@@ -427,6 +427,18 @@ int DNGWriter::write(const char *filename, const Camera *camera,
/* Create a new IFD for the EXIF data and fill it. */
TIFFCreateEXIFDirectory(tif);
+ /* Store creation time. */
+ time_t rawtime;
+ struct tm *timeinfo;
+ char strTime[20];
+
+ time(&rawtime);
+ timeinfo = localtime(&rawtime);
+ strftime(strTime, 20, "%Y:%m:%d %H:%M:%S", timeinfo);
+
+ TIFFSetField(tif, EXIFTAG_DATETIMEORIGINAL, strTime);
+ TIFFSetField(tif, EXIFTAG_DATETIMEDIGITIZED, strTime);
+
if (metadata.contains(controls::AnalogueGain)) {
float gain = metadata.get(controls::AnalogueGain);
uint16_t iso = std::min(std::max(gain * 100, 0.0f), 65535.0f);
If the EXIF directory is empty due to no metadata being available tools such as tiffinfo complains that the directory is malformed. TIFFFetchDirectory: Sanity check on directory count failed, this is probably not a valid IFD offset. TIFFReadCustomDirectory: Failed to read custom directory at offset 0. Always record the creation time in the EXIF directory instead of adding complexity to skip creating the EXIF directory if there is no metadata to record. This ensures there are at least some entries in the EXIF directory and that makes tiffinfo happy. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> --- * Changes since v1 - Also set EXIFTAG_DATETIMEORIGINAL --- src/qcam/dng_writer.cpp | 12 ++++++++++++ 1 file changed, 12 insertions(+)