23
votes
Accepted
Combine MOV video files
I succeeded merging the files using FFmpeg's demuxing feature. For .mp4 conversion, I had to explicitly convert the audio stream to avoid this error:
Could not find tag for codec pcm_s16le in stream #...
- 1,350
12
votes
Accepted
Re-encode 4K video to H.265/HEVC with FFmpeg for playback in QuickTime
Some players rely on metadata to identify if the contents of the file can be used. QT belongs to this category. As confirmed in comments, assigning a codec tag of hvc1 allows playback in QT,
ffmpeg -...
- 37.1k
4
votes
Recovered video files won't play
The video files get corrupted when recovered with photorec (same thing with testdisk) so they won't play even tho the video stream is there. I had the same issue with accidentally deleted videos from ...
- 441
3
votes
Combine MOV video files
find *.MOV | sed 's:\ :\\\ :g'| sed 's/^/file /' > fl.txt; ffmpeg -f concat -i fl.txt -c copy output.mp4; rm fl.txt
- 131
2
votes
Windows 10 Pro/Enterprise bug when dealing with large MOV files
After many many hours and trying two dozen different fixes, I have solved this problem by removing two entries for MOV from the following registry locations:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\...
2
votes
How can I remove 14 of 16 audio channels from a MOV file using FFmpeg?
You can use the -map_channel option:
ffmpeg -i input.mov -map_channel 0.0.0 -map_channel 0.0.1 -c:v copy output.mov
Other channel manipulation options are available including the channelmap filter. ...
- 230k
2
votes
Why does QuickTime not play a video with CRF of 0, but is happy with 10?
QuickTime only supports H.264 with YUV 4:2:0 chroma subsampling, but using -crf 0 results in 4:4:4.
Any FFmpeg based player such as VLC or mpv will support these files.
- 60.6k
1
vote
A/V Controls button for Slow motion in QuickTime Player (10.5)?
Apple discarded a lot of the old "Pro" control & editing aspects when it updated Quicktime 7 to Quicktime 10 [there was no 8 or 9].
Your linked page at imyphone is actually using an old ...
- 50k
1
vote
Accepted
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?
We may use lutyuv filter, but it may be too complicated if your never used FFmpeg before.
Example for converting all gray values in the alpha channel to white:
ffmpeg -i angry.mov -vf alphaextract,...
- 2,601
1
vote
Accepted
ffmpeg MOOV Atom on a ProRes file?
Yes, it does. During the process, you should see the line below near the end of ffmpeg's logging.
Starting second pass: moving the moov atom to the beginning of the file
- 37.1k
1
vote
ffmpeg stuck in generating thumbnail of video
I just used an old version of ffmpeg (that is in the debian repository). Downloading a recent static build and using that one instead solved the stuck problem.
- 21
1
vote
Combine MOV video files
If you're looking for how to concatenate .mp4 files instead, see my other answer here: Stack Overflow: How to concatenate two MP4 files using FFmpeg?
To combine many .mov or .MOV files into one
......
- 2,138
1
vote
Batch export selected videos with QuickTime Player 7 using specific export settings?
Eureka! I found an Automator workflow online that actually works. I just had to modify it to take movie files as input instead of images. It uses the "Most Recent Settings" in QuickTime 7, so I just ...
- 2,117
1
vote
How can I determine which process or service is using COM Surrogate
COM surrogate is responsible for thumbnail generation, as magicandre1981 posted already.
And Raymond Chen [MSFT] notes: "In practice, if you get these types of crashes when browsing folders ...
- 12k
1
vote
Accepted
How can I determine which process or service is using COM Surrogate
Run Process Explorer and point the mouse over the dllhost.exe. Now you see a tooltip with the DLL loaded by dllhost.exe
Here it is the thumbnail creating dll. For you this maybe also shown, so ...
- 98.6k
1
vote
Quicktime Version 7.7.9 On Windows 10 64-bit
There aren't and won't be any newer versions of QuickTime because QuickTime for Windows is no longer supported. Apple urges all Windows users to uninstall QuickTime as it has severe security problems ...
- 1,495
Only top scored, non community-wiki answers of a minimum length are eligible