On Wed, 3 Mar 2010, Carsten Haitzler (The Rasterman) wrote:

> On Tue, 2 Mar 2010 10:20:18 +0100 (CET) Vincent Torri <vto...@univ-evry.fr>
> said:
>>
>> I've attached a tarball containing the evas sink for gstreamer, a small
>> test example and a small video (ogg/theora, 48 frames). You must have
>> gstreamer and gstreamer-plugins-base dev packages to build everything
>>
>> 1) Create the directory ~/.gstreamer-0.10/plugins
>>
>> 2) make (to build the sink and the test, and install the plugin)
>>
>> 3) ./test (to run the test)
>>
>> The plugin is not complete yet, but it's a good start. What is remaining,
>> mainly, is to managed YUV files and maybe adding mor properties. I'll add
>> it later.
>>
>> Question: should this sink goes to emotion dir, or gstreamer repo ? That
>> is, could it be used elsewhere (like in webkit-efl, for example) ?
>>
>> Vincent
>>
>> PS: thanks to Nicolas Aguirre for his help with cond/mutex. I'll never
>> understand that stuff...
>
> imoh - it probably belongs in emotion... but right now its a rgb(a) sink only

Yes. First, i want to make it solid with BGR or BGRA or BGRx (4 chans, no 
alpha). They are all the same except the padding which is 3 or 4. For 
example, there is a deadlock in the new code. I don't want to add features 
until the problem is solved.

> which means its really not of any great use. once its yuv... you can finally
> get acceleration for yuv->rgb+scale (right now yuv->rgb will be done by
> gstreamer in software and then if you use evas's gl engine - u could get
> scaling accel - but its an rgba upload of pixels - and as such thats 32bit per
> pixel not the 12 bits that yuv would be - so more than double the upload
> bandwidth).

I know how to deal with YUV (YV12 or I420) as i did it in emotion. 
I'll add that support later (note the caps that are commented at the 
beginning of evassink.c).

> i'd say make it do yuv and put it in emotion as part  of the
> gtsremaer module. expose the sink to gst runtime inside emotion (it doesnt 
> need
> a .so installed if u supply your own sink from the app - right?)

There are several locations where gstreamer searches the modules :

  * the prefix of gstreamer + lib/gstreamer-0.10
  * $HOME/.gstreamer-0.10/plugins
  * the value of the env var GST_PLUGIN_PATH
  * the path passed to the command line option --gst-plugin-path (if
    the app uses argc/argv and if gst is correctly initialized)

Vincent

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
enlightenment-devel mailing list
enlightenment-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/enlightenment-devel

Reply via email to