Ask Different Stack Exchange
Ask Different Stack Exchange

Questions tagged [video]

Video is series of still images played back at high speed to give the appearance of something moving.

Video is series of still images played back at high speed to give the appearance of something moving. In digital context, video refers to files that contain all of the data for these images in a single file. Some common video formats on the Apple platforms are Quicktime and MPEG Layer 4, commonly called mp4.

1276 questions
158
votes
6 answers

Convert .mov to .mp4

I want to convert .mov to .mp4! I saved the video from iMovie but it is in .mov format! How do I convert it to .mp4? I'm using a MacBook and I want to share it to my phone, but my phone can't open .mov format video.
yuyu
  • 1,681
  • 2
  • 9
  • 3
64
votes
13 answers

VTDecoderXPCService taking CPU

Sometimes I notice CPU load for no reason and I see in Activity Monitor that VTDecoderXPCService is using 15-30% of CPU. After I restart Safari it is ok for some time until it happens again. Any ideas? Could be flash related? When this happens there…
davidhq
  • 1,399
  • 5
  • 19
  • 26
51
votes
5 answers

How to use youtube-dl --cookies

How do I use the --cookies option to youtube-dl to download a Youtube video? Can anyone provide a worked example of how to obtain the relevant cookies for Youtube and put it in the appropriate format for youtube-dl? Context: I want to download a…
D.W.
  • 3,858
  • 10
  • 37
  • 60
47
votes
5 answers

Quick Look support for non-native video files (.avi, .mkv) on Mavericks

In the past, we've been able to get codecs for DivX/XviD/MPEG4 and support for containers like AVI, MKV in Mac OS X's Quick Look feature using Perian (as per this question). As noted on the Perian site, development has ceased, and future versions…
drfrogsplat
  • 8,410
  • 5
  • 40
  • 68
45
votes
8 answers

How do I make iTunes video play slower or faster?

I want to play videos in iTunes faster (1x, 2x, double speed, etc.) or maybe slower. How do I do that?
David Faux
  • 2,025
  • 7
  • 25
  • 22
42
votes
3 answers

How do I prevent the mirror-effect in video recordings in Photo Booth?

I am trying to record a lecture using Photo Booth on my Macbook but I want to be able to record what the professor has on the board. Unfortunately, photobooth seems to have a mirror image, so that all the writing is reversed. How do I get the camera…
anony88
  • 421
  • 1
  • 4
  • 3
39
votes
6 answers

How can I crop a video?

How does one remove a black border around a video. The input video has the size 720x576 and has the output video should be 720x480. I need to crop away 96 pixels from top and bottom. I have gazed through this list of video tools for Mac, but I'm…
neoneye
  • 3,112
  • 5
  • 28
  • 43
35
votes
3 answers

How to record screen with the audio coming from your Mac?

I'm trying to record my screen and the audio only coming from my Mac. When I do a screen recording with quicktime, with audio settings: internal microphone, it records the video but with a lot of external noise (like cats). How do I make sure that…
Sara Melish
  • 351
  • 1
  • 3
  • 4
33
votes
6 answers

How can I rotate a video?

I just recorded a video on my phone, but when I play it on my Mac it's in the wrong orientation. How can I rotate the video by 90 degrees so that I can upload it to youtube? Free solutions are preferred. I just found out how to do it using…
neoneye
  • 3,112
  • 5
  • 28
  • 43
30
votes
2 answers

Why won't video from ffmpeg show in QuickTime, iMovie or quick preview?

I've been using ffmpeg for the occasional video conversion for quite some time, and recently discovered that H.264 (libx264) videos generated by ffmpeg aren't working in iMovie or QuickTime (nor will they play or show a preview in Finder with the…
drfrogsplat
  • 8,410
  • 5
  • 40
  • 68
29
votes
5 answers

Fastest way to split a video file into two?

Does anyone know of software for OS X that can quickly split a 2 hour H.264 video file into two 1 hour files? iMovie estimates 2 hours just to import the file. I was hoping for something that could do it quicker.
jlpp
  • 457
  • 1
  • 5
  • 7
29
votes
9 answers

How to export a slo-mo video with the slow motion intact and without losing quality?

I have a nicely exquisite slo-mo video. I would like it to export to my computer. Simply copying the file by plugging into the USB cable loses all the slo-mo edits. Doing an export via Share by Email seems to lose the quality (it compresses…
AngryHacker
  • 2,275
  • 18
  • 46
  • 55
24
votes
3 answers

macOS annoyingly puts fullscreen videos in a new "space"

When watching a video on YouTube (or any other streaming service) – I use mainly Safari, sometimes Chrome, with the same result – when I switch to fullscreen, the video goes fullscreen in a new "Space" (virtual screen). I'm not interested in virtual…
Stephane
  • 341
  • 1
  • 2
  • 4
21
votes
2 answers

Terminal tool to join mp4 videos

I would like to join mp4 videos like I join pdfs by pdfjoin. Is there any default tool to join videos?
Léo Léopold Hertz 준영
  • 5,964
  • 18
  • 62
  • 103
20
votes
9 answers

How can I convert a .mov into a .gif (or a .apng)?

I want to put a .mov file I have as the background for a website. I am guessing the best way to do this would be to convert it to a .gif file but I can't find any programs that do it. I have tried Handbrake, Graphic Converter and Gif Builder.
sanjaypoyzer
  • 313
  • 1
  • 2
  • 6
1
2 3
…
85 86