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).

`ffmpeg_stack`
Name	Description	Read	Write	Read	Write	Read	Write
		`v5`		`v6`		`v7`
`3dostr`	3DO STR	Yes	No	Yes	No	Yes	No
`3g2`	3GP2 (3GPP2 file format)	No	Yes	No	Yes	No	Yes
`3gp`	3GP (3GPP file format)	No	Yes	No	Yes	No	Yes
`4xm`	4X Technologies	Yes	No	Yes	No	Yes	No
`a64`	a64 - video for Commodore 64	No	Yes	No	Yes	No	Yes
`aa`	Audible AA format files	Yes	No	Yes	No	Yes	No
`aac`	raw ADTS AAC (Advanced Audio Coding)	Yes	No	Yes	No	Yes	No
`aax`	CRI AAX	Yes	No	Yes	No	Yes	No
`ac3`	raw AC-3	Yes	Yes	Yes	Yes	Yes	Yes
`ac4`	raw AC-4	No	No	Yes	Yes	Yes	Yes
`ace`	tri-Ace Audio Container	Yes	No	Yes	No	Yes	No
`acm`	Interplay ACM	Yes	No	Yes	No	Yes	No
`act`	ACT Voice file format	Yes	No	Yes	No	Yes	No
`adf`	Artworx Data Format	Yes	No	Yes	No	Yes	No
`adp`	ADP	Yes	No	Yes	No	Yes	No
`ads`	Sony PS2 ADS	Yes	No	Yes	No	Yes	No
`adts`	ADTS AAC (Advanced Audio Coding)	No	Yes	No	Yes	No	Yes
`adx`	CRI ADX	Yes	Yes	Yes	Yes	Yes	Yes
`aea`	MD STUDIO audio	Yes	No	Yes	No	Yes	Yes
`afc`	AFC	Yes	No	Yes	No	Yes	No
`aiff`	Audio IFF	Yes	Yes	Yes	Yes	Yes	Yes
`aix`	CRI AIX	Yes	No	Yes	No	Yes	No
`alaw`	PCM A-law	Yes	Yes	Yes	Yes	Yes	Yes
`alias_pix`	Alias/Wavefront PIX image	Yes	No	Yes	No	Yes	No
`alp`	LEGO Racers ALP	Yes	Yes	Yes	Yes	Yes	Yes
`alsa`	ALSA audio output	Yes	Yes	Yes	Yes	No	No
`amr`	3GPP AMR	Yes	Yes	Yes	Yes	Yes	Yes
`amrnb`	raw AMR-NB	Yes	No	Yes	No	Yes	No
`amrwb`	raw AMR-WB	Yes	No	Yes	No	Yes	No
`amv`	AMV	No	Yes	No	Yes	No	Yes
`anm`	Deluxe Paint Animation	Yes	No	Yes	No	Yes	No
`apac`	raw APAC	No	No	Yes	No	Yes	No
`apc`	CRYO APC	Yes	No	Yes	No	Yes	No
`ape`	Monkey's Audio	Yes	No	Yes	No	Yes	No
`apm`	Ubisoft Rayman 2 APM	Yes	Yes	Yes	Yes	Yes	Yes
`apng`	Animated Portable Network Graphics	Yes	Yes	Yes	Yes	Yes	Yes
`aptx`	raw aptX (Audio Processing Technology for Bluetooth)	Yes	Yes	Yes	Yes	Yes	Yes
`aptx_hd`	raw aptX HD (Audio Processing Technology for Bluetooth)	Yes	Yes	Yes	Yes	Yes	Yes
`aqtitle`	AQTitle subtitles	Yes	No	Yes	No	Yes	No
`argo_asf`	Argonaut Games ASF	Yes	Yes	Yes	Yes	Yes	Yes
`argo_brp`	Argonaut Games BRP	Yes	No	Yes	No	Yes	No
`argo_cvg`	Argonaut Games CVG	Yes	Yes	Yes	Yes	Yes	Yes
`asf`	ASF (Advanced / Active Streaming Format)	Yes	Yes	Yes	Yes	Yes	Yes
`asf_o`	ASF (Advanced / Active Streaming Format)	Yes	No	Yes	No	Yes	No
`asf_stream`	ASF (Advanced / Active Streaming Format)	No	Yes	No	Yes	No	Yes
`ass`	SSA (SubStation Alpha) subtitle	Yes	Yes	Yes	Yes	Yes	Yes
`ast`	AST (Audio Stream)	Yes	Yes	Yes	Yes	Yes	Yes
`au`	Sun AU	Yes	Yes	Yes	Yes	Yes	Yes
`av1`	AV1 Annex B	Yes	No	Yes	No	Yes	No
