Android平台RTSP|RTMP直播播放器技术接入说明

技术背景

大牛直播SDK自2015年发布RTSP、RTMP直播播放模块，迭代从未停止，SmartPlayer功能强大、性能强劲、高稳定、超低延迟、超低资源占用。无需赘述，全自研内核，行业内一致认可的跨平台RTSP、RTMP直播播放器。本文以Android平台为例，介绍下如何集成RTSP、RTMP播放模块。

技术对接

 系统要求

• SDK支持Android5.1及以上版本；
• 支持的CPU架构：armv7, arm64, x86, x86_64。

准备工作

• 确保SmartPlayerJniV2.java放到com.daniulive.smartplayer包名下(可在其他包名下调用)；
• Smartavengine.jar加入到工程；
• 拷贝SmartPlayerV2\app\src\main\jniLibs\armeabi-v7a、 SmartPlayerV2\app\src\main\jniLibs\arm64-v8a、SmartPlayerV2\app\src\main\jniLibs\x86和SmartPlayerV2\app\src\main\jniLibs\x86_64 下 libSmartPlayer.so到工程；
• AndroidManifast.xml添加相关权限：

• Load相关so：

static {  
    System.loadLibrary("SmartPlayer");
}

• build.gradle配置32/64位库：

splits {
    abi {
        enable true
        reset()
        // Specifies a list of ABIs that Gradle should create APKs for
        include 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64' //select ABIs to build APKs for
        // Specify that we do not want to also generate a universal APK that includes all ABIs
        universalApk true
    }
}

• 如需集成到自己系统测试，请用大牛直播SDK的app name，授权版按照授权app name正常使用即可；
• 如何改app-name，strings.xml做以下修改：

SmartPlayerSDKDemo

接口设计

Android RTSP|RTMP播放端SDK接口详解
调用描述		接口	接口描述
最先调用，如成功返回播放实例		SmartPlayerOpen	player初始化，设置上下文信息，返回player句柄
Event回调		SetSmartPlayerEventCallbackV2	设置event callback
硬解码设置（H.264）		SetSmartPlayerVideoHWDecoder	设置是否用H.264硬解码播放，如硬解码不支持，自动适配到软解码
硬解码设置（H.265）		SetSmartPlayerVideoHevcHWDecoder	设置是否用H.265硬解码播放，如硬解码不支持，自动适配到软解码
视频画面 填充模式		SmartPlayerSetRenderScaleMode	设置视频画面的填充模式，如填充整个view、等比例填充view，如不设置，默认填充整个view
设置SurfaceView模式下render类型		SmartPlayerSetSurfaceRenderFormat	设置SurfaceView模式下(NTRenderer.CreateRenderer第二个参数传false的情况)，render类型 0: RGB565格式，如不设置，默认此模式; 1: ARGB8888格式
设置SurfaceView模式下抗锯齿效果		SmartPlayerSetSurfaceAntiAlias	设置SurfaceView模式下(NTRenderer.CreateRenderer第二个参数传false的情况)，抗锯齿效果，注意：抗锯齿模式开启后，可能会影像性能，请慎用
设置播放的surface		SmartPlayerSetSurface	设置播放的surface，如果为null，则播放纯音频
设置视频硬解码下Mediacodec自行绘制模式		SmartPlayerSetHWRenderMode	此种模式下，硬解码兼容性和效率更好，回调YUV/RGB、快照和图像等比例缩放功能将不可用
更新硬解码surface		SmartPlayerUpdateHWRenderSurface	设置更新硬解码surface
音频回调	YUV/RGB	SmartPlayerSetExternalRender	提供解码后YUV/RGB数据接口，供用户自己render或进一步处理(如视频分析)
	Audio	SmartPlayerSetExternalAudioOutput	回调audio数据到上层（供二次处理之用）
audio输出类型		SmartPlayerSetAudioOutputType	如果use_audiotrack设置为0，将会自动选择输出设备，如果设置为1，使用audiotrack模式，一对一回音消除模式下，请选用audiotrack模式
Video输出类型		NTRenderer.CreateRenderer（上层demo内）	第二个参数，如果是true，用openGLES绘制，false则用默认surfaceView
播放模式	缓冲时间设置	SmartPlayerSetBuffer	设置播放端缓存数据buffer，单位：毫秒，如不需buffer，设置为0
	首屏秒开	SmartPlayerSetFastStartup	设置快速启动后，如果CDN缓存GOP，实现首屏秒开
	低延迟模式	SmartPlayerSetLowLatencyMode	针对类似于直播娃娃机等期待超低延迟的使用场景，超低延迟播放模式下，延迟可达到200~400ms
	快速切换URL	SmartPlayerSwitchPlaybackUrl	快速切换播放url，快速切换时，只换播放source部分，适用于不同数据流之间，快速切换（如娃娃机双摄像头切换或高低分辨率流切换）
RTSP TCP/UDP模式设置		SmartPlayerSetRTSPTcpMode	设置RTSP TCP/UDP模式，如不设置，默认UDP模式
RTSP超时时间设置		SmartPlayerSetRTSPTimeout	设置RTSP超时时间，timeout单位为秒，必须大于0
设置RTSP TCP/UDP自动切换		SmartPlayerSetRTSPAutoSwitchTcpUdp	对于RTSP来说，有些可能支持rtp over udp方式，有些可能支持使用rtp over tcp方式 为了方便使用，有些场景下可以开启自动尝试切换开关, 打开后如果udp无法播放，sdk会自动尝试tcp, 如果tcp方式播放不了,sdk会自动尝试udp.
设置RTSP用户名和密码		SetRTSPAuthenticationInfo	如果RTSP URL已包含用户名和密码, 此接口设置的用户名和密码将无效. 就是说要用这个接口设置的用户名和密码去做认证, RTSP URL不能包含用户名和密码.
实时静音		SmartPlayerSetMute	实时静音
设置播放音量		SmartPlayerSetAudioVolume	播放端音量实时调节，范围[0,100]，0时为静音，100为原始流数据最大音量
设置是否禁用 Enhanced  RTMP		DisableEnhancedRTMP	disable enhanced RTMP, SDK默认是开启enhanced RTMP的
实时截图		CaptureImage	支持JPEG和PNG两种格式
视频镜像旋转	旋转	SmartPlayerSetRotation	设置顺时针旋转, 注意除了0度之外， 其他角度都会额外消耗性能，当前支持 0度，90度, 180度, 270度 旋转
	水平反转	SmartPlayerSetFlipHorizontal	设置视频水平反转
	垂直反转	SmartPlayerSetFlipVertical	设置视频垂直反转
设置URL		SmartPlayerSetUrl	设置需要播放或录像的RTMP/RTSP url
开始播放		SmartPlayerStartPlay	开始播放RTSP/RTMP流
停止播放		SmartPlayerStopPlay	停止播放RTSP/RTMP流
关闭播放实例		SmartPlayerClose	结束时必须调用close接口释放资源

