So lets say I have a DVD that is 30 fps, and it was originally a 24 fps source. I can see, very consistently: two copies of one frame, a frame that is a mix of 2, and then three copies of the next frame.
My goal is to output a 24 fps video that has just the 2/3 pattern, skipping the mix frame.
How can this be done?
Working with a 30 fps disk that came from 24 fps source
Re: Working with a 30 fps disk that came from 24 fps source
Turn on the detelecine filter.
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JohnAStebbins
- HandBrake Team
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Re: Working with a 30 fps disk that came from 24 fps source
A HandBrake scan log of the disc would tell us *a lot* more. Your description fits a couple of possibilities. The detelecine filter may do the trick, or it may just hork things up worse.keybounce wrote: ↑Mon May 01, 2017 3:03 am So lets say I have a DVD that is 30 fps, and it was originally a 24 fps source. I can see, very consistently: two copies of one frame, a frame that is a mix of 2, and then three copies of the next frame.
My goal is to output a 24 fps video that has just the 2/3 pattern, skipping the mix frame.
How can this be done?
Re: Working with a 30 fps disk that came from 24 fps source
Here's the activity window
https://gist.github.com/keybounce/3ed20 ... a786aa3978
Where can I find the actual log file, if it contains more info?
https://gist.github.com/keybounce/3ed20 ... a786aa3978
Where can I find the actual log file, if it contains more info?
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JohnAStebbins
- HandBrake Team
- Posts: 5726
- Joined: Sat Feb 09, 2008 7:21 pm
Re: Working with a 30 fps disk that came from 24 fps source
Thanks. I think the detelecine filter is the right advice here.
Most of the time, 24fps content is signalled with special flags in the video that allows HandBrake to convert from the native 29.97 DVD framerate back to 24fps. So the detelecine filter is not needed in these cases and can actually cause jitter issues due to misdetecting a telecine pattern in non-telecined content. But these flags are not present in your video, so the detelecine filter is necessary to find the repeating pattern and reverse the process.
Most of the time, 24fps content is signalled with special flags in the video that allows HandBrake to convert from the native 29.97 DVD framerate back to 24fps. So the detelecine filter is not needed in these cases and can actually cause jitter issues due to misdetecting a telecine pattern in non-telecined content. But these flags are not present in your video, so the detelecine filter is necessary to find the repeating pattern and reverse the process.
Re: Working with a 30 fps disk that came from 24 fps source
Great. So two questions:
1. What settings do I need? Do I need to turn on telecine, and turn the frame rate from 30 to 24? Do I want the 23.9-something-something instead of 24? What else?
2. Grumble grumble grumble. The disk has 4 episodes, and "play all" plays all 4. But title 1 only found 2 episodes (it's 1:28, each episode is 0:44). Is there anything in that log file that would indicate why / what would need to be done? For now I'm just ripping the 4 episodes into separate files. (If it makes a difference: episode 3 has a director's commentary audio; the others do not.)
Edit: 3: Grr, the forum does NOT send me an email automatically when a reply is made. How do I turn this on to automatically get emails when someone replies to me?
1. What settings do I need? Do I need to turn on telecine, and turn the frame rate from 30 to 24? Do I want the 23.9-something-something instead of 24? What else?
2. Grumble grumble grumble. The disk has 4 episodes, and "play all" plays all 4. But title 1 only found 2 episodes (it's 1:28, each episode is 0:44). Is there anything in that log file that would indicate why / what would need to be done? For now I'm just ripping the 4 episodes into separate files. (If it makes a difference: episode 3 has a director's commentary audio; the others do not.)
Edit: 3: Grr, the forum does NOT send me an email automatically when a reply is made. How do I turn this on to automatically get emails when someone replies to me?
Re: Working with a 30 fps disk that came from 24 fps source
1) Turn on detelecine. Leave the framerate as 30fps VFR.
2) The other episodes are in another title.
2) The other episodes are in another title.
Re: Working with a 30 fps disk that came from 24 fps source
Thank you.
(I'll be sure to forward that last response to Mario)
(I'll be sure to forward that last response to Mario)
Re: Working with a 30 fps disk that came from 24 fps source
So I don't need/want either Deinterlace: decomb, nor interlace detection?
Re: Working with a 30 fps disk that came from 24 fps source
you could turn on decomb to pick up anything that detelecine doesn't catch, but you shouldn't need it
Re: Working with a 30 fps disk that came from 24 fps source
So it's saving about 1/7th of the output (about 50 MB per 44 minute episode) with just detelecine. Output frames all look sharp, with no frame intermixing.
Even the CGI spaceship battle manages to keep the motion blur and remove the frame stutter.
With the output still claiming to be 29.97xxx. Not 23.9xx. I won't pretend to understand how that worked (if you eliminate frames, you reduce the fps, right?), but it does. Thank you.
Even the CGI spaceship battle manages to keep the motion blur and remove the frame stutter.
With the output still claiming to be 29.97xxx. Not 23.9xx. I won't pretend to understand how that worked (if you eliminate frames, you reduce the fps, right?), but it does. Thank you.
Re: Working with a 30 fps disk that came from 24 fps source
Post the encode log.
Re: Working with a 30 fps disk that came from 24 fps source
If that's different from what I posted in the log window, where do I find it?