public void FfmpegWrapper_GetImagesFromMedia_Returns_Expected_Values(int requestedFrameCount)
{
CreateTestVideoIfNecessary();
var ffmpegWrapper = new FfmpegWrapper(FfmpegExecutablePath);
var images = ffmpegWrapper.GetImagesFromMedia(
TestVideoFileName,
requestedFrameCount,
CancellationToken.None)
.ToList();
CollectionAssert.AllItemsAreNotNull(images);
Assert.AreEqual(requestedFrameCount, images.Count);
foreach (var image in images)
{
Assert.AreEqual(TestVideoWidth, image.Width);
Assert.AreEqual(TestVideoHeight, image.Height);
}
}
public async Task FfmpegWrapper_GetImagesFromMedia_Returns_Expected_Values(int requestedFrameCount)
{
CreateTestVideoIfNecessary();
var ffmpegWrapper = new FfmpegWrapper(FfmpegExecutablePath);
var images = ffmpegWrapper.GetImagesFromMedia(
TestVideoFileName,
requestedFrameCount,
CancellationToken.None)
.ToList();
CollectionAssert.AllItemsAreNotNull(images);
Assert.AreEqual(requestedFrameCount, images.Count);
foreach (var bitmapStream in images)
{
var imageInfo = await Task.Run(() => ImageFileInfo.Load(bitmapStream));
Assert.AreEqual(TestVideoWidth, imageInfo.Frames[0].Width);
Assert.AreEqual(TestVideoHeight, imageInfo.Frames[0].Height);
}
}
public IReadOnlyDictionary <IBarGenerator, Bitmap> CreateBarCodes(
BarCodeParameters parameters,
FfmpegWrapper ffmpeg,
CancellationToken cancellationToken,
IProgress <double> progress = null,
Action <string> log = null)
{
var barCount = (int)Math.Round((double)parameters.Width / parameters.BarWidth);
var bitmapStreamSource = ffmpeg.GetImagesFromMedia(parameters.InputPath, barCount, cancellationToken, log);
var barGenerators = parameters.GeneratorOutputPaths.Keys.ToArray();
Bitmap[] finalBitmaps = new Bitmap[barGenerators.Length];
Graphics[] finalBitmapGraphics = new Graphics[barGenerators.Length];
int actualBarHeight = 0;
int x = 0;
foreach (var bitmapStream in bitmapStreamSource)
{
if (x == 0)
{
var imageInfo = ImageFileInfo.Load(bitmapStream);
actualBarHeight = parameters.Height ?? imageInfo.Frames.First().Height;
for (int i = 0; i < barGenerators.Length; i++)
{
finalBitmaps[i] = new Bitmap(parameters.Width, actualBarHeight);
finalBitmapGraphics[i] = Graphics.FromImage(finalBitmaps[i]);
}
}
using (bitmapStream)
{
for (int i = 0; i < barGenerators.Length; i++)
{
bitmapStream.Position = 0;
var bar = barGenerators[i].GetBar(bitmapStream, parameters.BarWidth, actualBarHeight);
var srcRect = new Rectangle(0, 0, bar.Width, bar.Height);
var destRect = new Rectangle(x, 0, parameters.BarWidth, actualBarHeight);
finalBitmapGraphics[i].DrawImage(bar, destRect, srcRect, GraphicsUnit.Pixel);
}
x += parameters.BarWidth;
progress?.Report((double)x / parameters.Width);
}
}
for (int i = 0; i < barGenerators.Length; i++)
{
finalBitmapGraphics[i]?.Dispose();
}
var result = new Dictionary <IBarGenerator, Bitmap>();
for (int i = 0; i < barGenerators.Length; i++)
{
result.Add(barGenerators[i], finalBitmaps[i]);
}
return(result);
}