agora 屏幕共享和视频播放切换错误
Screen sharing and video broadcasting switching error in agora
所以,我一直在做一个使用agora的web sdk的项目。我基本上想在屏幕共享和视频广播之间来回无缝切换,在这两种情况下都共享音频。
这是我编写的代码:
const localPlay = {
screen: {
playing: false,
initialised: false
},
video: {
playing: false,
initialised: false
}
};
// Initialise two clients and two streams, with the following stream specs
const screenStreamSpec = {
streamID: uid,
audio: false,
video: false,
screen: true,
};
const videoStreamSpec = {
streamID: uid,
audio: true,
video: true,
screen: false,
};
// ...
document.getElementById("Screen-share").addEventListener("click", function() {
if(!localPlay.screen.initialised) {
return
} else {
if(!localPlay.screen.playing && !localPlay.video.playing) {
screenStream.play("Screen");
rtc.client.screenClient.publish(screenStream);
localPlay.screen.playing = true;
return;
}
if(localPlay.screen.playing) {
return;
}
videoStream.stop();
localPlay.screen.playing = false;
screenStream.play("Screen");
localPlay.video.playing = true;
let newTrack = videoStream.getVideoTrack();
screenStream.replaceTrack(newTrack);
}
});
document.getElementById("Video-share").addEventListener("click", function() {
if(!localPlay.video.initialised) {
return
} else {
if(!localPlay.video.playing && !localPlay.screen.playing) {
videoStream.play("Screen");
rtc.client.videoClient.publish(videoStream);
localPlay.video.playing = true;
return;
}
if(localPlay.video.playing) {
return;
}
screenStream.stop();
localPlay.video.playing = false;
videoStream.play("Screen");
localPlay.screen.playing = true;
let newTrack = screenStream.getVideoTrack();
videoStream.replaceTrack(newTrack);
}
});
代码按照this(方案3)。
错误是我第一次尝试做任何一个时,它们都起作用了。但是,假设我从屏幕共享开始,然后切换到视频广播,摄像头关闭,屏幕共享关闭,我正在共享的屏幕旋转并显示在 Screen
div 中。如果我再尝试切换一次,div 就会完全变黑。
我哪里做错了?
您真的不应该使用替换曲目,因为并非所有浏览器都支持它,而且它是一项相对较新的功能。
为了更稳定的解决方案,我建议使用 2 个客户端,一个用于摄像头,另一个用于屏幕共享。我这里有一个例子:https://github.com/digitallysavvy/group-video-chat
如果您想在两者之间快速切换,可以使用 muteVideo 事件在流之间切换。
所以,我一直在做一个使用agora的web sdk的项目。我基本上想在屏幕共享和视频广播之间来回无缝切换,在这两种情况下都共享音频。
这是我编写的代码:
const localPlay = {
screen: {
playing: false,
initialised: false
},
video: {
playing: false,
initialised: false
}
};
// Initialise two clients and two streams, with the following stream specs
const screenStreamSpec = {
streamID: uid,
audio: false,
video: false,
screen: true,
};
const videoStreamSpec = {
streamID: uid,
audio: true,
video: true,
screen: false,
};
// ...
document.getElementById("Screen-share").addEventListener("click", function() {
if(!localPlay.screen.initialised) {
return
} else {
if(!localPlay.screen.playing && !localPlay.video.playing) {
screenStream.play("Screen");
rtc.client.screenClient.publish(screenStream);
localPlay.screen.playing = true;
return;
}
if(localPlay.screen.playing) {
return;
}
videoStream.stop();
localPlay.screen.playing = false;
screenStream.play("Screen");
localPlay.video.playing = true;
let newTrack = videoStream.getVideoTrack();
screenStream.replaceTrack(newTrack);
}
});
document.getElementById("Video-share").addEventListener("click", function() {
if(!localPlay.video.initialised) {
return
} else {
if(!localPlay.video.playing && !localPlay.screen.playing) {
videoStream.play("Screen");
rtc.client.videoClient.publish(videoStream);
localPlay.video.playing = true;
return;
}
if(localPlay.video.playing) {
return;
}
screenStream.stop();
localPlay.video.playing = false;
videoStream.play("Screen");
localPlay.screen.playing = true;
let newTrack = screenStream.getVideoTrack();
videoStream.replaceTrack(newTrack);
}
});
代码按照this(方案3)。
错误是我第一次尝试做任何一个时,它们都起作用了。但是,假设我从屏幕共享开始,然后切换到视频广播,摄像头关闭,屏幕共享关闭,我正在共享的屏幕旋转并显示在 Screen
div 中。如果我再尝试切换一次,div 就会完全变黑。
我哪里做错了?
您真的不应该使用替换曲目,因为并非所有浏览器都支持它,而且它是一项相对较新的功能。
为了更稳定的解决方案,我建议使用 2 个客户端,一个用于摄像头,另一个用于屏幕共享。我这里有一个例子:https://github.com/digitallysavvy/group-video-chat
如果您想在两者之间快速切换,可以使用 muteVideo 事件在流之间切换。