Using mediarecorder in Android for video recording (video recording)

Here is a test demo of your own, which is described in detail. Simple video recording function.

Package COM. video; import Java. io. ioexception; import android. app. activity; import android. content. PM. activityinfo; import android. graphics. pixelformat; import android. media. mediarecorder; import android. OS. bundle; import android. view. surfaceholder; import android. view. surfaceview; import android. view. view; import android. view. view. onclicklistener; import android. view. window; import android. view. windowmanager; Import android. widget. button;/*** Class Name: testbasicvideo <br> * class description: A simple recording video example <br> * PS: implement basic recording and saving files <br> ** @ Version 1.00 2011/09/21 * @ author codyy) peijiangping */public class testbasicvideo extends activity implements surfaceholder. callback {private button start; // The start recording button private button stop; // The stop recording button private mediarecorder; // The class private surfaceview of the recorded video ;/ /Display the video control // an interface used to display the video. I don't need it anymore, that is to say, if you want to use mediarecorder to record a video, you have to watch the video on the page .. Well, you need to implement the callback interface private surfaceholder for this interface; Public void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); requestwindowfeature (window. feature_no_title); // remove the title bar getwindow (). setflags (windowmanager. layoutparams. flag_fullscreen, windowmanager. layoutparams. flag_fullscreen); // sets full screen // sets setrequestedorientation (activityinfo. screen_orientation_landscape); // You can select to support the semi-transparent mode. Urfaceview activity. Getwindow (). setformat (pixelformat. translucent); setcontentview (R. layout. main); Init ();} private void Init () {start = (button) This. findviewbyid (R. id. start); stop = (button) This. findviewbyid (R. id. stop); start. setonclicklistener (New testvideolistener (); stop. setonclicklistener (New testvideolistener (); surfaceview = (surfaceview) This. findviewbyid (R. id. surfaceview); surfaceholder holder = surfaceview. getho Lder (); // get holderholder. addcallback (this); // The callback interface added by holder // settype must be set to avoid errors. holder. settype (surfaceholder. surface_type_push_buffers);} class testvideolistener implements onclicklistener {@ overridepublic void onclick (view v) {If (V = Start) {mediarecorder = new mediarecorder (); // create a mediarecorder object // set the recorded video source to camera (CAMERA) mediarecorder. setvideosource (mediarecorder. videosource. camera); // sets the video Encapsulation Format after recording. Three_gpp is 3GP. mpeg_4 is mp4mediarecorder. setoutputformat (mediarecorder. outputformat. three_gpp); // sets the recorded video encoding h263 hsf-mediarecorder. setvideoencoder (mediarecorder. videoencoder. h264); // sets the video recording resolution. It must be placed behind the encoding and format. Otherwise, the error mediarecorder. setvideosize (176,144) is returned. // you can specify the recorded video frame rate. It must be placed after the encoding and format. Otherwise, the error mediarecorder is reported. setvideoframerate (20); mediarecorder. setpreviewdisplay (surfaceholder. getsurface (); // sets the video file output path mediarecorder. setoutputfile ("/sdcard/love.3gp"); try {// prepare the recording mediarecorder. prepare (); // start recording mediarecorder. start ();} catch (illegalstateexception e) {// todo auto-generated catch blocke. printstacktrace ();} catch (ioexception e) {// todo auto-generated catch blocke. printstac Ktrace () ;}} if (V = stop) {If (mediarecorder! = NULL) {// stop recording mediarecorder. stop (); // release the resource mediarecorder. release (); mediarecorder = NULL ;}}}@ overridepublic void surfacechanged (surfaceholder holder, int format, int width, int height) {// set holder, this holder is the holder that was obtained in oncreat and assigned it to surfaceholdersurfaceholder = holder;} @ overridepublic void surfacecreated (surfaceholder holder) {// change holder, this holder is the holder that was obtained in oncreat and assigned it to surfaceholdersurfaceholder = holder;} @ overridepublic void surfacedestroyed (surfaceholder holder) {// when surfacedestroyed is used, the object is also set to nullsurfaceview = NULL; surfaceholder = NULL; mediarecorder = NULL ;}}

Main. xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="horizontal" >    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:layout_weight="1" >        <SurfaceView            android:id="@+id/surfaceview"            android:layout_width="fill_parent"            android:layout_height="fill_parent" />    </LinearLayout>    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:layout_weight="4"        android:gravity="center"        android:orientation="vertical" >        <Button            android:id="@+id/start"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:text="Start" />        <Button            android:id="@+id/stop"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:text="Stop" />    </LinearLayout></LinearLayout>

Androidmanifest. xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.video"    android:versionCode="1"    android:versionName="1.0" >    <application        android:icon="@drawable/icon"        android:label="@string/app_name" >        <activity            android:label="@string/app_name"            android:name=".TestBasicVideo" >            <intent-filter >                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    <uses-sdk android:minSdkVersion="8" />    <uses-permission android:name="android.permission.CAMERA" >    </uses-permission>    <uses-permission android:name="android.permission.RECORD_AUDIO" >    </uses-permission>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >    </uses-permission></manifest>