[Feature Request] Getting RGB (not ARGB) pixels from Camera

[itlancer]

Feature Description

AIR should support to get RGB (not ARGB) pixels from Camera.
First of all, images from classical RGB cameras cannot return alpha channel by itself. So alpha channel is useless for RGB cameras.
Moreover it consumes extra bytes volume (in terms of storage/transferring).
And a lot of image processing/computer vision/OpenCV algorithms wait on processing input formats like:

• [R, G, B, R, G, B....] (channel value per index)
• [RGB, RGB....] (pixel color value per index)
• or [BGR, BGR....] and something like that
  no alpha channel.

So if you need to use some image processing algorithms - you need to convert [ARGB, ARGB....] byte arrays to another format. And if you need to use processing in "real time" - it should be done for every frame. Its too heavy extra processing which I wish to avoid. Especially for Android: #1980

Right now by Camera::copyToByteArray() https://airsdk.dev/reference/actionscript/3.0/flash/media/Camera.html#copyToByteArray() or by Camera::copyToVector() https://airsdk.dev/reference/actionscript/3.0/flash/media/Camera.html#copyToVector() you will get "32-bit unmultiplied pixel values" (ARGB).
The same if you try to use BitmapData::copyPixelsToByteArray() https://airsdk.dev/reference/actionscript/3.0/flash/display/BitmapData.html#copyPixelsToByteArray()

It will be great to have some method to get ByteArray from camera image only with necessary channels and in requested format. For example: ARGB, BGRA, RGB, BGR, .... unmultiplied or premultiplied. Also will be great the same feature for any BitmapData (not from camera image).

Related issues:
#2029
#1344
#305

Known Workarounds

• Write own native extension for camera usage.
• Convert each frame bytes to necessary format (overhead).