ardour/livetrax
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Peakdata: start striding at consistent offsets

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This commit is contained in:
Robin Gareus 2024-09-25 04:36:13 +02:00
parent 5d65d7f051
commit b28090c64c
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 3 additions and 3 deletions
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6
libs/ardour/audiosource.cc
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@ -583,9 +583,9 @@ AudioSource::read_peaks_with_fpp (PeakData *peaks, samplecnt_t npeaks, samplepos
/* compute the rounded up sample position */
samplepos_t current_stored_peak = (samplepos_t) ceil (start / (double) samples_per_file_peak);
samplepos_t next_visual_peak = (samplepos_t) ceil (start / samples_per_visual_peak);
double next_visual_peak_sample = next_visual_peak * samples_per_visual_peak;
samplepos_t current_stored_peak = (samplepos_t) ceil (next_visual_peak_sample / (double) samples_per_file_peak);
samplepos_t stored_peak_before_next_visual_peak = (samplepos_t) next_visual_peak_sample / samples_per_file_peak;
samplecnt_t nvisual_peaks = 0;
@ -593,11 +593,11 @@ AudioSource::read_peaks_with_fpp (PeakData *peaks, samplecnt_t npeaks, samplepos
/* handle the case where the initial visual peak is on a pixel boundary */
current_stored_peak = min (current_stored_peak, stored_peak_before_next_visual_peak);
//current_stored_peak = min (current_stored_peak, stored_peak_before_next_visual_peak);
/* open ... close during out: handling */
off_t map_off = (uint32_t) (ceil (start / (double) samples_per_file_peak)) * sizeof(PeakData);
off_t map_off = (uint32_t) (current_stored_peak) * sizeof(PeakData);
off_t read_map_off = map_off & ~(bufsize - 1);
off_t map_delta = map_off - read_map_off;
size_t raw_map_length = chunksize * sizeof(PeakData);