/*
 * This is the source code of Telegram for Android v. 3.x.x.
 * It is licensed under GNU GPL v. 2 or later.
 * You should have received a copy of the license in this archive (see LICENSE).
 *
 * Copyright Nikolai Kudashov, 2013-2017.
 */

package org.telegram.ui.Components;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.ImageFormat;
import android.graphics.Outline;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.graphics.SurfaceTexture;
import android.graphics.drawable.ColorDrawable;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaCodec;
import android.media.MediaCodecInfo;
import android.media.MediaFormat;
import android.media.MediaRecorder;
import android.net.Uri;
import android.opengl.EGL14;
import android.opengl.EGLExt;
import android.opengl.GLES11Ext;
import android.opengl.GLES20;
import android.opengl.GLUtils;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.annotation.Keep;
import android.view.Gravity;
import android.view.HapticFeedbackConstants;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.view.ViewOutlineProvider;
import android.view.WindowManager;
import android.view.animation.DecelerateInterpolator;
import android.widget.FrameLayout;
import android.widget.ImageView;

import org.telegram.messenger.AndroidUtilities;
import org.telegram.messenger.BuildVars;
import org.telegram.messenger.DispatchQueue;
import org.telegram.messenger.FileLoader;
import org.telegram.messenger.FileLog;
import org.telegram.messenger.MediaController;
import org.telegram.messenger.NotificationCenter;
import org.telegram.messenger.R;
import org.telegram.messenger.SharedConfig;
import org.telegram.messenger.UserConfig;
import org.telegram.messenger.VideoEditedInfo;
import org.telegram.messenger.camera.CameraController;
import org.telegram.messenger.camera.CameraInfo;
import org.telegram.messenger.camera.CameraSession;
import org.telegram.messenger.camera.Size;
import org.telegram.messenger.exoplayer2.ExoPlayer;
import org.telegram.messenger.video.MP4Builder;
import org.telegram.messenger.video.Mp4Movie;
import org.telegram.tgnet.ConnectionsManager;
import org.telegram.tgnet.TLRPC;
import org.telegram.ui.ActionBar.Theme;
import org.telegram.ui.ChatActivity;

import java.io.File;
import java.lang.ref.WeakReference;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.CountDownLatch;

import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.egl.EGLContext;
import javax.microedition.khronos.egl.EGLDisplay;
import javax.microedition.khronos.egl.EGLSurface;
import javax.microedition.khronos.opengles.GL;

@TargetApi(18)
public class InstantCameraView extends FrameLayout implements NotificationCenter.NotificationCenterDelegate {

    private int currentAccount = UserConfig.selectedAccount;
    private FrameLayout cameraContainer;
    private ChatActivity baseFragment;
    private Paint paint;
    private RectF rect;
    private ImageView switchCameraButton;
    private ImageView muteImageView;
    private float progress;
    private CameraInfo selectedCamera;
    private boolean isFrontface = true;
    private volatile boolean cameraReady;
    private AnimatorSet muteAnimation;
    private TLRPC.InputFile file;
    private TLRPC.InputEncryptedFile encryptedFile;
    private byte[] key;
    private byte[] iv;
    private long size;
    private boolean isSecretChat;
    private VideoEditedInfo videoEditedInfo;
    private VideoPlayer videoPlayer;

    private int[] position = new int[2];
    private int cameraTexture[] = new int[1];
    private int oldCameraTexture[] = new int[1];
    private float cameraTextureAlpha = 1.0f;

    private AnimatorSet animatorSet;

    private boolean deviceHasGoodCamera;
    private boolean requestingPermissions;
    private File cameraFile;
    private long recordStartTime;
    private boolean recording;
    private long recordedTime;
    private boolean cancelled;
    private long duration;

    private Runnable timerRunnable = new Runnable() {
        @Override
        public void run() {
            if (!recording) {
                return;
            }
            NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.recordProgressChanged, duration = System.currentTimeMillis() - recordStartTime, 0.0);
            AndroidUtilities.runOnUIThread(timerRunnable, 50);
        }
    };

    private CameraGLThread cameraThread;
    private Size previewSize;
    private Size pictureSize;
    private Size aspectRatio = SharedConfig.roundCamera16to9 ? new Size(16, 9) : new Size(4, 3);
    private TextureView textureView;
    private CameraSession cameraSession;

    private float[] mMVPMatrix = new float[16];
    private float[] mSTMatrix = new float[16];
    private float[] moldSTMatrix = new float[16];
    private static final String VERTEX_SHADER =
            "uniform mat4 uMVPMatrix;\n" +
            "uniform mat4 uSTMatrix;\n" +
            "attribute vec4 aPosition;\n" +
            "attribute vec4 aTextureCoord;\n" +
            "varying vec2 vTextureCoord;\n" +
            "void main() {\n" +
            "   gl_Position = uMVPMatrix * aPosition;\n" +
            "   vTextureCoord = (uSTMatrix * aTextureCoord).xy;\n" +
            "}\n";

    private static final String FRAGMENT_SHADER =
            "#extension GL_OES_EGL_image_external : require\n" +
            "precision highp float;\n" +
            "varying vec2 vTextureCoord;\n" +
            "uniform float scaleX;\n" +
            "uniform float scaleY;\n" +
            "uniform float alpha;\n" +
            "uniform samplerExternalOES sTexture;\n" +
            "void main() {\n" +
            "   vec2 coord = vec2((vTextureCoord.x - 0.5) * scaleX, (vTextureCoord.y - 0.5) * scaleY);\n" +
            "   float coef = ceil(clamp(0.2601 - dot(coord, coord), 0.0, 1.0));\n" +
            "   vec3 color = texture2D(sTexture, vTextureCoord).rgb * coef + (1.0 - step(0.001, coef));\n" +
            "   gl_FragColor = vec4(color * alpha, alpha);\n" +
            "}\n";

    private static final String FRAGMENT_SCREEN_SHADER =
            "#extension GL_OES_EGL_image_external : require\n" +
            "precision lowp float;\n" +
            "varying vec2 vTextureCoord;\n" +
            "uniform samplerExternalOES sTexture;\n" +
            "void main() {\n" +
            "   gl_FragColor = texture2D(sTexture, vTextureCoord);\n" +
            "}\n";

    private FloatBuffer vertexBuffer;
    private FloatBuffer textureBuffer;
    private float scaleX;
    private float scaleY;

    public InstantCameraView(Context context, ChatActivity parentFragment) {
        super(context);
        setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_DOWN && baseFragment != null) {
                    if (videoPlayer != null) {
                        boolean mute = !videoPlayer.isMuted();
                        videoPlayer.setMute(mute);
                        if (muteAnimation != null) {
                            muteAnimation.cancel();
                        }
                        muteAnimation = new AnimatorSet();
                        muteAnimation.playTogether(
                                ObjectAnimator.ofFloat(muteImageView, "alpha", mute ? 1.0f : 0.0f),
                                ObjectAnimator.ofFloat(muteImageView, "scaleX", mute ? 1.0f : 0.5f),
                                ObjectAnimator.ofFloat(muteImageView, "scaleY", mute ? 1.0f : 0.5f));
                        muteAnimation.addListener(new AnimatorListenerAdapter() {
                            @Override
                            public void onAnimationEnd(Animator animation) {
                                if (animation.equals(muteAnimation)) {
                                    muteAnimation = null;
                                }
                            }
                        });
                        muteAnimation.setDuration(180);
                        muteAnimation.setInterpolator(new DecelerateInterpolator());
                        muteAnimation.start();
                    } else {
                        baseFragment.checkRecordLocked();
                    }
                }
                return true;
            }
        });
        setWillNotDraw(false);
        setBackgroundColor(0xc0000000);
        baseFragment = parentFragment;
        isSecretChat = baseFragment.getCurrentEncryptedChat() != null;
        paint = new Paint(Paint.ANTI_ALIAS_FLAG) {
            @Override
            public void setAlpha(int a) {
                super.setAlpha(a);
                invalidate();
            }
        };
        paint.setStyle(Paint.Style.STROKE);
        paint.setStrokeCap(Paint.Cap.ROUND);
        paint.setStrokeWidth(AndroidUtilities.dp(3));
        paint.setColor(0xffffffff);

        rect = new RectF();

        if (Build.VERSION.SDK_INT >= 21) {
            cameraContainer = new FrameLayout(context) {
                @Override
                public void setScaleX(float scaleX) {
                    super.setScaleX(scaleX);
                    InstantCameraView.this.invalidate();
                }

                @Override
                public void setAlpha(float alpha) {
                    super.setAlpha(alpha);
                    InstantCameraView.this.invalidate();
                }
            };
            cameraContainer.setOutlineProvider(new ViewOutlineProvider() {
                @TargetApi(Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void getOutline(View view, Outline outline) {
                    outline.setOval(0, 0, AndroidUtilities.roundMessageSize, AndroidUtilities.roundMessageSize);
                }
            });
            cameraContainer.setClipToOutline(true);
            cameraContainer.setWillNotDraw(false);
        } else {
            final Path path = new Path();
            final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
            paint.setColor(0xff000000);
            paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
            cameraContainer = new FrameLayout(context) {

                @Override
                public void setScaleX(float scaleX) {
                    super.setScaleX(scaleX);
                    InstantCameraView.this.invalidate();
                }

