QuickTime Timecode added to MP4/MOV randomly?

  • Hi there,

    I've been using VoukoderPro with DaVinci Resolve, and I've been testing multiple scenes to try to find one that fits my needs. One of those needs is that the file needs to direct play in the official Plex Media Player for Android/iOS.

    I've recently found that some of the encodes I was testing were being transcoded by Plex, which didn't make sense to me. I eventually realized that the video files that were being transcoded included a 3rd track (besides video and audio):

    For some reason, this is causing Plex to transcode these files. What's stranger is that this timecode track is being added randomly to my files. In DaVinci Resolve, I pick the same scene, encode it multiple times, and sometimes the track is included, sometimes it's not. This could be a me problem, but so far I have not noticed that I changed anything else between encodes for some video files to include this timecode track, while others don't.

    It seems that this was introduced after this thread, but I can't seem to find a way to disable this behaviour for mov/mp4 containers. Does such an option exist?

  • Vouk 11. Juni 2024 um 19:16

    Hat das Thema freigeschaltet.
  • Thoughts on this Vouk?

    Yesterday I did some more tests and encoded the same clip multiple with the same scene settings but only changing the quantizer value for hevc_nvenc (to compare file sizes and output quality),a and while some of the tiles contained the timecode track, others didn't.

  • If you want a timecode track set this needs to be enabled in the muxer settings now:

    Awesome, thank you for this. I'm guessing this applies to both MOV and MP4, right?

    previously hardcoded

    But if it was hardcoded, shouldn't all encoded files contain the timecode track, cause that's not what I observed. Some had it, some didn't, which I found strange.

    Available in the next release.

    I should know better than to ask this, but any ETA? 😅

  • It should have been always set (at least with a certain muxer). But different muxers handle it differently.

    I have no date set when it will be available for you to test yet.

    It's not what I was observing. In fact, I rendered the same video multiple times until I got a version without the timecode track. A bit of a pain 😅, but until that new version is out, it's what I have to do, otherwise the files won't direct play for me with Plex.

    Hopefully you can get that new version out soon 🤞. Keep up the good work.