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- package com.example.camerax
- import android.Manifest
- import android.annotation.SuppressLint
- import android.app.ProgressDialog
- import android.content.ContentValues
- import android.content.pm.PackageManager
- import android.os.Build
- import android.os.Bundle
- import android.os.Environment
- import android.os.Handler
- import android.os.HandlerThread
- import android.os.SystemClock
- import android.provider.MediaStore
- import android.util.Log
- import android.util.Size
- import android.view.Surface
- import android.view.Surface.ROTATION_0
- import android.view.Surface.ROTATION_180
- import android.view.View
- import android.widget.Chronometer
- import android.widget.Toast
- import androidx.appcompat.app.AppCompatActivity
- import androidx.camera.core.Camera
- import androidx.camera.core.CameraSelector
- import androidx.camera.core.ImageCapture
- import androidx.camera.core.ImageCaptureException
- import androidx.camera.core.Preview
- import androidx.camera.lifecycle.ProcessCameraProvider
- import androidx.camera.video.MediaStoreOutputOptions
- import androidx.camera.video.Quality
- import androidx.camera.video.QualitySelector
- import androidx.camera.video.Recorder
- import androidx.camera.video.Recording
- import androidx.camera.video.VideoCapture
- import androidx.camera.video.VideoRecordEvent
- import androidx.core.app.ActivityCompat
- import androidx.core.content.ContextCompat
- import androidx.core.content.PermissionChecker
- import com.example.camerax.databinding.ActivityMainBinding
- import com.otaliastudios.transcoder.Transcoder
- import com.otaliastudios.transcoder.TranscoderListener
- import com.otaliastudios.transcoder.TranscoderOptions
- import com.otaliastudios.transcoder.common.TrackStatus
- import com.otaliastudios.transcoder.strategy.DefaultAudioStrategy
- import com.otaliastudios.transcoder.strategy.DefaultVideoStrategy
- import com.otaliastudios.transcoder.strategy.TrackStrategy
- import com.otaliastudios.transcoder.validator.DefaultValidator
- import org.mp4parser.muxer.Movie
- import org.mp4parser.muxer.Track
- import org.mp4parser.muxer.builder.DefaultMp4Builder
- import org.mp4parser.muxer.container.mp4.MovieCreator
- import org.mp4parser.muxer.tracks.AppendTrack
- import java.io.File
- import java.io.FileOutputStream
- import java.text.SimpleDateFormat
- import java.util.Locale
- import java.util.concurrent.ExecutorService
- import java.util.concurrent.Executors
- import java.util.concurrent.Future
- class MainActivity : AppCompatActivity() {
- private var isFront: Boolean = false
- private lateinit var mainBinding: ActivityMainBinding
- private var mIsVideoRecording: Boolean = false
- private var mImageCapture: ImageCapture? = null
- private lateinit var mImageCaptureExecutor: ExecutorService
- private lateinit var mCameraSelector:CameraSelector
- private lateinit var mCameraSelectorFrontCam:CameraSelector
- private lateinit var mCameraSelectorBackCam:CameraSelector
- private var mVideoCapture: VideoCapture<Recorder>? = null
- private var mVideoCaptureFrontCam: VideoCapture<Recorder>? = null
- private var mVideoCaptureBackCam: VideoCapture<Recorder>? = null
- private var mRecording: Recording? = null
- private var mRecordingFrontCam: Recording? = null
- private var mRecordingBackCam: Recording? = null
- private var quality = Quality.HD
- private val qualitySelector = QualitySelector.from(quality)
- private var recorderBuilder = Recorder.Builder()
- private var recorder = Recorder.Builder().build()
- private var recorderFrontCam = Recorder.Builder().build()
