# Audio codecs

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

* [🤖/audio/artwork](/docs/robots/audio-artwork.md)
* [🤖/audio/concat](/docs/robots/audio-concat.md)
* [🤖/audio/split](/docs/robots/audio-split.md)
* [🤖/audio/encode](/docs/robots/audio-encode.md)
* [🤖/audio/loop](/docs/robots/audio-loop.md)
* [🤖/audio/merge](/docs/robots/audio-merge.md)
* [🤖/audio/waveform](/docs/robots/audio-waveform.md)
* [🤖/meta/write](/docs/robots/meta-write.md)
* [🤖/video/adaptive](/docs/robots/video-adaptive.md)
* [🤖/video/artwork](/docs/robots/video-artwork.md)
* [🤖/video/concat](/docs/robots/video-concat.md)
* [🤖/video/encode](/docs/robots/video-encode.md)
* [🤖/video/merge](/docs/robots/video-merge.md)
* [🤖/video/split](/docs/robots/video-split.md)
* [🤖/video/subtitle](/docs/robots/video-subtitle.md)
* [🤖/video/thumbs](/docs/robots/video-thumbs.md)

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**

|v5|v6|v7|||||||
|-|-|-|-|-|-|-|-|-|
|Name|Description|Read|Write|Read|Write|Read|Write||
|4gv|4GV (Fourth Generation Vocoder)|No|No|No|No|No|No||
|8svx\_exp|8SVX exponential|Yes|No|Yes|No|Yes|No||
|8svx\_fib|8SVX fibonacci|Yes|No|Yes|No|Yes|No||
|aac|AAC (Advanced Audio Coding) (decoders: aac aac\_fixed libfdk\_aac ) (encoders: aac libfdk\_aac )|Yes|Yes|Yes|Yes|Yes|Yes||
|aac\_latm|AAC LATM (Advanced Audio Coding LATM syntax)|Yes|No|Yes|No|Yes|No||
|ac3|ATSC A/52A (AC-3) (decoders: ac3 ac3\_fixed ) (encoders: ac3 ac3\_fixed )|Yes|Yes|Yes|Yes|Yes|Yes||
|ac4|AC-4|No|No|No|No|No|No||
|acelp.kelvin|Sipro ACELP.KELVIN|Yes|No|Yes|No|Yes|No||
|adpcm\_4xm|ADPCM 4X Movie|Yes|No|Yes|No|Yes|No||
|adpcm\_adx|SEGA CRI ADX ADPCM|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_afc|ADPCM Nintendo Gamecube AFC|Yes|No|Yes|No|Yes|No||
|adpcm\_agm|ADPCM AmuseGraphics Movie AGM|Yes|No|Yes|No|Yes|No||
|adpcm\_aica|ADPCM Yamaha AICA|Yes|No|Yes|No|Yes|No||
|adpcm\_argo|ADPCM Argonaut Games|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ct|ADPCM Creative Technology|Yes|No|Yes|No|Yes|No||
|adpcm\_dtk|ADPCM Nintendo Gamecube DTK|Yes|No|Yes|No|Yes|No||
|adpcm\_ea|ADPCM Electronic Arts|Yes|No|Yes|No|Yes|No||
|adpcm\_ea\_maxis\_xa|ADPCM Electronic Arts Maxis CDROM XA|Yes|No|Yes|No|Yes|No||
|adpcm\_ea\_r1|ADPCM Electronic Arts R1|Yes|No|Yes|No|Yes|No||
|adpcm\_ea\_r2|ADPCM Electronic Arts R2|Yes|No|Yes|No|Yes|No||
|adpcm\_ea\_r3|ADPCM Electronic Arts R3|Yes|No|Yes|No|Yes|No||
|adpcm\_ea\_xas|ADPCM Electronic Arts XAS|Yes|No|Yes|No|Yes|No||
|adpcm\_g722|G.722 ADPCM (decoders: g722 ) (encoders: g722 )|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_g726|G.726 ADPCM (decoders: g726 ) (encoders: g726 )|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_g726le|G.726 ADPCM little-endian (decoders: g726le ) (encoders: g726le )|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_acorn|ADPCM IMA Acorn Replay|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_alp|ADPCM IMA High Voltage Software ALP|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_amv|ADPCM IMA AMV|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_apc|ADPCM IMA CRYO