功能支持

• 音频：AAC/Speex(RTMP)/PCMA/PCMU；
• 视频：H.264、H.265；
• 播放协议：RTSP|RTMP；
• 支持纯音频、纯视频、音视频播放；
• 支持多实例播放；
• 支持软解码，特定机型硬解码；
• 支持RTSP TCP、UDP模式设置；
• 支持RTSP TCP、UDP模式自动切换；
• 支持RTSP超时时间设置，单位：秒；
• 支持buffer时间设置，单位：毫秒；
• 支持超低延迟模式；
• 支持断网自动重连、视频追赶，支持buffer状态等回调；
• 支持视频view实时旋转（0° 90° 180° 270°）；
• 支持视频view水平反转、垂直反转；
• 支持Surfaceview/OpenGL ES/TextureView绘制；
• 支持视频画面填充模式设置；
• 音频支持AudioTrack、OpenSL ES模式；
• 支持jpeg、png实时截图；
• 支持实时音量调节；
• 支持解码前音视频数据回调；
• 支持解码后YUV/RGB数据回调；
• 支持Enhanced RTMP；
• 支持扩展录像功能；

• 支持Android 5.1及以上版本。

接口调用详解

本文以大牛直播SDK Android平台SmartPlayerV2为例，播放之前，设置初始化参数配置（软解还是硬解、buffer time等）和需要播放的RTSP或RTMP URL，点开始播放即可。

onCreate()时，先new SmartPlayerJniV2()：

/*
 * SmartPlayer.java
 * Author: daniusdk.com
 */
@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_smart_player);
	
	...

    libPlayer = new SmartPlayerJniV2();
    myContext = this.getApplicationContext();
}

开始播放、停止播放实现，开始播放的时候，调用InitAndSetConfig()，完成常规参数初始化，然后调用仅播放相关的其他接口。

btnStartStopPlayback.setOnClickListener(new Button.OnClickListener() {

	// @Override
	public void onClick(View v) {

		if (isPlaying) {
			Log.i(TAG, "Stop playback stream++");

			int iRet = libPlayer.SmartPlayerStopPlay(playerHandle);

			if (iRet != 0) {
				Log.e(TAG, "Call SmartPlayerStopPlay failed..");
				return;
			}

			btnHardwareDecoder.setEnabled(true);
			btnLowLatency.setEnabled(true);

			if (!isRecording) {
				btnPopInputUrl.setEnabled(true);
				btnSetPlayBuffer.setEnabled(true);
				btnFastStartup.setEnabled(true);

				btnRecoderMgr.setEnabled(true);
				libPlayer.SmartPlayerClose(playerHandle);
				playerHandle = 0;
			}

			isPlaying = false;
			btnStartStopPlayback.setText("开始播放 ");

			if (is_enable_hardware_render_mode && sSurfaceView != null) {
				sSurfaceView.setVisibility(View.GONE);
				sSurfaceView.setVisibility(View.VISIBLE);
			}

