When I try and run the jpegencoder demo using a different chroma format
I get the IMGENC_process() failing.

 

The following configuration combinations and their results:

 

IMGENC_Params          IMGENC_DynamicParams          Result

XDM_YUV_420P            XDM_YUV_420P
IMGENC_process() failed with a fatal error (-1 ext: 0xxa000

XDM_YUV_420P            XDM_YUV_422P                        error: can't
set dyn params 0xc000

XDM_YUV_420P            XDM_YUV_422ILE                     works

XDM_YUV_422P            XDM_YUV_420P                        error: can't
set dyn params 0xc000

XDM_YUV_422P            XDM_YUV_422P
IMGENC_process() failed with a fatal error (-1 ext: 0xxa000

XDM_YUV_422P            XDM_YUV_422ILE                     creates an
image but the image looks like a combination of 2 images

XDM_YUV_422ILE         XDM_YUV_420P                        error: can't
set dyn params 0xc000

XDM_YUV_422ILE         XDM_YUV_422P                        error: can't
set dyn params 0xc000

XDM_YUV_422ILE         XDM_YUV_422ILE                     error: can't
set dyn params 0xc000

XDM_GRAY                  XDM_YUV_420P                        creates an
image but it's the wrong resolution (its zoomed in) & weird

XDM_GRAY                  XDM_YUV_422P                        creates an
image but it's the wrong resolution (its zoomed in) & weird

XDM_GRAY                  XDM_YUV_422ILE                     correct
resolution & gray

XDM_GRAY                  XDM_GRAY                              creates
an image but it's the wrong resolution (its zoomed in) & weird

 

 

I'm trying to create an image that I can stream in an MJPEG stream.
Therefore I would like to create a non-interlaced 4:2:0 or 4:2:2 D1
resolution image. But that doesn't seem possible to do. Any help also
with being able to use a JPEG image created by the DSP for use within an
MJPEG stream would be helpful. At the moment I only seem to be able to
create a stream that when viewed using VLC creates a window the correct
size but apart from a few small patterns in the top left hand corner the
rest is green (undefined I'm guessing). I'm using live555 to stream the
MJPEG.

 

Thanks,

 

Alex

 

 

 

Alex Tarter

Ultra Electronics

Sonar & Communication Systems

Tel: +44 (0)20 8813 4527

Mobile: +44 (0)772 018 2267

www.ultra-electronics.com

 



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