- dcp::Data key (dcpomatic::crypto_key_length());
- memset (key.data().get(), 0, key.size());
- string const magic = command_and_read ("dcpomatic2_uuid");
- strncpy ((char *) key.data().get(), magic.c_str(), dcpomatic::crypto_key_length());
- return key;
-}
-
-/* swaroop chain file format:
- *
- * 0 [int16_t] IV length
- * 2 [int16_t] cert #1 length, or 0 for none
- * 4 [int16_t] cert #2 length, or 0 for none
- * 6 [int16_t] cert #3 length, or 0 for none
- * 8 [int16_t] cert #4 length, or 0 for none
- * 10 [int16_t] cert #5 length, or 0 for none
- * 12 [int16_t] cert #6 length, or 0 for none
- * 14 [int16_t] cert #7 length, or 0 for none
- * 16 [int16_t] cert #8 length, or 0 for none
- * 16 [int16_t] private key length
- * 20 IV
- * cert #1
- * cert #2
- * cert #3
- * cert #4
- * cert #5
- * cert #6
- * cert #7
- * cert #8
- * private key
- */
+ /* Now scale it down if the display container is smaller than the film container */
+ if (display_container != film_container) {
+ float const scale = min (
+ float (display_container.width) / film_container.width,
+ float (display_container.height) / film_container.height
+ );
+
+ s.width = lrintf (s.width * scale);
+ s.height = lrintf (s.height * scale);
+ s = quanta.round (s);
+ }