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Diffstat (limited to 'chromium/media/audio/mac/aggregate_device_manager.cc')
| -rw-r--r-- | chromium/media/audio/mac/aggregate_device_manager.cc | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/chromium/media/audio/mac/aggregate_device_manager.cc b/chromium/media/audio/mac/aggregate_device_manager.cc deleted file mode 100644 index c7f323322e7..00000000000 --- a/chromium/media/audio/mac/aggregate_device_manager.cc +++ /dev/null @@ -1,371 +0,0 @@ -// Copyright 2013 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "media/audio/mac/aggregate_device_manager.h" - -#include <CoreAudio/AudioHardware.h> -#include <string> - -#include "base/mac/mac_logging.h" -#include "base/mac/scoped_cftyperef.h" -#include "media/audio/audio_parameters.h" -#include "media/audio/mac/audio_manager_mac.h" - -using base::ScopedCFTypeRef; - -namespace media { - -AggregateDeviceManager::AggregateDeviceManager() - : plugin_id_(kAudioObjectUnknown), - input_device_(kAudioDeviceUnknown), - output_device_(kAudioDeviceUnknown), - aggregate_device_(kAudioObjectUnknown) { -} - -AggregateDeviceManager::~AggregateDeviceManager() { - DestroyAggregateDevice(); -} - -AudioDeviceID AggregateDeviceManager::GetDefaultAggregateDevice() { - AudioDeviceID current_input_device; - AudioDeviceID current_output_device; - AudioManagerMac::GetDefaultInputDevice(¤t_input_device); - AudioManagerMac::GetDefaultOutputDevice(¤t_output_device); - - if (AudioManagerMac::HardwareSampleRateForDevice(current_input_device) != - AudioManagerMac::HardwareSampleRateForDevice(current_output_device)) { - // TODO(crogers): with some extra work we can make aggregate devices work - // if the clock domain is the same but the sample-rate differ. - // For now we fallback to the synchronized path. - return kAudioDeviceUnknown; - } - - // Use a lazily created aggregate device if it's already available - // and still appropriate. - if (aggregate_device_ != kAudioObjectUnknown) { - // TODO(crogers): handle default device changes for synchronized I/O. - // For now, we check to make sure the default devices haven't changed - // since we lazily created the aggregate device. - if (current_input_device == input_device_ && - current_output_device == output_device_) - return aggregate_device_; - - // For now, once lazily created don't attempt to create another - // aggregate device. - return kAudioDeviceUnknown; - } - - input_device_ = current_input_device; - output_device_ = current_output_device; - - // Only create an aggregrate device if the clock domains match. - UInt32 input_clockdomain = GetClockDomain(input_device_); - UInt32 output_clockdomain = GetClockDomain(output_device_); - DVLOG(1) << "input_clockdomain: " << input_clockdomain; - DVLOG(1) << "output_clockdomain: " << output_clockdomain; - - if (input_clockdomain == 0 || input_clockdomain != output_clockdomain) - return kAudioDeviceUnknown; - - OSStatus result = CreateAggregateDevice( - input_device_, - output_device_, - &aggregate_device_); - if (result != noErr) - DestroyAggregateDevice(); - - return aggregate_device_; -} - -CFStringRef AggregateDeviceManager::GetDeviceUID(AudioDeviceID id) { - static const AudioObjectPropertyAddress kDeviceUIDAddress = { - kAudioDevicePropertyDeviceUID, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - // As stated in the CoreAudio header (AudioHardwareBase.h), - // the caller is responsible for releasing the device_UID. - CFStringRef device_UID; - UInt32 size = sizeof(device_UID); - OSStatus result = AudioObjectGetPropertyData( - id, - &kDeviceUIDAddress, - 0, - 