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docs: update porting guide

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Wim Taymans 2011-02-23 12:54:21 +01:00
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docs/random/porting-to-0.11.txt
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@ -50,3 +50,41 @@ The 0.11 porting guide
A similar change was done for gst_pad_peer_get_caps() and
gst_pad_peer_get_caps_reffed()
* GstMiniObject
A miniobject is now a simple refcounted structure holding the information
common to buffers, events, messages, queries and caps.
There is no more GST_TYPE_MINIOBJECT as the type for subclasses.
G_TYPE_BOXED can be used as the type of all GstMiniObject based types such
as buffers, events, messages, caps, etc. Signals, for example, would use the
boxed type if the argument include GstMiniObject derived types.
gst_mini_object_new() is removed. You would allocate memory with the the
methods specific for the derived type.
GstParamSpecMiniObject is removed, use boxed param spec now with the GType
of the specific GstMiniObject derived type. Also
gst_param_spec_mini_object()
The specific gst_value_*_mini_object() methods are removed, used the generic
boxed methods instead.
* GstBuffer
A GstBuffer is now a simple boxed type this means that subclassing is not
possible anymore. To add more data to the buffer, you have to use the
metadata feature of buffers.
* GstEvent
* GstQuery
Boxed types derived from GstMiniObject.
* GstBufferList
Is now a boxed type derived from GstMiniObject.
* GstMessage
Is now a boxed type derived from GstMiniObject
* GstCaps
Is now a boxed type derived from GstMiniObject.