[pulseaudio-tickets] [Bug 65703] High latency in HTTP streaming

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65703

--- Comment #56 from Tanu Kaskinen <tanuk at iki.fi> ---
I very much doubt that adding a rewind callback is the correct fix. The reason
is that nothing in the code base currently implements the source output
process_rewind() callback, so it doesn't seem to be important (I don't fully
understand how source rewinding works - it's quite different from sink
rewinding).

Also, source outputs can be rewound only when connected to a monitor source.
Are you using a monitor source for testing? If not, then the callback is never
called. How can the patch then have any effect on the latency? It seems that
pa_source_output_push() behaves differently if the process_rewind() callback is
set (even if it's never called):

    limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;

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