一：引言

首先住册，今天有了一個(gè)想法拣帽。所以我決定制作一個(gè)VR播放器。純手工打造痰驱，24K金不敢說亡蓉，100%真心晕翠。

導(dǎo)入資源神馬的不說了，直接上代碼砍濒。而且也沒有人制作過淋肾，所以有壓力，不過動(dòng)力更大爸邢。（Ps:2016-12-31,12:31）

二：關(guān)于視頻播放要知道的一些事

視頻的幀率問題

三：Unity自帶了兩種播放API

1- MovieTexture(視頻紋理)

優(yōu)點(diǎn)：簡(jiǎn)單樊卓，高效的快速完成播放
缺點(diǎn)：此種方法無(wú)法應(yīng)用于移動(dòng)端。movietexture只能播放OGG和OVG

轉(zhuǎn)碼可以使用：
Theora Converter .NET

Paste_Image.png

ffmpeg將視頻轉(zhuǎn)成.ogv

ffmpeg - i “文件路徑/文件名.格式” -s 3000x1500(分辨率) -r 25 (幀率) -b：v 8782（碼率杠河，默認(rèn)單位為Bit/s） "輸出文件路徑/輸出文件名.格式" 

2-Handheld(標(biāo)準(zhǔn)的視頻播放接口)

缺點(diǎn)：
可操作性非常差碌尔，幾乎達(dá)不到我們想要的結(jié)果，而且也只支持全屏的普通視頻的播放券敌。
注意點(diǎn):
將視頻文件放置在Assets/StreamingAssets/路徑下唾戚，經(jīng)測(cè)試.MP4可用。

MoveTexture

1. 在游戲?qū)ο笾胁シ排惆祝秃帽仍谟螒蚴澜缰袆?chuàng)建一個(gè)Plane面對(duì)象，攝像機(jī)直直的照射在這個(gè)面上   
    在新建的一個(gè)plane平面膳灶，將其紋理綁定為電影紋理即可
    //設(shè)置當(dāng)前對(duì)象的主紋理為電影紋理
    renderer.material.mainTexture = movTexture;
    //設(shè)置電影紋理播放模式為循環(huán)
    movTexture.loop = true;
    并可通過
    movTexture.Play();
    movTexture.Pause();
    movTexture.Stop();
    mov Texturu.pitch = 1f 正常播放 2f兩倍速度
    來(lái)進(jìn)得播放控制咱士。
    此時(shí)可以通過直接縮放plane平面來(lái)達(dá)到縮放視頻的目的
    至于MovieTexture的賦值，在4.6x/5.0x版本上是無(wú)法通過將視頻拖入Project視頻來(lái)自動(dòng)造成紋理的

2. 在GUI層面播放轧钓。它其實(shí)和貼圖非常相像序厉，因?yàn)椴シ乓曨l用到的MovieTexture屬于貼圖Texture的子類。
    //繪制電影紋理
    GUI.DrawTexture (new Rect (0,0, Screen.width,Screen.height),movTexture,ScaleMode.StretchToFill); 
    播放視頻的大小是屏幕的寬高毕箍，如果想動(dòng)態(tài)的修改視頻的寬或高直接修改new Rect（）視頻顯示區(qū)域即可

Handheld

url_movie = "http://dl.nbrom.cn/17051/c3e408229342723fbdf62d0bcf1d549c.mp4?fsname=Criminal_Minds_S01E01.mp4";
Handheld.PlayFullScreenMovie(url_movie, Color.black, FullScreenMovieControlMode.Full);    
Handheld.PlayFullScreenMovie("test.mp4", Color.black, FullScreenMovieControlMode.CancelOnInput);
將視頻文件放置在Assets/StreamingAssets/路徑下
上面的方法在移動(dòng)端是邊下載邊播放網(wǎng)絡(luò)視頻的弛房，屬于在線播放，不好的地方就是而柑，再次觀看還需要再次加載文捶『沙眩可能在播放的時(shí)候判斷是否已下載到本地如果在本地就可以播放本地，如果沒有再?gòu)木W(wǎng)上下載到本地

注意：

1. 將視頻資源拷貝到外置存儲(chǔ)(如sd卡)粹排，通過外置存儲(chǔ)絕對(duì)路徑調(diào)用

string path = Application.persistentDataPath + "xxx.mp4";
 

2. 在Build Apk的時(shí)候种远，將視頻資源放在StreamingAssets子目錄下，通過視頻名字調(diào)用

string path = "xxx.mp4";

Api

四：視頻播放插件

第三方插件:進(jìn)行播放
GitHub有大量的視頻播放插件,自己去搜索.
EasyMovieTexture
MobileMovieTexture
MobilePlayer
Mobile movie texture for android :利用開源視頻編解碼庫(kù)Theora進(jìn)行視頻解碼顽耳，然后通過Unity Texture實(shí)現(xiàn)顯示坠敷。

1-使用插件

由于CardBoard中VR播放不能使用自帶的兩種方式所以下面的項(xiàng)目中，直接使用插件射富，此處不再啰嗦介紹

2-項(xiàng)目準(zhǔn)備

一段視頻膝迎，N張圖片，一個(gè)夢(mèng)幻的場(chǎng)景胰耗，各種好聽的音樂限次，那么導(dǎo)入資源。此處使用視頻插件Easy Movie Texture

