shithub: sox

ref: 8b3ab9b0f12e8e2e3321fe49e8269c5f61ed7a9c
dir: /amr-wb/random.c/

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/*-------------------------------------------------------------------*
 *                         RANDOM.C                                  *
 *-------------------------------------------------------------------*
 * Signed 16 bits random generator.                                  *
 *-------------------------------------------------------------------*/

#include "typedef.h"
#include "acelp.h"
#include "basic_op.h"
#include "count.h"


Word16 Random(Word16 * seed)
{
    /* static Word16 seed = 21845; */

    *seed = extract_l(L_add(L_shr(L_mult(*seed, 31821), 1), 13849L));   move16();

    return (*seed);
}