Ending up with a different runtime when I export... help!

Report · Mar 05, 2017

The movie on my timeline in Premiere Pro CC 2017 is 2:32:55 (yes, that's 2 hours 32 minutes)... but when I export it as a H.264 .MP4 (Progresive, Square Pixels, Use Maximum Render Quality clicked) it ends up at 2:33:04. It wouldn't be a big deal, except there are subtitles involved... and even a few extra seconds is going to devastate that.

The sequence settings are at DSLR, 23.976 FPS, Square Pixels, No Fields, 23.976 FPS display format, sample rate 48000 Hz. Only button checked there is "Composite in Linear Color." 99% of the video in the project in the sequence is 23.976 FPS but there might be a couple files at 30 FPS. Maybe. I doubt it.

How do I keep the video locked at the length it is on my timeline, 2:32:55? I see a "Match Source" button I can click, would that be it? It takes about 5 hours to render so I want to have some idea of what's going to actually work before dinking around too much.

Report · Mar 05, 2017

How exactly are you determining the final run time?

Report · Mar 05, 2017

Looking at the last frame of the movie on the timeline. And when I export, I have the Mark In set before the first frame, and the Mark Out set right after the last frame.

Report · Mar 07, 2017

You don't need to set In and Out points for export. Without any set, the entire sequence will go.

But...what I was asking is how are you determining the duration of the exported file? How do you know it's 2:33:04?

Report · Mar 08, 2017

Jim, I know that's the final exported movie's length because that's what it clocks out at. Whether I right click on it and see Properties, whether I play it, or even whether I upload it to Youtube.

Report · Mar 08, 2017

Bring the exported clip back into PP and lay it over the sequence.

Any difference?

Report · Mar 08, 2017

Jim... huh, yeah. When I lay out the exported .MP4 back into Premiere, it does clock out at the correct time of 2:32:55, not 2:33:04.

What's making it appear as 2:33:04 in Windows Media Player and Youtube (when I upload it)? Since I've timed my subtitles to the Premiere timeline, should I not worry about it, then?

Report · Mar 09, 2017

should I not worry about it, then?

I'd go with that.

Report · Mar 05, 2017

Could it be I need to change it to Non Drop Frame Time Code in the sequence settings?

Report · Mar 05, 2017

Unless you are resizing (say 4k media to output on a 1920x1080 export) ... "Maximum render quality" only slows things down, that control is only of use to smooth "jaggies" you might get on diagonal lines in a resized frame-size.

Also, "composite in linear color" is far more useful if you've got 10-bit media, or are doing a lot of heavy-duty color or compositing work (blending modes, blending upper tracks over lower ones, that sort of thing). If you've not done a lot of intense color/compositing/blending work, and especially if you're using 8-bit media, the composite in linear color option doesn't help much.

Neil

Report · Mar 07, 2017

I had the same problem and I fixed it ! Apparently the encoder requires 3to4 times more space than the final video output size.So for example if your video is estimated at 10gb output size Atleast keep 45to50 GB free on the drive you're trying to export.hope it helps someone here

Report · Mar 07, 2017

Oh ... glad you caught that! That's always been the case, and frequently may get skipped when we-all is helping. Perhaps we just assume that "everyone" knows that, which naturally is not a wise thing to assume. Why would "everyone" know that at all?

It's better with spinning discs particularly to have 5-6 times the expected file size just to render reliably. To get better performance for the render, a disc with 50% clear or better (seemingly no matter the T-bytes involved) will work faster.

3rd-generation SSD's seem to be able to perform well with a bit lesser space, but you will still need at least 3 times the expected file-size clear on the storage media for PrPro to do its typical process of writing the file.

Neil

Report · Mar 08, 2017

Eh... so if I free up space on my cache drive.... that will somehow make Premiere make the final exported file the correct length as listed on the timeline and not 15 seconds longer?

Report · Mar 27, 2017

Eh, this is still presenting a bit of an issue. When I import my subtitles file into the Youtube video, which has the incorrect time, the subtitles suffer the lag/delay and become completely off by the end of the movie.

So how do I make sure that the file I export, Youtube, etc., won't process an incorrect time?