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Difference in MP4 Properties

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Joseph Ripley
Difference in MP4 Properties
on Dec 16, 2015 at 3:43:57 pm

Doing a cross comparison analysis between the original MP4 I downloaded to that where I rendered into a new MP4. Wondering if I use the new Mp4 if that will provide a sharper quality since it is already in 1920x1080 format when rendering to m2v????


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Danny Hays
Re: Difference in MP4 Properties
on Dec 16, 2015 at 5:07:49 pm

If I'm understanding you, you downloaded an MP4,from the internet? Then made it into another MP4? Why? It was already an MP4. What is the resolution of the first one? Making a new one with a higher resolution is not going to improve the quality. Also every time you render a video, it takes a re compression hit.

Danny Hays
Samples of my Work can be seen here:
https://www.youtube.com/user/ErnestDaniels/videos?view_as=public


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John Rofrano
Re: Difference in MP4 Properties
on Dec 16, 2015 at 5:14:43 pm

As Danny pointed out, re-rednering low resolution video to a higher resolution does not improve the quality and may actually decrease it because the render itself is using a lossy codec.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Joseph Ripley
Re: Difference in MP4 Properties
on Dec 16, 2015 at 5:39:25 pm

From the JPEG I had posted with it, the original showed the resolution, data and etc. In the experiment, redoing into a 1920x1080 factor, everything increased in the cross comparison analysis which also made it bigger. Then using the new MP4 as a source to do in m2v may have a difference.


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