get conformance tests from telecom server (#357)

[aureliendavid]

see #357 (comment)

Since I'm not a regular contributor to mp4box.js I'm doing this as a PR in case there are some objections to doing changing this.

[stefwalter]

It looks like this change is a step in the right direction. However, now when I try to run the test suite locally, I get the the following errors in my browser:

Access to XMLHttpRequest at 'https://download.tsi.telecom-paristech.fr/gpac/mp4box.js/mp4/h264bl.mp4' from origin 'http://0.0.0.0:8000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

I am running the test suite as: http://0.0.0.0:8000/test/qunit.html

I think in order to solve this we may need to add an Access-Control-Allow-Origin: * header to the gpac/mp4box.js/mp4 directory on download.tsi.telecom-paristech.fr WDYT?

[aureliendavid]

I added the cors headers, can you retest now?

[stefwalter]

Yes that does the trick. I also needed to do this in order to get the tests to pass locally:

diff --git a/test/qunit-helper.js b/test/qunit-helper.js
index 0a90d64..2d8a7b8 100644
--- a/test/qunit-helper.js
+++ b/test/qunit-helper.js
@@ -1,5 +1,5 @@
 Log.setLogLevel(Log.error);
-var TIMEOUT_MS = 10000;
+var TIMEOUT_MS = 30000;
 var mediaTestBaseUrl = 'https://download.tsi.telecom-paristech.fr/gpac/mp4box.js/';
 
 function getFileRange(url, start, end, callback) {

Many tests routinely take more than 10000 milliseconds, and a couple > 20000 milliseconds. Obviously once the media files are in the browser's cache, the requests all result in a HTTP 304 Not Modified, and the tests run quickly.

[aureliendavid]

thanks for testing, I added the bigger timeout to the PR

[rbouqueau]

LGTM. Is it ready to merge?

[DenizUgur]

I think this is okay, I was thinking about using FileFormatConformance for the tests but until then this should be enough.