Page 1 of 2 12 LastLast
Results 1 to 15 of 19
  1. #1
    Question QuickTime 10 Video Trimming Question/Problem
    For years, I've been using QuickTime 7 Pro to trim videos. Nothing else. Just removing the portions of the movie that I don't want in order to save hard drive space. Since it's a 32-bit app, I'm trying to get used to using QuickTime 10 to accomplish this same task, since I won't be able to run QuickTime 7 Pro in future macOS versions. For some reason, I only thought you could trim the ends of movies with QuickTime 10 (using CMD + T), but recently discovered you can divide the movie up into clips, so you can delete the clips you don't want even if they're in the middle of the movie. The method is to go to View > Show Clips (or press CMD + E) and then move the playhead to where you want to split the movie into 2 clips and go to Edit > Split Clip (or press CMD + Y). Any unwanted clip can be clicked on and deleted by pressing the Delete key. After you are finished, you press the Done button.

    Well, here's the issue. I'm using QuickTime 10.5. Most of the video's I'm editing are in MP4 format. When I'm using QuickTime 10 to trim these videos as described above and click Done, I obviously want to save the trimmed video. Well here are the three situations that could happen:

    1. It lets me save the trimmed video using File > Save (CMD + S) as another MP4 file.
    2. It won't let me use CMD + S*, but if I try to close the video, it will prompt me to save as another MP4 file.
    3. It won't let me use CMD + S*, but if I try to close the video, it will prompt me to save as a MOV file. There is no choice to save as MP4.

    The problem is when the 3rd situation happens (only option is MOV). The file size is WAY too large. For example, today I was trimming a 355 MB MP4 video. I trimmed it from 22:04 down to 3:43. The MOV file QuickTime 10 saved was 208 MB. Well, considering that the video length was reduced to only about 17% of the original length, you'd expect the edited video to be around 60 MB. Well, lo and behold, if I trim this same original video in the same way using QuickTime 7 Pro and save it as a MOV file, it is only 61 MB (as you'd expect).

    So what gives? How can I get QuickTime 10 to save as MP4 consistently or save to MOV at an acceptable file size like QuickTime 7 Pro does? When QuickTime 10 does let me save as an MP4 files (situations 1 and 2), the file size is the same as QuickTime 7's MOV files.

    *I've noticed that sometimes the CMD + S option will be available after you split 1 clip, but then disappear after another split. Sometimes it will let you make multiple splits before it disappears. Then sometimes it won't let you make even 1 split without disappearing.
    Last edited by usagora; 02-02-2019 at 05:15 PM.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  2. #2
    Any ideas? I've just posted this to the Apple forums as well, so hopefully I'll be able to glean some sort of solution to this issue, as it sucks to spend time trimming down a video and end up with a file that's over 3 times the size it should be.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  3. #3
    Any ideas at all, folks? I'm getting no response on the Apple forums either. Surely I can't be the only one using QuickTime for basic editing like this.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  4. #4
    Any ideas why QuickTime 10 won't let me save edited MP4s as MP4s or why its MOV exports are so much larger than those of QuickTime 7 Pro?
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  5. #5
    Over 500 views of this thread and no one has any ideas? Is my OP not clear? I'd sure hate to have to use iMovie to do such simple edits, but I guess I can try that tonight and see if it is capable of saving as MP4 or as a reasonable-sized MOV. I know there's VLC, but I don't think it can do what I'm needing. Let's say I have a video that has the following sections:

    A - B - C - D - E

    I may need to cut out sections C and E and keep sections A, B, and D. In other words, I need to keep more than just one contiguous portion of a video. From what I read, VLC can only export one contiguous portion of a video, not delete various portions of the video and then export the remainder.

    Does that make sense? I'd really like to be able to use QuickTime 10 to do this, as it is such an easy process. But when it comes to exporting the result as a reasonably-sized video, it's completely unreliable (unless I'm missing something...thus the thread).
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  6. #6
    QuickTime 10 Video Trimming Question/Problem
    IWT's Avatar
    Member Since
    Jan 23, 2009
    Location
    Born in Scotland, Worked in Scotland then England, Now live in Wales
    Posts
    6,484
    Your Mac's Specs
    iMac 5K Retina 27", August 2019, 3.6GHz Intel Core i9, Memory 32GB, 2TB SSD, macOS Mojave 10.14.6
    Rep Power
    22
    Jonathan

    I'm really sorry that you have had to make so many posts - and no, your OP was perfectly clear.

