(forward ported from 2.0-ongoing) fix for peak data reading (carl h, #2388)

git-svn-id: svn://localhost/ardour2/branches/3.0@5921 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/libs/ardour/audiosource.cc b/libs/ardour/audiosource.cc
index 883bc0b41b25e880479f7c4c4ebda444531ed20f..fb969fc8b90fc90a8a627a0d939c0359f930e118 100644 (file)
--- a/libs/ardour/audiosource.cc
+++ b/libs/ardour/audiosource.cc
@@ -394,7 +394,7 @@ AudioSource::read_peaks_with_fpp (PeakData *peaks, nframes_t npeaks, sframes_t s
                }
 
                if (zero_fill) {
-                       memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
+                       memset (peaks + npeaks - zero_fill, 0, sizeof (PeakData) * zero_fill);
                }
 
                return 0;
@@ -505,7 +505,7 @@ AudioSource::read_peaks_with_fpp (PeakData *peaks, nframes_t npeaks, sframes_t s
                }
 
                if (zero_fill) {
-                       memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
+                       memset (peaks + npeaks - zero_fill, 0, sizeof (PeakData) * zero_fill);
                }
 
                ret = 0;
@@ -583,7 +583,7 @@ AudioSource::read_peaks_with_fpp (PeakData *peaks, nframes_t npeaks, sframes_t s
                }
 
                if (zero_fill) {
-                       memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
+                       memset (peaks + npeaks - zero_fill, 0, sizeof (PeakData) * zero_fill);
                }
 
                ret = 0;