Mixing frame-rates with a special look at Optical Flow
Вставка
- Опубліковано 17 жов 2024
- Premiere Pro has three options for Time Interpolation when you're mixing frames in a Sequence including Optical Flow. The results can be quite amazing but you have to keep an eye on any artifacts when using Optical Flow.
In addition, you can now set Optical Flow as an export option which will apply to any clips that don't match the Sequence.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
QUESTIONS?
► videorevealed....
Visit NVIDIA RTX Studio
► www.nvidia.com...
Check out BELECO photo backgrounds
► www.amazon.com...
Artlist Music
bit.ly/vidreva...
Artgrid Stock Video
bit.ly/vidreva...
Motion Array
bit.ly/vidrevm...
FXhome
bit.ly/vidrfev...
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
THANKS!
😃 To all the wonderful people who have supported VideoRevealed 😃
Even though I discovered your channel in the last year, I love how I am still discovering some of your older content and learning. I had no idea about the optical flow and exactly what I was looking for. I was downloading software and looking for something that was right under my nose. Thank you Colin!
Thanks. Yes, old tutorials are still quite useful.
You just saved my life, again, after days of wondering what on earth was going on with the artifacts. I had turned on Optical Flow due to a different tutorial on the Adobe site that said to turn it on for best results. LOL. I turned it off and everything worked great again. Thank you sir. I am going to watch ALL of your PP and AE tutorials this week--you make it all make sense.
Thanks Chris, yes Optical Flow should only be used in certain circumstances.
Greetings Colin! Another great video! I have a tech question for you. Hope it's ok if I ask on here. When I transfer screen capture video from my S8+ (Using Mobizen) to my computer, it changes the frame rate. I record at 30fps, but when I view the properties on my computer, the frame rate has changed to some random number. And when I import it into PP, the audio does not sync with the video, and it's always a different frame rate. It's never the same. Any help would be greatly appreciated!
Although you can set the frame rate on your S8+, the actual frame rate is "variable". I have an S8 and when I view the file info I get:
Frame rate mode : Variable
Frame rate : 29.787 FPS
Minimum frame rate : 9.922 FPS
Maximum frame rate : 32.177 FPS
Premiere Pro may not play variable frame rate video very well, sometimes it does, sometimes it doesn't and Adobe is working on an update. You can try to convert the video to another format before importing it into Premiere Pro. GoPro Cineform or H.264 would be good choices.
Have you tried moving the video to your computer using other methods? DropBox Camera Uploads works perfect with no file change. Also, connecting your phone via USB will do the same.
Lastly, I suggest installing MediaInfo. It's a free program that will tell you everything you need to know about the format, compression, frame rate, etc. of your media. Download it here:
mediaarea.net/en/MediaInfo
hi Collin.
if i have 240Fps file and wanna make a slow motion clip. can i just use Speed and Duration or do i have to do it in another way? and if i use a 50p sequence how much would i need to set the speed to without getting a lag.
thank you.
Honestly I don't know the math without trying it myself. I would create a sequence based on the output you want in terms of FPS, and drop in the clip and try various speed changes.
Trying to determine if Interpreting footage is a redundant feature if changing the speed uses the same tech? In other words, when you create slow-motion by reducing the speed and you use the appropriate math for doing so, is it doing the same thing as interpreting footage?
Or, is changing the speed always using frame sampling and thus you get, technically, a better image from using interpret footage?
In other words, outside of preferred workflow, is there a technical difference between changing speed using interpret footage vs using the speed/duration option? I feel like "back in the day" of conforming footage vs changing the speed percentage in FCP, the two methods affected the image differently. Maybe that has been taken care of?
Said most simply by another commenter on another thread, "is there any visible benefit to using the interpret footage method versus the speed/duration? or is it just a time-saving method?"
Thanks!
The processing engine and quality are identical.
What does make a difference is when you shoot 60 fps, interpret that to 30 fps, then drop that in a 30 fps Timeline. The results are excellent quality slow motion. If you just drop the 60 fps footage in, then you won't get the same speed.
Thanks. So you're saying, in your example, that if you take that 60fps clip and drop it into a 30fps timeline and THEN use Speed/Duration option to slow to 50%, you are getting the exact same results as if you had Interpreted the footage to get the same speed? With this process, does Premiere intelligently know not to use frame sampling because the frames exist in the 60fps footage?
