Questions tagged [video]

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

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173 votes
6 answers
132k views

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 ....
yuyu's user avatar
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65 votes
13 answers
189k views

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 ...
davidhq's user avatar
  • 1,419
58 votes
6 answers
134k views

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 ...
D.W.'s user avatar
  • 4,048
51 votes
5 answers
61k views

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 ...
Sara Melish's user avatar
49 votes
5 answers
54k views

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 ...
drfrogsplat's user avatar
  • 8,610
45 votes
8 answers
307k views

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's user avatar
  • 2,035
42 votes
3 answers
201k views

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 ...
anony88's user avatar
  • 421
39 votes
6 answers
97k views

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 ...
neoneye's user avatar
  • 3,172
33 votes
6 answers
65k views

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 ...
neoneye's user avatar
  • 3,172
32 votes
2 answers
25k views

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 ...
drfrogsplat's user avatar
  • 8,610
29 votes
5 answers
83k views

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 ...
jlpp's user avatar
  • 457
29 votes
9 answers
317k views

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 ...
AngryHacker's user avatar
  • 2,375
25 votes
3 answers
27k views

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"...
Stephane's user avatar
  • 351
24 votes
4 answers
14k views

2022 high kernel_task CPU usage with external monitor reaching to 1000%

I set this to 2022 since there is a historical nature to this issue. I cannot seem to find any specific articles that seem reasonable. The problem is with using an external monitor with the MacBook ...
intafon's user avatar
  • 371
22 votes
2 answers
28k views

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's user avatar
22 votes
2 answers
106k views

How to capture still frame from video on iOS?

I have a video on my iPhone that I recorded using my iPhone. I want to extract a single frame as a still image, preserving the full quality and native resolution of the recording. I know it's ...
Nic's user avatar
  • 3,742
21 votes
7 answers
11k views

What options are available to _losslessly_ trim mp4/m4v video in macOS?

I have some DRM-free m4v video that I would like to edit by trimming here and there. QuickTime X ($0) Pros: free, built-in to OS X Cons: selector to choose 'start' and 'end' times is not very ...
TJ Luoma's user avatar
  • 20.7k
21 votes
9 answers
45k views

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 ...
suryanaga's user avatar
  • 333
19 votes
4 answers
2k views

Good software for watching videos on Mac?

I want to watch videos on my Mac but I don't like QuickTime. I was wondering what the community recommends. In particular, I was interested in some granular ability to slow down the video or speed it ...
Charlie Parker's user avatar
19 votes
3 answers
87k views

How to find out frame rate (FPS) of an AVI video on OS X?

Pretty straightforward question: How can I find out FPS of a video file on Mac OS X? (QuickTime does not open the video because of not installed codec; but VLC does, though.)
ahmet alp balkan's user avatar
18 votes
5 answers
39k views

How to access "Faster (fine)" and "Slower (fine)" playback controls on VLC for OS X? Else, what alternative?

I'm a little impatient. When I watch recorded technology conference sessions, I like to speed a video up during parts I can grok quickly, and slow it down to normal when knowledge isn't sinking in ...
Chris W. Rea's user avatar
  • 4,409
17 votes
7 answers
97k views

iMovie: Crop and letterbox (ignore aspect ratio)

I have a project in iMovie and I want to crop part of one of the included clips to a rectangle that isn't 16x9 or 4x3 or any standard aspect ratio. As far as I can see, iMovie will only let me crop in ...
Nathan Greenstein's user avatar
17 votes
4 answers
22k views

Installed mpv with Brew, but nothing in Applications

I'm trying to play anime with mpv. I have heard that it's the best player for anime. https://mpv.io/installation/ I go to the website and I see that there's homebrew. I run brew install mpv. It ...
Harry's user avatar
  • 2,210
17 votes
5 answers
25k views

"locked" iPhone video playback mode for children?

