Safari VS Chrome

[naaanarax]

I have tested ffmpeg live streams (web cam) on iPhone (6), iPad, Samsung Galaxy. Safari always normal live stream but Chrome,Firefox,other browser got browser stuck or 0.1-2 frame/sec significantly slow. If I test it in desktop (mac or windows), all working normal live speed. I did try minified (google closure), but result was same. Also I downgraded resoultion 160x120 fps and 480x320, and results were same. Also I tried downgraded bitrate even 30kbps, but the result was same. It seems very very strange to me. Do you have any idea of your so nice jsmpg.js ? Best.

[phoboslab]

I believe Chrome and Firefox for iOS still render in a UIWebView and can't use the JavaScript JIT.

Do you have the problem on Android as well?

[naaanarax]

Yes, I did test Android too (Samsung Galaxy S2 and newest Samsung mobile model 2015 Android 4.4 I think). Through emulator (iOS emulator in Windows or MAC Intel XDK and Microsoft Visual Studio 2015 Cordova), works great for Android, iPhone, iPad,.... But once I deploy jsmpg.js to the real devices, then frame rate goes down 0.1-0.3 frame/sec and frequently stuck except Safari. Safari works always great.

[phoboslab]

So you're saying it's slow in a Cordova or Intel XDK App? Those frameworks can't use the JavaScript JIT either.

[naaanarax]

My primary test is not XDK Cordova. I tested pure Web without XDK or Cordova. XDK or Cordova crossplatform converter I believed some more acceleration, but it was never for pure javascript.

[naaanarax]

I just set up demo site for you => admin/12345 userid/password Please try http://96.57.25.202:8082 from Safari (any Wifi mobile phone or tablet) => works great from Chrome => works terrible (0.1-0.3 fps , and frequently stuck browser) You know desktop works great for any browser (Wireless connection as same as my testing mobile phone)

[phoboslab]

I don't have an Android device available right now. Will have a look later today.

[naaanarax]

OK, I appreciate.

[naaanarax]

I tested iPad (iOS 8, and 9) and iPhone too, and the result was exactly same. Also my Mac (iOS 9.x) shows same result. I tested more than 10 different devices, but same result. Is it possible to use different Javascript compiling or Jitting for same Chrome but different device ? In other words, My Mac Mini iOS 9.2 Chrome with same wireless connection => Works Great My iPhone 6 iOS 9.2 Chrome with same wireless connection Browser => Works Terrible It is very strange to me becaue the result was same even I down resolution 160x120 30kbps.

[phoboslab]

Again, Chrome for iOS is extremely slow because it's not using the JavaScript JIT. There's nothing you can do about that. See this bug: https://code.google.com/p/chromium/issues/detail?id=423444

That said, I have no idea why your demo so slow on Android. Maybe it's just the "high" resolution and my old Device (original Galaxy Nexus). Can you try this static demo video and check if it's slow as well?: http://phoboslab.org/files/jsmpeg/

[naaanarax]

"http://phoboslab.org/files/jsmpeg/" works very smooth and no lag and no delay for my MAC, iPhone, Android Samsung. Also I tested resolution 160x120 and 480x320 too, and same issue. It seems totally not the bit rate or load balance issue.

[naaanarax]

Hello I need correction. I tested Android Chrome again, and confirmed works great. So Only problem is when Chrone on iOS specially iPhone and iPad (iOS 9,8,7 tsted) , not MAC. On the MAC (mac mini), it works perfect. I am sorry make you confused. I appreciate your direct support. Have great Christmas and Holidays. I will research more why.