blob: 368d230e46747784a57a9e0c418996832abeee75 [file] [log] [blame]
/*
* Copyright (C) 2011 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.
*/
#include <stdlib.h>
#include <assert.h>
#include <jni.h>
#include <variablespeed.h>
// Quick #define to make sure I get all the JNI method calls right.
#define JNI_METHOD(x, y) \
JNIEXPORT y JNICALL \
Java_com_android_ex_variablespeed_VariableSpeedNative_##x
class MethodLog {
public:
explicit MethodLog(const char* name) : name_(name) {
LOGV("+ %s", name);
}
virtual ~MethodLog() {
LOGV("- %s", name_);
}
private:
const char* name_;
};
extern "C" {
JNI_METHOD(playFileDescriptor, void) (JNIEnv*, jclass, int fd, jlong offset,
jlong length) {
MethodLog _("playFileDescriptor");
AudioEngine::GetEngine()->PlayFileDescriptor(fd, offset, length);
}
JNI_METHOD(playUri, void) (JNIEnv* env, jclass, jstring uri) {
MethodLog _("playUri");
const char* utf8 = env->GetStringUTFChars(uri, NULL);
CHECK(NULL != utf8);
AudioEngine::GetEngine()->PlayUri(utf8);
}
JNI_METHOD(setVariableSpeed, void) (JNIEnv*, jclass, float speed) {
MethodLog _("setVariableSpeed");
AudioEngine::GetEngine()->SetVariableSpeed(speed);
}
JNI_METHOD(startPlayback, void) (JNIEnv*, jclass) {
MethodLog _("startPlayback");
AudioEngine::GetEngine()->RequestStart();
}
JNI_METHOD(stopPlayback, void) (JNIEnv*, jclass) {
MethodLog _("stopPlayback");
AudioEngine::GetEngine()->RequestStop();
}
JNI_METHOD(getCurrentPosition, int) (JNIEnv*, jclass) {
return AudioEngine::GetEngine()->GetCurrentPosition();
}
JNI_METHOD(getTotalDuration, int) (JNIEnv*, jclass) {
return AudioEngine::GetEngine()->GetTotalDuration();
}
JNI_METHOD(initializeEngine, void) (JNIEnv*, jclass,
int targetFrames, float windowDuration,
float windowOverlapDuration, size_t maxPlayBufferCount,
float initialRate, size_t decodeInitialSize, size_t decodeMaxSize,
size_t startPositionMillis, int audioStreamType) {
MethodLog _("initializeEngine");
AudioEngine::SetEngine(new AudioEngine(targetFrames,
windowDuration, windowOverlapDuration, maxPlayBufferCount, initialRate,
decodeInitialSize, decodeMaxSize, startPositionMillis, audioStreamType));
}
JNI_METHOD(shutdownEngine, void) (JNIEnv*, jclass) {
MethodLog _("shutdownEngine");
AudioEngine::DeleteEngine();
}
} // extern "C"