rafbis / moodle-mplayer

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Videos not loading correctly in Chrome #49

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago
What steps will reproduce the problem?
1. View an mplayer video within Moodle using Google Chrome (latest version).

What is the expected output? What do you see instead?
Instead of buffering the video on the fly, Chrome doesn't begin playback until 
the entire video is buffered/preloaded. This means that the user may wait up to 
several minutes watching a spinning circle before the video begins. Changing 
the video quality, buffer length, etc. doesn't seem to have any effect.

What version of the product are you using? On what operating system?
Moodle 1.9.x, Chrome 20.0.1132.57, Windows XP, Windows 7

Please provide any additional information below.
This doesn't seem to be an issue in Firefox or IE with the Flash Plugin and 
ActiveX. 

Original issue reported on code.google.com by mgl...@gmail.com on 27 Jul 2012 at 8:24

GoogleCodeExporter commented 8 years ago
More details: the video is an mp4 (h.264 encoding). It might be related to this 
issue; I'll give an update if the fix in the link below works:

http://www.longtailvideo.com/support/forums/jw-player/setup-issues-and-embedding
/19542/mp4-plays-immediately-in-ie-also-on-ipad-but-slow-start-in-chrome

Original comment by mgl...@gmail.com on 27 Jul 2012 at 8:53

GoogleCodeExporter commented 8 years ago
Hi,

The problem could be related to this: 
http://en.wikipedia.org/wiki/ISO_base_media_file_format#Streaming

If you make sure the MOOV atom is at the beginning of the video, then playback 
(progressive download) can commence as soon as enough of the file has 
downloaded. Note that MP4, M4V, MOV are almost identical video container 
formats.

Original comment by matbury on 27 Jul 2012 at 9:59

GoogleCodeExporter commented 8 years ago

Original comment by matbury on 27 Jul 2012 at 10:00

GoogleCodeExporter commented 8 years ago
Thanks so much for your help! It seems to be working fine now.

Original comment by mgl...@gmail.com on 27 Jul 2012 at 10:36