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dividuum / info-beamer

The Multimedia Presenter for Lua (for commercial projects, use info-beamer pi instead)
https://info-beamer.com/
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layers for nodes? can i adress or change layer-level on raspberry-pi ? #38

Open ozett opened 8 years ago

ozett commented 8 years ago

hi, i am not good in coding, but playing basic functions with info-beamer. i love it! :smile:

first i wanted to beg for a cycling-function in the videoplaylist-sample. than i found the room-cycler fragment, copied nodes (i.e. videoplaylist with one stream) into it and now i can cycle between my RTSP webcam screens. WOW. i played with background and transparancy. really cool. with omxplayer i had with 192MB GPU split-screen-setting max 8 windows/streams. i will come to a test with info-beamer, if he beats this.

BUT in the meantime my question: can i set layer-level for different nodes?

what i want to achieve is playing RTSP streams on different layer with transparency, pop them up and vanish them on different layer.

may help me roughly going this direction? or layers are not adressable "inside" info-beamer nodes?

dividuum commented 8 years ago

If you use the normal way of playing video you don't need layers. The videos are rendered all within the same OpenGL layer. The order in which you :draw() them determines which video is drawn over each other.

Normally everything is inside a single OpenGL dispmanx (https://info-beamer.com/blog/raspberry-pi-hardware-video-scaler) layer. If you need better video performance it's possible to render videos outside of OpenGL. By default everything is in a single layer.

ozett commented 8 years ago

can i change the order (means layer up/down) while playing a video? or do i have to stop/start the videop programmatically to push it on another Layer/level to move it in front or back..? (my idea is to play with transparancey and layer/level overblending..)

dividuum commented 8 years ago

As I said: There are no layers. Just draw video2 above video1, if you want video2 to be in front of video1. Reverse the draw order if you want video1 to be in front.

ozett commented 8 years ago

ok. thanks for clarifying