I need to use a youtube player component in a rich media banner I'm making. I can't find any chrome less version of the one from youtube?
I know there is one but how can i access it?
Yes, there is a chromeless version available.
It's accessable through the YTPlayer Proxy Component, which can be downloaded here:
http://www.google.com/doubleclick/studio/docs/innovation/ytplayer/en/index.html
Then you have to set the playerType parameter like this:
var ytp:YTPlayer = new YTPlayer();
ytp.playerType = "chromeless";
//valid values "embedded" or "chromeless"
The full documentation (hard to find) for using the youtube player in doubleclick can be find here:
http://motifcdn2.doubleclick.net/EMEA/ad-in-a-box/YTP/DCRM_YouTube_Player_Component_EN.pdf
I'm interested in uploading a series of files to my web server and directing viewers to page which will autoplay the videos from a specific point dependent on the current time. My intention is to create the illusion of a live stream or actual TV channel, where they are unable to control the playback, but will return to the same point if they refresh the page.
I'm having difficulty finding answers, since it's descriptively so close to an actual webcast.
Here's my thought process on a solution.
Use the JavaScript Date Object API to capture the current time
Include your video with preload set to true, and controls false
Then use onLoad() and setup your video in JS
$(video).get(0).currentTime = XX; //You need an algorithm based on the time & length of video
$(video).get(0).play();
I was watching a youtube video and I decided to investigate some parts of its video player. I noticed that unlike most HTML5 video I have seen, Youtube's video player does not do a normal video source and instead utilizes a blob url as the source.
Previously I have tested HTML5 videos and I found that the server starts streaming the whole video from the start and buffers in the background the complete rest of the video. This means that if your video is 300 megs, all 300 megs will be downloaded. If you seek to the middle, it will start downloading from the seek position all the way to the end.
Youtube does not work this way (at least in chrome). Instead it manages to control buffering so it only buffers a certain amount while paused. It also seems to only buffer the relevant pieces, so if you skip around it will make sure not to buffer pieces that are unlikely to be watched.
In my attempts to investigate how this worked, I noticed the video src tag has a value of blob:http%3A//www.youtube.com/ee625eee-2802-49b2-a13f-eb374d551d54, which pointed me to blobs, which then led me to typed arrays. Using those two resources I am able to load a mp4 video into a blob and display it in a HTML5 video tag.
However, what I am now stuck on is how Youtube deals with the pieces. Looking at the network traffic it appears to sends requests to http://r6---sn-p5q7ynee.c.youtube.com/videoplayback which returns binary video data back in chunks of 1.1mb. It also seems worth noting that most normal requests due to HTML5 video requests seem to receive a 206 response code back while it streams, yet youtube's playvideo calls get a 200 back.
I tried to attempt to only load a range of bytes (via setting the Range http header) which unfortunately failed (I'm assuming because there was no meta-data for the video coming with the video).
At this point I'm stuck on figuring out how Youtube accomplishes this. I came up with several ideas though none of which I am completely sold on:
1) Youtube is sending down self contained video and audio chunks with each /videoplayback call. This seems like a pretty heavy burden on the upload side and it seems like it would be difficult to stitch these together to make it appear like it's one seemless video. Also, the video tag seems to think it's one full video, judging from calling $('video').duration and $('video').currentTime, which leads me to believe that the video tag thinks it's a single video file. Finally, the vidoe src tag never changes which makes me believe it is working with a singular blob and not switching out blobs.
2) Youtube constructs an empty blob pre-sized to the full video array and updates the blob with pieces as it downloads it. It would then make sure the user has not gotten too close to the last downloaded piece (to prevent the user from entering an undownloaded section of the blob). The problem that I see with this that I don't see any way to dynamically update a blob through javascript (although maybe I'm just having trouble googling for it)
3) Youtube downloads the meta data and then starts constructing the blob in order by appending the video pieces as it downloads them. The problem I see with this method is I don't understand how it would handle seeks in post-buffered territory.
Maybe I"m just missing an obvious answer that's right in front of me. Anyone have any ideas?
edit: I just thought of a fourth option. Another idea is they might use the file API to write the binary chunks to a file and use that file to stream off of. The file API seems to have the ability to seek to specific positions, therefore allowing you to fill a video with empty bytes and fill them in as they are received. This would definitely accommodate video seeking as well.
