Fix a crash when trying to load/save files and CEF is active.

[nageru] / resampling_queue.cpp

diff --git a/resampling_queue.cpp b/resampling_queue.cpp
index 24811ebe5bbab43fa7cd68471c4ca69f82e673e8..06dc6fbf417bb1a13aae39f4cbf527e7740e5b6f 100644 (file)
--- a/resampling_queue.cpp
+++ b/resampling_queue.cpp
@@ -49,6 +49,8 @@ void ResamplingQueue::add_input_samples(steady_clock::time_point ts, const float
                return;
        }
 
+       assert(duration<double>(ts.time_since_epoch()).count() >= 0.0);
+
        bool good_sample = (rate_adjustment_policy == ADJUST_RATE);
        if (good_sample && a1.good_sample) {
                a0 = a1;
@@ -88,6 +90,12 @@ bool ResamplingQueue::get_output_samples(steady_clock::time_point ts, float *sam
                // good point. Note that we could be extrapolating backward or
                // forward, depending on the timing of the calls.
                const InputPoint &base_point = a1.good_sample ? a1 : a0;
+               assert(duration<double>(base_point.ts.time_since_epoch()).count() >= 0.0);
+
+               // NOTE: Due to extrapolation, input_samples_received can
+               // actually go negative here the few first calls (ie., we asked
+               // about a timestamp where we hadn't actually started producing
+               // samples yet), but that is harmless.
                const double input_samples_received = base_point.input_samples_received +
                        current_estimated_freq_in * duration<double>(ts - base_point.ts).count();