                @Override
                protected void onSizeChanged(int w, int h, int oldw, int oldh) {
                    super.onSizeChanged(w, h, oldw, oldh);
                    path.reset();
                    path.addCircle(w / 2, h / 2, w / 2, Path.Direction.CW);
                    path.toggleInverseFillType();
                }

                @Override
                protected void dispatchDraw(Canvas canvas) {
                    try {
                        super.dispatchDraw(canvas);
                        canvas.drawPath(path, paint);
                    } catch (Exception ignore) {

                    }
                }
            };
            cameraContainer.setWillNotDraw(false);
            cameraContainer.setLayerType(View.LAYER_TYPE_HARDWARE, null);
        }

        addView(cameraContainer, new FrameLayout.LayoutParams(AndroidUtilities.roundMessageSize, AndroidUtilities.roundMessageSize, Gravity.CENTER));

        switchCameraButton = new ImageView(context);
        switchCameraButton.setScaleType(ImageView.ScaleType.CENTER);
        addView(switchCameraButton, LayoutHelper.createFrame(48, 48, Gravity.LEFT | Gravity.BOTTOM, 20, 0, 0, 14));
        switchCameraButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (!cameraReady || cameraSession == null || !cameraSession.isInitied() || cameraThread == null) {
                    return;
                }
                switchCamera();
                ObjectAnimator animator = ObjectAnimator.ofFloat(switchCameraButton, "scaleX", 0.0f).setDuration(100);
                animator.addListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animator) {
                        switchCameraButton.setImageResource(isFrontface ? R.drawable.camera_revert1 : R.drawable.camera_revert2);
                        ObjectAnimator.ofFloat(switchCameraButton, "scaleX", 1.0f).setDuration(100).start();
                    }
                });
                animator.start();
            }
        });

        muteImageView = new ImageView(context);
        muteImageView.setScaleType(ImageView.ScaleType.CENTER);
        muteImageView.setImageResource(R.drawable.video_mute);
        muteImageView.setAlpha(0.0f);
        addView(muteImageView, LayoutHelper.createFrame(48, 48, Gravity.CENTER));
        ((LayoutParams) muteImageView.getLayoutParams()).topMargin = AndroidUtilities.roundMessageSize / 2 - AndroidUtilities.dp(24);

        setVisibility(INVISIBLE);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        getParent().requestDisallowInterceptTouchEvent(true);
        return super.onInterceptTouchEvent(ev);
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        if (getVisibility() != VISIBLE) {
            cameraContainer.setTranslationY(getMeasuredHeight() / 2);
        }
    }

    @Override
    protected void onAttachedToWindow() {
        super.onAttachedToWindow();
        NotificationCenter.getInstance(currentAccount).addObserver(this, NotificationCenter.recordProgressChanged);
        NotificationCenter.getInstance(currentAccount).addObserver(this, NotificationCenter.FileDidUpload);
    }

    @Override
    protected void onDetachedFromWindow() {
        super.onDetachedFromWindow();
        NotificationCenter.getInstance(currentAccount).removeObserver(this, NotificationCenter.recordProgressChanged);
        NotificationCenter.getInstance(currentAccount).removeObserver(this, NotificationCenter.FileDidUpload);
    }

    @Override
    public void didReceivedNotification(int id, int account, Object... args) {
        if (id == NotificationCenter.recordProgressChanged) {
            long t = (Long) args[0];
            progress = t / 60000.0f;
            recordedTime = t;
            invalidate();
        } else if (id == NotificationCenter.FileDidUpload) {
            final String location = (String) args[0];
            if (cameraFile != null && cameraFile.getAbsolutePath().equals(location)) {
                file = (TLRPC.InputFile) args[1];
                encryptedFile = (TLRPC.InputEncryptedFile) args[2];
                size = (Long) args[5];
                if (encryptedFile != null) {
                    key = (byte[]) args[3];
                    iv = (byte[]) args[4];
                }
            }
        }
    }

    public void destroy(boolean async, final Runnable beforeDestroyRunnable) {
        if (cameraSession != null) {
            cameraSession.destroy();
            CameraController.getInstance().close(cameraSession, !async ? new CountDownLatch(1) : null, beforeDestroyRunnable);
        }
    }

    @Override
    protected void onDraw(Canvas canvas) {
        float x = cameraContainer.getX();
        float y = cameraContainer.getY();
        rect.set(x - AndroidUtilities.dp(8), y - AndroidUtilities.dp(8), x + cameraContainer.getMeasuredWidth() + AndroidUtilities.dp(8), y + cameraContainer.getMeasuredHeight() + AndroidUtilities.dp(8));
        if (progress != 0) {
            canvas.drawArc(rect, -90, 360 * progress, false, paint);
        }
        if (Theme.chat_roundVideoShadow != null) {
            int x1 = (int) x - AndroidUtilities.dp(3);
            int y1 = (int) y - AndroidUtilities.dp(2);
            canvas.save();
            canvas.scale(cameraContainer.getScaleX(), cameraContainer.getScaleY(), x1 + AndroidUtilities.roundMessageSize / 2 + AndroidUtilities.dp(3), y1 + AndroidUtilities.roundMessageSize / 2 + AndroidUtilities.dp(3));
            Theme.chat_roundVideoShadow.setAlpha((int) (cameraContainer.getAlpha() * 255));
            Theme.chat_roundVideoShadow.setBounds(x1, y1, x1 + AndroidUtilities.roundMessageSize + AndroidUtilities.dp(6), y1 + AndroidUtilities.roundMessageSize + AndroidUtilities.dp(6));
            Theme.chat_roundVideoShadow.draw(canvas);
            canvas.restore();
        }
    }

    @Override
    public void setVisibility(int visibility) {
        super.setVisibility(visibility);
        setAlpha(0.0f);
        switchCameraButton.setAlpha(0.0f);
        cameraContainer.setAlpha(0.0f);
        muteImageView.setAlpha(0.0f);
        muteImageView.setScaleX(1.0f);
        muteImageView.setScaleY(1.0f);
        cameraContainer.setScaleX(0.1f);
        cameraContainer.setScaleY(0.1f);
        if (cameraContainer.getMeasuredWidth() != 0) {
            cameraContainer.setPivotX(cameraContainer.getMeasuredWidth() / 2);
            cameraContainer.setPivotY(cameraContainer.getMeasuredHeight() / 2);
        }
        try {
            if (visibility == VISIBLE) {
                ((Activity) getContext()).getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
            } else {
                ((Activity) getContext()).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
            }
        } catch (Exception e) {
            FileLog.e(e);
        }
    }

    public void showCamera() {
        if (textureView != null) {
            return;
        }

        switchCameraButton.setImageResource(R.drawable.camera_revert1);
        isFrontface = true;
        selectedCamera = null;
        recordedTime = 0;
        progress = 0;
        cancelled = false;
        file = null;
        encryptedFile = null;
        key = null;
        iv = null;

        if (!initCamera()) {
            return;
        }
        MediaController.getInstance().pauseMessage(MediaController.getInstance().getPlayingMessageObject());

        cameraFile = new File(FileLoader.getDirectory(FileLoader.MEDIA_DIR_CACHE), SharedConfig.getLastLocalId() + ".mp4");
        SharedConfig.saveConfig();

        if (BuildVars.LOGS_ENABLED) {
            FileLog.d("show round camera");
        }

        textureView = new TextureView(getContext());
        textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.d("camera surface available");
                }
                if (cameraThread == null && surface != null) {
                    if (cancelled) {
                        return;
                    }
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.d("start create thread");
                    }
                    cameraThread = new CameraGLThread(surface, width, height);
                }
            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, final int width, final int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                if (cameraThread != null) {
                    cameraThread.shutdown(0);
                    cameraThread = null;
                }
                if (cameraSession != null) {
                    CameraController.getInstance().close(cameraSession, null, null);
                }
                return true;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });
        cameraContainer.addView(textureView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT));

        setVisibility(VISIBLE);

        startAnimation(true);
    }

    public FrameLayout getCameraContainer() {
        return cameraContainer;
    }

    public void startAnimation(boolean open) {
        if (animatorSet != null) {
            animatorSet.cancel();
        }
        PipRoundVideoView pipRoundVideoView = PipRoundVideoView.getInstance();
        if (pipRoundVideoView != null) {
            pipRoundVideoView.showTemporary(!open);
        }
        animatorSet = new AnimatorSet();
        animatorSet.playTogether(
                ObjectAnimator.ofFloat(this, "alpha", open ? 1.0f : 0.0f),
                ObjectAnimator.ofFloat(switchCameraButton, "alpha", open ? 1.0f : 0.0f),
                ObjectAnimator.ofFloat(muteImageView, "alpha", 0.0f),
                ObjectAnimator.ofInt(paint, "alpha", open ? 255 : 0),
                ObjectAnimator.ofFloat(cameraContainer, "alpha", open ? 1.0f : 0.0f),
                ObjectAnimator.ofFloat(cameraContainer, "scaleX", open ? 1.0f : 0.1f),
                ObjectAnimator.ofFloat(cameraContainer, "scaleY", open ? 1.0f : 0.1f),
                ObjectAnimator.ofFloat(cameraContainer, "translationY", open ? getMeasuredHeight() / 2 : 0, open ? 0 : getMeasuredHeight() / 2)
        );
        if (!open) {
            animatorSet.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    if (animation.equals(animatorSet)) {
                        hideCamera(true);
                        setVisibility(INVISIBLE);
                    }
                }
            });
        }
        animatorSet.setDuration(180);
        animatorSet.setInterpolator(new DecelerateInterpolator());
        animatorSet.start();
    }

