111 lines
3.7 KiB
Plaintext
111 lines
3.7 KiB
Plaintext
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/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "RTCVideoTrack+Private.h"
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#import "NSString+StdString.h"
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#import "RTCMediaStreamTrack+Private.h"
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#import "RTCPeerConnectionFactory+Private.h"
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#import "RTCVideoRendererAdapter+Private.h"
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#import "RTCVideoSource+Private.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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std::string nativeId = [NSString stdStringForString:trackId];
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rtc::scoped_refptr<webrtc::VideoTrackInterface> track =
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factory.nativeFactory->CreateVideoTrack(nativeId,
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source.nativeVideoSource);
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if ([self initWithNativeTrack:track type:RTCMediaStreamTrackTypeVideo]) {
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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)initWithNativeTrack:
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(rtc::scoped_refptr<webrtc::MediaStreamTrackInterface>)nativeMediaTrack
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type:(RTCMediaStreamTrackType)type {
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NSParameterAssert(nativeMediaTrack);
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NSParameterAssert(type == RTCMediaStreamTrackTypeVideo);
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if (self = [super initWithNativeTrack:nativeMediaTrack type:type]) {
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_adapters = [NSMutableArray array];
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}
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return self;
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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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- (RTCVideoSource *)source {
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if (!_source) {
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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] initWithNativeVideoSource:source.get()];
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}
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}
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return _source;
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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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// Getting around unused variable error
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if (adapter.videoRenderer != renderer) {
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NSAssert(NO, @"|renderer| is already attached to this track");
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}
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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] initWithNativeRenderer: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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__block NSUInteger indexToRemove = NSNotFound;
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[_adapters enumerateObjectsUsingBlock:^(RTCVideoRendererAdapter *adapter,
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NSUInteger idx,
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BOOL *stop) {
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if (adapter.videoRenderer == renderer) {
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indexToRemove = idx;
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*stop = YES;
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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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RTCVideoRendererAdapter *adapterToRemove =
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[_adapters objectAtIndex:indexToRemove];
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self.nativeVideoTrack->RemoveSink(adapterToRemove.nativeVideoRenderer);
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[_adapters removeObjectAtIndex:indexToRemove];
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}
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#pragma mark - Private
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- (rtc::scoped_refptr<webrtc::VideoTrackInterface>)nativeVideoTrack {
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return static_cast<webrtc::VideoTrackInterface *>(self.nativeTrack.get());
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}
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@end
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