			Log.i(TAG, "Stop playback stream--");
		} else {
			Log.i(TAG, "Start playback stream++");

			if (!isRecording) {
				InitAndSetConfig();
			}

			// 如果第二个参数设置为null，则播放纯音频
			libPlayer.SmartPlayerSetSurface(playerHandle, sSurfaceView);

			libPlayer.SmartPlayerSetRenderScaleMode(playerHandle, 1);

			//int render_format = 1;
			//libPlayer.SmartPlayerSetSurfaceRenderFormat(playerHandle, render_format);

			//int is_enable_anti_alias = 1;
			//libPlayer.SmartPlayerSetSurfaceAntiAlias(playerHandle, is_enable_anti_alias);

			if (isHardwareDecoder && is_enable_hardware_render_mode) {
				libPlayer.SmartPlayerSetHWRenderMode(playerHandle, 1);
			}

			// External Render test
			//libPlayer.SmartPlayerSetExternalRender(playerHandle, new RGBAExternalRender(imageSavePath));
			//libPlayer.SmartPlayerSetExternalRender(playerHandle, new I420ExternalRender(imageSavePath));

			libPlayer.SmartPlayerSetUserDataCallback(playerHandle, new UserDataCallback());
			//libPlayer.SmartPlayerSetSEIDataCallback(playerHandle, new SEIDataCallback());

			libPlayer.SmartPlayerSetAudioOutputType(playerHandle, 1);

			if (isMute) {
				libPlayer.SmartPlayerSetMute(playerHandle, isMute ? 1
						: 0);
			}

			if (isHardwareDecoder) {
				int isSupportHevcHwDecoder = libPlayer.SetSmartPlayerVideoHevcHWDecoder(playerHandle, 1);

				int isSupportH264HwDecoder = libPlayer
						.SetSmartPlayerVideoHWDecoder(playerHandle, 1);

				Log.i(TAG, "isSupportH264HwDecoder: " + isSupportH264HwDecoder + ", isSupportHevcHwDecoder: " + isSupportHevcHwDecoder);
			}

			libPlayer.SmartPlayerSetLowLatencyMode(playerHandle, isLowLatency ? 1
					: 0);

			libPlayer.SmartPlayerSetFlipVertical(playerHandle, is_flip_vertical ? 1 : 0);

			libPlayer.SmartPlayerSetFlipHorizontal(playerHandle, is_flip_horizontal ? 1 : 0);

			libPlayer.SmartPlayerSetRotation(playerHandle, rotate_degrees);

			libPlayer.SmartPlayerSetAudioVolume(playerHandle, curAudioVolume);

			int iPlaybackRet = libPlayer
					.SmartPlayerStartPlay(playerHandle);

			if (iPlaybackRet != 0) {
				Log.e(TAG, "Call SmartPlayerStartPlay failed..");
				return;
			}

			btnStartStopPlayback.setText("停止播放 ");

			btnPopInputUrl.setEnabled(false);
			btnPopInputKey.setEnabled(false);
			btnSetPlayBuffer.setEnabled(false);
			btnLowLatency.setEnabled(false);
			btnFastStartup.setEnabled(false);
			btnRecoderMgr.setEnabled(false);

			isPlaying = true;
			Log.i(TAG, "Start playback stream--");
		}
	}
});

由于RTSP、RTMP播放模块，除了常规的直播播放外，也可能录像、或者实时拉流转发到RTMP服务器或轻量级RTSP服务，所以，和录像、转发相关的播放端基础参数配置，放到InitAndSetConfig()实现：

private void InitAndSetConfig() {
	playerHandle = libPlayer.SmartPlayerOpen(myContext);

	if (playerHandle == 0) {
		Log.e(TAG, "surfaceHandle with nil..");
		return;
	}

	libPlayer.SetSmartPlayerEventCallbackV2(playerHandle,
			new EventHandeV2());

	libPlayer.SmartPlayerSetBuffer(playerHandle, playBuffer);

	// set report download speed(默认2秒一次回调 用户可自行调整report间隔)
	libPlayer.SmartPlayerSetReportDownloadSpeed(playerHandle, 1, 2);

	libPlayer.SmartPlayerSetFastStartup(playerHandle, isFastStartup ? 1 : 0);

