Re: [PATCH spice-gtk 32/34] gst: check pulseaudio plugin version >= 1.15

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Hi

On Mon, Jan 7, 2019 at 1:11 PM Snir Sheriber <ssheribe@xxxxxxxxxx> wrote:
>
> Hi,
>
>
> On 1/7/19 10:01 AM, marcandre.lureau@xxxxxxxxxx wrote:
> > From: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
> >
> > There is a racy bug in pulsesrc that we can't easily workaround:
> > https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/merge_requests/69
> >
> > It will hopefully be fixed with 1.15.
> >
> > In theory, pulseaudio may not be picked by autoaudiosink, but looking
> > up the actual sink or mimicking GstAutoDetect is unnecessarily complicated.
> >
> > Signed-off-by: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
> > ---
> >   src/spice-gstaudio.c | 19 +++++++++++++++++++
> >   1 file changed, 19 insertions(+)
> >
> > diff --git a/src/spice-gstaudio.c b/src/spice-gstaudio.c
> > index d0cfbc6..d7bfc97 100644
> > --- a/src/spice-gstaudio.c
> > +++ b/src/spice-gstaudio.c
> > @@ -527,7 +527,26 @@ SpiceGstaudio *spice_gstaudio_new(SpiceSession *session, GMainContext *context,
> >                                     const char *name)
> >   {
> >       GError *err = NULL;
> > +
> >       if (gst_init_check(NULL, NULL, &err)) {
> > +        GstPlugin *plugin;
> > +
> > +        plugin = gst_registry_find_plugin(gst_registry_get(), "pulseaudio");
> > +        if (plugin) {
> > +            unsigned maj, min;
> > +            if (sscanf(gst_plugin_get_version(plugin), "%u.%u", &maj, &min) != 2) {
> > +                g_warn_if_reached();
> > +                gst_object_unref(plugin);
> > +                return NULL;
> > +            }
> > +
> > +            gst_object_unref(plugin);
> > +            if (maj < 1 || min < 15) {
> > +                g_warning("Disabling GStreamer audio: bad pulseaudio plugin version");
> > +                return NULL;
> > +            }
> > +        }
>
>
> You can avoid using the plugin by changing its rank (as we did with
> vaapisink in channel-display-gst.c)

That's an interesting idea, we could make the alsa backend higher
priority than the pulse one with <1.15.

>
> Snir.
>
>
> > +
> >           return g_object_new(SPICE_TYPE_GSTAUDIO,
> >                               "session", session,
> >                               "main-context", context,
> _______________________________________________
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> Spice-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/spice-devel



-- 
Marc-André Lureau
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