All Questions
12
questions
1
vote
1
answer
440
views
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 ...
- 13
0
votes
1
answer
652
views
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, ...
- 1
0
votes
0
answers
750
views
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 ...
- 111
1
vote
1
answer
639
views
ffmpeg MOOV Atom on a ProRes file?
We have been asked by a client to create a ProRes QT file (.mov) but specifically asked to "The moov atom (movie index file) should be placed at the beginning of the file."
I have been reading around ...
- 15
1
vote
1
answer
1k
views
ffmpeg stuck in generating thumbnail of video
I'm currently writing a script to create thumbnails of videos in a folder, but as soon as ffmpeg hits a .mov video, it gets stuck. The videos were taken on an iphone at 4k 60fps and can be played back ...
- 21
1
vote
0
answers
259
views
How can I imitate the video codec of a Canon DSLR?
I have a Canon EOS Rebel SL1 (100D) with a stuck pixel in the screen that really bothers me out. I'm trying to play one of these "dead pixel fixer" videos on the camera in order to bring it to life ...
1
vote
1
answer
627
views
Quicktime .mov - Specify a Movie Header timescale of 24000
When I run my 24fps Quicktime mov files through an FFmpeg transcode they are coming out with a Movie Header timescale of 1000, when the source file has a timescale of 24000. This low timescale value ...
- 315
2
votes
2
answers
328
views
Command line way to flatten a multi-channel-audio .Mov into a single-channel-audio .Mov?
Caveat: I'm not very familiar with audio codecs and terminology, so it could be that I'm not using the correct words to describe what I want to do. I've attempted to make that clear.
I'm using ecamm'...
- 193
0
votes
0
answers
1k
views
How to fix a .mov file in hex editor from Photo Booth crash on OS X?
I was recording a ~4GB video using Photo Booth on OS X. The program terminated for some reason (unsure of whether it was computer sleep or something else).
I have a corrupted file of about 4GB in ...
- 11
58
votes
1
answer
50k
views
Why can't Quicktime play a movie file encoded by FFmpeg? [duplicate]
When I try to open a movie I just created with the command:
ffmpeg -pattern_type glob -i '*.JPG' -s 640x480 movie.mp4
I get an error from QuickTime:
The document “movie.mp4” could not be opened.
...
- 2,784
2
votes
1
answer
1k
views
.MOV file has audio synchronization errors in any editor but plays fine in VLC
I have a .mov file with H.264 1080p video and raw 16-bit PCM audio that I need to edit (remove a portion of).
The original file plays fine in Gnome's movie player and VLC but as soon as I open the ...
- 237
12
votes
2
answers
16k
views
What parameters should I be looking at to reduce the size of a .MOV file?
My Canon 60D creates .MOV files when recording video and I've found out that the .MOV container has an H264 video stream and a PCM audio stream.
I've used ffmpeg and GSpot to look at some of my ...
