[pulseaudio-tickets] [Bug 66884] New: pa_stream_get_latency return value steadily increases when playing over network

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66884

          Priority: medium
            Bug ID: 66884
                CC: lennart at poettering.net
          Assignee: pulseaudio-bugs at lists.freedesktop.org
           Summary: pa_stream_get_latency return value steadily increases
                    when playing over network
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bugs at kerrickstaley.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: clients
           Product: PulseAudio

To reproduce:
1. Have two computers, one connected to speakers (the server) and the other
running VLC (the client)
2. On the server, append the following two lines to /etc/pulse/system.pa, start
Avahi, and run pulse --system --daemon:
load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1;192.168.1.0/24
auth-anonymous=1
load-module module-zeroconf-publish
3. On the client, append the following two lines to /etc/pulse/default.pa,
start Avahi, and run pulse --daemon:
load-module module-native-protocol-tcp
load-module module-zeroconf-discover
4. Run VLC on the client, observe the values returned by pa_stream_get_latency
in the function vlc_pa_get_latency in the file vlcpulse.c

Expected result:
Values vary within a relatively small range (which is what happens when playing
locally).

Actual result:
Values increase directly with time (i.e. after 4 seconds, values are roughly 4
seconds higher than they were initially).

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