Controling xDM block allocation in OMAP

Yehuda Bernstein

Hello,

I'm using OMAP to create xDM alg using SPHDEC1_create(). How can I control the memory blocks locations (internal/external) that the xDM alg will use on the DSP, for its internal blocks (after getting the demand from IALG_MemRec) ?

Running from the DSP gives me the control to allocate buffers from internal/external memory after getting the IALG_MemRec but from the ARM application calling XXXX_create() doesn't give that control. The DSP do the allocation according to the info it gets from IALG_MemRec. Can I control it from the ARM?

Yehuda.

over 15 years ago

0 Chris Ring over 15 years ago

TI__Genius 17205 points

This "XDAIS logical memory type" to "DSP/BIOS physical memory type" binding is done in the DSKT2 configuration - some details here:

As an interesting side note is that the application can 'override' this somewhat when using Codec Engine to create the alg. Say a pathetic little speech alg (no offense!) requests valuable internal memory, but the application wants to ensure that precious internal memory is used only for the video algs. The app can say "I don't care what type of memory the alg I'm about to create asks for, give him external memory!". This is done with a slightly modified codec _name_. See the man page for SPHDEC1_create() for details (in the 'remarks' section).

Would look something like:

h = SPHDEC1_create(hEng, "algname::1", params);

Chris

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Controling xDM block allocation in OMAP