rhubarb-lip-sync/rhubarb/lib/webrtc-8d2248ff/webrtc/examples/objc/AppRTCDemo/ios/ARDVideoCallViewController.m

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2016-06-21 20:13:05 +00:00
/*
* Copyright 2015 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.
*/
#import "ARDVideoCallViewController.h"
#import "webrtc/modules/audio_device/ios/objc/RTCAudioSession.h"
#import "WebRTC/RTCAVFoundationVideoSource.h"
#import "WebRTC/RTCDispatcher.h"
#import "WebRTC/RTCLogging.h"
#import "ARDAppClient.h"
#import "ARDVideoCallView.h"
@interface ARDVideoCallViewController () <ARDAppClientDelegate,
ARDVideoCallViewDelegate>
@property(nonatomic, strong) RTCVideoTrack *localVideoTrack;
@property(nonatomic, strong) RTCVideoTrack *remoteVideoTrack;
@property(nonatomic, readonly) ARDVideoCallView *videoCallView;
@end
@implementation ARDVideoCallViewController {
ARDAppClient *_client;
RTCVideoTrack *_remoteVideoTrack;
RTCVideoTrack *_localVideoTrack;
AVAudioSessionPortOverride _portOverride;
}
@synthesize videoCallView = _videoCallView;
@synthesize delegate = _delegate;
- (instancetype)initForRoom:(NSString *)room
isLoopback:(BOOL)isLoopback
isAudioOnly:(BOOL)isAudioOnly
delegate:(id<ARDVideoCallViewControllerDelegate>)delegate {
if (self = [super init]) {
_delegate = delegate;
_client = [[ARDAppClient alloc] initWithDelegate:self];
[_client connectToRoomWithId:room
isLoopback:isLoopback
isAudioOnly:isAudioOnly];
}
return self;
}
- (void)loadView {
_videoCallView = [[ARDVideoCallView alloc] initWithFrame:CGRectZero];
_videoCallView.delegate = self;
_videoCallView.statusLabel.text =
[self statusTextForState:RTCIceConnectionStateNew];
self.view = _videoCallView;
}
#pragma mark - ARDAppClientDelegate
- (void)appClient:(ARDAppClient *)client
didChangeState:(ARDAppClientState)state {
switch (state) {
case kARDAppClientStateConnected:
RTCLog(@"Client connected.");
break;
case kARDAppClientStateConnecting:
RTCLog(@"Client connecting.");
break;
case kARDAppClientStateDisconnected:
RTCLog(@"Client disconnected.");
[self hangup];
break;
}
}
- (void)appClient:(ARDAppClient *)client
didChangeConnectionState:(RTCIceConnectionState)state {
RTCLog(@"ICE state changed: %ld", (long)state);
__weak ARDVideoCallViewController *weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
ARDVideoCallViewController *strongSelf = weakSelf;
strongSelf.videoCallView.statusLabel.text =
[strongSelf statusTextForState:state];
});
}
- (void)appClient:(ARDAppClient *)client
didReceiveLocalVideoTrack:(RTCVideoTrack *)localVideoTrack {
self.localVideoTrack = localVideoTrack;
}
- (void)appClient:(ARDAppClient *)client
didReceiveRemoteVideoTrack:(RTCVideoTrack *)remoteVideoTrack {
self.remoteVideoTrack = remoteVideoTrack;
_videoCallView.statusLabel.hidden = YES;
}
- (void)appClient:(ARDAppClient *)client
didGetStats:(NSArray *)stats {
_videoCallView.statsView.stats = stats;
[_videoCallView setNeedsLayout];
}
- (void)appClient:(ARDAppClient *)client
didError:(NSError *)error {
NSString *message =
[NSString stringWithFormat:@"%@", error.localizedDescription];
[self showAlertWithMessage:message];
[self hangup];
}
#pragma mark - ARDVideoCallViewDelegate
- (void)videoCallViewDidHangup:(ARDVideoCallView *)view {
[self hangup];
}
- (void)videoCallViewDidSwitchCamera:(ARDVideoCallView *)view {
// TODO(tkchin): Rate limit this so you can't tap continously on it.
// Probably through an animation.
[self switchCamera];
}
- (void)videoCallViewDidChangeRoute:(ARDVideoCallView *)view {
AVAudioSessionPortOverride override = AVAudioSessionPortOverrideNone;
if (_portOverride == AVAudioSessionPortOverrideNone) {
override = AVAudioSessionPortOverrideSpeaker;
}
[RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeAudioSession
block:^{
RTCAudioSession *session = [RTCAudioSession sharedInstance];
[session lockForConfiguration];
NSError *error = nil;
if ([session overrideOutputAudioPort:override error:&error]) {
_portOverride = override;
} else {
RTCLogError(@"Error overriding output port: %@",
error.localizedDescription);
}
[session unlockForConfiguration];
}];
}
- (void)videoCallViewDidEnableStats:(ARDVideoCallView *)view {
_client.shouldGetStats = YES;
_videoCallView.statsView.hidden = NO;
}
#pragma mark - Private
- (void)setLocalVideoTrack:(RTCVideoTrack *)localVideoTrack {
if (_localVideoTrack == localVideoTrack) {
return;
}
_localVideoTrack = nil;
_localVideoTrack = localVideoTrack;
RTCAVFoundationVideoSource *source = nil;
if ([localVideoTrack.source
isKindOfClass:[RTCAVFoundationVideoSource class]]) {
source = (RTCAVFoundationVideoSource*)localVideoTrack.source;
}
_videoCallView.localVideoView.captureSession = source.captureSession;
}
- (void)setRemoteVideoTrack:(RTCVideoTrack *)remoteVideoTrack {
if (_remoteVideoTrack == remoteVideoTrack) {
return;
}
[_remoteVideoTrack removeRenderer:_videoCallView.remoteVideoView];
_remoteVideoTrack = nil;
[_videoCallView.remoteVideoView renderFrame:nil];
_remoteVideoTrack = remoteVideoTrack;
[_remoteVideoTrack addRenderer:_videoCallView.remoteVideoView];
}
- (void)hangup {
self.remoteVideoTrack = nil;
self.localVideoTrack = nil;
[_client disconnect];
[_delegate viewControllerDidFinish:self];
}
- (void)switchCamera {
RTCVideoSource* source = self.localVideoTrack.source;
if ([source isKindOfClass:[RTCAVFoundationVideoSource class]]) {
RTCAVFoundationVideoSource* avSource = (RTCAVFoundationVideoSource*)source;
avSource.useBackCamera = !avSource.useBackCamera;
}
}
- (NSString *)statusTextForState:(RTCIceConnectionState)state {
switch (state) {
case RTCIceConnectionStateNew:
case RTCIceConnectionStateChecking:
return @"Connecting...";
case RTCIceConnectionStateConnected:
case RTCIceConnectionStateCompleted:
case RTCIceConnectionStateFailed:
case RTCIceConnectionStateDisconnected:
case RTCIceConnectionStateClosed:
case RTCIceConnectionStateCount:
return nil;
}
}
- (void)showAlertWithMessage:(NSString*)message {
UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:nil
message:message
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alertView show];
}
@end