No	Yes
`srt`	SubRip subtitle	Yes	Yes	Yes	Yes	Yes	Yes
`stl`	Spruce subtitle format	Yes	No	Yes	No	Yes	No
`stream_segment,ssegment`	streaming segment muxer	No	Yes	No	Yes	No	Yes
`streamhash`	Per-stream hash testing	No	Yes	No	Yes	No	Yes
`subviewer`	SubViewer subtitle format	Yes	No	Yes	No	Yes	No
`subviewer1`	SubViewer v1 subtitle format	Yes	No	Yes	No	Yes	No
`sunrast_pipe`	piped sunrast sequence	Yes	No	Yes	No	Yes	No
`sup`	raw HDMV Presentation Graphic Stream subtitles	Yes	Yes	Yes	Yes	Yes	Yes
`svag`	Konami PS2 SVAG	Yes	No	Yes	No	Yes	No
`svcd`	MPEG-2 PS (SVCD)	No	Yes	No	Yes	No	Yes
`svg_pipe`	piped svg sequence	Yes	No	Yes	No	Yes	No
`svs`	Square SVS	Yes	No	Yes	No	Yes	No
`swf`	SWF (ShockWave Flash)	Yes	Yes	Yes	Yes	Yes	Yes
`tak`	raw TAK	Yes	No	Yes	No	Yes	No
`tedcaptions`	TED Talks captions	Yes	No	Yes	No	Yes	No
`tee`	Multiple muxer tee	No	Yes	No	Yes	No	Yes
`thp`	THP	Yes	No	Yes	No	Yes	No
`tiertexseq`	Tiertex Limited SEQ	Yes	No	Yes	No	Yes	No
`tiff_pipe`	piped tiff sequence	Yes	No	Yes	No	Yes	No
`tmv`	8088flex TMV	Yes	No	Yes	No	Yes	No
`truehd`	raw TrueHD	Yes	Yes	Yes	Yes	Yes	Yes
`tta`	TTA (True Audio)	Yes	Yes	Yes	Yes	Yes	Yes
`ttml`	TTML subtitle	No	Yes	No	Yes	No	Yes
`tty`	Tele-typewriter	Yes	No	Yes	No	Yes	No
`txd`	Renderware TeXture Dictionary	Yes	No	Yes	No	Yes	No
`ty`	TiVo TY Stream	Yes	No	Yes	No	Yes	No
`u16be`	PCM unsigned 16-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u16le`	PCM unsigned 16-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u24be`	PCM unsigned 24-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u24le`	PCM unsigned 24-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u32be`	PCM unsigned 32-bit big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u32le`	PCM unsigned 32-bit little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`u8`	PCM unsigned 8-bit	Yes	Yes	Yes	Yes	Yes	Yes
`uncodedframecrc`	uncoded framecrc testing	No	Yes	No	Yes	No	Yes
`usm`	CRI USM	No	No	Yes	No	Yes	No
`v210`	Uncompressed 4:2:2 10-bit	Yes	No	Yes	No	Yes	No
`v210x`	Uncompressed 4:2:2 10-bit	Yes	No	Yes	No	Yes	No
`vag`	Sony PS2 VAG	Yes	No	Yes	No	Yes	No
`vbn_pipe`	piped vbn sequence	No	No	Yes	No	Yes	No
`vc1`	raw VC-1 video	Yes	Yes	Yes	Yes	Yes	Yes
`vc1test`	VC-1 test bitstream	Yes	Yes	Yes	Yes	Yes	Yes
`vcd`	MPEG-1 Systems / MPEG program stream (VCD)	No	Yes	No	Yes	No	Yes
`vidc`	PCM Archimedes VIDC	Yes	Yes	Yes	Yes	Yes	Yes
`video4linux2,v4l2`	Video4Linux2 output device	Yes	Yes	Yes	Yes	No	No
`vividas`	Vividas VIV	Yes	No	Yes	No	Yes	No
`vivo`	Vivo	Yes	No	Yes	No	Yes	No
`vmd`	Sierra VMD	Yes	No	Yes	No	Yes	No
`vob`	MPEG-2 PS (VOB)	No	Yes	No	Yes	No	Yes
`vobsub`	VobSub subtitle format	Yes	No	Yes	No	Yes	No
`voc`	Creative Voice	Yes	Yes	Yes	Yes	Yes	Yes
`vpk`	Sony PS2 VPK	Yes	No	Yes	No	Yes	No
`vplayer`	VPlayer subtitles	Yes	No	Yes	No	Yes	No
`vqf`	Nippon Telegraph and Telephone Corporation (NTT) TwinVQ	Yes	No	Yes	No	Yes	No
`vvc`	raw H.266/VVC video	No	No	Yes	Yes	Yes	Yes
`w64`	Sony Wave64	Yes	Yes	Yes	Yes	Yes	Yes
`wady`	Marble WADY	No	No	Yes	No	Yes	No
`wav`	WAV / WAVE (Waveform Audio)	Yes	Yes	Yes	Yes	Yes	Yes