資源可以加群494141729獲取

VR視頻播放

Paste_Image.png

Paste_Image.png

選中平臺(tái)設(shè)置

Paste_Image.png

3-播放代碼

關(guān)于視頻播放的代碼宪郊，設(shè)置暫停掂恕，停止，加載弛槐，全屏等
using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Test_Movie_Player : MonoBehaviour {
    public Text totalTime;
    public Text movieTime;
    public Slider movieSlider;
    public Material renderMaterial;
    public int movieSpeed = 1000;

    private MediaPlayerCtrl mediaPlayerCtrl;
    private RawImage movieRawImage;
    private Vector2 reducteOffsetMax;
    private bool isFinish = false;
    private bool isPlay = false;
    private bool isCtrlMovie = false;
    private int fastbackTemp = 0;
    private int totaltime = 0;

    void Start()
    {
        Init();
        mediaPlayerCtrl.OnEnd += OnEnd;
    }
    /// <summary>  
    /// 初始化函數(shù)  
    /// </summary>  
    public void Init()
    {
        mediaPlayerCtrl = this.transform.GetComponent<MediaPlayerCtrl>();
        movieRawImage = this.transform.GetComponent<RawImage>();
        mediaPlayerCtrl.m_bAutoPlay = false;
        if (movieRawImage.material == null)
            movieRawImage.material = renderMaterial;
        reducteOffsetMax = movieRawImage.rectTransform.offsetMax;
    }

    void Update()
    {
        UpdateMovieSlider();
        UpdateMovieTime();
        UpdateTotalTime();
    }
    /// <summary>  
    /// 更新視頻進(jìn)度條  
    /// </summary>  
    public void UpdateMovieSlider()
    {
        if (mediaPlayerCtrl.GetSeekPosition() != 0 && !isCtrlMovie)
        {
            float slider = (float)mediaPlayerCtrl.GetSeekPosition() / (float)mediaPlayerCtrl.GetDuration();
            movieSlider.value = slider;
        }
    }
    /// <summary>  
    /// 更新視頻總時(shí)間  
    /// </summary>  
    public void UpdateTotalTime()
    {
        if (this.totalTime.text != null && isPlay)
        {
            if (totaltime != mediaPlayerCtrl.GetDuration() / 1000)
            {
                totaltime = mediaPlayerCtrl.GetDuration() / 1000;
                int min = totaltime / 60;
                int seconds = totaltime - min * 60;
                this.totalTime.text = " / " + min + ":" + seconds;
            }
        }
    }
    /// <summary>  
    /// 更新視頻時(shí)間  
    /// </summary>  
    public void UpdateMovieTime()
    {
        if (this.movieTime.text != null && isPlay)
        {
            int movieTime = mediaPlayerCtrl.GetSeekPosition() / 1000;
            int min = movieTime / 60;
            int seconds = movieTime - min * 60;
            this.movieTime.text = min + ":" + seconds;
        }
    }
    /// <summary>  
    /// 視頻播放  
    /// </summary>  
    public void MoviePlay()
    {
        mediaPlayerCtrl.Play();
        isPlay = true;
        isFinish = false;
    }
    /// <summary>  
    /// 視頻暫停  
    /// </summary>  
    public void MoviePause()
    {
        isPlay = false;
        mediaPlayerCtrl.Pause();
    }
    /// <summary>  
    /// 視頻停止  
    /// </summary>  
    public void MovieStop()
    {
        isPlay = false;
        mediaPlayerCtrl.Stop();
    }
    /// <summary>  
    /// 讀取視頻  
    /// </summary>  
    /// <param name="namePtah">讀取視頻的路徑</param>  
    public void MovieLoad(string namePtah)
    {
        mediaPlayerCtrl.Load(namePtah);
        mediaPlayerCtrl.m_bAutoPlay = false;
        isPlay = false;
        isFinish = false;
    }
    /// <summary>  
    /// 視頻設(shè)置循環(huán)播放  
    /// </summary>  
    public void MovieLoop()
    {
        mediaPlayerCtrl.m_bLoop = !mediaPlayerCtrl.m_bLoop;
    }

    /// <summary>  
    /// 視頻全屏顯示  
    /// </summary>  
    public void OnClickFullScreen()
    {
        if (mediaPlayerCtrl.m_bFullScreen)
        {
            mediaPlayerCtrl.m_bFullScreen = false;
            movieRawImage.rectTransform.offsetMax = reducteOffsetMax;
            movieRawImage.rectTransform.offsetMin = -reducteOffsetMax;
        }
        else
        {
            mediaPlayerCtrl.m_bFullScreen = true;
            movieRawImage.rectTransform.offsetMax = new Vector2(0, 0);
            movieRawImage.rectTransform.offsetMin = new Vector2(0, 0);
        }
    }

