public static async Task <byte[]> ResizeImageTizen(byte[] imageData, float width, float height)
{
using (JpegDecoder jpegDecoder = new JpegDecoder())
{
Size newImageSize = new Size((int)width, (int)height);
IEnumerable <BitmapFrame> image = await jpegDecoder.DecodeAsync(imageData);
Size oldImageSize = image.First().Size;
byte[] rawImageData = image.First().Buffer;
using (MediaPacket mediaPacket = MediaPacket.Create(new VideoMediaFormat(MediaFormatVideoMimeType.Rgba, oldImageSize)))
{
mediaPacket.VideoPlanes[0].Buffer.CopyFrom(rawImageData, 0, rawImageData.Length);
using (ImageTransformer imageTransformer = new ImageTransformer())
{
using (MediaPacket newMediaPacket = await imageTransformer.TransformAsync(mediaPacket, new ResizeTransform(newImageSize)))
{
IMediaBuffer buffer = newMediaPacket.VideoPlanes[0].Buffer;
byte[] newRawImageData = new byte[buffer.Length];
buffer.CopyTo(newRawImageData, 0, buffer.Length);
using (var jpegEncoder = new JpegEncoder())
{
jpegEncoder.Quality = 100;
jpegEncoder.SetResolution(newImageSize);
using (MemoryStream ms = new MemoryStream())
{
await jpegEncoder.EncodeAsync(newRawImageData, ms);
return(ms.ToArray());
}
}
}
}
}
}
}
private async Task <string> EncodeAsync(Func <Task <ThumbnailExtractionResult> > extractFunc)
{
var result = await extractFunc();
File.Delete(ThumbnailPath);
using (var encoder = new JpegEncoder())
using (var fs = File.Create(ThumbnailPath))
{
encoder.SetColorSpace(ColorSpace.Bgra8888);
encoder.SetResolution(result.Size);
await encoder.EncodeAsync(result.RawData, fs);
return(ThumbnailPath);
}
}