1 Reply Latest reply: Nov 3, 2011 9:14 AM by Zac Lam RSS

    Encore "Don't Transcode" condition bug?

    Rallymax-forum Community Member

      Zac et al,

       

      What are the conditions for Encore to leave a .264 stream alone (“Don’t Transcode”)?

       

      If you compare my PAL 576i25 H.264 stream (576i25_bff_letterbox_3.264) to the output of the CS5.5 bundled Main Concept version (576i25_bff_letterbox_MC.m4v) of the exact same footage the only difference seems to be interlaced method being “INTERLACED” vs “MBAFF” for interlaced material.

       

      I think this a bug on Encore’s part because MBAFF & INTERLACED are legal Blu-ray modes of interlaced media.

      I’m HOPING it’s not because I want this to work on CS3,4,5 and bugfix will presumably not get pushed back to older versions.

       

      If not, what is the condition that Encore doesn’t like?

       

      Note that Interlaced by MBAFF with NTSC (480i29.97) comes in fine.

      As does Progressive 1080p24 & Interlaced 1080i29.97 footage.

       

      It seems to only be PAL 576i25

       

      Also, fyi, I tried Upper and Lower Field First and they both acted the same way (as they should since field order doesn't matter it just has to be defined).

       

      ----------------------------------------------------------------------------------------

      General

      Complete name                    : M:\My Videos\576i25_bff_letterbox_MC.m4v

      Format                           : AVC

      Format/Info                      : Advanced Video Codec

      File size                        : 20.5 MiB

       

      Video

      Format                           : AVC

      Format/Info                      : Advanced Video Codec

      Format profile                   : Main@L4.1

      Format settings, CABAC           : Yes

      Format settings, ReFrames        : 3 frames

      Bit rate mode                    : Variable

      Maximum bit rate                 : 6 000 Kbps

      Width                            : 720 pixels

      Height                           : 576 pixels

      Display aspect ratio             : 4:3

      Frame rate                       : 25.000 fps

      Standard                         : PAL

      Color space                      : YUV

      Chroma subsampling               : 4:2:0

      Bit depth                        : 8 bits

      Scan type                        : Interlaced          <<<<<<<<<<

      Scan order                       : Bottom Field First  <<<<<<<<<<

       

       

      And here is my .264

      ----------------------------------------------------------------------------------------

      General

      Complete name                    : M:\My Videos\576i25_bff_letterbox_3.264

      Format                           : AVC

      Format/Info                      : Advanced Video Codec

      File size                        : 20.3 MiB

       

      Video

      Format                           : AVC

      Format/Info                      : Advanced Video Codec

      Format profile                   : Main@L4.1

      Format settings, CABAC           : Yes

      Format settings, ReFrames        : 3 frames

      Bit rate mode                    : Variable

      Bit rate                         : 5 000 Kbps

      Maximum bit rate                 : 6 000 Kbps

      Width                            : 720 pixels

      Height                           : 576 pixels

      Display aspect ratio             : 4:3

      Frame rate                       : 25.000 fps

      Standard                         : PAL

      Color space                      : YUV

      Chroma subsampling               : 4:2:0

      Bit depth                        : 8 bits

      Scan type                        : MBAFF        <<<<<<<<<<

      Bits/(Pixel*Frame)               : 0.482