    public Rect getCameraRect() {
        cameraContainer.getLocationOnScreen(position);
        return new Rect(position[0], position[1], cameraContainer.getWidth(), cameraContainer.getHeight());
    }

    public void changeVideoPreviewState(int state, float progress) {
        if (videoPlayer == null) {
            return;
        }
        if (state == 0) {
            startProgressTimer();
            videoPlayer.play();
        } else if (state == 1) {
            stopProgressTimer();
            videoPlayer.pause();
        } else if (state == 2) {
            videoPlayer.seekTo((long) (progress * videoPlayer.getDuration()));
        }
    }

    public void send(int state) {
        if (textureView == null) {
            return;
        }
        stopProgressTimer();
        if (videoPlayer != null) {
            videoPlayer.releasePlayer();
            videoPlayer = null;
        }
        if (state == 4) {
            if (videoEditedInfo.needConvert()) {
                file = null;
                encryptedFile = null;
                key = null;
                iv = null;
                double totalDuration = videoEditedInfo.estimatedDuration;
                long startTime = videoEditedInfo.startTime >= 0 ? videoEditedInfo.startTime : 0;
                long endTime = videoEditedInfo.endTime >= 0 ? videoEditedInfo.endTime : videoEditedInfo.estimatedDuration;
                videoEditedInfo.estimatedDuration = endTime - startTime;
                videoEditedInfo.estimatedSize = Math.max(1, (long) (size * (videoEditedInfo.estimatedDuration / totalDuration)));
                videoEditedInfo.bitrate = 400000;
                if (videoEditedInfo.startTime > 0) {
                    videoEditedInfo.startTime *= 1000;
                }
                if (videoEditedInfo.endTime > 0) {
                    videoEditedInfo.endTime *= 1000;
                }
                FileLoader.getInstance(currentAccount).cancelUploadFile(cameraFile.getAbsolutePath(), false);
            } else {
                videoEditedInfo.estimatedSize = Math.max(1, size);
            }
            videoEditedInfo.file = file;
            videoEditedInfo.encryptedFile = encryptedFile;
            videoEditedInfo.key = key;
            videoEditedInfo.iv = iv;
            baseFragment.sendMedia(new MediaController.PhotoEntry(0, 0, 0, cameraFile.getAbsolutePath(), 0, true), videoEditedInfo);
        } else {
            cancelled = recordedTime < 800;
            recording = false;
            AndroidUtilities.cancelRunOnUIThread(timerRunnable);
            if (cameraThread != null) {
                NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.recordStopped, !cancelled && state == 3 ? 2 : 0);
                int send;
                if (cancelled) {
                    send = 0;
                } else if (state == 3) {
                    send = 2;
                } else {
                    send = 1;
                }
                cameraThread.shutdown(send);
                cameraThread = null;
            }
            if (cancelled) {
                startAnimation(false);
            }
        }
    }

    public void cancel() {
        stopProgressTimer();
        if (videoPlayer != null) {
            videoPlayer.releasePlayer();
            videoPlayer = null;
        }
        if (textureView == null) {
            return;
        }
        cancelled = true;
        recording = false;
        AndroidUtilities.cancelRunOnUIThread(timerRunnable);
        NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.recordStopped, 0);
        if (cameraThread != null) {
            cameraThread.shutdown(0);
            cameraThread = null;
        }
        if (cameraFile != null) {
            cameraFile.delete();
            cameraFile = null;
        }
        startAnimation(false);
    }

    @Keep
    @Override
    public void setAlpha(float alpha) {
        ColorDrawable colorDrawable = (ColorDrawable) getBackground();
        colorDrawable.setAlpha((int) (0xc0 * alpha));
        invalidate();
    }

    public View getSwitchButtonView() {
        return switchCameraButton;
    }

    public View getMuteImageView() {
        return muteImageView;
    }

    public Paint getPaint() {
        return paint;
    }

    public void hideCamera(boolean async) {
        destroy(async, null);
        cameraContainer.removeView(textureView);
        cameraContainer.setTranslationX(0);
        cameraContainer.setTranslationY(0);
        textureView = null;
    }

    private void switchCamera() {
        if (cameraSession != null) {
            cameraSession.destroy();
            CameraController.getInstance().close(cameraSession, null, null);
            cameraSession = null;
        }
        isFrontface = !isFrontface;
        initCamera();
        cameraReady = false;
        cameraThread.reinitForNewCamera();
    }

    private boolean initCamera() {
        ArrayList<CameraInfo> cameraInfos = CameraController.getInstance().getCameras();
        if (cameraInfos == null) {
            return false;
        }
        CameraInfo notFrontface = null;
        for (int a = 0; a < cameraInfos.size(); a++) {
            CameraInfo cameraInfo = cameraInfos.get(a);
            if (!cameraInfo.isFrontface()) {
                notFrontface = cameraInfo;
            }
            if (isFrontface && cameraInfo.isFrontface() || !isFrontface && !cameraInfo.isFrontface()) {
                selectedCamera = cameraInfo;
                break;
            } else {
                notFrontface = cameraInfo;
            }
        }
        if (selectedCamera == null) {
            selectedCamera = notFrontface;
        }
        if (selectedCamera == null) {
            return false;
        }

        ArrayList<Size> previewSizes = selectedCamera.getPreviewSizes();
        ArrayList<Size> pictureSizes = selectedCamera.getPictureSizes();
        previewSize = CameraController.chooseOptimalSize(previewSizes, 480, 270, aspectRatio);
        pictureSize = CameraController.chooseOptimalSize(pictureSizes, 480, 270, aspectRatio);
        if (previewSize.mWidth != pictureSize.mWidth) {
            boolean found = false;
            for (int a = previewSizes.size() - 1; a >= 0; a--) {
                Size preview = previewSizes.get(a);
                for (int b = pictureSizes.size() - 1; b >= 0; b--) {
                    Size picture = pictureSizes.get(b);
                    if (preview.mWidth >= pictureSize.mWidth && preview.mHeight >= pictureSize.mHeight && preview.mWidth == picture.mWidth && preview.mHeight == picture.mHeight) {
                        previewSize = preview;
                        pictureSize = picture;
                        found = true;
                        break;
                    }
                }
                if (found) {
                    break;
                }
            }

            if (!found) {
                for (int a = previewSizes.size() - 1; a >= 0; a--) {
                    Size preview = previewSizes.get(a);
                    for (int b = pictureSizes.size() - 1; b >= 0; b--) {
                        Size picture = pictureSizes.get(b);
                        if (preview.mWidth >= 240 && preview.mHeight >= 240 && preview.mWidth == picture.mWidth && preview.mHeight == picture.mHeight) {
                            previewSize = preview;
                            pictureSize = picture;
                            found = true;
                            break;
                        }
                    }
                    if (found) {
                        break;
                    }
                }
            }
        }
        if (BuildVars.LOGS_ENABLED) {
            FileLog.d("preview w = " + previewSize.mWidth + " h = " + previewSize.mHeight);
        }
        return true;
    }

    private void createCamera(final SurfaceTexture surfaceTexture) {
        AndroidUtilities.runOnUIThread(new Runnable() {
            @Override
            public void run() {
                if (cameraThread == null) {
                    return;
                }
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.d("create camera session");
                }

                surfaceTexture.setDefaultBufferSize(previewSize.getWidth(), previewSize.getHeight());
                cameraSession = new CameraSession(selectedCamera, previewSize, pictureSize, ImageFormat.JPEG);
                cameraThread.setCurrentSession(cameraSession);
                CameraController.getInstance().openRound(cameraSession, surfaceTexture, new Runnable() {
                    @Override
                    public void run() {
                        if (cameraSession != null) {
                            if (BuildVars.LOGS_ENABLED) {
                                FileLog.d("camera initied");
                            }
                            cameraSession.setInitied();
                        }
                    }
                }, new Runnable() {
                    @Override
                    public void run() {
                        cameraThread.setCurrentSession(cameraSession);
                    }
                });
            }
        });
    }

    private int loadShader(int type, String shaderCode) {
        int shader = GLES20.glCreateShader(type);
        GLES20.glShaderSource(shader, shaderCode);
        GLES20.glCompileShader(shader);
        int[] compileStatus = new int[1];
        GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compileStatus, 0);
        if (compileStatus[0] == 0) {
            if (BuildVars.LOGS_ENABLED) {
                FileLog.e(GLES20.glGetShaderInfoLog(shader));
            }
            GLES20.glDeleteShader(shader);
            shader = 0;
        }
        return shader;
    }

    private Timer progressTimer;

    private void startProgressTimer() {
        if (progressTimer != null) {
            try {
                progressTimer.cancel();
                progressTimer = null;
            } catch (Exception e) {
                FileLog.e(e);
            }
        }
        progressTimer = new Timer();
        progressTimer.schedule(new TimerTask() {
            @Override
            public void run() {
                AndroidUtilities.runOnUIThread(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            if (videoPlayer != null && videoEditedInfo != null && videoEditedInfo.endTime > 0 && videoPlayer.getCurrentPosition() >= videoEditedInfo.endTime) {
                                videoPlayer.seekTo(videoEditedInfo.startTime > 0 ? videoEditedInfo.startTime : 0);
                            }
                        } catch (Exception e) {
                            FileLog.e(e);
                        }
                    }
                });
            }
        }, 0, 17);
    }

