On Tue, Jun 5, 2012 at 4:39 PM, Gustavo Sverzut Barbieri
<barbi...@profusion.mobi> wrote:
> On Tue, Jun 5, 2012 at 4:22 AM, Sohyun Kim <anna1014....@samsung.com> wrote:
>> I've made a patch for emotion-gstreamer.
>> When I tested video playing using emotion on the device, the frame rate was 
>> no good enough.
>> So I added a filter using fimc to resize and convert color on the device.
>>
>> When the size of image object in the emotion object is smaller than 80% of 
>> video size, I added a fimcconvert element to the pipeline.
>> The fimcconvert element is distributed in Samsung to use internally, so if 
>> the element exists, it is added to the pipeline.
>
> is this opensource or generic?

The gstreamer plugin code is proprietary I think (need ot check that),
but the driver is open source and already mainline in linux kernel
since a few year. So it's just the user space glue (the gstreamer
plugins) that is not public.

> If it's restricted to samsung hw, then please keep this a patchset for
> your platforms.
>
> If it's public, then could you share a timeline to get his accepted in
> Gstreamer's plugin "base" or at least "good" set? It would be nice if
> the decodebin would use it automatically, improving all the users of
> such helper, including emotion.

Problem is gstreamer playbin doesn't handle this kind of plugins at
the moment. There is some work to do on gstreamer side before it can
get this kind of plugins in correctly (not in a hackish way).

In some way this patch is a work around gstreamer limitation and the
fact that it lack some feature. The thing is we need this feature and
maybe more than for just Samsung hardware (colorspace convertion and
scaledown in an optimized way). This patch gave the infra to work
around a limitation in a hackish way, I agree, but the time needed to
fix gstreamer is much higher than if we do it on our side.

I see that as a temporary mesure until gstreamer 1.0 is out, device
maker start to adopt it and we can start to fix it correctly.
-- 
Cedric BAIL

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