[FFmpeg-user] DV to SD Blu-ray

Andy Furniss adf.lists at gmail.com
Fri Jan 20 23:54:55 EET 2017

Andy Furniss wrote:

> As lpcm doesn't work maybe truehd?  ISTR there was a gsoc project to
> encode.

I tried and it seems the encoder has issues, needs -strict -2 and isn't
lossless (reported on playback/decode first couple of seconds).

It also produces smaller output than input (s16le -> thd -> s16le) so
checking whether the rest is losless with md5sum won't work.

IIRC blu-ray would also need ac3 for compat anyway. As br allows
640 kbit ac3 maybe just ac3 would do (not sure if stereo has lower limit).

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