    private void stopProgressTimer() {
        if (progressTimer != null) {
            try {
                progressTimer.cancel();
                progressTimer = null;
            } catch (Exception e) {
                FileLog.e(e);
            }
        }
    }

    public class CameraGLThread extends DispatchQueue {

        private final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
        private final int EGL_OPENGL_ES2_BIT = 4;
        private SurfaceTexture surfaceTexture;
        private EGL10 egl10;
        private EGLDisplay eglDisplay;
        private EGLConfig eglConfig;
        private EGLContext eglContext;
        private EGLSurface eglSurface;
        private GL gl;
        private boolean initied;

        private CameraSession currentSession;

        private SurfaceTexture cameraSurface;

        private final int DO_RENDER_MESSAGE = 0;
        private final int DO_SHUTDOWN_MESSAGE = 1;
        private final int DO_REINIT_MESSAGE = 2;
        private final int DO_SETSESSION_MESSAGE = 3;

        private int drawProgram;
        private int vertexMatrixHandle;
        private int textureMatrixHandle;
        private int positionHandle;
        private int textureHandle;

        private int rotationAngle;

        private boolean recording;

        private Integer cameraId = 0;

        private VideoRecorder videoEncoder;

        public CameraGLThread(SurfaceTexture surface, int surfaceWidth, int surfaceHeight) {
            super("CameraGLThread");
            surfaceTexture = surface;

            int width = previewSize.getWidth();
            int height = previewSize.getHeight();

            float scale = surfaceWidth / (float) Math.min(width, height);

            width *= scale;
            height *= scale;
            if (width > height) {
                scaleX = 1.0f;
                scaleY = width / (float) surfaceHeight;
            } else {
                scaleX = height / (float) surfaceWidth;
                scaleY = 1.0f;
            }
        }

        private boolean initGL() {
            if (BuildVars.LOGS_ENABLED) {
                FileLog.d("start init gl");
            }
            egl10 = (EGL10) EGLContext.getEGL();

            eglDisplay = egl10.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
            if (eglDisplay == EGL10.EGL_NO_DISPLAY) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglGetDisplay failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            }

            int[] version = new int[2];
            if (!egl10.eglInitialize(eglDisplay, version)) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglInitialize failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            }

            int[] configsCount = new int[1];
            EGLConfig[] configs = new EGLConfig[1];
            int[] configSpec = new int[] {
                    EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
                    EGL10.EGL_RED_SIZE, 8,
                    EGL10.EGL_GREEN_SIZE, 8,
                    EGL10.EGL_BLUE_SIZE, 8,
                    EGL10.EGL_ALPHA_SIZE, 0,
                    EGL10.EGL_DEPTH_SIZE, 0,
                    EGL10.EGL_STENCIL_SIZE, 0,
                    EGL10.EGL_NONE
            };
            if (!egl10.eglChooseConfig(eglDisplay, configSpec, configs, 1, configsCount)) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglChooseConfig failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            } else if (configsCount[0] > 0) {
                eglConfig = configs[0];
            } else {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglConfig not initialized");
                }
                finish();
                return false;
            }

            int[] attrib_list = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE };
            eglContext = egl10.eglCreateContext(eglDisplay, eglConfig, EGL10.EGL_NO_CONTEXT, attrib_list);
            if (eglContext == null) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglCreateContext failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            }

            if (surfaceTexture instanceof SurfaceTexture) {
                eglSurface = egl10.eglCreateWindowSurface(eglDisplay, eglConfig, surfaceTexture, null);
            } else {
                finish();
                return false;
            }

            if (eglSurface == null || eglSurface == EGL10.EGL_NO_SURFACE) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("createWindowSurface failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            }
            if (!egl10.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglMakeCurrent failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                }
                finish();
                return false;
            }
            gl = eglContext.getGL();

            float tX = 1.0f / scaleX / 2.0f;
            float tY = 1.0f / scaleY / 2.0f;
            float[] verticesData = {
                    -1.0f, -1.0f, 0,
                    1.0f, -1.0f, 0,
                    -1.0f, 1.0f, 0,
                    1.0f, 1.0f, 0
            };
            float[] texData = {
                    0.5f - tX, 0.5f - tY,
                    0.5f + tX, 0.5f - tY,
                    0.5f - tX, 0.5f + tY,
                    0.5f + tX, 0.5f + tY
            };

            videoEncoder = new VideoRecorder();

            vertexBuffer = ByteBuffer.allocateDirect(verticesData.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
            vertexBuffer.put(verticesData).position(0);

            textureBuffer = ByteBuffer.allocateDirect(texData.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
            textureBuffer.put(texData).position(0);

            android.opengl.Matrix.setIdentityM(mSTMatrix, 0);

            int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, VERTEX_SHADER);
            int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, FRAGMENT_SCREEN_SHADER);
            if (vertexShader != 0 && fragmentShader != 0) {
                drawProgram = GLES20.glCreateProgram();
                GLES20.glAttachShader(drawProgram, vertexShader);
                GLES20.glAttachShader(drawProgram, fragmentShader);
                GLES20.glLinkProgram(drawProgram);
                int[] linkStatus = new int[1];
                GLES20.glGetProgramiv(drawProgram, GLES20.GL_LINK_STATUS, linkStatus, 0);
                if (linkStatus[0] == 0) {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.e("failed link shader");
                    }
                    GLES20.glDeleteProgram(drawProgram);
                    drawProgram = 0;
                } else {
                    positionHandle = GLES20.glGetAttribLocation(drawProgram, "aPosition");
                    textureHandle = GLES20.glGetAttribLocation(drawProgram, "aTextureCoord");
                    vertexMatrixHandle = GLES20.glGetUniformLocation(drawProgram, "uMVPMatrix");
                    textureMatrixHandle = GLES20.glGetUniformLocation(drawProgram, "uSTMatrix");
                }
            } else {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("failed creating shader");
                }
                finish();
                return false;
            }

            GLES20.glGenTextures(1, cameraTexture, 0);
            GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, cameraTexture[0]);
            GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
            GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
            GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
            GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);

            android.opengl.Matrix.setIdentityM(mMVPMatrix, 0);

            cameraSurface = new SurfaceTexture(cameraTexture[0]);
            cameraSurface.setOnFrameAvailableListener(new SurfaceTexture.OnFrameAvailableListener() {
                @Override
                public void onFrameAvailable(SurfaceTexture surfaceTexture) {
                    requestRender();
                }
            });
            createCamera(cameraSurface);
            if (BuildVars.LOGS_ENABLED) {
                FileLog.e("gl initied");
            }

            return true;
        }

        public void reinitForNewCamera() {
            Handler handler = getHandler();
            if (handler != null) {
                sendMessage(handler.obtainMessage(DO_REINIT_MESSAGE), 0);
            }
        }

        public void finish() {
            if (eglSurface != null) {
                egl10.eglMakeCurrent(eglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
                egl10.eglDestroySurface(eglDisplay, eglSurface);
                eglSurface = null;
            }
            if (eglContext != null) {
                egl10.eglDestroyContext(eglDisplay, eglContext);
                eglContext = null;
            }
            if (eglDisplay != null) {
                egl10.eglTerminate(eglDisplay);
                eglDisplay = null;
            }
        }

        public void setCurrentSession(CameraSession session) {
            Handler handler = getHandler();
            if (handler != null) {
                sendMessage(handler.obtainMessage(DO_SETSESSION_MESSAGE, session), 0);
            }
        }

        private void onDraw(Integer cameraId) {
            if (!initied) {
                return;
            }

            if (!eglContext.equals(egl10.eglGetCurrentContext()) || !eglSurface.equals(egl10.eglGetCurrentSurface(EGL10.EGL_DRAW))) {
                if (!egl10.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.e("eglMakeCurrent failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                    }
                    return;
                }
            }
            cameraSurface.updateTexImage();

            if (!recording) {
                videoEncoder.startRecording(cameraFile, EGL14.eglGetCurrentContext());
                recording = true;
                int orientation = currentSession.getCurrentOrientation();
                if (orientation == 90 || orientation == 270) {
                    float temp = scaleX;
                    scaleX = scaleY;
                    scaleY = temp;
                }
            }

            videoEncoder.frameAvailable(cameraSurface, cameraId, System.nanoTime());

            cameraSurface.getTransformMatrix(mSTMatrix);

            GLES20.glUseProgram(drawProgram);
            GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
            GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, cameraTexture[0]);

            GLES20.glVertexAttribPointer(positionHandle, 3, GLES20.GL_FLOAT, false, 12, vertexBuffer);
            GLES20.glEnableVertexAttribArray(positionHandle);

            GLES20.glVertexAttribPointer(textureHandle, 2, GLES20.GL_FLOAT, false, 8, textureBuffer);
            GLES20.glEnableVertexAttribArray(textureHandle);

            GLES20.glUniformMatrix4fv(textureMatrixHandle, 1, false, mSTMatrix, 0);
            GLES20.glUniformMatrix4fv(vertexMatrixHandle, 1, false, mMVPMatrix, 0);

            GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);

            GLES20.glDisableVertexAttribArray(positionHandle);
            GLES20.glDisableVertexAttribArray(textureHandle);
            GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, 0);
            GLES20.glUseProgram(0);

            egl10.eglSwapBuffers(eglDisplay, eglSurface);
        }

        @Override
        public void run() {
            initied = initGL();
            super.run();
        }

        @Override
        public void handleMessage(Message inputMessage) {
            int what = inputMessage.what;

            switch (what) {
                case DO_RENDER_MESSAGE:
                    onDraw((Integer) inputMessage.obj);
                    break;
                case DO_SHUTDOWN_MESSAGE:
                    finish();
                    if (recording) {
                        videoEncoder.stopRecording(inputMessage.arg1);
                    }
                    Looper looper = Looper.myLooper();
                    if (looper != null) {
                        looper.quit();
                    }
                    break;
                case DO_REINIT_MESSAGE: {
                    if (!egl10.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
                        if (BuildVars.LOGS_ENABLED) {
                            FileLog.d("eglMakeCurrent failed " + GLUtils.getEGLErrorString(egl10.eglGetError()));
                        }
                        return;
                    }

                    if (cameraSurface != null) {
                        cameraSurface.getTransformMatrix(moldSTMatrix);
                        cameraSurface.setOnFrameAvailableListener(null);
                        cameraSurface.release();
                        oldCameraTexture[0] = cameraTexture[0];
                        cameraTextureAlpha = 0.0f;
                        cameraTexture[0] = 0;
                    }
                    cameraId++;
                    cameraReady = false;

                    GLES20.glGenTextures(1, cameraTexture, 0);
                    GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, cameraTexture[0]);
                    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
                    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
                    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
                    GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);

                    cameraSurface = new SurfaceTexture(cameraTexture[0]);
                    cameraSurface.setOnFrameAvailableListener(new SurfaceTexture.OnFrameAvailableListener() {
                        @Override
                        public void onFrameAvailable(SurfaceTexture surfaceTexture) {
                            requestRender();
                        }
                    });
                    createCamera(cameraSurface);
                    break;
                }
                case DO_SETSESSION_MESSAGE: {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.d("set gl rednderer session");
                    }
                    CameraSession newSession = (CameraSession) inputMessage.obj;
                    if (currentSession == newSession) {
                        rotationAngle = currentSession.getWorldAngle();
                        android.opengl.Matrix.setIdentityM(mMVPMatrix, 0);
                        if (rotationAngle != 0) {
                            android.opengl.Matrix.rotateM(mMVPMatrix, 0, rotationAngle, 0, 0, 1);
                        }
                    } else {
                        currentSession = newSession;
                    }
                    break;
                }
            }
        }

        public void shutdown(int send) {
            Handler handler = getHandler();
            if (handler != null) {
                sendMessage(handler.obtainMessage(DO_SHUTDOWN_MESSAGE, send, 0), 0);
            }
        }

        public void requestRender() {
            Handler handler = getHandler();
            if (handler != null) {
                sendMessage(handler.obtainMessage(DO_RENDER_MESSAGE, cameraId), 0);
            }
        }
    }

    private static final int MSG_START_RECORDING = 0;
    private static final int MSG_STOP_RECORDING = 1;
    private static final int MSG_VIDEOFRAME_AVAILABLE = 2;
    private static final int MSG_AUDIOFRAME_AVAILABLE = 3;

    private static class EncoderHandler extends Handler {
        private WeakReference<VideoRecorder> mWeakEncoder;

        public EncoderHandler(VideoRecorder encoder) {
            mWeakEncoder = new WeakReference<>(encoder);
        }

        @Override
        public void handleMessage(Message inputMessage) {
            int what = inputMessage.what;
            Object obj = inputMessage.obj;

            VideoRecorder encoder = mWeakEncoder.get();
            if (encoder == null) {
                return;
            }

            switch (what) {
                case MSG_START_RECORDING: {
                    try {
                        if (BuildVars.LOGS_ENABLED) {
                            FileLog.e("start encoder");
                        }
                        encoder.prepareEncoder();
                    } catch (Exception e) {
                        FileLog.e(e);
                        encoder.handleStopRecording(0);
                        Looper.myLooper().quit();
                    }
                    break;
                }
                case MSG_STOP_RECORDING: {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.e("stop encoder");
                    }
                    encoder.handleStopRecording(inputMessage.arg1);
                    break;
                }
                case MSG_VIDEOFRAME_AVAILABLE: {
                    long timestamp = (((long) inputMessage.arg1) << 32) | (((long) inputMessage.arg2) & 0xffffffffL);
                    Integer cameraId = (Integer) inputMessage.obj;
                    encoder.handleVideoFrameAvailable(timestamp, cameraId);
                    break;
                }
                case MSG_AUDIOFRAME_AVAILABLE: {
                    encoder.handleAudioFrameAvailable((AudioBufferInfo) inputMessage.obj);
                    break;
                }
            }
        }

        public void exit() {
            Looper.myLooper().quit();
        }
    }

    private class AudioBufferInfo {
        byte[] buffer = new byte[2048 * 10];
        long[] offset = new long[10];
        int[] read = new int[10];
        int results;
        int lastWroteBuffer;
        boolean last;
    }

    private class VideoRecorder implements Runnable {

        private static final String VIDEO_MIME_TYPE = "video/avc";
        private static final String AUDIO_MIME_TYPE = "audio/mp4a-latm";
        private static final int FRAME_RATE = 30;
        private static final int IFRAME_INTERVAL = 1;

        private File videoFile;
        private int videoWidth;
        private int videoHeight;
        private int videoBitrate;
        private boolean videoConvertFirstWrite = true;
        private boolean blendEnabled;

        private Surface surface;
        private android.opengl.EGLDisplay eglDisplay = EGL14.EGL_NO_DISPLAY;
        private android.opengl.EGLContext eglContext = EGL14.EGL_NO_CONTEXT;
        private android.opengl.EGLContext sharedEglContext;
        private android.opengl.EGLConfig eglConfig;
        private android.opengl.EGLSurface eglSurface = EGL14.EGL_NO_SURFACE;

        private MediaCodec videoEncoder;
        private MediaCodec audioEncoder;

        private MediaCodec.BufferInfo videoBufferInfo;
        private MediaCodec.BufferInfo audioBufferInfo;
        private MP4Builder mediaMuxer;
        private ArrayList<AudioBufferInfo> buffersToWrite = new ArrayList<>();
        private int videoTrackIndex = -5;
        private int audioTrackIndex = -5;

        private long lastCommitedFrameTime;
        private long audioStartTime = -1;

        private long currentTimestamp = 0;
        private long lastTimestamp = -1;

        private volatile EncoderHandler handler;

        private final Object sync = new Object();
        private boolean ready;
        private volatile boolean running;
        private volatile int sendWhenDone;
        private long skippedTime;
        private boolean skippedFirst;

        private long desyncTime;
        private long videoFirst = -1;
        private long videoLast;
        private long audioFirst = -1;
        private boolean audioStopedByTime;

        private int drawProgram;
        private int vertexMatrixHandle;
        private int textureMatrixHandle;
        private int positionHandle;
        private int textureHandle;
        private int scaleXHandle;
        private int scaleYHandle;
        private int alphaHandle;
        private int zeroTimeStamps;

        private Integer lastCameraId = 0;

        private AudioRecord audioRecorder;

        private ArrayBlockingQueue<AudioBufferInfo> buffers = new ArrayBlockingQueue<>(10);

        private Runnable recorderRunnable = new Runnable() {

            @Override
            public void run() {
                long audioPresentationTimeUs = -1;
                int readResult;
                boolean done = false;
                while (!done) {
                    if (!running && audioRecorder.getRecordingState() != AudioRecord.RECORDSTATE_STOPPED) {
                        try {
                            audioRecorder.stop();
                        } catch (Exception e) {
                            done = true;
                        }
                        if (sendWhenDone == 0) {
                            break;
                        }
                    }
                    AudioBufferInfo buffer;
                    if (buffers.isEmpty()) {
                        buffer = new AudioBufferInfo();
                    } else {
                        buffer = buffers.poll();
                    }
                    buffer.lastWroteBuffer = 0;
                    buffer.results = 10;
                    for (int a = 0; a < 10; a++) {
                        if (audioPresentationTimeUs == -1) {
                            audioPresentationTimeUs = System.nanoTime() / 1000;
                        }
                        readResult = audioRecorder.read(buffer.buffer, a * 2048, 2048);
                        if (readResult <= 0) {
                            buffer.results = a;
                            if (!running) {
                                buffer.last = true;
                            }
                            break;
                        }
                        buffer.offset[a] = audioPresentationTimeUs;
                        buffer.read[a] = readResult;
                        int bufferDurationUs = 1000000 * readResult / 44100 / 2;
                        audioPresentationTimeUs += bufferDurationUs;
                    }
                    if (buffer.results >= 0 || buffer.last) {
                        if (!running && buffer.results < 10) {
                            done = true;
                        }
                        handler.sendMessage(handler.obtainMessage(MSG_AUDIOFRAME_AVAILABLE, buffer));
                    } else {
                        if (!running) {
                            done = true;
                        } else {
                            try {
                                buffers.put(buffer);
                            } catch (Exception ignore) {

