test: add unit tests to fragment.go

Eyevinn · Nov 6, 2024 · 4fe0f59 · 4fe0f59
1 parent 1e25a36
commit 4fe0f59
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/mp4/fragment.go b/mp4/fragment.go
@@ -366,8 +366,11 @@ func (f *Fragment) GetSampleNrFromTime(trex *TrexBox, sampleTime uint64) (uint32
 	if baseDecodeTime > sampleTime {
 		return 0, fmt.Errorf("sampleTime %d less that baseMediaDecodeTime %d", sampleTime, baseDecodeTime)
 	}
+	defaultSampleDuration := uint32(0)
 	deltaTime := sampleTime - baseDecodeTime
-	defaultSampleDuration := trex.DefaultSampleDuration
+	if trex != nil {
+		defaultSampleDuration = trex.DefaultSampleDuration
+	}
 	if traf.Tfhd.HasDefaultSampleDuration() {
 		defaultSampleDuration = traf.Tfhd.DefaultSampleDuration
 	}