Re: [Interest] Ip-Cam & MJPEG with QT 4.8

2014-02-11 Thread Mandeep Sandhu
Do you have GStreamer ported to your particular embedded h/w? Qt uses GStreamer for all the multimedia heavy-lifting on Linux based systems. So if you have GStreamer plugins working for your h/w then it should work via Qt too as thats what Qt'll be using internally. -mandeep On Wed, Feb 12, 20

Re: [Interest] Fastest Way to convert a QVideoFrame to an QImage?

2014-02-11 Thread Thiago Macieira
Em ter 11 fev 2014, às 14:32:10, Jason H escreveu: > constuchar*bits=frame.bits(); > for(inty=0;y { > QRgb*scanLine=(QRgb*)converted.scanLine(y); > for(intx=0;x { > intc=bits[y*frame.width()+x]; > scanLine[x]=qRgba(c,c,c,255); > } > } You should add spaces, otherwise your code won't compile. You

[Interest] Fastest Way to convert a QVideoFrame to an QImage?

2014-02-11 Thread Jason H
I've mentioned I'm doing some bar-code scanning, and grayscale is fine, though the answer should be the same for color even if its a little more work. So that's the extent of this inquiry. Also, assume no GPU. QImage does not support the popular YUV video formats. Foruantely, Y (8-bit gray) is

Re: [Interest] iPad mini Retina 2048 x 1536 display resolution issue with QtQuick apps

2014-02-11 Thread Etienne Sandré-Chardonnal
There are plenty of non-Qt stuff about this, for instance: http://stackoverflow.com/questions/10078444/xcode-coordinates-for-ipad-retina-displays 2014-02-11 22:54 GMT+01:00 Etienne Sandré-Chardonnal : > In fact, by default iOs apps are run in a compatibility mode with the > lower non-retina res

Re: [Interest] iPad mini Retina 2048 x 1536 display resolution issue with QtQuick apps

2014-02-11 Thread Etienne Sandré-Chardonnal
In fact, by default iOs apps are run in a compatibility mode with the lower non-retina resolution. The device, though, draws fonts and primitives in high res, but the app has a 1024x768 logical screen. There is a native high res mode where you directly adress the 2048x1536 pixels, but it requires t

Re: [Interest] iPad mini Retina 2048 x 1536 display resolution issue with QtQuick apps

2014-02-11 Thread VStevenP
Or perhaps the behavior I mentioned below is a feature?  Treat every iPad as 1024 x 768 for easy app compatibility across the different iPad models, some of which have 2X the display resolution of the older ones? - VStevenP - Original Message - From: VStevenP To: interest Cc: Sent:

[Interest] iPad mini Retina 2048 x 1536 display resolution issue with QtQuick apps

2014-02-11 Thread VStevenP
I just got an iPad mini retina 2048 x 1536 for developing QtQuick apps. If I set the width and height of my top-level QML Rectangle to 2048 x 1536, it overflows the screen by 2x in each dimension.  So it's seems like there's a mistaken doubling of pixel dimensions for rendering for this iPad mod

[Interest] AndroidManifest always requires android.permission.CAMERA

2014-02-11 Thread Bruno Coudoin
Hi, After publishing my application in the play store I am not seing my application on Nexus 7 first gen. Looking at some forums I found that since this model has no back camera and only a front one it is excluded when the manifest requires one with "android.permission.CAMERA". I tried to add

[Interest] Ip-Cam & MJPEG with QT 4.8

2014-02-11 Thread Simone
Hello, does somebody know how to display a video stream from an IP camera, which support MJPEG format? Is it possible with QT 4.8 ? My target system is an embedded linux device. Thanks Simone ___ Interest mailing list Interest@qt-project.org h

[Interest] Slow animations/video playback with Qt Quick 2 on some hardware platforms

2014-02-11 Thread Benjamin Federau
Hi. In a larger QML application I face some performance issue(?) with Qt Quick 2 and animations/video playback. I broke this down to a simple QML test application that shows the issue. I see this on different platforms and Qt 5 versions. The OS is Ubuntu 12.04.  with X and matchbox or OpenBox

[Interest] Mac Combobox height in toolbar

2014-02-11 Thread Phil Hannent
Hi, I have added a QCombobox to a QToolbar, which works nicely on Windows, however on the Mac its not full height. http://www.hannent.co.uk/temp/mac-qcombobox-height.png Is there something I should be doing to force it to be the full height of the toolbar on the Mac? Regards Phil __

Re: [Interest] QAbstractItemModel

2014-02-11 Thread Alejandro Exojo
2014-02-10 16:26 GMT+01:00 Graham Labdon : > As expected when an edit is completed my setData method gets called and I can > set the relevant items data. > However, this does not update the underlying data and I am struggling to see > how this is done. When you create a class based on QAbstractI

Re: [Interest] Google Summer of Code

2014-02-11 Thread Alejandro Exojo
2014-02-10 13:19 GMT+01:00 Joshua W Joseph : > Will Qt be participating in Google Summer of Code 2014? > > Does anyone know of a Qt based project that is participating? At least some time ago, VLC participated. They switched to Qt some time ago, and IMHO they still have to make some good use of it