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Is it possible and if so “how” would one create a “fake” Camera in an Android application. By “fake” I mean an all software creation that simply looks like a regular Camera to the OS but in actuality takes a Bitmap or byte array as its input data. I want to use such a device with a MediaRecorder to create h.264 videos.
Things this could be used for:
Caveats: No rooting and no ROM modification
I think what you are looking for is a way to encode videos to H.264 in a way similar to what MediaRecorder does but not from the camera. You do not particularly care whether this is done with a “fake camera” or in some other way, correct? In that case…
You can use the MediaCodec API available in Android 4.1 and later. You can just give it a series of images and it will create video encoded with (where available) the hardware encoder. Some sample code: Create video from screen grabs in android and Encoding H.264 from camera with Android MediaCodec