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/* //device/libs/android_runtime/android_media_AudioSystem.cpp
**
** Copyright 2006, 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.
*/
#define LOG_TAG "AudioSystem"
#include "utils/Log.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <math.h>
#include "jni.h"
#include "JNIHelp.h"
#include "android_runtime/AndroidRuntime.h"
#include <media/AudioSystem.h>
#include <media/AudioTrack.h>
#include <system/audio.h>
#include <hardware/audio_policy.h>
// ----------------------------------------------------------------------------
using namespace android;
static const char* const kClassPathName = "android/media/AudioSystem";
enum AudioError {
kAudioStatusOk = 0,
kAudioStatusError = 1,
kAudioStatusMediaServerDied = 100
};
static int check_AudioSystem_Command(status_t status)
{
if (status == NO_ERROR) {
return kAudioStatusOk;
} else {
return kAudioStatusError;
}
}
static int
android_media_AudioSystem_muteMicrophone(JNIEnv *env, jobject thiz, jboolean on)
{
return check_AudioSystem_Command(AudioSystem::muteMicrophone(on));
}
static jboolean
android_media_AudioSystem_isMicrophoneMuted(JNIEnv *env, jobject thiz)
{
bool state = false;
AudioSystem::isMicrophoneMuted(&state);
return state;
}
static jboolean
android_media_AudioSystem_isStreamActive(JNIEnv *env, jobject thiz, jint stream, jint inPastMs)
{
bool state = false;
AudioSystem::isStreamActive(stream, &state, inPastMs);
return state;
}
static int
android_media_AudioSystem_setParameters(JNIEnv *env, jobject thiz, jstring keyValuePairs)
{
const jchar* c_keyValuePairs = env->GetStringCritical(keyValuePairs, 0);
String8 c_keyValuePairs8;
if (keyValuePairs) {
c_keyValuePairs8 = String8(c_keyValuePairs, env->GetStringLength(keyValuePairs));
env->ReleaseStringCritical(keyValuePairs, c_keyValuePairs);
}
int status = check_AudioSystem_Command(AudioSystem::setParameters(0, c_keyValuePairs8));
return status;
}
static jstring
android_media_AudioSystem_getParameters(JNIEnv *env, jobject thiz, jstring keys)
{
const jchar* c_keys = env->GetStringCritical(keys, 0);
String8 c_keys8;
if (keys) {
c_keys8 = String8(c_keys, env->GetStringLength(keys));
env->ReleaseStringCritical(keys, c_keys);
}
return env->NewStringUTF(AudioSystem::getParameters(0, c_keys8).string());
}
static void
android_media_AudioSystem_error_callback(status_t err)
{
JNIEnv *env = AndroidRuntime::getJNIEnv();
if (env == NULL) {
return;
}
jclass clazz = env->FindClass(kClassPathName);
int error;
switch (err) {
case DEAD_OBJECT:
error = kAudioStatusMediaServerDied;
break;
case NO_ERROR:
error = kAudioStatusOk;
break;
default:
error = kAudioStatusError;
break;
}
env->CallStaticVoidMethod(clazz, env->GetStaticMethodID(clazz, "errorCallbackFromNative","(I)V"), error);
}
static int
android_media_AudioSystem_setDeviceConnectionState(JNIEnv *env, jobject thiz, jint device, jint state, jstring device_address)
{
const char *c_address = env->GetStringUTFChars(device_address, NULL);
int status = check_AudioSystem_Command(AudioSystem::setDeviceConnectionState(static_cast <audio_devices_t>(device),
static_cast <audio_policy_dev_state_t>(state),
c_address));
env->ReleaseStringUTFChars(device_address, c_address);
return status;
}
static int
android_media_AudioSystem_getDeviceConnectionState(JNIEnv *env, jobject thiz, jint device, jstring device_address)
{
const char *c_address = env->GetStringUTFChars(device_address, NULL);
int state = static_cast <int>(AudioSystem::getDeviceConnectionState(static_cast <audio_devices_t>(device),