- private var recorderBackCam = Recorder.Builder().build()
- private var mIsVideoPaused: Boolean = false
- private lateinit var mChronometer: Chronometer
- private var isFlashOn: Boolean = false
- private lateinit var camera: Camera
- private var mIsCameraSwitched: Boolean = false
- private lateinit var mVideoFileList: MutableList<File>
- private lateinit var progressDialogue: ProgressDialog
- private var timeWhenPaused: Long = 0
- private var cameraSwitchCount:Int = 0
- private var mBackgroundThreadHandler: HandlerThread? = null
- private var mBackgroundHandler: Handler? = null
- private var mTranscodeFuture: Future<Void>? = null
- private val mTranscodeVideoStrategy: TrackStrategy? = null
- private val mTranscodeAudioStrategy: TrackStrategy? = null
- private var outputFile = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES), "merged_video.mp4")
- private var rotatedFile = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES), "Merged_VIDEO.mp4")
- private lateinit var mScreenSize: Size
- override fun onCreate(savedInstanceState: Bundle?) {
- super.onCreate(savedInstanceState)
- mainBinding = ActivityMainBinding.inflate(layoutInflater)
- setContentView(mainBinding.root)
- mImageCaptureExecutor = Executors.newSingleThreadExecutor()
- progressDialogue = ProgressDialog(this)
- mVideoFileList = mutableListOf()
- mChronometer = mainBinding.chronometer
- mChronometer.visibility = View.GONE
- mainBinding.ivPauseResume.visibility = View.GONE
- recorderBuilder.setQualitySelector(qualitySelector)
- mCameraSelectorFrontCam = CameraSelector.DEFAULT_FRONT_CAMERA
- mCameraSelectorBackCam = CameraSelector.DEFAULT_BACK_CAMERA
- checkPermissions()
- mainBinding.ivStartStop.setOnClickListener {
- if (mIsVideoRecording) {
- mainBinding.ivTakePicture.visibility = View.VISIBLE
- mIsVideoRecording = false
- cameraSwitchCount = 0
- stopRecordingFrontCam()
- } else {
- mainBinding.ivTakePicture.visibility = View.GONE
- mIsVideoRecording = true
- startRecordingVideoBackCam()
- }
- }
- timeWhenPaused = 0
- mainBinding.ivPauseResume.setOnClickListener {
- if (mIsVideoPaused) {
- mIsVideoPaused = false
- mRecording!!.resume()
- } else {
- mIsVideoPaused = true
- mRecording!!.pause()
- }
- }
- mainBinding.ivSwitchCamera.setOnClickListener {
- mIsCameraSwitched = true
- cameraSwitchCount++
- if (mIsVideoRecording) {
- stopRecordingBackCam()
- switchCamera()
- startRecordingVideoFrontCam()
- } else {
- switchCamera()
- }
- }
- mainBinding.ivTakePicture.setOnClickListener {
- takePhoto() // it will also save the photo
- }
- mainBinding.ivFlash.setOnClickListener {
- onFlashButtonClicked()
- }
- }
- private fun stopRecordingFrontCam() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_start_video_icon)
- mRecordingFrontCam!!.stop()
- mChronometer.stop()
- mChronometer.visibility = View.GONE
- if(!mIsVideoRecording) {
- mainBinding.ivPauseResume.visibility = View.GONE
- startBackCamera()
- }
- }
- private fun stopRecordingBackCam() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_start_video_icon)
- mRecordingBackCam!!.stop()
- mChronometer.stop()
- mChronometer.visibility = View.GONE
- if(!mIsVideoRecording) {
- mainBinding.ivPauseResume.visibility = View.GONE
- startBackCamera()
- }
- }
- /**
- * this method is responsible for the switch of the camera
- */
- private fun switchCamera() {
- if ( mCameraSelector == CameraSelector.DEFAULT_BACK_CAMERA) {
- camera.cameraControl.enableTorch(false)
- mCameraSelector = CameraSelector.DEFAULT_FRONT_CAMERA
- isFront = true
- mainBinding.ivFlash.setBackgroundResource(R.drawable.ic_flash_off_icon)
- startFrontCamera()
- } else {
- mCameraSelector = CameraSelector.DEFAULT_BACK_CAMERA
