ensure the osx build include all the gstreamer modules we need (and only those)

[Antoine Martin]

And as a result, sound does not work unless the GStreamer framework is installed locally, and the option is now shown in the menu.

[Antoine Martin]

r2930 sets up the correct paths, which means we can now see the plugins from wherever the application is installed (here on a clean/minimal 10.6.8 system):

$ Xpra.app/Contents/Helpers/Python -c "from xpra.sound import gstreamer_util;gstreamer_util.main()"
2013-03-10 13:16:58,570 GStreamer plugins found: 3gppmux, aacparse, ac3iec958, \
    ac3parse, adder, adpcmdec .......

And the configuration class also sees them:

$ Xpra.app/Contents/Helpers/Python -c \
    "from xpra.scripts.config import get_codecs;print('codecs=%s' % get_codecs(True,False))"
codecs=['mp3', 'wav']
$ Xpra.app/Contents/Helpers/Python -c \
    "from xpra.scripts.config import get_codecs;print('codecs=%s' % get_codecs(False,False))"
codecs=['mp3', 'wav']

Problem is that somehow the xpra attach command somehow does not!?:

WARNING: some of the specified speaker codecs are not available: mp3
WARNING: some of the specified microphone codecs are not available: mp3

So, still left to do:

• fix "xpra attach"
• ensure we ship all the required dylibs to support aac, opus, etc..
• trim down the list of plugins we ship (similar to r2776 for win32)

[Antoine Martin]

First, the ​osx build instructions needed ​updating to include all the audio codecs we want to support. Then re-build all the gstreamer modules... (long)

---

Then we need to figure out which dylibs we want to include, since py2app and gtk-mac-bundler fail to do this automagically for us.

Here is how to get the list of dylibs for a plugin :

otool -L Xpra.app/Contents/Resources/lib/gstreamer-0.10/libgstfaac.so 
Xpra.app/Contents/Resources/lib/gstreamer-0.10/libgstfaac.so:
	@executable_path/../Resources/lib/libfaac.0.dylib (compatibility version 1.0.0, current version 1.0.0)
	@executable_path/../Resources/lib/libgstbase-0.10.0.dylib (compatibility version 30.0.0, current version 30.0.0)
	@executable_path/../Resources/lib/libgstreamer-0.10.0.dylib (compatibility version 30.0.0, current version 30.0.0)
	@executable_path/../Resources/lib/libgobject-2.0.0.dylib (compatibility version 3401.0.0, current version 3401.1.0)
	@executable_path/../Resources/lib/libgmodule-2.0.0.dylib (compatibility version 3401.0.0, current version 3401.1.0)
	@executable_path/../Resources/lib/libgthread-2.0.0.dylib (compatibility version 3401.0.0, current version 3401.1.0)
	@executable_path/../Resources/lib/libxml2.2.dylib (compatibility version 12.0.0, current version 12.0.0)
	@executable_path/../Resources/lib/libglib-2.0.0.dylib (compatibility version 3401.0.0, current version 3401.1.0)
	@executable_path/../Resources/lib/libintl.8.dylib (compatibility version 10.0.0, current version 10.1.0)
	@executable_path/../Resources/lib/libgstaudio-0.10.0.dylib (compatibility version 25.0.0, current version 25.0.0)
	/usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.0.0)

The lib directory already contains the base plugins (which need a little bit of trimming):

libgst*0.10.dylib
libgstapp-0.10.dylib
libgstaudio-0.10.dylib
libgstbase-0.10.dylib
libgstbasevideo-0.10.dylib
libgstcdda-0.10.dylib
libgstcheck-0.10.dylib
libgstcontroller-0.10.dylib
libgstdataprotocol-0.10.dylib
libgstfft-0.10.dylib
libgstinterfaces-0.10.dylib
libgstnet-0.10.dylib
libgstnetbuffer-0.10.dylib
libgstpbutils-0.10.dylib
libgstphotography-0.10.dylib
libgstreamer-0.10.dylib
libgstriff-0.10.dylib
libgstrtp-0.10.dylib
libgstrtsp-0.10.dylib
libgstsdp-0.10.dylib
libgstsignalprocessor-0.10.dylib
libgsttag-0.10.dylib
libgstvideo-0.10.dylib

And the following generic dylibs which are also used/included by gtk:

libgobject-2.0.0.dylib
libgmodule-2.0.0.dylib
libgthread-2.0.0.dylib
libxml2.2.dylib
libglib-2.0.0.dylib
libintl.8.dylib

And now the list of extras we need:

• libfaac.0.dylib:

  libfaac.0.dylib
  

• libfaad.0.dylib:

  libfaad.2.dylib
  

• libgstvorbis.so:

  libvorbisenc.2.dylib
  libvorbis.0.dylib
  

• libgstmad.so:

  libmad.0.dylib
  

• libgstlame.so:

  libmp3lame.0.dylib
  

• libgstflac.so:

  libFLAC.8.dylib
  

• libgstmpegaudioparse.so: none
• libgstspeex.so:

  libspeex.1.dylib
  

• libgstwavpack.so:

  libwavpack.1.dylib
  

• libgstwavparse.so: none

That is now what is included in the OSX builds as of r2931.

---

Notes:

• a number of codecs are sub-optimal on OSX (flac lacks assembler optimizations, opus build moans about the lack of "fast float approximations").
• opus support is not included since it is not supported in the gstreamer 0.10.x versions that build properly on OSX

[Antoine Martin]

The missing plugins error is fixed in r2933

Closing - this works OK-ish for now on OSX, just be aware of #249

[migration script]

this ticket has been moved to: ​https://github.com/Xpra-org/xpra/issues/289