hdmi

问题 I'm trying to use LibCEC for listen HDMI-CEC devices on my local network. I want to obtain all CEC information from all devices. Actually LibCEC give me information about broadcasting and direct messages to my raspberry pi, but not about direct messages between other devices (for example between my TV and my ps4). I want to undo this limitation, to be able to spy every messages on the network. I looked for the filter in LibCEC, but i didn't find where it was filtered. Does someone tried to

问题 I am looking for something uncommon: A device that would allow to merge the image coming from 2 outputs (HDMI, DVI, VGA or any other type of image output) into one final image displayed onscreen. The outputs can be of the same type (e.g. 2 HDMIs) or different, anything that works would do. In case that isn't clear, here is a simple schema: It could work in different ways, for example with a system of priority (e.g. output 1 write its image and the output 2 overwrite non transparent pixels),

问题 I am building an app to read HDMI input from android boxes (Amlogic and Realtek processors) and display in my app. I am aware that each different processors have different way to read HDMI input. For example with Amlogic, continuous HDMI stream can be read at hdmi://localhost:1/ and displayed in videoview. Certain other processors also follow a similar method and stream at one of (hdmi://localhost:0, hdmi://localhost:1, hdmi://localhost?port=1, hdmi://localhost?port=2) for developer to read

问题 I want to know whether there is a way to disable hdmi port of a android device without rooting it? 回答1: As of Android 4.2 (SDK level 17), the DisplayManager APIs (http://developer.android.com/reference/android/hardware/display/DisplayManager.html) let you detect external displays and the Presentation class (http://developer.android.com/reference/android/app/Presentation.html) lets you define alternative UI for external displays. Before that SDK level, though (e.g. on Kindle Fire devices

问题 I want to know whether there is a way to disable hdmi port of a android device without rooting it? 回答1: As of Android 4.2 (SDK level 17), the DisplayManager APIs (http://developer.android.com/reference/android/hardware/display/DisplayManager.html) let you detect external displays and the Presentation class (http://developer.android.com/reference/android/app/Presentation.html) lets you define alternative UI for external displays. Before that SDK level, though (e.g. on Kindle Fire devices

问题 I have a small idea for an app that would use video from an HDMI source on an iPad. Would someone that has experience working with external hardware/video/input signals point me in the right direction. I'll do the work obviously, I just need a little kick in the proper direction on where to start. Basically I just want to view video from an HDMI source in a view (UIView maybe) on my iPad. It really is that simple. Is AVFoundation all I need for this? Thanks for any links, tips, pointers,

问题 We required HDMI info in Nodejs and Electron. If any HDMI is connected with system then we have to do some specific task with the Electron application. 回答1: You can give a try with @senzil/cec-monitor package or simmilar to monitor the HDMI devices. 来源： https://stackoverflow.com/questions/54553635/how-to-detect-hdmi-device-is-connected-with-node-js

问题 Recently we flashed Android Things on raspberry Pi 3 and everything is working fine except sound. I tried connecting 3.5mm jack earphone and hdmi screen as well in different combinations like: Only earphone without hdmi display. hdmi monitor only. earphone connected to raspberry pi 3.5 audio jack and hdmi display is also connected. I attempted all these using adb command. example: adb shell am start -a android.intent.action.VIEW -d file:///sdcard/music/sample.mp3 -t audio/mp3 Alternatively,

问题 I am using a RPi connected through HDMI to a Samsung TV. I am attempting to trigger RPi processes so that they are only active when the HDMI output is being used by the TV. Effectively, I would like to start the process when the correct HDMI input is selected from the TV and terminate it when another TV source is selected. I have tried to use tvservice –s for that end, but the command’s output does not change depending on whether the TV is configured to use the RPi’s HDMI or any other source.

问题 In my search I found that, the Android SDK provides no support for controlling HDMI port activities and handling HDMI output, as of now. Though certain device manufacturers like Motorola (don't know if any other does that too) provide API's for a little better control. Below are the links to two of them, out of which the dual screen one (which suits my requirement pretty close) is deprecated. motorola hdmi status api motorola hdmi dual screen api Mirroring is the default behavior on