public async override Task Produce(IBoundedQueue <T> queue)
{
foreach (var filename in filenames)
{
try
{
logger.NotifyFillstate(queue.Count, this.GetType().Name);
var bmp1 = new Bitmap(filename);
var height = bmp1.Height;
var width = bmp1.Width;
var pixelFormat = bmp1.PixelFormat;
var bmp1Data = bmp1.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, pixelFormat);
var length = bmp1Data.Stride * bmp1Data.Height;
byte[] bmp1Bytes = new byte[length];
Marshal.Copy(bmp1Data.Scan0, bmp1Bytes, 0, length);
var image = factory.FromBytes(width, height, bmp1Bytes);
await queue.Enqueue(image);
bmp1.UnlockBits(bmp1Data);
bmp1.Dispose();
}
catch (Exception e) { Console.WriteLine(e); }
}
queue.CompleteAdding();
}
public async Task Produce(IBoundedQueue <MutableByteImage> sourceQueue)
{
try
{
if (!string.IsNullOrWhiteSpace(_arguments.PathToFfmpeg))
{
FFMpegOptions.Configure(new FFMpegOptions
{
RootDirectory = _arguments.PathToFfmpeg
});
}
var result = await FFProbe.AnalyseAsync(_arguments.InputFile).ConfigureAwait(false);
var width = result.PrimaryVideoStream.Width;
var height = result.PrimaryVideoStream.Height;
var bpp = Image.GetPixelFormatSize(System.Drawing.Imaging.PixelFormat.Format24bppRgb) / 8;
var pixelsPerFrame = width * height;
var frameSizeInBytes = pixelsPerFrame * bpp;
_logger.WriteLine("Input from ffmpeg currently only supports rgb24-convertable input", Verbosity.Warning);
var chunksQueue = BoundedQueueFactory.Get <byte[]>(4, "In-ChuQ");
using var memoryStream = new ChunkedSimpleMemoryStream(frameSizeInBytes, chunksQueue); // new MemoryStream(frameSizeInBytes);
StreamPipeSink sink = new StreamPipeSink(memoryStream);
var args = FFMpegArguments
.FromFileInput(_arguments.InputFile).OutputToPipe(sink, options =>
options.DisableChannel(FFMpegCore.Enums.Channel.Audio)
.UsingMultithreading(true)
.ForceFormat("rawvideo")
.WithCustomArgument(_arguments.CustomArgs ?? string.Empty)
.ForcePixelFormat("bgr24"))
.NotifyOnProgress(
percent => _logger.NotifyFillstate(Convert.ToInt32(percent), "InputVideoParsing"),
TimeSpan.FromSeconds(1));
var produceTask = args.ProcessAsynchronously(true).ContinueWith((_) =>
{
chunksQueue.CompleteAdding();
sourceQueue.CompleteAdding();
});
var consumeTask = ParseInputStream(sourceQueue, chunksQueue, width, height, memoryStream)
.ContinueWith((_) => _logger.WriteLine("finished reading", Verbosity.Info));
await Task.WhenAll(produceTask, consumeTask);
_logger.WriteLine("finished reading", Verbosity.Info);
}
catch (System.ComponentModel.Win32Exception)
{
_logger.WriteLine("Couldn't find ffmpeg", Verbosity.Error);
}
catch (Exception e)
{
_logger.LogException(e);
}
}
public async override Task Produce(IBoundedQueue <T> queue)
{
for (int i = 0; i < count; i++)
{
logger.NotifyFillstate(i, "TestData");
var data = new byte[data1.Length];
((i % 2 == 0) ? data1 : data2).CopyTo(data, 0);
await queue.Enqueue(factory.FromBytes(width, height, data, format));
}
queue.CompleteAdding();
}
private async Task ReadFromDisk()
{
int i = 0;
foreach (var filename in filenames)
{
try
{
logger.NotifyFillstate(dataToParse.Count, "ReadBuffer");
logger.NotifyFillstate(i, "FilesRead");
await dataToParse.Enqueue(new MemoryStream(File.ReadAllBytes(filename), false));
i++;
}
catch (Exception e) { Console.WriteLine(e); }
}
dataToParse.CompleteAdding();
}
public async override Task Produce(IBoundedQueue <T> queue)
{
var bytesToRead = Width * Height * Image.GetPixelFormatSize(Format);
while (this.InputStream.CanRead)
{
try
{
var bm = new Bitmap(
Width,
Height,
Width,
Format,
Marshal.UnsafeAddrOfPinnedArrayElement(this.InputStream.ReadBytes(bytesToRead), 0));
await queue.Enqueue(factory.FromImage(bm));
}
catch (Exception e) { logger.LogException(e); }
}
queue.CompleteAdding();
}
public override async Task Produce(IBoundedQueue <T> queue)
{
var readingTask = Task.Run(() => ReadFromDisk());
var decodingTasks = Task.WhenAll(Enumerable.Range(0, 6).Select(x => Task.Run(() => DecodeImage(queue)))).ContinueWith(t => queue.CompleteAdding());
await Task.WhenAll(decodingTasks, readingTask);
if (decodingTasks.IsFaulted || readingTask.IsFaulted)
{
throw decodingTasks.Exception
?? readingTask.Exception
?? new Exception("unkown stuff happened");
}
}
