// Copyright 2017 Intel Corporation All Rights Reserved.
// The source code, information and material ("Material") contained herein is
// owned by Intel Corporation or its suppliers or licensors, and title
// to such Material remains with Intel Corporation or its suppliers or
// licensors. The Material contains proprietary information of Intel
// or its suppliers and licensors. The Material is protected by worldwide
// copyright laws and treaty provisions. No part of the Material may be used,
// copied, reproduced, modified, published, uploaded, posted, transmitted,
// distributed or disclosed in any way without Intel's prior express written
// permission. No license under any patent, copyright or other intellectual
// property rights in the Material is granted to or conferred upon you,
// either expressly, by implication, inducement, estoppel or otherwise.
// Any license under such intellectual property rights must be express and
// approved by Intel in writing.
// Unless otherwise agreed by Intel in writing,
// you may not remove or alter this notice or any other notice embedded in
// Materials by Intel or Intel's suppliers or licensors in any way.

#include "examples_doc_sq.h"
#include "dsp.h"

#define VLENGTH 8

int main(void)
    ippsq_dct4_instance_q15 S;
    ippsq_status status;
    q15_t        src[VLENGTH] = { 28897, 3210, -25330, -31355, -9511, 20787, 32608, 15444 };
    q15_t        state[VLENGTH];

    CHECK_STS( status = ippsq_dct4_init_q15(&S, NULL, NULL, VLENGTH, 0, 0x4000) )
    printf_v16s("Before:\n src =\n", " %d", src, S.N);
    QM_PRINTF(" DCT length = %d\n", S.N);

    ippsq_dct4_q15(&S, state, src);

    printf_v16s("After:\n src =\n", " %d", src, S.N);
    printf_v16s(" state =\n", " %d", state, S.N);

For more complete information about compiler optimizations, see our Optimization Notice.