Home > Uncategorized > Samsung NV100HD broken mp4 files

Samsung NV100HD broken mp4 files

Let me begin by saying Samsung, your camera isn’t standards compliant.
Yes, MPEG-4 Part 14, formally ISO/IEC 14496-14:2003, is a standard agreed upon by the ISO/IEC Moving Picture Experts Group.

My Samsung NV100HD digital camera can capture video at 30 fps and 720p resolution (H.264) together with stereo audio (AAC) in an MP4 container.

Sadly, Samsung Opto-Electronics decided to mangle the headers on the MP4 container so that the majority of editing software out there (which in my case means Apple iMovie) refuses to accept it, or demands to first transcode to something it’s familiar with, and transcoding files as that resolution and framerate takes a long long time, with accompanying loss of definition to boot.

W Feng from dpreview.com kindly pointed out that you can strip the video and audio streams from the badly formed Samsung NV100HD movie files and place them in a correctly formed mp4 container with the free ffmpeg tool :

Install ffmpeg if you don’t have it (you’ll need MacPorts installed) :

sudo port install ffmpeg

And then build a new MP4 container around the audio and video streams :

ffmpeg -vcodec copy -acodec copy -i  nv100hd_clip.mp4 nv100hd_clip.mp4

This involves no transcoding, so it’s blazingly fast and gives you both the ability to import into iMovie ’08 and ’09, and also sets a proper thumbnail rather than the black one that the NV100HD sets.

I wrote in mid-December of the problem with the non-compliant MP4 container headers to Samsung Technical Support and a month later (30th January 2009) they sent this thoughtful reply :

Dear Tom
Thank you for contacting Samsung Opto-Electronics.
Your Reference Number Is: 2103135390

I have escalated the issue to our head office with your issue. We will contact you when we have a fix for the problem.

If you have any further questions or queries, please contact us on 0845 SAMSUNG (726 7864) quoting the above reference number, where one of our agents will be happy to assist you. Our opening hours are Monday to Friday 8AM to 8PM, Saturday and Sunday 9AM to 6PM.

Kind Regards
Chris
Samsung Technical Support

I doubt ‘head office’ had any idea what I was complaining about, and accordingly my communications of the fault has been ignored entirely despite follow up emails from myself.

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