Codecs for GSM and G729 memory

harald85 — Tue, 04 Aug 2009 09:56:23 GMT

Hi
I am using the GSM and the G729 Codec from the IPP in Kernelmode and it works fine but now i want to optimize my driver and see the following think. I initialize the codecs in following order:

1) GSM for decode
2) GSM for encode
3) G729 for decode
4) G729 for encode

For every Codec i need 72 Bytes for the CodecInfo which is ok but then i need two more memorys for the Codec whith following sizes:

1) GSM for decode 20Byte and 712Byte
2) GSM for encode 20Byte and 1720Byte
3) G729 for decode 20Byte and 2312Byte
4) G729 for encode 20Byte and 3548Byte

So my question is if it is normal that the encode and decode need different Memorysize or if I have an mistake in my Code?!

THANKS

Harald

Re: Codecs for GSM and G729 memory

Vyacheslav_Baranniko — Mon, 10 Aug 2009 10:09:22 GMT

Quoting - harald85

Hi Harald,and thank you for using IPP speech codecs.
Normally,the encoder is more complex andmore memory demanding than the decoder, its counterpart. So, there is no mistake in you code in this regard.
Vyacheslav, IPP.

topic Re: Codecs for GSM and G729 memory in Intel® Integrated Performance Primitives

Codecs for GSM and G729 memory

Re: Codecs for GSM and G729 memory