Arch Linux

karabaja4

Member

From: Croatia

Registered: 2008-09-14

Posts: 1,001

Website

VLC 2.0 won't do mp4a audio transcoding

Last few versions of VLC won't do mp4a audio transcoding.

Relevant output:

Codec is experimental but experimental codecs are not enabled, see -strict -2
[0x7f6a24001028] avcodec encoder error: cannot open encoder
[0x7f6a24001028] main encoder error: Streaming / Transcoding failed
[0x7f6a24001028] main encoder error: VLC could not open the encoder.
[0x7f6a34002478] stream_out_transcode stream out error: cannot find audio encoder (module:any fourcc:mp4a). 

This worked not too long ago, until apperantly mp4a was moved to "experimental". What flag do I need to use to use mp4a codec?

This is the line I am using to start VLC:

cvlc "$*" --play-and-exit --sout '#transcode{vcodec=h264,vb=600,scale=1.0,acodec=mp4a,ab=64,channels=2}:standard{access=http,mux=ts,dst==192.168.1.100:46232}'

haukew

Member

From: Hamburg, Germany

Registered: 2007-10-25

Posts: 96

Website

Re: VLC 2.0 won't do mp4a audio transcoding

This is also relevant when you try to remotely stream to your mobile device (android) with VLC Direct. I get this error (no matter which file/input codec i choose)

Codec is experimental but experimental codecs are not enabled, see -strict -2
[0xaf300a94] avcodec encoder error: cannot open encoder
[0xb1201854] stream_out_transcode stream out error: cannot find audio encoder (module:any fourcc:mp4a)
[0xb1201854] stream_out_transcode stream out error: cannot create audio chain
[0xb121581c] main decoder error: cannot create packetizer output (mpga)

very frustrating, i don't give a damn if these codecs are experimental or not, just let me enable them! :-(