`avi`	AVI (Audio Video Interleaved)	Yes	Yes	Yes	Yes	Yes	Yes
`avif`	AVIF	No	No	No	Yes	No	Yes
`avisynth`	AviSynth script	No	No	Yes	No	Yes	No
`avm2`	SWF (ShockWave Flash) (AVM2)	No	Yes	No	Yes	No	Yes
`avr`	AVR (Audio Visual Research)	Yes	No	Yes	No	Yes	No
`avs`	Argonaut Games Creature Shock	Yes	No	Yes	No	Yes	No
`avs2`	raw AVS2-P2/IEEE1857.4 video	Yes	Yes	Yes	Yes	Yes	Yes
`avs3`	AVS3-P2/IEEE1857.10	Yes	Yes	Yes	Yes	Yes	Yes
`bethsoftvid`	Bethesda Softworks VID	Yes	No	Yes	No	Yes	No
`bfi`	Brute Force & Ignorance	Yes	No	Yes	No	Yes	No
`bfstm`	BFSTM (Binary Cafe Stream)	Yes	No	Yes	No	Yes	No
`bin`	Binary text	Yes	No	Yes	No	Yes	No
`bink`	Bink	Yes	No	Yes	No	Yes	No
`binka`	Bink Audio	Yes	No	Yes	No	Yes	No
`bit`	G.729 BIT file format	Yes	Yes	Yes	Yes	Yes	Yes
`bitpacked`	Bitpacked	Yes	No	Yes	No	Yes	No
`bmp_pipe`	piped bmp sequence	Yes	No	Yes	No	Yes	No
`bmv`	Discworld II BMV	Yes	No	Yes	No	Yes	No
`boa`	Black Ops Audio	Yes	No	Yes	No	Yes	No
`bonk`	raw Bonk	No	No	Yes	No	Yes	No
`brender_pix`	BRender PIX image	Yes	No	Yes	No	Yes	No
`brstm`	BRSTM (Binary Revolution Stream)	Yes	No	Yes	No	Yes	No
`c93`	Interplay C93	Yes	No	Yes	No	Yes	No
`caca`	caca (color ASCII art) output device	No	No	No	Yes	No	No
`caf`	Apple CAF (Core Audio Format)	Yes	Yes	Yes	Yes	Yes	Yes
`cavsvideo`	raw Chinese AVS (Audio Video Standard) video	Yes	Yes	Yes	Yes	Yes	Yes
`cdg`	CD Graphics	Yes	No	Yes	No	Yes	No
`cdxl`	Commodore CDXL video	Yes	No	Yes	No	Yes	No
`chromaprint`	Chromaprint	No	No	No	Yes	No	Yes
`cine`	Phantom Cine	Yes	No	Yes	No	Yes	No
`codec2`	codec2 .c2 muxer	Yes	Yes	Yes	Yes	Yes	Yes
`codec2raw`	raw codec2 muxer	Yes	Yes	Yes	Yes	Yes	Yes
`concat`	Virtual concatenation script	Yes	No	Yes	No	Yes	No
`crc`	CRC testing	No	Yes	No	Yes	No	Yes
`cri_pipe`	piped cri sequence	Yes	No	Yes	No	Yes	No
`dash`	DASH Muxer	Yes	Yes	Yes	Yes	Yes	Yes
`data`	raw data	Yes	Yes	Yes	Yes	Yes	Yes
`daud`	D-Cinema audio	Yes	Yes	Yes	Yes	Yes	Yes
`dcstr`	Sega DC STR	Yes	No	Yes	No	Yes	No
`dds_pipe`	piped dds sequence	Yes	No	Yes	No	Yes	No
`derf`	Xilam DERF	Yes	No	Yes	No	Yes	No
`dfa`	Chronomaster DFA	Yes	No	Yes	No	Yes	No
`dfpwm`	raw DFPWM1a	No	No	Yes	Yes	Yes	Yes
`dhav`	Video DAV	Yes	No	Yes	No	Yes	No
`dirac`	raw Dirac	Yes	Yes	Yes	Yes	Yes	Yes
`dnxhd`	raw DNxHD (SMPTE VC-3)	Yes	Yes	Yes	Yes	Yes	Yes
`dpx_pipe`	piped dpx sequence	Yes	No	Yes	No	Yes	No
`dsf`	DSD Stream File (DSF)	Yes	No	Yes	No	Yes	No
`dsicin`	Delphine Software International CIN	Yes	No	Yes	No	Yes	No
`dss`	Digital Speech Standard (DSS)	Yes	No	Yes	No	Yes	No
`dts`	raw DTS	Yes	Yes	Yes	Yes	Yes	Yes
`dtshd`	raw DTS-HD	Yes	No	Yes	No	Yes	No
