I predict this is the answer. Many codecs operate on blocks of 8 pixels. 1080 is not divisible by 8, so many codecs will encode 1088 and then the player is told to ignore the last 8 lines.
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I predict this is the answer. Many codecs operate on blocks of 8 pixels. 1080 is not divisible by 8, so many codecs will encode 1088 and then the player is told to ignore the last 8 lines.