The Naked Scientists

The Naked Scientists Forum

Author Topic: Choosing video file format  (Read 874 times)

Offline PmbPhy

  • Neilep Level Member
  • ******
  • Posts: 2760
  • Thanked: 38 times
    • View Profile
Choosing video file format
« on: 14/08/2016 00:14:13 »
When I took a video of a physicist explaining common misconceptions in physics the files turned out to be huge, i.e. on the order of 300 Mb. The file format is the .mov too, i.e. Quick Time format and as such its not supported by Windows Media Player. I'm going to edit the files by reducing the size of them. When I do I'm thinking of saving them in the MPEG-4 file format which has the .mp4 extension. Is this a good format to use?


 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8124
  • Thanked: 53 times
    • View Profile
Re: Choosing video file format
« Reply #1 on: 14/08/2016 03:33:25 »
If the videos are only going to be viewed 1/4 screen
you can re-size them, which will reduce the file-size dramatically.

I use a free-version of "Microsoft Expression" to do that ...
https://en.wikipedia.org/wiki/Microsoft_Expression_Encoder

Now the bad news, the free-version doesn't output in MP4 : it only
has Microsoft proprietary "wmv" video format, but that's acceptable by YouTube.
« Last Edit: 14/08/2016 03:39:39 by RD »
 

Offline PmbPhy

  • Neilep Level Member
  • ******
  • Posts: 2760
  • Thanked: 38 times
    • View Profile
Re: Choosing video file format
« Reply #2 on: 16/08/2016 05:51:33 »
If the videos are only going to be viewed 1/4 screen
you can re-size them, which will reduce the file-size dramatically.

I use a free-version of "Microsoft Expression" to do that ...
https://en.wikipedia.org/wiki/Microsoft_Expression_Encoder

Now the bad news, the free-version doesn't output in MP4 : it only
has Microsoft proprietary "wmv" video format, but that's acceptable by YouTube.
Thanks, RD. I bought Pinnacle Studio 19 recently and it has all the fancy doodads to do whatever I want to. I was merely curious if one file format is better than another. Seems to me that I'm better off saving the video files in the MP4 format, wouldn't you say?
 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8124
  • Thanked: 53 times
    • View Profile
Re: Choosing video file format
« Reply #3 on: 16/08/2016 11:17:34 »
MP4 is the format YouTube uses when you download videos , even though you may have uploaded them in a different format . So according to YouTube, MP4 is the most widely accepted video format.   

The common video formats all have lossy-compression, which trades off file-size with image-quality.  You can experiment by setting different bit-rates to see what is the lowest acceptable image quality.

If you are uploading to YouTube my tip would be err on the side of quality, as YouTube transcode the videos, which reduces the quality a little bit.
« Last Edit: 16/08/2016 11:36:33 by RD »
 

The Naked Scientists Forum

Re: Choosing video file format
« Reply #3 on: 16/08/2016 11:17:34 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums