How to inverse telecine this?

I have some 30 fps video that has a pattern of five interlaced frames to a single progressive one. I suspect this is a conversion of some sort from 25 fps PAL to NTSC. What I'm trying to figure out is how to get this into a progressive 24 fps format. Any suggestions?

Brute force - is what I'd try, and a real rough stab in the dark here. What you've described looks weird. More like some Flash frame rate kinda web thing thats been converted somehow.
Copy the file - use CinemaTools on the copy to conform to 24.
It'll likely look like absolute cr@p given what you've described - but ...?
As starting point - hey ...

Similar Messages

Best tool for Inverse Telecining and deinterlacing ?

I have very limited experience in encoding videos before.
Recently I'm trying to transcode a DVD into H.264 with x264. All the VOB files are dumped already.
As for the video part, I've decided to do it this way :
mkfifo TEMP.y4m
x264 OPTIONS -o OUTPUT.mkv TEMP.y4m & mplayer -vo yuv4mpeg:file=TEMP.y4m OPTIONS INPUT.VOB
I believe this method to be clean and efficient.
The problem is: This VOB file is in NTSC format, and I'm pretty convinced that it's telecined, after reading this:
http://www.doom9.org/ivtc-tut.htm wrote:TELECINE is a process where the FILM first is slowed down to 23.976 frames/second. Then for every 4 frames, an extra frame is created from fields of adjacent frames. If a frame consists of two fields, top (t) and bottom (b) and the original sequence is 1t1b 2t2b 3t3b 4t4b, then the telecined sequence would be 1t1b 2t2b 2t3b 3t4b 4t4b (commonly called 2:3 pull down because of the alternating 2 field, 3 field progression). This also means that the frame rate increases to 29.97 frames/second.
I viewed the video frame by frame, and found out that there're 2 sequential interlaced frames out of every 5 in a non-static scene. These are 2t3b 3t4b frames I think.
mplayer comes with some video filters that might help: With "-vf pp=" the result isn't that satisfying, but "-vf pullup" do the job nicely, that is, I can almost see no interlacing at all with this command:
mplayer -vf pullup VTS_01_1.VOB -noconfig all
On the other hand, I also noticed that there're 2 sequential repeated frames out of every 5 in a non-static scene. The frame-rate is 29.970 fps. This is bad because repeating means inefficiency in terms of compression. The better result is using only one of these 2 repeated frames at a frame-rate of 23.976 fps, which means dropping 20% extra frames.
But I don't know how to achieve this.
I want to achieve this at the mplayer decoding stage, so that x264 is fed with a yuv4mpeg source stream with no interlacing or extra frames.
------------------------------------------------------------------------------------------+
I'm not familiar with mencoder's options, though it seems to be able to drop the extra frame with "-vf pullup,softskip -ofs 24000/1001", but I can't find a way to let mencoder output as yuv4mpeg. Also there is a reason why I tend to avoid using mencoder:
mencoder -ss 209 -endpos 20 -ovc copy -oac copy -o _short_.vob VTS_01_1.VOB
This is supposed to cut a 20-second short clip from the VOB using copy. But even task as this simple could be wrong...which is really disappoiting. Look at these 2 screen shots.
By using mencoder -ovc copy::
http://omploader.org/vMjE3Zw
The original (mplayer VTS_01_1.VOB)::
http://omploader.org/vMjE3aA
Maybe it's just my build of mencoder(compiled at home)... But with this I really can't say mencoder is to be trusted.
...Or, is it something wrong in my command?
-------------------------------------------------------------------------------------------+
By the way, for this specific DVD, I believe mplayer plus x264 together can achieve the best result; on the other hand, just as the title suggests, I'd like to find some decent tool to do IVTC and Deinterlacing. CLI preferred but good GUI apps are also welcome
Thanks in advance!
Last edited by lolilolicon (2009-07-25 03:31:59)

