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by dividuum
Fri Apr 22, 2016 6:30 pm
Forum: Graphics programming
Topic: Kill the CLI frambebuffer
Replies: 5
Views: 2098

Re: Kill the CLI frambebuffer

The default console layer is -127 or something, so -10 should still result in a visible the omxplayer output. In info-beamer, I basically use this (except written in C):

Code: Select all

echo 1 > /sys/class/graphics/fb0/blank
This removes the console. You can restore it by writing '0' instead of '1'.
by dividuum
Thu Apr 14, 2016 3:46 pm
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

I'm currently working on a solution to use info-beamer at a stage projector. But to be more flexible, I want to stream the Videos from another Computer using an http-Stream. Is it possible to play the http-video-Stream directly with info-beamer? Just providing the url to util.videoplayer does not w...
by dividuum
Fri Mar 04, 2016 11:35 am
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

I would like to use info-beamer to show a couple of shorte movies (mpg4) like youtube videos at an information stand. Could you try using this code: https://github.com/dividuum/info-beamer-nodes/tree/master/videolist Just put the video files in the same directory and put their filenames into the pl...
by dividuum
Mon Feb 22, 2016 5:41 pm
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Re: Suggestions for an HDMI TV with proper CEC support

gkreidl wrote:Yes, kodi is shown in the CEC menu and I can switch between kodi and TV from the CEC menu using my remote.
Thank you so much for pointing me in the right direction! Time to go shopping.
by dividuum
Mon Feb 22, 2016 5:00 pm
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Re: Suggestions for an HDMI TV with proper CEC support

Samsung have rather cheap Monitor/TV combinations, 21.5, 23.6 and 27 inch, starting at around 170 € in Germany. CEC works with the RPi, tested with kodi. My google skills are really failing me today. I assume you mean this one: http://www.amazon.de/dp/B00XA8S1E6/ / http://www.samsung.com/de/support...
by dividuum
Mon Feb 22, 2016 4:15 pm
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Re: Suggestions for an HDMI TV with proper CEC support

klricks wrote:My Insignia TV, sold at Best Buy, has CEC support. It is called INLink.
Thanks for the information. It seems like Insignia isn't a brand that's easily available in Germany. Do you know the exact model number?
by dividuum
Mon Feb 22, 2016 4:09 pm
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Re: Suggestions for an HDMI TV with proper CEC support

I've had Samsung and Sony TVs and they have both supported CEC perfectly. Do you know which ones? Samsung seems to call CEC AnyNet+ and it seems that most lower priced devices don't support it. And the Sony TVs start at around 500 Euro which is a bit much for my intended use case. I would be happy ...
by dividuum
Mon Feb 22, 2016 3:54 pm
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Re: Suggestions for an HDMI TV with proper CEC support

GTR2Fan wrote:It's difficult to make recommendations when we have no idea even roughly where in the world you live.
For some reason I thought that didn't matter, but you're of course correct. I've updated my profile to 'Germany'.
by dividuum
Mon Feb 22, 2016 10:22 am
Forum: Advanced users
Topic: Suggestions for an HDMI TV with proper CEC support
Replies: 11
Views: 1860

Suggestions for an HDMI TV with proper CEC support

I need to purchase an HDMI TV screen to test some of the PIs HDMI features. Specifically I want to test HDMI audio support as well as CEC (most important is "Device OSD Name Transfer"). I tried searching for a device that offers all that, isn't too big (I don't want another 40" screen on my desk) an...
by dividuum
Sun Jan 31, 2016 9:04 pm
Forum: Graphics, sound and multimedia
Topic: Possible to show parts of screen on multiple monitors?
Replies: 1
Views: 439

Re: Possible to show parts of screen on multiple monitors?

If you can split a single big video into multiple parts, you might give my videowall code a try. It uses my software info-beamer pi to start playback of multiple videos on different devices at the same time. It does no further synchronization, so depending on the video length you might not get frame...
by dividuum
Sat Nov 07, 2015 11:21 pm
Forum: Graphics programming
Topic: Dispmanx - limit of number of displayed elements?
Replies: 11
Views: 3838

Re: Dispmanx - limit of number of displayed elements?

Depending on your use case you might investigate using OpenGLES instead of dispmanx. Instead of filling dispmanx rectangles you would then fill textures and compose the final output by drawing them on the screen. That way you only have a single dispmanx layer and won't run into the problems you've e...
by dividuum
Wed Sep 30, 2015 1:14 pm
Forum: Graphics programming
Topic: Render HTML and JS art Fullscreen, with GPU for VJ's
Replies: 16
Views: 5067

Re: Render HTML and JS art Fullscreen, with GPU for VJ's

I took that as a challenge and build something similar using info-beamer. I'm using shaders to draw the circles. Have a look at the code on github.

