Hey Jeff,
I just got this working. I think what you forgot to do was
> dynParams.size = sizeof(IMGENC1_DynamicParams) +
> sizeof(IJPEGENC_DynamicParams);
It's the size change that cues the library that extended data is present.
good luck
Chris
On Wed, Jun 18, 2008 at 1:55 PM, Jeff Cooper <[EMAIL PROTECTED]> wrote:
> I'm trying to use the JPEG codec to rotate an image but I'm not having any
> luck with it and was wondering if anyone else has done it.
>
> I'm setting up my dynamic parameters as follows:
> IMGENC1_DynamicParams dynParams;
> IJPEGENC_DynamicParams extDynParams;
>
> /* set the parameters for encoding */
> dynParams.size = sizeof(IMGENC1_DynamicParams);
> dynParams.numAU = XDM_DEFAULT;
> dynParams.inputChromaFormat = CHROMAFORMAT;
> dynParams.inputHeight = VID_HEIGHT;
> dynParams.inputWidth = VID_WIDTH;
> dynParams.captureWidth = VID_WIDTH;
> dynParams.generateHeader = XDM_ENCODE_AU;
> dynParams.qValue = QVALUE;
>
> /* set the extended parameters for encoding */
> extDynParams.imgencDynamicParams = dynParams;
> dynParams.size = sizeof(IJPEGENC_DynamicParams);
> extDynParams.rstInterval = XDM_DEFAULT;
> extDynParams.disableEOI = XDM_DEFAULT;
> extDynParams.rotation = 180;
> extDynParams.customQ = NULL;
>
> Then I call:
>
> imgStatus.size = sizeof(imgStatus);
> if (IMGENC1_control(m_Private->enc, XDM_SETPARAMS, (IMGENC1_DynamicParams
> *)&extDynParams, &imgStatus) ==
> XDM_EFAIL) {
>
> ERROR("Could not set PARAMS."
> << hparam("Error", imgStatus.extendedError));
> return;
> }
>
> I don't have any warning when I compile and I don't get any runtime errors,
> but my image doesn't rotate.
>
> Does anyone see anything obvious that I'm doing wrong?
>
> thanks,
> Jeff
>
> --
> Jeff Cooper // senior embedded software engineer
>
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