Insertable streams

[Christophe Chaillon]

Hi,

I already have a working webrtc application (C++, M89) which can send and receive streams.

I would like to add some information to each video frames.

I made a class which inherit of webrtc::FrameEncryptorInterface

and gave it to the RtpStreamSender using the method SetFrameEncryptor

Now the problem is that the method Encrypt of my class is never called.

I found that the call of Encrypt is cancelled in RTPSenderVideo::SendVideo by this condition :

  bool has_generic_descriptor =

      first_packet->HasExtension<RtpGenericFrameDescriptorExtension00>() ||

      first_packet->HasExtension<RtpDependencyDescriptorExtension>();

  if (frame_encryptor_ != nullptr) {

    if (!has_generic_descriptor) {

      return false;

    }

How can I add one of these extensions to pass the condition ?

Is there a better or a more simple way to add information to a frame ?

Regards,

Christophe Chaillon

[Ivan Hutomo]

Have you found any solution yet?

[Artiom Khachaturian]

check that webrtc::CryptoOptions::require_frame_encryption (which is a part of webrtc::PeerConnectionInterface::RTCConfiguration) is true

[Ivan Hutomo]

Hi, I already can implement simple XOR encryption using FrameEncryptor interface, it works really well until I try to use AES_GCM. When I used AES it cause a force close in my android application after a few seconds. Do you know any solution for this? What encryption method did you all use?