	//设置RTSP超时时间
	int rtsp_timeout = 10;
	libPlayer.SmartPlayerSetRTSPTimeout(playerHandle, rtsp_timeout);

	//设置RTSP TCP/UDP模式自动切换
	int is_auto_switch_tcp_udp = 1;
	libPlayer.SmartPlayerSetRTSPAutoSwitchTcpUdp(playerHandle, is_auto_switch_tcp_udp);

	libPlayer.SmartPlayerSaveImageFlag(playerHandle, 1);

	// It only used when playback RTSP stream..
	// libPlayer.SmartPlayerSetRTSPTcpMode(playerHandle, 1);

	// playbackUrl = "rtmp://localhost:1935/live/stream1";

	if (playbackUrl == null) {
		Log.e(TAG, "playback URL with NULL...");
		return;
	}

	libPlayer.SmartPlayerSetUrl(playerHandle, playbackUrl);
	// try_set_rtsp_url(playbackUrl);
}

EventHandle播放端事件回调处理，是底层状态反馈非常重要的媒介，除了网络状态、buffering状态回调外、还有录像状态、快照状态等回调：

class EventHandeV2 implements NTSmartEventCallbackV2 {
	@Override
	public void onNTSmartEventCallbackV2(long handle, int id, long param1,
										 long param2, String param3, String param4, Object param5) {

		String player_event = "";

		switch (id) {
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_STARTED:
				player_event = "开始..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_CONNECTING:
				player_event = "连接中..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_CONNECTION_FAILED:
				player_event = "连接失败..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_CONNECTED:
				player_event = "连接成功..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_DISCONNECTED:
				player_event = "连接断开..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_STOP:
				player_event = "停止播放..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_RESOLUTION_INFO:
				player_event = "分辨率信息: width: " + param1 + ", height: " + param2;
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_NO_MEDIADATA_RECEIVED:
				player_event = "收不到媒体数据，可能是url错误..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_SWITCH_URL:
				player_event = "切换播放URL..";
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_CAPTURE_IMAGE:
				player_event = "快照: " + param1 + " 路径：" + param3;

				if (param1 == 0)
					player_event = player_event + ", 截取快照成功";
				 else
					player_event = player_event + ", 截取快照失败";

				if (param4 != null && !param4.isEmpty())
					player_event += (", user data:" + param4);

				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_RECORDER_START_NEW_FILE:
				player_event = "[record]开始一个新的录像文件 : " + param3;
				break;
			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_ONE_RECORDER_FILE_FINISHED:
				player_event = "[record]已生成一个录像文件 : " + param3;
				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_START_BUFFERING:
				Log.i(TAG, "Start Buffering");
				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_BUFFERING:
				Log.i(TAG, "Buffering:" + param1 + "%");
				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_STOP_BUFFERING:
				Log.i(TAG, "Stop Buffering");
				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_DOWNLOAD_SPEED:
				player_event = "download_speed:" + param1 + "Byte/s" + ", "
						+ (param1 * 8 / 1000) + "kbps" + ", " + (param1 / 1024)
						+ "KB/s";
				break;

			case NTSmartEventID.EVENT_DANIULIVE_ERC_PLAYER_RTSP_STATUS_CODE:
				Log.e(TAG, "RTSP error code received, please make sure username/password is correct, error code:" + param1);
				player_event = "RTSP error code:" + param1;
				break;
		}

		if (player_event.length() > 0) {
			Log.i(TAG, player_event);
			Message message = new Message();
			message.what = PLAYER_EVENT_MSG;
			message.obj = player_event;
			handler.sendMessage(message);
		}
	}
}

如果RTSP、RTMP流需要录像：

btnStartStopRecorder.setOnClickListener(new Button.OnClickListener() {

	// @Override
	public void onClick(View v) {

		if (isRecording) {

			int iRet = libPlayer.SmartPlayerStopRecorder(playerHandle);

			if (iRet != 0) {
				Log.e(TAG, "Call SmartPlayerStopRecorder failed..");
				return;
			}

			if (!isPlaying) {
				btnPopInputUrl.setEnabled(true);
				btnSetPlayBuffer.setEnabled(true);
				btnFastStartup.setEnabled(true);
				btnRecoderMgr.setEnabled(true);

				libPlayer.SmartPlayerClose(playerHandle);
				playerHandle = 0;
			}

			btnStartStopRecorder.setText(" 开始录像");

			isRecording = false;
		} else {
			Log.i(TAG, "onClick start recorder..");

			if (!isPlaying) {
				InitAndSetConfig();
			}

			ConfigRecorderFunction();

			int startRet = libPlayer.SmartPlayerStartRecorder(playerHandle);

			if (startRet != 0) {
				Log.e(TAG, "Failed to start recorder.");
				return;
			}

			btnPopInputUrl.setEnabled(false);
			btnSetPlayBuffer.setEnabled(false);
			btnFastStartup.setEnabled(false);
			btnRecoderMgr.setEnabled(false);

			isRecording = true;
			btnStartStopRecorder.setText("停止录像");
		}
	}
});

