Category Archives: Information Technology

My IT consulting fields.

Ultimate media converter

Posted on by
Reply

FFMPEG is a powerful tool to convert a media file from/to any media format.
To use for Chormecast which mainly uses H264 format, some typical usages:

ffmpeg -i test.mov -vcodec h264 -acodec aac recoded2.mp4

ffmpeg -i input_file_name -c:v libx264 -c:a copy
ffmpeg -i %1 -c:v copy -c:a libmp3lame -b:a 128k %2.mp4

ffmpeg -i %1 -strict -2 -c:v libx264 -c:a libmp3lame -b:a 128k %2.mp4
ffmpeg -i %1 -strict -2 -vcodec h264 -acodec aac %2.mp4

ffmpeg -i %1 -c:v libx264 -c:a aac %2.mp4
ffmpeg -i %1 -acodec aac -ac 2 -af dynaudnorm -vcodec copy %2.mp4

The link to this article is here: linke

Windows 10 update failure

Posted on by
Reply

If a windows 10 update got interrupted, which may cause it to fail repeatedly.
Installation Failure: Windows failed to install the following update with error 0x800F0922: Cumulative Update for Windows 10 for x64-based Systems (KB3105210).

One way to solve the problem is to delete all files under
C:\Windows\SoftwareDistribution\Download\*

Another solution is to make a disk scan to see if there is any system files got corrupted.
sfc /scannow

Error Deploy to Azure

Posted on by
Reply

After successfully deploy an app to my own web hosting site (IIS) , I tried to do it again to Microsoft Azure, but got this strange error message from Visual Studio at the end of running the publish wizard.
Sequence contains more than one matching element
It turns out that if you have switched your publish targets or if you have manually updated/removed settings from your .lsxtproj or .lsproj for previous version of lightswitch, you need to manually update the setting of “.lsxtproj”

<RemotePublish>False</RemotePublish> 

<RemotePublish>True</RemotePublish>

Deploy to Azure error

Deploy to Azure error