JavaCV record video in Android - ffmpeg

Question

I want to record video quiet and without preview in Android. So I choice MediaRecorder but I could record only without preview but what make me crazy is that when MediaRecorder start or stop it will with a sound dee.... I try many methods about that . But I think it perhaps sth related to the OS of the mobile. So I try JavaCV because I also want to have a Live function in my app.
But JavaCV spent me to too much time to solve some strange problems because it's my first time to do sth about C++ src and video.
Just compile group: 'org.bytedeco', name: 'javacv-platform', version: '1.3' as the README.md ,I even can't build my apk.
Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK org/bytedeco/javacpp/macosx-x86_64/libusb-1.0.dylib
File1: /Users/wyx/.gradle/caches/modules-2/files-2.1/org.bytedeco.javacpp-presets/libfreenect/0.5.3-1.3/736d65a3ef042258429d8e7742128c411806b432/libfreenect-0.5.3-1.3-macosx-x86_64.jar
File2: /Users/wyx/.gradle/caches/modules-2/files-2.1/org.bytedeco.javacpp-presets/libdc1394/2.2.4-1.3/f1498dacc46162ab68faeb8d66cf02b96fe41c61/libdc1394-2.2.4-1.3-macosx-x86_64.jar
And then I modified it according this issuse
use this to repalce. It can build the apk. But the can't run.
android {
..............
packagingOptions {
exclude 'META-INF/services/javax.annotation.processing.Processor'
pickFirst 'META-INF/maven/org.bytedeco.javacpp-presets/opencv/pom.properties'
pickFirst 'META-INF/maven/org.bytedeco.javacpp-presets/opencv/pom.xml'
pickFirst 'META-INF/maven/org.bytedeco.javacpp-presets/ffmpeg/pom.properties'
pickFirst 'META-INF/maven/org.bytedeco.javacpp-presets/ffmpeg/pom.xml'
}
}
dependencies {
compile group: 'org.bytedeco', name: 'javacv', version: '1.3'
compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '3.2.1-1.3', classifier: 'android-x86'
compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '3.2.1-1.3', classifier: 'android-arm'
compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.1.0-1.3', classifier: 'android-x86'
compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.1.0-1.3', classifier: 'android-arm'
}
My demo code VideoService which will invoke in MainActivity
package com.fs.fs.api;
import com.fs.fs.App;
import com.fs.fs.utils.DateUtils;
import com.fs.fs.utils.FileUtils;
import org.bytedeco.javacpp.avcodec;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.FrameRecorder;
import java.util.Date;
/**
* Created by wyx on 2017/1/11.
*/
public class VideoService {
private FFmpegFrameRecorder mFrameRecorder;
private String path;
private VideoService() {
}
private static class SingletonHolder {
private static final VideoService INSTANCE = new VideoService();
}
public static VideoService getInstance() {
return SingletonHolder.INSTANCE;
}
public void startRecordVideo() {
String fileName = String.format("%s.%s", DateUtils.date2String(new Date(), "yyyyMMdd_HHmmss"), "mp4");
path = FileUtils.getExternalFullPath(App.getInstance(), fileName);
mFrameRecorder = new FFmpegFrameRecorder(path, 640, 480, 1);
mFrameRecorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
mFrameRecorder.setVideoOption("tune", "zerolatency");
mFrameRecorder.setVideoOption("preset", "ultrafast");
mFrameRecorder.setVideoOption("crf", "28");
mFrameRecorder.setVideoBitrate(300 * 1000);
mFrameRecorder.setFormat("mp4");
mFrameRecorder.setFrameRate(30);
mFrameRecorder.setAudioOption("crf", "0");
mFrameRecorder.setSampleRate(48 * 1000);
mFrameRecorder.setAudioBitrate(960 * 1000);
mFrameRecorder.setAudioCodec(avcodec.AV_CODEC_ID_AAC);
try {
mFrameRecorder.start();
} catch (FrameRecorder.Exception e) {
e.printStackTrace();
}
}
public void stop() {
if (mFrameRecorder != null) {
try {
mFrameRecorder.stop();
mFrameRecorder.release();
} catch (FrameRecorder.Exception e) {
e.printStackTrace();
}
mFrameRecorder = null;
}
}
}
MainActivity
package com.fs.fs.activity;
import android.app.Activity;
import android.os.Bundle;
import com.fs.fs.R;
import com.fs.fs.api.VideoService;
import static java.lang.Thread.sleep;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
VideoService.getInstance().startRecordVideo();
try {
sleep(10 * 1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
VideoService.getInstance().stop();
}
}
Error which make me want to cry.
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.fs.fs, PID: 30259
java.lang.NoClassDefFoundError: java.lang.ClassNotFoundException: org.bytedeco.javacpp.avutil
at org.bytedeco.javacpp.Loader.load(Loader.java:590)
at org.bytedeco.javacpp.Loader.load(Loader.java:530)
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1694)
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:149)
at com.fs.fs.api.VideoService.startRecordVideo(VideoService.java:34)
at com.fs.fs.activity.MainActivity.onCreate(MainActivity.java:75)
at android.app.Activity.performCreate(Activity.java:5304)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2331)
at android.app.ActivityThread.access$1000(ActivityThread.java:143)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5291)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: org.bytedeco.javacpp.avutil
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:251)
at org.bytedeco.javacpp.Loader.load(Loader.java:585)
at org.bytedeco.javacpp.Loader.load(Loader.java:530) 
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1694) 
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:149) 
at com.fs.fs.api.VideoService.startRecordVideo(VideoService.java:34) 
at com.fs.fs.activity.MainActivity.onCreate(MainActivity.java:75) 
at android.app.Activity.performCreate(Activity.java:5304) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2331) 
at android.app.ActivityThread.access$1000(ActivityThread.java:143) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5291) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.NoClassDefFoundError: org/bytedeco/javacpp/avutil
at java.lang.Class.classForName(Native Method) 
at java.lang.Class.forName(Class.java:251) 
at org.bytedeco.javacpp.Loader.load(Loader.java:585) 
at org.bytedeco.javacpp.Loader.load(Loader.java:530) 
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1694) 
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:149) 
at com.fs.fs.api.VideoService.startRecordVideo(VideoService.java:34) 
at com.fs.fs.activity.MainActivity.onCreate(MainActivity.java:75) 
at android.app.Activity.performCreate(Activity.java:5304) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2331) 
at android.app.ActivityThread.access$1000(ActivityThread.java:143) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5291) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.bytedeco.javacpp.avutil" on path: DexPathList[[zip file "/data/app/com.fs.fs-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.fs.fs-2, /vendor/lib, /system/lib, /data/datalib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at java.lang.Class.classForName(Native Method) 
at java.lang.Class.forName(Class.java:251) 
at org.bytedeco.javacpp.Loader.load(Loader.java:585) 
at org.bytedeco.javacpp.Loader.load(Loader.java:530) 
at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1694) 
at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:149) 
at com.fs.fs.api.VideoService.startRecordVideo(VideoService.java:34) 
at com.fs.fs.activity.MainActivity.onCreate(MainActivity.java:75) 
at android.app.Activity.performCreate(Activity.java:5304) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2331) 
at android.app.ActivityThread.access$1000(ActivityThread.java:143) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5291) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 
at dalvik.system.NativeStart.main(Native Method) 
So I want to know a comfortable method to achieve my goal : recode video quiet and without preview. And Live real time ?
I found ffmpeg4android is a prefect library to run ffmpeg command. I just use it to compress videos from MediaRecorder But I don't how to do use it to achieve my goal.