其中，录像参数配置选项设置如下，除了下面演示接口外，还可以设置仅录视频或音频：

void ConfigRecorderFunction() {
	if (libPlayer != null) {
		int is_rec_trans_code = 1;
		libPlayer.SmartPlayerSetRecorderAudioTranscodeAAC(playerHandle, is_rec_trans_code);

		if (recDir != null && !recDir.isEmpty()) {
			int ret = libPlayer.SmartPlayerCreateFileDirectory(recDir);
			if (0 == ret) {
				if (0 != libPlayer.SmartPlayerSetRecorderDirectory(
						playerHandle, recDir)) {
					Log.e(TAG, "Set recoder dir failed , path:" + recDir);
					return;
				}

				if (0 != libPlayer.SmartPlayerSetRecorderFileMaxSize(
						playerHandle, 200)) {
					Log.e(TAG,
							"SmartPublisherSetRecorderFileMaxSize failed.");
					return;
				}

			} else {
				Log.e(TAG, "Create recorder dir failed, path:" + recDir);
			}
		}
	}
}

如需播放过程中实时截图：

btnCaptureImage.setOnClickListener(new Button.OnClickListener() {
	@SuppressLint("SimpleDateFormat")
	public void onClick(View v) {
		if (0 == playerHandle)
			return;

		if (null == capture_image_date_format_)
			capture_image_date_format_ = new SimpleDateFormat("yyyyMMdd_HHmmss_SSS");

		String timestamp = capture_image_date_format_.format(new Date());
		String imageFileName = timestamp;

		String image_path = imageSavePath + "/" + imageFileName;

		int quality;
		boolean is_jpeg = true;
		if (is_jpeg) {
			image_path += ".jpeg";
			quality = 100;
		}
		else {
			image_path += ".png";
			quality = 100;
		}

		int capture_ret = libPlayer.CaptureImage(playerHandle,is_jpeg?0:1, quality, image_path, "test cix");
		Log.i(TAG, "capture image ret:" + capture_ret + ", file:" + image_path);
	}
});

如需对视频view做水平、垂直翻转或旋转：

btnFlipVertical.setOnClickListener(new Button.OnClickListener() {
	public void onClick(View v) {
		is_flip_vertical = !is_flip_vertical;

		if (is_flip_vertical) {
			btnFlipVertical.setText("取消反转");
		} else {
			btnFlipVertical.setText("垂直反转");
		}

		if (playerHandle != 0) {
			libPlayer.SmartPlayerSetFlipVertical(playerHandle,
					is_flip_vertical ? 1 : 0);
		}
	}
});

btnFlipHorizontal.setOnClickListener(new Button.OnClickListener() {
	public void onClick(View v) {
		is_flip_horizontal = !is_flip_horizontal;

		if (is_flip_horizontal) {
			btnFlipHorizontal.setText("取消反转");
		} else {
			btnFlipHorizontal.setText("水平反转");
		}

		if (playerHandle != 0) {
			libPlayer.SmartPlayerSetFlipHorizontal(playerHandle,
					is_flip_horizontal ? 1 : 0);
		}
	}
});

btnRotation.setOnClickListener(new Button.OnClickListener() {
	public void onClick(View v) {

		rotate_degrees += 90;
		rotate_degrees = rotate_degrees % 360;

		if (0 == rotate_degrees) {
			btnRotation.setText("旋转90度");
		} else if (90 == rotate_degrees) {
			btnRotation.setText("旋转180度");
		} else if (180 == rotate_degrees) {
			btnRotation.setText("旋转270度");
		} else if (270 == rotate_degrees) {
			btnRotation.setText("不旋转");
		}

		if (playerHandle != 0) {
			libPlayer.SmartPlayerSetRotation(playerHandle,
					rotate_degrees);
		}
	}
});

onDestroy() 的时候，停掉播放、录像、释放播放端实例句柄：

@Override
protected void onDestroy() {
	Log.i(TAG, "Run into activity destory++");

	if (playerHandle != 0) {
		if (isPlaying) {
			libPlayer.SmartPlayerStopPlay(playerHandle);
		}

		if (isRecording) {
			libPlayer.SmartPlayerStopRecorder(playerHandle);
		}

		libPlayer.SmartPlayerClose(playerHandle);
		playerHandle = 0;
	}
	super.onDestroy();
	finish();
	System.exit(0);
}