How did you add a time marker to each frame?
Add the Timecode effect with these settings:
i.imgur.com/SPxdMsq.png
Thank you very much
Hello, first of all thank you for the video, solid and informative.
I got a question, would it be possible to multiply the framerate with optical flow? 23,976 to 47,952? I play a lot with the velocity for my client work and it would be great to be able to slow down a 23,976 clip while maintaining smooth slowmotion. I’m using BCC Optical Flow, u can set up the velocity in % and put it to 50% for example. Im trying to convert 23,976 into a higher framerate in order to achieve smooth slow motion with a velocity ramp. What would be the way to calculate the best possible framerate for that? 50/100 slow down optical flow and 47,952 framerate or 66/100 slow down and 32.12784 framerate? I also had the idea to split it In 3 and take 33/100 velocity of optical flow. What would be the best calculation in your opinion? I wanna find the perfect solution, to push the absolute limit of an 23,976 clip in terms of slowmotion and additional frames to increase the room and to have more freedom while speed ramping the velocity curves. Thank you for your answer already!
You're not going to get predictable results using Premiere Pro's optical flow. For this type of work I'd suggest Twixtor.
revisionfx.com/products/twixtor/fusion/
Hi, I have a question to make sure I have a clear understanding of using different frame rates. I’m very new and wasn’t keeping my frame rates consistent. I’m right in the middle of a project. Some at 60fps and some clips at 30fps. I’m now keeping everything at 30fps when I talking in the clip. I’m using higher frame rates if I want to use slow motion with no talking. Can I still use all my clips with the different flavors frame rates when I edit my clips in Pr to complete this project. I’m going to use a 30fps timeline at 1080p. I guess I would setup my sequence at 1080p at 30fps. Thanks for your help!
Yes, setup your Sequence as 30 fps and drop in all the other media regardless of frame rate.
If you're interested in converting 60 fps to 30 fps for slow motion, this is a good technique.
i.imgur.com/FwhomIo.png
VideoRevealed, I wanted to thank you for helping me with my questions. Very helpful and you always reply! 👍
how not show my time interpolation in prm pro cc 2015
There are several versions of Premiere Pro CC 2015, make sure you have 2015.4.
Hey I got a question about frame rates. I'm shooting with a Gopro at 60fps and a dslr at 24. When I finish editing and export it at 24fps, will the Gopro video shot at 60fps look weird? Wanted to ask before editing with premiere
What exactly do you mean by "weird"? If you mean slower or faster than expected, then probably not but you have to check.
Optical Flow is great but what if we have 1 part of the sequence that is optical flow and the rest of the clips are Frame Blending when you export everything in this area 7:15 it asks you which interpolation. in which case you only get to choose 1 option. Will it detect the Optical Flow parts of the sequence or it will just export the entire sequence as Frame Blending?
Any clips changed from the default Frame Sampling will be treated as such. I just did a test with duplicate clips set to Frame Sampling and Optical Flow. I just used the default export and the Optical Flow was applied correctly to the second clip only.
@@VideoRevealed Thanks that's great to know
Hi, I'm a wedding Videographer from Malaysia. I'm using cs6 and most of my clips shooted at 60fps and some 30fps and also some 50fps. . What will b your best advice on which sequence setup to use for the editing. Do I need to choose DSLR 24fps 1080 and dump in all the clips and modify it to 24fps?
I suggest you create a Sequence that is set to the frame rate you want to export then drop all the other clips into the timeline.
help, i dont have time interpolation option in the right-click menu and neither in speed/duration tab. please help me since there's no answer in google !
+IDUP SWK (nash) - You need to upgrade to the latest version of Premiere Pro.
VideoRevealed alright, thank you sir !
Hi Colin, is there any option/effect on premiere to display numbers on each frame like your exercise media?
+Sunday Tubes - Look for the "Timecode" effect in the Effects panel.
+VideoRevealed Wow.. that was fast.. and correct! Many Thanks!!
all my clips are 30fps, from BMCC, how can i get best result using optical flow?
what are sequence settings you recommend?
Sorry my English is not strong
The success of Optical Flow has more to do with what is happening within the frame and not the Sequence or clip frame rate.
