apps/CtsVerifier/jni/audioquality/Wrapper.cpp - platform/cts - Git at Google

 /*
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  * License for the specific language governing permissions and limitations under
  * the License.
  */

 // Wrapper to the native phone test signal processing library, which
 // exposes an interface suitable for calling via JNI.

 #include <stdlib.h>
 #include <jni.h>

 #include "GenerateSinusoid.h"
 #include "MeasureRms.h"
 #include "GlitchTest.h"
 #include "OverflowCheck.h"
 #include "CompareSpectra.h"
 #include "LinearityTest.h"

 typedef short *shortPtr;

 extern "C" {
     JNIEXPORT jshortArray JNICALL
         Java_com_android_cts_verifier_audioquality_Native_generateSinusoid(
             JNIEnv *env, jobject obj,
             jfloat freq, jfloat duration,
             jfloat sampleRate, jfloat amplitude, jfloat ramp);
     JNIEXPORT jfloatArray JNICALL
         Java_com_android_cts_verifier_audioquality_Native_measureRms(
             JNIEnv *env, jobject obj,
             jshortArray jpcm, jfloat sampleRate, jfloat onsetThresh);
     JNIEXPORT jfloatArray JNICALL
         Java_com_android_cts_verifier_audioquality_Native_glitchTest(
             JNIEnv *env, jobject obj,
             jfloat sampleRate, jfloat stimFreq, jfloat onsetThresh,
             jfloat dbSnrThresh, jshortArray jpcm);
     JNIEXPORT jfloatArray JNICALL
         Java_com_android_cts_verifier_audioquality_Native_overflowCheck(
             JNIEnv *env, jobject obj,
             jshortArray jpcm, jfloat sampleRate);
     JNIEXPORT jfloatArray JNICALL
         Java_com_android_cts_verifier_audioquality_Native_compareSpectra(
             JNIEnv *env, jobject obj,
             jshortArray jpcm, jshortArray jrefPcm, jfloat sampleRate);
     JNIEXPORT jfloat JNICALL
         Java_com_android_cts_verifier_audioquality_Native_linearityTest(
             JNIEnv *env, jobject obj,
             jobjectArray jpcms,
             jfloat sampleRate, jfloat dbStepSize, jint referenceStim);
 };

 /* Returns an array of sinusoidal samples.
    If the arguments are invalid, returns an empty array. */
 JNIEXPORT jshortArray JNICALL
     Java_com_android_cts_verifier_audioquality_Native_generateSinusoid(
         JNIEnv *env, jobject obj,
         jfloat freq, jfloat duration,
         jfloat sampleRate, jfloat amplitude, jfloat ramp) {
     short *wave = NULL;
     int numSamples = 0;

     generateSinusoid(freq, duration, sampleRate, amplitude, ramp,
             &numSamples, &wave);

     jshortArray ja;
     if (!numSamples) {
         ja = env->NewShortArray(0);
     } else {
         ja = env->NewShortArray(numSamples);
         env->SetShortArrayRegion(ja, 0, numSamples, wave);
         delete[] wave;
     }
     return ja;
 }

 /* Returns an array of four floats.
    ret[0] = RMS
    ret[1] = standard deviation of the RMS
    ret[2] = non-silent region duration
    ret[3] = mean value
 */
 JNIEXPORT jfloatArray JNICALL
     Java_com_android_cts_verifier_audioquality_Native_measureRms(
         JNIEnv *env, jobject obj,
         jshortArray jpcm, jfloat sampleRate, jfloat onsetThresh) {
     float ret[4];
     ret[0] = ret[1] = ret[2] = ret[3] = -1.0;
     int numSamples = env->GetArrayLength(jpcm);
     short *pcm = new short[numSamples];
     env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

     measureRms(pcm, numSamples, sampleRate, onsetThresh, ret, ret + 1,
             ret + 3, ret + 2);

     jfloatArray ja = env->NewFloatArray(4);
     env->SetFloatArrayRegion(ja, 0, 4, ret);
     return ja;
 }

 /* Returns an array of three floats.
    ret[0] = #bad frames
    ret[1] = error code
    ret[2] = duration
    Error code = 1 for success,
                -1 if initialization failed,
                -2 if insufficient samples
                -3 if tone signal onset not found
                -4 if tone signal end not found
 */
 JNIEXPORT jfloatArray JNICALL
     Java_com_android_cts_verifier_audioquality_Native_glitchTest(
         JNIEnv *env, jobject obj,
         jfloat sampleRate, jfloat stimFreq, jfloat onsetThresh,
         jfloat dbSnrThresh, jshortArray jpcm) {
     float ret[3];
     int numSamples = env->GetArrayLength(jpcm);
     short *pcm = new short[numSamples];
     env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

