Tôi đã giải quyết được sự cố của mình. Dưới đây là hoàn toàn mã nguồn gốc của tôi cho OpenSL ES trong trường hợp ai cần này:
#include <jni.h>
#include<android/log.h>
// LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog 넣어주세요
#define LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, "OSLESMediaPlayer", __VA_ARGS__)
#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG , "OSLESMediaPlayer", __VA_ARGS__)
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO , "OSLESMediaPlayer", __VA_ARGS__)
#define LOGW(...) __android_log_print(ANDROID_LOG_WARN , "OSLESMediaPlayer", __VA_ARGS__)
#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR , "OSLESMediaPlayer", __VA_ARGS__)
// for native audio
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
#include <assert.h>
#include <sys/types.h>
// engine interfaces
static SLObjectItf engineObject = NULL;
static SLEngineItf engineEngine;
// URI player interfaces
static SLObjectItf uriPlayerObject = NULL;
static SLPlayItf uriPlayerPlay;
static SLSeekItf uriPlayerSeek;
static SLPlaybackRateItf uriPlaybackRate;
// output mix interfaces
static SLObjectItf outputMixObject = NULL;
// playback rate (default 1x:1000)
static SLpermille playbackMinRate = 500;
static SLpermille playbackMaxRate = 2000;
static SLpermille playbackRateStepSize;
//Pitch
static SLPitchItf uriPlaybackPitch;
static SLpermille playbackMinPitch = 500;
static SLpermille playbackMaxPitch = 2000;
// create the engine and output mix objects
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_createEngine(
JNIEnv* env, jclass clazz) {
SLresult result;
// create engine
LOGD("create engine");
result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);
assert(SL_RESULT_SUCCESS == result);
// realize the engine
LOGD("realize the engine");
result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
// get the engine interface, which is needed in order to create other objects
LOGD("get the engine interface");
result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE,
&engineEngine);
assert(SL_RESULT_SUCCESS == result);
// create output mix, with environmental reverb specified as a non-required interface
LOGD("create output mix");
const SLInterfaceID ids[1] = {SL_IID_PLAYBACKRATE};
const SLboolean req[1] = {SL_BOOLEAN_FALSE};
result = (*engineEngine)->CreateOutputMix(engineEngine, &outputMixObject, 1,
ids, req);
assert(SL_RESULT_SUCCESS == result);
// realize the output mix
LOGD("realize the output mix");
result = (*outputMixObject)->Realize(outputMixObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
}
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_releaseEngine(
JNIEnv* env, jclass clazz) {
// destroy URI audio player object, and invalidate all associated interfaces
if (uriPlayerObject != NULL) {
(*uriPlayerObject)->Destroy(uriPlayerObject);
uriPlayerObject = NULL;
uriPlayerPlay = NULL;
uriPlayerSeek = NULL;
}
// destroy output mix object, and invalidate all associated interfaces
if (outputMixObject != NULL) {
(*outputMixObject)->Destroy(outputMixObject);
outputMixObject = NULL;
}
// destroy engine object, and invalidate all associated interfaces
if (engineObject != NULL) {
(*engineObject)->Destroy(engineObject);
engineObject = NULL;
engineEngine = NULL;
}
}
/*
void OnCompletion(JNIEnv* env, jclass clazz)
{
jclass cls = env->GetObjectClass(thiz);
if (cls != NULL)
{
