安卓使用MediaRecorder实现录制视频

来源:互联网 发布:安东尼本内特体测数据 编辑:程序博客网 时间:2024/05/17 22:59

实现效果截图:




安卓使用MediaRecorder实现录制视频,设置视频和音频的来源,保存格式,录制质量和速率,并保存到内存中,

用SurfaceView展示画面。




Activity代码:

package com.example.android_vedioplayer_camera_recorder;import android.media.MediaRecorder;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;import android.view.SurfaceView;import android.view.View;import java.io.IOException;/** * Created by Administrator on 2017/2/22. */public class RecorderActivity extends AppCompatActivity {    private SurfaceView sv_media_recoder_surface;    private MediaRecorder mediaRecorder;    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_recorder);        sv_media_recoder_surface = (SurfaceView) findViewById(R.id.sv_media_recoder_surface);        //实例化        mediaRecorder = new MediaRecorder();    }    //开始播放    public void start(View view){        mediaRecorder.reset();        //设置视频和音频的来源        mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);        //设置保存的格式        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);        //设置编码格式        mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);        //设置速率        mediaRecorder.setVideoFrameRate(3);        //设置保存的路径        mediaRecorder.setOutputFile("mnt/sdcard/LuoMei_"+System.currentTimeMillis()+".mp4");        //将画面展示到SurfaceView        mediaRecorder.setPreviewDisplay(sv_media_recoder_surface.getHolder().getSurface());        try {            mediaRecorder.prepare();            mediaRecorder.start();        } catch (IOException e) {            e.printStackTrace();        }    }    //停止播放    public void stop(View view){        mediaRecorder.stop();    }}




layout.xml代码:

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="match_parent"    android:layout_height="match_parent">    <SurfaceView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/sv_media_recoder_surface"        />    <LinearLayout        android:layout_width="match_parent"        android:layout_alignParentBottom="true"        android:layout_height="wrap_content">        <Button            android:layout_width="0dp"            android:layout_height="wrap_content"            android:text="开始"            android:onClick="start"            android:layout_weight="1"            />        <Button            android:layout_width="0dp"            android:layout_height="wrap_content"            android:text="停止"            android:onClick="stop"            android:layout_weight="1"            />    </LinearLayout></RelativeLayout>



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