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Make OnAddStream and OnRemoveStream not required

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This changes PeerConnectionObserver to not default the stream
events as pure virtual. Applications which have switched to using
OnAddTrack and OnRemoveTrack will no longer need to implement
these callbacks.

Bug: webrtc:8587
Change-Id: I659ce7b5a208ebfcb29e899dd17916ae0072d3cc
Reviewed-on: https://webrtc-review.googlesource.com/39384
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Reviewed-by: Peter Thatcher <pthatcher@webrtc.org>
Commit-Queue: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21665}
This commit is contained in:
Steve Anton
2018-01-16 10:11:06 -08:00
committed by Commit Bot
parent f6464c9ef7
commit 772eb2115a
1 changed files with 7 additions and 12 deletions
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19
api/peerconnectioninterface.h
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@ -976,27 +976,22 @@ class PeerConnectionInterface : public rtc::RefCountInterface {
// Application should implement these methods.
class PeerConnectionObserver {
public:
enum StateType {
kSignalingState,
kIceState,
};
virtual ~PeerConnectionObserver() = default;
// Triggered when the SignalingState changed.
virtual void OnSignalingChange(
PeerConnectionInterface::SignalingState new_state) = 0;
// TODO(deadbeef): Once all subclasses override the scoped_refptr versions
// of the below three methods, make them pure virtual and remove the raw
// pointer version.
// Triggered when media is received on a new stream from remote peer.
virtual void OnAddStream(rtc::scoped_refptr<MediaStreamInterface> stream) = 0;
// Deprecated: This callback will no longer be fired with Unified Plan
// semantics. Consider switching to OnAddTrack.
virtual void OnAddStream(rtc::scoped_refptr<MediaStreamInterface> stream) {}
// Triggered when a remote peer close a stream.
virtual void OnRemoveStream(
rtc::scoped_refptr<MediaStreamInterface> stream) = 0;
// Deprecated: This callback will no longer be fired with Unified Plan
// semantics.
virtual void OnRemoveStream(rtc::scoped_refptr<MediaStreamInterface> stream) {
}
// Triggered when a remote peer opens a data channel.
virtual void OnDataChannel(