jmethodID mid = env->GetMethodID(cls, "OnCompletion", "()V");
if (mid != NULL)
{
env->CallVoidMethod(thiz, mid, 1234);
}
}
}*/
void playStatusCallback(SLPlayItf play, void* context, SLuint32 event) {
//LOGD("playStatusCallback");
}
// create URI audio player
JNIEXPORT jboolean Java_com_swssm_waveloop_audio_OSLESMediaPlayer_createAudioPlayer(
JNIEnv* env, jclass clazz, jstring uri) {
SLresult result;
// convert Java string to UTF-8
const jbyte *utf8 = (*env)->GetStringUTFChars(env, uri, NULL);
assert(NULL != utf8);
// configure audio source
// (requires the INTERNET permission depending on the uri parameter)
SLDataLocator_URI loc_uri = { SL_DATALOCATOR_URI, (SLchar *) utf8 };
SLDataFormat_MIME format_mime = { SL_DATAFORMAT_MIME, NULL,
SL_CONTAINERTYPE_UNSPECIFIED };
SLDataSource audioSrc = { &loc_uri, &format_mime };
// configure audio sink
SLDataLocator_OutputMix loc_outmix = { SL_DATALOCATOR_OUTPUTMIX,
outputMixObject };
SLDataSink audioSnk = { &loc_outmix, NULL };
// create audio player
const SLInterfaceID ids[2] = { SL_IID_SEEK, SL_IID_PLAYBACKRATE };
const SLboolean req[2] = { SL_BOOLEAN_FALSE, SL_BOOLEAN_TRUE };
result = (*engineEngine)->CreateAudioPlayer(engineEngine, &uriPlayerObject,
&audioSrc, &audioSnk, 2, ids, req);
// note that an invalid URI is not detected here, but during prepare/prefetch on Android,
// or possibly during Realize on other platforms
assert(SL_RESULT_SUCCESS == result);
// release the Java string and UTF-8
(*env)->ReleaseStringUTFChars(env, uri, utf8);
// realize the player
result = (*uriPlayerObject)->Realize(uriPlayerObject, SL_BOOLEAN_FALSE);
// this will always succeed on Android, but we check result for portability to other platforms
if (SL_RESULT_SUCCESS != result) {
(*uriPlayerObject)->Destroy(uriPlayerObject);
uriPlayerObject = NULL;
return JNI_FALSE;
}
// get the play interface
result = (*uriPlayerObject)->GetInterface(uriPlayerObject, SL_IID_PLAY,
&uriPlayerPlay);
assert(SL_RESULT_SUCCESS == result);
// get the seek interface
result = (*uriPlayerObject)->GetInterface(uriPlayerObject, SL_IID_SEEK,
&uriPlayerSeek);
assert(SL_RESULT_SUCCESS == result);
// get playback rate interface
result = (*uriPlayerObject)->GetInterface(uriPlayerObject,
SL_IID_PLAYBACKRATE, &uriPlaybackRate);
assert(SL_RESULT_SUCCESS == result);
/* // get playback pitch interface
result = (*uriPlayerObject)->GetInterface(uriPlayerObject, SL_IID_PITCH, &uriPlaybackPitch);
assert(SL_RESULT_SUCCESS == result);*/
// register callback function
result = (*uriPlayerPlay)->RegisterCallback(uriPlayerPlay,
playStatusCallback, 0);
assert(SL_RESULT_SUCCESS == result);
result = (*uriPlayerPlay)->SetCallbackEventsMask(uriPlayerPlay,
SL_PLAYEVENT_HEADATEND); // head at end
assert(SL_RESULT_SUCCESS == result);
SLmillisecond msec;
result = (*uriPlayerPlay)->GetDuration(uriPlayerPlay, &msec);
assert(SL_RESULT_SUCCESS == result);
// no loop
result = (*uriPlayerSeek)->SetLoop(uriPlayerSeek, SL_BOOLEAN_TRUE, 0, msec);
assert(SL_RESULT_SUCCESS == result);
SLuint32 capa;
result = (*uriPlaybackRate)->GetRateRange(uriPlaybackRate, 0,
&playbackMinRate, &playbackMaxRate, &playbackRateStepSize, &capa);
assert(SL_RESULT_SUCCESS == result);
result = (*uriPlaybackRate)->SetPropertyConstraints(uriPlaybackRate,
SL_RATEPROP_PITCHCORAUDIO);
if (SL_RESULT_PARAMETER_INVALID == result) {
LOGD("Parameter Invalid");
}
