no sound when playing h264/mp3 mp4 file

JW Player — Apr 04, 2014 08:58AM EDT

---

Hi,

I'm having some trouble playing mp4 files in the latest version of JW's excellent player.

I've converted from various sources (mostly mobile phone vids) to mp4 using ffmpeg:

ffmpeg -i video3.mp4 -sameq -vcodec libx264 -acodec libmp3lame -ab 128k -ar 44100 output6.mp4

And, using the following SWFObject to load the player:

var s1 = new SWFObject("mediaplayer.swf","mediaplayer","400","220","8");
s1.addParam("allowfullscreen","true");
s1.addVariable("width","176");
s1.addVariable("height","144");
s1.addVariable("file","output6.mp4");
s1.addVariable("type","flv");
s1.write("container");

I get video playing fine, but no audio. The audio plays when I play the file in mplayer/vlc/totem/on my friend's Windows machine. Via the player, under linux and windows (latest versions of flash plugin), no sound.

I've tried resampling audio to 22050Hz, and a variety of bitrates, but with no luck. I've also tried type=mp4, but that has no effect either.

I don't, currently, have a demo up anywhere on the web - my webserver is on order, should have arrived today but didn't. :(

If anyone has any helpful suggestions on what I'm doing wrong, your advice would be greatly appreciated.

many thanks,


-mat