[Live Now] Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Join for FREE! Join TestMu Conference

How to use BitmapToByteArray method of FlaUI.Core.Capturing.VideoRecorder class

Best FlaUI code snippet using FlaUI.Core.Capturing.VideoRecorder.BitmapToByteArray

VideoRecorder.cs

Source:VideoRecorder.cs

...74                using (var img = _captureMethod(this))75                {76                    var image = new ImageData77                    {78                        Data = BitmapToByteArray(img.Bitmap),79                        Width = img.Bitmap.Width,80                        Height = img.Bitmap.Height81                    };82                    _frames.Add(image);83                    ++frameCount;84                }85                var timeTillNextFrame = timestamp + frameInterval - DateTime.UtcNow;86                if (timeTillNextFrame > TimeSpan.Zero)87                {88                    await Task.Delay(timeTillNextFrame);89                }90            }91            if (totalMissedFrames > 0)92            {93                Logger.Default.Warn($"Totally added {totalMissedFrames} missing frame(s) to \"{Path.GetFileName(TargetVideoPath)}\".");94            }95        }96        private void WriteLoop()97        {98            var videoPipeName = $"flaui-capture-{Guid.NewGuid()}";99            var ffmpegIn = new NamedPipeServerStream(videoPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous, 10000, 10000);100            const string pipePrefix = @"\\.\pipe\";101            Process ffmpegProcess = null;102            var isFirstFrame = true;103            ImageData lastImage = null;104            while (!_frames.IsCompleted)105            {106                _frames.TryTake(out var img, -1);107                if (img == null)108                {109                    // Happens when the queue is marked as completed110                    continue;111                }112                if (isFirstFrame)113                {114                    isFirstFrame = false;115                    Directory.CreateDirectory(new FileInfo(TargetVideoPath).Directory.FullName);116                    var videoInFormat = _settings.UseCompressedImages ? "" : "-f rawvideo"; // Used when sending raw bitmaps to the pipe117                    var videoInArgs = $"-framerate {_settings.FrameRate} {videoInFormat} -pix_fmt rgb32 -video_size {img.Width}x{img.Height} -i {pipePrefix}{videoPipeName}";118                    var videouOutCodec = _settings.VideoFormat == VideoFormat.x264119                        ? $"-c:v libx264 -crf {_settings.VideoQuality} -pix_fmt yuv420p -preset ultrafast"120                        : $"-c:v libxvid -qscale:v {_settings.VideoQuality}";121                    var videoOutArgs = $"{videouOutCodec} -r {_settings.FrameRate} -vf \"scale={img.Width.Even()}:{img.Height.Even()}\"";122                    ffmpegProcess = StartFFMpeg(_settings.ffmpegPath, $"-y -hide_banner -loglevel warning {videoInArgs} {videoOutArgs} \"{TargetVideoPath}\"");123                    ffmpegIn.WaitForConnection();124                }125                if (img.IsRepeatFrame)126                {127                    // Repeat the last frame128                    ffmpegIn.WriteAsync(lastImage.Data, 0, lastImage.Data.Length);129                }130                else131                {132                    // Write the received frame and save it as last image133                    ffmpegIn.WriteAsync(img.Data, 0, img.Data.Length);134                    if (lastImage != null)135                    {136                        lastImage.Dispose();137                        lastImage = null;138                        GC.Collect();139                    }140                    lastImage = img;141                }142            }143            ffmpegIn.Flush();144            ffmpegIn.Close();145            ffmpegIn.Dispose();146            ffmpegProcess?.WaitForExit();147        }148        /// <summary>149        /// Starts recording.150        /// </summary>151        private void Start()152        {153            _shouldRecord = true;154            _recordStartTime = DateTime.UtcNow;155            _recordTask = Task.Factory.StartNew(async () => await RecordLoop(), TaskCreationOptions.LongRunning);156            _writeTask = Task.Factory.StartNew(WriteLoop, TaskCreationOptions.LongRunning);157        }158        /// <summary>159        /// Stops recording and finishes the video file.160        /// </summary>161        public void Stop()162        {163            if (_recordTask != null)164            {165                _shouldRecord = false;166                _recordTask.Wait();167                _recordTask = null;168            }169            _frames.CompleteAdding();170            if (_writeTask != null)171            {172                try173                {174                    _writeTask.Wait();175                    _writeTask = null;176                }177                catch (Exception ex)178                {179                    Logger.Default.Warn(ex.Message, ex);180                }181            }182        }183        public void Dispose()184        {185            Stop();186        }187        private Process StartFFMpeg(string exePath, string arguments)188        {189            var process = new Process190            {191                StartInfo =192                    {193                        FileName = exePath,194                        Arguments = arguments,195                        UseShellExecute = false,196                        CreateNoWindow = true,197                        RedirectStandardError = true,198                        RedirectStandardInput = true,199                        RedirectStandardOutput = true,200                    },201                EnableRaisingEvents = true202            };203            process.OutputDataReceived += OnProcessDataReceived;204            process.ErrorDataReceived += OnProcessDataReceived;205            process.Start();206            if (_settings.EncodeWithLowPriority)207            {208                process.PriorityClass = ProcessPriorityClass.BelowNormal;209            }210            process.BeginErrorReadLine();211            return process;212        }213        private void OnProcessDataReceived(object s, DataReceivedEventArgs e)214        {215            if (!String.IsNullOrWhiteSpace(e.Data))216            {217                Logger.Default.Info(e.Data);218            }219        }220        private byte[] BitmapToByteArray(Bitmap bitmap)221        {222            using (var stream = new MemoryStream())223            {224                bitmap.Save(stream, _settings.UseCompressedImages ? ImageFormat.Png : ImageFormat.Bmp);225                return stream.ToArray();226            }227            // Previous way228            BitmapData bmpdata = null;229            try230            {231                bmpdata = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);232                var numbytes = Math.Abs(bmpdata.Stride) * bitmap.Height;233                var bytedata = new byte[numbytes];234                var ptr = bmpdata.Scan0;...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.