if (SL_RESULT_FEATURE_UNSUPPORTED == result) {
LOGD("Feature Unsupported");
}
if (SL_RESULT_SUCCESS == result) {
assert(SL_RESULT_SUCCESS == result);
LOGD("Success");
}
/*
result = (*uriPlaybackPitch)->GetPitchCapabilities(uriPlaybackPitch, &playbackMinPitch, &playbackMaxPitch);
assert(SL_RESULT_SUCCESS == result);*/
/*
SLpermille minRate, maxRate, stepSize, rate = 1000;
SLuint32 capa;
(*uriPlaybackRate)->GetRateRange(uriPlaybackRate, 0, &minRate, &maxRate, &stepSize, &capa);
(*uriPlaybackRate)->SetRate(uriPlaybackRate, minRate);
*/
return JNI_TRUE;
}
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_releaseAudioPlayer(
JNIEnv* env, jclass clazz) {
// destroy URI audio player object, and invalidate all associated interfaces
if (uriPlayerObject != NULL) {
(*uriPlayerObject)->Destroy(uriPlayerObject);
uriPlayerObject = NULL;
uriPlayerPlay = NULL;
uriPlayerSeek = NULL;
uriPlaybackRate = NULL;
}
}
void setPlayState(SLuint32 state) {
SLresult result;
// make sure the URI audio player was created
if (NULL != uriPlayerPlay) {
// set the player's state
result = (*uriPlayerPlay)->SetPlayState(uriPlayerPlay, state);
assert(SL_RESULT_SUCCESS == result);
}
}
SLuint32 getPlayState() {
SLresult result;
// make sure the URI audio player was created
if (NULL != uriPlayerPlay) {
SLuint32 state;
result = (*uriPlayerPlay)->GetPlayState(uriPlayerPlay, &state);
assert(SL_RESULT_SUCCESS == result);
return state;
}
return 0;
}
// play
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_play(JNIEnv* env,
jclass clazz) {
setPlayState(SL_PLAYSTATE_PLAYING);
}
// stop
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_stop(JNIEnv* env,
jclass clazz) {
setPlayState(SL_PLAYSTATE_STOPPED);
}
// pause
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_pause(JNIEnv* env,
jclass clazz) {
setPlayState(SL_PLAYSTATE_PAUSED);
}
// pause
JNIEXPORT jboolean Java_com_swssm_waveloop_audio_OSLESMediaPlayer_isPlaying(
JNIEnv* env, jclass clazz) {
return (getPlayState() == SL_PLAYSTATE_PLAYING);
}
// set position
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_seekTo(
JNIEnv* env, jclass clazz, jint position) {
if (NULL != uriPlayerPlay) {
//SLuint32 state = getPlayState();
//setPlayState(SL_PLAYSTATE_PAUSED);
SLresult result;
result = (*uriPlayerSeek)->SetPosition(uriPlayerSeek, position,
SL_SEEKMODE_FAST);
assert(SL_RESULT_SUCCESS == result);
//setPlayState(state);
}
}
// get duration
JNIEXPORT jint Java_com_swssm_waveloop_audio_OSLESMediaPlayer_getDuration(
JNIEnv* env, jclass clazz) {
if (NULL != uriPlayerPlay) {
SLresult result;
SLmillisecond msec;
result = (*uriPlayerPlay)->GetDuration(uriPlayerPlay, &msec);
assert(SL_RESULT_SUCCESS == result);
return msec;
}
return 0.0f;
}
// get current position
JNIEXPORT jint Java_com_swssm_waveloop_audio_OSLESMediaPlayer_getPosition(
JNIEnv* env, jclass clazz) {
if (NULL != uriPlayerPlay) {
SLresult result;
SLmillisecond msec;
result = (*uriPlayerPlay)->GetPosition(uriPlayerPlay, &msec);
assert(SL_RESULT_SUCCESS == result);
return msec;
}
return 0.0f;
}
//llllllllllllllllllll
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_setPitch(
JNIEnv* env, jclass clazz, jint rate) {
if (NULL != uriPlaybackPitch) {
SLresult result;
result = (*uriPlaybackPitch)->SetPitch(uriPlaybackPitch, rate);
assert(SL_RESULT_SUCCESS == result);
}
}
JNIEXPORT void Java_com_swssm_waveloop_audio_OSLESMediaPlayer_setRate(
