A question about ipipe(vpfe dm355) YUV

Hi,

Which platform are you referring to in your question? Assuming, it is for DM35x or DM36x, the answers are below.

hongjian guo said:

1. If the data from CCDC is YUV format, can be directly into the IPIPE processing?

Yes, it can be directly passed to IPIPE.

hongjian guo said:

2. If the data from CCDC is YUV format, is it must pass through SDRAM, then to IPIPE?

No, it need not pass through SDRAM. There are some restrictions on the maximum line width of your input data though. We can look into more details based on the exact usecase that you have.

hongjian guo said:

3. How to configure the register to read SDRAM YUV data?

Please refer to DVSDK examples where we have code to set "Previewer" and "Resizer" driver in single shot mode. In this mode, IPIPE reads data from SDRAM.

Regards,

Anshuman

PS: Please mark this post as verified, if you think it has answered your question. Thanks.

Hi,

Thank you for your answer.

1.Now on the DM355 platform, the output data from CCDC is YUV. If we set  the source register of ipipeif to CCDC(.source = CCDC),  the image only appear  green and purple, rather than a clear picture. Why?

2.if we set  the source register of ipipeif to SDRAM_YUV(.source = SDRAM_YUV), there is no image data is input into the ipipe.why？

Regards,

Guo Honjian