- startBackCamera()
- }
- //startCamera()
- }
- /**
- * this method will be invoked on click of flash button and turnOn/turnOff flash light accordingly
- */
- private fun onFlashButtonClicked() {
- if(camera.cameraInfo.hasFlashUnit()) {
- if (isFlashOn) {
- isFlashOn = false
- mainBinding.ivFlash.setBackgroundResource(R.drawable.ic_flash_off_icon)
- camera.cameraControl.enableTorch(isFlashOn)
- } else {
- isFlashOn = true
- mainBinding.ivFlash.setBackgroundResource(R.drawable.ic_flash_icon)
- camera.cameraControl.enableTorch(isFlashOn)
- }
- } else {
- isFlashOn = false
- mainBinding.ivFlash.setBackgroundResource(R.drawable.ic_flash_off_icon)
- Toast.makeText(this, "Flash is not available", Toast.LENGTH_SHORT).show()
- }
- }
- /**
- * this method will start the camera preview
- */
- @SuppressLint("RestrictedApi")
- private fun startCamera() {
- mVideoCapture = VideoCapture.withOutput(recorder)
- val preview = Preview.Builder()
- .setTargetRotation(ROTATION_0)
- .build()
- .also {
- it.setSurfaceProvider(mainBinding.cameraPreview.surfaceProvider)
- }
- val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
- recorder = Recorder.Builder().build()
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- mVideoCapture!!.targetRotation = preview.targetRotation
- cameraProviderFuture.addListener({
- val cameraProvider = cameraProviderFuture.get()
- mImageCapture = ImageCapture.Builder()
- .setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
- .build()
- try {
- cameraProvider.unbindAll()
- camera = cameraProvider.bindToLifecycle(this, mCameraSelector,mImageCapture,mVideoCapture,preview)
- mScreenSize = QualitySelector.getResolution(camera.cameraInfo, Quality.HD)!!
- } catch (e: Exception) {
- Log.d("MainActivity", "Use case binding failed")
- }
- }, ContextCompat.getMainExecutor(this))
- }
- fun startFrontCamera() {
- mVideoCaptureFrontCam = VideoCapture.withOutput(recorderFrontCam)
- val preview = Preview.Builder()
- .build()
- .also {
- it.setSurfaceProvider(mainBinding.cameraPreview.surfaceProvider)
- }
- val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
- if (mIsCameraSwitched) {
- recorderFrontCam = Recorder.Builder().build()
- }
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- //mVideoCaptureFrontCam!!.targetRotation = ROTATION_180
- cameraProviderFuture.addListener({
- val cameraProvider = cameraProviderFuture.get()
- // mImageCapture = ImageCapture.Builder()
- // .setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
- // .build()
- try {
- cameraProvider.unbindAll()
- camera = cameraProvider.bindToLifecycle(this, mCameraSelectorFrontCam,mVideoCaptureFrontCam,preview)
- mScreenSize = QualitySelector.getResolution(camera.cameraInfo, Quality.HD)!!
- } catch (e: Exception) {
- Log.d("MainActivity", "Use case binding failed")
- }
- }, ContextCompat.getMainExecutor(this))
- }
- fun startBackCamera() {
- mVideoCaptureBackCam = VideoCapture.withOutput(recorderBackCam)
- val preview = Preview.Builder()
- .build()
- .also {
- it.setSurfaceProvider(mainBinding.cameraPreview.surfaceProvider)
- }
- val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
- if (mIsCameraSwitched){
- recorderBackCam = Recorder.Builder().build()
- }
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- // mVideoCaptureBackCam!!.targetRotation = ROTATION_180
- cameraProviderFuture.addListener({
- val cameraProvider = cameraProviderFuture.get()
- try {
- cameraProvider.unbindAll()
- camera = cameraProvider.bindToLifecycle(this, mCameraSelectorBackCam,mVideoCaptureBackCam,preview)
- mScreenSize = QualitySelector.getResolution(camera.cameraInfo, Quality.HD)!!
