[流媒體]ijkplayer 播放器，android平臺使用說明

Me_Kun發表於2019-01-23
播放器Android

ijkplayer github 地址

ijkplayer 編譯

編譯可以參考官方說明

簡要步驟說明：

  1. 將程式碼下載到本地
git clone https://github.com/Bilibili/ijkplayer

  1. 設定ndk環境

    1. 下載對應平臺的ndk工具包，官網地址

    2. 設定ndk的編譯環境，因為我使用的是mac，就直接

      export ANDROID_NDK=/ndk-path

  2. 初始化ijkplayer為android編譯環境

    ./init-android.sh

  3. 編譯ffmpeg之前準備
    因為ijkplayer還是依賴於ffmpeg的一些功能，所以在進行ijkplayer的編譯之前，首先需要滿足ffmpeg的編譯條件。最主要的就是yasm的安裝，以mac為例，安裝yasm

    brew install yasm

  4. 開始編譯ffmpeg

    cd android/contrib
./compile-ffmpeg.sh clean
./compile-ffmpeg.sh all

  5. 編譯ijkplayer

    ./compile-ijk.sh all

ijkplayer 的使用

使用前的說明

在完成上面的編譯過程之後，可以在ijkplayer中發現一個android工程，簡要的目錄如下：

+---/path-to-ijkplayer/android/ijkplayer
    |
    +---ijkplayer-arm64
    |
    +---ijkplayer-armv5
    |
    +---ijkplayer-armv7a
    |
    +---ijkplayer-x86
    |
    +---ijkplayer-x86-64
    |
    +---ijkplayer-java
    |
    +---ijkplayer-exo
    |
    +---tools

如上目錄為ijkplayer在android平臺上需要用到的庫，從命名上可以看出，以上modules中包含了這幾類：

  1. ijkplayer-arm*和ijkplayer-x86*，實現了不同平臺下的so庫。
  2. ijkplayer-java和ijkplayer-exo, 為封裝好的ijkplayer的java層api。
  3. tools，編譯需要用到的指令碼程式

如何使用

  1. 新建android工程，命名為：ijkplayer-demo。
  2. 講上文中表示出來的資料夾全部拷貝到新建的android工程目錄下。

  3. 修改新建工程中的settings.gradle:

    include `:ijkplayer-armv5`, `:ijkplayer-x86_64`
include `:ijkplayer-armv7a`
include `:ijkplayer-arm64`
include `:ijkplayer-x86`

include `:ijkplayer-java`
include `:ijkplayer-exo`

include `:app`

  4. 修改/path-to-ijkplayer-demp/build.gradle

    // Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath `com.android.tools.build:gradle:2.3.3`

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files

    }
}

allprojects {
    repositories {
        jcenter()
    }
}

ext {
    compileSdkVersion = 23
    buildToolsVersion = "23.0.3"

    targetSdkVersion = 23

    versionCode = 800000
    versionName = "0.8.0"
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

  5. 修改/path-to-ijkplayer-demp/app/build.gradle

    apply plugin: `com.android.application`

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.1"
    defaultConfig {
        applicationId "com.test.ijkplayer.hankun.ijkplayer_test"
        minSdkVersion 21
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile(`proguard-android.txt`), `proguard-rules.pro`
        }
    }
}

dependencies {
    compile fileTree(include: [`*.jar`], dir: `libs`)
    androidTestCompile(`com.android.support.test.espresso:espresso-core:2.2.2`, {
        exclude group: `com.android.support`, module: `support-annotations`
    })
    compile `com.android.support:appcompat-v7:25.1.1`
    compile `com.android.support.constraint:constraint-layout:1.0.2`
    testCompile `junit:junit:4.12`

    compile project(`:ijkplayer-java`)

    compile project(`:ijkplayer-arm64`)
    compile project(`:ijkplayer-armv5`)
    compile project(`:ijkplayer-armv7a`)
    compile project(`:ijkplayer-x86`)
    compile project(`:ijkplayer-x86_64`)
}

  6. 給app新增許可權

    AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
```

  1. app的佈局檔案

    <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.test.ijkplayer.hankun.ijkplayer_test.MainActivity">
    <RelativeLayout
        android:layout_width="368dp"
        android:layout_height="495dp"
        tools:layout_editor_absoluteY="8dp"
        tools:layout_editor_absoluteX="8dp">

        <Button
            android:id="@+id/button_prepare"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="start"
            android:layout_alignParentTop="true"
            android:layout_alignParentStart="true" />

        <TextureView
            android:id="@+id/show_screen"
            android:layout_width="400dp"
            android:layout_height="200dp"
            android:layout_below="@+id/button_prepare"
            />
    </RelativeLayout>

</android.support.constraint.ConstraintLayout>

  2. MainActivity程式碼

    package com.test.ijkplayer.hankun.ijkplayer_test;

import android.content.Context;
import android.graphics.SurfaceTexture;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.widget.Button;

import tv.danmaku.ijk.media.player.IMediaPlayer;
import tv.danmaku.ijk.media.player.IjkMediaPlayer;

public class MainActivity extends AppCompatActivity {

    private String source_url = "rtsp://192.168.1.106:8554/test.mkv";
    private Context _ctx = this;
    public IjkMediaPlayer player = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        player = new IjkMediaPlayer();

        TextureView tv = (TextureView)findViewById(R.id.show_screen);
        tv.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                try {
                    player.setSurface(new Surface(surface));
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                return false;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });

        Button btn_prepare = (Button) findViewById(R.id.button_prepare);
        btn_prepare.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // init player
                IjkMediaPlayer.loadLibrariesOnce(null);
                IjkMediaPlayer.native_profileBegin("libijkplayer.so");

                player.setOnPreparedListener(mPreparedListener);
                try {
                    player.setDataSource(_ctx, Uri.parse(source_url));
                    player.prepareAsync();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });

    }

    IMediaPlayer.OnPreparedListener mPreparedListener = new IMediaPlayer.OnPreparedListener() {
        @Override
        public void onPrepared(IMediaPlayer mp) {
            player.start();
        }
    };

}

到這裡，就完成了一個最簡單的ijkplayer的demo。剩下的就是認真看ijkplayer的實現了。

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