DM365 DVSDK Issues.

John Anderson

I hope this is ok, but I thought I'd start a thread where people can post issues they've found and solved with the DM365 SDK.

Using DVSDK 2.10.0.13

Issue: The decode application failed to play my H.264 file with an error saying that CMEM "failed to get a pool fitting a size 1548288"

Solution: In video.c the DISPLAY_PIPE_SIZE is defined as 16. However the loadmodules_sd.sh script creates 8 buffers of size 1548288. The vido thread tries to create 16 of this size buffer for the display pipe and fails.

I changed the define to 8 and then was able to play my file. I tried changing the loadmodules_sd script to create 16 but then CMEM failed to load. There is a long string of buffers created and a region of memory specified. I don't know enough about the memory map at this time to monkey with this. If anyone has any sage advice wrt specifying values for loading CMEM it would be appreciated.

over 16 years ago

0 Juan Gonzales over 16 years ago

TI__Mastermind 37340 points

my educated guess tells me that not enough memory is allocated in CMEM for it to be able to have 16 buffers of said size. You can look at how much memory is allocated to Linux (via bootargs MEM= argument) and how much is left over for CMEM (see loadmodules for start and end address assigned to cmem). If you like to learn a little more about how CMEM works, please see http://tiexpressdsp.com/index.php/CMEM_Overview

Also, I think keeping track of DM365 SDK issues and Ideas are a great idea...please be sure to post dvsdk version... as the list grows, it may make more sense to capture this information in a wiki such as http://tiexpressdsp.com/index.php/Codec_Engine_Known_Issues

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DM365 DVSDK Issues.