html5-video | 易学教程

Motion jpeg in html5 canvas

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问题 I'm trying to wrap motion jpeg (mjpeg) stream (from webcam) into html5 canvas. I know Safari and Chrome have native support for mjpeg so that I can put it into img to make it work. The reason I want to wrap it in canvas is that I want to do some post processing on it. I know i can use drawImage to load an image (and mjpeg): <html> <body> <canvas id='test_canvas' width='640px' height='480px' style='border:1px solid #d3d3d3'> </canvas> <script language="JavaScript"> var ctx = document

Cefsharp and video tag WebRTC

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问题 I'm trying to write a wpf with webrtc support. The access to the camera works but the display of the from the page doesn't. Can anyone help? 回答1: You can do something like this: var cefSettings = new CefSettings(); cefSettings.CefCommandLineArgs.Add("enable-media-stream", "enable-media-stream"); Cef.Initialize(cefSettings); This has the same effect as passing the command line argument 回答2: I assume you want to display video from your camera via WebRTC so I think it requires a call to

How do test Smart TV Alliance SDK app on actual Device

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问题 I've been playing with the Smart TV Alliance SDK and have built an app which runs fine on the emulator but I need to test and demo it on an actual device before I continue with the project. I have purchased an LG TV with the latest firmware and need to package or display somehow through the TV but no documentation exists to walk through packaging to device. Does anyone have any experience in this? 回答1: On TV: Open Smart TV homepage - Click on 'More' - Sign in with credentials. Insert USB with

Streaming MP4 video through .NET HTML5

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问题 I am trying to create a test page which will contain a HTML5 VIDEO tag which will allow converted videos to be played. I am successfully able to convert the videos and store these locally on the server but I'd like to be able to stream all videos through another .aspx page. Assuming I have a player.aspx page which will contain the HTML code and getvideo.aspx page which will do nothing except provide the video binary, I thought that the following code would work fine in my player.aspx page:

webrtc - video get blob, but it remain black

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问题 I run my webrtc code with chrome 21. If I open two tabs in the same chrome, and then open page with webrtc code inside. One tab is for sending video stream; one tab is for receiving video stream It works fine. However, If I open page with two Incognito mode or two different chrome browser, I can get the sdp and candidate information correctly. It seems that video can decode the information. In remote video, I can see only Besides, it seems crash. I tried to click "close chrome" but useless.

Video.js youtube video

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问题 I can't get youtube video to work with video.js I added in the head : <link href="http://vjs.zencdn.net/c/video-js.css" rel="stylesheet"> <script src="http://vjs.zencdn.net/c/video.js"></script> Then in the body : <video id="example_video_1" class="video-js vjs-default-skin" controls preload="none" width="640" height="360" data-setup='{"techOrder":["youtube","html5"],"ytcontrols":false}'> <source src="http://www.youtube.com/watch?v=qWjzVHG9T1I" type='video/youtube' /> But I have a black div

Is it possible to preload and cache video files without adding them to the DOM?

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问题 I'm working on a game that involves trigging one of 30 small video files depending on what result you get. As the videos need to play immediately after the user interacts, ideally I'd like to have the videos preloaded and ready to go. I've added PreloadJS, queued up all of the assets I need. Looking at the Network tab in inspector, I can see all 20mb of videos transferring on the loading screen. However, when it comes time to play the clips, it seems to be re-downloading them rather than

Chrome does not display HTML5 video until page is resized

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问题 I am attempting to create a full background video for a website I am developing. I have my video tags all set up properly, and it plays great in Safari and Firefox, but in Chrome there are issues. When I hit play in Chrome the audio starts playing, but no video appears. The video only appears if you resize the page or do something else visual such as selecting text on the page. Then the page displays the video. Is there a fix for this, or some way to trick Chrome into properly rendering the

JQuery autoplay video on click show

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问题 I'm using JQuery on a navigational panel that operates as click to show/hide. On the "About" panel is small html5 video that I would like to auto start on click-show and stop video on click-hide. The id for the "About" panel is: <div class="panel2"> Sample code for how the panels function: $(document).ready(function(){ $(".triggerso").click(function(){ $(this).hide(); $(".panelso").show("fast"); $('.panelso').click(function(){ $(this).hide(); $('.triggerso').show("fast"); }); $(".panel").hide

Force Vimeo HTML5 Video Embed

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问题 I'm trying to embed a Vimeo video and force it to use HTML5 by default. Here's a thread about doing the same thing I'm tying to do but with YouTube. Here's another thread talking about getting the Vimeo HTML5 cookie Here's a discussion of the issue on Vimeo's site. Basically, I would be doing it in response to a user's preference on my site so their concerns don't really apply. Does anyone know a workaround or way to force HTML5 Vimeo embeds even when Flash is available? (I know the cookie