24.02.2021, 23:10
Resizing/Upscaling is the final thing I need to learn before I start converting my library.
Thanks, I read your recommended readings per provided links.
OK, agree an analog capture has PAR 1150:1053 (ITU-R 601), very similar to 12:11.
I am not cropping, keeping 720x576.
If I keep Input PAR as default 1:1, Target Resolution 904x720, now I am using correct Vapoursynth (not a normal) Preview, I see squeezed circle from the sides, frame on PC screen measures with 1.25 proportions, same playing encoded video with HW media player (Blu Ray player in the media player mode) on TV screen.
If I set Input PAR 1150:1053, Target Resolution 984x720, using Vapoursynth Preview I see the correct shape of circle, frame on PC screen measures with 1.333 (4:3) proportions.
Encoded file plays with HW media player on TV screen (as well on PC screen) with correct frame 1.333 dimensions, correct circle shape.
Re. you wrote:
“If the Vapoursynth Preview shows the circle correctly the values Hybrid uses are correct.”
The Vapoursynth Preview shows squeezed circle using default Input PAR 1:1.
It means that 1150:1053 values have to be entered in to Input PAR and override default value of 1:1, correct?
One thing to clarify:
My video file is 720x576, DAR 4:3, Hybrid Video properties show PAR 1, as you explained:
“And a PAR of 1 would mean that the DAR is the same as the SAR (=sample aspect ration = 720/576).”
How this can be DAR = SAR. DAR is 4:3 = 1.333, SAR 720/576 = 1.25, they are not the same?
P.S. I found this info:
The un-encoded AVI capture video file does not have display aspect ratio (DAR) information embedded in its data. Nor does un-encoded video have a pixel-shape aspect ratio (PAR). And always plays at its physical frame size.
Might be that explains why Hybrid uses Input PAR 1:1 for this video, and in order to have correct Target Resolution, Input PAR has to be set manually to PAR 1150:1053.
Thanks, I read your recommended readings per provided links.
OK, agree an analog capture has PAR 1150:1053 (ITU-R 601), very similar to 12:11.
I am not cropping, keeping 720x576.
If I keep Input PAR as default 1:1, Target Resolution 904x720, now I am using correct Vapoursynth (not a normal) Preview, I see squeezed circle from the sides, frame on PC screen measures with 1.25 proportions, same playing encoded video with HW media player (Blu Ray player in the media player mode) on TV screen.
If I set Input PAR 1150:1053, Target Resolution 984x720, using Vapoursynth Preview I see the correct shape of circle, frame on PC screen measures with 1.333 (4:3) proportions.
Encoded file plays with HW media player on TV screen (as well on PC screen) with correct frame 1.333 dimensions, correct circle shape.
Re. you wrote:
“If the Vapoursynth Preview shows the circle correctly the values Hybrid uses are correct.”
The Vapoursynth Preview shows squeezed circle using default Input PAR 1:1.
It means that 1150:1053 values have to be entered in to Input PAR and override default value of 1:1, correct?
One thing to clarify:
My video file is 720x576, DAR 4:3, Hybrid Video properties show PAR 1, as you explained:
“And a PAR of 1 would mean that the DAR is the same as the SAR (=sample aspect ration = 720/576).”
How this can be DAR = SAR. DAR is 4:3 = 1.333, SAR 720/576 = 1.25, they are not the same?
P.S. I found this info:
The un-encoded AVI capture video file does not have display aspect ratio (DAR) information embedded in its data. Nor does un-encoded video have a pixel-shape aspect ratio (PAR). And always plays at its physical frame size.
Might be that explains why Hybrid uses Input PAR 1:1 for this video, and in order to have correct Target Resolution, Input PAR has to be set manually to PAR 1150:1053.