How to use external H264 encoder?

[Usama Shah]

For H264 encoding WebRTC uses OpenH264 which does not support hardware acceleration. We use Nvidia hardware encoder for our real-time streaming and now we want to plug that into WebRTC server.

 - How can we do that?
 - Where to start?

If that is not possible, as FFmpeg is included with WebRTC,
 - can we use FFmpeg h264 encoder with hardware acceleration?

With WebRTC CPU usage in our case is pretty high for real time stream.
 - Does WebRTC provide some API to implement your own extension of encoder?

h264_encoder_impl looks like a starting point but I don't know what can be done with it.

[Eric Davies]

Are you talking chromium, android, mac OSX, linux, or Windows?

[Usama Shah]

Sorry, forgot to mention that. I am on Windows. h264_encoder_impl and ViEEncoder also appear useful. Is it somehow possible to send the externally encoded data?