/* * Copyright 2020 Max Kellermann * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``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 THE * FOUNDATION 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. */ #ifndef APPLE_AUDIO_OBJECT_HXX #define APPLE_AUDIO_OBJECT_HXX #include "Throw.hxx" #include "util/AllocatedArray.hxx" #include #include namespace Apple { class StringRef; } inline std::size_t AudioObjectGetPropertyDataSize(AudioObjectID inObjectID, const AudioObjectPropertyAddress &inAddress) { UInt32 size; OSStatus status = AudioObjectGetPropertyDataSize(inObjectID, &inAddress, 0, nullptr, &size); if (status != noErr) Apple::ThrowOSStatus(status); return size; } template T AudioObjectGetPropertyDataT(AudioObjectID inObjectID, const AudioObjectPropertyAddress &inAddress) { OSStatus status; UInt32 size = sizeof(T); T value; status = AudioObjectGetPropertyData(inObjectID, &inAddress, 0, nullptr, &size, &value); if (status != noErr) Apple::ThrowOSStatus(status); return value; } Apple::StringRef AudioObjectGetStringProperty(AudioObjectID inObjectID, const AudioObjectPropertyAddress &inAddress); template AllocatedArray AudioObjectGetPropertyDataArray(AudioObjectID inObjectID, const AudioObjectPropertyAddress &inAddress) { OSStatus status; UInt32 size; status = AudioObjectGetPropertyDataSize(inObjectID, &inAddress, 0, nullptr, &size); if (status != noErr) Apple::ThrowOSStatus(status); AllocatedArray result(size / sizeof(T)); status = AudioObjectGetPropertyData(inObjectID, &inAddress, 0, nullptr, &size, result.begin()); if (status != noErr) Apple::ThrowOSStatus(status); return result; } #endif