[FFmpeg-trac] #4692(undetermined:new): opus + webm - inconsistent meta?
FFmpeg
trac at avcodec.org
Wed Jul 1 23:50:11 CEST 2015
#4692: opus + webm - inconsistent meta?
-------------------------------------+-------------------------------------
Reporter: ronag | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by ronag):
Here is a html page which can be opened in Chrome to test.
{{{
<video controls="" autoplay="" width="320" height="240"></video>
<script>
var video = document.querySelector('video');
video.addEventListener('error', onVideoError);
window.MediaSource = window.MediaSource || window.WebKitMediaSource;
var mediaSource = new MediaSource();
video.src = window.URL.createObjectURL(mediaSource);
mediaSource.addEventListener('sourceopen', function(){
window.video.pause();
window.mediaSource.mode = 'sequence'
window.sourceBuffer = window.mediaSource.addSourceBuffer('audio/webm;
codecs="opus"');
fileDownload('0.webm', function(ar) {
var appendTime = 0
sourceBuffer.timestampOffset = appendTime - 648/48000 + 0.007;
sourceBuffer.appendWindowEnd = appendTime + 5+0.007;
sourceBuffer.appendWindowStart = appendTime;
window.sourceBuffer.appendBuffer(new Uint8Array(ar));
fileDownload('1.webm', function(ar) {
var appendTime = 5//window.sourceBuffer.buffered.end(0);
sourceBuffer.timestampOffset = appendTime - 648/48000 + 0.007;
sourceBuffer.appendWindowEnd = appendTime + 5+0.007;
sourceBuffer.appendWindowStart = appendTime;
window.sourceBuffer.appendBuffer(new Uint8Array(ar));
fileDownload('2.webm', function(ar) {
var appendTime = 10//window.sourceBuffer.buffered.end(0);
sourceBuffer.timestampOffset = appendTime - 648/48000+0.007;
sourceBuffer.appendWindowEnd = appendTime + 5+0.007;
sourceBuffer.appendWindowStart = appendTime;
window.sourceBuffer.appendBuffer(new Uint8Array(ar));
window.video.play();
});
});
});
});
function onVideoError() {
var error = video.error
switch (error.code) {
case error.MEDIA_ERR_DECODE:
console.error(`[MediaLoader] Error: Failed to decode media.`)
break
case error.MEDIA_ERR_SRC_NOT_SUPPORTED:
console.error(`[MediaLoader] Error: Source is not supported.`)
break
case error.MEDIA_ERR_NETWORK:
console.error(`[MediaLoader] Error: Network error.`)
break
case error.MEDIA_ERR_ABORTED:
console.error(`[MediaLoader] Error: Aborted.`)
break
}
}
function fileDownload(url, cb) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.send();
xhr.onload = function(e) {
cb(xhr.response);
};
};
</script>
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4692#comment:1>
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