webrtc/talk/examples/ios/AppRTCDemo/APPRTCVideoView.m
2014-03-25 00:11:56 +00:00

83 lines
2.9 KiB
Objective-C

/*
* 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.
*/
/*
* This APPRTCVideoView must be initialzed and added to a View to get
* either the local or remote video stream rendered.
* It is a view itself and it encapsulates
* an object of VideoRenderIosView and UIActivityIndicatorView.
* Both of the views will get resized as per the frame of their parent.
*/
#import "APPRTCVideoView.h"
#import "RTCVideoRenderer.h"
#import "RTCVideoTrack.h"
@interface APPRTCVideoView () {
RTCVideoTrack* _track;
RTCVideoRenderer* _renderer;
}
@property(nonatomic, weak) UIView* renderView;
@property(nonatomic, weak) UIActivityIndicatorView* activityView;
@end
@implementation APPRTCVideoView
@synthesize videoOrientation = _videoOrientation;
- (void)layoutSubviews {
[super layoutSubviews];
if (!_renderer) {
// Left-right (mirror) flip the remote view.
CGAffineTransform xform =
CGAffineTransformMakeScale(self.isRemote ? -1 : 1, 1);
// TODO(fischman): why is this rotate (vertical+horizontal flip) needed?!?
xform = CGAffineTransformRotate(xform, M_PI);
// TODO(fischman): ensure back-camera flip is correct in all orientations,
// when back-camera support is added.
[self setTransform:xform];
_renderer = [[RTCVideoRenderer alloc] initWithView:self];
}
}
- (void)renderVideoTrackInterface:(RTCVideoTrack*)videoTrack {
[_track removeRenderer:_renderer];
[_renderer stop];
_track = videoTrack;
if (_track) {
[_track addRenderer:_renderer];
[_renderer start];
}
}
@end