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Encore "Don't Transcode" condition bug?

Nov 2, 2011 5:56 PM

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

 
Replies
  • Currently Being Moderated
    Nov 3, 2011 9:14 AM   in reply to Rallymax-forum

    Hey Rallymax,

     

    Let me see if I can get the Encore team to look at this.  Can you upload a sample file (perhaps to somewhere like yousendit.com)?

     

    Thanks,

     

    Zac

     
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