     GlitchTest gt;
     gt.init(sampleRate, stimFreq, onsetThresh, dbSnrThresh);
     float duration = -1.0;
     int badFrames = -1;
     int success = gt.checkToneSnr(pcm, numSamples, &duration, &badFrames);
     ret[0] = badFrames;
     ret[1] = success;
     ret[2] = duration;
     jfloatArray ja = env->NewFloatArray(3);
     env->SetFloatArrayRegion(ja, 0, 3, ret);
     return ja;
 }

 /* Returns an array of seven floats.
    ret[0] = num deltas
    ret[1] = error code
    ret[2] = duration
    ret[3] = onset
    ret[4] = offset
    ret[5] = max peak
    ret[6] = min peak
    Error code = 1 for success, -1 for failure. */
 JNIEXPORT jfloatArray JNICALL
     Java_com_android_cts_verifier_audioquality_Native_overflowCheck(
         JNIEnv *env, jobject obj,
         jshortArray jpcm, jfloat sampleRate) {
     float ret[7];
     int numSamples = env->GetArrayLength(jpcm);
     short *pcm = new short[numSamples];
     env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

     float duration = -1.0;
     int numDeltas = -1, onset = -1, offset = -1;
     int maxPeak = 0, minPeak = 0;
     int success = overflowCheck(pcm, numSamples, sampleRate,
             &duration, &numDeltas, &onset, &offset, &maxPeak, &minPeak);
     ret[0] = numDeltas;
     ret[1] = success ? 1 : -1;
     ret[2] = duration;
     ret[3] = onset;
     ret[4] = offset;
     ret[5] = maxPeak;
     ret[6] = minPeak;
     jfloatArray ja = env->NewFloatArray(7);
     env->SetFloatArrayRegion(ja, 0, 7, ret);
     return ja;
 }

 /* Returns an array of three floats.
    ret[0] = max deviation,
    ret[1] = error code,
    ret[2] = rms deviation.
    Error code = 1 for success, -1 for failure. */
 JNIEXPORT jfloatArray JNICALL
     Java_com_android_cts_verifier_audioquality_Native_compareSpectra(
         JNIEnv *env, jobject obj,
         jshortArray jpcm, jshortArray jrefPcm, jfloat sampleRate) {
     float ret[3];
     int numSamples = env->GetArrayLength(jpcm);
     short *pcm = new short[numSamples];
     env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);
     int nRefSamples = env->GetArrayLength(jrefPcm);
     short *refPcm = new short[nRefSamples];
     env->GetShortArrayRegion(jrefPcm, 0, nRefSamples, refPcm);

     float maxDeviation = -1.0, rmsDeviation = -1.0;
     int success = compareSpectra(pcm, numSamples, refPcm, nRefSamples,
             sampleRate, &maxDeviation, &rmsDeviation);
     ret[1] = success ? 1 : -1;

     ret[0] = maxDeviation;
     ret[2] = rmsDeviation;
     jfloatArray ja = env->NewFloatArray(3);
     env->SetFloatArrayRegion(ja, 0, 3, ret);
     return ja;
 }

 /* Return maximum deviation from linearity in dB.
    On failure returns:
       -1.0 The input signals or sample counts are missing.
       -2.0 The number of input signals is < 2.
       -3.0 The specified sample rate is <= 4000.0
       -4.0 The dB step size for the increase in stimulus level is <= 0.0
       -5.0 The specified reverence stimulus number is out of range.
       -6.0 One or more of the stimuli is too short in duration.
 */
 JNIEXPORT jfloat JNICALL
     Java_com_android_cts_verifier_audioquality_Native_linearityTest(
         JNIEnv *env, jobject obj,
         jobjectArray jpcms,
         jfloat sampleRate, jfloat dbStepSize, jint referenceStim) {
     int numSignals = env->GetArrayLength(jpcms);
     int *sampleCounts = new int[numSignals];
     short **pcms = new shortPtr[numSignals];
     jshortArray ja;
     for (int i = 0; i < numSignals; i++) {
         ja = (jshortArray) env->GetObjectArrayElement(jpcms, i);
         sampleCounts[i] = env->GetArrayLength(ja);
         pcms[i] = new short[sampleCounts[i]];
         env->GetShortArrayRegion(ja, 0, sampleCounts[i], pcms[i]);
     }

