surveillance h264 video problem

[rix133]

Hello,

I'm new here but done my share of video convertion before. Currently I am stuck with a .dad video file. It should be avc/h264 elementary stram (according to mkvmerge) without audio downloaded from a video surrveilance device. If I put it into a mkv container I get a video file where the real video is not seen as it has a gray layer on top of the original video.

Thanks for reading, any ideas how to remove the gray?

I upload a small sample mkv for you.

[jagabo]

I plays ok for me in MPCHC, KMPlayer, and WMP. VLC shows a gray window though. ffdshow (libavcodec) and CoreAVC decode the picture properly. ffmpeg decodes to a gray image.

[rix133]

Thanks for taking a look. I tested only VLC ...

[jagabo]

I also tried playing the file with my WDTV. It didn't play the file but didn't give any error message.

[budwzr]

I have a home security DVR, and it can convert to AVI before letting you download it. Look for that feature in yours.

[image]https://forum.videohelp.com/attachment.php?attachmentid=10189&stc=1&d=13243364 78[/image]

[rix133]

Looked for it and anything related to exporting video, even looked at the manual but I couldn't find anything. It is a strange kind of soft (called IMS200) that doesn't have any info about the makers visible inside the program nor in the manual.

[jagabo]

You might try muxing the elementary stream into an MP4 container instead.