                            }
                        }
                    }
                }
                try {
                    audioRecorder.release();
                } catch (Exception e) {
                    FileLog.e(e);
                }
                handler.sendMessage(handler.obtainMessage(MSG_STOP_RECORDING, sendWhenDone, 0));
            }
        };

        public void startRecording(File outputFile, android.opengl.EGLContext sharedContext) {
            int resolution;
            int bitrate;
            String model = Build.DEVICE;
            if (model == null) {
                model = "";
            }
            if (model.startsWith("zeroflte") || model.startsWith("zenlte")) {
                resolution = 320;
                bitrate = 600000;
            } else {
                resolution = 240;
                bitrate = 400000;
            }

            videoFile = outputFile;
            videoWidth = resolution;
            videoHeight = resolution;
            videoBitrate = bitrate;
            sharedEglContext = sharedContext;

            synchronized (sync) {
                if (running) {
                    return;
                }
                running = true;
                Thread thread = new Thread(this, "TextureMovieEncoder");
                thread.setPriority(Thread.MAX_PRIORITY);
                thread.start();
                while (!ready) {
                    try {
                        sync.wait();
                    } catch (InterruptedException ie) {
                        // ignore
                    }
                }
            }
            handler.sendMessage(handler.obtainMessage(MSG_START_RECORDING));
        }

        public void stopRecording(int send) {
            handler.sendMessage(handler.obtainMessage(MSG_STOP_RECORDING, send, 0));
        }

        public void frameAvailable(SurfaceTexture st, Integer cameraId, long timestampInternal) {
            synchronized (sync) {
                if (!ready) {
                    return;
                }
            }

            long timestamp = st.getTimestamp();
            if (timestamp == 0) {
                zeroTimeStamps++;
                if (zeroTimeStamps > 1) {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.d("fix timestamp enabled");
                    }
                    timestamp = timestampInternal;
                } else {
                    return;
                }
            } else {
                zeroTimeStamps = 0;
            }

            handler.sendMessage(handler.obtainMessage(MSG_VIDEOFRAME_AVAILABLE, (int) (timestamp >> 32), (int) timestamp, cameraId));
        }

        @Override
        public void run() {
            Looper.prepare();
            synchronized (sync) {
                handler = new EncoderHandler(this);
                ready = true;
                sync.notify();
            }
            Looper.loop();

            synchronized (sync) {
                ready = false;
            }
        }

        private void handleAudioFrameAvailable(AudioBufferInfo input) {
            if (audioStopedByTime) {
                return;
            }
            buffersToWrite.add(input);
            if (audioFirst == -1) {
                if (videoFirst == -1) {
                    if (BuildVars.LOGS_ENABLED) {
                        FileLog.d("video record not yet started");
                    }
                    return;
                }
                while (true) {
                    boolean ok = false;
                    for (int a = 0; a < input.results; a++) {
                        if (a == 0 && Math.abs(videoFirst - input.offset[a]) > 100000000L) {
                            desyncTime = videoFirst - input.offset[a];
                            audioFirst = input.offset[a];
                            ok = true;
                            if (BuildVars.LOGS_ENABLED) {
                                FileLog.d("detected desync between audio and video " + desyncTime);
                            }
                            break;
                        }
                        if (input.offset[a] >= videoFirst) {
                            input.lastWroteBuffer = a;
                            audioFirst = input.offset[a];
                            ok = true;
                            if (BuildVars.LOGS_ENABLED) {
                                FileLog.d("found first audio frame at " + a + " timestamp = " + input.offset[a]);
                            }
                            break;
                        } else {
                            if (BuildVars.LOGS_ENABLED) {
                                FileLog.d("ignore first audio frame at " + a + " timestamp = " + input.offset[a]);
                            }
                        }
                    }
                    if (!ok) {
                        if (BuildVars.LOGS_ENABLED) {
                            FileLog.d("first audio frame not found, removing buffers " + input.results);
                        }
                        buffersToWrite.remove(input);
                    } else {
                        break;
                    }
                    if (!buffersToWrite.isEmpty()) {
                        input = buffersToWrite.get(0);
                    } else {
                        return;
                    }
                }
            }

            if (audioStartTime == -1) {
                audioStartTime = input.offset[input.lastWroteBuffer];
            }
            if (buffersToWrite.size() > 1) {
                input = buffersToWrite.get(0);
            }
            try {
                drainEncoder(false);
            } catch (Exception e) {
                FileLog.e(e);
            }
            try {
                boolean isLast = false;
                while (input != null) {
                    int inputBufferIndex = audioEncoder.dequeueInputBuffer(0);
                    if (inputBufferIndex >= 0) {
                        ByteBuffer inputBuffer;
                        if (Build.VERSION.SDK_INT >= 21) {
                            inputBuffer = audioEncoder.getInputBuffer(inputBufferIndex);
                        } else {
                            ByteBuffer[] inputBuffers = audioEncoder.getInputBuffers();
                            inputBuffer = inputBuffers[inputBufferIndex];
                            inputBuffer.clear();
                        }
                        long startWriteTime = input.offset[input.lastWroteBuffer];
                        for (int a = input.lastWroteBuffer; a <= input.results; a++) {
                            if (a < input.results) {
                                if (!running && input.offset[a] >= videoLast - desyncTime) {
                                    if (BuildVars.LOGS_ENABLED) {
                                        FileLog.d("stop audio encoding because of stoped video recording at " + input.offset[a] + " last video " + videoLast);
                                    }
                                    audioStopedByTime = true;
                                    isLast = true;
                                    input = null;
                                    buffersToWrite.clear();
                                    break;
                                }
                                if (inputBuffer.remaining() < input.read[a]) {
                                    input.lastWroteBuffer = a;
                                    input = null;
                                    break;
                                }
                                inputBuffer.put(input.buffer, a * 2048, input.read[a]);
                            }
                            if (a >= input.results - 1) {
                                buffersToWrite.remove(input);
                                if (running) {
                                    buffers.put(input);
                                }
                                if (!buffersToWrite.isEmpty()) {
                                    input = buffersToWrite.get(0);
                                } else {
                                    isLast = input.last;
                                    input = null;
                                    break;
                                }
                            }
                        }
                        audioEncoder.queueInputBuffer(inputBufferIndex, 0, inputBuffer.position(), startWriteTime == 0 ? 0 : startWriteTime - audioStartTime, isLast ? MediaCodec.BUFFER_FLAG_END_OF_STREAM : 0);
                    }
                }
            } catch (Throwable e) {
                FileLog.e(e);
            }
        }

        private void handleVideoFrameAvailable(long timestampNanos, Integer cameraId) {
            try {
                drainEncoder(false);
            } catch (Exception e) {
                FileLog.e(e);
            }
            long dt, alphaDt;
            if (!lastCameraId.equals(cameraId)) {
                lastTimestamp = -1;
                lastCameraId = cameraId;
            }
            if (lastTimestamp == -1) {
                lastTimestamp = timestampNanos;
                if (currentTimestamp != 0) {
                    dt = (System.currentTimeMillis() - lastCommitedFrameTime) * 1000000;
                    alphaDt = 0;
                } else {
                    alphaDt = dt = 0;
                }
            } else {
                alphaDt = dt = (timestampNanos - lastTimestamp);
                lastTimestamp = timestampNanos;
            }
            lastCommitedFrameTime = System.currentTimeMillis();
            if (!skippedFirst) {
                skippedTime += dt;
                if (skippedTime < 200000000) {
                    return;
                }
                skippedFirst = true;
            }
            currentTimestamp += dt;
            if (videoFirst == -1) {
                videoFirst = timestampNanos / 1000;
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.d("first video frame was at " + videoFirst);
                }
            }
            videoLast = timestampNanos;

            GLES20.glUseProgram(drawProgram);
            GLES20.glVertexAttribPointer(positionHandle, 3, GLES20.GL_FLOAT, false, 12, vertexBuffer);
            GLES20.glEnableVertexAttribArray(positionHandle);
            GLES20.glVertexAttribPointer(textureHandle, 2, GLES20.GL_FLOAT, false, 8, textureBuffer);
            GLES20.glEnableVertexAttribArray(textureHandle);
            GLES20.glUniform1f(scaleXHandle, scaleX);
            GLES20.glUniform1f(scaleYHandle, scaleY);
            GLES20.glUniformMatrix4fv(vertexMatrixHandle, 1, false, mMVPMatrix, 0);

            GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
            if (oldCameraTexture[0] != 0) {
                if (!blendEnabled) {
                    GLES20.glEnable(GLES20.GL_BLEND);
                    blendEnabled = true;
                }
                GLES20.glUniformMatrix4fv(textureMatrixHandle, 1, false, moldSTMatrix, 0);
                GLES20.glUniform1f(alphaHandle, 1.0f);
                GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, oldCameraTexture[0]);
                GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
            }
            GLES20.glUniformMatrix4fv(textureMatrixHandle, 1, false, mSTMatrix, 0);
            GLES20.glUniform1f(alphaHandle, cameraTextureAlpha);
            GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, cameraTexture[0]);
            GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);

            GLES20.glDisableVertexAttribArray(positionHandle);
            GLES20.glDisableVertexAttribArray(textureHandle);
            GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, 0);
            GLES20.glUseProgram(0);

