L'octidi 28 nivôse, an CCXXIII, Kieran Kunhya a écrit : > BT601 makes this very clear. The active picture is 702 pixels.
There are two fundamental flaws with your reasoning: First, BT601 only applies to a some kind of videos. Wikipedia tells me it applies to "encoding interlaced analog video signals in digital video form"; do you think it is wrong? For all other kind of videos, all this nonsense is just irrelevant. Second, and that is more important, the SAR→DAR conversion is not a matter of conforming to a certain video standard, it is a matter of basic arithmetic. Arithmetic has been around a lot longer than BT601, or any industrial standard for video. If you have a "BT601 720ish×576 16/9 video", then SAR must be (16/9) / (702/576) = 512/351, nothing else; reversely, if the SAR is 64/45, that means the video is really 720×576 for 16/9 without any nonsense. Regards, -- Nicolas George
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