IFD_EXIF          306 modules/dng.c      {exif_ifd,  0, IFD_EXIF},
IFD_EXIF          575 modules/dng.c      get_tag(IFD_EXIF, EXPOSURE_PROGRAM_TAG)->offset = get_exp_program_for_exif(exif_data.exp_program);
IFD_EXIF          576 modules/dng.c      get_tag(IFD_EXIF, METERING_MODE_TAG)->offset = get_metering_mode_for_exif(exif_data.metering_mode);
IFD_EXIF          577 modules/dng.c      get_tag(IFD_EXIF, FLASH_MODE_TAG)->offset = get_flash_mode_for_exif(exif_data.flash_mode, exif_data.flash_fired);
IFD_EXIF          578 modules/dng.c      get_tag(IFD_EXIF, SSTIME_TAG)->count = get_tag(IFD_EXIF, SSTIME_ORIG_TAG)->count = strlen(cam_subsectime)+1;