webrtc/api/crypto/framedecryptorinterface.h
Benjamin Wright d81ac953aa Injects FrameEncryptorInterface into RtpSender.
This change injects the FrameEncryptorInterface and the FrameDecryptorInterface
into the RtpSenderInterface and RtpReceiverInterface respectively. This is the
second stage of the injection. In a follow up CL non owning pointers to these
values will be passed down into the media channel.

This change also updates the corresponding mock files.

Bug: webrtc:9681
Change-Id: I964084fc270e10af9d1127979e713493e6fbba7d
Reviewed-on: https://webrtc-review.googlesource.com/96625
Commit-Queue: Benjamin Wright <benwright@webrtc.org>
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24489}
2018-08-30 00:33:54 +00:00

52 lines
2.1 KiB
C++

/*
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef API_CRYPTO_FRAMEDECRYPTORINTERFACE_H_
#define API_CRYPTO_FRAMEDECRYPTORINTERFACE_H_
#include "api/array_view.h"
#include "api/mediatypes.h"
#include "rtc_base/refcount.h"
namespace webrtc {
// FrameDecryptorInterface allows users to provide a custom decryption
// implementation for all incoming audio and video frames. The user must also
// provide a FrameEncryptorInterface to be able to encrypt the frames being
// sent out of the device. Note this is an additional layer of encyrption in
// addition to the standard SRTP mechanism and is not intended to be used
// without it. You may assume that this interface will have the same lifetime
// as the RTPReceiver it is attached to. It must only be attached to one
// RTPReceiver.
// Note:
// This interface is not ready for production use.
class FrameDecryptorInterface : public rtc::RefCountInterface {
public:
~FrameDecryptorInterface() override {}
// Attempts to decrypt the encrypted frame. You may assume the frame size will
// be allocated to the size returned from GetOutputSize. You may assume that
// the frames are in order if SRTP is enabled. The stream is not provided here
// and it is up to the implementor to transport this information to the
// receiver if they care about it.
// TODO(benwright) integrate error codes
virtual bool Decrypt(cricket::MediaType media_type,
rtc::ArrayView<const uint8_t> encrypted_frame,
rtc::ArrayView<uint8_t> frame) = 0;
// Returns the total required length in bytes for the output of the
// decryption.
virtual size_t GetOutputSize(cricket::MediaType media_type,
size_t encrypted_frame_size) = 0;
};
} // namespace webrtc
#endif // API_CRYPTO_FRAMEDECRYPTORINTERFACE_H_