APC|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_apm|ADPCM IMA Ubisoft APM|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_cunning|ADPCM IMA Cunning Developments|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_dat4|ADPCM IMA Eurocom DAT4|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_dk3|ADPCM IMA Duck DK3|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_dk4|ADPCM IMA Duck DK4|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_ea\_eacs|ADPCM IMA Electronic Arts EACS|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_ea\_sead|ADPCM IMA Electronic Arts SEAD|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_iss|ADPCM IMA Funcom ISS|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_moflex|ADPCM IMA MobiClip MOFLEX|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_mtf|ADPCM IMA Capcom's MT Framework|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_oki|ADPCM IMA Dialogic OKI|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_qt|ADPCM IMA QuickTime|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_rad|ADPCM IMA Radical|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_smjpeg|ADPCM IMA Loki SDL MJPEG|Yes|No|Yes|No|Yes|No||
|adpcm\_ima\_ssi|ADPCM IMA Simon & Schuster Interactive|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_wav|ADPCM IMA WAV|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ima\_ws|ADPCM IMA Westwood|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_ms|ADPCM Microsoft|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_mtaf|ADPCM MTAF|Yes|No|Yes|No|Yes|No||
|adpcm\_psx|ADPCM Playstation|Yes|No|Yes|No|Yes|No||
|adpcm\_sbpro\_2|ADPCM Sound Blaster Pro 2-bit|Yes|No|Yes|No|Yes|No||
|adpcm\_sbpro\_3|ADPCM Sound Blaster Pro 2.6-bit|Yes|No|Yes|No|Yes|No||
|adpcm\_sbpro\_4|ADPCM Sound Blaster Pro 4-bit|Yes|No|Yes|No|Yes|No||
|adpcm\_swf|ADPCM Shockwave Flash|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_thp|ADPCM Nintendo THP|Yes|No|Yes|No|Yes|No||
|adpcm\_thp\_le|ADPCM Nintendo THP (Little-Endian)|Yes|No|Yes|No|Yes|No||
|adpcm\_vima|LucasArts VIMA audio|Yes|No|Yes|No|Yes|No||
|adpcm\_xa|ADPCM CDROM XA|Yes|No|Yes|No|Yes|No||
|adpcm\_xmd|ADPCM Konami XMD|No|No|Yes|No|Yes|No||
|adpcm\_yamaha|ADPCM Yamaha|Yes|Yes|Yes|Yes|Yes|Yes||
|adpcm\_zork|ADPCM Zork|Yes|No|Yes|No|Yes|No||
|alac|ALAC (Apple Lossless Audio Codec)|Yes|Yes|Yes|Yes|Yes|Yes||
|amr\_nb|AMR-NB (Adaptive Multi-Rate NarrowBand) (decoders: amrnb libopencore\_amrnb ) (encoders: libopencore\_amrnb )|Yes|Yes|Yes|Yes|Yes|Yes||
|amr\_wb|AMR-WB (Adaptive Multi-Rate WideBand) (decoders: amrwb ) (encoders: libvo\_amrwbenc )|Yes|Yes|Yes|Yes|Yes|Yes||
|anull|Null audio codec|No|No|Yes|Yes|Yes|Yes||
|apac|Marian's A-pac audio|No|No|Yes|No|Yes|No||
|ape|Monkey's Audio|Yes|No|Yes|No|Yes|No||
|aptx|aptX (Audio Processing Technology for Bluetooth)|Yes|Yes|Yes|Yes|Yes|Yes||
|aptx\_hd|aptX HD (Audio Processing Technology for Bluetooth)|Yes|Yes|Yes|Yes|Yes|Yes||
|atrac1|ATRAC1 (Adaptive TRansform Acoustic Coding)|Yes|No|Yes|No|Yes|No||
|atrac3|ATRAC3 (Adaptive TRansform Acoustic Coding 3)|Yes|No|Yes|No|Yes|No||
