[pulseaudio-discuss] [PATCH] loopback: don't reuse low-numbered message IDs
Alexander E. Patrakov
patrakov at gmail.com
Mon Feb 16 03:35:11 PST 2015
16.02.2015 15:52, David Henningsson wrote:
> Well, the big issue I guess is that in current state,
> PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY messages always return 0.
>
> Maybe there should be a sentence about that, or I could just push it as
> it is. What do you think?
Well, I did not think about the exact message being hidden. I only
noticed that the enum did not use the = PA_SOURCE_OUTPUT_MESSAGE_MAX.
But of course, you are right. So here is an alternative commit message,
please use it if you like it better.
loopback: don't use 0 for custom source output message id
Message id 0 is PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY. So, every time
PulseAudio sent PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY message to the
loopback source output, it actually hit the
SOURCE_OUTPUT_MESSAGE_LATENCY_SNAPSHOT handler instead. As a result, the
SOURCE_OUTPUT_MESSAGE_LATENCY_SNAPSHOT handler was called when not
intended, the default PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY handler was
not called at all, and the latency was thus evaluated incorrectly.
Signed-off-by: Alexander E. Patrakov <patrakov at gmail.com>
--
Alexander E. Patrakov
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