webrtc/api/rtp_transceiver_interface.cc
Markus Handell 0357b3e7b6 RtpTransceiverInterface: add header_extensions_to_offer()
This change adds exposure of a new transceiver method for getting
the total set of supported extensions stored as an attribute,
and their direction. If the direction is kStopped, the extension
is not signalled in Unified Plan SDP negotiation.

Note: SDP negotiation is not modified by this change.

Changes:
- RtpHeaderExtensionCapability gets a new RtpTransceiverDirection,
  indicating either kStopped (extension available but not signalled),
  or other (extension signalled).
- RtpTransceiver gets the new method as described above. The
  default value of the attribute comes from the voice and video
  engines as before.

https://chromestatus.com/feature/5680189201711104.
go/rtp-header-extension-ip
Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/65YdUi02yZk

Bug: chromium:1051821
Change-Id: I440443b474db5b1cfe8c6b25b6c10a3ff9c21a8c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/170235
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30800}
2020-03-16 13:16:42 +00:00

44 lines
1.2 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.
*/
#include "api/rtp_transceiver_interface.h"
#include "rtc_base/checks.h"
namespace webrtc {
RtpTransceiverInit::RtpTransceiverInit() = default;
RtpTransceiverInit::RtpTransceiverInit(const RtpTransceiverInit& rhs) = default;
RtpTransceiverInit::~RtpTransceiverInit() = default;
absl::optional<RtpTransceiverDirection>
RtpTransceiverInterface::fired_direction() const {
return absl::nullopt;
}
RTCError RtpTransceiverInterface::SetCodecPreferences(
rtc::ArrayView<RtpCodecCapability>) {
RTC_NOTREACHED() << "Not implemented";
return {};
}
std::vector<RtpCodecCapability> RtpTransceiverInterface::codec_preferences()
const {
return {};
}
std::vector<RtpHeaderExtensionCapability>
RtpTransceiverInterface::HeaderExtensionsToOffer() const {
return {};
}
} // namespace webrtc