- } catch (e: Exception) {
- Log.d("MainActivity", "Use case binding failed")
- }
- }, ContextCompat.getMainExecutor(this))
- }
- /**
- * this method will take the photo and save it to Gallery
- */
- private fun takePhoto() {
- mImageCapture?.let{
- val imageFileName = SimpleDateFormat(FILENAME_FORMAT, Locale.US).format(System.currentTimeMillis())
- val contentValues = ContentValues().apply {
- put(MediaStore.MediaColumns.DISPLAY_NAME, imageFileName)
- put(MediaStore.MediaColumns.MIME_TYPE, "image/jpeg")
- if(Build.VERSION.SDK_INT > Build.VERSION_CODES.P) {
- put(MediaStore.Images.Media.RELATIVE_PATH, "Pictures/CameraX-Image")
- }
- }
- val outputFileOptions = ImageCapture.OutputFileOptions
- .Builder(contentResolver, MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues
- ).build()
- it.takePicture(
- outputFileOptions,
- mImageCaptureExecutor,
- object : ImageCapture.OnImageSavedCallback {
- override fun onImageSaved(outputFileResults: ImageCapture.OutputFileResults){
- startCamera()
- }
- override fun onError(exception: ImageCaptureException) {
- Toast.makeText(
- mainBinding.root.context,
- "Error occurred in taking photo",
- Toast.LENGTH_LONG
- ).show()
- Log.d("MainActivity", "Error taking photo:$exception")
- }
- })
- Toast.makeText( this@MainActivity , "The image has been saved to Gallery", Toast.LENGTH_SHORT).show()
- }
- }
- /**
- * this method will start the recording of video
- */
- private fun startRecordingVideo() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_stop_video_icon)
- mVideoCapture!!.let {
- try {
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- val contentValues = ContentValues().apply {
- put(MediaStore.MediaColumns.DISPLAY_NAME, "VID_${System.currentTimeMillis()}")
- put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4")
- }
- val mediaStoreOutputOptions = MediaStoreOutputOptions
- .Builder(contentResolver, MediaStore.Video.Media.EXTERNAL_CONTENT_URI)
- .setContentValues(contentValues)
- .build()
- mRecording = mVideoCapture!!.output
- .prepareRecording(this, mediaStoreOutputOptions)
- .apply {
- // Enable Audio for recording
- if (PermissionChecker.checkSelfPermission(this@MainActivity, Manifest.permission.RECORD_AUDIO) ==
- PermissionChecker.PERMISSION_GRANTED ) {
- withAudioEnabled()
- }
- }
- .start(ContextCompat.getMainExecutor(this)) { recordEvent ->
- when(recordEvent) {
- is VideoRecordEvent.Start -> {
- mainBinding.ivPauseResume.visibility = View.VISIBLE
- mChronometer.visibility = View.VISIBLE
- mChronometer.base = SystemClock.elapsedRealtime()
- mChronometer.start()
- }
- is VideoRecordEvent.Pause -> {
- mIsVideoPaused = true
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_resume_icon)
- timeWhenPaused = mChronometer.base - SystemClock.elapsedRealtime()
- mChronometer.stop()
- }
- is VideoRecordEvent.Finalize -> {
- if (!recordEvent.hasError()) {
- val savedUri = recordEvent.outputResults.outputUri
- if (savedUri != null) {
- val projection = arrayOf(MediaStore.Video.Media.DATA)
- val cursor = contentResolver.query(savedUri, projection, null, null, null)
- cursor?.use {
- if (it.moveToFirst()) {
- val filePath = it.getString(it.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))
- val videoFile = File(filePath)
- if(videoFile.exists()) {
- mVideoFileList.add(videoFile)
- Toast.makeText(this, "File Saved", Toast.LENGTH_SHORT).show()
- }
- }
- }
- }
- if(!mIsVideoRecording){
- // mergeVideosUsingTranscoder(mVideoFileList)
- mergeVideos(mVideoFileList)
- }
- } else {
- mRecording?.close()
- mRecording = null
- Log.e("MainActivity", "Video capture ends with error: ${recordEvent.error}")
- }
- }
- is VideoRecordEvent.Resume -> {
- mIsVideoPaused = false
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_pause_icon)
