9 Apr 2013 ensonic   » (Master)

buzztard & gstreamer hackfest

This month I mostly cleaned up small bits and pieces from the gstreamer-1.0 port. Most notably multitrack encoding works again. The handling of EOS and starting of the next track was racy. Speaking of the recording dialog - this one now has some basics for a silent mode implemented. For now it only disables the scrolling in the sequence view. Next thing would be to disable the level meters.

I hacked a bit more on the child-proxy iface. This now turned into utility functions that allows to write:
bt_child_proxy_set(obj, "prop1::prop2::prop3", val, NULL);
So what does this do?
GObject obj1, obj2;
g_object_get(obj, "prop1", &obj1, NULL);
g_object_get(obj1, "prop2", &obj2, NULL);
g_object_set(obj2, "prop3", val, NULL);
g_object_unref (obj2);
g_object_unref (obj1);

This saved quite a few lines of C in buzztard. I wonder if this is something we want to add to glib? If we do I would go for a single ':' as a separator and we might also want to consider starting the property with one:
g_object_set(obj, ":prop1:prop2:prop3", val, NULL);
The leading ':' would help to quickly detect whether we need to split the property name and recurse into child objects. The whole scheme is backwards compatible as property names are not allowed to contain ':'.

In the end of march I attended the GStreamer hackfest in Milano. First I looked into a few tests - both on GStreamer and buzztard side. On the GStreamer side adder has some test fixes. On the buzztard side I improved my encoding tests. Wim gave me the crucial tip that fixed the dynamic adding/removing of analyzers while playing. Maybe I can try that for machines again. I showed the parser for controller-setups to some people and did smaller changes on it. I also discussed what we could do with gst-tracelib for gst-1.0 and started a new design-draft for it.

41 files changed, 871 insertions(+), 816 deletions(-)

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