android_media_AudioSystem.cpp revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* //device/libs/android_runtime/android_media_AudioSystem.cpp 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2006, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** you may not use this file except in compliance with the License. 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "AudioSystem" 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "utils/Log.h" 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdio.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <unistd.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <fcntl.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <math.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_runtime/AndroidRuntime.h" 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/AudioSystem.h> 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/AudioTrack.h> 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ---------------------------------------------------------------------------- 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectenum AudioError { 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kAudioStatusOk = 0, 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kAudioStatusError = 1, 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kAudioStatusMediaServerDied = 100 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int check_AudioSystem_Command(status_t status) 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (status == NO_ERROR) { 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return kAudioStatusOk; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return kAudioStatusError; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_setVolume(JNIEnv *env, jobject clazz, jint type, jint volume) 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("setVolume(%d)", int(volume)); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return check_AudioSystem_Command(AudioSystem::setStreamVolume(type, AudioSystem::linearToLog(volume))); 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_getVolume(JNIEnv *env, jobject clazz, jint type) 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float v; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int v_int = -1; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (AudioSystem::getStreamVolume(int(type), &v) == NO_ERROR) { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v_int = AudioSystem::logToLinear(v); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v_int; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_muteMicrophone(JNIEnv *env, jobject thiz, jboolean on) 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return check_AudioSystem_Command(AudioSystem::muteMicrophone(on)); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jboolean 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_isMicrophoneMuted(JNIEnv *env, jobject thiz) 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool state = false; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::isMicrophoneMuted(&state); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_setRouting(JNIEnv *env, jobject clazz, jint mode, jint routes, jint mask) 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return check_AudioSystem_Command(AudioSystem::setRouting(mode, uint32_t(routes), uint32_t(mask))); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_getRouting(JNIEnv *env, jobject clazz, jint mode) 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t routes = -1; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::getRouting(mode, &routes); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return jint(routes); 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_setMode(JNIEnv *env, jobject clazz, jint mode) 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return check_AudioSystem_Command(AudioSystem::setMode(mode)); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_getMode(JNIEnv *env, jobject clazz) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode = AudioSystem::MODE_INVALID; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::getMode(&mode); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return jint(mode); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jboolean 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_isMusicActive(JNIEnv *env, jobject thiz) 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool state = false; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::isMusicActive(&state); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Temporary interface, do not use 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// TODO: Replace with a more generic key:value get/set mechanism 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectandroid_media_AudioSystem_setParameter(JNIEnv *env, jobject thiz, jstring key, jstring value) 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *c_key = env->GetStringUTFChars(key, NULL); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *c_value = env->GetStringUTFChars(value, NULL); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::setParameter(c_key, c_value); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(key, c_key); 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(value, c_value); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_media_AudioSystem_error_callback(status_t err) 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv *env = AndroidRuntime::getJNIEnv(); 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass("android/media/AudioSystem"); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int error; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (err) { 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case DEAD_OBJECT: 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project error = kAudioStatusMediaServerDied; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case NO_ERROR: 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project error = kAudioStatusOk; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project error = kAudioStatusError; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->CallStaticVoidMethod(clazz, env->GetStaticMethodID(clazz, "errorCallbackFromNative","(I)V"), error); 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ---------------------------------------------------------------------------- 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gMethods[] = { 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setVolume", "(II)I", (void *)android_media_AudioSystem_setVolume}, 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getVolume", "(I)I", (void *)android_media_AudioSystem_getVolume}, 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setParameter", "(Ljava/lang/String;Ljava/lang/String;)V", (void *)android_media_AudioSystem_setParameter}, 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"muteMicrophone", "(Z)I", (void *)android_media_AudioSystem_muteMicrophone}, 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"isMicrophoneMuted", "()Z", (void *)android_media_AudioSystem_isMicrophoneMuted}, 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setRouting", "(III)I", (void *)android_media_AudioSystem_setRouting}, 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getRouting", "(I)I", (void *)android_media_AudioSystem_getRouting}, 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setMode", "(I)I", (void *)android_media_AudioSystem_setMode}, 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getMode", "()I", (void *)android_media_AudioSystem_getMode}, 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"isMusicActive", "()Z", (void *)android_media_AudioSystem_isMusicActive}, 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectconst char* const kClassPathName = "android/media/AudioSystem"; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_media_AudioSystem(JNIEnv *env) 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioSystem::setErrorCallback(android_media_AudioSystem_error_callback); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods(env, 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "android/media/AudioSystem", gMethods, NELEM(gMethods)); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 179