skottish wrote:You should be able to use the -vf pullup,softskip stuff still.
man mplayer wrote:Softskip
Only useful with MEncoder. Softskip moves the frame skipping (dropping) step of encoding from before the filter chain to some point during the filter chain. This allows filters which need to see all frames (inverse telecine, temporal denoising, etc.)
Actually, when I tried::
mplayer -vf pullup,softskip VTS_01_1.VOB -noconfig all
The result is the same as just using "-vf pullup". The extra frame can't be dropped by mplayer this way......
Too bad many "convenient" tools like h264enc all use mencoder. I don't know whether handbrake does too. Haven't tried it out.
Avisynth is a great tool but works only for windows. x264's built in deinterlaced mode does no good in my case. ffmpeg's filters are still too limited by far. What can I do? Is there anything that does nothing but good IVTC?
-------------------------------------------------------------------------------------+
Klepper wrote:It says to always use the softskip filter together with pullup
man mplayer wrote:Always follow pullup with the softskip filter when encoding to ensure that pullup is able to see each frame.
In my case, pullup seems to work better than filmdint: I've just tried the h264enc script which is almost totally a frontend to mencoder. Look at the mencoder filters it used:
mencoder VTS_01_1.VOB -o 01.avi -fps 30000/1001 -ofps 24000/1001 -vf filmdint=fast=0/io=30:24/dint_thres=256,softskip,harddup -oac pcm -ovc x264 -x264encopts <x264OPTIONS>
See, it also used filmdint as you suggust. The result is not too bad: removed the extra frame and plays at 24fps. But I can still notice interlacing occasionally. Maybe it's because the video isn't constant pattern "PPPII" but with some shifting (say, PPPIIPPPII...PPPIIPIIPPPIIPPPII, I found some pattern like this in the source VOB)
Man page says "io=<ifps>:<ofps>" must match "-fps/-ofps" ("-fps 30000/1001" and "-ofps 24000/1001" in my case.)
Since -ofps is an option ONLY for mencoder, but not for mplayer, filmdint can't make mplayer drop the extra frame like mencoder.
I played the VOB with "mplayer -vf filmdint=fast=0/io=30:24 VTS_01_1.VOB -noconfig all" and there're lots of "@@@@@@@@ Bottom-first field??? @@@@@@@@" spitted out in the console. I read about this in the man page but don't understand....
If the source is MPEG-2, [u]this must be the first filter to allow access to the field-flags set by the MPEG-2 decoder[/u]. Depending on the source MPEG, you may be fine ignoring this advice, as long as you do not see lots of "Bottom-first field" warnings.
I don't have any other filters in the command line, so... why?
The occasional interlacing is the same as the video encoded with h264enc. Also, it did not drop the extra frame anyway.
-------------------------------------------------------------------------------------+
Also I have a doubt:
In my first post, I wrote:
The original (mplayer VTS_01_1.VOB)::
http://omploader.org/vMjE3aA
But I think even this is not "original" -- not as good as the original video before it was telecined into NTSC format. I think it's mplayer not doing it good enough. The real original frame should have no blocking......
I've compared it to one fansub rip, the same frame looks better than in the image above, very little blocking, also the bass string isn't blurred like in the image above:
http://omploader.org/vMjE5aw
I don't know how they did it. And I actually want to do it better
Last edited by lolilolicon (2009-07-25 09:32:30)

