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范老师您好！请教一个问题 TB中用的是448x256分辨率的码流文件。请问如果分辨率边长不是64的倍数（如1920x1080），x_total和y_total该如何送？或者是否需要提前做些什么处理？
@shen_lee x_total y_total 超过你要的边界， 还需要padding出边界到64的倍数