Image
by dividuum
Mon Sep 28, 2015 12:21 pm
Forum: OpenGLES
Topic: Texture uploading performance
Replies: 2
Views: 4038

Texture uploading performance

In my tool info-beamer it is possible to upload textures while running a visualizations. One use case is for example having an animated slide show that shows more images than could possibly be stored in GPU memory. If that slide show uses animations it's important that the texture upload doesn't hav...
by dividuum
Wed Sep 23, 2015 10:13 am
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

@nlazovic, take a look at the top of this forum page, I already responded to your question. If you send me the log output I'd be happy to help with your problem.
by dividuum
Wed Sep 23, 2015 12:12 am
Forum: C/C++
Topic: Using OMX.broadcom.image_encode on RPi 2 Model B
Replies: 10
Views: 1921

Re: Using OMX.broadcom.image_encode on RPi 2 Model B

The problem is, that OMX is an asynchronous API. When you call OMX_FillThisBuffer, the buffer isn't filled immediately. More likely it's being handed to some background thread that does the encoding. Once that's done the completion is signaled through a callback. Only then can you access the produce...
by dividuum
Fri Sep 18, 2015 2:17 pm
Forum: Graphics programming
Topic: Changing video resolution on the fly?
Replies: 17
Views: 69736

Re: Changing video resolution on the fly?

So I was wondering the this picture was still 1080p signal to the TV, wich does not makes sense since the HVS should limit is to 720p? The HVS doesn't limit layers to the physical size of the screen. You can place your layers outside the visible area. Just experiment a bit with the --win option of ...
by dividuum
Wed Sep 16, 2015 5:31 pm
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

I want to contribute but actually use part of the code to develop things completly new... Like VJ presentation, and even interactive art / games.. Most of those things are probably already possible by leveraging what info-beamer already offers: The scriptability using UDP/OSC packets or TCP and the...
by dividuum
Wed Sep 16, 2015 5:12 pm
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

Tried using info-beamer in portrait mode with 1-3 videos (mp4). in landscape mode it runs quite fine (40-50 fps). I tried both display_rotate=1 or 3 in /boot/config.txt using lua util.screen_transform In both cases I am experiencing significant degradation of fps (down to 5-6 fps). Is that expected...
by dividuum
Wed Sep 16, 2015 10:18 am
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

That's definitively something I'd love to do in the future. But I need to find a viable business model that supports it first. Do you want to contribute with development or are you looking for a free (as in beer) way of using info-beamer pi?
by dividuum
Sun Sep 06, 2015 7:32 am
Forum: Other projects
Topic: info-beamer for PI - A digital signage player and more...
Replies: 34
Views: 15718

Re: info-beamer for PI - A digital signage player and more..

is there a way to set z-index to objects being presented (text, video, image, ...)? That's not possible. The order is determined by the order the object are drawn. So just draw background objects first and overdraw them. If you have a dynamic scene where objects move around you have to manually sor...
by dividuum
Tue Sep 01, 2015 3:13 pm
Forum: Graphics, sound and multimedia
Topic: Switching between videos
Replies: 8
Views: 3180

Re: Switching between videos

My tool info-beamer pi can be used to do that. I quickly hacked together some code that should do what you asked for: It seamlessly loops one video (loop.mp4). You can then externally trigger the code to play an intermission video (intermission.mp4), which is either played completely or until you se...
by dividuum
Sat Aug 22, 2015 9:59 am
Forum: Graphics, sound and multimedia
Topic: Image overlay
Replies: 2
Views: 2739

Re: Image overlay

Overlaying information above other programs is relatively easy on the PI thanks to it's hardware video scaler which composes multiple layers and renders the result to the screen. By default there is only the framebuffer layer that is used by the linux console. I'm not entirely sure if X uses that th...
by dividuum
Thu Aug 20, 2015 3:05 pm
Forum: Graphics, sound and multimedia
Topic: RBP Video and Image Playback
Replies: 3
Views: 625

Re: RBP Video and Image Playback

There are various ways to interact with a running visualization. If you need realtime control, you can send UDP packets to the running visualization. Have a look at https://github.com/dividuum/info-beamer-nodes/tree/master/gauge for an example that uses this technique. node.alias sets an alias name ...
by dividuum
Thu Aug 20, 2015 11:37 am
Forum: OpenGLES
Topic: bit map in memory
Replies: 3
Views: 4421

Re: bit map in memory

You might ditch OpenGL and use the lower level dispmanx interface for that. The idea is to create a new dispmanx layer for your image data and update that each frame. I don't have any experience how fast you'll be able to update that, but it might be worth a try. For example code, have a look at /op...
by dividuum
Thu Aug 20, 2015 11:20 am
Forum: Graphics, sound and multimedia
Topic: RBP Video and Image Playback
Replies: 3
Views: 625

Re: RBP Video and Image Playback

My software info-beamer pi can do that. It's a scriptable toolbox for building visualizations. It runs from the terminal and uses OpenGLES to display videos, images and text (among other things). Videos end up in "texture objects", so you can rotate/scale/translate them before you draw them to the s...

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