public byte[] GetBitmapFromVideoAsByte(string videoFile, double position, FFMpegImageSize imageSize)
{
var intermediateFile = this.temporaryFilesStorage.GetIntermediateFile(".jpg");
try
{
var quality = imageSize.ToString().ToLower();
var parameters = string.Format(
CultureInfo.InvariantCulture,
"-ss {1} -i \"{0}\" -vframes 1 -s {2} \"{3}\"",
videoFile,
position,
quality,
intermediateFile);
var command = new FFMpegCommand(pathToFfMpegExe, parameters, true);
this.ExecuteFFMpegCommand(command, "ExtractFrame");
using (var fs = new FileStream(intermediateFile, FileMode.Open, FileAccess.Read))
{
var byteImage = new byte[fs.Length];
fs.Read(byteImage, 0, (int)fs.Length);
this.LogMessage("ExtractFrame", "RETURN: " + byteImage.Length);
return(byteImage);
}
}
catch (Exception e)
{
this.LogMessage("ExtractFrame error:", e.GetFullMessage());
throw;
}
}
public byte[] GetFrameFromVideoAsByte(string videoFile, double positionMs, FFMpegImageSize imageSize)
{
using (var tempFileStorage = new TemporaryFilesStorage())
{
using (var mhandler = new FFMpeg(tempFileStorage))
{
return(mhandler.GetBitmapFromVideoAsByte(videoFile, positionMs, imageSize));
}
}
}
public async Task <byte[]> GetFrameFromVideoAsByteAsync(string videoFile, double positionMs, FFMpegImageSize imageSize)
{
return(await await Task.Factory.StartNew(
async() =>
{
using (var tempFileStorage = new TemporaryFilesStorage())
{
using (var mhandler = new FFMpeg(tempFileStorage))
{
return mhandler.GetBitmapFromVideoAsByte(videoFile, positionMs, imageSize);
}
}
},
TaskCreationOptions.RunContinuationsAsynchronously));
}