    I suspect that our members either use iMovie/Final Cut Pro or don't do much video editing.

    I used to do a fair bit of video editing using iMovie, but age and a drop in interest has seen that fall away. And I can't help much with QuickTime Player which in my case is 10.4.

    Not much of a reply, I'm afraid.

    Maybe Apple Support Forums would render a better response?

    Ian
    Ian

  7. #7
    Quote Originally Posted by IWT View Post
    Jonathan

    I'm really sorry that you have had to make so many posts - and no, your OP was perfectly clear.

    I suspect that our members either use iMovie/Final Cut Pro or don't do much video editing.

    I used to do a fair bit of video editing using iMovie, but age and a drop in interest has seen that fall away. And I can't help much with QuickTime Player which in my case is 10.4.

    Not much of a reply, I'm afraid.

    Maybe Apple Support Forums would render a better response?

    Ian
    Thanks anyway, Ian. I was starting to wonder if my thread was invisible I posted this same thing on the Apple Support Forums and have received no replies since Sunday. I never dreamed this would be such an esoteric topic, as the problem seems pretty basic.

    It's a shame QuickTime 10 isn't on the level of QuickTime 7 Pro, where all you have to do is move 2 sliders and hit the delete key to delete a section of a video. You could also easily replace the audio track.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  8. #8
    QuickTime 10 Video Trimming Question/Problem
    MightyGem's Avatar
    Member Since
    Nov 29, 2010
    Location
    Warrington, UK
    Posts
    2,351
    Your Mac's Specs
    PPC Mini, 10.4.11. Intel Mini, 10.6.8. White MacBook, 10.8.5MacBook Pro, 10.14.6. iPhone 5 iOS 11.3.
    Rep Power
    12
    It must be something to do with v10.5. I'm using 10.4 and it always saves a trim as an mp4 file. Saving as a .MOV never comes up as an option.

  9. #9
    Quote Originally Posted by MightyGem View Post
    It must be something to do with v10.5. I'm using 10.4 and it always saves a trim as an mp4 file. Saving as a .MOV never comes up as an option.
    I think that may be true of 10.5 as well. The problem seems to be with clips. In other words, if you're just using CMD + T to bring up the yellow sliders to adjust the beginning and ending of the movie ("trim" it), then it works fine, but if you use CMD + E to split the movie into multiple clips so you can delete the unwanted clips, it becomes a crap shoot as to being able to save as MP4 (usually resulting in a MOV export that is over 3x the size it should be). I'll see if I can find out if perhaps QuickTime 10 is retaining the deleted clips in the MOV export, just hidden from view. That might explain why the file size is so bloated.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  10. #10
    Well, I never found a solution for this, so I guess QT10 is a no-go for simple video trimming for me due to the unreasonable file sizes and buggy save option. Oh well...a real shame too, since the controls are so straight-forward.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  11. #11
    QuickTime 10 Video Trimming Question/Problem
    Slydude's Avatar
    Member Since
    Nov 16, 2009
    Location
    North Louisiana, USA
    Posts
    15,038
    Your Mac's Specs
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone XS, 2015 iMac 16 GB 10.15.5 beta
    Rep Power
    26
    Sorry I haven't responded sooner. Not sure why I didn't answer the first time. Maybe I was busy with something else.

    I've used Quicktime Player quite a bit for the kind of editing you're doing. In fact, I was using it to shoot and edit some of the video chats as well as a few other things. I wasn't using the trim function much since I never got the hang of that. I usually just used the split clip function. I've had some of the problems you mention.

    I don't have a definite answer for why you are sometimes forced to use .mov as the filetype, but I have a theory. When I've had that issue it has been with things such as captures of old videotape that has started to degrade. I wonnder if the timecode did not save properly when the file was saved and the problem gets compunded as the file is edited. Just a theory mind you.

