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Audio, but no MP4 video in Chrome

So, I installed JWPlayer 5.10 and everything works more or less as expected. Playing m4v files via Flash in FIrefox and via HTML5 in iOS.

For some reason though, I'm only getting audio in Chrome. There's no video. I don't actually have Flash installed for Chrome on my computer, so I'm wondering if that's the problem. Shouldn't it just serve up the HTML5 version in this case?

Here's a link: http://www.engagingmedia.tv/_bellacasa.html

It's strange. There's obviously something there, since my cursor indicates something is clickable, and I can click and begin playing the audio, but it's just blank without the play button that shows up in iOS.



7 Community Answers

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Ethan Feldman

JW Player Support Agent  
0 rated :

How did you encode the video?

Up Down

JW Player

User  
0 rated :

Yeah, that might be the problem.

I got the video from the client. I think he used some tool that converted FLVs to MP4s. When they _do_ play, in Firefox, etc, they load really, really slowly.

I'm guessing they need to be re-encoded? Do you know, technically, what's happening here?

Up Down

JW Player

User  
0 rated :

For a start, you might try running one of the clips through this tool and try it again: http://renaun.com/blog/2010/06/qtindexswapper-2/

Up Down

JW Player

User  
0 rated :

This is a good one
bc.. <script type="text/javascript">
jwplayer("flashcontent").setup({
flashplayer: "player-new.swf",
autostart: true,
file: "http://hostmysite.vo.llnwd.net/o23/engagingmedia/_cityscene/bella_casa.m4v",
image: "http://www.engagingmedia.tv/images/videostills/bellacasa_still.jpg",
height: 375,
width: 480
});
</script>



Now if you make a direct download of the following you get a different file


bc.. http://hostmysite.vo.llnwd.net/o23/engagingmedia/_cityscene/bella_casa.m4v

this is what you get
http://hostmysite.vo.llnwd.net/o23/engagingmedia/_cityscene/bella_casa.m4v.mp4



Now using media info one is able to determine the specifics as it relates to this file which clearly confirms that the file begin used is bella cass.m4v.mp4

bc.. General
Complete name : C:UsersWillieDesktopbella_casa.m4v.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 8.65 MiB
Duration : 58s 166ms
Overall bit rate mode : Variable
Overall bit rate : 1 248 Kbps
Encoded date : UTC 2012-01-31 22:08:24
Tagged date : UTC 2012-01-31 22:08:35
Writing application : HandBrake 0.9.5 2011010300



Recommedation:

<ol>
<li>ensure that the file name is correct</li>
<li> re-encode so that the end format is mp4 H264
IF you don't want to re-encode then correct the file name beign used and then as Bill stated apply the QTSwapper</li>
<li>obtain two helper programs to help you troubleshoot
(a) QTSwapper latest version is 2.36 released 24.07.2012
bc.. Default file filter string is .m instead of mp4 to handle other .m files like .m4v. Add 3rd command line argument to allow devs to change file filter string. If you use the command line a log file will be written to the File.documentsDirectory called qtindexswapper_commandline.log file.


(b) Mediainfo
mediainfo.sourceforge.net/en
bc.. is a convenient unified display of the most relevant technical and tag data for video and audio files.



</li>
</ol>

Have fun ;-)

Up Down

JW Player

User  
0 rated :

I am having almost the same problem. I installed JW 5, install it as a module, configured it and it seems everything works fine, I got an Audio, but don't have any Video. The player also seems invisible because When I tried to right Click in the supposed location of the player, it seems the'res no Flash embeded in that location, but the title, though, is there on the supposed location (Just below the Main Top Menu).

By the way, I configured the video player to display 200 X 150 pixel size, do you think that is the problem?

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JW Player

User  
0 rated :

Wow, ok, that's really useful info. Thanks!

Another curious item to note - since I first posted this, I've noticed that I'm having the same issue on other websites. I've visited a couple ecommerce sites, and even YouTube(!) and I'm continuing to get audio, but no video in Chrome 19.0.1084.56 without Flash installed.

Very strange. Makes me think it might actually be a browser issue.

I'll try what you suggested, Willie, but I suspect I may continue to have difficulty unless a browser update fixes this.

Up Down

Ethan Feldman

JW Player Support Agent  
0 rated :

@Rodrigo – Do you have a link?

@JP – It is recommended to re-encode the video with H.264 for video, AAC for audio, using this tool – http://handbrake.fr/

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