const double pixels_offset = pp.pixels_offset();
const double samplerate = data_->samplerate();
- const double start_time = data_->get_start_time();
+ 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();
const double start = samplerate * (pp.offset() - start_time);