以上是大概的流程，如果需要播放多实例，可以做个简单的封装，多实例效果如下：

LibPlayerWrapper.java参考封装代码如下，如需额外功能，只要按照设计框架，添加进去即可：

/*
 * LibPlayerWrapper.java.java
 * Author: daniusdk.com
 */
package com.daniulive.smartplayer;

import android.content.Context;
import android.util.Log;
import android.view.Surface;
import android.view.SurfaceView;
import android.view.View;

import com.eventhandle.NTSmartEventCallbackV2;
import java.lang.ref.WeakReference;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

public class LibPlayerWrapper {
    private static String TAG = "NTLogLibPlayerW";
    private static final int OK = 0;

    private WeakReference context_;
    private final ReadWriteLock rw_lock_ = new ReentrantReadWriteLock(true);
    private final java.util.concurrent.locks.Lock write_lock_ = rw_lock_.writeLock();
    private final java.util.concurrent.locks.Lock read_lock_ = rw_lock_.readLock();

    private SmartPlayerJniV2 lib_player_;
    private volatile long native_handle_;
    private View view_;

    private volatile boolean is_playing_;
    private volatile boolean is_recording_;

    private WeakReference event_listener_;

    public LibPlayerWrapper(SmartPlayerJniV2 lib_player, Context context, EventListener listener) {
        if (!empty())
            throw new IllegalStateException("it is not empty");

        if (null == lib_player)
            throw new NullPointerException("lib_player is null");

        this.lib_player_ = lib_player;

        if (context != null)
            this.context_ = new WeakReference<>(context);

        if (listener == null ) {
            this.event_listener_ = null;
        }
        else {
            this.event_listener_ = new WeakReference<>(listener);
        }
    }

    private void clear_all_playing_flags() {
        this.is_playing_ = false;
        this.is_recording_ = false;
    }

    public void set(long handle) {
        if (!empty())
            throw new IllegalStateException("it is not empty");

        write_lock_.lock();
        try {
            clear_all_playing_flags();
            this.native_handle_ = handle;
        } finally {
            write_lock_.unlock();
        }

        Log.i(TAG, "set native_handle:" + handle);
    }

    public void SetView(View view) {
        Log.i(TAG, "SetView: " + view);
        this.view_ = view;
    }

    @Override
    protected void finalize() throws Throwable {
        try {
            if (check_native_handle()) {
                if(is_playing()) {
                    lib_player_.SmartPlayerStopPlay(get());
                    this.is_playing_ = false;
                }

                if(is_recording()) {
                    lib_player_.SmartPlayerStopRecorder(get());
                    this.is_recording_ = false;
                }

                lib_player_.SmartPlayerClose(this.native_handle_);
                Log.i(TAG, "finalize close handle:" + this.native_handle_);
                this.native_handle_ = 0;
            }
        }catch (Exception e) {

        }

        super.finalize();
    }

    public void release() {
        if (empty())
            return;

        if(is_playing())
            StopPlayer();

        if (is_recording())
            StopRecorder();

        long handle;
        write_lock_.lock();
        try {
            handle = this.native_handle_;
            this.native_handle_ = 0;
            clear_all_playing_flags();
        } finally {
            write_lock_.unlock();
        }

        if (lib_player_ != null && handle != 0)
            lib_player_.SmartPlayerClose(handle);
    }

    public boolean try_release() {
        if (empty())
            return false;

        if (is_player_running()) {
            Log.i(TAG, "try_release it is running, native_handle:" + get());
            return false;
        }

        long handle;
        write_lock_.lock();
        try {
            if (is_player_running())
                return false;

            handle = this.native_handle_;
            this.native_handle_ = 0;
        } finally {
            write_lock_.unlock();
        }

        if (lib_player_ != null && handle != 0)
            lib_player_.SmartPlayerClose(handle);

        return true;
    }

    public final boolean empty() { return 0 == this.native_handle_; }

    public final long get() { return this.native_handle_; }

    public View get_view() {return this.view_;}

    public final boolean check_native_handle() {
        return this.lib_player_ != null && this.native_handle_ != 0;
    }

    public final boolean is_playing() { return is_playing_; }

    public final boolean is_recording() { return is_recording_; }

    public final boolean is_player_running() { return is_playing_ || is_recording_; }

    private boolean isValidRtspOrRtmpUrl(String url) {
        if (url == null || url.isEmpty()) {
            return false;
        }
        return url.trim().startsWith("rtsp://") || url.startsWith("rtmp://");
    }

    private EventListener getListener() {
        if ( this.event_listener_ == null )
            return null;

