DM36x Capture引擎能否实现对输入图像(component输入或来自SDRAM的YUV422/420数据)的指定范围(由下图X,Y,sub-width和sub-height等参数限定的部分)进行Resizing操作?
期望结果是灰色部分被忽略,草绿色部分(sub-window)经resizer A和B,输出YUV420格式的数据用于H.264编码。
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谢谢解答。
请问“resizer需要连续物理空间”, 这是绝对的还是某一层软件的限制?是DMAI还是PSP?
如果通过PSP的VPFE driver直接对Resizer或者IPIPE的寄存器Vertical Start Position (SRC_VPS), Vertical Processing Size (SRC_VSZ), Horizontal Start Position (SRC_HPS)和Horizontal Processing Size (SRC_HSZ)进行设置, 能否实现对不连续空间的resizing呢?
我觉得硬件应该可以实现的。请尝试下面的方法,任选一种:
1. Vertical Start Position of the Input (RZA_I_VPS,RZB_I_VPS) and Horizontal Start Position of the Input (RZA_I_HPS,RZB_I_HPS)
2. Vertical Start Position (SRC_VPS)和Horizontal Start Position (SRC_HPS)