            EGLExt.eglPresentationTimeANDROID(eglDisplay, eglSurface, currentTimestamp);
            EGL14.eglSwapBuffers(eglDisplay, eglSurface);

            if (oldCameraTexture[0] != 0 && cameraTextureAlpha < 1.0f) {
                cameraTextureAlpha += alphaDt / 200000000.0f;
                if (cameraTextureAlpha > 1) {
                    GLES20.glDisable(GLES20.GL_BLEND);
                    blendEnabled = false;
                    cameraTextureAlpha = 1;
                    GLES20.glDeleteTextures(1, oldCameraTexture, 0);
                    oldCameraTexture[0] = 0;
                    if (!cameraReady) {
                        cameraReady = true;
                    }
                }
            } else if (!cameraReady) {
                cameraReady = true;
            }
        }

        private void handleStopRecording(final int send) {
            if (running) {
                sendWhenDone = send;
                running = false;
                return;
            }
            try {
                drainEncoder(true);
            } catch (Exception e) {
                FileLog.e(e);
            }
            if (videoEncoder != null) {
                try {
                    videoEncoder.stop();
                    videoEncoder.release();
                    videoEncoder = null;
                } catch (Exception e) {
                    FileLog.e(e);
                }
            }
            if (audioEncoder != null) {
                try {
                    audioEncoder.stop();
                    audioEncoder.release();
                    audioEncoder = null;
                } catch (Exception e) {
                    FileLog.e(e);
                }
            }
            if (mediaMuxer != null) {
                try {
                    mediaMuxer.finishMovie();
                } catch (Exception e) {
                    FileLog.e(e);
                }
            }
            if (send != 0) {
                AndroidUtilities.runOnUIThread(new Runnable() {
                    @Override
                    public void run() {
                        videoEditedInfo = new VideoEditedInfo();
                        videoEditedInfo.roundVideo = true;
                        videoEditedInfo.startTime = -1;
                        videoEditedInfo.endTime = -1;
                        videoEditedInfo.file = file;
                        videoEditedInfo.encryptedFile = encryptedFile;
                        videoEditedInfo.key = key;
                        videoEditedInfo.iv = iv;
                        videoEditedInfo.estimatedSize = Math.max(1, size);
                        videoEditedInfo.framerate = 25;
                        videoEditedInfo.resultWidth = videoEditedInfo.originalWidth = 240;
                        videoEditedInfo.resultHeight = videoEditedInfo.originalHeight = 240;
                        videoEditedInfo.originalPath = videoFile.getAbsolutePath();
                        if (send == 1) {
                            baseFragment.sendMedia(new MediaController.PhotoEntry(0, 0, 0, videoFile.getAbsolutePath(), 0, true), videoEditedInfo);
                        } else {
                            videoPlayer = new VideoPlayer();
                            videoPlayer.setDelegate(new VideoPlayer.VideoPlayerDelegate() {
                                @Override
                                public void onStateChanged(boolean playWhenReady, int playbackState) {
                                    if (videoPlayer == null) {
                                        return;
                                    }
                                    if (videoPlayer.isPlaying() && playbackState == ExoPlayer.STATE_ENDED) {
                                        videoPlayer.seekTo(videoEditedInfo.startTime > 0 ? videoEditedInfo.startTime : 0);
                                    }
                                }

                                @Override
                                public void onError(Exception e) {
                                    FileLog.e(e);
                                }

                                @Override
                                public void onVideoSizeChanged(int width, int height, int unappliedRotationDegrees, float pixelWidthHeightRatio) {

                                }

                                @Override
                                public void onRenderedFirstFrame() {

                                }

                                @Override
                                public boolean onSurfaceDestroyed(SurfaceTexture surfaceTexture) {
                                    return false;
                                }

                                @Override
                                public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {

                                }
                            });
                            videoPlayer.setTextureView(textureView);
                            videoPlayer.preparePlayer(Uri.fromFile(videoFile), "other");
                            videoPlayer.play();
                            videoPlayer.setMute(true);
                            startProgressTimer();

                            AnimatorSet animatorSet = new AnimatorSet();
                            animatorSet.playTogether(
                                    ObjectAnimator.ofFloat(switchCameraButton, "alpha", 0.0f),
                                    ObjectAnimator.ofInt(paint, "alpha", 0),
                                    ObjectAnimator.ofFloat(muteImageView, "alpha", 1.0f));
                            animatorSet.setDuration(180);
                            animatorSet.setInterpolator(new DecelerateInterpolator());
                            animatorSet.start();
                            videoEditedInfo.estimatedDuration = duration;
                            NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.audioDidSent, videoEditedInfo, videoFile.getAbsolutePath());
                        }
                        didWriteData(videoFile, true);
                    }
                });
            } else {
                FileLoader.getInstance(currentAccount).cancelUploadFile(videoFile.getAbsolutePath(), false);
                videoFile.delete();
            }
            EGL14.eglDestroySurface(eglDisplay, eglSurface);
            eglSurface = EGL14.EGL_NO_SURFACE;
            if (surface != null) {
                surface.release();
                surface = null;
            }
            if (eglDisplay != EGL14.EGL_NO_DISPLAY) {
                EGL14.eglMakeCurrent(eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
                EGL14.eglDestroyContext(eglDisplay, eglContext);
                EGL14.eglReleaseThread();
                EGL14.eglTerminate(eglDisplay);
            }
            eglDisplay = EGL14.EGL_NO_DISPLAY;
            eglContext = EGL14.EGL_NO_CONTEXT;
            eglConfig = null;
            handler.exit();
        }

        private void prepareEncoder() {
            try {
                int recordBufferSize = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
                if (recordBufferSize <= 0) {
                    recordBufferSize = 3584;
                }
                int bufferSize = 2048 * 24;
                if (bufferSize < recordBufferSize) {
                    bufferSize = ((recordBufferSize / 2048) + 1) * 2048 * 2;
                }
                for (int a = 0; a < 3; a++) {
                    buffers.add(new AudioBufferInfo());
                }
                audioRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC, 44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
                audioRecorder.startRecording();
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.d("initied audio record with channels " + audioRecorder.getChannelCount() + " sample rate = " + audioRecorder.getSampleRate() + " bufferSize = " + bufferSize);
                }
                Thread thread = new Thread(recorderRunnable);
                thread.setPriority(Thread.MAX_PRIORITY);
                thread.start();

                audioBufferInfo = new MediaCodec.BufferInfo();
                videoBufferInfo = new MediaCodec.BufferInfo();

                MediaFormat audioFormat = new MediaFormat();
                audioFormat.setString(MediaFormat.KEY_MIME, AUDIO_MIME_TYPE);
                audioFormat.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);
                audioFormat.setInteger(MediaFormat.KEY_SAMPLE_RATE, 44100);
                audioFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
                audioFormat.setInteger(MediaFormat.KEY_BIT_RATE, 32000);
                audioFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 2048 * 10);

                audioEncoder = MediaCodec.createEncoderByType(AUDIO_MIME_TYPE);
                audioEncoder.configure(audioFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
                audioEncoder.start();

                videoEncoder = MediaCodec.createEncoderByType(VIDEO_MIME_TYPE);

                MediaFormat format = MediaFormat.createVideoFormat(VIDEO_MIME_TYPE, videoWidth, videoHeight);

                format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
                format.setInteger(MediaFormat.KEY_BIT_RATE, videoBitrate);
                format.setInteger(MediaFormat.KEY_FRAME_RATE, FRAME_RATE);
                format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, IFRAME_INTERVAL);

                videoEncoder.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
                surface = videoEncoder.createInputSurface();
                videoEncoder.start();

                Mp4Movie movie = new Mp4Movie();
                movie.setCacheFile(videoFile);
                movie.setRotation(0);
                movie.setSize(videoWidth, videoHeight);
                mediaMuxer = new MP4Builder().createMovie(movie, isSecretChat);

                AndroidUtilities.runOnUIThread(new Runnable() {
                    @Override
                    public void run() {
                        if (cancelled) {
                            return;
                        }
                        try {
                            performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP, HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING);
                        } catch (Exception ignore) {

