Questions tagged [quicktime]
QuickTime is a media framework developed by Apple. It is mostly known for its QuickTime Player, which is available for Mac OS X and Windows platforms.
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EXIFTOOL, track creation date, and timezone
I am trying to make sense of the QuickTime/TrackCreateDate value obtained for a file created by camera recording on an iPhone 15, latest OS. In this case, I was in Japan at the time. According to ...
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ffmpeg png to mov keep exact colors
When I convert a PNG sequence to a h264 (yuv420p) movie and read the color values via FFmpeg's rawvideo pipe output, the values on each pixel is slightly modified.
This is how I write my image:
import ...
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Stream an MP4 file via HTTP in a QuickTime-compatible format using FFmpeg
QuickTime supports streaming from an HTTP server, for instance try opening https://ia801307.us.archive.org/18/items/kontikipart2/kontikipart2.mp4 via File -> Open Location.
However, streaming the ...
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A/V Controls button for Slow motion in QuickTime Player (10.5)?
I find that Apple answers this question
Slow motion in QuickTime Player (10.5) in Mac?
From https://discussions.apple.com/thread/250493652
You can use the keyboard shortcuts below for slow motion ...
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Enabling all sound tracks in a .mov via ffmpeg
I run the following command:
ffmpeg -i "SToutput.wav" -filter_complex "[0:a]channelsplit=channel_layout=stereo[left][right]" -map "[left]" -map "[right]" -c:a ...
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ffmpeg last frame freezes, audio keeps playing
I'm using fffmpeg to cut an H.264 video into specific shots. I need it to be frame accurate, which isnt a problem if I only encode video (now that I know how to calculate the ms from the number of ...
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There is a greyscale in my alpha mask I extracted from a .mov file, is there any way to make the alpha mask .mov only white and black?
so what the title says. I've never used ffmpeg before but I really need to extract an alpha mask for a project. The problem is a grey color which should be white so when I merge it with the main video ...
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video file issue - unable to extract or open file on mac os x
I decided to download one movie from torrent and the description says
Video
ID : 1
Format : AVC
Format/Info ...
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Quicktime Player Resizing Window
How can I resize the window while a video is opened with Quicktime Player freely?
For instance resizing the width resizes the length along with it, vice versa. I wouldn't mind to have black bars on ...
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Mp4 file that plays fine on Windows Quicktime but video frames not in order and out of sync with audio in VLC
Someone has sent me a video that I wish to embed into a presentation I'm building. However, it doesn't play back as the author intended either embedded or standalone. I suspect was encoded on a Mac, ...
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How to convert MOV (with Alpha) to MP4 (with ALpha) - using FFmpeg [closed]
I am trying to convert a MOV (with alpha channel) to WebM and Mp4 (with Alpha channel) using FFmpeg.
The WebM video is coming with the Alpha channel.
But the video is not supported in SAFARI Browser.
...
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What ffmpeg command would convert a video for iPad/iPhone in 2021?
One of the answers almost a year ago was to use the following command:
ffmpeg -i input.mp4 -vcodec libx264 -profile:v main -level 3.1 -preset medium -crf 23 -x264-params ref=4 -acodec copy -movflags +...
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Unable to use quicktime player to do screen recording on my Mac
It used to work, because I distinctly remember using it. But for some reasons, it no longer does. I was trying to use quicktime player to do a quick screen recording. I opened quicktime player, I ...
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FFMpeg seek mkv x265 to x264 start + end generate bad duration and black output
I don't understand if I am missing a parameter or am I wrong to understand the documentation.
I have a program that forces me to use FFmpeg (so I can't use ffprobe). FFMpeg I am using "N-99928-...
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Keeping metadata in FFmpeg image sequence to video
When creating a video from an image sequence with FFmpeg, how do I also copy the metadata from the first image in the image sequence (within reason: creation date, GPS coordinates, etc.; maybe not ...
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