iMX6 - 90 Video Rotation Support

iMX6 - 90 Video Rotation Support

[Marco Sandrelli]

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Hi Daiane / Otavio,

we have some customs iMX6 boards with Freescale BSP 4.1.0, is it 
possible rotate Video Playback of 90° with mfw_v4lsink plugin?

I tried to rotate a video with this pipeline :

/root@imx6-qsdl# gst-launch-0.10 playbin2 
uri=file:///opt/SAMPLE/big_buck_bunny_640x360.mp4 
video-sink="mfw_v4lsink rotate=90 disp-width=800 disp-height=600"

/This pipeline works only if the display is 800x600, with a screen 
1920x1080 this solution doesn't work.
This problems are solved in the last Freescale BSP and gstreamer libraries?

Thank you,
Marco Sandrelli



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Re: iMX6 - 90 Video Rotation Support

[Daiane Angolini]

On Thu, May 7, 2015 at 12:57 PM, Marco Sandrelli
<marco.sandrelli@seco.it> wrote:
> Hi Daiane / Otavio,
>

Hi Marco,

> we have some customs iMX6 boards with Freescale BSP 4.1.0, is it possible
> rotate Video Playback of 90° with mfw_v4lsink plugin?

What is BSP 4.1.0? Kernel 3.0.35?

There are several changes since kernel 3.0.35, including changes on
multimedia libs.

I cannot remember if it worked or not on that time (you know, too much
version numbers in my mind), but I remember I made some rotations
using gstreamer in the past.

>
> I tried to rotate a video with this pipeline :
>
> root@imx6-qsdl# gst-launch-0.10 playbin2
> uri=file:///opt/SAMPLE/big_buck_bunny_640x360.mp4 video-sink="mfw_v4lsink
> rotate=90 disp-width=800 disp-height=600"
>
> This pipeline works only if the display is 800x600, with a screen 1920x1080
> this solution doesn't work.

I would say it may be due to IPU limitation, but in fact I don't
remember if mfw_v4lsink from 3.0.35 used IPU or VPU to rotate.

> This problems are solved in the last Freescale BSP and gstreamer libraries?

I cannot remember the last time I worked with a rotation problem for
gstreamer (4 years maybe?) But in a quick search on imx.community I
was not able to find anyone asking for help on this regard in last 1
year.

If you can evaluate the latest 3.14 release I strongly recommend ;)

Daiane
>
> Thank you,
> Marco Sandrelli
>
>

Re: iMX6 - 90 Video Rotation Support

[Otavio Salvador]

On Thu, May 7, 2015 at 1:51 PM, Daiane Angolini <daiane.list@gmail.com> wrote:
> On Thu, May 7, 2015 at 12:57 PM, Marco Sandrelli
> <marco.sandrelli@seco.it> wrote:
...
>> I tried to rotate a video with this pipeline :
>>
>> root@imx6-qsdl# gst-launch-0.10 playbin2
>> uri=file:///opt/SAMPLE/big_buck_bunny_640x360.mp4 video-sink="mfw_v4lsink
>> rotate=90 disp-width=800 disp-height=600"
>>
>> This pipeline works only if the display is 800x600, with a screen 1920x1080
>> this solution doesn't work.
>
> I would say it may be due to IPU limitation, but in fact I don't
> remember if mfw_v4lsink from 3.0.35 used IPU or VPU to rotate.

We have customers doing rotation relying on QtMultimedia. I didn't try
to do it in GStreamer itself.

-- 
Otavio Salvador                             O.S. Systems
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