- mChronometer.base = SystemClock.elapsedRealtime() + timeWhenPaused
- mChronometer.start()
- }
- }
- }
- } catch (e: Exception) {
- e.printStackTrace()
- }
- }
- }
- private fun startRecordingVideoFrontCam() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_stop_video_icon)
- mVideoCaptureFrontCam!!.let {
- try {
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- val contentValues = ContentValues().apply {
- put(MediaStore.MediaColumns.DISPLAY_NAME, "VID_${System.currentTimeMillis()}")
- put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4")
- }
- val mediaStoreOutputOptions = MediaStoreOutputOptions
- .Builder(contentResolver, MediaStore.Video.Media.EXTERNAL_CONTENT_URI)
- .setContentValues(contentValues)
- .build()
- mVideoCaptureFrontCam!!.targetRotation = ROTATION_0
- mRecordingFrontCam = mVideoCaptureFrontCam!!.output
- .prepareRecording(this, mediaStoreOutputOptions)
- .apply {
- // Enable Audio for recording
- if (PermissionChecker.checkSelfPermission(this@MainActivity, Manifest.permission.RECORD_AUDIO) ==
- PermissionChecker.PERMISSION_GRANTED ) {
- withAudioEnabled()
- }
- }
- .start(ContextCompat.getMainExecutor(this)) { recordEvent ->
- when(recordEvent) {
- is VideoRecordEvent.Start -> {
- mainBinding.ivPauseResume.visibility = View.VISIBLE
- mChronometer.visibility = View.VISIBLE
- mChronometer.base = SystemClock.elapsedRealtime()
- mChronometer.start()
- }
- is VideoRecordEvent.Pause -> {
- mIsVideoPaused = true
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_resume_icon)
- timeWhenPaused = mChronometer.base - SystemClock.elapsedRealtime()
- mChronometer.stop()
- }
- is VideoRecordEvent.Finalize -> {
- if (!recordEvent.hasError()) {
- val savedUri = recordEvent.outputResults.outputUri
- if (savedUri != null) {
- val projection = arrayOf(MediaStore.Video.Media.DATA)
- val cursor = contentResolver.query(savedUri, projection, null, null, null)
- cursor?.use {
- if (it.moveToFirst()) {
- val filePath = it.getString(it.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))
- val videoFile = File(filePath)
- if(videoFile.exists()) {
- mVideoFileList.add(videoFile)
- Toast.makeText(this, "File Saved", Toast.LENGTH_SHORT).show()
- }
- }
- }
- }
- if(!mIsVideoRecording){
- // mergeVideosUsingTranscoder(mVideoFileList)
- mergeVideos(mVideoFileList)
- }
- } else {
- mRecordingFrontCam?.close()
- mRecording = null
- Log.e("MainActivity", "Video capture ends with error: ${recordEvent.error}")
- }
- }
- is VideoRecordEvent.Resume -> {
- mIsVideoPaused = false
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_pause_icon)
- mChronometer.base = SystemClock.elapsedRealtime() + timeWhenPaused
- mChronometer.start()
- }
- }
- }
- } catch (e: Exception) {
- e.printStackTrace()
- }
- }
- }
- private fun startRecordingVideoBackCam() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_stop_video_icon)
- mVideoCaptureBackCam!!.let {
- try {
- if (ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.CAMERA
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.WRITE_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.READ_EXTERNAL_STORAGE
- ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(
- this,
- Manifest.permission.RECORD_AUDIO
- ) != PackageManager.PERMISSION_GRANTED
- ) {
- ActivityCompat.requestPermissions(
- this,
- arrayOf(
- Manifest.permission.CAMERA,
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE,
- Manifest.permission.RECORD_AUDIO
- ),
- REQUEST_CAMERA_PERMISSION
- )
- return
- }
- val contentValues = ContentValues().apply {
- put(MediaStore.MediaColumns.DISPLAY_NAME, "VID_${System.currentTimeMillis()}")
- put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4")
- }
- val mediaStoreOutputOptions = MediaStoreOutputOptions