Optical Flow is trying to distinguish the direction of where pixels are moving to and from there it makes calculations to try to create new frames. Unfortunately, as you see in some of the examples I showed, Optical Flow can get that wrong and the results are distorted and smeared. There is nothing you can do to fix this, it's just a clip that Optical Flow cannot work with.
If you were editing together a movie trailer, and all your main, longer (story) shots were filmed in 24fps, and your quick glimpse, rapid fire shots were ikn 30fps...would you worry about doing this to the 30fps footage since I'm doing it on a 24fps timeline? Or since the duration of those clips will only last a few seconds, would you let it slide?
My choice is always to use Sequence settings that reflect the export format and let Premiere Pro take care of mixing frames. Some editors are little more picky and covert all clips to a single format using something like Twixtor.
VideoRevealed thank you so much for your reply and advice
Hi there! I have a question. I shot video at 60fps but I don't like it at that so I want it to be at 24fps to give it a better look. Am I able to convert it to 24fps?
This is another question if it's possible. Now that my video is in 24fps I would like part of the video to be slow motion. As you know slow motion looks best in 60fps. So is there a way to get slow motion from the 60fps and not the 24fps but keeping the rest of the video in 24fps? Thank you,
You can modify the clip by Right-clicking and choosing Modify> Interpret Footage. To change the speed of part of a clip use the Time Remapping keyframes or cut the video at that part and change the speed.
I have no hard and fast rules on working with higher frame rates but I made a note to create a tutorial for the future.
Oh ok thank you very much
In the frame rate settings, when should we choose 24 or 23.97? or between 30 and 29.97? Thank U.
Set it to what you're going to export.
Colin, your videos are very informative and to the point. Thank you.
+Ravi shankar - My pleasure and glad you liked it.
Is Ravi Shankar your real name? That's a cool name for sure because I grew up in the 70's so I know who that famous sitar player is.
+VideoRevealed - Yes it is. I get that a lot.
Yeah, Ravi shankar was a legend and now his daughter plays.
Hi Colin, Can you please help. I record in 50 fps , shutter 125 , then slow down 50%, export to 24 fps and looks like the footage is loosing 2-3 frames in each video clip... Optical flow does not work.
Correct, Optical Flow will not work for that, neither will all the other interpolation methods. I think the what you want is to shoot at higher frame rates like 60 fps or 120 fps and change it in the Project bin: Right-click Modify> Interpolate Footage.
@@VideoRevealed So, does it mean that video of my camera which was recorded at 50fps is losing over 25 frames ? Because when I slow down a bit and export to 24fps the video is not smooth.
Question, i have footage that I've shot at 60fps but when I import into Premier it brings it in as 29.97,why and is there a fix? I used a Panasonic AG-HPX 170 with P2 Cards it records MXF files/AVC-Intra100
You can change the frame rate by Right-clicking on the clip(s) and choose Modify> Interpret Footage.
@@VideoRevealed But shouldn't premiere bring in the footage properly and then you can decide if you want to change up the frame rate?
Something in the file tells Premiere Pro the frame rate is 29.97. I have no idea how to change that.
@@VideoRevealed Thank you.
Thank you, I love your videos. Learnt a lot, but... What if you RATE STRETCH it? What is the best render setting when you speed ramp something so it looks smoother?
There is never one best setting. It always depends on the footage and how it behaves with the different interpolation methods. You just have to try each one and see. And like always, if you want the best speed changes, use Twixtor.
I recorded an event at 60p thinking everything will be slowed down in a 24p timeline, but I realized not everything needed slow motion. So I left some footage at regular speed, but the final video looks stutting. I know once you drop 60 p video on a 24p timeline it drops frames. Will optical flow compensate for those missing frames to look smoother? I’m also using Premiere Pro 2019. Thanks.
For slow motion footage, Right-click on the clip in the Project bin and choose Modify> Interpret Footage. Change the frame rate to the same as the Timeline and now drop it in and it will look amazing.
Thank you very much! I've been getting frustrated working with 300fps render footage only to find that the 60fps export jitters when any motion is present. Frame sampling had been selected by default, but the result from frame blending is so much more smooth with my footage, I love it.
That's fantastic.
whats GPU accelerator ?
+Bikalap Basnet - GPU acceleration is provided by the Mercury Playback Engine which is just part of Premiere Pro and Media Encoder. If you have a graphics card with 1GB of video RAM, then it will be used for any effect that is GPU accelerated. I have a new tutorial coming up about that.
