X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=benchmark_audio_mixer.cpp;h=3327179c3518e6dc492b794c636d7d24bafde7a7;hb=e284d1c7a2e18ee7e4aea082c4a57a3504a0f5e8;hp=8fe4710cbc8e834b4f84f6ca44a67309db7c28a1;hpb=2da661c06c945b2fb3521bbabcc7e81d63dabdd7;p=nageru

diff --git a/benchmark_audio_mixer.cpp b/benchmark_audio_mixer.cpp
index 8fe4710..3327179 100644
--- a/benchmark_audio_mixer.cpp
+++ b/benchmark_audio_mixer.cpp
@@ -2,12 +2,21 @@
 // with the default settings, feeds some white noise to the inputs and
 // runs a while. Useful for e.g. profiling.
 
-#include <stdio.h>
+#include <assert.h>
+#include <bmusb/bmusb.h>
 #include <stdint.h>
-#include <vector>
+#include <stdio.h>
+#include <algorithm>
 #include <chrono>
+#include <cmath>
+#include <ratio>
+#include <vector>
+
 #include "audio_mixer.h"
 #include "db.h"
+#include "defs.h"
+#include "input_mapping.h"
+#include "resampling_queue.h"
 #include "timebase.h"
 
 #define NUM_BENCHMARK_CARDS 4
@@ -52,6 +61,10 @@ void callback(float level_lufs, float peak_db,
 
 vector<float> process_frame(unsigned frame_num, AudioMixer *mixer)
 {
+	duration<int64_t, ratio<NUM_SAMPLES, OUTPUT_FREQUENCY>> frame_duration(frame_num);
+	steady_clock::time_point ts = steady_clock::time_point::min() +
+		duration_cast<steady_clock::duration>(frame_duration);
+
 	// Feed the inputs.
 	for (unsigned card_index = 0; card_index < NUM_BENCHMARK_CARDS; ++card_index) {
 		bmusb::AudioFormat audio_format;
@@ -61,12 +74,11 @@ vector<float> process_frame(unsigned frame_num, AudioMixer *mixer)
 		unsigned num_samples = NUM_SAMPLES + (lcgrand() % 9) - 5;
 		bool ok = mixer->add_audio(DeviceSpec{InputSourceType::CAPTURE_CARD, card_index},
 			card_index == 3 ? samples24 : samples16, num_samples, audio_format,
-			NUM_SAMPLES * TIMEBASE / OUTPUT_FREQUENCY);
+			NUM_SAMPLES * TIMEBASE / OUTPUT_FREQUENCY, ts);
 		assert(ok);
 	}
 
-	double pts = double(frame_num) * NUM_SAMPLES / OUTPUT_FREQUENCY;
-	return mixer->get_output(pts, NUM_SAMPLES, ResamplingQueue::ADJUST_RATE);
+	return mixer->get_output(ts, NUM_SAMPLES, ResamplingQueue::ADJUST_RATE);
 }
 
 void init_mapping(AudioMixer *mixer)