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Robert Strong
MediaInfo question?
on Jan 22, 2018 at 7:12:19 pm

When I check the source video from my Sony camcorder (HVR-Z5U) with MediaInfo, it shows that it is 1440 x 1080i or 1080p. I thought 1080i or 1080p was 1920 x 1080. What am I not understanding?

thanks,
robert

Videographer, editor
Refrigerated water cooled PC i7- 6950X.
Win 7 64 bit, 64Gb DDR4, Nvidia GTX580.
Sony HVR-Z5U, HVR- V1U, HVR-A1U, HDR-HC3.
Canon MK2 5D, SX50HS, GoPro Hero2.
Nikon CoolPix P510


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Graham Bernard
Re: MediaInfo question?
on Jan 22, 2018 at 8:28:30 pm

[Robert Strong] "What am I not understanding?"
Roll-Up Roll-Up welcome to the wacky world of PAR - the Pixel Aspect Ratio. Draw the curtains, lower the lights and breathe out slowly..... Ready? Really....?

Here yah goes : 1440x1080 is also known as HDV. HDV was the first consumer form of HD which was tape based. But HD is 16:9 aspect ratio, so the sensor had rectangular pixels (non square - 1.33:1) and when played back, the 'non square' pixels fill the 16:9 screen. Check your PAR on your HVR cammies.

Questions?

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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Robert Strong
Re: MediaInfo question?
on Jan 22, 2018 at 9:12:57 pm

Hi Grazie, thanks for your response. Ummm, so what am I looking for in my cammies 'pixel aspect ratio' ...... a specific setting? My source files are showing as 16x9.

thanks again...
robert

Videographer, editor
Refrigerated water cooled PC i7- 6950X.
Win 7 64 bit, 64Gb DDR4, Nvidia GTX580.
Sony HVR-Z5U, HVR- V1U, HVR-A1U, HDR-HC3.
Canon MK2 5D, SX50HS, GoPro Hero2.
Nikon CoolPix P510


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Graham Bernard
Re: MediaInfo question?
on Jan 22, 2018 at 9:20:06 pm

[Robert Strong] "Ummm, so what am I looking for in my cammies 'pixel aspect ratio' ...... a specific setting? "
Start a new VP project. Go to Settings. Top right hand corner click on the “Match” and navigate to one of your HDV clips and match it. Now look at the PAR. What are you seeing? What does the PAR say?

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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Robert Strong
Re: MediaInfo question?
on Jan 22, 2018 at 9:31:49 pm

Hi Grazie,

PAR always shows 1.333 for my files.

robert

Videographer, editor
Refrigerated water cooled PC i7- 6950X.
Win 7 64 bit, 64Gb DDR4, Nvidia GTX580.
Sony HVR-Z5U, HVR- V1U, HVR-A1U, HDR-HC3.
Canon MK2 5D, SX50HS, GoPro Hero2.
Nikon CoolPix P510


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Graham Bernard
Re: MediaInfo question?
on Jan 22, 2018 at 10:01:07 pm

[Robert Strong] "PAR always shows 1.333 for my files."
And there you have it. A non-square Pixel. That’s correct for HDV. the Pixel is w i d e r than it’s height. And that’s how you ultimately get your 16x9.

Questions?

* Grazie

Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge


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