    One thing I did try when this happened and it seemed to work. I think I remeber saving the problem file as an mov which is what you are forced to do and then converting the file to mp4 later. I thought I was doing all of that in QuickTime but I don't see those settigns in the current version after giving it a quick look. I might have used something else to do the conversion.

    I'm not convinced there wasn't a bug in some versions since sometimes files would not save/export no matter what I did. Even if the original file was something recorde s a screenshot of the Mac.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  12. #12
    Thanks for your reply, Slydude. I do believe I just discovered the problem with the file size difference between QT7 Pro and QT10, though unfortunately don't know if it can be resolved. I viewed the "Movie Inspector" for a video edited and saved to .mov in QT7 Pro and the data rate is 2.37 Mbit/s. When viewing the inspector for a video edited and saved to .mov in QT10, the video has a data rate of 7.47 Mbit/s. That ratio (7.47:2.37) matches the ratio of the 2 file sizes. That's the only variable that's different. There doesn't appear to be a UI way to change this setting in either program. I wonder if there is a preference file somewhere that can be changed or a terminal command that can be used to cap the data rate for QuickTime encodes? There is no discernible quality difference to my eye between the two data rates, so obviously I'm going to opt for the lower data rate to save space.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

  13. #13
    QuickTime 10 Video Trimming Question/Problem
    Slydude's Avatar
    Member Since
    Nov 16, 2009
    Location
    North Louisiana, USA
    Posts
    15,038
    Your Mac's Specs
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone XS, 2015 iMac 16 GB 10.15.5 beta
    Rep Power
    26
    Good detective work there. I don't think there is a way to control that data rate setting in QuickTime Player X. There are a number of conversion programs, some free, that will adjust that setting.

    I'm pretty sure you can change the data setting in QuickTime Player Pro version 7. I can't run it at the moment in the Mojave beta to see see because it keeps crashing. I found this manual for Quicktime 7 Pro. Look at Chapter 4 I think by reading that you'll get the idea where to look. Basically choolse one of the meany export formats avaailable and then I think there is someting in the windw that allows you to change various parameters.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  14. #14
    QuickTime 10 Video Trimming Question/Problem
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    60,217
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Catalina
    Rep Power
    56
    Over 500 views of this thread and no one has any ideas?
    We get this question every now and then. Maybe you already know this but for others that might not, the 500 views does not mean it was viewed by our forum membership 500 times. The 500 times includes those views that were done with various search engines throughout the internet.

  15. #15
    Quote Originally Posted by Slydude View Post
    Good detective work there. I don't think there is a way to control that data rate setting in QuickTime Player X. There are a number of conversion programs, some free, that will adjust that setting.

    I'm pretty sure you can change the data setting in QuickTime Player Pro version 7. I can't run it at the moment in the Mojave beta to see see because it keeps crashing. I found this manual for Quicktime 7 Pro. Look at Chapter 4 I think by reading that you'll get the idea where to look. Basically choolse one of the meany export formats avaailable and then I think there is someting in the windw that allows you to change various parameters.
    I'm fine with the existing data rate in QT7 Pro as it pretty much matches the original files (only slightly higher)...just wish it could be changed in QT10 as there's no point in using 3x as much storage for no visible quality difference. Hopefully Apple will decide to giver users more control in the future instead of going backwards in these areas.
    Jonathan
    2019 iMac (27"/i9/64GB) | 2012 iMac (27"/i5/16GB) | 2013 MacBook Air (13"/i5/4GB) | iPhone SE (2020) | Apple Watch Series 4

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. MS Office for Mac / trimming down the fat!!
    By Maximus in forum macOS - Apps and Games
    Replies: 7
    Last Post: 07-28-2011, 05:13 PM
  2. trimming videos in iphoto
    By graph101 in forum Movies and Video
    Replies: 1
    Last Post: 08-17-2010, 11:15 AM
  3. help trimming/fading songs
    By mrstilly in forum Music, Audio, and Podcasting
    Replies: 5
    Last Post: 03-22-2010, 06:54 PM
  4. Question about video
    By Kam2713 in forum Movies and Video
    Replies: 1
    Last Post: 09-08-2008, 03:23 PM
  5. video question
    By CouesFanatic in forum Switcher Hangout
    Replies: 2
    Last Post: 07-21-2006, 01:46 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •