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How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

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HaroldC

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Registration: 04.04.2003

How to handle mpeg2 movies flagged wrong (interlaced <--> progressive) 

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Message # 1 16.10.20 - 08:40:17
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

DucHuynh007

main user




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Messages: 78
Registration: 08.29.2003

I'm recording Comcast cable TV. It looks like there's some content that that's incorrectly flagged when playing it back via cyberlink pdvd 8 mpeg2 video decoder. I'm curious what easiest options I have to watch these recordings correctly. For example: 1- Could configure my pdvd video decoder (directshow NOT CYBERLINK PLAYER) to try different deinterlacing menthods that dont depend on flags? I know these options are available for the PowerDVD player itself. However, I dont know how to change these options of for the direct show filter only. 2- A very simple software that can read the flag attribute of a video clip and allow me to change it. I'm not sure if this can be done without re-encoding (which i dont want to do at all). Thanks! MKANET

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Message # 2 16.10.20 - 08:47:18
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

surfer123

main user




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Registration: 03.13.2003

Read MPEG2 specs.

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Message # 3 16.10.20 - 08:54:28
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

m3j0n

main user




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Messages: 13,777
Registration: 12.18.2002

Go ahead and upload sample clips. That's usually the quickest way to get a definitive answer.

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-M3J0N
Message # 4 16.10.20 - 09:05:11
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

MPWRCPE

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Messages: 828
Registration: 01.31.2003

Here's one clip... it definitely doesnt play correctly on my setup. Maybe you can find something in the flags that would cause it to playback incorrectly.

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Dave '18 RAM 2500 Laramie Cummins '15 Pure White VW Touareg TDI ///'95 Avus M3 S54B32 Race car -- 2022 ProAutoSports PS1 Champion ///'72 Chamonix 2002 (Restoration project)
Message # 5 16.10.20 - 09:10:53
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

StouffvilleZ3

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Registration: 09.30.2002

It's 3:2 pulldown using a combination of hard and soft pulldown. I've seen a few of these lately. I would expect such streams to thoroughly confuse some players. I doubt that you can fix this by changing interlaced/progressive flagging.

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Modifimied Z3 2.8 Faster than you think
Message # 6 16.10.20 - 09:18:27
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

///m42 sport

main user




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Messages: 641
Registration: 10.09.2003

It's very common for real-time HD MPEG-2 encoders to fall in and out of inverse telecine. Here's a command line utility to dump the telecine flags of MPEG-2 video elementary streams: For example, here's the dump from a portion of mkanet's file. Code:

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Message # 7 16.10.20 - 09:24:48
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

Lorgow

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Messages: 65
Registration: 12.29.2002

Below video is only 12MB's and is a perfect example of jump video and flashes of deinterlace combing artifacts. It's happening once every 3 seconds. Maybe there's some flags in the video that might have you a hint to whats wrong. Thanks!

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Eric /OO\(][)/OO\
Message # 8 16.10.20 - 09:33:33
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)

Marvelphx

main user




Statistics:
Messages: 183
Registration: 09.06.2002

I just found out what's wrong. It was my display adapter (8800GT). I swapped it out with my old Nvidia 8600GT, and it played everything back using the same decoders, same driver (and driver settings). I dont know how the card got damaged specifically that way without affecting anything else.

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Message # 9 16.10.20 - 09:37:01
RE: How to handle mpeg2 movies flagged wrong (interlaced <--> progressive)
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