Latest post Wed, Jul 24 2019 1:45 PM by Roland Achini. 5 replies.
Page 1 of 1 (6 items)
Sort Posts: Previous Next
  • Tue, Jul 23 2019 9:22 AM

    Export as H.264

     

    To submit a film to a film festival as a Quicktime movie, compression H.264 MPEG-4, profile Main@L4.1 (minimum), resolution 1920x1080, frame rate 25 fps progressive, and bit rate 10 mps are required.

     

    If I export the movie in Avid Media Composer as Full HD QuickTime Movie mp4 and set the bitrate to 10 mps, the result is a file that meets all of these conditions except the profile: This is Main@L4.0. A Google search (https://de.wikipedia.org/wiki/H.264#Profile) shows that only with a bitrate of >50 mps the profile Main@L4.1 is possible.

     

    Am I doing something wrong?

     

    MB: ASRock Z390 Taichi Ultimate. CPU: Intel Eight Core i9-9900K/3600 16MB Cache, SATA Hard Disks Raid (2x4 TB), GPU 1200MHz. GC: Gainward RTX2080 Super... [view my complete system specs]
  • Tue, Jul 23 2019 4:00 PM In reply to

    • DonE
    • Not Ranked
    • Joined on Tue, Aug 18 2009
    • California, USA
    • Posts 120
    • Points 1,400

    Re: Export as H.264

    From your link (but the English version) I read that L4 should decode a maximum of 20Mb/sec for 1920x108025p. L4.1 should decode a maximum of 50Mb. An Avid encode of 20Mb results in Main@L4.1 per MediaInfo. It doesn't look like you are doing anything wrong.

    1x AMC/Sy 8.6.5-Win10 Pro 64 1809-HP z800-dual 6core-24GB-Quadro FX 4800-Nitris DX QT775 NV341.74** 3x AMC/Sy 8.6.5-Win10 Pro 64 1809-HP xw8600-8GB-Quadro... [view my complete system specs]
  • Tue, Jul 23 2019 4:03 PM In reply to

    Re: Export as H.264

    Thank you DonE.

    What irritates me is that the Filmfestival Tech Departent asks for L4.1 and 10 mbps. These two values do not seem to be compatible.

    MB: ASRock Z390 Taichi Ultimate. CPU: Intel Eight Core i9-9900K/3600 16MB Cache, SATA Hard Disks Raid (2x4 TB), GPU 1200MHz. GC: Gainward RTX2080 Super... [view my complete system specs]
  • Tue, Jul 23 2019 4:11 PM In reply to

    Re: Export as H.264

    Have you tried exporting Same As Source, then convert to H264 using Handbrake?

    Media Composer Symphony | PT Ultimate | Win10 HPZ | OSX MBP | ISIS5000 [view my complete system specs]
  • Tue, Jul 23 2019 5:23 PM In reply to

    • DonE
    • Not Ranked
    • Joined on Tue, Aug 18 2009
    • California, USA
    • Posts 120
    • Points 1,400

    Re: Export as H.264

    Roland Achini:

    These two values do not seem to be compatible.

    It's not that they aren't compatible, as L4.1 must decode all lower levels. Avid is encoding the level that meets your settings, with no options to change it. HandBreak, set to Level:Auto, also results in L4 but HandBreak will encode at a level of your choosing. As long as you are OK with Job's suggestion of two encode steps and a third party app you might get what you want.

    1x AMC/Sy 8.6.5-Win10 Pro 64 1809-HP z800-dual 6core-24GB-Quadro FX 4800-Nitris DX QT775 NV341.74** 3x AMC/Sy 8.6.5-Win10 Pro 64 1809-HP xw8600-8GB-Quadro... [view my complete system specs]
  • Wed, Jul 24 2019 1:45 PM In reply to

    Re: Export as H.264

    Thank you Job and DonE.

    Both Handbrake and Adobe Media Encoder work fine.

    The problem with direct mp4 export from Media Composer is solved: First I experimented with small video files (2 minutes long). In these cases the profile I got was Main@L4.0. However after I exported the full movie (52 minutes) using the same parameters the profile is Main@L4.1.

    MB: ASRock Z390 Taichi Ultimate. CPU: Intel Eight Core i9-9900K/3600 16MB Cache, SATA Hard Disks Raid (2x4 TB), GPU 1200MHz. GC: Gainward RTX2080 Super... [view my complete system specs]
Page 1 of 1 (6 items)

© Copyright 2011 Avid Technology, Inc.  Terms of Use |  Privacy Policy |  Site Map |  Find a Reseller