Okay, so few things you need to know is that YouTube is based on this great open source Project. It behaves different for every browser and if your browser supports more intensive decoding like WEBM it will use that to save Google's bandwidth. Also if you look at this Demo
Then you will find a section which downloads the entire video into a thing called "offline storage". I know chrome has it and some other browsers not every in some cases they do have to use the entire video source instead of a blob. So that blob is streaming depending on the user interaction with the video. Yes the video is just 1 file and they have metadata for that video like a little database that tells the time of the video and the points at which chunks can be divided in.
You can find out more by reading the Project's documentation. I really recommend you have a look at the demo.
When you look at the AppData of GoogleChrome, while playing a youtube video, you will see that it buffers in segmented files. The videos uploaded to youtube are segmented, which is why you can't perfectly pinpoint a timeframe in the first click on the bar if that timeframe is outside of the current segment.
The amount of segments depends on the length of the video, and the time from which you start and stop playing back the video.
When you are linked to a timeframe of a video, it will simply skip the buffering of the segments that come before that timeframe.
Unfortunately I don't know much about the coding for video playback, but I hope this points you in the right direction.
there is a canvas element in the page ,Maybe This Will Help
http://html5doctor.com/video-canvas-magic/
we knew the video is been segmented,the question is how to stitch them together.i think the real video element doesn't do the play work,it support the datasource,and draw the seagments each frame to the canvas element。
var v = document.getElementById('v');
var canvas = document.getElementById('c');
v.addEventListener('play', function(){
if(v.paused || v.ended) return false;
c.drawImage(v,0,0,w,h);
setTimeout(draw,20,v,c,w,h);
},false);
Youtube is using this feature only in browsers that support Media Source Extensions so it is up to the browser decide about all the rest because of this feature.
I want to write a Windows Store App that can capture video (without any sound) and take pictures. Imagine a digital camera: you can preview the picture on the screen of your device before pushing the button which takes the pic.
The problem I'm facing now is the fact that the Windows.Media.Capture namespace has only classes for objects that capture video with sound (CameraCaptureUI, MediaCapture). I'm not troubled by the objects' capabilities, but by the fact that I will have to include in the manifest of the app the Microphone capability and it does not make sense for the app to use it. I need a class that uses only the Webcam capability.
Any ideas?
I found the answer and I thought I should share it. I'm sorry for answering my own question, but here goes:
One can specify in the settings of the MediaCapture object, when initializing it, that it will use only the Video part:
var mediaCaptureMgr = new MediaCapture();
var captureSettings = new MediaCaptureInitializationSettings();
captureSettings.StreamingCaptureMode = StreamingCaptureMode.Video;
await mediaCaptureMgr.InitializeAsync(captureSettings);
RTFM!
I am new to actionScript programming. I know some html and I am currently learning html5. I need to do an interactive video by putting html content in a specific time of the video. I'll be more concise:
For example, I have a video that is 5 minutes long, let's suppose that from the second 3:50 to 4:00 I need to display two boxes over the video, each one representing one choice. If at 3:50 the video shows the possibility to the viewer to select among two paths (the video told the user to select among those paths for instance) the viewer will have the possibility to select one of the paths by clicking on one of the two boxes that will appear in that time interval. I know this needs to be made with the tag and with hyperlinks.
My question is How do I tell the html5 video player to display a canvas from the minute 3:50 to the minute 4:00 in which two hyperlinks will display??
Thanks for your attention I will appreciate very much your help. I need some kind of guidance because I have been looking for many days.
For your use case it seems you want to be able to control the video flow of the user through interactions that jump to different times in the video.
Using html5 video player to seek to a different time in a video (using currentTime) you could create a click event on a box that you lay on top of the video and set the time when you click that box, using:
// Jump 30 seconds into the video
var time = '30';
var video = document.createElement('video');
video.src = "video.mp4";
// Set the time
video.currentTime = time;
video.play();
You can check out how we created an interactive video authoring tool(open source) using html5 and JS and use that.
If you don't want to spend time coding an interactive video you should check out H5Ps authoring tool through this simple example. You can test out creating your own at H5P.org as well. The tool is completely free.
I may be wrong, but I believe that you mean javascript instead of actionscript. If that is the case then I would definitely check this out Video.JS.
When you reach the current time you trigger your method/function which adds whatever you want on top of the video.
var whereYouAt = myPlayer.currentTime();
However, if you DO mean actionscript then you are working with a flash player. Therefore I suggest you take a look at this Vimeo Player
currentTime:Number [read-only] Returns the current playback time of the video.