0, - &size, - &device_UID); - - return (result == noErr) ? device_UID : NULL; -} - -void AggregateDeviceManager::GetDeviceName( - AudioDeviceID id, char* name, UInt32 size) { - static const AudioObjectPropertyAddress kDeviceNameAddress = { - kAudioDevicePropertyDeviceName, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - OSStatus result = AudioObjectGetPropertyData( - id, - &kDeviceNameAddress, - 0, - 0, - &size, - name); - - if (result != noErr && size > 0) - name[0] = 0; -} - -UInt32 AggregateDeviceManager::GetClockDomain(AudioDeviceID device_id) { - static const AudioObjectPropertyAddress kClockDomainAddress = { - kAudioDevicePropertyClockDomain, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - UInt32 clockdomain = 0; - UInt32 size = sizeof(UInt32); - OSStatus result = AudioObjectGetPropertyData( - device_id, - &kClockDomainAddress, - 0, - 0, - &size, - &clockdomain); - - return (result == noErr) ? clockdomain : 0; -} - -OSStatus AggregateDeviceManager::GetPluginID(AudioObjectID* id) { - DCHECK(id); - - // Get the audio hardware plugin. - CFStringRef bundle_name = CFSTR("com.apple.audio.CoreAudio"); - - AudioValueTranslation plugin_translation; - plugin_translation.mInputData = &bundle_name; - plugin_translation.mInputDataSize = sizeof(bundle_name); - plugin_translation.mOutputData = id; - plugin_translation.mOutputDataSize = sizeof(*id); - - static const AudioObjectPropertyAddress kPlugInAddress = { - kAudioHardwarePropertyPlugInForBundleID, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - UInt32 size = sizeof(plugin_translation); - OSStatus result = AudioObjectGetPropertyData( - kAudioObjectSystemObject, - &kPlugInAddress, - 0, - 0, - &size, - &plugin_translation); - - DVLOG(1) << "CoreAudio plugin ID: " << *id; - - return result; -} - -CFMutableDictionaryRef -AggregateDeviceManager::CreateAggregateDeviceDictionary( - AudioDeviceID input_id, - AudioDeviceID output_id) { - CFMutableDictionaryRef aggregate_device_dict = CFDictionaryCreateMutable( - NULL, - 0, - &kCFTypeDictionaryKeyCallBacks, - &kCFTypeDictionaryValueCallBacks); - if (!aggregate_device_dict) - return NULL; - - const CFStringRef kAggregateDeviceName = - CFSTR("ChromeAggregateAudioDevice"); - const CFStringRef kAggregateDeviceUID = - CFSTR("com.google.chrome.AggregateAudioDevice"); - - // Add name and UID of the device to the dictionary. - CFDictionaryAddValue( - aggregate_device_dict, - CFSTR(kAudioAggregateDeviceNameKey), - kAggregateDeviceName); - CFDictionaryAddValue( - aggregate_device_dict, - CFSTR(kAudioAggregateDeviceUIDKey), - kAggregateDeviceUID); - - // Add a "private aggregate key" to the dictionary. - // The 1 value means that the created aggregate device will - // only be accessible from the process that created it, and - // won't be visible to outside processes. - int value = 1; - ScopedCFTypeRef<CFNumberRef> aggregate_device_number(CFNumberCreate( - NULL, - kCFNumberIntType, - &value)); - CFDictionaryAddValue( - aggregate_device_dict, - CFSTR(kAudioAggregateDeviceIsPrivateKey), - aggregate_device_number); - - return aggregate_device_dict; -} - -CFMutableArrayRef -AggregateDeviceManager::CreateSubDeviceArray( - CFStringRef input_device_UID, CFStringRef output_device_UID) { - CFMutableArrayRef sub_devices_array = CFArrayCreateMutable( - NULL, - 0, - &kCFTypeArrayCallBacks); - - CFArrayAppendValue(sub_devices_array, input_device_UID); - CFArrayAppendValue(sub_devices_array, output_device_UID); - - return sub_devices_array; -} - -OSStatus AggregateDeviceManager::CreateAggregateDevice( - AudioDeviceID input_id, - AudioDeviceID output_id, - AudioDeviceID* aggregate_device) { - DCHECK(aggregate_device); - - const