124 lines
4.2 KiB
Plaintext
124 lines
4.2 KiB
Plaintext
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/*
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* libjingle
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* Copyright 2013 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if !defined(__has_feature) || !__has_feature(objc_arc)
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#error "This file requires ARC support."
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#endif
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#import "RTCVideoTrack+Internal.h"
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#import "RTCMediaSource+Internal.h"
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#import "RTCMediaStreamTrack+Internal.h"
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#import "RTCPeerConnectionFactory+Internal.h"
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#import "RTCVideoRendererAdapter.h"
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#import "RTCVideoSource+Internal.h"
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@implementation RTCVideoTrack {
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NSMutableArray* _adapters;
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}
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@synthesize source = _source;
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- (instancetype)initWithFactory:(RTCPeerConnectionFactory*)factory
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source:(RTCVideoSource*)source
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trackId:(NSString*)trackId {
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NSParameterAssert(factory);
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NSParameterAssert(source);
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NSParameterAssert(trackId.length);
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rtc::scoped_refptr<webrtc::VideoTrackInterface> track =
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factory.nativeFactory->CreateVideoTrack([trackId UTF8String],
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source.videoSource);
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if (self = [super initWithMediaTrack:track]) {
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[self configure];
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_source = source;
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}
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return self;
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}
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- (instancetype)initWithMediaTrack:
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(rtc::scoped_refptr<webrtc::MediaStreamTrackInterface>)mediaTrack {
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if (self = [super initWithMediaTrack:mediaTrack]) {
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[self configure];
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rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> source =
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self.nativeVideoTrack->GetSource();
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if (source) {
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_source = [[RTCVideoSource alloc] initWithMediaSource:source.get()];
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}
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}
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return self;
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}
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- (void)configure {
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_adapters = [NSMutableArray array];
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}
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- (void)dealloc {
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for (RTCVideoRendererAdapter *adapter in _adapters) {
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self.nativeVideoTrack->RemoveSink(adapter.nativeVideoRenderer);
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}
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}
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- (void)addRenderer:(id<RTCVideoRenderer>)renderer {
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// Make sure we don't have this renderer yet.
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for (RTCVideoRendererAdapter* adapter in _adapters) {
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NSParameterAssert(adapter.videoRenderer != renderer);
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}
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// Create a wrapper that provides a native pointer for us.
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RTCVideoRendererAdapter* adapter =
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[[RTCVideoRendererAdapter alloc] initWithVideoRenderer:renderer];
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[_adapters addObject:adapter];
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self.nativeVideoTrack->AddOrUpdateSink(adapter.nativeVideoRenderer,
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rtc::VideoSinkWants());
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}
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- (void)removeRenderer:(id<RTCVideoRenderer>)renderer {
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RTCVideoRendererAdapter* adapter = nil;
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NSUInteger indexToRemove = NSNotFound;
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for (NSUInteger i = 0; i < _adapters.count; i++) {
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adapter = _adapters[i];
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if (adapter.videoRenderer == renderer) {
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indexToRemove = i;
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break;
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}
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}
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if (indexToRemove == NSNotFound) {
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return;
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}
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self.nativeVideoTrack->RemoveSink(adapter.nativeVideoRenderer);
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[_adapters removeObjectAtIndex:indexToRemove];
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}
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@end
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@implementation RTCVideoTrack (Internal)
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- (rtc::scoped_refptr<webrtc::VideoTrackInterface>)nativeVideoTrack {
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return static_cast<webrtc::VideoTrackInterface*>(self.mediaTrack.get());
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}
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@end
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