DTS to AC3 conversion for LG TV using mediatomb DLNA server

Posted by prion crawler on Super User See other posts from Super User or by prion crawler
Published on 2011-11-21T04:06:53Z Indexed on 2012/10/03 3:41 UTC
Read the original article Hit count: 498

Filed under:

vlc

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ffmpeg

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video-streaming

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dlna

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audio-streaming

I want to convert a MKV video file containing DTS audio to a stream with AC3 audio. I want to pass this resulting stream to mediatomb's transcoding feature. Mediatomb will transfer the stream via DLNA to a LG TV, which does not support DTS audio.

I have tried the VLC command below but the TV does not recognize the stream, and playing the destination stream on PC does not produce sound.

vlc -vvv -I dummy INPUT.file --sout \
'#transcode{acodec=ac3,ab=256k,channels=2,threads=4} \
 :std{mux=ts,access=file,dst=DEST.file}'

The following ffmpeg command give a stream that plays on the TV with sound, but the ffmpeg process gets killed (with signal 15) within 10-15 seconds, and then the TV restarts the playback from the beginning. This goes on in loops.

ffmpeg -i INPUT.file -acodec ac3 -ab 384k -vcodec copy  \
 -vbsf h264_mp4toannexb -f mpegts -y DEST.file

I want to have a working DLNA server which transcodes DTS to AC3, any help is appreciated.

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