+VideoRevealed that's good . Luckily I have a MacBook Pro of 16 GB RAM memory and extra graphics card
one question ,when i use optical flow and before i render in the timeline, results my videos get many flashes black and white why? my video get bad by the way i use a computer corei3 , 6 ram ,card video gt force nvidia 210- 1GB
+TESTIGO EN VIDEO - It may have to do with your computer being a little under-powered and you really have to render it to see the results so don't apply it until you're ready to actually work with it.
+VideoRevealed I rendered it but Idont know what is the problem optical flow in my videos :(
Try turning off GPU acceleration if it's already on in the File menu> Project Settings> General. Optical Flow will render differently when using Software Rendering. If that doesn't work, it might be the type of video you're using. Try Right-clicking on the video and rendering a new version using Cineform.
it doesnt work :( I dont know what is happening optical flow :(
How do you know it's not working? Are you using it to change frame rates or speed changes?
Have you tried exporting a test file because it may not work on the Timeline but okay when exported.
Hi!
What do you think about optical flow?
Is It most smoth than others?
Twixtor is still the best out there. But there are still times when it works fine in Premiere Pro: ua-cam.com/video/Pkla0IPt8ck/v-deo.html
That was my concern always and finally I got a better idea how is this issue of the frame rate. Now, what could be recommendable? To shoot and edit (and set the sequence) in one unique frame rate to avoid these conversions? And maybe AT THE END we can export with different frame rate just to switch from NTSC to PAL or viceversa, for example? Thanks, Colin. Amazing video. All a reveal!
Yes, it's always best to shoot at the same frame rate you're going to edit with. Different frame rates should be saved for visual effects like high speed to slow motion.
I have one query, sir. Suppose my all footages are shooted in 25 fps and one footage is in 50 fps (want to make slow motion of this footage), then what should be the fps setting of my sequence in premier / how to mix 25 and 50 fps footage in a single timeline with optical flow of that slow-motion footage (that video with 50 fps) / in which format (fps setting) I should export my complete video ? Please help! Thank You.
Keep the Sequence at 25 fps.
Modify the 50 fps footage to 25 fps.
Drop it into the Timeline and it will playback as slow motion with no need for Optical Flow or anything!
Here's the steps:
i.imgur.com/FwhomIo.png
VideoRevealed | Ya..I got it . Thank you sir
Really clear and useful.
I'd like to know how I can add extra frames to a photo burst.
E.g. I've got a photo burst but it isn't as smooth as a video when animated. So can I use optical flow to create the extra frames?
No, that wouldn't work well in Premiere Pro. I'd suggest using Twixtor.
revisionfx.com/products/twixtor/
can i add time interpolation in older version of premiere pro cs 6 with out upgrading it or can you tell me the way by which different frame rates clips can playback in time line smoothly without jerking
Those features are not available in CS6.
Hello and thanks for the valuable information .. Currently I'm working on a project with different frame rate video (60fps , 120fps) my question is : in which frame rate should i work in my general sequence that contain all the videos?
I would suggest working in your delivery format; so if you're exporting to 29.97, then that's what I would choose.
How can I do if I have to create some slowmotion (I have 60fps clips) and in the same video I have to insert two timelaps shot at 30 fps? Thanks!!! :)
Right-click on the 60fps clip and choose Modify> Interpret Footage. Change the frame rate to 30fps and now you'll have smooth slow motion footage. You have to do this before the clip is in the Timeline.
VideoRevealed
In this case I have to know in advance what scenes I need shoot at 60fps, and I can't shoot all my clips at 60 fps, Is this the big limit?
Not really, you can just drop in the 60fps when you want real time motion, then switch to 30fps when you want slow motion.
You can have a single 60fps clip in the Project, and one can be set to 60 and another to 30, heck, you can set as many frame rates as you want. When each one is placed into the Timeline, they will behave differently. So set to 60, drop it in, set to 30 drop it in. Just shoot 60fps on everything and make your decisions later. Make sense?
thank you, great explanation
my video output is 1080 50i and all my clips is from 3ds max and rendered as progressive as 1080p for time rendering, any camera movement in any clip I get flickering, I try to solve this problem with flicker remove in field option or frame blending with time interpolation but can't get smooth motion
with new optical flow option I select flicker remove in field option + optical flow in time interpolation and get very smooth motion
is there another way to convert 1080p to 1080i to get smooth motion before I edit in AME
+Seco Seco - What you've described are the only ways I know to convert to interlaced.
hello sir ... i cant find optical flow option in my premier pro cc 2015... just right click on clip but there is no option of time interpolation or optical flow.. thanks
How did you install Premiere Pro?
