问题:

I have a single, fullscreen SurfaceView. And I have multiple network streams with h264 video which I can decode using MediaCodec. Is it possible to specify to which coordinates of the Surface will the video be rendered? So I can create kind of video mozaic?

回答1:

No, that's not possible. You'll need to use multiple SurfaceTextures instead, one per video decoder, and render all the textures into one view using Open GL.

See https://source.android.com/devices/graphics/architecture.html for more explanations on how this works; in particular, each Surface can only have one producer and one consumer.

回答2:

In single SurfaceView - no. For more information you can explore SurfaceView source code. Maybe some effect of mosaic you can create using the few SurfaceView and adding special byte buffer trimer - to combine one video to several SV and getting full video.

But anyway! It will not be a good idea, if we talk about performance.