Change MPEG4 resolution dynamically on AV_SERVER

I have a inquiry about ALG_vidEncSetImageSize function which involves in EUCDK_GA1.5/av_capture/framework/alg/src/alg_vidEnc.c. This function can change the resolution of ALG_VID_CODEC_H264 and ALG_VID_CODEC_MJPEG dynamically. But this function does not judge the MPEG4. However, I have add the MPEG4 support at blow marked. Unfortunately, they modify this way will encounter unnormal content like green display. So, I want to confirm that change the MPEG4 resolution dynamically whether is support or not.

int ALG_vidEncSetImageSize(void *hndl, Uint16 width, Uint16 height)
{
  ALG_VidEncObj *pObj = (ALG_VidEncObj*)hndl;
  XDAS_Int32         status;
  static Uint16 savedWidth0 = 640, savedHeight0=480;
  static Uint16 savedWidth1 = 640, savedHeight1=480;
  static int count=0;

  if(pObj->createPrm.codec == ALG_VID_CODEC_H264)            // change to  if(pObj->createPrm.codec == ALG_VID_CODEC_H264 || pObj->createPrm.codec == ALG_VID_CODEC_MPEG4) 

  {
     /* check for change in resolution */
    if (savedWidth0 != width ||savedHeight0 != height )
    {
     savedWidth0 = width;
  savedHeight0 = height;
  count = 30;
  OSA_printf("ALG_vidEncSetImageSize %d x %d\n", width, height);
    }

   // set 30 times for fast switching
    if (count == 0)
     return OSA_SOK;
    count--;
   
     /* Reset the encoder */
  status = VIDENC1_control(pObj->hEncode,
       XDM_RESET,
       (VIDENC1_DynamicParams*)&pObj->dynamicParams,
       &pObj->encStatus);

  pObj->createPrm.width = width;
  pObj->createPrm.height = height;

  pObj->dynamicParams.inputHeight = pObj->createPrm.height;
  pObj->dynamicParams.inputWidth = pObj->createPrm.width;
  /* Set new input resolution*/
  status = VIDENC1_control(pObj->hEncode,
       XDM_SETPARAMS,
       (VIDENC1_DynamicParams*)&pObj->dynamicParams,
       &pObj->encStatus);
   
   
     if (status != VIDENC1_EOK)
         return OSA_EFAIL;
     else
       return OSA_SOK;
   }else   if(pObj->createPrm.codec == ALG_VID_CODEC_MJPEG) {
     /* check for change in resolution */
    if (savedWidth1 != width ||savedHeight1 != height )
    {
     savedWidth1 = width;
     savedHeight1 = height;
    ALG_jpgEncSetFormat(pObj->hJpgEncode, width, height);
  //OSA_printf("ALG_VID_CODEC_MJPEG ALG_vidEncSetImageSize %d x %d\n", width, height);
    }
   }
 
}

B.R.

Omin