size_t kMaxDeviceNameLength = 256; - - scoped_ptr<char[]> input_device_name(new char[kMaxDeviceNameLength]); - GetDeviceName( - input_id, - input_device_name.get(), - sizeof(input_device_name)); - DVLOG(1) << "Input device: \n" << input_device_name; - - scoped_ptr<char[]> output_device_name(new char[kMaxDeviceNameLength]); - GetDeviceName( - output_id, - output_device_name.get(), - sizeof(output_device_name)); - DVLOG(1) << "Output device: \n" << output_device_name; - - OSStatus result = GetPluginID(&plugin_id_); - if (result != noErr) - return result; - - // Create a dictionary for the aggregate device. - ScopedCFTypeRef<CFMutableDictionaryRef> aggregate_device_dict( - CreateAggregateDeviceDictionary(input_id, output_id)); - if (!aggregate_device_dict) - return -1; - - // Create the aggregate device. - static const AudioObjectPropertyAddress kCreateAggregateDeviceAddress = { - kAudioPlugInCreateAggregateDevice, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - UInt32 size = sizeof(*aggregate_device); - result = AudioObjectGetPropertyData( - plugin_id_, - &kCreateAggregateDeviceAddress, - sizeof(aggregate_device_dict), - &aggregate_device_dict, - &size, - aggregate_device); - if (result != noErr) { - DLOG(ERROR) << "Error creating aggregate audio device!"; - return result; - } - - // Set the sub-devices for the aggregate device. - // In this case we use two: the input and output devices. - - ScopedCFTypeRef<CFStringRef> input_device_UID(GetDeviceUID(input_id)); - ScopedCFTypeRef<CFStringRef> output_device_UID(GetDeviceUID(output_id)); - if (!input_device_UID || !output_device_UID) { - DLOG(ERROR) << "Error getting audio device UID strings."; - return -1; - } - - ScopedCFTypeRef<CFMutableArrayRef> sub_devices_array( - CreateSubDeviceArray(input_device_UID, output_device_UID)); - if (sub_devices_array == NULL) { - DLOG(ERROR) << "Error creating sub-devices array."; - return -1; - } - - static const AudioObjectPropertyAddress kSetSubDevicesAddress = { - kAudioAggregateDevicePropertyFullSubDeviceList, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - size = sizeof(CFMutableArrayRef); - result = AudioObjectSetPropertyData( - *aggregate_device, - &kSetSubDevicesAddress, - 0, - NULL, - size, - &sub_devices_array); - if (result != noErr) { - DLOG(ERROR) << "Error setting aggregate audio device sub-devices!"; - return result; - } - - // Use the input device as the master device. - static const AudioObjectPropertyAddress kSetMasterDeviceAddress = { - kAudioAggregateDevicePropertyMasterSubDevice, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - size = sizeof(CFStringRef); - result = AudioObjectSetPropertyData( - *aggregate_device, - &kSetMasterDeviceAddress, - 0, - NULL, - size, - &input_device_UID); - if (result != noErr) { - DLOG(ERROR) << "Error setting aggregate audio device master device!"; - return result; - } - - DVLOG(1) << "New aggregate device: " << *aggregate_device; - return noErr; -} - -void AggregateDeviceManager::DestroyAggregateDevice() { - if (aggregate_device_ == kAudioObjectUnknown) - return; - - static const AudioObjectPropertyAddress kDestroyAddress = { - kAudioPlugInDestroyAggregateDevice, - kAudioObjectPropertyScopeGlobal, - kAudioObjectPropertyElementMaster - }; - - UInt32 size = sizeof(aggregate_device_); - OSStatus result = AudioObjectGetPropertyData( - plugin_id_, - &kDestroyAddress, - 0, - NULL, - &size, - &aggregate_device_); - if (result != noErr) { - DLOG(ERROR) << "Error destroying aggregate audio device!"; - return; - } - - aggregate_device_ = kAudioObjectUnknown; -} - -} // namespace media |