     float maxDeviation = -1.0;
     int ret = linearityTest(pcms, sampleCounts, numSignals,
             sampleRate, dbStepSize, referenceStim, &maxDeviation);
     delete[] sampleCounts;
     for (int i = 0; i < numSignals; i++) {
         delete[] pcms[i];
     }
     delete[] pcms;
     if (ret < 1) return ret;

     return maxDeviation;
 }
	/*
	* Copyright (C) 2010 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License"); you may not
	* use this file except in compliance with the License. You may obtain a copy of
	* the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	* License for the specific language governing permissions and limitations under
	* the License.
	*/

	// Wrapper to the native phone test signal processing library, which
	// exposes an interface suitable for calling via JNI.

	#include <stdlib.h>
	#include <jni.h>

	#include "GenerateSinusoid.h"
	#include "MeasureRms.h"
	#include "GlitchTest.h"
	#include "OverflowCheck.h"
	#include "CompareSpectra.h"
	#include "LinearityTest.h"

	typedef short *shortPtr;

	extern "C" {
	JNIEXPORT jshortArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_generateSinusoid(
	JNIEnv *env, jobject obj,
	jfloat freq, jfloat duration,
	jfloat sampleRate, jfloat amplitude, jfloat ramp);
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_measureRms(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jfloat sampleRate, jfloat onsetThresh);
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_glitchTest(
	JNIEnv *env, jobject obj,
	jfloat sampleRate, jfloat stimFreq, jfloat onsetThresh,
	jfloat dbSnrThresh, jshortArray jpcm);
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_overflowCheck(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jfloat sampleRate);
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_compareSpectra(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jshortArray jrefPcm, jfloat sampleRate);
	JNIEXPORT jfloat JNICALL
	Java_com_android_cts_verifier_audioquality_Native_linearityTest(
	JNIEnv *env, jobject obj,
	jobjectArray jpcms,
	jfloat sampleRate, jfloat dbStepSize, jint referenceStim);
	};

	/* Returns an array of sinusoidal samples.
	If the arguments are invalid, returns an empty array. */
	JNIEXPORT jshortArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_generateSinusoid(
	JNIEnv *env, jobject obj,
	jfloat freq, jfloat duration,
	jfloat sampleRate, jfloat amplitude, jfloat ramp) {
	short *wave = NULL;
	int numSamples = 0;

	generateSinusoid(freq, duration, sampleRate, amplitude, ramp,
	&numSamples, &wave);

	jshortArray ja;
	if (!numSamples) {
	ja = env->NewShortArray(0);
	} else {
	ja = env->NewShortArray(numSamples);
	env->SetShortArrayRegion(ja, 0, numSamples, wave);
	delete[] wave;
	}
	return ja;
	}

	/* Returns an array of four floats.
	ret[0] = RMS
	ret[1] = standard deviation of the RMS
	ret[2] = non-silent region duration
	ret[3] = mean value
	*/
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_measureRms(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jfloat sampleRate, jfloat onsetThresh) {
	float ret[4];
	ret[0] = ret[1] = ret[2] = ret[3] = -1.0;
	int numSamples = env->GetArrayLength(jpcm);
	short *pcm = new short[numSamples];
	env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

	measureRms(pcm, numSamples, sampleRate, onsetThresh, ret, ret + 1,
	ret + 3, ret + 2);

	jfloatArray ja = env->NewFloatArray(4);
	env->SetFloatArrayRegion(ja, 0, 4, ret);
	return ja;
	}

	/* Returns an array of three floats.
	ret[0] = #bad frames
	ret[1] = error code
	ret[2] = duration
	Error code = 1 for success,
	-1 if initialization failed,
	-2 if insufficient samples
	-3 if tone signal onset not found
	-4 if tone signal end not found
	*/
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_glitchTest(
	JNIEnv *env, jobject obj,
	jfloat sampleRate, jfloat stimFreq, jfloat onsetThresh,
	jfloat dbSnrThresh, jshortArray jpcm) {
	float ret[3];
	int numSamples = env->GetArrayLength(jpcm);
	short *pcm = new short[numSamples];
	env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

