[meta-freescale] gst-plugins-fsl based on Gstreamer 1.0

[Philip Craig]

On Thu, Aug 8, 2013 at 12:58 PM, Ashwin Kirpalani <akcooper8 at gmail.com> wrote:
> There is a porting guide
> here:http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-porting-1.0.html
>
> Not quite sure how much work it is to port gst-fsl-plugins but I'll give it
> a try and post my progress

I briefly looked at porting the VPU codecs, and decided that it wasn't
worth trying to do a simple port. There were two main reasons:

- gst-fsl-plugins uses hacks to handle DMA buffers with zero copy.
These hacks made sense in gstreamer 0.10, but would be hard to port
and shouldn't be needed in gstreamer 1.0.
- gstreamer 1.0 now has GstVideoEncoder and GstVideoDecoder base
classes. Using these would make it simpler to handle future gstreamer
changes.

I have written very basic H.264 plugins for gstreamer 1.0 that use the
GstVideoEncoder/Decoder base classes, but I dropped a lot of features
(including zero copy) and have only tested them in one specific use
case, so I wouldn't recommend trying to use them unless you are
willing to fix bugs and add back in the features you need. I can make
these available if there is interest. For reference, my current use
case is live streaming of 720p video (no audio) on i.MX6. I expect I
have completely messed up the timestamping support too :)

I have also ported the v4l2src plugin (again with many features
dropped). I would prefer not to have done this, but unfortunately the
Freescale CSI driver doesn't correctly implement the v4l2 interface.
The standard v4l2sink plugin works with LVDS. It doesn't work with
HDMI, but I haven't investigated why yet.


> On Wed, Aug 7, 2013 at 3:40 PM, Sandoval Gonzalez Leonardo-B42214
> <B42214 at freescale.com> wrote:
>>
>> BTW, seems that Yocto 1.5 will have GST 1.0
>>
>> https://wiki.yoctoproject.org/wiki/Yocto_1.5_Features
>>
>> Leo
>> ________________________________________
>> From: meta-freescale-bounces at yoctoproject.org
>> [meta-freescale-bounces at yoctoproject.org] on behalf of Daiane Angolini
>> [daiane.angolini at freescale.com]
>> Sent: Wednesday, August 07, 2013 2:35 PM
>> To: Ashwin Kirpalani
>> Cc: meta-freescale at yoctoproject.org
>> Subject: Re: [meta-freescale] gst-plugins-fsl based on Gstreamer 1.0
>>
>> On 08/07/2013 04:23 PM, Ashwin Kirpalani wrote:
>> > Currently, gst-fsl-plugins 3.0.8 (latest version) is based off of
>> > Gstreamer 0.10.36. Is there any plan on freescale's part for upgrading
>> > this to use Gstreamer 1.0? I want to be able to use some of the features
>> > in 1.0. Thanks
>>
>> There is no official plan.
>>
>> You can create a SR asking for the roadmap, if you feel like
>>
>>
>> --
>> Daiane
>>
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>> meta-freescale at yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/meta-freescale
>>
>>
>
>
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