[android-developers] BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

I am trying to decode ARGB byte array into bitmap to display it as an
image view. I tried using BitmapFactory's decodeByteArray() and
decodeStream() but both way gives null as Bitmap.

But when I create bitmap using createBitmap () and setPixels it works
perfect. Here is the working code. data is the byte array of size
imageWidth*imageHeight*4

int[] pixels=new int[imageWidth*imageHeight];


int i=0,j=0;
while (ihttp://groups.google.com/group/android-developers?hl=en

Re: [android-developers] BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

 Hello Oscar,

Thanks for the reply.
But I already  tried this approach.

ByteArrayInputStream imageStream = new ByteArrayInputStream(data);

Bitmap theImage = BitmapFactory.decodeStream(imageStream);

*theImage* returned by *decodeStream* is null.


Regards

Siji

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Re: [android-developers] Re: BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

Thanks for the reply Zsolt.
My data stream comes from h264 video decoder , which is native.
Format of this data stream is  ARGB.
Please note that I could display this image correctly using
Bitmap. createBitmap()
 and
setPixels ()  .

Regards
Siji

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Re: [android-developers] Re: BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

 Thanks Donug,

I think , this will help. Let me try...

Regards
Siji

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Re: [android-developers] Re: BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

Donug, You mean to use bitmap.h ??
Could you please provide me some sample code in C  for setting pixels of
bitmap.
I have data in
 jbyteArray out_buf.

How to set out_buf as pixels of bitmap??
Thanks in advance.

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Re: [android-developers] Re: BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

.Donug,
My issue is already solved.
 Thanks any way.

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Re: [android-developers] Re: BitmapFactory 's decodeByteArray and decodeStream returns null

[Siji T G]

Sorry for that typo.

Actually it was a bug in my h264 video decoding native code ,which caused
the problems
And i am still a new be in C.

As I now understand  decodeByteArray() can decode compressed image data of
format PNG and JPG
and my image data is of type ARGB.

 Any way my problems solved.
Thanks every one , for the help.


Regards
Siji

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