After we upgraded to iPhone 4, one of our old iPhones was pressed into service as a children's video playback device for our 1.5 year old. That's one of the best things about an iPhone upgrade -- ...
Jeff Atwood's user avatar
  • 2,749
17 votes
4 answers
40k views

Why does a video file get bigger after editing it with iMovie?

Input File: Kind: MPEG-4 File Size: 305 MB Dimensions: 640 x 360 Codecs: H.264, AAC Duration: 52:07 Audio Channels: 2 After using iMovie to trim a bit from the beginning and end of the file, I tried ...
Human's user avatar
  • 697
16 votes
3 answers
28k views

Is there an easy way to reduce quality of .mov files taken from an iPhone?

I've noticed the small movies I take on my iPhone 4 result in large .mov files. For example, a 1 minute movie results in almost a 100MB .mov file. This is running through my cloud storage (Dropbox) ...
Jeremy Mullin's user avatar
16 votes
12 answers
88k views

Is Apple TV intelligent enough to stream directly from a NAS?

I'm considering purchasing an Apple TV. I understand that I need to include movies in iTunes in order to play them on the device. On my iMac, my movies are linked in iTunes over a shared drive to my ...
Jim Casey's user avatar
  • 161
15 votes
2 answers
29k views

Why is my video playback speed way too fast (~30x) on an external monitor?

Videos I watch play back at massively increased speed when my Mac is connected to this particular external monitor. Series played on HBO Max, for example, progress at about a 30x rate, meaning I see ...
Chris's user avatar
  • 151
14 votes
8 answers
6k views

Screen video capture application

I am Looking for a program that let's me capture screen videos on Mac OS X. I am requesting it for these two use cases: Capture of a webcam. It should allow capturing only the webcam App window. ...
Ricardo Sanchez-Saez's user avatar
14 votes
1 answer
53k views

QuickTime Player: How to Reduce Playback Speed?

In QuickTime Player, I'd like to play the video back at slower than real-time speeds. I see that it's possible to play back at faster than real time speeds -- by pressing the option key and clicking ...
Sparky1's user avatar
  • 447
14 votes
1 answer
10k views

Processing videos through iMovie increases file size by 70x

This is just a curiosity of mine. I screen recorded ~5hrs of video using Quicktime, split up into roughly 10-20 minute segments. The folder which I saved them to is 4.73 GB big. However when I string ...
CraftedCart's user avatar
  • 1,510
14 votes
3 answers
135k views

Can I stream any video played with VLC player to Apple TV?

Can I stream any video played with VLC player to Apple TV ? Any additional plug-in for it...?
aneuryzm's user avatar
  • 5,429
13 votes
4 answers
91k views

Best way to import analog video (VHS) to Mac

I have some old VHS tapes that I would like to digitize. I have seen some expensive converter boxes, that come with proprietary software, that you can buy that will auto-encode and create a DVD for ...
Andrew's user avatar
  • 651
13 votes
5 answers
24k views

Video stuttering in Google Chrome with hardware acceleration enabled

Google Chrome comes by default with Hardware Acceleration enabled. This setting can be changed from the advanced settings. I'm experiencing a very frustrating problem where most video content on ...
kettlepot's user avatar
  • 1,759
13 votes
7 answers
40k views

QuickTime Player won't save edited file: The operation could not be completed

I've edited an MP4 movie file in Quicktime Player Version 10.5. When I try to save the edited file, I get: The operation could not be completed. Does anyone know what causes this and/or how it can ...
Richard Kranendonk's user avatar
12 votes
2 answers
4k views

How can I start recording on two iPhones at the same time?

I have tried searching online with a broad variety of keywords, all of which turned up results for "shooting with both cameras on the same device". Searching Video Production Stack Exchange ...
Aya Noaman's user avatar
12 votes
5 answers
740 views

How do I convert video for an iPad?

I need to convert some of my movies and other videos for the iPad and I am wondering what solutions are available for this. Ideally, I would like to have something that adds the new video afterwards ...
gyurisc's user avatar
  • 1,559
12 votes
5 answers
25k views

How to split a movie into many movie files, split by chapters?

