userspace: Add audio utility to play audio files

userspace/programs/audio/CMakeLists.txt

@@ -0,0 +1,9 @@
+set(SOURCES
+	main.cpp
+)
+
+add_executable(audio ${SOURCES})
+banan_link_library(audio libc)
+banan_link_library(audio libaudio)
+
+install(TARGETS audio OPTIONAL)

userspace/programs/audio/main.cpp

@@ -0,0 +1,36 @@
+#include <LibAudio/Audio.h>
+
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+	if (argc != 2)
+	{
+		fprintf(stderr, "usage: %s 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 = audio_or_error.release_value();
+
+	if (auto ret = audio.start(); ret.is_error())
+	{
+		fprintf(stderr, "failed start playing audio: %s\n", ret.error().get_message());
+		return 1;
+	}
+
+	while (audio.is_playing())
+	{
+		usleep(10'000);
+		audio.update();
+	}
+
+	return 0;
+}