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Add a comment explaining the pulseaudio prop_filter

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This commit is contained in:
Chris Robinson 2012-03-06 12:01:15 -08:00
parent f2b64fd111
commit 2ba2da467c
1 changed files with 4 additions and 0 deletions
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4
Alc/backends/pulseaudio.c
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@ -1388,6 +1388,10 @@ ALCboolean alc_pulse_init(BackendFuncs *func_list)
*func_list = pulse_funcs;
ret = ALC_TRUE;
/* Some libraries (Phonon, Qt) set some pulseaudio properties
* through environment variables, which causes all streams in
* the process to inherit them. This attempts to filter those
* properties out by setting them to 0-length data. */
prop_filter = pa_proplist_new();
pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);