HD - Pal or NTSC??

[royal007]

I'm hoping someone can help me out. I've got a HD (.ts) 1080p file and I'm wondering how I can find out if it is PAL or NTSC. I have loaded it up in Gspot and it does not tell me any information about the file, like resolution or frame rate. I have tried in VLC player too and it's not giving out any info, just that it is a H.264/AVC Video and AC3 video. Is there a program out there that will tell me the info I need and if so, what are the distinguishing things to look for to tell the difference between PAL or NTSC. I know with DVD the resolution difference was 720x480 or 720x576, but with HD they seem to be the same for both regions. Any help in the right direction would be great. Thanks

[dphirschler]

You can find out if it is 24 fps or 25 if you look for a repeating frame every 25 frames.


Darryl

[royal007]

it's playing back a bit choppy, so i can't tell if frames are being repeated.

[cd090580]

For HD it was a stupid thing to keep PAL and NTSC as the resolution is the same for both format.
They should have implemented 24 fps as a standard format for both.

[jman98]

For HD it was a stupid thing to keep PAL and NTSC as the resolution is the same for both format.
They should have implemented 24 fps as a standard format for both.

That is exactly how HD-DVD did it, realizing like you that it made no sense to not use 24 fps for everything. Plus, there are no region codes in HD-DVD, so there's no reason to have separate PAL and NTSC masters. I'm guessing the original poster probably has a TV capture, in which case PAL and NTSC still have some meaning in high def.

[edDV]

For HD it was a stupid thing to keep PAL and NTSC as the resolution is the same for both format.
They should have implemented 24 fps as a standard format for both.

That is exactly how HD-DVD did it, realizing like you that it made no sense to not use 24 fps for everything. Plus, there are no region codes in HD-DVD, so there's no reason to have separate PAL and NTSC masters. I'm guessing the original poster probably has a TV capture, in which case PAL and NTSC still have some meaning in high def.

That applies only to 24p film source.

24p (23.976) is still telecined to 29.97fps or frame repeated to 59.94 for "NTSC" playback
24p is still played as 25fps for "PAL" HDTV or frame repeated to 50 or 100fps.

Broadcast HDTV has all the same legacy NTSC/PAL frame rate issues and HD/BD DVD opens up more allowed frame rates such as 30p.

At least resolutions are being standardized at square pixel 1280x720, 1920x1080, 2kx4k and 4kx4k.

Recording formats like HDCAM and HDV still use non square PAR using 1440x1080 for 1080i to reduce file size. HDCAM and HDV do use square pixel 1280x720 for 720p .

DVCProHD uses 960x720 for 720p, 1280x1080 for 1080i NTSC and 1440x1080 for 1080i PAL.

and so on.



PS: HDCAM-SR recording format is used for digital movie production. It records 10bit 4:4:4 RGB 1920x1080 24p at either 440Mb/s or 880Mb/s. Special effects sequences are often recorded direct to RAID hard drives for uncompressed RGBA and up to 14bit depth per component.

[royal007]

I guess there is no easy way to find out what the frame rate of this .ts file is. I couldn't get it to open up in HDTV2DVD. ConvertXtoDVD was the only one that detected the file and I converted it into 2 samples, NTSC DVD and also a PAL DVD (hoping to find a problem with one of them), and the funny thing is they both play perfect, no audio sync issues, frame rates are both smooth. I thought there would at least be some kind of problem cause of the NTSC to PAL, or PAL to NTSC conversion. Weird.....

[dphirschler]

Have you tried opening the .ts file in dgMpegDec?

Anyways, if you can play it back frame by frame, check either for a 3:2 pattern (NTSC) or the 25th frame repeating (PAL).


Darryl

[manono]

Yeah, running the Preview in DGIndex should tell you the framerate. Except there are very few PAL movies that repeat a frame every second. Most of them are just speeded up, and will show 25 unique frames every second.

I thought there would at least be some kind of problem cause of the NTSC to PAL, or PAL to NTSC conversion. Weird.....

I'm sure there are differences, but you just don't know how to tell. If you'd like to upload a small sample of the source, a few seconds at most, we can figure it out. Open it in DGIndex, use the [ and ] buttons to isolate a very small section and File->Save Project and Demux Video. Then upload the resulting M2V somewhere and give us the link. Like I said, it doesn't have to be much, just a few seconds.

[royal007]

When I open it in DGIndex it says "No video sequence header found"

[Soopafresh]

DGindex will only open MPEG2 TS files.


TS Packet Editor (TSPE) will display the info.

[royal007]

any other way to slice it into a small sample?

[manono]

DGindex will only open MPEG2 TS files.

That's what I (and maybe dphirschler) thought he had, like something from a capture, perhaps converted from 1080i. So this thing is from an HD-DVD maybe?

[Soopafresh]

TSPE (see above)

[royal007]

It's definitely a TV Capture, cause it's not available on DVD or HD-DVD.

When playing it in VLC player, if I go to "Stream and Media Info" it says

Stream 0
Codec: h264
Type: Video

Stream 1
Codec: a52
Type: Audio

Program 1
Provider: Generated by TSReader 2.7.45b
Type: Digital television service

[royal007]

Thanks Soopafresh, I opened it and it has displayed the following info.

Displaying Video
Video Resolution: 720 x 480 @ 29.97000002997 fps
File size: 13344722972
Auto Finding PIDs

Not sure how accurate the info is though, as the video is actually 1920x1080, but being reported as 720x480.

[Soopafresh]

Weird. Looks like the file was created, or remuxed by someone using Tsreader Pro

Provider: Generated by TSReader 2.7.45b