7
votes
Is it possible to export a Video with transparent Background? (No Image Sequences!)
Production codecs with alpha channel support
Apple ProRes 4444 / Apple ProRes 4444 XQ
From the Manual:
Apple ProRes 4444 and Apple ProRes 4444 XQ are ideal for the exchange of motion graphics ...
- 2,314
7
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
...
- 171
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....
- 32.6k
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 ...
- 32.6k
4
votes
Accepted
Is it possible to export a Video with transparent Background? (No Image Sequences!)
File > Add to Render Queue > Output mode > Format 'Quicktime' / Channels 'RGB + Alpha'
See if that works for you!
- 116
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 ...
- 146
3
votes
Accepted
Are "mp2v" and "mpgv" valid MPEG-2 codec tags in an MOV?
MPEG-2 doesn't seem to be an officially sanctioned codec for the Quicktime container. The official specification has a section related to MPEG-1 in MOV but not MPEG-2. The US Library of Congress also ...
- 32.6k
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 ...
- 32.6k
3
votes
Is it possible to export a Video with transparent Background? (No Image Sequences!)
Yes, for the Quicktime output module, choose to output RGB + Alpha using PNG or Animation codec.
In Media Encoder, choose Depth as 32 Bit after selecting the same codecs as above.
- 32.6k
3
votes
How to extract MOOV atom/metadata from MP4 file?
You can also use qtfaststart -l fileName which outputs something more human readable like :
$ qtfaststart -l myFile.mp4
ftyp (32 bytes)
free (8 bytes)
mdat (283805466 bytes)
moov (3541465 bytes)
The ...
- 165
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/...
- 32.6k
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 ...
- 32.6k
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 ...
- 121
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 ...
- 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
1
vote
Accepted
how to decide the appropriate resolution when recording my screen for uploading online?
Recording full screen, if your hardware allows you to do it smoothly, is your best option. You can always crop or mask out unwanted areas later in editing. You won't have that freedom if you crop the ...
- 32.6k
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 ...
- 11
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 ...
- 151
1
vote
FFMpeg crop filter doesn't change orientation
What's happening here is two things:
1)your video is portrait but stored as a landscape matrix and ffmpeg is applying autorotate so that all players natively display it in what ffmpeg thinks is the ...
- 32.6k
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 -...
- 32.6k
1
vote
Quicktime rendering issue
it seems to me that you are trying to overwrite an existing file. Try to change the name from your file (Test 1.mov) to something different and that is not already used on your Exports folder.
Let me ...
1
vote
Missing video codec in Quicktime
I would try two solutions, obviously on backups of the files, not the originals. First there is the 'untrunc' tool which tries to copy over additional information from a working file into a broken ...
- 639
1
vote
Missing video codec in Quicktime
You can try to repair the file with ffmpeg, a free command-line tool, like so
ffmpeg -analyzeduration 1G -i input.mov -c copy -map 0 out.mov
- 32.6k
1
vote
Why is a screencast produced by Quicktime (.mov) is much smaller than the converted MP4 file?
I don't think it's the framerate. Maybe check with mediainfo to see more specific settings of each Codec. Apart from the bitrate, there are plenty of settings that can influence file size, even when ...
- 639
1
vote
Resolve Bad public atom found when using ffmpeg copy
This is kinda tricky. Apparently, the video track you're trying to copy consists of multiple video streams of possibly differing properties stitched together. ffmpeg's MOV muxer (the part that copies ...
- 32.6k
1
vote
Accepted
Losslessly converting Microsoft DV to Quicktime DV
I doubt Adobe Media Encoder is rewrapping the video stream.
To copy the data losslessly from a Type 1 to Type 2 DV-AVI or to MOV, use ffmpeg, a free command-line tool, like so
ffmpeg -i input.avi -c ...
- 32.6k
1
vote
After effects cc render time issues
I usually export as a ProRes Quicktime movie from After Effects directly, then convert my ProRes file to h264. I keep the ProRes as a master file, and compress the h264 as needed. Also sometimes ...
- 7,585
1
vote
FFMPEG prores_ks 4444 color shift
I believe the problem lies in how FFMPEG does the RGB->YUV conversion by default. This option specifies the use of the bt709 color space for the conversion, instead of the default of bt601. This ...
1
vote
FFMPEG not writing quicktime "COLR" atom
That is an experimental flag, so you will have to use
-movflags +write_colr -strict experimental
- 32.6k
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