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valentindascalita
Currently Being Moderated

50i footage best workflow for progressive output (web/youtube) / deinterlace

Jun 24, 2013 2:49 PM

Tags: #problem #youtube #premiere_pro #stutter #render #h264 #workflow #progressive #export_settings #sequence_settings #interlaced_to_progressive #50i #deinterlace #interlace #25p #deint

Hello

 

The reason I have to work with interlaced footage is that the clips are edited for a TV show as well.

I (usualy) get 1080i @ 50fps clips with fast-paced movement of camera & inside the shot (subject) - car racing.

Editing in Adobe Premiere Pro 5.5

 

I am struggling with some stutter & sharpness loss & thin interlaced lines (even after exporting as progressive).

 

The current workflow is:

          - importing inside an AVCHD - 1920x1080 @ 50i sequence

          - edit

          - export as h264 - 1920x1080 @ 25P /Constrant Bit Rate @ 10MB

Results not that great : while the smoothness of motion is preserved there is a visible drop in details quality and still visible thin horizontal lines from the interlaced footage.

 

Also tried:

          - importing inside an AVCHD - 1920x1080 @ 25P sequence

          - edit

          - select 'Always deinterlace' option inside Field Options box (takes extra some time because i have to do this for each individual clip)

          - export as h264 - 1920x1080 @ 25P /Constrant Bit Rate @ 10MB

Results not that great : stutter motion, more visible drop in details quality and no horizontal lines visible.

 

My questions are:

     1)What is the best sequence settings for editing 50i settings and exporting for WEB/progressive?

     2)What is the best deinterlace option? ('interpret footage>no field' does not help)

     3)What is the best output/export settings?

 

Thank you!

 
Replies
  • Currently Being Moderated
    Jun 24, 2013 2:59 PM   in reply to valentindascalita

    1. avchd 1080i50 sequence, same as footage.

    2. dont deinterlace on the timeline, no need unless you are adding speed changes to a clip.

    3. for web use a youtybe preset (H264). These outputs are progressive.

     
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  • Currently Being Moderated
    Jun 24, 2013 3:30 PM   in reply to valentindascalita

    Show us.  Post a link.

     
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  • Currently Being Moderated
    Jun 24, 2013 3:54 PM   in reply to valentindascalita

    OK.

     

    Next, post a screen shot of your export settings.  We need to see the full video tab and everything above it.

     
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  • Currently Being Moderated
    Jun 24, 2013 8:25 PM   in reply to valentindascalita

    I'm not seeing anything obvious.  I would expect that to work fine and in fact my own 25i media turns out just fine.

     
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  • Currently Being Moderated
    Jun 25, 2013 1:34 AM   in reply to Jim Simon

    Next step is to take a look at the original.

    Can you upload a clip with fast motion.

     
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  • Currently Being Moderated
    Jun 25, 2013 9:13 AM   in reply to valentindascalita

    You are not using the Youtube preset

     

    Your preset shows that whilst it is h264 some settings have been changed over the default hence CUSTOM showing in the image, it is that you are just outputting a file specifically for your PC/MAC

     

    Other observations

     

    Why are you saving to your C drive?  Better to have multiple drives for editing, there are plenty of posts on drive management and setup

     

    Do you have the default Premiere settings for scratch discs etc?  These will use your C drive which will soon become filled, or at least overwhelmed with raed and wrtite problems

     

    Why are you saving the file at 10mbps?  Especially for motion my PAL HD MP4 progressive settings are 32 ave 40 max mbps

     
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  • Currently Being Moderated
    Jun 25, 2013 10:58 AM   in reply to Biggles Lamb

    When checking Render at Max depth preset jumps to custom.

    Even at 10 mbps it should produce good quality/

     
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