3 Replies Latest reply: Dec 16, 2013 4:15 PM by shooternz RSS

    Export legal video levels

    Elliott B. Community Member

      Quick question — does Premiere CC automatically scale full range levels to legal (16-235) when exporting, and does it depend on the output codec?

      I thought that it does, but when watching a test DVD, I'm seeing some flicker in the whites.

      Premiere's YC waveform monitor shows my levels going up to 100.  That includes both graphics which were designed 0-255 and video.

      I export ProRes, then compress that for DVD with Media Encoder.  Is this the right process?  Or do I need so manually scale all the levels in Premiere to 235 before export?

        • 1. Re: Export legal video levels
          shooternz Community Member

          does Premiere CC automatically scale full range levels to legal (16-235) when exporting,

           

          No

           

           

          and does it depend on the output codec?

          Maybe...so do a test on your choice of codec. 

           

          I dont think it does though ...if one applies legalisation.

          • 2. Re: Export legal video levels
            Elliott B. Community Member

            I should have worded that better.

            My graphics are designed up to 255, but in Premiere's waveform monitor they are maximum 100 IRE (actually it kind of looks like 101).  So I think that means the levels are scaled upon import.  If I import a test image with known RGB values, and look at it on external scopes, I see that 255 measures as 237, and 235 measures as 219.

             

            For video, my levels are already legal when rendered by the colorist.  They also never go above 100 in Premire's waveform.  So why am I seeing mild flicker in the highglights when played on a set-top DVD player on a plasma screen?

            • 3. Re: Export legal video levels
              shooternz Community Member

              I never think in terms of anything but IRE scale as does the broadcast QC in my workflow.

               

              Flicker..no real idea but could be induced by your playback hardware / settings (eg scaling) or your encoding workflow through to DVD