Android/iOS WebRTC H264 and packetization-mode=0

[Sean Horton]

Hi,

Is there a known way to get H264 support on Android and iOS with `packetization-mode=0`? From what I've seen, mobile only supports `packetization-mode=1`.

If H264 and packetization-mode=0 is not supported on mobile, would it be something feasible for myself to add through VideoEncoder(Decoder)Factory? Are there any known guides or thoughts on how to go about this?

Thanks. 

[Sean Horton]

I'm not sure how safe the following is, but I was able to get both an h264 decoder and encoder with packetization-mode=0 working by;

1. Override `getSupportedCodecs()` on both `DefaultVideoEncoderFactory` and `DefaultVideoDecoderFactory`

2. If `super.getSupportedCodecs()` has an item with name "H264", I create a new `VideoCodecInfo` with param `packetization-mode=0` and whatever the existing `profile-level-id` was and add it to the array returned by getSupportedCodecs(). 

This seems to work fine from my testing on a limited set of testing devices. 

If it is valid I'm not sure why WebRTC does not return this by default.