ijkplayer 编译

编译可以参考官方说明

简要步骤说明：

将代码下载到本地

git clone https://github.com/Bilibili/ijkplayer

设定ndk环境

下载对应平台的ndk工具包，官网地址

设置ndk的编译环境，因为我使用的是mac，就直接

export ANDROID_NDK=/ndk-path

初始化ijkplayer为android编译环境

./init-android.sh

编译ffmpeg之前准备

因为ijkplayer还是依赖于ffmpeg的一些功能，所以在进行ijkplayer的编译之前，首先需要满足ffmpeg的编译条件。最主要的就是yasm的安装，以mac为例，安装yasm

brew install yasm

开始编译ffmpeg

cd android/contrib

./compile-ffmpeg.sh clean

./compile-ffmpeg.sh all

编译ijkplayer

./compile-ijk.sh all

ijkplayer 的使用

使用前的说明

在完成上面的编译过程之后，可以在ijkplayer中发现一个android工程，简要的目录如下：

+---/path-to-ijkplayer/android/ijkplayer

|

+---ijkplayer-arm64

|

+---ijkplayer-armv5

|

+---ijkplayer-armv7a

|

+---ijkplayer-x86

|

+---ijkplayer-x86-64

|

+---ijkplayer-java

|

+---ijkplayer-exo

|

+---tools

如上目录为ijkplayer在android平台上需要用到的库，从命名上可以看出，以上modules中包含了这几类：

ijkplayer-arm*和ijkplayer-x86*，实现了不同平台下的so库。

ijkplayer-java和ijkplayer-exo, 为封装好的ijkplayer的java层api。

tools，编译需要用到的脚本程序

如何使用

新建android工程，命名为：ijkplayer-demo。

讲上文中表示出来的文件夹全部拷贝到新建的android工程目录下。

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'

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

}

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')

}

给app添加权限

AndroidManifest.xml

```

app的布局文件

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">

android:layout_width="368dp"

android:layout_height="495dp"

tools:layout_editor_absoluteY="8dp"

tools:layout_editor_absoluteX="8dp">

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" />

android:id="@+id/show_screen"

android:layout_width="400dp"

android:layout_height="200dp"

android:layout_below="@+id/button_prepare"

/>

MainActivity代码

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();

}

};

}

到这里，就完成了一个最简单的ijkplayer的demo。剩下的就是认真看ijkplayer的实现了。