`dv`	DV (Digital Video)	Yes	Yes	Yes	Yes	Yes	Yes
`dvbsub`	raw dvbsub	Yes	No	Yes	No	Yes	No
`dvbtxt`	dvbtxt	Yes	No	Yes	No	Yes	No
`dvd`	MPEG-2 PS (DVD VOB)	No	Yes	No	Yes	No	Yes
`dvdvideo`	DVD-Video	No	No	No	No	Yes	No
`dxa`	DXA	Yes	No	Yes	No	Yes	No
`ea`	Electronic Arts Multimedia	Yes	No	Yes	No	Yes	No
`ea_cdata`	Electronic Arts cdata	Yes	No	Yes	No	Yes	No
`eac3`	raw E-AC-3	Yes	Yes	Yes	Yes	Yes	Yes
`epaf`	Ensoniq Paris Audio File	Yes	No	Yes	No	Yes	No
`evc`	raw EVC video	No	No	Yes	Yes	Yes	Yes
`exr_pipe`	piped exr sequence	Yes	No	Yes	No	Yes	No
`f32be`	PCM 32-bit floating-point big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`f32le`	PCM 32-bit floating-point little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`f4v`	F4V Adobe Flash Video	No	Yes	No	Yes	No	Yes
`f64be`	PCM 64-bit floating-point big-endian	Yes	Yes	Yes	Yes	Yes	Yes
`f64le`	PCM 64-bit floating-point little-endian	Yes	Yes	Yes	Yes	Yes	Yes
`fbdev`	Linux framebuffer	Yes	Yes	Yes	Yes	No	No
`ffmetadata`	FFmpeg metadata in text	Yes	Yes	Yes	Yes	Yes	Yes
`fifo`	FIFO queue pseudo-muxer	No	Yes	No	Yes	No	Yes
`fifo_test`	Fifo test muxer	No	Yes	No	Yes	No	No
`film_cpk`	Sega FILM / CPK	Yes	Yes	Yes	Yes	Yes	Yes
`filmstrip`	Adobe Filmstrip	Yes	Yes	Yes	Yes	Yes	Yes
`fits`	Flexible Image Transport System	Yes	Yes	Yes	Yes	Yes	Yes
`flac`	raw FLAC	Yes	Yes	Yes	Yes	Yes	Yes
`flic`	FLI/FLC/FLX animation	Yes	No	Yes	No	Yes	No
`flv`	FLV (Flash Video)	Yes	Yes	Yes	Yes	Yes	Yes
`framecrc`	framecrc testing	No	Yes	No	Yes	No	Yes
`framehash`	Per-frame hash testing	No	Yes	No	Yes	No	Yes
`framemd5`	Per-frame MD5 testing	No	Yes	No	Yes	No	Yes
`frm`	Megalux Frame	Yes	No	Yes	No	Yes	No
`fsb`	FMOD Sample Bank	Yes	No	Yes	No	Yes	No
`fwse`	Capcom's MT Framework sound	Yes	No	Yes	No	Yes	No
`g722`	raw G.722	Yes	Yes	Yes	Yes	Yes	Yes
`g723_1`	raw G.723.1	Yes	Yes	Yes	Yes	Yes	Yes
`g726`	raw big-endian G.726 ("left-justified")	Yes	Yes	Yes	Yes	Yes	Yes
`g726le`	raw little-endian G.726 ("right-justified")	Yes	Yes	Yes	Yes	Yes	Yes
`g729`	G.729 raw format demuxer	Yes	No	Yes	No	Yes	No
`gdv`	Gremlin Digital Video	Yes	No	Yes	No	Yes	No
`gem_pipe`	piped gem sequence	Yes	No	Yes	No	Yes	No
`genh`	GENeric Header	Yes	No	Yes	No	Yes	No
`gif`	CompuServe Graphics Interchange Format (GIF)	Yes	Yes	Yes	Yes	Yes	Yes
`gif_pipe`	piped gif sequence	Yes	No	Yes	No	Yes	No
`gsm`	raw GSM	Yes	Yes	Yes	Yes	Yes	Yes
`gxf`	GXF (General eXchange Format)	Yes	Yes	Yes	Yes	Yes	Yes
`h261`	raw H.261	Yes	Yes	Yes	Yes	Yes	Yes
`h263`	raw H.263	Yes	Yes	Yes	Yes	Yes	Yes
`h264`	raw H.264 video	Yes	Yes	Yes	Yes	Yes	Yes