DVDSP4 corrupting Inverse Telecine .m2v's on import? Rant: long post

hello everyone
my computer set up:
i am on DVDSP 4.03 (latest update) with all pro updates, have not upgraded to QT 7.1.1 and OS X (10.4.6).
my workflow:
most of the tape material i encode from comes from my MPX3000 hardware encoder and is then transfered via network to my mac for authoring.
my problem:
i transfer the compressed files over the network no problem, import them into DVDSP, no problem, i place them into the stream, and the file is corrupt. now, i use that term because the header information of the .m2v is all corrupt, as in the bit-rate is not what it's supposed to be, running time is off and believe it or not the first 20 or so minutes (as example, this varies from project) is in the middle of the stream, the end credits are in the beginning of the stream and so forth. amazingly, the audio is perfect.
at first i did the standard erase prefs, .PAR folders and even optimized my drives (since i have been a bit negligent to run techtool or disk warrior). still continued to have problems.
then i suspected the network, even though we have a gigabit network, i am in a fairly large facility and we are always transferring large files. so i directly connected to the mac from Spruce and made sure no other ethernet was connected, transeferred the .m2v's and same problem.
ok, i thought, maybe DVDSP became corrupt? i removed FCS from my mac, made sure ALL files related to it were also trashed and re-installed. imported the the .m2v, same problem.
ok, ok, i am going crazy, the ENCODED file is corrupt, so opened it up in spruce, file was exactly as it should be!!
then i thought, let me see in QT, VLC and MpegstreamClip...
QT = file had incorrect: bit-rate, duration and frame rate.
VLC = file had correct header info, but playback was half frame rate.
MpegSTreamClip = file had correct header infor, but once again, played and half frame rate.
then i thought: "what if i compile my project and then demux in Mpegstreamclip". compiled in Spruce, demuxed and imported into DVDSP, wayyyyy better, but still had problems! the running time was of, it added about 20 minutes of video (it duplicated some scenes).
i was starting to go crazy, then it hit me!
whenever i flagged for inverse telecine in CBR mode (i do not trust MPX3000 IT flag detection in VBR) the files were corrupt. so i did a test:
CBR with IT on
CBR with IT off
VBR with IT on
VBR with IT off
to my surprise, all files with IT off worked perfectly in DVDSP, QT, VLC and Mpegstreamclip!
my stomached dropped to the floor! i had 2 huge projects due with the features being a 24 fps D5 master, so IT had to be, that meant they had to be completely re-authored in Spruce!
unfortunately, a lot of shortcuts and files that have no problems in DVDSP had a hard time is Spruce.
once again, i LOVE DVDSP, but AGAIN, i lost some respect for her
by the way, i tried importing some menu files (audio and video) that were encoded in Compressor and some had trouble importing in Spruce while others no problems (even though the EXACT same settings were used).
in addition, so dummy 5.1 streams i created were not compatible with the 5.1 streams created from the acx5100 card. of course i checked my sample rate, bit-rate and channels, no good!
i just dont understand all of a sudden how this could happen, oh well, it gives me an excuse to ask for a 10k drive that i have been wanting for some time to be used as my root drive!
let's brainstorm guys, see whats going on?
anyway, thanks for any input
by the way, i will have updates as i upgrade, test and trash prefs and such. i am sure this works! (i still have faith in you DVDSP!)
Mikey M.

Hey Max
yeah that method does sound tedious!
as far as the encode, when i use the hardware encoder, if i am coming from an SD source, then i try to get the HIGHEST quality master/transfer i can get.
if i am capturing from a HD master, then there is not much i can do (since i dont have a pre-processor) except make sure the in-box conversion is set correctly.
if i am capturing SD material for various non DVD encodes, 8-bit is the way i go.
for HD, it depends how they color corrected it. but i generally like to go 8-bit as well.
i have yet to create 24p files using compressor for DVD.
**UPDATE**
so talking to my IT guy at work, come to find out that the NT operating (my Spruce) has a 4 GB file limit. i told him that was hard to believe, since if tha twas the case, i would have trouble with DVD-9's.
anyway, he did say something that made some sense: that since the header information was being corrupted, that no matter what program in OSX was used for playback, it would have problems. so i moved teh said file back to spruce and sure enough, it was corrupted!
he suggested that i .zip the file (since this would act like a shell) and do 2 things: FTP it via our spruce and move the file over again in the .zip.
just to appease him as well, i encoded the said file to be under 3 GB's (i am totally skeptical of this method).
will keep you guys posted
Mike M

25fps footage to put on PAL and NTSC DVDs - Inverse Telecine?

