AVChatExternalVideoCapturer.java

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/*
 * Copyright (c) 2014-2018 NetEase, Inc.
 * All right reserved.
 */

package com.netease.nimlib.sdk.avchat.video;

import android.os.SystemClock;

import com.netease.nimlib.log.NimLog;
import com.netease.nimlib.sdk.avchat.AVChatManager;
import com.netease.nimlib.sdk.avchat.model.AVChatImageFormat;
import com.netease.nrtc.sdk.video.ExternalVideoCapturer;
import com.netease.nrtc.sdk.video.IVideoCapturer;
import com.netease.nrtc.sdk.video.VideoFrame;

import com.netease.nrtc.utility.video.VideoUtils;


public abstract class AVChatExternalVideoCapturer extends ExternalVideoCapturer implements AVChatVideoCapturer {

    public abstract void startCapture(int width, int height, int frameRate);

    public abstract void stopCapture() throws InterruptedException;

    public abstract void changeCaptureFormat(int width, int height, int frameRate);

    public abstract void dispose();


    @Override
    public IVideoCapturer asVideoCapturer() {
        return this;
    }


    public void onCapturerStarted(boolean success) {
        VideoCapturerObserver observer = AVChatExternalVideoCapturer.super.getVideoCapturerObserver();
        if (observer != null) {
            observer.onCapturerStarted(success);
        }
    }


    public void onCapturerStopped() {
        VideoCapturerObserver observer = AVChatExternalVideoCapturer.super.getVideoCapturerObserver();
        if (observer != null) {
            observer.onCapturerStopped();
        }
    }


    public int onByteBufferFrameCaptured(byte[] data,
                                         int dataLen,
                                         int width,
                                         int height,
                                         int rotation,
                                         int frameRate,
                                         int format,
                                         long timeStamp,
                                         boolean mirror) {

        int ret = -10;
        VideoCapturerObserver observer = AVChatExternalVideoCapturer.super.getVideoCapturerObserver();

        if (data == null) {
            NimLog.e("AVChatExternalVideoCapturer", "data is null");
            return -1;
        }

        if (data.length < dataLen || VideoUtils.calcBufferSize(format, width, height) != data.length) {
            NimLog.e("AVChatExternalVideoCapturer", "Illegal data length!");
            return -2;
        }

        try {
            VideoFrame.Buffer buffer = VideoFrame.asBuffer(data, format, width, height);
            VideoFrame videoFrame = new VideoFrame(buffer, rotation, timeStamp);
            if (observer != null) {
                ret = observer.onFrameCaptured(videoFrame, frameRate, mirror);
            }

            videoFrame.release();
        } catch (IllegalAccessException e) {
            NimLog.e("AVChatExternalVideoCapturer", " onByteBufferFrameCaptured " + e);
        }

        return ret;
    }
}