I am getting frames from canvas through canvas.getDataURL().  However, now I have an array of png images, but I want a video file.  How do I do this?  var canvas = document.getElementById("mycanvaselementforvideocapturing"); var pngimages = [...
I want to record user's microphone 5 seconds long segments and upload each to the server. I tried using MediaRecorder and I called start() and stop() methods at 5 seconds time interval, but when I concatenate these recordings there is a "drop...
I have a perfectly working demo animation within a canvas element that I can record as a webm video file with MediaRecorder and captureStream() from the <canvas> element.   The animations from the 2d context api come out just fine in the result...
The following code works when the video observing client is loaded first then the webcam client is loaded second it works flawlessly, however, if the order is switched or in any way the stream is interrupted for example by refreshing either client th...
I've recently been trying to generating video in the browser, and have thus been playing with two approaches:   Using the whammy js library to combine webp frames into webm video. More details here. Using MediaRecorder and canvas.captureStream. M...
I start and stop a MediaRecorder stream. The red "recording" icon appears in the Chrome tab on start, but doesn't go away on stop.  The icon looks like this:    My code looks like this:  const mediaRecorder = new MediaRecorder(stream); .....
After trying to understand why some of my Web application's objects were retained in memory by Chrome I think I may have narrowed it down to a case of an otherwise unreachable MediaRecorder object being retained by the browser. Please observe the...
I am working on a project where I want to  getUserMedia -> MediaRecorder -> socketIO -> MediaSource appendbuffer   I got it to work, however after a few seconds it randomly stops.  I know about WebRTC, but in the project I am working on it&#...
I need to save a file of unknown size, potentially multiple gigabytes, in JS. The data source is a mediastream captured using mediarecorder.  In Chrome, this can be accomplished using the filesystem and filewriter apis with filesystem: urls by writin...

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