So, I've shot and edited a short item in 25P from my PAL HVX200...
I'd like to create a 'movie feature'-style NTSC DVD. One that has MPEG-2 files with inverse telecine flags to tell the NTSC decoder to repeat the fields to pull up the footage to 29.97fps.
Does that mean I need to scale my footage from 720w by 576h down to 720w by 480h, set the speed to 95.904% to 23.976fps? Can I do this in Compressor? Will Compressor take the audio and speed it up too, but keep the pitch the same?
That will get me a 24P NTSC file. How do I encode this as an MPEG for an NTSC DVD?
If I wanted to create a 'progressive' PAL MPEG for DVD (with the inverse telecine flags), are they encoded as 576 by 720 frames at 23.976fps, or at 24fps?
In the PAL world, a bit in one of the 50 non-broadcast lines is used to tell TVs and DVD players that the content is anamorphic. Is there an equivalent for NTSC? Does Compressor take care of that?
G5 2x2.5GHz Mac OS X (10.3.9)

Hey Alex
a little confused here, but from what i can gather:
you have a movie shot @ 25 fps (PAL)
you want to make a NTSC dvd and a PAL DVD, is this correct from the above source and make sure they are progressive?
well ok the PAL one is easy, just take your source video into compressor and in the frame control tab, make sure that your ouput field is progressive.
the NTSC DVD is a little tougher. do you have FCP?
the only difficulty i do see, like you said was the audio pitch/speed.
i guess you CAN do a conversion in compressor, but how well it looks.. dont know i will run some tests and let you know
Mikey

Illustrator document with positive photoshop (.tif, .psd) file prints negative. How do I fix this?

I placed a positive grayscale photoshop file (.tif, .psd format) in an illustrator document that I painted in a spot color, when I print it, it outputs as inverse, negative. How do I fix this problem. It looks fine on the screen, but when I print it prints in negative. Is there some setting in photoshop or illustrator to fix this. Please advise
Joe

okay I figured out how I can get it to print correctly. I discovered the problem is when I paint the photoshop file in a spot color (pantone, gcmi), the file prints in negative or inverse of the image, but if i paint it in cmyk equivalent of the spot color i want then it prints fine.
Thanks all for your help

Inverse Telecine...

If I shoot in 24P, can I use a program called JES Deinterlacer to perform an inverse telecine then re-import into FCE???
I am having a hard time getting an answer about using 24P footage with FCE. I want to import 24P footage into FCE after a pulldown has been performed using JES Deinterlacer.
Is this possible? Does anybody in the Apple world know?
Thanks Everyone!!

Oh I am choosing the H.264 because I assume it is the the best compression. I would never be able to fit and hour or so of uncompressed HD footage on a standard DVD. Is there a better exporting setting to use in FCE that will give you max resolution and allow you to fit up to an hour of 1080i HD onto a dual layer DVD? I think the dual layer holds 8.5GB?
I used a Canon HV20, it says it is 24P, but the way the editing program recognizes it from other 24P cameras is different from what I have researched. I think for this camera they call it 24P standard. Here is an explanation for use with the Canon Hv20 and FCP on one of Apple's articles:
http://docs.info.apple.com/article.html?artnum=306389
The problem is I do not have FCP6, only FCE. It looks as though I am going to have to get FCP with all the issues I am going to encounter!! If you have any advice that may help me in just using FCE for now that would be great. If we can sell our movie someday then we can buy FCP!!!
Message was edited by: Rory Mells

HT204053 I have multiple family members using one apple id account and all of each others information is going onto each others phones/how do i stop this?

I have multiple family members using one apple id and all of our data is going onto each others phones/how do i stop this?

Each person needs to have their own separate Apple ID along with their own separate computer user account and iTunes Library.

