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rockchip-linux / mpp

Media Process Platform (MPP) module
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mpp buffer group #235

Closed Allenhe123 closed 3 years ago

Allenhe123 commented 3 years ago

众所周知：因为nocache的原因从mpp解码后的drm/rga buffer中copy数据非常慢，而我的业务场景恰恰是需要将解码后的数据拷贝到我们自己创建的ion buffer中，所以可不可以用我们自己创建的ion buffer替换mpp自动生成的buffer group中的buffer？ 可以提供一下示例代码吗？ 谢谢。 @HermanChen

JeffyCN commented 3 years ago

we would prefer to use RGA hw module for image copying. and it's also possible to import any external dma buf(fd) to the group: MppBufferInfo info = { 0, }; MppBuffer mbuf = NULL; info.type = MPP_BUFFER_TYPE_DRM; info.size = size; info.fd = fd; mpp_buffer_import (self->ext_group, &info, &mbuf);

lawaarch commented 1 year ago

说的啥啊 没看懂