Great news, if you have CC 2015 then you can update to CC 2018!
Hello sir...I am your subscriber...From India...I am poor in english...I little bit confused...In time line no need to set optical flow.. Only set exporting time optical flow set it..Sir
Second doubt sir...If I use 25p 50p clips for timeline setting sequence set it 50p...It won't work optical flow sir
Optical Flow works with any media and any Timeline and any export. The results depend on the video in the clip as I show in this tutorial, it works sometimes and not other times.
Hey, what's up?
I'm working on a youtube music video right now which has a lot of clips with different frame rates (24, 25 & 30). I've already edited a huge part of the project but completely forgot about the fps.
I assume rendering it at 24fps will cause the video audio timing to be off (?).
Do you know a solution to my problem?
Thanks.
The timing will be completely in sync and whatever you see in the Program monitor, will be the same as the output. My tutorials are full of different video clips with different frame rates. Most users are absolutely fine with how Premiere Pro treats different frame rates.
Now some users will process the clips with something like Twixtor to consolidate all the different frame rates to one. Twixtor is a a third-party plug-in from RE:Vision Effects and you can find more info here: revisionfx.com/products/twixtor/
VideoRevealed
Thanks for the reply and for the link!
VideoRevealed I have a quick question in relation to this. Just in general really. Is it better to export a sequence of 25fps clips and 60fps clips as 25fps or 60fps? Thanks in advance. I guess I was silly recording some footage in GoPro and other bits elsewhere.
Thanks for the tutorial !! It really helps me when i shoot with 60fps and 24fps at the other DSLR cam..
+Bimo Pradana - Yes it will! Thanks for the support.
I would love to know your recommendations for a video card that Premiere likes on a MAC..not the garbage can Macpro but the older ones. There seems to be some acknowledgement that some cards are better than others for certain OS version and mother boards but I am looking for the best value for performance. Some cards, while high in cuda cores , will cause some abberations on the screen sometimes...certainly on some MacPros on older systems.
First, the screen aberrations are caused by drivers, not hardware. Apple had some major issues with GPU drivers for several releases.
Next, your choices on Mac are extremely limited compared to PC so the first place to start is to find a list of compatible cards that will even work on an older MacPro. I did some searching and the site below is the best I can find. I could not find much about compatibility on NVIDIA's site so it seems everything is PC based although there are some Mac choices but I couldn't find anything current. Good luck and think about moving to the "Dark Side", the hardware is so much faster and cheaper.
www.macvidcards.com/i-want-the-best-graphics-card-for-my-mac-pro-where-do-i-start.html
Ohh I am no Apple cool aid guy... I'd love to build my own 12 core PC machine with a great video card. Frankly I will likely have to go that route now that 4K is fast becoming more accepted.... As for weird video aberrations, Apple blames Adobe who blames the card company who blames Apple etc etc... I have also found that although my card works well it can be real problematic once I switch to CUDA cores.... vs CL ... that's where I've seen issues with PP. Thanks for the link and keep up good posts. Glad to see someone my age still has some cred on UA-cam given the youth centric society we are in. There are alot of great editors over the age of 45... or older I might say :)
Us "old(er) farts still value craft.
Older for sure but not old... beside the recent movie Enders Game the DP was Don McAlpine who was 79 at the time. Of course it was a $110 Million film so they put the responsibility in good hands... As for the vid cards funnily enough I had been seeking out advice about cards for eons but it took you a mere minute to find me a great site. Craft is one thing but resourcefulness cannot be taught. Thanks for the leads but I do believe you are right.. PC is a better choice for value performance.
sir in which adobe version i can use this feature optical flow.
i have adobe premier pro cc v9.0 but in this version this feature is not available. i have to upgrade in which version
You already have Creative Cloud so just update to the newest version using the Creative Cloud Desktop application.
sir thank u so much for the reply.
i had seen this whole video but how to do slow motion video using optical flow which steps i have to do in
premiere pro, in this video that steps are missing.