|atrac3al|ATRAC3 AL (Adaptive TRansform Acoustic Coding 3 Advanced Lossless)|Yes|No|Yes|No|Yes|No||
|atrac3p|ATRAC3+ (Adaptive TRansform Acoustic Coding 3+) (decoders: atrac3plus )|Yes|No|Yes|No|Yes|No||
|atrac3pal|ATRAC3+ AL (Adaptive TRansform Acoustic Coding 3+ Advanced Lossless) (decoders: atrac3plusal )|Yes|No|Yes|No|Yes|No||
|atrac9|ATRAC9 (Adaptive TRansform Acoustic Coding 9)|Yes|No|Yes|No|Yes|No||
|avc|On2 Audio for Video Codec (decoders: on2avc )|Yes|No|Yes|No|Yes|No||
|binkaudio\_dct|Bink Audio (DCT)|Yes|No|Yes|No|Yes|No||
|binkaudio\_rdft|Bink Audio (RDFT)|Yes|No|Yes|No|Yes|No||
|bmv\_audio|Discworld II BMV audio|Yes|No|Yes|No|Yes|No||
|bonk|Bonk audio|No|No|Yes|No|Yes|No||
|cbd2\_dpcm|DPCM Cuberoot-Delta-Exact|No|No|Yes|No|Yes|No||
|celt|Constrained Energy Lapped Transform (CELT) (decoders: libcelt )|Yes|No|Yes|No|Yes|No||
|codec2|codec2 (very low bitrate speech codec)|No|No|Yes|Yes|Yes|Yes||
|comfortnoise|RFC 3389 Comfort Noise|Yes|Yes|Yes|Yes|Yes|Yes||
|cook|Cook / Cooker / Gecko (RealAudio G2)|Yes|No|Yes|No|Yes|No||
|derf\_dpcm|DPCM Xilam DERF|Yes|No|Yes|No|Yes|No||
|dfpwm|DFPWM (Dynamic Filter Pulse Width Modulation)|No|No|Yes|Yes|Yes|Yes||
|dolby\_e|Dolby E|Yes|No|Yes|No|Yes|No||
|dsd\_lsbf|DSD (Direct Stream Digital), least significant bit first|Yes|No|Yes|No|Yes|No||
|dsd\_lsbf\_planar|DSD (Direct Stream Digital), least significant bit first, planar|Yes|No|Yes|No|Yes|No||
|dsd\_msbf|DSD (Direct Stream Digital), most significant bit first|Yes|No|Yes|No|Yes|No||
|dsd\_msbf\_planar|DSD (Direct Stream Digital), most significant bit first, planar|Yes|No|Yes|No|Yes|No||
|dsicinaudio|Delphine Software International CIN audio|Yes|No|Yes|No|Yes|No||
|dss\_sp|Digital Speech Standard - Standard Play mode (DSS SP)|Yes|No|Yes|No|Yes|No||
|dst|DST (Direct Stream Transfer)|Yes|No|Yes|No|Yes|No||
|dts|DCA (DTS Coherent Acoustics) (decoders: dca ) (encoders: dca )|Yes|Yes|Yes|Yes|Yes|Yes||
|dvaudio|DV audio|Yes|No|Yes|No|Yes|No||
|eac3|ATSC A/52B (AC-3, E-AC-3)|Yes|Yes|Yes|Yes|Yes|Yes||
|evrc|EVRC (Enhanced Variable Rate Codec)|Yes|No|Yes|No|Yes|No||
|fastaudio|MobiClip FastAudio|Yes|No|Yes|No|Yes|No||
|flac|FLAC (Free Lossless Audio Codec)|Yes|Yes|Yes|Yes|Yes|Yes||
|ftr|FTR Voice|No|No|Yes|No|Yes|No||
|g723\_1|G.723.1|Yes|Yes|Yes|Yes|Yes|Yes||
|g729|G.729|Yes|No|Yes|No|Yes|No||
|gremlin\_dpcm|DPCM Gremlin|Yes|No|Yes|No|Yes|No||
|gsm|GSM (decoders: gsm libgsm ) (encoders: libgsm )|Yes|Yes|Yes|Yes|Yes|Yes||
|gsm\_ms|GSM Microsoft variant (decoders: gsm\_ms libgsm\_ms ) (encoders: libgsm\_ms )|Yes|Yes|Yes|Yes|Yes|Yes||
|hca|CRI HCA|Yes|No|Yes|No|Yes|No||
|hcom|HCOM Audio|Yes|No|Yes|No|Yes|No||
|iac|IAC (Indeo Audio Coder)|Yes|No|Yes|No|Yes|No||
|ilbc|iLBC (Internet Low Bitrate Codec)|Yes|No|Yes|No|Yes|No||
|imc|IMC (Intel Music Coder)|Yes|No|Yes|No|Yes|No||
|interplay\_dpcm|DPCM Interplay|Yes|No|Yes|No|Yes|No||
|interplayacm|Interplay ACM|Yes|No|Yes|No|Yes|No||
|mace3|MACE (Macintosh Audio Compression/Expansion) 3:1|Yes|No|Yes|No|Yes|No||
|mace6|MACE (Macintosh Audio Compression/Expansion) 6:1|Yes|No|Yes|No|Yes|No||
