| /* |
| * Copyright (C) 2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "CoreAudioCaptureDevice.h" |
| |
| #if ENABLE(MEDIA_STREAM) && PLATFORM(MAC) |
| |
| #include "CaptureDeviceManager.h" |
| #include "Logging.h" |
| #include <AudioUnit/AudioUnit.h> |
| #include <CoreMedia/CMSync.h> |
| |
| #import <pal/cf/CoreMediaSoftLink.h> |
| |
| namespace WebCore { |
| using namespace PAL; |
| |
| static bool getDeviceInfo(uint32_t deviceID, String& persistentID, String& label) |
| { |
| CFStringRef uniqueID; |
| AudioObjectPropertyAddress address { kAudioDevicePropertyDeviceUID, kAudioDevicePropertyScopeInput, kAudioObjectPropertyElementMaster }; |
| UInt32 dataSize = sizeof(uniqueID); |
| auto err = AudioObjectGetPropertyData(static_cast<UInt32>(deviceID), &address, 0, nullptr, &dataSize, &uniqueID); |
| if (err) { |
| LOG(Media, "CoreAudioCaptureDevice::getDeviceInfo failed to get device unique id with error %d (%.4s)", (int)err, (char*)&err); |
| return false; |
| } |
| persistentID = uniqueID; |
| CFRelease(uniqueID); |
| |
| CFStringRef localizedName; |
| address = { kAudioObjectPropertyName, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster }; |
| dataSize = sizeof(localizedName); |
| err = AudioObjectGetPropertyData(static_cast<UInt32>(deviceID), &address, 0, nullptr, &dataSize, &localizedName); |
| if (err) { |
| LOG(Media, "CoreAudioCaptureDevice::getDeviceInfo failed to get device name with error %d (%.4s)", (int)err, (char*)&err); |
| return false; |
| } |
| label = localizedName; |
| CFRelease(localizedName); |
| |
| return true; |
| } |
| |
| Optional<CoreAudioCaptureDevice> CoreAudioCaptureDevice::create(uint32_t deviceID) |
| { |
| String persistentID; |
| String label; |
| if (!getDeviceInfo(deviceID, persistentID, label)) |
| return WTF::nullopt; |
| |
| return CoreAudioCaptureDevice(deviceID, persistentID, label); |
| } |
| |
| CoreAudioCaptureDevice::CoreAudioCaptureDevice(uint32_t deviceID, const String& persistentID, const String& label) |
| : CaptureDevice(persistentID, CaptureDevice::DeviceType::Microphone, label) |
| , m_deviceID(deviceID) |
| { |
| } |
| |
| RetainPtr<CMClockRef> CoreAudioCaptureDevice::deviceClock() |
| { |
| if (m_deviceClock) |
| return m_deviceClock; |
| |
| CMClockRef clock; |
| auto err = CMAudioDeviceClockCreate(kCFAllocatorDefault, persistentId().createCFString().get(), &clock); |
| if (err) { |
| LOG(Media, "CoreAudioCaptureDevice::CMAudioDeviceClockCreate(%p) CMAudioDeviceClockCreate failed with error %d (%.4s)", this, (int)err, (char*)&err); |
| return nullptr; |
| } |
| |
| m_deviceClock = adoptCF(clock); |
| |
| return m_deviceClock; |
| } |
| |
| bool CoreAudioCaptureDevice::isAlive() |
| { |
| AudioObjectPropertyAddress address = { kAudioDevicePropertyDeviceIsAlive, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster }; |
| UInt32 state = 0; |
| UInt32 dataSize = sizeof(state); |
| if (AudioObjectGetPropertyData(static_cast<UInt32>(m_deviceID), &address, 0, nullptr, &dataSize, &state)) |
| return false; |
| return state; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(MEDIA_STREAM) && PLATFORM(MAC) |