• Compression Techniques

  FC6->Episode->DVDSP4 bitrate problem

  Posted by Terry Griffey on September 24, 2007 at 6:08 pm

  I’m receiving a bitrate too high message from DVDSP4 only from Episode encoded files. (Occurs on more than one exported sequence) Here’s the workflow…

  HDV 1080i sequence in FCP6 exported as QT movie – ProRes

  Compressed using Episode using following settings starting with the HD->SD 6mbit preset…

  Bitrate-based, peak rate 7000 and avg 6000
  4:2:0 color space with 16:9 ratio, Progressive encode type and field order “same as input”

  2-pass and other MPEG-2 settings default
  Resize filter on – 720 X 480

  Import asset into DVDSP and see average bit rate is 6.1 Mb. When building I get the “video bitrate too high”. When encoding in Compressor 3 using the 90-minute BEST preset (a peak of 7.2), the average bit rate for the file is 6.3 Mb and DON’T get the bitrate too high error.

  I also notice that DVDSP reports the asset as 29.97 non-drop with the Episode encoded file and 29.97 drop with the Compressor encoded file. This may mean nothing.

  Is Episode missing bitrate spikes?

  Thanks for your help.
  TG

  Terry Griffey replied 18 years, 7 months ago 1 Member · 0 Replies
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