VoLIB VPE SFC: Use same buffer for input and output

Chris Johnson1

Hello,

I was wondering if it is possible to use the same buffer for both input and output to the SFC component of the VPE module. I understand that the input is the delay_line pointer which contains previous samples and the samples of the current frame. Can I use a pointer to the current frame samples in the buffer used for delay_line as the sig_out pointer without problems?

Regards,

Chris

over 11 years ago

0 David Friedland over 11 years ago

TI__Mastermind 18320 points

Chris,

What device are you using?

0 lding over 11 years ago in reply to David Friedland

TI__Guru* 95265 points

Chris,

For sfcDecimationBy2(), it is okay to do that because one output sample is generated for every two input samples. For sfcInterpolationBy2(), doing that will overwrite the input buffer because two output samples are generated for every input sample.

Regards, Eric

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VoLIB VPE SFC: Use same buffer for input and output