[FFmpeg-user] Is pcm_bluray to pcm_s16le lossless?

[Andy Furniss]

Harald Jordan wrote:
> Hm, first i would tend to demux and dump both audio streams to be sure
> it is the same.
> Second: just a shot in the dark: m2ts is a transport stream, so you
> should have one "Packet" overhead every 188 bytes (depending on the
> standard) which means dpending on the standard something between 2 and
> 18 bytes overhead every 188 bytes. (not completely sure about the
> numbers, but 2 is definitely minimum)  That is in deed what i call a lot
> of overhead...
> Like i said, just a shot in the dark, i never had a look into the m2ts
> they use on Blurays, but i dont think they invented their own TS
> standard with much larger Packets or similar...

I think that m2ts as used by bluray/avchd add an extra 4 byte timestamp 
(to help seeking) to the 188 used for broadcast, but are the same apart 
from that.