`hash`	Hash testing	No	Yes	No	Yes	No	Yes
`hca`	CRI HCA	Yes	No	Yes	No	Yes	No
`hcom`	Macintosh HCOM	Yes	No	Yes	No	Yes	No
`hdr_pipe`	piped hdr sequence	No	No	Yes	No	Yes	No
`hds`	HDS Muxer	No	Yes	No	Yes	No	Yes
`hevc`	raw HEVC video	Yes	Yes	Yes	Yes	Yes	Yes
`hls`	Apple HTTP Live Streaming	Yes	Yes	Yes	Yes	Yes	Yes
`hnm`	Cryo HNM v4	Yes	No	Yes	No	Yes	No
`iamf`	Raw Immersive Audio Model and Formats	No	No	No	No	Yes	Yes
`ico`	Microsoft Windows ICO	Yes	Yes	Yes	Yes	Yes	Yes
`idcin`	id Cinematic	Yes	No	Yes	No	Yes	No
`idf`	iCE Draw File	Yes	No	Yes	No	Yes	No
`iff`	IFF (Interchange File Format)	Yes	No	Yes	No	Yes	No
`ifv`	IFV CCTV DVR	Yes	No	Yes	No	Yes	No
`ilbc`	iLBC storage	Yes	Yes	Yes	Yes	Yes	Yes
`image2`	image2 sequence	Yes	Yes	Yes	Yes	Yes	Yes
`image2pipe`	piped image2 sequence	Yes	Yes	Yes	Yes	Yes	Yes
`imf`	IMF (Interoperable Master Format)	Yes	No	Yes	No	Yes	No
`ingenient`	raw Ingenient MJPEG	Yes	No	Yes	No	Yes	No
`ipmovie`	Interplay MVE	Yes	No	Yes	No	Yes	No
`ipod`	iPod H.264 MP4 (MPEG-4 Part 14)	No	Yes	No	Yes	No	Yes
`ipu`	raw IPU Video	Yes	No	Yes	No	Yes	No
`ircam`	Berkeley/IRCAM/CARL Sound Format	Yes	Yes	Yes	Yes	Yes	Yes
`ismv`	ISMV/ISMA (Smooth Streaming)	No	Yes	No	Yes	No	Yes
`iss`	Funcom ISS	Yes	No	Yes	No	Yes	No
`iv8`	IndigoVision 8000 video	Yes	No	Yes	No	Yes	No
`ivf`	On2 IVF	Yes	Yes	Yes	Yes	Yes	Yes
`ivr`	IVR (Internet Video Recording)	Yes	No	Yes	No	Yes	No
`j2k_pipe`	piped j2k sequence	Yes	No	Yes	No	Yes	No
`jack`	JACK Audio Connection Kit	Yes	No	Yes	No	No	No
`jacosub`	JACOsub subtitle format	Yes	Yes	Yes	Yes	Yes	Yes
`jpeg_pipe`	piped jpeg sequence	Yes	No	Yes	No	Yes	No
`jpegls_pipe`	piped jpegls sequence	Yes	No	Yes	No	Yes	No
`jpegxl_anim`	Animated JPEG XL	No	No	Yes	No	Yes	No
`jpegxl_pipe`	piped jpegxl sequence	No	No	Yes	No	Yes	No
`jv`	Bitmap Brothers JV	Yes	No	Yes	No	Yes	No
`kmsgrab`	KMS screen capture	Yes	No	Yes	No	No	No
`kux`	KUX (YouKu)	Yes	No	Yes	No	Yes	No
`kvag`	Simon & Schuster Interactive VAG	Yes	Yes	Yes	Yes	Yes	Yes
`laf`	LAF (Limitless Audio Format)	No	No	Yes	No	Yes	No
`latm`	LOAS/LATM	No	Yes	No	Yes	No	Yes
`lavfi`	Libavfilter virtual input device	Yes	No	Yes	No	No	No
`libdc1394`	dc1394 v.2 A/V grab	Yes	No	Yes	No	No	No
`libgme`	Game Music Emu demuxer	Yes	No	Yes	No	Yes	No
`libmodplug`	ModPlug demuxer	Yes	No	Yes	No	Yes	No
`libopenmpt`	Tracker formats (libopenmpt)	No	No	Yes	No	Yes	No
`live_flv`	live RTMP FLV (Flash Video)	Yes	No	Yes	No	Yes	No
`lmlm4`	raw lmlm4	Yes	No	Yes	No	Yes	No
`loas`	LOAS AudioSyncStream	Yes	No	Yes	No	Yes	No
`lrc`	LRC lyrics	Yes	Yes	Yes	Yes	Yes	Yes
`luodat`	Video CCTV DAT	Yes	No	Yes	No	Yes	No