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#更新

最近在学习FFmpeg,撸了一个短视频编辑器Cut,有兴趣可以看看

录制出来的视频的大小还是比较大,但可以通过ffmpeg 来对视频压缩,

怎么压缩?

在合成ts后对视频进行了压缩,10s压缩后大概在2M内。压缩代码如下:


protected Boolean compress(boolean mergeFlag) {

		if (!mergeFlag) {
			return mergeFlag;
		}

		String cmd = "ffmpeg -y -i " + mMediaObject.getOutputTempVideoPath() + " -strict -2 -vcodec libx264 -preset ultrafast " +
				"-crf 25 -acodec aac -ar 44100 -ac 2 -b:a 96k -s 360x640 -aspect 9:16 " + mMediaObject.getOutputVideoPath();

		boolean compressFlag = UtilityAdapter.FFmpegRun("", cmd) == 0;

		File file = new File(mMediaObject.getOutputTempVideoPath());
		if(compressFlag){ //压缩成功删除临时文件
			if (file.exists()) {
				file.delete();
			}

			file = new File(mMediaObject.getTsPath());
			if (file.exists()) {
				file.delete();
			}

		}
		return compressFlag;

	}



-crf:这是最重要的一个选项,用于指定输出视频的质量,取值范围是0-51,默认值为23, 数字越小输出视频的质量越高。这个选项会直接影响到输出视频的码率。一般来说, 压制480p我会用20左右,压制720p我会用16-18,1080p我没尝试过。个人觉得, 一般情况下没有必要低于16。最好的办法是大家可以多尝试几个值,每个都压几分钟,看 看最后的输出质量和文件大小,自己再按需选择。

简介

基于VCamera,仿微信录制短视频

这里写图片描述

使用

  1. 在build.gradle,添加wechatRecoderVideoLibrary module 。

配置manifest

    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
  • 配置拍摄视频缓存路径
       // 设置拍摄视频缓存路径
        File dcim = Environment
                .getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        if (DeviceUtils.isZte()) {
            if (dcim.exists()) {
                VCamera.setVideoCachePath(dcim + "/recoder/");
            } else {
                VCamera.setVideoCachePath(dcim.getPath().replace("/sdcard/",
                        "/sdcard-ext/")
                        + "/recoder/");
            }
        } else {
            VCamera.setVideoCachePath(dcim + "/WeChatJuns/");
        }

//		VCamera.setVideoCachePath(FileUtils.getRecorderPath());
        // 开启log输出,ffmpeg输出到logcat
        VCamera.setDebugMode(true);
        // 初始化拍摄SDK,必须
        VCamera.initialize(this);
  • 注册activity
<application
    ...
   <activity android:name="com.maiml.wechatrecodervideolibrary.recoder.WechatRecoderActivity"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:hardwareAccelerated="true"
            android:launchMode="singleTop"
            android:screenOrientation="portrait"
            android:theme="@style/CameraTheme"
            />
</application
  • 调用 WechatRecoderActivity
   WechatRecoderActivity.launchActivity(MainActivity.this,REQ_CODE);

*在 onActivityResult Method 接收结果

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if(RESULT_OK == resultCode){

            if(requestCode == REQ_CODE){
                String videoPath = data.getStringExtra(WechatRecoderActivity.VIDEO_PATH);

                play(videoPath);
            }

        }
    }

##参数配置

###自定义dialog

拍摄完成需要对视频进行转码,转码过程中弹出的dialog。

让你的Activity implements OnDialogListener 例如:


 public class MainActivity extends AppCompatActivity implements OnDialogListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
		WechatRecoderActivity.launchActivity(MainActivity.this,REQ_CODE);
     }

    /**
     * 处理自定义Dialog 的显示
     * @param context 自定义dialog 依赖的Context,注意:自定义dialog的Context 需要使用这个
     *
     */
    @Override
    public void onShowDialog(Context context) {

    }
    /**
     * 处理自定义Dialog 的隐藏
     * @param context 自定义dialog 依赖的Context,注意:自定义dialog的Context 需要使用这个
     *
     */
    @Override
    public void onHideDialog(Context context) {

    }
}

###配置参数

name format description
recoderTimeMax integer 录制的最长时间
recoderTimeMin integer 录制的最短时间
titleBarCancelTextColor integer titleBar取消字体的颜色
pressBtnColor integer 按住拍字体的颜色
pressBtnBg integer 圆环的颜色
lowMinTimeProgressColor integer Progress小于录制最短时间的颜色
progressColor integer Progress大于录制最短时间的颜色

注意:颜色值均为 十六进制值,例如:0xFFFC2828

这里写图片描述

这里写图片描述

##自定义参数


	 RecoderAttrs attrs = new RecoderAttrs.Builder()
                            .pressBtnColorBg(0xff00ff00)
                            .titleBarCancelTextColor(0xff00ff00)
                            .pressBtnTextColor(0xff00ff00)
                            .build();
        WechatRecoderActivity.launchActivity(MainActivity.this,attrs,REQ_CODE);

##Thanks

VCamera

#关于我

简书maimingliang

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wxrecodervideo's Issues

请问怎么才能拿到首帧图额?

ThumbnailUtils.createVideoThumbnail( mMediaObject.getOutputVideoPath(), MediaStore.Video.Thumbnails.MINI_KIND);这个拿到的是null
mMediaObject.getOutputVideoThumbPath() 这个也拿不到图片,可以打印出地址但是没有图片。求帮助

andorid7.1弹框问题

android7.1老是弹出提示框 detected problems with app native libraries libutility.so:text relocations,
这个提示框怎么去掉呢

android 7.1

在7.1上报这种错,detected problems with app native libraries libutility.so:text relocations,但能正常运行,compilesdk已经改成了22

视频压缩

这个压缩处理时间有点长,能够优化一下吗?现在拍摄完之后大概需要6-8秒的时间。

导modle 进去出现了问题

java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.hsd.yixiuge-1/base.apk"],nativeLibraryDirectories=[/data/app/com.hsd.yixiuge-1/lib/arm64, /data/app/com.hsd.yixiuge-1/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libutility.so" 在application 初始化运行不了

录音问题

应用关闭后,录音还在,别的应用无法打开录音咋办?

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