	GlitchTest gt;
	gt.init(sampleRate, stimFreq, onsetThresh, dbSnrThresh);
	float duration = -1.0;
	int badFrames = -1;
	int success = gt.checkToneSnr(pcm, numSamples, &duration, &badFrames);
	ret[0] = badFrames;
	ret[1] = success;
	ret[2] = duration;
	jfloatArray ja = env->NewFloatArray(3);
	env->SetFloatArrayRegion(ja, 0, 3, ret);
	return ja;
	}

	/* Returns an array of seven floats.
	ret[0] = num deltas
	ret[1] = error code
	ret[2] = duration
	ret[3] = onset
	ret[4] = offset
	ret[5] = max peak
	ret[6] = min peak
	Error code = 1 for success, -1 for failure. */
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_overflowCheck(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jfloat sampleRate) {
	float ret[7];
	int numSamples = env->GetArrayLength(jpcm);
	short *pcm = new short[numSamples];
	env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);

	float duration = -1.0;
	int numDeltas = -1, onset = -1, offset = -1;
	int maxPeak = 0, minPeak = 0;
	int success = overflowCheck(pcm, numSamples, sampleRate,
	&duration, &numDeltas, &onset, &offset, &maxPeak, &minPeak);
	ret[0] = numDeltas;
	ret[1] = success ? 1 : -1;
	ret[2] = duration;
	ret[3] = onset;
	ret[4] = offset;
	ret[5] = maxPeak;
	ret[6] = minPeak;
	jfloatArray ja = env->NewFloatArray(7);
	env->SetFloatArrayRegion(ja, 0, 7, ret);
	return ja;
	}

	/* Returns an array of three floats.
	ret[0] = max deviation,
	ret[1] = error code,
	ret[2] = rms deviation.
	Error code = 1 for success, -1 for failure. */
	JNIEXPORT jfloatArray JNICALL
	Java_com_android_cts_verifier_audioquality_Native_compareSpectra(
	JNIEnv *env, jobject obj,
	jshortArray jpcm, jshortArray jrefPcm, jfloat sampleRate) {
	float ret[3];
	int numSamples = env->GetArrayLength(jpcm);
	short *pcm = new short[numSamples];
	env->GetShortArrayRegion(jpcm, 0, numSamples, pcm);
	int nRefSamples = env->GetArrayLength(jrefPcm);
	short *refPcm = new short[nRefSamples];
	env->GetShortArrayRegion(jrefPcm, 0, nRefSamples, refPcm);

	float maxDeviation = -1.0, rmsDeviation = -1.0;
	int success = compareSpectra(pcm, numSamples, refPcm, nRefSamples,
	sampleRate, &maxDeviation, &rmsDeviation);
	ret[1] = success ? 1 : -1;

	ret[0] = maxDeviation;
	ret[2] = rmsDeviation;
	jfloatArray ja = env->NewFloatArray(3);
	env->SetFloatArrayRegion(ja, 0, 3, ret);
	return ja;
	}

	/* Return maximum deviation from linearity in dB.
	On failure returns:
	-1.0 The input signals or sample counts are missing.
	-2.0 The number of input signals is < 2.
	-3.0 The specified sample rate is <= 4000.0
	-4.0 The dB step size for the increase in stimulus level is <= 0.0
	-5.0 The specified reverence stimulus number is out of range.
	-6.0 One or more of the stimuli is too short in duration.
	*/
	JNIEXPORT jfloat JNICALL
	Java_com_android_cts_verifier_audioquality_Native_linearityTest(
	JNIEnv *env, jobject obj,
	jobjectArray jpcms,
	jfloat sampleRate, jfloat dbStepSize, jint referenceStim) {
	int numSignals = env->GetArrayLength(jpcms);
	int *sampleCounts = new int[numSignals];
	short **pcms = new shortPtr[numSignals];
	jshortArray ja;
	for (int i = 0; i < numSignals; i++) {
	ja = (jshortArray) env->GetObjectArrayElement(jpcms, i);
	sampleCounts[i] = env->GetArrayLength(ja);
	pcms[i] = new short[sampleCounts[i]];
	env->GetShortArrayRegion(ja, 0, sampleCounts[i], pcms[i]);
	}

	float maxDeviation = -1.0;
	int ret = linearityTest(pcms, sampleCounts, numSignals,
	sampleRate, dbStepSize, referenceStim, &maxDeviation);
	delete[] sampleCounts;
	for (int i = 0; i < numSignals; i++) {
	delete[] pcms[i];
	}
	delete[] pcms;
	if (ret < 1) return ret;

	return maxDeviation;
	}