+void Mixer::process_audio_one_frame()
+{
+ // TODO: Allow using audio from the other card(s) as well.
+ vector<float> samples_out;
+ for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ samples_out.resize((48000 / 60) * 2);
+ {
+ unique_lock<mutex> lock(cards[card_index].audio_mutex);
+ if (!cards[card_index].resampler->get_output_samples(pts(), &samples_out[0], 48000 / 60)) {
+ printf("Card %d reported previous underrun.\n", card_index);
+ }
+ }
+ if (card_index == 0) {
+ vector<float> left, right;
+ peak = std::max(peak, find_peak(samples_out));
+ deinterleave_samples(samples_out, &left, &right);
+ float *ptrs[] = { left.data(), right.data() };
+ r128.process(left.size(), ptrs);
+ h264_encoder->add_audio(pts_int, move(samples_out));
+ }
+ }
+}
+