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Saving blob video with php


Saving blob video with php

By : STRiX
Date : November 22 2020, 02:59 PM
I hope this helps . A blob url is only usable in the browser that created it. So you cant use it on your server or copy and paste it into another browser or send the link to your friend etc.
What you need to do is get the blob that url was created from and use a FormData object and upload that to your server.
code :


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Return blob from azure blob storage without saving it

Return blob from azure blob storage without saving it


By : CLATH
Date : March 29 2020, 07:55 AM
seems to work fine Unfortunately I don't have any python sample code, but here is what you can do for verification purposes:
Make sure the container is not publicly accessible Client sends a request to your web application for a given file inside the blob to your web application Verify if this client is allowed to access that blob (return a 401 error, if not) Create a Shared Access Signature for this blob for a short timeframe (approx. 5 mins should do) Return a 303 (see other) html status code to the client containing the url to the blob in the Location-Header
Stuck with saving genreated blob with video data

Stuck with saving genreated blob with video data


By : user3619594
Date : March 29 2020, 07:55 AM
it fixes the issue I think your problem is with the start method of the MediaRecorder Plugin :
The argument (here 3000) that you place in is actually an interval for start() to fire.
code :
var mediaConstraints = {
    audio: !!navigator.mozGetUserMedia, // don't forget audio!
    video: true                         // don't forget video!
};

navigator.getUserMedia(mediaConstraints, onMediaSuccess, onMediaError);

function onMediaSuccess(stream) {

    // var i = 0;
    var mediaRecorder = new MediaStreamRecorder(stream);
    mediaRecorder.mimeType = 'video/webm';
    mediaRecorder.ondataavailable = function (blob) {
        // POST/PUT "Blob" using FormData/XHR2

        this.stop(); // stop the recorder

        var fileType = 'video'; // or "audio"
        var fileName = 'ABCDEF.webm';  // or 'ABCDEF'+ i++ +'.webm'

        var formData = new FormData();

        ...
Successfully Saving base64 Image to Azure Blob storage but blob image always broken/small white box

Successfully Saving base64 Image to Azure Blob storage but blob image always broken/small white box


By : user52052
Date : March 29 2020, 07:55 AM
Hope this helps To visit the images directly via Urls in browser requires binary content. You can convert the base64 encoded string to binary buffer in your node.js backend, and upload the buffer string to Azure Storage.
Please try the following code snippet:
code :
var rawdata = 'data:image/jpeg;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==';
var matches = rawdata.match(/^data:([A-Za-z-+\/]+);base64,(.+)$/);
var type = matches[1];
var buffer = new Buffer(matches[2], 'base64');

blobsrv.createBlockBlobFromText('mycontainer','profile-pic-123.jpg', buffer, {contentType:type}, function(error, result, response) {
        if (error) {
            console.log(error);
        }else{
         console.log(result)
        }
    });
Saving Canvas as blob and then blob as file

Saving Canvas as blob and then blob as file


By : Andries
Date : March 29 2020, 07:55 AM
To fix this issue Through much trial and effort, without using a 3rd party, here is an answer that works too:
code :
$('#a').click(save);

function save(ev) {
   $('#canvas')[0].toBlob((blob) => {
        let URLObj = window.URL || window.webkitURL;
        let a = document.createElement("a");  
        a.href = URLObj.createObjectURL(blob);
        a.download = "untitled.png";
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
   });
}
Saving blob (might be data!) returned by AJAX call to Azure Blob Storage creates corrupt image

Saving blob (might be data!) returned by AJAX call to Azure Blob Storage creates corrupt image


By : Jan Nehring
Date : March 29 2020, 07:55 AM
wish helps you createBlockBlobFromText will work with either string or buffer. You might need a buffer to hold the binary content due to a known issue of jQuery.
For a workaround, there are several options:
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