|metasound|Voxware MetaSound|Yes|No|Yes|No|Yes|No||
|misc4|Micronas SC-4 Audio|No|No|Yes|No|Yes|No||
|mlp|MLP (Meridian Lossless Packing)|Yes|Yes|Yes|Yes|Yes|Yes||
|mp1|MP1 (MPEG audio layer 1) (decoders: mp1 mp1float )|Yes|No|Yes|No|Yes|No||
|mp2|MP2 (MPEG audio layer 2) (decoders: mp2 mp2float ) (encoders: mp2 mp2fixed )|Yes|Yes|Yes|Yes|Yes|Yes||
|mp3|MP3 (MPEG audio layer 3) (decoders: mp3float mp3 ) (encoders: libmp3lame )|Yes|Yes|Yes|Yes|Yes|Yes||
|mp3adu|ADU (Application Data Unit) MP3 (MPEG audio layer 3) (decoders: mp3adufloat mp3adu )|Yes|No|Yes|No|Yes|No||
|mp3on4|MP3onMP4 (decoders: mp3on4float mp3on4 )|Yes|No|Yes|No|Yes|No||
|mp4als|MPEG-4 Audio Lossless Coding (ALS) (decoders: als )|Yes|No|Yes|No|Yes|No||
|mpegh\_3d\_audio|MPEG-H 3D Audio|No|No|No|No|No|No||
|msnsiren|MSN Siren|Yes|No|Yes|No|Yes|No||
|musepack7|Musepack SV7 (decoders: mpc7 )|Yes|No|Yes|No|Yes|No||
|musepack8|Musepack SV8 (decoders: mpc8 )|Yes|No|Yes|No|Yes|No||
|nellymoser|Nellymoser Asao|Yes|Yes|Yes|Yes|Yes|Yes||
|opus|Opus (Opus Interactive Audio Codec) (decoders: opus libopus ) (encoders: opus libopus )|Yes|Yes|Yes|Yes|Yes|Yes||
|osq|OSQ (Original Sound Quality)|No|No|Yes|No|Yes|No||
|paf\_audio|Amazing Studio Packed Animation File Audio|Yes|No|Yes|No|Yes|No||
|pcm\_alaw|PCM A-law / G.711 A-law|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_bluray|PCM signed 16\|20|24-bit big-endian for Blu-ray media|Yes|No|Yes|Yes|Yes|Yes|
|pcm\_dvd|PCM signed 20\|24-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_f16le|PCM 16.8 floating point little-endian|Yes|No|Yes|No|Yes|No||
|pcm\_f24le|PCM 24.0 floating point little-endian|Yes|No|Yes|No|Yes|No||
|pcm\_f32be|PCM 32-bit floating point big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_f32le|PCM 32-bit floating point little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_f64be|PCM 64-bit floating point big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_f64le|PCM 64-bit floating point little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_lxf|PCM signed 20-bit little-endian planar|Yes|No|Yes|No|Yes|No||
|pcm\_mulaw|PCM mu-law / G.711 mu-law|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s16be|PCM signed 16-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s16be\_planar|PCM signed 16-bit big-endian planar|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s16le|PCM signed 16-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s16le\_planar|PCM signed 16-bit little-endian planar|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s24be|PCM signed 24-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s24daud|PCM D-Cinema audio signed 24-bit|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s24le|PCM signed 24-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s24le\_planar|PCM signed 24-bit little-endian planar|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s32be|PCM signed 32-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s32le|PCM signed 32-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s32le\_planar|PCM signed 32-bit little-endian planar|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s64be|PCM signed 64-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s64le|PCM signed 64-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s8|PCM signed 8-bit|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_s8\_planar|PCM signed 8-bit planar|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_sga|PCM SGA|Yes|No|Yes|No|Yes|No||
