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function testmediasource(config) {
return new Promise(function(resolve, reject) {
// Fetch the media resources
var fetches = [config.audioPath, config.videoPath].map(function(path) {
return fetch(path).then(function(response) {
if (!response.ok) throw new Error('Resource fetch failed');
return response.arrayBuffer();
});
});
Promise.all(fetches).then(function(resources) {
config.audioMedia = resources[0];
config.videoMedia = resources[1];
// Create media source
var source = new MediaSource();
source.done = new Promise(function(resolvesource,rejectsource){
// Create and fill source buffers when the media source is opened
source.addEventListener('sourceopen', onSourceOpen);
resolve(source);
function onSourceOpen(event) {
var audioSourceBuffer = source.addSourceBuffer(config.audioType),
videoSourceBuffer = source.addSourceBuffer(config.videoType);
audioSourceBuffer.addEventListener('updateend',onUpdateEnd);
videoSourceBuffer.addEventListener('updateend',onUpdateEnd);
audioSourceBuffer.appendBuffer(config.audioMedia);
videoSourceBuffer.appendBuffer(config.videoMedia);
function onUpdateEnd(event){
event.target.removeEventListener('updateend', onUpdateEnd);
if (!audioSourceBuffer.updating && !videoSourceBuffer.updating) {
if (source.readyState !== 'open') {
rejectsource(new Error("Media source error"));
} else {
source.endOfStream();
resolvesource();
}
}
}
}
});
});
});
}