SurfaceProvider+Player视频播放开发过程分享 原创

发布于 2021-3-8 09:27
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1.视频播放的功能
显示效果:

  SurfaceProvider+Player视频播放开发过程分享-开源基础软件社区

点击图中文字跳转

  SurfaceProvider+Player视频播放开发过程分享-开源基础软件社区

部分代码如下:

Mainabilitysilce中

package com.example.jltflianxi.slice;

import com.example.jltflianxi.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.aafwk.content.Operation;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.app.Context;
import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;
import ohos.media.common.Source;
import ohos.media.player.Player;

import java.io.*;
import java.text.Format;
import java.util.jar.Manifest;

public class MainAbilitySlice extends AbilitySlice {

    static final HiLogLabel logLabel=new HiLogLabel(HiLog.LOG_APP,0x001010,"视频测试");

    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);


       Button button = (Button) findComponentById(ResourceTable.Id_jltf_btn);
       if (button !=null){
           HiLog.info(logLabel,"按键存在");
           button.setClickedListener(new Component.ClickedListener() {
               @Override
               public void onClick(Component component) {
                   HiLog.info(logLabel,"跳转开始");
                   Intent intent = new Intent();
                   Operation operation = (Operation) new Intent.OperationBuilder()
                                  .withAction("action.vedio_layout")
                                  .build();
                   intent.setOperation(operation);
                   startAbility(intent);
                   HiLog.info(logLabel,"跳转结束");
               }
           });
       }

    }


    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

vedioabilitysilce中

package com.example.jltflianxi.slice;

import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.DependentLayout;
import ohos.agp.components.surfaceprovider.SurfaceProvider;
import ohos.agp.graphics.Surface;
import ohos.agp.graphics.SurfaceOps;
import ohos.global.resource.RawFileDescriptor;
import com.example.jltflianxi.ResourceTable;
import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;
import ohos.media.common.Source;
import ohos.media.player.Player;

public class VideoAbilitySlice extends AbilitySlice {

    static final HiLogLabel logLabel=new HiLogLabel(HiLog.LOG_APP,0x001010,"视频测试");

    private static Player player;

    private SurfaceProvider sfProvider;

    @Override
    public void onStart(Intent intent) {

        super.onStart(intent);

        super.setUIContent(ResourceTable.Layout_vedio_layout);

        player=new Player(getContext());

        sfProvider=new SurfaceProvider(getContext());

        sfProvider.getSurfaceOps().get().addCallback(new VideoSurfaceCallback());

        sfProvider.pinToZTop(true);

        DependentLayout dependentLayout=(DependentLayout)findComponentById(ResourceTable.Id_vediolayout);

        if(dependentLayout!=null)

        {

            dependentLayout.addComponent(sfProvider);
        }

    }

    private void playLocalFile(Surface surface) {

        try {

            RawFileDescriptor filDescriptor = getResourceManager().getRawFileEntry("resources/rawfile/index1.mp4").openRawFileDescriptor();

           

config.json

"abilities": [
  {
    "skills": [
      {
        "entities": [
          "entity.system.home"
        ],
        "actions": [
          "action.system.home",
          "action.vedio_layout"
        ]
      }
    ],
    "orientation": "landscape",
    "visible" : true,
    "name": "com.example.jltflianxi.MainAbility",
    "icon": "$media:icon",
    "description": "$string:mainability_description",
    "label": "jltflianxi",
    "type": "page",
    "launchType": "standard"
  }
]

"actions": [
          "action.system.home",
          "action.vedio_layout"
        ]
添加

"action.vedio_layout"

Player
官方的一段案例

1. try (FileInputStream in = new FileInputStream(new File(PLAYER_TEST_FILE))) {

2. FileDescriptor fd = in.getFD();

3. Source source = new Source(fd);

4. Player impl = new Player();

5. impl.setSource(source);

6. impl.prepare();

7. impl.play();

8. } catch (IOException e) {

9. // ...

10. }

11. 

我们用的是SurfaceProvider+ Player 完成的播放
 

pause()              暂停播放。

getCurrentTime()     获取当前播放位置。

getDuration()         获取媒体文件总时长。

setPlaybackSpeed(float speed)   设置播放速度。

getPlaybackSpeed()              获取播放速度。

 

总结:播放本地的视频功能开发已经完成,但是一些小插件没有完成,比如进度条,暂停,播放时长与分布式特征的各项实现等。

 

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