From a38e29c59d5c7c1e2a38e57d8dadddd369ca0a3d Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Mon, 24 Aug 2026 01:44:37 +0300
Subject: [PATCH] audio: Passing number to audio now generates a sinwave at
 that freq

---
 userspace/programs/audio/main.cpp | 38 ++++++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 8 deletions(-)

diff --git a/userspace/programs/audio/main.cpp b/userspace/programs/audio/main.cpp
index f8bf29ec..c89649ef 100644
--- a/userspace/programs/audio/main.cpp
+++ b/userspace/programs/audio/main.cpp
@@ -1,4 +1,5 @@
 #include <LibAudio/Audio.h>
+#include <LibAudio/AudioStreams/SineWaveAudioStream.h>
 
 #include <stdio.h>
 #include <unistd.h>
@@ -7,18 +8,39 @@ int main(int argc, char** argv)
 {
 	if (argc != 2)
 	{
-		fprintf(stderr, "usage: %s FILE\n", argv[0]);
+		fprintf(stderr, "usage: %s FREQ|FILE\n", argv[0]);
 		return 1;
 	}
 
-	auto audio_or_error = LibAudio::Audio::load(argv[1]);
-	if (audio_or_error.is_error())
-	{
-		fprintf(stderr, "failed to load %s: %s\n", argv[1], audio_or_error.error().get_message());
-		return 1;
-	}
+	auto audio = [argv]() -> LibAudio::Audio {
+		char* endp;
+		float freq = strtof(argv[1], &endp);
 
-	auto audio = audio_or_error.release_value();
+		if (*endp != '\0')
+		{
+			auto audio_or_error = LibAudio::Audio::load(argv[1]);
+			if (!audio_or_error.is_error())
+				return audio_or_error.release_value();
+			fprintf(stderr, "failed to load %s: %s\n", argv[1], audio_or_error.error().get_message());
+			exit(1);
+		}
+
+		auto sine_stream = LibAudio::SineWaveAudioStream::create(2, 48000, freq);
+		if (sine_stream.is_error())
+		{
+			fprintf(stderr, "failed to create sine wave stream: %s\n", sine_stream.error().get_message());
+			exit(1);
+		}
+
+		auto audio_or_error = LibAudio::Audio::create(sine_stream.release_value());
+		if (audio_or_error.is_error())
+		{
+			fprintf(stderr, "failed to create sine wave stream: %s\n", audio_or_error.error().get_message());
+			exit(1);
+		}
+
+		return audio_or_error.release_value();
+	}();
 
 	if (auto ret = audio.start(); ret.is_error())
 	{