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