New upstream version 18.0.1+dfsg1

libobs/audio-monitoring/osx/coreaudio-enum-devices.c

@@ -0,0 +1,96 @@
+#include <CoreFoundation/CFString.h>
+#include <CoreAudio/CoreAudio.h>
+
+#include "../../obs-internal.h"
+#include "../../util/dstr.h"
+
+#include "mac-helpers.h"
+
+static inline bool cf_to_cstr(CFStringRef ref, char *buf, size_t size)
+{
+	if (!ref) return false;
+	return (bool)CFStringGetCString(ref, buf, size, kCFStringEncodingUTF8);
+}
+
+static void obs_enum_audio_monitoring_device(obs_enum_audio_device_cb cb,
+		void *data, AudioDeviceID id)
+{
+	UInt32      size    = 0;
+	CFStringRef cf_name = NULL;
+	CFStringRef cf_uid  = NULL;
+	char        name[1024];
+	char        uid[1024];
+	OSStatus    stat;
+
+	AudioObjectPropertyAddress addr = {
+		kAudioDevicePropertyStreams,
+		kAudioDevicePropertyScopeInput,
+		kAudioObjectPropertyElementMaster
+	};
+
+	/* check to see if it's a mac input device */
+	AudioObjectGetPropertyDataSize(id, &addr, 0, NULL, &size);
+	if (!size)
+		return;
+
+	size = sizeof(CFStringRef);
+
+	addr.mSelector = kAudioDevicePropertyDeviceUID;
+	stat = AudioObjectGetPropertyData(id, &addr, 0, NULL, &size, &cf_uid);
+	if (!success(stat, "get audio device UID"))
+		return;
+
+	addr.mSelector = kAudioDevicePropertyDeviceNameCFString;
+	stat = AudioObjectGetPropertyData(id, &addr, 0, NULL, &size, &cf_name);
+	if (!success(stat, "get audio device name"))
+		goto fail;
+
+	if (!cf_to_cstr(cf_name, name, sizeof(name))) {
+		blog(LOG_WARNING, "%s: failed to convert name", __FUNCTION__);
+		goto fail;
+	}
+
+	if (!cf_to_cstr(cf_uid, uid, sizeof(uid))) {
+		blog(LOG_WARNING, "%s: failed to convert uid", __FUNCTION__);
+		goto fail;
+	}
+
+	cb(data, name, uid);
+
+fail:
+	if (cf_name)
+		CFRelease(cf_name);
+	if (cf_uid)
+		CFRelease(cf_uid);
+}
+
+void obs_enum_audio_monitoring_devices(obs_enum_audio_device_cb cb, void *data)
+{
+	AudioObjectPropertyAddress addr = {
+		kAudioHardwarePropertyDevices,
+		kAudioObjectPropertyScopeGlobal,
+		kAudioObjectPropertyElementMaster
+	};
+
+	UInt32        size = 0;
+	UInt32        count;
+	OSStatus      stat;
+	AudioDeviceID *ids;
+
+	stat = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &addr,
+						0, NULL, &size);
+	if (!success(stat, "get data size"))
+		return;
+
+	ids   = malloc(size);
+	count = size / sizeof(AudioDeviceID);
+
+	stat = AudioObjectGetPropertyData(kAudioObjectSystemObject, &addr,
+						0, NULL, &size, ids);
+	if (success(stat, "get data")) {
+		for (UInt32 i = 0; i < count; i++)
+			obs_enum_audio_monitoring_device(cb, data, ids[i]);
+	}
+
+	free(ids);
+}