封装MediaPlayer JNI接口

This commit is contained in:
xiongziliang 2019-05-10 16:25:24 +08:00
parent d1035e28e9
commit 7b71115c90
3 changed files with 229 additions and 1 deletions

View File

@ -3,6 +3,8 @@
#include "test_server.cpp"
#define JNI_API(retType,funName,...) extern "C" JNIEXPORT retType Java_com_zlmediakit_jni_ZLMediaKit_##funName(JNIEnv* env, jclass cls,##__VA_ARGS__)
#define MediaPlayerCallBackSign "com/zlmediakit/jni/ZLMediaKit$MediaPlayerCallBack"
#define MediaFrameSign "com/zlmediakit/jni/ZLMediaKit$MediaFrame"
string stringFromJstring(JNIEnv *env,jstring jstr){
@ -60,11 +62,69 @@ jbyteArray jbyteArrayFromString(JNIEnv* env, const char* pat,int len = 0){
return jarray;
}
jobject makeJavaFrame(JNIEnv* env,const Frame::Ptr &frame){
static jclass jclass_obj = (jclass)env->NewGlobalRef(env->FindClass(MediaFrameSign));
static jmethodID jmethodID_init = env->GetMethodID(jclass_obj, "<init>", "()V");
static jfieldID jfieldID_dts = env->GetFieldID(jclass_obj,"dts","I");
static jfieldID jfieldID_pts = env->GetFieldID(jclass_obj,"pts","I");
static jfieldID jfieldID_prefixSize = env->GetFieldID(jclass_obj,"prefixSize","I");
static jfieldID jfieldID_keyFrame = env->GetFieldID(jclass_obj,"keyFrame","Z");
static jfieldID jfieldID_data = env->GetFieldID(jclass_obj,"data","[B");
static jfieldID jfieldID_trackType = env->GetFieldID(jclass_obj,"trackType","I");
static jfieldID jfieldID_codecId = env->GetFieldID(jclass_obj,"codecId","I");
if(!frame){
return nullptr;
}
jobject ret = env->NewObject(jclass_obj, jmethodID_init);
env->SetIntField(ret,jfieldID_dts,frame->dts());
env->SetIntField(ret,jfieldID_pts,frame->pts());
env->SetIntField(ret,jfieldID_prefixSize,frame->prefixSize());
env->SetBooleanField(ret,jfieldID_keyFrame,frame->keyFrame());
env->SetObjectField(ret,jfieldID_data,jbyteArrayFromString(env,frame->data(),frame->size()));
env->SetIntField(ret,jfieldID_trackType,frame->getTrackType());
env->SetIntField(ret,jfieldID_codecId,frame->getCodecId());
return ret;
}
static JavaVM *s_jvm = nullptr;
template <typename FUN>
void doInJavaThread(FUN &&fun){
JNIEnv *env;
int status = s_jvm->GetEnv((void **) &env, JNI_VERSION_1_6);
if (status != JNI_OK) {
if (s_jvm->AttachCurrentThread(&env, NULL) != JNI_OK) {
return;
}
}
fun(env);
if (status != JNI_OK) {
//Detach线程
s_jvm->DetachCurrentThread();
}
}
#define emitEvent(delegate,method,argFmt,...) \
{ \
doInJavaThread([&](JNIEnv* env) { \
static jclass cls = env->GetObjectClass(delegate); \
static jmethodID jmid = env->GetMethodID(cls, method, argFmt); \
jobject localRef = env->NewLocalRef(delegate); \
if(localRef){ \
env->CallVoidMethod(localRef, jmid, ##__VA_ARGS__); \
}else{ \
WarnL << "弱引用已经释放:" << method << " " << argFmt; \
}\
}); \
}
/*
*
*/
JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved) {
//设置日志
s_jvm = vm;
Logger::Instance().add(std::make_shared<ConsoleChannel>());
Logger::Instance().setWriter(std::make_shared<AsyncLogWriter>());
InfoL;
@ -100,3 +160,57 @@ JNI_API(jboolean,startDemo,jstring path_to_jni_file){
});
return true;
};
JNI_API(jlong,createMediaPlayer,jstring url,jobject callback){
static auto loadFrameClass = makeJavaFrame(env,nullptr);
MediaPlayer::Ptr *ret = new MediaPlayer::Ptr(new MediaPlayer());
MediaPlayer::Ptr &player = *ret;
weak_ptr<MediaPlayer> weakPlayer = player;
jobject globalWeakRef = env->NewWeakGlobalRef(callback);
player->setOnPlayResult([weakPlayer,globalWeakRef](const SockException &ex) {
auto strongPlayer = weakPlayer.lock();
if (!strongPlayer) {
return;
}
emitEvent((jobject)globalWeakRef,"onPlayResult","(ILjava/lang/String;)V",(jint)ex.getErrCode(),env->NewStringUTF(ex.what()));
if(ex){
return;
}
auto viedoTrack = strongPlayer->getTrack(TrackVideo);
if (viedoTrack) {
viedoTrack->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([globalWeakRef](const Frame::Ptr &frame) {
emitEvent((jobject)globalWeakRef,"onData","(L" MediaFrameSign ";)V",makeJavaFrame(env,frame));
}));
}
auto audioTrack = strongPlayer->getTrack(TrackAudio);
if (audioTrack) {
audioTrack->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([globalWeakRef](const Frame::Ptr &frame) {
emitEvent((jobject)globalWeakRef,"onData","(L" MediaFrameSign ";)V",makeJavaFrame(env,frame));
}));
}
});
player->setOnShutdown([globalWeakRef,weakPlayer](const SockException &ex) {
auto strongPlayer = weakPlayer.lock();
if (!strongPlayer) {
return;
}
emitEvent((jobject)globalWeakRef,"onShutdown","(ILjava/lang/String;)V",(jint)ex.getErrCode(),env->NewStringUTF(ex.what()));
});
player->play(stringFromJstring(env,url));
return (jlong)(ret);
}
JNI_API(void,releaseMediaPlayer,jlong ptr){
MediaPlayer::Ptr *player = (MediaPlayer::Ptr *)ptr;
delete player;
}

