DM816x: How many displays are supported?

Binh Thai

Expert 1320 points

Hi Everyone,

The OMX_User_Guide version 5.2.0.38 says that:

"DM816x supports 3 display components simultaneously:

Two HD display components (OMX_VIDEO_DISPLAY_ID_HD0 and OMX_VIDEO_DISPLAY_ID_HD1).
One SD display (OMX_VIDEO_DISPLAY_ID_SD0)"

But the DM816x Technical Teference Manual says that:

"Four VENCs (2 HD Digital, 1 HD analog, and 1 SD analog) supports up to 3 HD (up to 1080P60) + 1 SD display simultaneously."

Why is the difference? Did I miss something?

Thanks

Binh

over 13 years ago

0 HardikShah over 13 years ago

TI__Mastermind 20245 points

Hi,

First one is a software support while second one is a hardware support.

Binh Thai said:
"Four VENCs (2 HD Digital, 1 HD analog, and 1 SD analog) supports up to 3 HD (up to 1080P60) + 1 SD display simultaneously."

Out of 3HDs one of the HD needs to be tied with either of other two, and it will have same content as other of two HD contents. So practically only two HD streams and 1SD streams can be driven, while 3rd HD will have same content as either of other two HD contents.

Regards,

Hardik Shah

0 Binh Thai over 13 years ago in reply to HardikShah

Expert 1320 points

Hardik,

Can you please tell me more specifically which HD has to be tied with another? How to control this association? Where in the technical reference manual is it discussed?

Thanks a lot,

Binh

0 HardikShah over 13 years ago in reply to Binh Thai

TI__Mastermind 20245 points

Hi,

This is a hardware feature and any HD venc can be tied to another one. Can you please let us know your exact usecase. This may not be supported in EZSDK.

Regards,

Hardik Shah

0 Binh Thai over 13 years ago in reply to HardikShah

Expert 1320 points

Thanks, Hardik, for your answer. It was only my general question. I don't have a specific use case yet.

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DM816x: How many displays are supported?