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AVCHD smart rendering.

Last post 04-28-2014, 17:24 by jjn. 6 replies.
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  •  04-28-2014, 6:19 631258

    AVCHD smart rendering.

    Recently, I upgraded my system from Studio 15 to Studio 17 Plus. One of the reasons was, that I read in the overview of Studio 17 Plus: 
    • Enjoy faster movie making with up to 10x faster video rendering2
    From this I concluded that now smart rendering for AVCHD had been implemented. More evidence I found in the foot note:
     2When editing AVC (H.264) video format and producing video in the same format.

    My Sony camera produces ,MTS (H264) video files with a bit rate of about 10 Mbps. My first experiences with Studio 17 are, that the rendering is not much faster than with Studio 15. Exporting to a H264 ,MTS file with a bit rate of about 10 Mbps goes with a speed between 20 and 25 frames per second. (This happens to be approximately the play rate.)
    Now I wonder whether other people have seen faster rendering speeds.

    Further, I wonder how critical is the condition in the foot note, that the produced video must be in the same format. I Understand that if the new video uses  a much lower bit rate, then smart rendering is not possible. Therefore, I try to match the bit rate of the source video with that of the video to be produced, but, this can never be exact, because the bit rates of the source files vary a bit from file to file. I further assumed that if I choose a higher bit rate, that then Studio is smart enough to understand that no quality is gained by producing new files with higher bit rates instead of using smart rendering, so it would use smart rendering with lower bit rate. But if I try a (standard) bit rate of 16 Mbps for the export file, than I see a much bigger result, so, apparently, no smart rendering is used.
    If the condition is so strict, then I would suggest a button in the export options window to choose the same format for the export file as is used in the source files, because I don't know how to activate smart rendering in my case.

    The bottom line is: How do I activate this promised rendering speed increase?



  •  04-28-2014, 8:51 631279 in reply to 631258

    Re: AVCHD smart rendering.

    When you try the render, are you selecting the Smart option from the export type drop down? If you don't it won't smart render. If the option isn't there, it means that the program doesn't consider that it can smart render the timeline. Unfortunately there are many restriction on this type up export currently.
  •  04-28-2014, 16:07 631319 in reply to 631279

    Betreft: Re: AVCHD smart rendering.

    I do not see the Smart option in the type drop down. Not even if I create a new project with only one single scene file from my camera. Could you show a screen dump of where I should expect this option?

    Where can I find more details about the restrictions that apply for smart rendering?

    Fast rendering was one of the main reasons to upgrade my system and it is the first feature mentioned in the announcement as important functions. So, I feel somewhat disappointed if it would turn out not to work.

  •  04-28-2014, 16:35 631321 in reply to 631319

    Betreft: Re: AVCHD smart rendering.

    Sorry a am dutch

     Als je verder wil communiceren graag op het Nederlandse forum

    Beste mensen
    Het volgende is getest met PS 16 en PS 17
    File Mts 1920x1080P 28mb/sec 50fr/sec 3x1min op tijdlijn =3 min.
    Mts export zelfde als basis materiaal.540mb
    Met ingebouwde grafische processor Intel 4600
    PS16 Rendertijd 1.17sec GPU 70% CPU 70% Geheugen gebr 17%
    PS17 Rendertijd 1.17sec GPU 72% CPU 70% Geheugen gebr 17%
    DVD maken 720x576P 8.5 mb/sec 25fr/sec
    PS16 Rendertijd 1.05 sec GPU 4% CPU 65% Geheugen gebr 16%
    PS17 Rendertijd 1.06 sec GPU 5% CPU 67% Geheugen gebr 16%
    Blu-ray 1920x1080P 50fr/sec 28mb/sec 40mb/sec
    PS16 Rendertijd 1.25sec GPU 65% CPU 43% (40mb/sec)Geheugen
    gebr 17 % Resl 1920x1080 50I 40mb/sec
    Rendertijd 1.25sec GPU 35% CPU62% Geheugen gebr 17%
    Echter Resl 1280x 720 50P 28mb/sec 40mb/sec

    PS17 Rendertijd 1.17 sec GPU 52-60% CPU 40%(28mb)70%(40mb)
    Geheugen gebr 17%
    Met video Kaart Nvidia 660TI

    MTS Bestand als boven export
    PS16 Rendertijd 5.15sec GPU 5% CPU 75-80% Geheugen gebr 16%
    PS17 Rendertijd 5.oo sec GPU 5% CPU 76-80% Geheugen gebr 13%
    DVD maken720x576P 8.5mb/sec
    PS16 Rendertijd 1.05sec GPU 5-6% CPU 70% Geheugen gebr 15%
    PS17 Rendertijd 1.06sec GPU 5% CPU 67% Geheugen gebr 16%
    Bl-Ray 1920x1080 P 50fr/sec 28mb/sec
    PS16 Rendertijd 3.50sec GPU 5-6% CPU 70% Geheugen gebr 15%
    Resl 1920x1080 50I 40mb/sec
    Rendertijd 3.50sec GPU 35% CPU62% Geheugen gebr 17%
    Echter Resl 1280x 720 50P 28mb/sec 40mb/sec
    PS17 Rendertijd 3.50sec GPU 5-8% CPU 60% Geheugen gebr 16%
    40mb/sec 28mb/sec + rendertijd= 3.25sec

    Conclusie : PS 16 en PS 17 verschillen met rendertijd niet veel wel groot verschil met Grafische in gebouwde processor en de video kaart.De instel mogelijkheden van PS 17 zijn van wat betreft bestanden uitgebreider en nieuwer.
    Op en of aanmerkingen zijn welkom als mede gebruiks ervaring

    Gr Aat

  •  04-28-2014, 16:58 631324 in reply to 631319

    Re: Betreft: Re: AVCHD smart rendering.

    F.Zwarts:

    I do not see the Smart option in the type drop down. Not even if I create a new project with only one single scene file from my camera. Could you show a screen dump of where I should expect this option?

    Where can I find more details about the restrictions that apply for smart rendering?

    Fast rendering was one of the main reasons to upgrade my system and it is the first feature mentioned in the announcement as important functions. So, I feel somewhat disappointed if it would turn out not to work.

    I've attached a screenshot of the Smart option. I'm currently running 17.3 (I think 17.4 should be the same regarding Smart)

    There are, in my opinion, a number of limitations that make the smart option  of very limited value. Most of all, if you include a title or photo on your timeline, you won't be able to smart render.


  •  04-28-2014, 17:06 631325 in reply to 631324

    Re: Betreft: Re: AVCHD smart rendering.

    And here is a screenshot of a MTS file offering itself up to be smart rendered. Note that it's going to be put in a MP4 wrapper, although that's not really a problem.

  •  04-28-2014, 17:24 631327 in reply to 631321

    Re: Betreft: Re: AVCHD smart rendering.

    fietser1:

    Sorry a am dutch

    There is no need to apologise :-)

    Trying to make some sense of what you have posted, it looks to me that you also aren't using the Smart option. It will, in some circumstances, improve render times by almost an order of magnitude. But you need to select Smart.

    I've also worked with another editor that claims to Smart render. (It's a Magix product. Some other mods may edit this entry, but I think that's pointless) Magix doesn't make it a major sales point of the feature, mainly because it is unreliable (though less so than PS17) and I see exactly the same issues - Smart working for a while then slowing down to normal speed. It is using direct stream copy to achieve the speed up, and it is also using the Intel quicksync interface, which obviously has a rudimentary smart feature built in. Even mediacoder attempts to use the feature.

     

     

     

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