You either use Optical Flow or the speed ramp.
yes sir thank you.
you made it all clear for me thanks for this awesome tutorial You got a new subscribe, keep it up
Okay, I sure will.
You are great at explaining all of this. Thanks!
Thanks for your support.
That was what I was looking! Perfect explaination! Thank you so much! BTW, how is this method compared to twixtor (Re:Vision's plugin for AE and Premiere) ? I don't like the workflow of Twixtor (for frame rate conversion) but it has many settings you can play with!
The Optical Flow algorithm in Twixtor is the gold standard and nothing touches it.
Yea, and it renders way faster than premiere's optical flow! Today I had some test and the speed is horrible. But I was testing with h.264 files it can be because of that however as I am not a pro I shoot mostly h.264 and edit in premiere pro. Looks like I have to get used to Twixtor workflow (A bit complicated compared to premiere's optical flow) but will try if it is better at least with prores files! Thanks for the help! I suscribed and will watch your previous videos!
Thanks for subscribing. Twixtor *is* very complex but that's why it works so well. I really hope more Optical Flow solutions emerge and it would be great if they used the GPU to its full extent. Fingers crossed.
When you conform the frame rate in the media exporter it works as well as in the program but when it cuts between shots you get a couple frames of craziness. Is there any setting to tell Adobe Premiere not to mix between shots?
No, it's an all or nothing setting.
So I'd have to pre-render and export ever clip first or render the whole thing and cut two frames out per shot and re render again.
Both Premiere Pro and Media Encoder should export with the correct settings and if you're seeing something odd, then I don't know why unless I look at your example. I have had no issues.
Just to be clear, Optical Flow is a total crap shoot, you're not using that, are you?
The shots weren't set within the project, just on export with optical flow. It worked just fine over all. It's just between shots it pops up. It's being used for a series of shots filmed on a smartphone at 30fps when project is 25fps.
What you're experiencing with Optical Flow having "spasms" between cuts is expected because it does not know what is and isn't a cut. It's trying to blend together the pixels and vectors and when it cuts, that's what it's trying to do.
Great video as always!
Thanks!
It sounds like for broadcast and film
You should rerender any footage that is different from your timelines frame rate with 3:2 pull down...
But for other cases optical flow or frame blending
3:2 pulldown is automatic in the Premiere Pro Timeline so there is no need to render.
Colin, I am trying to work with Skype interview footage, and change the frame rate to one over all 24 fps. ...Some clips range from 10, 15 fps and 24 fps. I need to change the frame rate of the 10 & 15 fps, to 24. How do I do this? Do I need to create a project w/ 24fps first and drop it in (will it change?). I am obviously new to all this. Please if you can walk me through this... Thank you. Amy
Yep, that's what I would do. Create a Sequence at 24 fps and drop in the clip. Export it out at 24 fps and see what it looks like (don't just trust the preview playback).
Thanks Colin. When I drop the 15 fps clip into the 24 fps sequence, it will change the frame rate then to 24? Is that right?
I did it, sequence is set to 24. When I look at the clip properties, it still says 15 fps. Do I need to do anything else there or will it adjust?
Thank you!
(when I export it I mean)
You pick the export settings you want, they can be the same or different from the actual Sequence. So, in your case, pick 24 fps in the export settings.
This would work if the clip is slowed down or speeded up wouldn't it? Thanks for the video.
+john erwin - Yes, but you may find that Optical Flow will still cause errors if the foreground and background are too similar.
Thank you for the tutorial! My most footages are 1440x1080, 25 fps so these are my sequence settings but one clip in the timeline is 1920x1080, 29.97 fps. What if I interpret this footage - reduce its fps to 25, scale to frame size and shorten the clip to its original duration with Rate Stretch Tool?
Just drop it in the Timeline and scale it down to fit. You do not have to change the framerate as Premiere Pro will take care of that.
Thank you for your quick respond!
hi, i think this was a little over my head, but im just trying to make a video the starts 24fps, then cuts to 60fps. there has to be an easy way that im missing, but i have been trying to figure it out all day. all source video is 60fps.
A Premiere Pro Sequence, and exported video, both have a fixed frame rate. You cannot change it on the fly. The clips can have different frame rates on the Timeline but they'll playback at the Sequence settings.
So you can't have a timeline which contains multiple frame rates that all play at real time without changing them to the uniform frame rate of the timeline? Why is that?
