[Bug 69675] audio broken in 24Hz/24p since 3.11 (regression)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Oct 31 22:02:43 CET 2013


https://bugs.freedesktop.org/show_bug.cgi?id=69675

--- Comment #30 from Alex Deucher <agd5f at yahoo.com> ---
(In reply to comment #29)

> Hm, so actual problems were confirmed fixed with this? That seems rather
> strange, since that would mean the hardware counted the clock cycles wrong
> for the CTS value... Maybe the HW doesn't do it per-spec, instead
> calculating CTS in some other way?

Yes.  Using the sw cts/n values resulted in better results across asics
compared to the alternative fix (using the actual pll clock for the dto
calculation).  Using the hw cts/n values lead to playback speed issues on some
asics.

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