[pulseaudio-discuss] [PATCH 2/2] pulse: Bump PA_RATE_MAX to 384 kHz

[Tanu Kaskinen]

On Thu, 2015-12-31 at 09:42 +0530, arun at accosted.net wrote:
> From: Arun Raghavan <git at arunraghavan.net>
> 
> This will likely be needed in the future when we start supporting high
> bitrate passthrough, and there actually seem to be people 352/384 kHz
> out there (potentially as an intermediate production step).

What's your source for claiming that there seems to be people with such
PCM files (I'm assuming you implied PCM files)? If it's only used as an
intermediate production step, is there any evidence that people would
want to play that intermediate stuff via pulseaudio?

The mpv bug was about a dsf file (which means a dsd stream from sacd?).
Supposedly the stream contents were non-PCM data containing more than 2
channels, meant to be played in passthrough mode. And I guess alsa has
specified that such content should be wrapped in a 2-channel 384 kHz
float fake-PCM stream? I don't like extending the rate range for PCM
streams just because alsa's passthrough implementation happens to
specify such parameters for fake-PCM streams, but maybe there aren't
any better options...

-- 
Tanu