snapshots.front();
const double pixels_offset = pp.pixels_offset();
- const double samplerate = data_->samplerate();
+ const double samplerate = snapshot->samplerate();
const double start_time = snapshot->start_time();
const int64_t last_sample = snapshot->get_sample_count() - 1;
const double samples_per_pixel = samplerate * pp.scale();