独立移动应用程序上的 WebRTC [英] WebRTC on a standalone mobile app

问题描述

我知道 WebRTC 是为浏览器设计的，但是否可以直接在移动应用程序上使用 WebRTC 库?

I know that WebRTC was designed for browsers, but is it possible to use WebRTC libraries on mobile applications directly?

谢谢！

推荐答案

截至 5 月 14 日 这里是一个使用 WebRTC 的安卓项目，效果很好.

As of May 14 here is an android project using WebRTC that works nicely.

我将整个 android 项目翻译成 Objective-C for iOS 并让 WebRTC 在 iOS 中工作，但我在 iPhone 4 和 4s 上遇到了问题.仅适用于 iPhone 5 和 5s.

I translated that entire android project to Objective-C for iOS and got WebRTC working in iOS too but I'm having trouble on iPhone 4 and 4s. Just works in iPhone 5 and 5s.

我认为问题在于性能.当我使用 webrtc 库进行视频通话时，它会占用 iPhone 5 上大约 140% 的 CPU，我想这是很多资源，iPhone 4s 无法处理.

I think the problem is the performance. When I make a videocall with the webrtc libraries it takes about 140% of the CPU on an iPhone 5, which I guess that's a lot of resources and the iPhone 4s can't handle it.

已编辑

在与视频连接苦苦挣扎后(总是在 10 秒后断开连接)我终于让 WebRTC 在 iPhone 4s 上工作了，您要做的就是在创建本地 videoSource 捕获对象时设置正确的约束:

After struggling with the video connection (always disconnected after 10 seconds) I finally got WebRTC working on iPhone 4s, all you have to do is set the right constraints when creating the local videoSource capturing object:

NSString *_width = @"320";
NSString *_height = @"180";
NSString *_maxFrameRate = @"10";

RTCMediaConstraints *videoConstraints = [[RTCMediaConstraints alloc]   
initWithMandatoryConstraints:@[[[RTCPair alloc] initWithKey:@"maxHeight" value:_height],
[[RTCPair alloc] initWithKey:@"maxWidth" value:_width],
[[RTCPair alloc] initWithKey:@"maxFrameRate" value:_maxFrameRate]] optionalConstraints:@[[[RTCPair alloc] 
initWithKey:@"googCpuOveruseDetection" value:@"true"],
[[RTCPair alloc] initWithKey:@"googCpuLimitedResolution" value:@"true"]]];


RTCVideoSource *videoSource = [factory videoSourceWithCapturer:capturer constraints:videoConstraints];
RTCMediaStream *lms = [factory mediaStreamWithLabel:@"ARDAMS"];
[lms addVideoTrack:[factory videoTrackWithID:@"ARDAMSv0" source:videoSource]];

请注意，这会发送一个非常小的视频，但它可以工作！

Note that this sends a very small video, but it works!

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