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https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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cbaeea4af7
We met two problems recently, one happened on a Lenovo machine with dual analogue codecs, the other happened on a Dell machine with a digital mic directly connected to PCH. The two problems are basically same, there is an internal mic and an external mic, the internal mic always shows up in the gnome-control-center, the external mic only shows up when it is plugged. After the external mic is plugged and users select it from gnome-control-center, the gnome-control-center will read all saved streams through extension_cb, and bind the source of external mic to all streams, after that the apps only record sound via the source of external mic, after the external mic is unplugged, the internal mic will automatically be selected since it is the only left input device in the gnome-control-center, since users don't select it, all streams are still bond the source of external mic. When users record sound via apps, they can't record any sound even the default_source is the source of internal mic and the internal mic is selected in the UI. It is very common that a machine has internal mic and external mic, but this problem didn't expose before, that is because both internal mic and external mic belong to one source, but for those two machines, the internal mic belongs to one source, while the external mic belongs to another source (they are in differnt codecs or one is in the codec and the other is from PCH), To fix it with a mininal change, we just check if the active_port is PA_AVAILABLE_NO or not when building a new stream, if it is, don't restore the device to the new built stream, let pa_source_output_new() decide the source device for this stream. And we also do the same change to sink_input. This change only affects the new built streams, it will not change the database, so the users' preference is still saved in the database, after the active_port is not PA_AVAILABLE_NO, the new streams will still restore to the preferred device. Signed-off-by: Hui Wang <hui.wang@canonical.com> |
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PULSEAUDIO SOUND SERVER
WEB SITE:
http://pulseaudio.org/
GIT:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
GitLab:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio
MAILING LIST:
http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
GIT COMMITS MAILING LIST:
http://lists.freedesktop.org/mailman/listinfo/pulseaudio-commits
TRAC/BUGZILLA TICKET CHANGES MAILING LIST:
http://lists.freedesktop.org/mailman/listinfo/pulseaudio-bugs
IRC:
#pulseaudio on irc.freenode.org
FRESHMEAT:
http://freshmeat.net/projects/pulseaudio/
OHLOH:
http://www.ohloh.net/projects/4038
AUTHORS:
Several
HACKING:
In order to run pulseaudio from the build dir __OPTIMIZE__ should be
disabled (look at src/pulsecore/core-util.h::pa_run_from_build_tree()),
this can be done by passing "CFLAGS=-O0" to the configure script:
./autogen.sh
CFLAGS="-ggdb3 -O0" LDFLAGS="-ggdb3" ./configure
make
./src/pulseaudio -n -F src/default.pa -p $(pwd)/src/
SPELLING:
PulseAudio