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);
}
}
private (ChunkedSimpleMemoryStream chunkedStream, byte[] bytes, IBoundedQueue <byte[]> concurrentQueue) Prepare(int bytesData, int bytesPerChunk)
{
var concurrentQueue = BoundedQueueFactory.Get <byte[]>(32);
var chunkedStream = new ChunkedSimpleMemoryStream(bytesPerChunk, concurrentQueue);
var bytes = new byte[bytesData];
var random = new Random();
random.NextBytes(bytes);
return(chunkedStream, bytes, concurrentQueue);
}
