Dear technical support：
I use mx8_v4l2_cap_drm.c to test and collect image data, and add the code in the static int save_to_file(int ch, struct video_channel *video_ch) function:
memcpy(cpu_buf,video_ch[ch].buffers[buf_id].planes[i].start,1280*720*2);
It takes 20 milliseconds to execute this copy.
Is there any way to shorten the copy time? Such as DMA?
Thank you!
