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docs: expand taglist section in porting-to-0.11 docs a bit

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Tim-Philipp Müller 2012-06-02 16:29:45 +01:00
parent 4affde2a4f
commit 52adcbf3be
1 changed files with 12 additions and 2 deletions
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14
docs/random/porting-to-0.11.txt
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@ -454,8 +454,18 @@ The 0.11 porting guide
* GstTagList
is now an opaque mini object instead of being typedefed to a GstStructure.
Cast to GstStructure or use gst_structure_* API on it at your own peril
(it might crash if you do that)
While it was previously okay (and in some cases required because of
missing taglist API) to cast a GstTagList to a GstStructure or use
gst_structure_* API on taglists, you can no longer do that. Doing so will
cause crashes.
Also, tag lists are refcounted now, and can therefore not be freely
modified any longer. Make sure to call
taglist = gst_tag_list_make_writable (taglist);
before adding, removing or changing tags in the taglist.
gst_tag_list_new() has been renamed to gst_tag_list_new_empty().
gst_tag_list_new_full*() have been renamed to gst_tag_list_new*().