JNIEnv* env, jclass clazz, jint rate) {
if (NULL != uriPlaybackRate) {
SLresult result;
result = (*uriPlaybackRate)->SetRate(uriPlaybackRate, rate);
assert(SL_RESULT_SUCCESS == result);
}
}
JNIEXPORT jint Java_com_swssm_waveloop_audio_OSLESMediaPlayer_getRate(
JNIEnv* env, jclass clazz) {
if (NULL != uriPlaybackRate) {
SLresult result;
SLpermille rate;
result = (*uriPlaybackRate)->GetRate(uriPlaybackRate, &rate);
assert(SL_RESULT_SUCCESS == result);
return rate;
}
return 0;
}
// create URI audio player
JNIEXPORT jboolean Java_com_swssm_waveloop_audio_OSLESMediaPlayer_setLoop(
JNIEnv* env, jclass clazz, jint startPos, jint endPos) {
SLresult result;
result = (*uriPlayerSeek)->SetLoop(uriPlayerSeek, SL_BOOLEAN_TRUE, startPos,
endPos);
assert(SL_RESULT_SUCCESS == result);
return JNI_TRUE;
}
// create URI audio player
JNIEXPORT jboolean Java_com_swssm_waveloop_audio_OSLESMediaPlayer_setNoLoop(
JNIEnv* env, jclass clazz) {
SLresult result;
if (NULL != uriPlayerSeek) {
// enable whole file looping
result = (*uriPlayerSeek)->SetLoop(uriPlayerSeek, SL_BOOLEAN_TRUE, 0,
SL_TIME_UNKNOWN);
assert(SL_RESULT_SUCCESS == result);
}
return JNI_TRUE;
}
Chỉ cần biên dịch nó bằng cách sử ndk-build
lệnh và sử dụng nó. Nếu có ai thành công trong việc thay đổi sân thì hãy cho tôi biết giải pháp.
Đây là tập tin android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := audio-tools
LOCAL_SRC_FILES := OSLESMediaPlayer.c
LOCAL_CFLAGS := -DHAVE_CONFIG_H -DFPM_ARM -ffast-math -O3
LOCAL_LDLIBS += -lOpenSLES -llog
include $(BUILD_SHARED_LIBRARY)
và Application.mk nộp
APP_STL := gnustl_static
APP_CPPFLAGS += -fexceptions -frtti
APP_ABI := armeabi armeabi-v7a
Và lớp wrapper, bạn có thể sử dụng chức năng của nó trực tiếp trong dự án của bạn
package com.swssm.waveloop.audio;
public class OSLESMediaPlayer {
public native void createEngine();
public native void releaseEngine();
public native boolean createAudioPlayer(String uri);
public native void releaseAudioPlayer();
public native void play();
public native void stop();
public native void pause();
public native boolean isPlaying();
public native void seekTo(int position);
public native int getDuration();
public native int getPosition();
public native void setPitch(int rate);
public native void setRate(int rate);
public native int getRate();
public native void setLoop(int startPos, int endPos);
public native void setNoLoop();
public interface OnCompletionListener {
public void OnCompletion();
}
private OnCompletionListener mCompletionListener;
public void SetOnCompletionListener(OnCompletionListener listener)
{
mCompletionListener = listener;
}
private void OnCompletion()
{
mCompletionListener.OnCompletion();
int position = getPosition();
int duration = getDuration();
if(position != duration)
{
int a = 0;
}
else
{
int c = 0;
}
}
}
Thanx để chia sẻ kiến thức của bạn. Bạn có thể cho tôi biết rằng nó sẽ làm việc với. Tôi có thể sử dụng lib và mã này để thay đổi tiến độ của các tệp .mp3. Thanx trong vipul tiên tiến – Harsh
Có. Nó sẽ làm việc với tất cả các loại định dạng tập tin MP3, WAV vv. Nhưng tiếc là các tính năng thay đổi tiến độ sẽ không hoạt động trên ICS. Tôi không biết tại sao nhưng tính năng này đã bị xóa khỏi OpenSL ES trong Android ICS. –
Thanx. TRONG đoạn mã của bạn, bạn bao gồm 4 tệp (#include #include #include #include ) Tôi có thể tìm các tệp này ở đâu. –
Harsh