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DVDFab / DVD Region+CSS Free Discuss, Inverse Telecine in DVD Fab at Copy Movie forum; Almost all DVDs today are telecined. Is there any way to convert to mobile (PSP, iPOD and other profiles) with telecine instead deinterlace? Also, deinterlace in only available if you edit the XML profile and put a tag to deinterlace. If there is a option in GUI will be much


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Old 11-06-2008   #1 (permalink)
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Inverse Telecine in DVD Fab

Almost all DVDs today are telecined. Is there any way to convert to mobile (PSP, iPOD and other profiles) with telecine instead deinterlace?

Also, deinterlace in only available if you edit the XML profile and put a tag to deinterlace. If there is a option in GUI will be much more easy.
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Old 11-06-2008   #2 (permalink)
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Re: Inverse Telecine in DVD Fab

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Originally Posted by acrespo View Post
Almost all DVDs today are telecined. Is there any way to convert to mobile (PSP, iPOD and other profiles) with telecine instead deinterlace?

Also, deinterlace in only available if you edit the XML profile and put a tag to deinterlace. If there is a option in GUI will be much more easy.
Telesine is the process of transferring motion picture film into video form unless I am mistaken. I did not know it had anything to do with DVDs. I just learned something. ( tele= televison cine= cimema). I am not sure DVD Fab can do this, but it does so many things maybe Fengtao can make it do this also.
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Old 11-06-2008   #3 (permalink)
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Re: Inverse Telecine in DVD Fab

My player (Archos) and TV (LG) cope with telecined content without judder, shudder or jumping. But it would be nice to have more control over the codecs in DVDFab from the GUI.
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Old 12-06-2008   #4 (permalink)
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Re: Inverse Telecine in DVD Fab

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My player (Archos) and TV (LG) cope with telecined content without judder, shudder or jumping. But it would be nice to have more control over the codecs in DVDFab from the GUI.
You are a smart guy Signals, maybe we should put this in the thread for new features.
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Old 12-06-2008   #5 (permalink)
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Re: Inverse Telecine in DVD Fab

Telecine is a process that put some flags in MPEG2 stream to transform 24fps video file in 29.97 fps to be in DVD specifications. The inverse telecine process invert the process to be a video back in 24 fps. This process save about 20% bitrate and it's less cpu intensive, because deinterlace process need to find the best odd field to connect with best top field. Inverse telecine just discard fields that are "interlaced".
There is two types of telecine, hard and soft. Soft telecine is what I have described above. Hard telecine is a process that really change the fps of video to 29.97 and not only put flags in mpeg2 stream.
This feature will be very good to DVD Fab.
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Old 12-06-2008   #6 (permalink)
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Re: Inverse Telecine in DVD Fab

This is going to be highly dependent on what output format you are looking for. If you are outputting as H264 or Xvid then it is possible to automatically de-interlace/reverse telecine the video in DVDFab from the GUI. Simply force the framerate to 23.976fps under conversion settings.

As for VOB output (MPEG2), I would like to see DVDFab do simple reverse of soft Telecine but it is no easy task. You save 20% only on hard Telecine content. With soft Telecine, the flags simply request that certain frames are repeated and the file is the same size if you change the flags and fps. The problem is that sometimes the movie has irregular telecine or a mix of soft telecine, hard telecine, and interlaced content which will cause the audio to go out-of-sync or jump.

The only way I've been able to consistently get a soft telecined DVD back to the (near) original 24fps progressive Film content and keep the audio in sync is to use a Mencoder script. If your interested in this method then search for PS3 in this forum.
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Old 12-06-2008   #7 (permalink)
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Re: Inverse Telecine in DVD Fab

Anyone who wants to understand about telecine should read this - I know it is quite intensive stuff, but it is very good.

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Old 12-06-2008   #8 (permalink)
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Re: Inverse Telecine in DVD Fab

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Originally Posted by Complication View Post
This is going to be highly dependent on what output format you are looking for. If you are outputting as H264 or Xvid then it is possible to automatically de-interlace/reverse telecine the video in DVDFab from the GUI. Simply force the framerate to 23.976fps under conversion settings.

As for VOB output (MPEG2), I would like to see DVDFab do simple reverse of soft Telecine but it is no easy task. You save 20% only on hard Telecine content. With soft Telecine, the flags simply request that certain frames are repeated and the file is the same size if you change the flags and fps. The problem is that sometimes the movie has irregular telecine or a mix of soft telecine, hard telecine, and interlaced content which will cause the audio to go out-of-sync or jump.

The only way I've been able to consistently get a soft telecined DVD back to the (near) original 24fps progressive Film content and keep the audio in sync is to use a Mencoder script. If your interested in this method then search for PS3 in this forum.
You are right about 20% save only in hard telecine but it's true only when you use a vob passtrough option. When you convert to MP4 or AVI you need a option to do a inverse telecine base on soft and other option to hard telecine. Mencoder has these options and, as I understood, DVD Fab is based on mencoder. If you only set fps to 23.976 the progressive frames will not be restored, unless DVD Fab enable inverse telecine automatically.
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Old 12-06-2008   #9 (permalink)
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Re: Inverse Telecine in DVD Fab

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Originally Posted by acrespo View Post
You are right about 20% save only in hard telecine but it's true only when you use a vob passtrough option. When you convert to MP4 or AVI you need a option to do a inverse telecine base on soft and other option to hard telecine. Mencoder has these options and, as I understood, DVD Fab is based on mencoder. If you only set fps to 23.976 the progressive frames will not be restored, unless DVD Fab enable inverse telecine automatically.
I would like to see more options to change the flags on vob passthrough. Especially if DVDFab could do it smartly to correct irregular telecine and mixed content.

As for the conversion options, have you generated an incorrect de-interlace with DVDFab? I really only run small tests because of the current drawbacks with conversion and haven't found it error yet. It is possible that the de-interlacer in DVDFab is smart enough to recognize telecine and simply ignore the flags. I know that is what many progressive scan DVD players do.

Your right, they are using FFMPEG code so they should be able to give the same options. This brings up another issue which I'll address in a different thread.
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Old 12-06-2008   #10 (permalink)
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Re: Inverse Telecine in DVD Fab

I didn't see your thread in question. If you were asking about source code or anything of that nature, yes it will be deleted. I've seen it happen here many times........
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Last edited by alan1476; 12-06-2008 at 23:40.
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Old 12-06-2008   #11 (permalink)
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Re: Inverse Telecine in DVD Fab

[
This is not a platform for GPL or Source Code discussions. Please stick to the topic of the thread " Telecine".
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