[pulseaudio-discuss] [PATCH] module-jack-sink/source: Set fixed latency correctly on creation

Maarten Lankhorst m.b.lankhorst at gmail.com
Mon Mar 26 02:54:20 PDT 2012

Hey David,

Op 26-03-12 11:30, David Henningsson schreef:
> On 03/25/2012 12:59 PM, Maarten Lankhorst wrote:
>> 250 ms default fixed latency won't work well for some applications like wine.
> Thanks for the patch. It seems reasonable to set the sink's latency to match jack's latency, but jack_port_get_total_latency is deprecated and therefore causes a compiler warning.
> Would it make more sense to use jack_port_get_latency_range and pa_sink_set_latency_range? Or maybe set the fixed latency to match the min or max value of jack's latency range?
Yes I'm adding a call to a deprecated function, but that function is already
used if you look at the code. Because PA_SOURCE_MESSAGE_GET_LATENCY
and PA_SINK_MESSAGE_GET_LATENCY both use that call, I felt it made the
most sense just to use that call directly instead of changing it even more.

Latency in general seems to be a bit of a headache with jack though,
how should the case where you have multiple ports with differing
latency requirements be handled?


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