blob: 6ec7edcdc92699255d9e776ea57fd055935c4a54 [file] [log] [blame]
/*
* libjingle
* Copyright 2013 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif
#import "RTCPeerConnection+Internal.h"
#import "RTCDataChannel+Internal.h"
#import "RTCEnumConverter.h"
#import "RTCICECandidate+Internal.h"
#import "RTCICEServer+Internal.h"
#import "RTCMediaConstraints+Internal.h"
#import "RTCMediaStream+Internal.h"
#import "RTCMediaStreamTrack+Internal.h"
#import "RTCPeerConnectionObserver.h"
#import "RTCSessionDescription+Internal.h"
#import "RTCSessionDescription.h"
#import "RTCSessionDescriptionDelegate.h"
#import "RTCStatsDelegate.h"
#import "RTCStatsReport+Internal.h"
#include <memory>
#include "webrtc/api/jsep.h"
NSString* const kRTCSessionDescriptionDelegateErrorDomain = @"RTCSDPError";
int const kRTCSessionDescriptionDelegateErrorCode = -1;
namespace webrtc {
class RTCCreateSessionDescriptionObserver
: public CreateSessionDescriptionObserver {
public:
RTCCreateSessionDescriptionObserver(
id<RTCSessionDescriptionDelegate> delegate,
RTCPeerConnection* peerConnection) {
_delegate = delegate;
_peerConnection = peerConnection;
}
void OnSuccess(SessionDescriptionInterface* desc) override {
RTCSessionDescription* session =
[[RTCSessionDescription alloc] initWithSessionDescription:desc];
[_delegate peerConnection:_peerConnection
didCreateSessionDescription:session
error:nil];
delete desc;
}
void OnFailure(const std::string& error) override {
NSString* str = @(error.c_str());
NSError* err =
[NSError errorWithDomain:kRTCSessionDescriptionDelegateErrorDomain
code:kRTCSessionDescriptionDelegateErrorCode
userInfo:@{@"error" : str}];
[_delegate peerConnection:_peerConnection
didCreateSessionDescription:nil
error:err];
}
private:
id<RTCSessionDescriptionDelegate> _delegate;
RTCPeerConnection* _peerConnection;
};
class RTCSetSessionDescriptionObserver : public SetSessionDescriptionObserver {
public:
RTCSetSessionDescriptionObserver(id<RTCSessionDescriptionDelegate> delegate,
RTCPeerConnection* peerConnection) {
_delegate = delegate;
_peerConnection = peerConnection;
}
void OnSuccess() override {
[_delegate peerConnection:_peerConnection
didSetSessionDescriptionWithError:nil];
}
void OnFailure(const std::string& error) override {
NSString* str = @(error.c_str());
NSError* err =
[NSError errorWithDomain:kRTCSessionDescriptionDelegateErrorDomain
code:kRTCSessionDescriptionDelegateErrorCode
userInfo:@{@"error" : str}];
[_delegate peerConnection:_peerConnection
didSetSessionDescriptionWithError:err];
}
private:
id<RTCSessionDescriptionDelegate> _delegate;
RTCPeerConnection* _peerConnection;
};
class RTCStatsObserver : public StatsObserver {
public:
RTCStatsObserver(id<RTCStatsDelegate> delegate,
RTCPeerConnection* peerConnection) {
_delegate = delegate;
_peerConnection = peerConnection;
}
void OnComplete(const StatsReports& reports) override {
NSMutableArray* stats = [NSMutableArray arrayWithCapacity:reports.size()];
for (const auto* report : reports) {
RTCStatsReport* statsReport =
[[RTCStatsReport alloc] initWithStatsReport:*report];
[stats addObject:statsReport];
}
[_delegate peerConnection:_peerConnection didGetStats:stats];
}
private:
id<RTCStatsDelegate> _delegate;
RTCPeerConnection* _peerConnection;
};
}
@implementation RTCPeerConnection {
NSMutableArray* _localStreams;
std::unique_ptr<webrtc::RTCPeerConnectionObserver> _observer;
rtc::scoped_refptr<webrtc::PeerConnectionInterface> _peerConnection;
}
- (BOOL)addICECandidate:(RTCICECandidate*)candidate {
std::unique_ptr<const webrtc::IceCandidateInterface> iceCandidate(
candidate.candidate);
return self.peerConnection->AddIceCandidate(iceCandidate.get());
}
- (BOOL)addStream:(RTCMediaStream*)stream {
BOOL ret = self.peerConnection->AddStream(stream.mediaStream);
if (!ret) {
return NO;
}
[_localStreams addObject:stream];
return YES;
}
- (RTCDataChannel*)createDataChannelWithLabel:(NSString*)label
config:(RTCDataChannelInit*)config {
std::string labelString([label UTF8String]);
rtc::scoped_refptr<webrtc::DataChannelInterface> dataChannel =
self.peerConnection->CreateDataChannel(labelString,
config.dataChannelInit);
return [[RTCDataChannel alloc] initWithDataChannel:dataChannel];
}
- (void)createAnswerWithDelegate:(id<RTCSessionDescriptionDelegate>)delegate
constraints:(RTCMediaConstraints*)constraints {
rtc::scoped_refptr<webrtc::RTCCreateSessionDescriptionObserver>
observer(new rtc::RefCountedObject<
webrtc::RTCCreateSessionDescriptionObserver>(delegate, self));