- .Builder(contentResolver, MediaStore.Video.Media.EXTERNAL_CONTENT_URI)
- .setContentValues(contentValues)
- .build()
- mRecordingBackCam = mVideoCaptureBackCam!!.output
- .prepareRecording(this, mediaStoreOutputOptions)
- .apply {
- // Enable Audio for recording
- if (PermissionChecker.checkSelfPermission(this@MainActivity, Manifest.permission.RECORD_AUDIO) ==
- PermissionChecker.PERMISSION_GRANTED ) {
- withAudioEnabled()
- }
- }
- .start(ContextCompat.getMainExecutor(this)) { recordEvent ->
- when(recordEvent) {
- is VideoRecordEvent.Start -> {
- mainBinding.ivPauseResume.visibility = View.VISIBLE
- mChronometer.visibility = View.VISIBLE
- mChronometer.base = SystemClock.elapsedRealtime()
- mChronometer.start()
- }
- is VideoRecordEvent.Pause -> {
- mIsVideoPaused = true
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_resume_icon)
- timeWhenPaused = mChronometer.base - SystemClock.elapsedRealtime()
- mChronometer.stop()
- }
- is VideoRecordEvent.Finalize -> {
- if (!recordEvent.hasError()) {
- val savedUri = recordEvent.outputResults.outputUri
- if (savedUri != null) {
- val projection = arrayOf(MediaStore.Video.Media.DATA)
- val cursor = contentResolver.query(savedUri, projection, null, null, null)
- cursor?.use {
- if (it.moveToFirst()) {
- val filePath = it.getString(it.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))
- val videoFile = File(filePath)
- if(videoFile.exists()) {
- mVideoFileList.add(videoFile)
- Toast.makeText(this, "File Saved", Toast.LENGTH_SHORT).show()
- }
- }
- }
- }
- if(!mIsVideoRecording){
- // mergeVideosUsingTranscoder(mVideoFileList)
- mergeVideos(mVideoFileList)
- }
- } else {
- mRecordingBackCam?.close()
- mRecordingBackCam = null
- Log.e("MainActivity", "Video capture ends with error: ${recordEvent.error}")
- }
- }
- is VideoRecordEvent.Resume -> {
- mIsVideoPaused = false
- mainBinding.ivPauseResume.setBackgroundResource(R.drawable.ic_pause_icon)
- mChronometer.base = SystemClock.elapsedRealtime() + timeWhenPaused
- mChronometer.start()
- }
- }
- }
- } catch (e: Exception) {
- e.printStackTrace()
- }
- }
- }
- private fun stopRecording() {
- mainBinding.ivStartStop.setBackgroundResource(R.drawable.ic_start_video_icon)
- mRecording!!.stop()
- mChronometer.stop()
- mChronometer.visibility = View.GONE
- if(!mIsVideoRecording) {
- mainBinding.ivPauseResume.visibility = View.GONE
- startBackCamera()
- }
- }
- private fun mergeVideos(videoFiles: List<File>) {
- try {
- progressDialogue.setMessage("Merging Videos..")
- progressDialogue.show()
- val movieList = mutableListOf<Movie>()
- for (videoFile in videoFiles) {
- val movie = MovieCreator.build(videoFile.absolutePath)
- movieList.add(movie)
- }
- val videoTracks = mutableListOf<Track>()
- val audioTracks = mutableListOf<Track>()
- for (movie in movieList) {
- for (track in movie.tracks) {
- if (track.handler == "vide") {
- videoTracks.add(track)
- }
- if (track.handler == "soun") {
- audioTracks.add(track)
- }
- }
- }
- val mergedMovie = Movie()
- if (videoTracks.size > 0) {
- mergedMovie.addTrack(AppendTrack(*videoTracks.toTypedArray()))
- }
- if (audioTracks.size > 0) {
- mergedMovie.addTrack(AppendTrack(*audioTracks.toTypedArray()))
- }
- val container = DefaultMp4Builder().build(mergedMovie)
- val fileChannel = FileOutputStream(outputFile).channel
- container.writeContainer(fileChannel)
- fileChannel.close()
- progressDialogue.cancel()
- Toast.makeText(this, "Videos merged successfully", Toast.LENGTH_SHORT).show()
- } catch (e : Exception) {
- Log.e(TAG, e.message.toString())
- }
- }
- /**
- * this method used for merging multiple videos using Transcoder library
- * @param videoFilesList
- */
- private fun mergeVideosUsingTranscoder(videoFiles: List<File>) {
- progressDialogue.setMessage("Merging Videos..")