|pcm\_u16be|PCM unsigned 16-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u16le|PCM unsigned 16-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u24be|PCM unsigned 24-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u24le|PCM unsigned 24-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u32be|PCM unsigned 32-bit big-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u32le|PCM unsigned 32-bit little-endian|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_u8|PCM unsigned 8-bit|Yes|Yes|Yes|Yes|Yes|Yes||
|pcm\_vidc|PCM Archimedes VIDC|Yes|Yes|Yes|Yes|Yes|Yes||
|qcelp|QCELP / PureVoice|Yes|No|Yes|No|Yes|No||
|qdm2|QDesign Music Codec 2|Yes|No|Yes|No|Yes|No||
|qdmc|QDesign Music|Yes|No|Yes|No|Yes|No||
|qoa|QOA (Quite OK Audio)|No|No|No|No|Yes|No||
|ra\_144|RealAudio 1.0 (14.4K) (decoders: real\_144 ) (encoders: real\_144 )|Yes|Yes|Yes|Yes|Yes|Yes||
|ra\_288|RealAudio 2.0 (28.8K) (decoders: real\_288 )|Yes|No|Yes|No|Yes|No||
|ralf|RealAudio Lossless|Yes|No|Yes|No|Yes|No||
|rka|RKA (RK Audio)|No|No|Yes|No|Yes|No||
|roq\_dpcm|DPCM id RoQ|Yes|Yes|Yes|Yes|Yes|Yes||
|s302m|SMPTE 302M|Yes|Yes|Yes|Yes|Yes|Yes||
|sbc|SBC (low-complexity subband codec)|Yes|Yes|Yes|Yes|Yes|Yes||
|sdx2\_dpcm|DPCM Squareroot-Delta-Exact|Yes|No|Yes|No|Yes|No||
|shorten|Shorten|Yes|No|Yes|No|Yes|No||
|sipr|RealAudio SIPR / ACELP.NET|Yes|No|Yes|No|Yes|No||
|siren|Siren|Yes|No|Yes|No|Yes|No||
|smackaudio|Smacker audio (decoders: smackaud )|Yes|No|Yes|No|Yes|No||
|smv|SMV (Selectable Mode Vocoder)|No|No|No|No|No|No||
|sol\_dpcm|DPCM Sol|Yes|No|Yes|No|Yes|No||
|sonic|Sonic|Yes|Yes|Yes|Yes|Yes|Yes||
|sonicls|Sonic lossless|No|Yes|No|Yes|No|Yes||
|speex|Speex (decoders: speex libspeex ) (encoders: libspeex )|Yes|Yes|Yes|Yes|Yes|Yes||
|tak|TAK (Tom's lossless Audio Kompressor)|Yes|No|Yes|No|Yes|No||
|truehd|TrueHD|Yes|Yes|Yes|Yes|Yes|Yes||
|truespeech|DSP Group TrueSpeech|Yes|No|Yes|No|Yes|No||
|tta|TTA (True Audio)|Yes|Yes|Yes|Yes|Yes|Yes||
|twinvq|VQF TwinVQ|Yes|No|Yes|No|Yes|No||
|vmdaudio|Sierra VMD audio|Yes|No|Yes|No|Yes|No||
|vorbis|Vorbis (decoders: vorbis libvorbis ) (encoders: vorbis libvorbis )|Yes|Yes|Yes|Yes|Yes|Yes||
|wady\_dpcm|DPCM Marble WADY|No|No|Yes|No|Yes|No||
|wavarc|Waveform Archiver|No|No|Yes|No|Yes|No||
|wavesynth|Wave synthesis pseudo-codec|Yes|No|Yes|No|Yes|No||
|wavpack|WavPack|Yes|Yes|Yes|Yes|Yes|Yes||
|westwood\_snd1|Westwood Audio (SND1) (decoders: ws\_snd1 )|Yes|No|Yes|No|Yes|No||

**ffmpeg\_stack**

|v5|v6|v7|||||||
|-|-|-|-|-|-|-|-|-|
|Name|Description|Read|Write|Read|Write|Read|Write||
|codec2|codec2 (very low bitrate speech codec)|No|No|Yes|Yes|Yes|Yes||
|pcm\_bluray|PCM signed 16\|20|24-bit big-endian for Blu-ray media|Yes|No|Yes|Yes|Yes|Yes|