Fix non-frame-aligned trims when using trim-to-playhead.

[dcpomatic.git] / src / lib / dcpomatic_time.h

diff --git a/src/lib/dcpomatic_time.h b/src/lib/dcpomatic_time.h
index 893bce2572e21752a1de59f6dcdb43f9eb8a0ca4..16d93ca28bc83abc01c8273c6ece6cd092b42359 100644 (file)
--- a/src/lib/dcpomatic_time.h
+++ b/src/lib/dcpomatic_time.h
@@ -118,10 +118,12 @@ public:
         *  at some sampling rate.
         *  @param r Sampling rate.
         */
-       Time<S, O> round_up (float r) const {
-               Type const n = llrintf (HZ / r);
-               Type const a = _t + n - 1;
-               return Time<S, O> (a - (a % n));
+       Time<S, O> ceil (float r) const {
+               return Time<S, O> (llrint (HZ * frames_ceil(r) / double(r)));
+       }
+
+       Time<S, O> floor (float r) const {
+               return Time<S, O> (llrint (HZ * frames_floor(r) / double(r)));
        }
 
        double seconds () const {
@@ -143,7 +145,7 @@ public:
 
        template <typename T>
        int64_t frames_floor (T r) const {
-               return floor (_t * r / HZ);
+               return ::floor (_t * r / HZ);
        }
 
        template <typename T>
@@ -152,7 +154,7 @@ public:
                   the calculation will round down before we get the chance
                   to ceil().
                */
-               return ceil (_t * double(r) / HZ);
+               return ::ceil (_t * double(r) / HZ);
        }
 
        /** @param r Frames per second */
@@ -211,7 +213,8 @@ public:
        }
 
 private:
-       friend struct dcptime_round_up_test;
+       friend struct dcptime_ceil_test;
+       friend struct dcptime_floor_test;
 
        Type _t;
        static const int HZ = 96000;