TS3989 My 5th gen ipod touch was stolen. I removed the device from my iTunes account, but their pictures still show up on the photostream on the one I purchased to replace it. How do I get this to stop, the cops have no interest in their faces, nor do I

My 5th gen iPod touh was stolen a month ago. I immediately removed that device from my account and yet today I looked at my photostream and there are tons of pics of these people on my photostream. How do I get this to stop?!?

Change your iCloud ID password: http://support.apple.com/kb/HT5624. After doing so, go to Settings>iCloud, tap Delete Account, then sign back in with the new password.

HT1351 Some of the songs I bought from iTunes will not sync to my iPhone. They show up on my phone, but the letters look faed and I can't play them. How do I fix this? I tried restoring my iPhone and it didn't work.

Some of the songs I bought from iTunes will not sync to my iPhone. They show up on my phone, but the letters look faed and I can't play them. How do I fix this? I tried restoring my iPhone and it didn't work.

Sorry, I meant the letters look "faded" not faed.

CD's not purchased from iTunes but uploaded to iTunes do not show up in the music folder on Apple TV! How can I fix this?

CD's purchased from iTunes but uploaded to iTunes do not show up in the music folder on my Apple TV! How do I fix this?

You would need to make sure you're accessing the Computers icon. If you are under the Music icon, that will be accessing the cloud and only show iTunes purchases (unless you subscribe to iTunes Match)

When i login to update my existing apps, the login window shows the wrong apple id. and it's all prayed out, i can't change it. how do i solve this problem?

When I login to update my existing apps, the login window shows the wrong apple id. i cannot change it because it is all grayed out. how do i solve this problem?

Content and Apple IDs -
Content is forever tied to the Apple ID that bought it. Apple does not transfer content from one Apple ID to another. Apple does not merge Apple IDs. You will never be able to access your content bought with one Apple ID with a new Apple ID.

I've uploaded Acrobat XI Pro and it freezes when I'm using it. I uninstalled and re-installed. When I login, it says that it is unable to validate the account and has an option to use the trial. How do I fix this?

I've uploaded Acrobat XI Pro and it freezes when I'm using it. I uninstalled and re-installed. When I login, it says that it is unable to validate the account and has an option to use the trial. How do I fix this?

This is an open forum, not Adobe support... you need Adobe staff support to help
Adobe contact information - http://helpx.adobe.com/contact.html
-Select your product and what you need help with
-Click on the blue box "Still need help? Contact us"

XULRunner keeps saying "error: platform version 1.9.2.9 is not compatible with min version=1.9.2.10 max version=1.9.2.10 how do i fix this?

Pretty self explanatory. Whenver i open up Firefox this happens. It's happened before, and i had to reinstall firefox. I've been having a lot of problems with firefox lately... how can i fix this?

go to C:\Program Files\Mozilla Firefox\application.ini
change to
MinVersion=1.9.2
MaxVersion=1.9.2.9

When I try to open my Lightroom 5 program it comes up with this message, "Lightroom encountered an error when reading from its preview cache and needs to quit." How do I fix this?

Can someone please let me know how I can fix this error and open my Lightroom? Thanks.

You might be quicker help posting in the LR forum rather than the ACR forum, but I believe the way to fix this is to delete the preview cache.
Find your catalog folder.
Close LR.
Within the catalog folder, delete the FOLDER called Catalog-Name Previews.lrdata
Start LR.

When i double click itunes it doesn't open it just comes up with an error saying " The itunes library.itl file cannot be found or created. The default location for this file is in the 'itunes' folder in the 'music' folder". How can i fix this?

When i double click itunes it doesn't open it just comes up with an error saying " The itunes library.itl file cannot be found or created. The default location for this file is in the 'itunes' folder in the 'music' folder. How can i fix this problem?

Anyone can help to advice how to solve this issue ?

How to inverse telecine this?

Similar Messages

Maybe you are looking for