I have a table containing videos as blob data. Im trying to stream it into browser using video tag in a webpage by writing the bytestream from blob into http response and giving the tat as a value for source in tag.
My code is as follows:
while ( rs2.next()) {
out.println("<h4>" + rs2.getString("caption") + "</h4>");
out.println("<video id=\"example_video\" class=\"video-js vjs-default- skin\" controls preload=\"none\" width=\"640\" height=\"264\""+
" data-setup=\"{}\">"+
" <source src=\"displayvideo?title=\""+ rs2.getString("caption") + "type='video/mp4' />"+
" <track kind=\"captions\" src=\"captions.vtt\" srclang=\"en\" label=\"English\" />"+
" </video>");
}
Any help would be appreciated.
I am not viewing any <embed src="" height="200" width="200"> tag within tag.
Try to refer this link
http://www.w3schools.com/html/html_videos.asp
to get the perfect help about the tag.
Hope its helpful!!!
Use html for the video code first and test everything is working on your HTML+JS with regular video files.
Then work on the page that will serve videos, you might need to mimic the headers of a regular file request, you can check what are the headers of the regular file requests by doing those requests and activate firebug on Firefox or similar tool on other browsers. Check that regular video file headers and the video server page are the same on what is needed.
After that is done and working, you can then start working on something that has the functionality from the code you posted.
I can code what you need if you are hiring, let me know.
P.S. Ignore Freelancer answer, because you are working with videojs, your html code is ok
Related
I cant find the solution anywhere and mine doesn't seem to work.
I just want to see the last plate string in the browser,or the few last plates,doesn't matter.
http://login:password#MY.IP/ISAPI/Traffic/channels/1/vehicleDetect/plates/
<AfterTime><picTime>2021-12-09T09:07:15Z</picTime></AfterTime>
I do have a plate taken exactly at the time im using in pictime,but the result im getting is;
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<ResponseStatus xmlns="
http://www.hikvision.com/ver20/XMLSchema
" version="2.0">
<requestURL>
/ISAPI/Traffic/channels/1/vehicleDetect/plates/
<AfterTime>
<picTime>2021-12-09T09:01:15Z</picTime>
</AfterTime>
</requestURL>
<statusCode>4</statusCode>
<statusString>Invalid Operation</statusString>
<subStatusCode>invalidOperation</subStatusCode>
</ResponseStatus>
POSTMAN
Edit:
Are you certain that the ISAPI setting is enabled in the camera configuration?
It's not possible in the browser without some tool to send and process your API request.
Have you tried using Postman?
Don't forget to use a Digest Auth header.
from requests.auth import HTTPDigestAuth
import requests
url = 'http://<Your IP>/ISAPI/Traffic/channels/1/vehicleDetect/plates/'
data = "<AfterTime><picTime>20220912T192011+0400</picTime></AfterTime>"
r=requests.get(url, data =data,auth=HTTPDigestAuth('admin', 'password'))
print(r.text)
Try this one after enabling this setting in camera
Screenshot
I am building a react project where a user needs to be able to preview a document that has been uploaded. I have the file stored in a blob file in a variable called 'upload', and I use the following code to display it in a new tab when the user clicks on the preview button:
var newWIndow;
if (upload.includes("data:application/pdf"))
newWIndow = "<iframe width='100%' height='100%' src='" + upload + "'></iframe>"
else
newWIndow = "<img width='100%' src='" + upload + "'></img>";
var x = window.open();
x.document.open();
x.document.write(newWIndow);
x.document.close();
The uploads are limited to image or pdf files, and works great, except when the file size goes over 1MB. In that case, it simply opens a blank page:
THe entire blob file is too large to post here, but I thought that giving an idea of what it looks like might help someone spot what I am doing wrong, so here is a snippet:
data:application/pdf;base64,JVBERi0xLjQNJeLjz9MNCjEgMCBvYmoNPDwvTWV0YWRhdGEgMiAwIFIvUGFnZXMgMyAwIFI
Does anyone perhaps have any advice for me? Is there a better way to open the uploaded document? Is there a way to get around the size issue? Any advice would be greatly appreciated.
I was mistaken, I was not using a blob object but a binary Base64 one. The new question, as well as the solution, is posted in this post.
I am currently developing a Meteor React app, which is using the ostrio:files package to store audio files in a collection named Files. In another (regular mongo) collection, I am using the following code in the transform function to "join" the document with the link to the audio file:
transform: function(doc){
let curAudio = doc.audio;
let audioFile = Files.collection.findOne({_id: curAudio.file_id});
if(audioFile){
curAudio.audioLink = Files.link(audioFile);
curAudio.audioLength = audioFile.meta.length;
curAudio.audioSize = audioFile.size;
doc.audio = curAudio;
}
return doc;
}
This seems to work just fine, as the resulting audio.audioLink is something like
http://localhost:3000/cdn/storage/files/8Q7WwEXyJSkNWwFQa/original/8Q7WwEXyJSkNWwFQa.m4a
But when I try to do something like this
<audio controls preload="none" style={{width: "480px"}}>
<source src={track.audioLink} type="audio/mp4"/>
<p>Your browser does not support HTML5 audio.</p>
</audio>
To be able to play the file, everything works until I click the play button of the HTML5 player. Then, chrome outputs to the console, that the server returned 404 when the file was supposed to be loaded. I tested putting the link into the adress bar, here the server response is just
File Not Found :(
Does anyone have an idea how to fix this?