        return this.event_listener_.get();
    }

    protected final Context application_context() {
        if (null == context_)
            return null;

        return context_.get();
    }

    public boolean OpenPlayerHandle(String playback_url, int play_buffer, int is_using_tcp) {

        if (check_native_handle())
            return true;

        if(!isValidRtspOrRtmpUrl(playback_url))
            return false;

        long handle = lib_player_.SmartPlayerOpen(application_context());
        if (0==handle) {
            Log.e(TAG, "sdk open failed!");
            return false;
        }

        lib_player_.SetSmartPlayerEventCallbackV2(handle, new EventHandleV2());

        lib_player_.SmartPlayerSetBuffer(handle, play_buffer);

        // set report download speed(默认2秒一次回调 用户可自行调整report间隔)
        lib_player_.SmartPlayerSetReportDownloadSpeed(handle, 1, 4);

        boolean isFastStartup = true;
        lib_player_.SmartPlayerSetFastStartup(handle, isFastStartup ? 1 : 0);

        //设置RTSP超时时间
        int rtsp_timeout = 10;
        lib_player_.SmartPlayerSetRTSPTimeout(handle, rtsp_timeout);

        //设置RTSP TCP/UDP模式自动切换
        int is_auto_switch_tcp_udp = 1;
        lib_player_.SmartPlayerSetRTSPAutoSwitchTcpUdp(handle, is_auto_switch_tcp_udp);

        lib_player_.SmartPlayerSaveImageFlag(handle, 1);

        // It only used when playback RTSP stream..
        lib_player_.SmartPlayerSetRTSPTcpMode(handle, is_using_tcp);

        lib_player_.DisableEnhancedRTMP(handle, 0);

        lib_player_.SmartPlayerSetUrl(handle, playback_url);

        set(handle);

        return true;
    }

    private void SetPlayerParam(boolean is_hardware_decoder, boolean is_enable_hardware_render_mode, boolean is_mute)
    {
         Surface surface = null;
         int surface_codec_media_color_format = 0;

         if (view_ != null && view_ instanceof SurfaceView && ((SurfaceView) view_).getHolder() != null)
             surface = ((SurfaceView) view_).getHolder().getSurface();

         lib_player_.SetSurface(get(), surface, surface_codec_media_color_format, 0, 0);

        lib_player_.SmartPlayerSetRenderScaleMode(get(), 1);

        //int render_format = 1;
        //lib_player.SmartPlayerSetSurfaceRenderFormat(handle, render_format);

        //int is_enable_anti_alias = 1;
        //lib_player.SmartPlayerSetSurfaceAntiAlias(handle, is_enable_anti_alias);

        if (is_hardware_decoder && is_enable_hardware_render_mode) {
            lib_player_.SmartPlayerSetHWRenderMode(get(), 1);
        }

        lib_player_.SmartPlayerSetAudioOutputType(get(), 1);

        lib_player_.SmartPlayerSetMute(get(), is_mute ? 1 : 0);

        if (is_hardware_decoder) {
            int isSupportHevcHwDecoder = lib_player_.SetSmartPlayerVideoHevcHWDecoder(get(), 1);

            int isSupportH264HwDecoder = lib_player_.SetSmartPlayerVideoHWDecoder(get(), 1);

            Log.i(TAG, "isSupportH264HwDecoder: " + isSupportH264HwDecoder + ", isSupportHevcHwDecoder: " + isSupportHevcHwDecoder);
        }

        boolean isLowLatency = true;
        lib_player_.SmartPlayerSetLowLatencyMode(get(), isLowLatency ? 1 : 0);

        boolean is_flip_vertical = false;
        lib_player_.SmartPlayerSetFlipVertical(get(), is_flip_vertical ? 1 : 0);

        boolean is_flip_horizontal = false;
        lib_player_.SmartPlayerSetFlipHorizontal(get(), is_flip_horizontal ? 1 : 0);

        int rotate_degrees = 0;
        lib_player_.SmartPlayerSetRotation(get(), rotate_degrees);

        int curAudioVolume = 100;
        lib_player_.SmartPlayerSetAudioVolume(get(), curAudioVolume);
    }

    class EventHandleV2 implements NTSmartEventCallbackV2 {
        @Override
        public void onNTSmartEventCallbackV2(long handle, int id, long param1,
                                             long param2, String param3, String param4, Object param5) {

            if(event_listener_.get() != null)
            {
                event_listener_.get().onPlayerEventCallback(handle, id, param1, param2, param3, param4, param5);
            }
        }
    }

    public boolean SetMute(boolean is_mute) {
        if (!check_native_handle())
            return false;

