how to convert byte[] into BitmapFrame c#

Question

I have tryed this but have exception - Operation is not valide due to current state of the object

private BitmapFrame backconvertor(byte[] incomingBuffer)
    {
        BitmapImage bmpImage = new BitmapImage();
        MemoryStream mystream = new MemoryStream(incomingBuffer);
        bmpImage.StreamSource = mystream;
        BitmapFrame bf = BitmapFrame.Create(bmpImage);
        return bf;
    }

Error rising when I am trying to

return backconvertor(buff);

in other function (buff - is ready!)

no. there is a library and I need only ONE function byte[]-> BitmapFrame — curiousity, Nov 28 '11 at 15:41

score 2 · Answer 1 · answered Nov 28 '11 at 15:52

2

Documentation indicates that in order to initialize the image, you need to do it between BeginInit and EndInit. That is:

bmpImage.BeginInit();
bmpImage.StreamSource = mystream;
bmpImage.EndInit();

Or, you can pass the stream to the constructor:

bmpImage = new BitmapImage(mystream);

See http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapimage.begininit.aspx for an example and more discussion of BeginInit.

answered Nov 28 '11 at 15:52

Jim Mischel

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still error(( "No imaging component for this operation found" in bmpImage.EndInit(); line – curiousity Nov 28 '11 at 16:41
1

@curiousity: Of course it does not work if you use `CopyPixels`, that method does not copy any meta-information which is expected by `BitmapImage`. `BitmapImage` expects a fully encoded stream, with file format header. – H.B. Nov 28 '11 at 18:19

score 1 · Answer 2 · answered Mar 21 '16 at 16:40

This is what I have in a WPF Converter to handle byte to BitmapFrame and it works perfectly:

            var imgBytes = value as byte[];
            if (imgBytes == null)
                return null;
            using (var stream = new MemoryStream(imgBytes))
            {
                return BitmapFrame.Create(stream,
                    BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
            }

Also its thread safe as I have used it in Task.Run before also.

how to convert byte[] into BitmapFrame c#

2 Answers2