Wrong frames in landscape mode

[lbielski]

Hi!

I'm trying to use minicap with my Nexus 4 (api 22) and I have a problem with frames which I get when the device is rotated into a landscape mode.
I start minicap with the following command:
LD_LIBRARY_PATH=/data/local/tmp/minicap-devel /data/local/tmp/minicap-devel/minicap -P 768x1280@384x640/0

I consume the data with a client written in Java and it works beautifully in portrait mode.
As soon as I rotate the phone into a landscape I get this image:

In my Java client I'm just reading the frame and then decoding it from JPEG using ImageIO.
Is it a decoding issue or rotation is not supported yet?

[sorccu]

Just read the README. You need to detect rotation changes with something
and then restart minicap.

On Sunday, 29 November 2015, lbielski [email protected] wrote:

Hi!

I'm trying to use minicap with my Nexus 4 (api 22) and I have a problem
with frames which I get when the device is rotated into a landscape mode.
I start minicap with the following command:
LD_LIBRARY_PATH=/data/local/tmp/minicap-devel
/data/local/tmp/minicap-devel/minicap -P 768x1280@384x640/0

I consume the data with a client written in Java and it works beautifully
in portrait mode.
As soon as I rotate the phone into a landscape I get this image:
[image: minicap_rotated]
https://cloud.githubusercontent.com/assets/3857029/11455380/d14b67d4-96b0-11e5-90e9-a0b5357f373c.png

In my Java client I'm just reading the frame and then decoding it from
JPEG using ImageIO.
Is it a decoding issue or rotation is not supported yet?

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Reply to this email directly or view it on GitHub
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[lbielski]

Thanks for the answer!

Actually I read the readme (otherwise I wouldn't be able to implement a client), and it says that if I'm in always upright quirk mode I should take it into account while rendering: "This needs to be taken into account when rendering the image."

So I assumed that I should get a rotated landscape image and then rotate it while rendering.

Any suggestions how I can detect the rotation changes?

[sorccu]

If the quirks flags say the device has QUIRK_ALWAYS_UPRIGHT, then it means that when rotation is 0 or 180, you get a portrait image that's never upside down, or if rotation is 90 or 270, a landscape image that's never upside down.

You can try RotationWatcher.apk like mentioned in the README.

[sorccu]

Also, I know it sounds stupid that you have to do it that way, but it's due to limitations of the private APIs.

[lbielski]

I'm so sorry - missed that portion of the README :(
Now everything is clear.
Thanks for your help!