Pixel Ratio vs Frame Ratio for 16:9 video and YouTube

[Orane_Juice_Jones]

Hi,

I have some DV footage 720x576 4x3ratio Lower Field and created a sequence which I matched with source.

I want to upload this to YouTube and I understand YouTube accepts 720p, in which I use the preset YouTube export (H.264 - YouTube HD 720p 25), which adds black bars to the sides and exports out at 1280x720 Progressive. This takes approx 3 hours to export for a 45min clip.

To speed up the export I tried preset, H264 - PAL DV Widescreen, set to Progressive. By default this uses 16:9 pixel ratio, it  added bars to the sides and outputed 720x576. The export took 30minutes only, a lot quicker than the above option. When I play it back with VLC, the overall ratio is correct (i.e. black bars on sides) and picture looks fine, no obvious concerns. I uploaded this to YouTube and it appears fine also. But as I used frame resolution of 720 x 576. - Is there a problem that I havent yet discovered?  Just want to be sure before I continue down this path. Thanks

[Ann Bens]

You can also export to 788x576 with par set to 1.0.

For widescreen that would be 1050x576.

[Andy 1968]

You have several different options. There is no right or wrong way. I use 1920 X 1080i for Blu-ray and 1080 P60 for social media. I have left a video link that might be worth watching.

https://youtu.be/dVLUxRkPMdA