                        }
                        AndroidUtilities.lockOrientation(baseFragment.getParentActivity());
                        recording = true;
                        recordStartTime = System.currentTimeMillis();
                        AndroidUtilities.runOnUIThread(timerRunnable);
                        NotificationCenter.getInstance(currentAccount).postNotificationName(NotificationCenter.recordStarted);
                    }
                });
            } catch (Exception ioe) {
                throw new RuntimeException(ioe);
            }

            if (eglDisplay != EGL14.EGL_NO_DISPLAY) {
                throw new RuntimeException("EGL already set up");
            }

            eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
            if (eglDisplay == EGL14.EGL_NO_DISPLAY) {
                throw new RuntimeException("unable to get EGL14 display");
            }
            int[] version = new int[2];
            if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) {
                eglDisplay = null;
                throw new RuntimeException("unable to initialize EGL14");
            }

            if (eglContext == EGL14.EGL_NO_CONTEXT) {
                int renderableType = EGL14.EGL_OPENGL_ES2_BIT;

                int[] attribList = {
                        EGL14.EGL_RED_SIZE, 8,
                        EGL14.EGL_GREEN_SIZE, 8,
                        EGL14.EGL_BLUE_SIZE, 8,
                        EGL14.EGL_ALPHA_SIZE, 8,
                        EGL14.EGL_RENDERABLE_TYPE, renderableType,
                        0x3142, 1,
                        EGL14.EGL_NONE
                };
                android.opengl.EGLConfig[] configs = new android.opengl.EGLConfig[1];
                int[] numConfigs = new int[1];
                if (!EGL14.eglChooseConfig(eglDisplay, attribList, 0, configs, 0, configs.length, numConfigs, 0)) {
                    throw new RuntimeException("Unable to find a suitable EGLConfig");
                }

                int[] attrib2_list = {
                        EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
                        EGL14.EGL_NONE
                };
                eglContext = EGL14.eglCreateContext(eglDisplay, configs[0], sharedEglContext, attrib2_list, 0);
                eglConfig = configs[0];
            }

            int[] values = new int[1];
            EGL14.eglQueryContext(eglDisplay, eglContext, EGL14.EGL_CONTEXT_CLIENT_VERSION, values, 0);

            if (eglSurface != EGL14.EGL_NO_SURFACE) {
                throw new IllegalStateException("surface already created");
            }

            int[] surfaceAttribs = {
                    EGL14.EGL_NONE
            };
            eglSurface = EGL14.eglCreateWindowSurface(eglDisplay, eglConfig, surface, surfaceAttribs, 0);
            if (eglSurface == null) {
                throw new RuntimeException("surface was null");
            }

            if (!EGL14.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
                if (BuildVars.LOGS_ENABLED) {
                    FileLog.e("eglMakeCurrent failed " + GLUtils.getEGLErrorString(EGL14.eglGetError()));
                }
                throw new RuntimeException("eglMakeCurrent failed");
            }
            GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE_MINUS_SRC_ALPHA);

            int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, VERTEX_SHADER);
            int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, FRAGMENT_SHADER);
            if (vertexShader != 0 && fragmentShader != 0) {
                drawProgram = GLES20.glCreateProgram();
                GLES20.glAttachShader(drawProgram, vertexShader);
                GLES20.glAttachShader(drawProgram, fragmentShader);
                GLES20.glLinkProgram(drawProgram);
                int[] linkStatus = new int[1];
                GLES20.glGetProgramiv(drawProgram, GLES20.GL_LINK_STATUS, linkStatus, 0);
                if (linkStatus[0] == 0) {
                    GLES20.glDeleteProgram(drawProgram);
                    drawProgram = 0;
                } else {
                    positionHandle = GLES20.glGetAttribLocation(drawProgram, "aPosition");
                    textureHandle = GLES20.glGetAttribLocation(drawProgram, "aTextureCoord");
                    scaleXHandle = GLES20.glGetUniformLocation(drawProgram, "scaleX");
                    scaleYHandle = GLES20.glGetUniformLocation(drawProgram, "scaleY");
                    alphaHandle = GLES20.glGetUniformLocation(drawProgram, "alpha");
                    vertexMatrixHandle = GLES20.glGetUniformLocation(drawProgram, "uMVPMatrix");
                    textureMatrixHandle = GLES20.glGetUniformLocation(drawProgram, "uSTMatrix");
                }
            }
        }

        public Surface getInputSurface() {
            return surface;
        }

        private void didWriteData(File file, boolean last) {
            if (videoConvertFirstWrite) {
                FileLoader.getInstance(currentAccount).uploadFile(file.toString(), isSecretChat, false, 1, ConnectionsManager.FileTypeVideo);
                videoConvertFirstWrite = false;
                if (last) {
                    FileLoader.getInstance(currentAccount).checkUploadNewDataAvailable(file.toString(), isSecretChat, file.length(), last ? file.length() : 0);
                }
            } else {
                FileLoader.getInstance(currentAccount).checkUploadNewDataAvailable(file.toString(), isSecretChat, file.length(), last ? file.length() : 0);
            }
        }

        public void drainEncoder(boolean endOfStream) throws Exception {
            if (endOfStream) {
                videoEncoder.signalEndOfInputStream();
            }

            ByteBuffer[] encoderOutputBuffers = null;
            if (Build.VERSION.SDK_INT < 21) {
                encoderOutputBuffers = videoEncoder.getOutputBuffers();
            }
            while (true) {
                int encoderStatus = videoEncoder.dequeueOutputBuffer(videoBufferInfo, 10000);
                if (encoderStatus == MediaCodec.INFO_TRY_AGAIN_LATER) {
                    if (!endOfStream) {
                        break;
                    }
                } else if (encoderStatus == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
                    if (Build.VERSION.SDK_INT < 21) {
                        encoderOutputBuffers = videoEncoder.getOutputBuffers();
                    }
                } else if (encoderStatus == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
                    MediaFormat newFormat = videoEncoder.getOutputFormat();
                    if (videoTrackIndex == -5) {
                        videoTrackIndex = mediaMuxer.addTrack(newFormat, false);
                    }
                } else if (encoderStatus >= 0) {
                    ByteBuffer encodedData;
                    if (Build.VERSION.SDK_INT < 21) {
                        encodedData = encoderOutputBuffers[encoderStatus];
                    } else {
                        encodedData = videoEncoder.getOutputBuffer(encoderStatus);
                    }
                    if (encodedData == null) {
                        throw new RuntimeException("encoderOutputBuffer " + encoderStatus + " was null");
                    }
                    if (videoBufferInfo.size > 1) {
                        if ((videoBufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) == 0) {
                            if (mediaMuxer.writeSampleData(videoTrackIndex, encodedData, videoBufferInfo, true)) {
                                didWriteData(videoFile, false);
                            }
                        } else if (videoTrackIndex == -5) {
                            byte[] csd = new byte[videoBufferInfo.size];
                            encodedData.limit(videoBufferInfo.offset + videoBufferInfo.size);
                            encodedData.position(videoBufferInfo.offset);
                            encodedData.get(csd);
                            ByteBuffer sps = null;
                            ByteBuffer pps = null;
                            for (int a = videoBufferInfo.size - 1; a >= 0; a--) {
                                if (a > 3) {
                                    if (csd[a] == 1 && csd[a - 1] == 0 && csd[a - 2] == 0 && csd[a - 3] == 0) {
                                        sps = ByteBuffer.allocate(a - 3);
                                        pps = ByteBuffer.allocate(videoBufferInfo.size - (a - 3));
                                        sps.put(csd, 0, a - 3).position(0);
                                        pps.put(csd, a - 3, videoBufferInfo.size - (a - 3)).position(0);
                                        break;
                                    }
                                } else {
                                    break;
                                }
                            }

                            MediaFormat newFormat = MediaFormat.createVideoFormat("video/avc", videoWidth, videoHeight);
                            if (sps != null && pps != null) {
                                newFormat.setByteBuffer("csd-0", sps);
                                newFormat.setByteBuffer("csd-1", pps);
                            }
                            videoTrackIndex = mediaMuxer.addTrack(newFormat, false);
                        }
                    }
                    videoEncoder.releaseOutputBuffer(encoderStatus, false);
                    if ((videoBufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
                        break;
                    }
                }
            }

            if (Build.VERSION.SDK_INT < 21) {
                encoderOutputBuffers = audioEncoder.getOutputBuffers();
            }
            boolean encoderOutputAvailable = true;
            while (true) {
                int encoderStatus = audioEncoder.dequeueOutputBuffer(audioBufferInfo, 0);
                if (encoderStatus == MediaCodec.INFO_TRY_AGAIN_LATER) {
                    if (!endOfStream || !running && sendWhenDone == 0) {
                        break;
                    }
                } else if (encoderStatus == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
                    if (Build.VERSION.SDK_INT < 21) {
                        encoderOutputBuffers = audioEncoder.getOutputBuffers();
                    }
                } else if (encoderStatus == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
                    MediaFormat newFormat = audioEncoder.getOutputFormat();
                    if (audioTrackIndex == -5) {
                        audioTrackIndex = mediaMuxer.addTrack(newFormat, true);
                    }
                } else if (encoderStatus >= 0) {
                    ByteBuffer encodedData;
                    if (Build.VERSION.SDK_INT < 21) {
                        encodedData = encoderOutputBuffers[encoderStatus];
                    } else {
                        encodedData = audioEncoder.getOutputBuffer(encoderStatus);
                    }
                    if (encodedData == null) {
                        throw new RuntimeException("encoderOutputBuffer " + encoderStatus + " was null");
                    }
                    if ((audioBufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) != 0) {
                        audioBufferInfo.size = 0;
                    }
                    if (audioBufferInfo.size != 0) {
                        if (mediaMuxer.writeSampleData(audioTrackIndex, encodedData, audioBufferInfo, false)) {
                            didWriteData(videoFile, false);
                        }
                    }
                    audioEncoder.releaseOutputBuffer(encoderStatus, false);
                    if ((audioBufferInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
                        break;
                    }
                }
            }
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                if (eglDisplay != EGL14.EGL_NO_DISPLAY) {
                    EGL14.eglMakeCurrent(eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
                    EGL14.eglDestroyContext(eglDisplay, eglContext);
                    EGL14.eglReleaseThread();
                    EGL14.eglTerminate(eglDisplay);
                    eglDisplay = EGL14.EGL_NO_DISPLAY;
                    eglContext = EGL14.EGL_NO_CONTEXT;
                    eglConfig = null;
                }
            } finally {
                super.finalize();
            }
        }
    }
}
