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aacdec: Implement LTP support.

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Ported from gsoc svn.
This commit is contained in:
Young Han Lee
2011-02-14 18:09:43 +09:00
committed by Alex Converse
parent 77c330a046
commit ead15f1dc1
4 changed files with 178 additions and 20 deletions
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8
libavcodec/aacdectab.h
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@@ -35,6 +35,14 @@
#include <stdint.h>
/* @name ltp_coef
* Table of the LTP coefficient (multiplied by 2)
*/
static const float ltp_coef[8] = {
1.141658, 1.393232, 1.626008, 1.822608,
1.969800, 2.135788, 2.2389202, 2.739066,
};
/* @name tns_tmp2_map
* Tables of the tmp2[] arrays of LPC coefficients used for TNS.
* The suffix _M_N[] indicate the values of coef_compress and coef_res