mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
c9a37cf682
Original commit message from CVS: * configure.ac: * examples/Makefile.am: * examples/pwg/Makefile.am: * examples/pwg/extract.pl: Enable building the PWG examples. * docs/pwg/advanced-interfaces.xml: Add URI interface stub. * docs/pwg/advanced-types.xml: * docs/pwg/other-autoplugger.xml: * docs/pwg/appendix-porting.xml: * docs/pwg/pwg.xml: Add porting guide (mostly stubs), remove autoplugging (see ADM). * docs/pwg/building-boiler.xml: * docs/pwg/building-chainfn.xml: * docs/pwg/building-pads.xml: * docs/pwg/building-props.xml: * docs/pwg/building-state.xml: * docs/pwg/building-testapp.xml: Update the building-*.xml parts for 0.9 changes. All examples code blocks compile in examples/pwg/*.
37 lines
1.5 KiB
XML
37 lines
1.5 KiB
XML
<chapter id="chapter-porting">
|
|
<title>Porting 0.8 plug-ins to 0.9</title>
|
|
<para>
|
|
This section of the appendix will discuss shortly what changes to
|
|
plugins will be needed to quickly and conveniently port most
|
|
applications from &GStreamer;-0.8 to &GStreamer;-0.9, with references
|
|
to the relevant sections in this Plugin Writer's Guide where needed.
|
|
With this list, it should be possible to port most plugins to
|
|
&GStreamer;-0.9 in less than a day.
|
|
</para>
|
|
|
|
<sect1 id="section-porting-objects">
|
|
<title>List of changes</title>
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
Most functions returning an object or an object property have
|
|
been changed to return its own reference rather than a constant
|
|
reference of the one owned by the object itself. The reason for
|
|
this change is primarily threadsafety. This means, effectively,
|
|
that return values of functions such as
|
|
<function>gst_element_get_pad ()</function>,
|
|
<function>gst_pad_get_name ()</function> and many more like these
|
|
have to be free'ed or unreferenced after use. Check the API
|
|
references of each function to know for sure whether return
|
|
values should be free'ed or not.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
base classes, async capsnego (caps-on-buffer), async for sinks,
|
|
bytestream dead / pull_range, direct scheduling, etc.
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</sect1>
|
|
</chapter>
|