My MKV to MP4 converted video doesn't play in flex

I am stuck on one issue from last 1 day. I am using Adobe flex video display to play video for my site.

There is some converted video from MKV to MP4 using ffmpeg.

ffmpeg -i Test.mkv -vcodec copy -acodec copy Test.mp4

Now, i am trying to play that video from local it's working fine. But when i upload that video on server and trying to play video. Then it will not work with flex VideoDisplay same will work in browser and HTML videoplayer and also works with JWPlayer.

Other mp4 video which are not converted works very fine. Only converted Videos are not working in only flex VideoDisplay.

I am Just playing using.

<s:VideoDisplay id="videoDisp" autoPlay="false" autoDisplayFirstFrame="true" />

And give path to videoDisplay like:

videoDisp.source = Video_path;

My video file Video and Audio codec is as shown in below image:

Any help will be appreciate,
Thanks.

For my first tests, I saw an #2032 error, which is a stream error, and I think it's caused by the size of your video, because Flash player is trying to download the whole video before starting playing it, and I think there is a timeout or something like that which fire that error. So to avoid that, you can use qt-faststart to move metadata and offset information to the front of the file which will help to play it more quickly.

You can download that tool from here or if you are a fun of python you can try it from here. I will also upload a copy here for Win64.