SharedRegion memory (setup via Syslink/IPC) on TI814x and Codec Engine

Expert 2030 points

Can XDM codecs running on TI816x/TI814x DSP (SYS/BIOS 6) codec server access memory buffers in the SharedRegion?

or does the DSP codec require that all the buffers it uses to be allocated only from CMEM pool?

over 13 years ago

0 RV over 13 years ago

Expert 2030 points

Specifically this wiki shows video buffers allocated in shared memory. I need to know if video buffers allocated in "IPC_SR_FRAME_BUFFERS" can be used from within DSP codec server.

0 Chris Ring over 13 years ago in reply to RV

TI__Genius 17205 points

DSP-side 'remote' codecs can access that memory.

When managing that memory, and passing it to the remote codecs (likely via some process() call), be sure to follow the rules here so CE knows about the buffers:

http://e2e.ti.com/blogs_/b/codec_engine/archive/2010/11/03/finer-details-physically-contiguous-memory.aspx

Chris

Processors

Processors forum

SharedRegion memory (setup via Syslink/IPC) on TI814x and Codec Engine