    /// <summary>  
    /// 關(guān)閉視頻界面  
    /// </summary>  
    public void OnClickClose()
    {
        mediaPlayerCtrl.Stop();
        movieRawImage.gameObject.SetActive(false);
    }
    /// <summary>  
    /// 移動(dòng)視頻進(jìn)度條  
    /// </summary>  
    public void OnDragSlider()
    {
        if (!isPlay)
            return;
        int seekPos = (int)(movieSlider.value * mediaPlayerCtrl.GetDuration());
        mediaPlayerCtrl.SeekTo(seekPos);
    }
    /// <summary>  
    /// 按下視頻進(jìn)度條  
    /// </summary>  
    public void OnPoniterDownSlider()
    {
        if (!isPlay)
            return;
        MoviePause();
        isCtrlMovie = true;
        int seekPos = (int)(movieSlider.value * mediaPlayerCtrl.GetDuration());
        mediaPlayerCtrl.SeekTo(seekPos);
    }
    /// <summary>  
    /// 彈起視頻進(jìn)度條  
    /// </summary>  
    public void OnPoniterUpSlider()
    {
        if (!isPlay)
            return;
        MoviePlay();
        isCtrlMovie = false;
    }

    public bool GetIsFullScreen()
    {
        return mediaPlayerCtrl.m_bFullScreen;
    }

    public bool GetIsLoop()
    {
        return mediaPlayerCtrl.m_bLoop;
    }
    void OnEnd()
    {
        isFinish = true;
    } 
}

綁定事件

全景視頻播放

全景視頻跟著頭部移動(dòng)的方法懊亡，看到sphere對(duì)象上掛在了GvrViewer.cs腳本，然后把VRModelEnabled屬性設(shè)置為false乎串，這樣就調(diào)整配置文件就可以全景視頻跟著頭部移動(dòng)而觀看視頻效果了

調(diào)整配置文件

<?xml version="1.0" encoding="utf-8"?>  
<manifest  
    xmlns:android="http://schemas.android.com/apk/res/android"  
    package="com.unity3d.player"  
    android:installLocation="preferExternal"  
    android:theme="@android:style/Theme.NoTitleBar"  
    android:versionCode="1"  
    android:versionName="1.0">  
  <uses-sdk android:minSdkVersion="19" android:targetSdkVersion="22" />  
  <uses-feature android:name="android.hardware.camera" />  
  <supports-screens  
      android:smallScreens="true"  
      android:normalScreens="true"  
      android:largeScreens="true"  
      android:xlargeScreens="true"  
      android:anyDensity="true"/>  
  <uses-permission android:name="android.permission.INTERNET" />  
  <uses-permission android:name="android.permission.CAMERA" />  
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>  
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />   
  <uses-feature android:glEsVersion="0x00020000" />  
  <uses-feature android:name="android.hardware.sensor.accelerometer" android:required="true"/>  
  <uses-feature android:name="android.hardware.sensor.gyroscope" android:required="true"/>  
  <uses-permission android:name="android.permission.NFC"/>  
  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />  
  <uses-permission android:name="android.permission.INTERNET" />  
  
  <!-- VR feature tags. -->  
  <uses-feature android:name="android.software.vr.mode" android:required="false"/>  
  <uses-feature android:name="android.hardware.vr.high_performance" android:required="false"/>  
     
    <application  
        android:icon="@drawable/app_icon"  
        android:label="@string/app_name"  
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"  
        android:debuggable="false">  
        <activity android:name="com.unity3d.player.UnityPlayerNativeActivity"  
                  android:label="@string/app_name"  
                      android:screenOrientation="landscape"  
                     android:launchMode="singleTask"  
                  android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale"  
                  >  
            <intent-filter>  
                <action android:name="android.intent.action.MAIN" />  
                <category android:name="android.intent.category.LAUNCHER" />  
              <category android:name="com.google.intent.category.CARDBOARD" />  
            </intent-filter>  
            <meta-data android:name="unityplayer.UnityActivity" android:value="true" />  
            <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" />  
          <meta-data android:name="unityplayer.UnityActivity" android:value="true" />  
        </activity>  
        <activity android:name="com.unity3d.player.VideoPlayer"  
                  android:label="@string/app_name"  
                  android:screenOrientation="portrait"  
                  android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">  
        </activity>   
      <activity android:name="com.google.unity.GoogleUnityActivity"  
          android:label="@string/app_name"  
          android:screenOrientation="landscape"  
          android:launchMode="singleTask"  
          android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale">   
        <meta-data android:name="unityplayer.UnityActivity" android:value="true" />  
      </activity>  
      <meta-data android:name="IMMERSIVE_MODE" android:value="true" />  
        <!--  
            To support devices using the TI S3D library for stereo mode we must   
            add the following library.  
            Devices that require this are: ODG X6   
        -->  
        <uses-library android:name="com.ti.s3d" android:required="false" />  
        <!-- 
            To support the ODG R7 in stereo mode we must add the following library. 
        -->  
        <uses-library android:name="com.osterhoutgroup.api.ext" android:required="false" />  
    </application>  
     
    
</manifest>  
  
<!-- android:installLocation="preferExternal" -->  

參考資料：

http://blog.csdn.net/adambieber/article/details/52334280