Why can't I have a 24p movie and then all of a sudden an action sequence that's 60p in that movie?
There isn't an editing system in the world with variable frame rate playback.
VideoRevealed why is it then, that I can have a 60p timeline and play one or two of the clips in 30p slowmo while the others remain 60p? I'm just trying to wrap my head around this :/
If you Right-click on a clip in the Project panel and choose Modify> Interpret Footage. You can independently change the frame rate of any clip before it is inserted into the Timeline.
Try changing a 60 fps flip to 30 fps and put two versions in a 30 fps Timeline. That should tell you all you want to know. You need to Duplicate versions in 2018 CC
great tutorials! what about adding a 29.97fps or 30fps to a 24p timeline, can i still use optical flow?
+Misael David - Yes, Optical Flow can be used any time there is a frame-rate mismatch...and thanks for the support.
+VideoRevealed awesome! I sure will support! you're vidoes are so helpful!
i have pr pro cc2015 and do not have/ can not find optical flow anywhere
There are about 5 version of 2015, so make sure you are using 2015.4 and you can do that by updating with Creative Cloud Desktop.
Thank you very much!! It was a very good explanation!
You're welcome.
How exactly is a frame defined?
It depends on how the video was recorded. If it's your typical H.264 format, then the frame can either be a full frame (the beginning of the GOP) or a fragment of a frame between the full frames. There are many compression formats so the answer depends on many factors.
There is another way to deal with different speeds, if you have 24 footage on a 25 timeline, it works always perfect. Just put 104% speed on the 24 clip, result is no duplicates frames, no stutter. Frame rates with larger differences with the timeline, can also be calculated in speed compensation, but can be noticeable if the speed of the clip is made too high. 24 to 25 works perfect though.
I've have confirmed with Adobe engineers that you do not have to do that. Just add the clip the the Timeline and all the correct operations are done automatically.
@@VideoRevealed Thanks ! Yes, that is right for the latest versions of Premiere. My trick worked while working in an older version.
Another excellent video,
Thanks.
Hello and thank you for your tuturial i just mixed 24fps and 30fps in a Magix Video deluxe timeline and exported it in 24fps and it played well without laging or jitteringthank you again regards from GermanyGünter
Thanks for watching and I'm happy your video worked out well.
This took me months to come across this problem!! i knew it was a time interpolation but damn!!! Thank you for providing this! So if I come across this problem the screen or glitch is known as an artifact?
Yes, it's an artifact.
How would I workaround my footage for cleaner, crisper exporting and rendering??
If the issues are in the footage, then there isn't much you can do to fix it. If you're specifically talking about artifacts created when choosing Optical Flow, you can try using Twixtor. It's much better but does require a lot of tweaking and it can take a long time to render.
revisionfx.com/products/twixtor/
Do I have to use a 3rd party app? It only applies to my edit after I export the finished product, most the time my timeline is yellow with a couple clips green but usually I only catch the artifacts after I render
As I mentioned in the video at ua-cam.com/video/dOazsNVxYFI/v-deo.htmlm6s, you can only see the results of Optical Flow if you render or export. When you apply it and playback, you're seeing Frame Sampling only.
The colors on the Timeline are estimations for the most part; they are meant as very loose guidelines and they have nothing to do with the results of Optical Flow.
You have two choices:
Switch to Frame Sampling or Blending.
Use Trixtor.
how to remove acne , face clean on adobe premiere pro ?? Please help! thnx
+Haytham Monir - You really need a specific tool for this and Digital Anarchy's Beauty Box is incredible. If you try to just mask out an area and blur, it won't look very good. Beauty Box is made to understand how to make skin look smooth and natural. Check it out here: digitalanarchy.com/beautyVID/main.html
that was very helpful. thank you!
You're welcome.
Picking a single choice is what you're expected to do. It's impossible to process more than one option. It's like picking colour *or* black and white, you have to pick one.
Thanks
You're welcome.
Thanks.. You are a life saver
You're welcome.
Thank you!
You're welcome.
thank you ! really cool
+Bernard B - Glad you liked it.
thank you for your video
+ahmed metwally - You're welcome.
Thank you so much
You're welcome.
Thank You
You're welcome.
HOW do i best dm you?
videorevealed.com/contact/
Thank you!
You're welcome.