        return OK == lib_player_.SmartPlayerSetMute(get(), is_mute? 1 : 0);
    }

    public boolean SetInputAudioVolume(int volume) {
        if (!check_native_handle())
            return false;

        return OK == lib_player_.SmartPlayerSetAudioVolume(get(), volume);
    }

    public boolean CaptureImage(int compress_format, int quality, String file_name, String user_data_string) {
        if (!check_native_handle())
            return false;

        return OK == lib_player_.CaptureImage(get(), compress_format, quality, file_name, user_data_string);
    }

    public boolean StartPlayer(boolean is_hardware_decoder, boolean is_enable_hardware_render_mode, boolean is_mute) {
        if (is_playing()) {
            Log.e(TAG, "already playing, native_handle:" + get());
            return false;
        }

        SetPlayerParam(is_hardware_decoder, is_enable_hardware_render_mode, is_mute);

        int ret = lib_player_.SmartPlayerStartPlay(get());
        if (ret != OK) {
            Log.e(TAG, "call StartPlay failed, native_handle:" + get() + ", ret:" + ret);
            return false;
        }

        write_lock_.lock();
        try {
            this.is_playing_ = true;
        } finally {
            write_lock_.unlock();
        }

        Log.i(TAG, "call StartPlayer OK, native_handle:" + get());
        return true;
    }

    public boolean StopPlayer() {
        if (!check_native_handle())
            return false;

        if (!is_playing()) {
            Log.w(TAG, "it's not playing, native_handle:" + get());
            return false;
        }

        boolean is_need_call = false;
        write_lock_.lock();
        try {
            if (this.is_playing_) {
                this.is_playing_ = false;
                is_need_call = true;
            }
        } finally {
            write_lock_.unlock();
        }

        if (is_need_call)
            lib_player_.SmartPlayerStopPlay(get());

        return true;
    }

    public boolean ConfigRecorderParam(String rec_dir, int file_max_size, int is_transcode_aac,
                                       int is_record_video, int is_record_audio) {

        if(!check_native_handle())
            return false;

        if (null == rec_dir || rec_dir.isEmpty())
            return false;

        int ret = lib_player_.SmartPlayerCreateFileDirectory(rec_dir);
        if (ret != 0) {
            Log.e(TAG, "Create record dir failed, path:" + rec_dir);
            return false;
        }

        if (lib_player_.SmartPlayerSetRecorderDirectory(get(), rec_dir) != 0) {
            Log.e(TAG, "Set record dir failed , path:" + rec_dir);
            return false;
        }

        if (lib_player_.SmartPlayerSetRecorderFileMaxSize(get(),file_max_size) != 0) {
            Log.e(TAG, "SmartPlayerSetRecorderFileMaxSize failed.");
            return false;
        }

        lib_player_.SmartPlayerSetRecorderAudioTranscodeAAC(get(), is_transcode_aac);

        // 更细粒度控制录像的, 一般情况无需调用
        lib_player_.SmartPlayerSetRecorderVideo(get(), is_record_video);
        lib_player_.SmartPlayerSetRecorderAudio(get(), is_record_audio);
        return true;
    }

    public boolean StartRecorder() {

        if (is_recording()) {
            Log.e(TAG, "already recording, native_handle:" + get());
            return false;
        }

        int ret = lib_player_.SmartPlayerStartRecorder(get());
        if (ret != OK) {
            Log.e(TAG, "call SmartPlayerStartRecorder failed, native_handle:" + get() + ", ret:" + ret);
            return false;
        }

        write_lock_.lock();
        try {
            this.is_recording_ = true;
        } finally {
            write_lock_.unlock();
        }

        Log.i(TAG, "call SmartPlayerStartRecorder OK, native_handle:" + get());
        return true;
    }

    public boolean StopRecorder() {
        if (!check_native_handle())
            return false;

        if (!is_recording()) {
            Log.w(TAG, "it's not recording, native_handle:" + get());
            return false;
        }

        boolean is_need_call = false;
        write_lock_.lock();
        try {
            if (this.is_recording_) {
                this.is_recording_ = false;
                is_need_call = true;
            }
        } finally {
            write_lock_.unlock();
        }

        if (is_need_call)
            lib_player_.SmartPlayerStopRecorder(get());

        return true;
    }

    private static boolean is_null_or_empty(String val) {
        return null == val || val.isEmpty();
    }
}

总结

以上是Android平台RTSP、RTMP直播播放模块对接说明，在此之前，我们针对SmartPlayer做过一些技术方面的探讨，从低延迟、音视频同步处理、多实例实现、解码效率、性能占用、解码后数据对接、实时截图、录像、网络抖动处理等各个维度，做过相关的技术分享。感兴趣的开发者，可以单独跟我们探讨。