• Compression Techniques

  h264 to ProRes problems

  Posted by Roberto Figueroa on April 20, 2009 at 10:26 am

  Here’s my current situation: I have 100Gb of material on h264, shot using a Canon 5dM2 camera. I want it converted to ProRes so I can do post work. If I do this convertion using Compressor, from h264 directly to ProRes, I get heavily altered images. By heavily I mean a 3 to 5% change in luminance (dark images).

  If, however, I convert a h264 clip to an Uncompressed 10-bit clip, then take the uncompressed clip and convert it to ProRes, I get a perfect copy.

  This poses a bit of a problem, for converting 100Gb of 1920×1280 30fps video to Uncompressed takes a LOT of time and disk space, and I’m supposed to keep shooting with this camera.

  Anyone here had to deal with this before?

  Daniel Low replied 17 years, 4 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Daniel Low

  April 20, 2009 at 2:34 pm

  This may help:

  https://provideocoalition.com/index.php/aadams/story/quicktime/P0/

  __________________________________________________________________
  Two years from now, spam will be solved. – Bill Gates, World Economic Forum 2004

Reply to this Discussion! Login or Sign Up