- progressDialogue.show()
- val builder: TranscoderOptions.Builder =
- Transcoder.into(rotatedFile.absolutePath)
- for(videoFile in videoFiles) {
- builder.addDataSource(videoFile.absolutePath)
- }
- // use DefaultVideoStrategy.exact(2560, 1440).build() to restore 78% size of the video
- // use DefaultVideoStrategy.exact(mScreenSize.height, mScreenSize.width).build() to restore 50% size of the video
- val strategy: DefaultVideoStrategy = DefaultVideoStrategy.exact(mScreenSize.height, mScreenSize.width).build()
- mTranscodeFuture = builder
- .setAudioTrackStrategy(DefaultAudioStrategy.builder().build())
- .setVideoTrackStrategy(strategy)
- .setVideoRotation(0)
- .setListener(object : TranscoderListener{
- override fun onTranscodeProgress(progress: Double) {}
- override fun onTranscodeCompleted(successCode: Int) {
- Toast.makeText(this@MainActivity, "Video Merged Successfully", Toast.LENGTH_SHORT).show()
- }
- override fun onTranscodeCanceled() {
- Toast.makeText(this@MainActivity, "Video rotation cancelled", Toast.LENGTH_SHORT).show()
- }
- override fun onTranscodeFailed(exception: Throwable) {
- Toast.makeText(this@MainActivity, exception.message, Toast.LENGTH_SHORT).show()
- }
- })
- .setValidator(object : DefaultValidator() {
- override fun validate(videoStatus: TrackStatus, audioStatus: TrackStatus): Boolean {
- // mIsAudioOnly = !videoStatus.isTranscoding
- return super.validate(videoStatus, audioStatus)
- }
- }).transcode()
- progressDialogue.cancel()
- }
- /**
- * this method will check camera and other required permission to run the app
- */
- private fun checkPermissions() {
- if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED
- && ContextCompat.checkSelfPermission(this,Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
- && ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED
- && ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
- ) {
- mCameraSelector = CameraSelector.DEFAULT_BACK_CAMERA
- //startCamera()
- startBackCamera()
- } else {
- if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE )) {
- Toast.makeText(this, "app needs permission to be able to save videos", Toast.LENGTH_SHORT)
- .show()
- }
- requestPermissions(
- arrayOf(Manifest.permission.CAMERA,Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO,Manifest.permission.READ_EXTERNAL_STORAGE),
- REQUEST_CAMERA_PERMISSION
- )
- }
- }
- /**
- * this method receives the status of the permissions granted
- * @param1 requestCode
- * @param2: permissions
- * @param3: grantResults
- */
- override fun onRequestPermissionsResult(
- requestCode: Int,
- permissions: Array<String?>,
- grantResults: IntArray,
- ) {
- super.onRequestPermissionsResult(requestCode, permissions, grantResults)
- if (requestCode == REQUEST_CAMERA_PERMISSION) {
- for(results in grantResults) {
- if (results == PackageManager.PERMISSION_DENIED) {
- // close the app
- Toast.makeText(
- this@MainActivity,
- "Sorry!!!, you can't use this app without granting permission",
- Toast.LENGTH_LONG
- ).show()
- finish()
- }
- }
- }
- }
- override fun onPause() {
- super.onPause()
- Log.e(TAG, "onPause()")
- stopBackgroundThread()
- }
- /**
- * this will start the background thread to run the processes
- */
- private fun startBackgroundThread() {
- mBackgroundThreadHandler = HandlerThread("Camera Background")
- mBackgroundThreadHandler!!.start()
- mBackgroundHandler = Handler(mBackgroundThreadHandler!!.looper)
- }
- /**
- * this will stop the background thread if all the background processes are executed
- */
- private fun stopBackgroundThread() {
- mBackgroundThreadHandler!!.quitSafely()
- try {
- mBackgroundThreadHandler!!.join()
- mBackgroundThreadHandler = null
- mBackgroundHandler = null
- } catch (e: InterruptedException) {
- e.printStackTrace()
- }
- }
- override fun onStop() {
- super.onStop()
- Log.e(TAG, "onStop()")
- }
- override fun onRestart() {
- super.onRestart()
- Log.e(TAG, "onRestart()")
- }
- override fun onResume() {
- super.onResume()
- Log.e(TAG, "onResume()")
- startBackgroundThread()
- if(mIsVideoRecording) {
- mRecording!!.resume()
- mChronometer.start()
- }
- }
- override fun onDestroy() {
- super.onDestroy()
- if(mIsVideoRecording) {
- mRecording!!.stop()
- mChronometer.stop()
- }
- }
- companion object {
- const val TAG = "MainActivity"
- const val REQUEST_CAMERA_PERMISSION: Int = 0
- const val STORAGE_PERMISSION_CODE: Int = 1
- const val FILENAME_FORMAT = "yyyy-MM-dd-HH-mm-ss-SSS"
- }
- }
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