Invalid pixel aspect ration 65536/65536, limit is 255/255

When I try to convert a mp4 video file to mkv file, I got following error message:

Invalid pixel aspect ration 65536/65536, limit is 255/255

 

We need to specify the aspect radio with -aspect 1:1

Then the error message is changed to:

timebase 1/90000 not supported by MPEG 4 standard, the maximum admitted value for the timebase denominator is 65535

Then we also need specify frame rate with -r 22

 

navigateToUrl not working for latest update of chrome

Using navigateToUrl to download file in flex doesn’t work for latest update of chrome, one solution is to disable pepperFlash of chrome, but in will need user to modify settings of chrome manually.

ExternalInterface.call() function doesn’t work as well, so ExternalInterface.call(“window.open”, url) won’t work either.

Finally we decided to use FileReference class to download file