self.peerConnection->CreateAnswer(observer, constraints.constraints);
}
- (void)createOfferWithDelegate:(id<RTCSessionDescriptionDelegate>)delegate
constraints:(RTCMediaConstraints*)constraints {
rtc::scoped_refptr<webrtc::RTCCreateSessionDescriptionObserver>
observer(new rtc::RefCountedObject<
webrtc::RTCCreateSessionDescriptionObserver>(delegate, self));
self.peerConnection->CreateOffer(observer, constraints.constraints);
}
- (void)removeStream:(RTCMediaStream*)stream {
self.peerConnection->RemoveStream(stream.mediaStream);
[_localStreams removeObject:stream];
}
- (void)setLocalDescriptionWithDelegate:
(id<RTCSessionDescriptionDelegate>)delegate
sessionDescription:(RTCSessionDescription*)sdp {
rtc::scoped_refptr<webrtc::RTCSetSessionDescriptionObserver> observer(
new rtc::RefCountedObject<webrtc::RTCSetSessionDescriptionObserver>(
delegate, self));
self.peerConnection->SetLocalDescription(observer, sdp.sessionDescription);
}
- (void)setRemoteDescriptionWithDelegate:
(id<RTCSessionDescriptionDelegate>)delegate
sessionDescription:(RTCSessionDescription*)sdp {
rtc::scoped_refptr<webrtc::RTCSetSessionDescriptionObserver> observer(
new rtc::RefCountedObject<webrtc::RTCSetSessionDescriptionObserver>(
delegate, self));
self.peerConnection->SetRemoteDescription(observer, sdp.sessionDescription);
}
- (BOOL)setConfiguration:(RTCConfiguration *)configuration {
return self.peerConnection->SetConfiguration(
configuration.nativeConfiguration);
}
- (RTCSessionDescription*)localDescription {
const webrtc::SessionDescriptionInterface* sdi =
self.peerConnection->local_description();
return sdi ? [[RTCSessionDescription alloc] initWithSessionDescription:sdi]
: nil;
}
- (NSArray*)localStreams {
return [_localStreams copy];
}
- (RTCSessionDescription*)remoteDescription {
const webrtc::SessionDescriptionInterface* sdi =
self.peerConnection->remote_description();
return sdi ? [[RTCSessionDescription alloc] initWithSessionDescription:sdi]
: nil;
}
- (RTCICEConnectionState)iceConnectionState {
return [RTCEnumConverter
convertIceConnectionStateToObjC:self.peerConnection
->ice_connection_state()];
}
- (RTCICEGatheringState)iceGatheringState {
return [RTCEnumConverter
convertIceGatheringStateToObjC:self.peerConnection
->ice_gathering_state()];
}
- (RTCSignalingState)signalingState {
return [RTCEnumConverter
convertSignalingStateToObjC:self.peerConnection->signaling_state()];
}
- (void)close {
self.peerConnection->Close();
}
- (BOOL)getStatsWithDelegate:(id<RTCStatsDelegate>)delegate
mediaStreamTrack:(RTCMediaStreamTrack*)mediaStreamTrack
statsOutputLevel:(RTCStatsOutputLevel)statsOutputLevel {
rtc::scoped_refptr<webrtc::RTCStatsObserver> observer(
new rtc::RefCountedObject<webrtc::RTCStatsObserver>(delegate,
self));
webrtc::PeerConnectionInterface::StatsOutputLevel nativeOutputLevel =
[RTCEnumConverter convertStatsOutputLevelToNative:statsOutputLevel];
return self.peerConnection->GetStats(
observer, mediaStreamTrack.mediaTrack, nativeOutputLevel);
}
@end
@implementation RTCPeerConnection (Internal)
- (instancetype)initWithFactory:(webrtc::PeerConnectionFactoryInterface*)factory
iceServers:(const webrtc::PeerConnectionInterface::IceServers&)iceServers
constraints:(const webrtc::MediaConstraintsInterface*)constraints {
NSParameterAssert(factory != nullptr);
if (self = [super init]) {
webrtc::PeerConnectionInterface::RTCConfiguration config;
config.servers = iceServers;
_observer.reset(new webrtc::RTCPeerConnectionObserver(self));
_peerConnection = factory->CreatePeerConnection(
config,
constraints,
nullptr,
std::unique_ptr<rtc::RTCCertificateGeneratorInterface>(),
_observer.get());
_localStreams = [[NSMutableArray alloc] init];
}
return self;
}
- (instancetype)initWithFactory:(webrtc::PeerConnectionFactoryInterface *)factory
config:(const webrtc::PeerConnectionInterface::RTCConfiguration &)config
constraints:(const webrtc::MediaConstraintsInterface *)constraints
delegate:(id<RTCPeerConnectionDelegate>)delegate {
NSParameterAssert(factory);
if (self = [super init]) {
_observer.reset(new webrtc::RTCPeerConnectionObserver(self));
_peerConnection =
factory->CreatePeerConnection(
config,
constraints,
nullptr,
std::unique_ptr<rtc::RTCCertificateGeneratorInterface>(),
_observer.get());
_localStreams = [[NSMutableArray alloc] init];
_delegate = delegate;
}
return self;
}
- (rtc::scoped_refptr<webrtc::PeerConnectionInterface>)peerConnection {
return _peerConnection;
}
@end