How do I upload Audio+video as one to server? - recordrtc

Question

How to upload RecordRTC based audio+video recordings to server in a single file format?
RecordRTC seems generating two separate files: one for audio (as WAV) and another one for video (as WebM). How to upload both files simultaneously on a PHP server?

Answer 1

Since Chrome >=49, RecordRTC is now using MediaRecorder API to support microphone+webcam recordings into single WebM file format.
Here is how to record both audio+video into single WebM (this works both on Chrome >= 49 and Firefox >= 38)
<script src="https://cdn.WebRTC-Experiment.com/gumadapter.js"></scrip>
<script>
var recorder;
function successCallback(audioVideoStream) {
recorder = RecordRTC(audioVideoStream, {
type: 'video',
mimeType: 'video/webm',
bitsPerSecond: 512 * 8 * 1024
});
recorder.startRecording();
}
function errorCallback(error) {
// maybe another application is using the device
}
var mediaConstraints = {
video: true,
audio: true
};
navigator.mediaDevices.getUserMedia(mediaConstraints).then(successCallback).catch(errorCallback);
document.querySelector('#btn-stop-recording').onclick = function() {
if (!recorder) return;
recorder.stopRecording(function() {
var audioVideoBlob = recorder.blob;
// you can upload Blob to PHP/ASPNET server
uploadBlob(audioVideoBlob);
// you can even upload DataURL
recorder.getDataURL(function(dataURL) {
$.ajax({
type: 'POST',
url: '/save.php',
data: {
dataURL: dataURL
},
contentType: 'application/json; charset=utf-8',
success: function(msg) {
alert('Successfully uploaded.');
},
error: function(jqXHR, textStatus, errorMessage) {
alert('Error:' + JSON.stringify(errorMessage));
}
});
});
});
};
function uploadBlob(blob) {
var formData = new FormData();
formData.append('file', blob);
$.ajax({
url: "/save.php",
type: "POST",
data: formData,
processData: false,
contentType: false,
success: function(response) {
alert('Successfully uploaded.');
},
error: function(jqXHR, textStatus, errorMessage) {
alert('Error:' + JSON.stringify(errorMessage));
}
});
}
</script>
Here is an example save.php file that reads for video-filename and video-blob:
<?php
foreach(array('video', 'audio') as $type) {
if (isset($_FILES["${type}-blob"])) {
echo 'uploads/';
$fileName = $_POST["${type}-filename"];
$uploadDirectory = 'uploads/'.$fileName;
if (!move_uploaded_file($_FILES["${type}-blob"]["tmp_name"], $uploadDirectory)) {
echo(" problem moving uploaded file");
}
echo($fileName);
}
}
?>
Above save.php requires following FormData:
function uploadBlob(blob) {
var formData = new FormData();
formData.append('video-blob', blob);
formData.append('video-filename', 'FileName.webm');
$.ajax({
url: "/save.php",
type: "POST",
data: formData,
processData: false,
contentType: false,
success: function(response) {
alert('Successfully uploaded.');
},
error: function(jqXHR, textStatus, errorMessage) {
alert('Error:' + JSON.stringify(errorMessage));
}
});
}