Re: [PATCH spice-gtk v3] gst: check pulsesrc version >= 1.14.5

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Hi

On Wed, Jan 16, 2019 at 3:14 PM Frediano Ziglio <fziglio@xxxxxxxxxx> wrote:
>
> >
> > Hi,
> >
> > On Wed, Jan 16, 2019 at 12:43:06PM +0400, Marc-André Lureau wrote:
> > > Hi
> > >
> > >
> > > On Fri, Jan 11, 2019 at 3:03 PM <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 is fixed with 1.15, and will be backported to upcoming 1.14.5.
> > > >
> > > > PulseAudio may not be picked by autoaudiosrc, but looking up the
> > > > actual source or mimicking GstAutoDetect is unnecessarily complicated.
> > > >
> > > > When pulsesrc < 1.14.5 is detected, let's drop its rank, so it won't be
> > > > picked.
> > > >
> > > > Signed-off-by: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
> > >
> > > I think we agreed that this is the way to go.
> > >
> > > ack for v0.36, or should we continue the discussion for v0.37?
> >
> > ack for v0.36
> >
> > >
> > > >  src/spice-gstaudio.c | 28 ++++++++++++++++++++++++++++
> > > >  1 file changed, 28 insertions(+)
> > > >
> > > > diff --git a/src/spice-gstaudio.c b/src/spice-gstaudio.c
> > > > index d0cfbc6..49e9ae6 100644
> > > > --- a/src/spice-gstaudio.c
> > > > +++ b/src/spice-gstaudio.c
> > > > @@ -527,7 +527,35 @@ SpiceGstaudio *spice_gstaudio_new(SpiceSession
> > > > *session, GMainContext *context,
> > > >                                    const char *name)
> > > >  {
> > > >      GError *err = NULL;
> > > > +
> > > >      if (gst_init_check(NULL, NULL, &err)) {
> > > > +        GstPluginFeature *pulsesrc;
> > > > +
> > > > +        pulsesrc = gst_registry_lookup_feature(gst_registry_get(),
> > > > "pulsesrc");
> > > > +        if (pulsesrc) {
> > > > +            unsigned major, minor, micro;
> > > > +            GstPlugin *plugin = gst_plugin_feature_get_plugin(pulsesrc);
> > > > +
> > > > +            if (sscanf(gst_plugin_get_version(plugin), "%u.%u.%u",
> > > > +                       &major, &minor, &micro) != 3) {
> > > > +                g_warn_if_reached();
> > > > +                gst_object_unref(plugin);
> > > > +                gst_object_unref(pulsesrc);
> > > > +                return NULL;
> > > > +            }
> > > > +
> > > > +            if (major < 1 ||
> > > > +                (major == 1 && minor < 14) ||
> > > > +                (major == 1 && minor == 14 && micro < 5)) {
> > > > +                g_warning("Bad pulsesrc version %s, lowering its rank",
> > > > +                          gst_plugin_get_version(plugin));
> > > > +                gst_plugin_feature_set_rank(pulsesrc, GST_RANK_NONE);
> > > > +            }
> > > > +
> > > > +            gst_object_unref(plugin);
> > > > +            gst_object_unref(pulsesrc);
> > > > +        }
> > > > +
> > > >          return g_object_new(SPICE_TYPE_GSTAUDIO,
> > > >                              "session", session,
> > > >                              "main-context", context,
>
> Looks like the version merged in master is quite different from this version,
> in particular:
>
>             if (maj < 1 || min < 15) {
>                 g_warning("Bad pulsesrc version, lowering its rank");
>                 gst_plugin_feature_set_rank(pulsesrc, GST_RANK_NONE);
>             }
>
> will lower the rank even if the version is 2.0 which probably is higher
> than 1.15.
>
> By the way, it looks like you pushed the wrong patch, like this old one
> https://lists.freedesktop.org/archives/spice-devel/2019-January/047138.html
> which was not acked.

yes, wrong version, my bad!

Thanks for noticing!!


-- 
Marc-André Lureau
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