3
votes
Accepted
Correct gamma for SMPTE ST-2084 EOTF
The short answer is: You don't pick a color space for your RAW material based on what kind of monitor you're using.
A color pipeline is a very complicated series of mathematical conversions, which is ...
- 4,444
3
votes
Accepted
Motion RAW Videos possible?
This camera can't shoot RAW for still, not talking about video. And according to the specifications this camera can shoot 640x480x30 which is not very much by contemporary measures.
For shooting RAW ...
- 318
2
votes
Accepted
Camera settings instead of RAW
It highly depends on your Bit-depth and scene and post-production. If you're trying to maximize for dynamic range and avoid clipping highlights for example, you should reduce contrast as much as ...
- 161
2
votes
Find raw footage based on second hand video?
In Premiere, you can align clips based on audio by putting the clips on separate tracks, selecting them both, right-clicking on one, and choosing, "Synchronize."
As far as "programs to compare edits ...
- 4,444
2
votes
Accepted
FFMPEG 4.0 skipping frames
Y4M has no timestamps, only framerate in its header. So, if your source has any variability in its framerate, you'll see a shift in apparent timestamp in the Y4M.
e.g.
n src y4m
0 0 ...
- 32.6k
1
vote
Accepted
What is this colour blocking/ banding i'm seeing and can it be corrected for?
This is most likely a compression issue from chroma subsampling and 8-bit log footage. Log footage does have very little contrast and saturation so that it does not clip. However, that means that your ...
- 161
1
vote
Accepted
use ffmpeg to convert interleaved raw yuv/pcm to compressed
Here's a method that should, in principle, work. It assumes VAVA interleaving and for somewhat efficient processing requires the packet sizes for both video and audio having a reasonably large ...
- 32.6k
1
vote
Archival storage for RAW video
If your system has external SAS, you can either buy an older LTO Tape Drive System, such as an LTO-5, or rent one. Or go for an LTO-6 or 7 drive.
Linear tape really is the best choice for a number ...
- 2,477
1
vote
Accepted
Frame rate mismatch when converting to raw video
Raw video is just that - a raw dump of video content payload - there is no packetization or metadata.
Output to Y4M for a format with metadata
ffmpeg -r 50 -i test.ts -pix_fmt yuv420p -vf "setpts=...
- 32.6k
1
vote
Accepted
ffmpeg. Converting through rawbitstream results to noise
Use
ffmpeg -i in.MOV -an -vcodec rawvideo -pix_fmt yuv420p rawbitstream.yuv
ffmpeg -s 640x480 -i rawbitstream.yuv -vf select="not(mod(n+1\,2))" -c:v rawvideo -vsync 0 -an even.yuv
ffmpeg -f ...
- 32.6k
1
vote
Is mp4 or avi format convertable to raw?
No, if you don't record in raw, you can't get back to it. That's why people go through the headaches of recording in RAW. RAW is the actual photosite exposure data and isn't actually a usable image ...
- 19.3k
1
vote
Accepted
video format for pre-demosaic'ed stream
Turns out the answer is yes. Such format is called CinemaDNG and is used for professional video production since 2009.
Here's the spec for the format: http://download.macromedia.com/pub/labs/...
- 121
Only top scored, non community-wiki answers of a minimum length are eligible