Android 推流到Web 播放视频 使用RTMP码流播放

前景：项目需要闲暇开发结合公司业务需求 因业务需求量不大未接入融合通信之类的付费 开发一款VR带摄像头眼镜 远程指挥调度 web播放 目前只做到实时播放音视频 未双方通信 

作为一个java开发工程师 android 真是难为我 还好能看懂直接写过一些 多数借鉴于  http://www.tangokk.com

Android 思路：调取摄像头录屏实施推流

第一步：打开摄像头

　　　　

try {
            cameraDevice = Camera.open();
        } catch (Exception e){
            Log.e(LOG_TAG, "camera open fail, if it's occupied by other applications");
            finish();
            return;
        }
     

 

第二步：录制实时推送到服务器

　　　　

  class CameraView extends SurfaceView implements SurfaceHolder.Callback, PreviewCallback {

        private SurfaceHolder mHolder;
        private Camera mCamera;

        public CameraView(Context context, Camera camera) {
            super(context);
            Log.w("camera", "camera view");
            mCamera = camera;
            mHolder = getHolder();
            mHolder.addCallback(CameraView.this);
            mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
            mCamera.setPreviewCallback(CameraView.this);
            mCamera.setDisplayOrientation(90);
        }

        @Override
        public void surfaceCreated(SurfaceHolder holder) {
            try {
                stopPreview();
                mCamera.setPreviewDisplay(holder);
            } catch (IOException exception) {
                mCamera.release();
                mCamera = null;
            }
        }

        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
            stopPreview();

            Camera.Parameters camParams = mCamera.getParameters();
            List<Camera.Size> sizes = camParams.getSupportedPreviewSizes();
            // Sort the list in ascending order
            Collections.sort(sizes, new Comparator<Camera.Size>() {

                public int compare(final Camera.Size a, final Camera.Size b) {
                    return a.width * a.height - b.width * b.height;
                }
            });

            // Pick the first preview size that is equal or bigger, or pick the last (biggest) option if we cannot
            // reach the initial settings of imageWidth/imageHeight.
            for (int i = 0; i < sizes.size(); i++) {
                if ((sizes.get(i).width >= imageWidth && sizes.get(i).height >= imageHeight) || i == sizes.size() - 1) {
                    imageWidth = sizes.get(i).width;
                    imageHeight = sizes.get(i).height;
                    Log.v(LOG_TAG, "Changed to supported resolution: " + imageWidth + "x" + imageHeight);
                    break;
                }
            }
            camParams.setPreviewSize(imageWidth, imageHeight);

            Log.v(LOG_TAG, "Setting imageWidth: " + imageWidth + " imageHeight: " + imageHeight + " frameRate: " + frameRate);

            camParams.setPreviewFrameRate(frameRate);
            Log.v(LOG_TAG, "Preview Framerate: " + camParams.getPreviewFrameRate());

            mCamera.setParameters(camParams);

            // Set the holder (which might have changed) again
            try {
                mCamera.setPreviewDisplay(holder);
                mCamera.setPreviewCallback(CameraView.this);
                startPreview();
            } catch (Exception e) {
                Log.e(LOG_TAG, "Could not set preview display in surfaceChanged");
            }
        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            try {
                mHolder.addCallback(null);
                mCamera.setPreviewCallback(null);
            } catch (RuntimeException e) {
                // The camera has probably just been released, ignore.
            }
        }

        public void startPreview() {
            if (!isPreviewOn && mCamera != null) {
                isPreviewOn = true;
                mCamera.startPreview();
            }
        }

        public void stopPreview() {
            if (isPreviewOn && mCamera != null) {
                isPreviewOn = false;
                mCamera.stopPreview();
            }
        }

        @Override
        public void onPreviewFrame(byte[] data, Camera camera) {
            if (audioRecord == null || audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
                startTime = System.currentTimeMillis();
                return;
            }
            if (RECORD_LENGTH > 0) {
                int i = imagesIndex++ % images.length;
                yuvImage = images[i];
                timestamps[i] = 1000 * (System.currentTimeMillis() - startTime);
            }
            /* get video data */
            if (yuvImage != null && recording) {
                ((ByteBuffer) yuvImage.image[0].position(0)).put(data);

                if (RECORD_LENGTH <= 0) try {
                    Log.v(LOG_TAG, "Writing Frame");
                    long t = 1000 * (System.currentTimeMillis() - startTime);
                    if (t > recorder.getTimestamp()) {
                        recorder.setTimestamp(t);
                    }
                    recorder.record(yuvImage);
                } catch (FFmpegFrameRecorder.Exception e) {
                    Log.v(LOG_TAG, e.getMessage());
                    e.printStackTrace();
                }
            }
        }
    }
}

 

后端接流播放：2022年了rtmp不能播放了难受  而且目前来看大多数都没有好的解决方案 要不然就是技术封闭 付费挡道。

效果图

 

 电脑能够播放但是多数浏览器不知道rtmp 码流只能切换其他码流 如ws之类的 感兴趣的同学可以一起来 

qq 1552138571 邮箱1552138571@qq.com

目前使用的nginx + nginx-rtmp 现在正在更改码流转化接入java 使用 springboot接收 用cmd  来操作 ffmpeg 目前还为完成转换