I'm trying to take a movie that I need to analyze for an essay and split it into 18 movie files, one for each chapter (as defined by pre-existing chapter markers), for ease of watching one scene at a ...
user24601's user avatar
  • 6,242
12 votes
2 answers
6k views

How can I disable sending 'Reactions' that appear during video calls that I join from macOS?

With macOS Sonoma, 'reactions' like balloons, thumbs up, and fireworks appear during video calls (FaceTime, but also Google Meet, and Microsoft Teams meetings etc). Depending on the meeting, I feel ...
stevec's user avatar
  • 5,005
12 votes
4 answers
10k views

Disable zoom animation in Chrome when going to full screen video

When switching back and forth between full-screen mode for YouTube videos in MacOX Mavericks, I find the zoom effect very annoying and jerky. Is there a way to turn this off, so such videos can just ...
Mike Chamberlain's user avatar
11 votes
8 answers
34k views

How do I filter videos by size to identify the largest in Photos app on OSX?

I need to find the largest video files, because my videos takes a lot of space but I dont know how to do this: It seems to not to be there any option for filtering by size
Bartłomiej Semańczyk's user avatar
11 votes
9 answers
69k views

How can I mirror my iPad display wirelessly?

I am looking to display my iPad screen wirelessly to an external display to demo applications. I found this video showing exactly what I want to do with an iPhone but no explanation as to what the ...
Aaron's user avatar
  • 211
11 votes
2 answers
2k views

UHD Blu-ray playback on iMac 5K 2017?

I recently saw that there are already UHD 4K Blu-ray drives (with SATA) available, like this one from Pioneer which should (combined with appropriate USB housing) make mounting the disks in macOS ...
YourMJK's user avatar
  • 516
10 votes
3 answers
15k views

Safari videos always go full-screen by themselves

Since I updated to 10.12.4, whenever I go to a website playing video (tested on YouTube, Vimeo and others), Safari 10.1 takes a few seconds to start the video and then plays it in fullscreen, whether ...
Alex Wally's user avatar
10 votes
6 answers
52k views

Is there a way to stream video to an Apple TV without iTunes? [closed]

Can I stream video to an Apple TV without using iTunes? iTunes is good, but if I can have another way to stream video, it would be great.
prosseek's user avatar
  • 5,694
10 votes
2 answers
21k views

macOS : stream a "false" prerecorded image/video to my webcam

I want to feed my webcam with a "false" prerecorded image/video (as allowed camcamx soft on mac). How to do ? Do you know a method or software? An alternative to camcamx ? I use MacOS 10.11 Sierra ...
NIF's user avatar
  • 699
10 votes
8 answers
261k views

How can I get a video *into* the photo/video gallery on an iPad or iPhone?

Let's start by assuming that I have a perfectly compatible file. (In my use case, I was literally trying to get a video I took on my iPhone, that lives in my iPhone photos/video gallery, onto my iPad, ...
Jaydles's user avatar
  • 5,215
10 votes
4 answers
74k views

How do I record video on iOS with external audio interface?

I would like to record a camera video on my iPad, but I do not want to use the internal microphone. I have a USB audio interface connected with the Camera Connection Kit, and the interface works ...
spinalwrap's user avatar
10 votes
5 answers
169k views

How many HD video minutes do I get per 1GB of free storage?

I have 7GB free. If I give that to someone to record, what sort of ballpark figure would I get for a HD video recording? There may be about 10 individual videos being recorded over a couple of hours, ...
Neil Trodden's user avatar
9 votes
2 answers
14k views

Automating ffmpeg using Automator Service

I often use ffmpeg off the command line to convert video files into mp4 on my Mac (running Mavericks). Do note, however, that I am NOT re-encoding my videos; am just changing the container from an avi ...
TheLearner's user avatar

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