c_address));
env->ReleaseStringUTFChars(device_address, c_address);
return state;
}
static int
android_media_AudioSystem_setPhoneState(JNIEnv *env, jobject thiz, jint state)
{
return check_AudioSystem_Command(AudioSystem::setPhoneState(state));
}
static int
android_media_AudioSystem_setRingerMode(JNIEnv *env, jobject thiz, jint mode, jint mask)
{
return check_AudioSystem_Command(AudioSystem::setRingerMode(mode, mask));
}
static int
android_media_AudioSystem_setForceUse(JNIEnv *env, jobject thiz, jint usage, jint config)
{
return check_AudioSystem_Command(AudioSystem::setForceUse(static_cast <audio_policy_force_use_t>(usage),
static_cast <audio_policy_forced_cfg_t>(config)));
}
static int
android_media_AudioSystem_getForceUse(JNIEnv *env, jobject thiz, jint usage)
{
return static_cast <int>(AudioSystem::getForceUse(static_cast <audio_policy_force_use_t>(usage)));
}
static int
android_media_AudioSystem_initStreamVolume(JNIEnv *env, jobject thiz, jint stream, jint indexMin, jint indexMax)
{
return check_AudioSystem_Command(AudioSystem::initStreamVolume(static_cast <audio_stream_type_t>(stream),
indexMin,
indexMax));
}
static int
android_media_AudioSystem_setStreamVolumeIndex(JNIEnv *env, jobject thiz, jint stream, jint index)
{
return check_AudioSystem_Command(AudioSystem::setStreamVolumeIndex(static_cast <audio_stream_type_t>(stream), index));
}
static int
android_media_AudioSystem_getStreamVolumeIndex(JNIEnv *env, jobject thiz, jint stream)
{
int index;
if (AudioSystem::getStreamVolumeIndex(static_cast <audio_stream_type_t>(stream), &index) != NO_ERROR) {
index = -1;
}
return index;
}
static jint
android_media_AudioSystem_getDevicesForStream(JNIEnv *env, jobject thiz, jint stream)
{
return (jint) AudioSystem::getDevicesForStream(static_cast <audio_stream_type_t>(stream));
}
// ----------------------------------------------------------------------------
static JNINativeMethod gMethods[] = {
{"setParameters", "(Ljava/lang/String;)I", (void *)android_media_AudioSystem_setParameters},
{"getParameters", "(Ljava/lang/String;)Ljava/lang/String;", (void *)android_media_AudioSystem_getParameters},
{"muteMicrophone", "(Z)I", (void *)android_media_AudioSystem_muteMicrophone},
{"isMicrophoneMuted", "()Z", (void *)android_media_AudioSystem_isMicrophoneMuted},
{"isStreamActive", "(II)Z", (void *)android_media_AudioSystem_isStreamActive},
{"setDeviceConnectionState", "(IILjava/lang/String;)I", (void *)android_media_AudioSystem_setDeviceConnectionState},
{"getDeviceConnectionState", "(ILjava/lang/String;)I", (void *)android_media_AudioSystem_getDeviceConnectionState},
{"setPhoneState", "(I)I", (void *)android_media_AudioSystem_setPhoneState},
{"setRingerMode", "(II)I", (void *)android_media_AudioSystem_setRingerMode},
{"setForceUse", "(II)I", (void *)android_media_AudioSystem_setForceUse},
{"getForceUse", "(I)I", (void *)android_media_AudioSystem_getForceUse},
{"initStreamVolume", "(III)I", (void *)android_media_AudioSystem_initStreamVolume},
{"setStreamVolumeIndex","(II)I", (void *)android_media_AudioSystem_setStreamVolumeIndex},
{"getStreamVolumeIndex","(I)I", (void *)android_media_AudioSystem_getStreamVolumeIndex},
{"getDevicesForStream", "(I)I", (void *)android_media_AudioSystem_getDevicesForStream},
};
int register_android_media_AudioSystem(JNIEnv *env)
{
AudioSystem::setErrorCallback(android_media_AudioSystem_error_callback);
return AndroidRuntime::registerNativeMethods(env,
kClassPathName, gMethods, NELEM(gMethods));
}
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