I found the answer:
My local Ubuntu installation was apparently configured to store uploaded files in /tmp, which didn't caus problems until I restarted the system or cleared my temporary files otherwise. Having the server recreate the DB fixed the problem.
Found this:
http://stackoverflow.com/questions/7198124/setting-the-header-to-be-content-image-in-cakephp
but either not understanding, or its not working for me.
Basically want to record 'opens' for emails. Currently it "works" but in gmail it shows that an image is not being displayed--so I want to return an actual image header. I've tried doing:
$this->layout=false;
$this->response->type('jpg');
In the Controller for Opens, but that is not working.
Web Sniffer (http://web-sniffer.net/), is showing a jpeg response, but still have a blank no file found image. How can I fix?
[edit]
Thinking this:
http://stackoverflow.com/questions/900207/return-a-php-page-as-an-image
and this:
http://book.cakephp.org/2.0/en/controllers/request-response.html
might be solution
Serve a real image
If you only send the headers for an image, but don't send the image content - it will be considered a broken image. To send a file refer to the documentation for whichever version of CakePHP you are using. For example in 2.3+:
public function opened() {
...
$this->response->file('/path/to/1x1.gif');
return $this->response;
}
Pretty sure this worked:
$name = './img/open.jpg';
$fp = fopen($name, 'rb');
$this->response->header("Content-Type: image/jpg");
$this->response->header("Content-Length: " . filesize($name));
fpassthru($fp);
Where open.jpg is a 1x1 real pixel image in cakephp's /img directory.
Would love if someone else could confirm?
Getting:
����JFIF``��C $.' ",#(7),01444'9=82<.342��C 2!!22222222222222222222222222222222222222222222222222��"����������?����
Going to manually (so I'm guessing thats a "real" image file?). No longer getting gmails no image file icon.
nvermind--websniff says this is a html request. will update when I figure out.
[edit]
think this might be correct way:
$this->response->type('jpg');
$this->response->file('./img/open.jpg');
just tested, and definitely getting a 1x1 pixel download. No jibberish like above.
Gmails caching proxy
Normally serving a real image as suggest by AD7Six would be the way to go, however with Gmails caching proxy in place you may run into problems when just serving an image.
http://www.emailmarketingtipps.de/2013/12/07/gmails-image-caching-affects-email-marketing-heal-opens-tracking/
The problem is/was that the image has been cached, and the proxy wouldn't request it a second time, making tracking of opens unreliable.
Content length to the rescue
Until recently the workaround for this has been to respond with a content length of 0 (and private cache control which seems to be necessary for some other webmail providers):
// ...
$this->response->header(array
(
'Cache-Control' => 'private',
'Content-Length' => 0
));
$this->response->type('gif');
return $this->response;
This would return a response with no content body, which is treated as broken, however not all clients did actually show a broken image symbol, still it was recommended to hide the image using styles on the img tag.
Return of cache control
However it has been reported that Gmail made some changes recently so that sending a no-cache header is now being respected again.
http://blog.movableink.com/real-time-content-and-re-open-tracking-return-to-gmail/
So in addition to AD7Six example an appropriate Cache-Control header might now do the trick
// ...
$this->response->header(array
(
'Cache-Control' => 'no-cache, max-age=0'
));
$this->response->file('/path/to/1x1.gif');
return $this->response;
I download fine uploader 3.5, created http handler for a file upload function in my little website . the website is done by asp.net ajax and jquery. it runs at IE9. every time I upload a file, there is a list of file names shown below the load button. if I don't want thme, what should I do?
my code is like this:
html: ...
'<tr><td><div id="jquery-wrapped-fine-uploader"></div></td></tr>...
'ajax/jquery:...
'$('#jquery-wrapped-fine-uploader').fineUploader({
'request: { endpoint: 'xxx.ashx' }
'})
'$('#jquery-wrapped-fine-uploader').on("complete",
'function (event, id, fileName, responseJSON) {
' alert("UPLOAD SUCCESS");
' $.ajax({some ajax calls here});
' })
// WHERE TO PUT this TO CLEAR the UPLOADED FILE LIST??? $('#jquery-wrapped-fine-uploader').fineUploader('reset');
XXX.ashx:
'... public void ProcessRequest (HttpContext context) {
'do some http request work..
'context.Response.ContentType = "text/plain";
'context.Response.Write("{\"success\":true}");
'}
My question is:
I want to completely remove the uploaded file list which shows automatically in green color ( or red if they fail), in order to clear them, I tried to put: $('#jquery-wrapped-fine-uploader').fineUploader('reset'); right after .on('complete'), it's not working, also #jquery-wrapped-fine-uploader seems cached all the time. please help on this.
If you don't want to see the file list at all, you should be using FineUploaderBasic mode instead of using FineUploader mode and then removing all elements in the pre-built UI. FineUploaderBasic mode gives you access to the API, options, and callbacks, but assumes you will be creating your own UI. In other words, FineUploaderBasic mode does not create any DOM elements (except the opaque file input element as a child of your button container, if you supply one). This is all explained (in a great amount of detail) in the documentation.
Start here: http://docs.fineuploader.com