View File

@ -6,16 +6,20 @@ import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import com.zlmediakit.jni.ZLMediaKit;
public class MainActivity extends AppCompatActivity {
public static final String TAG = "ZLMediaKit";
private static String[] PERMISSIONS_STORAGE = {
"android.permission.READ_EXTERNAL_STORAGE",
"android.permission.WRITE_EXTERNAL_STORAGE",
"android.permission.INTERNET"};
private ZLMediaKit.MediaPlayer _player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@ -39,6 +43,31 @@ public class MainActivity extends AppCompatActivity {
}else{
Toast.makeText(this,"请给予我权限,否则无法启动测试!" ,Toast.LENGTH_LONG).show();
}
_player = new ZLMediaKit.MediaPlayer("rtmp://live.hkstv.hk.lxdns.com/live/hks1", new ZLMediaKit.MediaPlayerCallBack() {
@Override
public void onPlayResult(int code, String msg) {
Log.d(TAG,"onPlayResult:" + code + "," + msg);
}
@Override
public void onShutdown(int code, String msg) {
Log.d(TAG,"onShutdown:" + code + "," + msg);
}
@Override
public void onData(ZLMediaKit.MediaFrame frame) {
Log.d(TAG,"onData:"
+ frame.trackType + ","
+ frame.codecId + ","
+ frame.dts + ","
+ frame.pts + ","
+ frame.keyFrame + ","
+ frame.prefixSize + ","
+ frame.data.length);
}
});
}
}

View File

@ -1,8 +1,93 @@
package com.zlmediakit.jni;
public class ZLMediaKit {
static public class MediaFrame{
/**
* 返回解码时间戳单位毫秒
*/
public int dts;
/**
* 返回显示时间戳单位毫秒
*/
public int pts;
/**
* 前缀长度譬如264前缀为0x00 00 00 01,那么前缀长度就是4
* aac前缀则为7个字节
*/
public int prefixSize;
/**
* 返回是否为关键帧
*/
public boolean keyFrame;
/**
* 音视频数据
*/
public byte[] data;
/**
* 是音频还是视频
* typedef enum {
* TrackInvalid = -1,
* TrackVideo = 0,
* TrackAudio,
* TrackTitle,
* TrackMax = 0x7FFF
* } TrackType;
*/
public int trackType;
/**
* 编码类型
* typedef enum {
* CodecInvalid = -1,
* CodecH264 = 0,
* CodecH265,
* CodecAAC,
* CodecMax = 0x7FFF
* } CodecId;
*/
public int codecId;
}
static public interface MediaPlayerCallBack{
void onPlayResult(int code,String msg);
void onShutdown(int code,String msg);
void onData(MediaFrame frame);
};
static public class MediaPlayer{
private long _ptr;
private MediaPlayerCallBack _callback;
public MediaPlayer(String url,MediaPlayerCallBack callBack){
_callback = callBack;
_ptr = createMediaPlayer(url,callBack);
}
public void release(){
if(_ptr != 0){
releaseMediaPlayer(_ptr);
_ptr = 0;
}
}
@Override
protected void finalize() throws Throwable {
super.finalize();
release();
}
}
static public native boolean startDemo(String sd_path);
static public native void releaseMediaPlayer(long ptr);
static public native long createMediaPlayer(String url,MediaPlayerCallBack callback);
static {
System.loadLibrary("zlmediakit_jni");
}
static public native boolean startDemo(String sd_path);
}