H264-HP Decoder queries !!!!

Hi Studinstru, Please see below answers:

1) No need to run in compliance, you can select in Testvecs.cfg if application runs in compliance mode or if decoded output file is written .  

>>> Testvecs.cfg>>>>

X

Config Input

Output/Reference

>>>>>>>>>>>>>>>

where X may be set as:

1 - for compliance checking, no output file is created

0 - for writing the output to the output file

2) You can calculate time per frame dividing the #cycles_per_frame/DSP_Clock

3) About how to count # of cycles you can use "Time Stamp Counter Registers" (TSCL, TSCH). Please see: http://processors.wiki.ti.com/index.php/Porting_GPP_code_to_DSP_and_Codec_Engine section: "Profile Code on DSP using CCS". I haven't use xdc.runtime Timestamps but let me ask.

Thank you,

Paula

Hi paula,

I tried the following code to get the time for doing one example function:

#include <stdio.h>
#include <xdc/runtime/Timestamp.h>
void callLongFunction();
int main()
{
    UInt32 time1, time2, delta;

    time1 = Timestamp_get32();
    callLongFunction();
    time2 = Timestamp_get32();
    delta = time2 - time1;
    printf("Time is =%d\n",delta);
    fflush(stdout);
    return 0;
}
void callLongFunction()
{
    int count=100000;
    while(count !=0)
    {
        count --;
    }
}

After running this programm am getting the out put as :

[C66xx_0] Time is =0

Why the above program out put is zero ??

I have added the following lines in my cfg script also:

var Timestamp = xdc.useModule("xdc.runtime.Timestamp");
Timestamp.SupportProxy = xdc.useModule("xdc.runtime.TimestampStd");

Please help me to get the exact reason ??

-Studinstru

Hi Studinstru, it could be related to the use of a Timestamp proxy instead of a provider. Could we try below XDC var:

var Timestamp = xdc.useModule('xdc.runtime.Timestamp');
var TimestampProvider = xdc.useModule('ti.sysbios.family.c64p.TimestampProvider');

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/sysbios/6_32_05_54/exports/bios_6_32_05_54/docs/cdoc/ti/sysbios/family/doc-files/delegates.html

http://rtsc.eclipse.org/docs-tip/Using_xdc.runtime_Timestamps

Also could we check with breakpoinst time1 and time2 values?

Thank you,

Paula