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8 votes

How to extract MOOV atom/metadata from MP4 file?

Maybe I'm a bit late, but I'd use bento4 mp4dump, it's really easy to install on mac with brew brew install bento4 mp4dump 1.mp4 [ftyp] size=8+16 major_brand = iso5 minor_version = 200 ...
SkarXa's user avatar
  • 181
5 votes
Accepted

ffmpeg **doubled** my duration

By default, ffmpeg treats image sequence and raw video inputs as having a native rate of 25 fps unless told otherwise. So, the -r 50 duplicates each frame. Use ffmpeg -framerate 50 -i imageSeq-%06d....
Gyan's user avatar
  • 33.5k
5 votes
Accepted

Problem converting TS to MP4 container with ffmpeg

Update: The VLC TS is malformed. First run ffmpeg -i vlc-output.ts -c copy ffmpeg-output.ts and then ffmpeg -i ffmpeg-output.ts -c copy working.mp4 The main thing that looks off is the timebase ...
Gyan's user avatar
  • 33.5k
3 votes
Accepted

How does QuickTime Player know when do play a video in HiDPI/Retina/@2x mode?

The specific atom is in the trak metadata. When the com.apple.quicktime.pixeldensity metadata has the value 0x30, quicktime will play it at double the DPI. There is currently not very good support for ...
hughes's user avatar
  • 146
3 votes
Accepted

Output of FFmpeg has a "slow motion" part - what is it and how to avoid?

Your source is variable frame-rate with a peak rate of 120 and an average rate of close to 60. Editors tend to want constant frame rate streams. If you can interpret your whole transcoded file as 120 ...
Gyan's user avatar
  • 33.5k
2 votes
Accepted

best alternative to QuickTime .mov

Apple is dropping support for the player, so no new releases, but the format remains and can be decoded by recent versions of CC without needing Quicktime to be installed. See http://blogs.adobe.com/...
Gyan's user avatar
  • 33.5k
2 votes
Accepted

ffmpeg, audio tracks, and QuickTime player

Alain1A45 posted the correct answer as a comment, the following command creates an output file with working audio tracks for QuickTime player: ffmpeg -i in.mp4 -vcodec copy -tag:v hvc1 -acodec copy -...
janeden's user avatar
  • 141
1 vote
Accepted

How to convert ProRes/Quicktime MOV to instagram-friendly with ffmpeg so I can post it on IG

For a web-compatible encode, you will need the video stream to have a yuv420p pixel format. ProRes, as a editing codec, uses different pixel formats. Use ffmpeg -i in.mov -pix_fmt yuv420p -c:v libx264 ...
Gyan's user avatar
  • 33.5k
1 vote

How can I prevent YouTube from distorting the audio in my QuickTime video?

The problem was that different clips had different frame rates. My phone records a variable frame rate around 30 fps, the Zoom video had a fixed frame rate of 25 fps, the FB live video was variable ...
Dave Schweisguth's user avatar
1 vote

How to copy timecode value from a video to clipboard on a mac

This can be done in Apple's Motion (but not FCPX for some reason). To do so, create a new project and import your footage. You'll want the project's frame rate and starting timecode to match the ...
user1118321's user avatar
  • 2,156
1 vote

Which settings • preferences • preset to use in Adobe Premiere when exporting in QuickTime (.mov) format to avoid lines?

Looks like you have interlaced turned on. Try a different method of frame blending
Just A Lemon Stealing's user avatar
1 vote

MediaInfo Fourcc Values

FourCCs are Microsoft's ID tags for streams e.g. avc1 for H.264/AVC or mp4a for an AAC audio stream. The container doesn't really matter. If you want to change the FourCC, use ffmpeg like so ffmpeg -...
Gyan's user avatar
  • 33.5k
1 vote

Colors look different after export

I have this issue forever...found a solution thanks to this website https://isaac-molina.com/downloads/ download his luts aplly the correct lut to an adjustment layer placed on top of you project (in ...
Algoet Stijn's user avatar
1 vote

Colors look different after export

You may need to perform a “trim pass” to export to Rec709 colour space. See: https://images.apple.com/final-cut-pro/docs/Wide_Color_Gamut.pdf Matching colors in Rec. 2020 and Rec. 709 masters When ...
SaltySub2's user avatar
  • 151

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