| /* |
| * Copyright (C) 2018 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. AND ITS 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 APPLE INC. OR ITS 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. |
| */ |
| |
| #import "config.h" |
| #import "HEVCUtilitiesCocoa.h" |
| |
| #if PLATFORM(COCOA) |
| |
| #import "FourCC.h" |
| #import "HEVCUtilities.h" |
| #import "MediaCapabilitiesInfo.h" |
| |
| #import "VideoToolboxSoftLink.h" |
| #import <pal/cocoa/AVFoundationSoftLink.h> |
| |
| namespace WebCore { |
| |
| bool validateHEVCParameters(HEVCParameterSet& parameters, MediaCapabilitiesInfo& info, bool hasAlphaChannel) |
| { |
| CMVideoCodecType codec = kCMVideoCodecType_HEVC; |
| if (hasAlphaChannel) { |
| if (!PAL::isAVFoundationFrameworkAvailable() || !PAL::canLoad_AVFoundation_AVVideoCodecTypeHEVCWithAlpha()) |
| return false; |
| |
| auto codecCode = FourCC::fromString(AVVideoCodecTypeHEVCWithAlpha); |
| if (!codecCode) |
| return false; |
| |
| codec = codecCode.value().value; |
| } |
| OSStatus status = VTSelectAndCreateVideoDecoderInstance(codec, kCFAllocatorDefault, nullptr, nullptr); |
| if (status != noErr) |
| return false; |
| |
| if (!canLoad_VideoToolbox_VTCopyHEVCDecoderCapabilitiesDictionary() |
| || !canLoad_VideoToolbox_kVTHEVCDecoderCapability_SupportedProfiles() |
| || !canLoad_VideoToolbox_kVTHEVCDecoderCapability_PerProfileSupport() |
| || !canLoad_VideoToolbox_kVTHEVCDecoderProfileCapability_IsHardwareAccelerated() |
| || !canLoad_VideoToolbox_kVTHEVCDecoderProfileCapability_MaxDecodeLevel() |
| || !canLoad_VideoToolbox_kVTHEVCDecoderProfileCapability_MaxPlaybackLevel()) |
| return false; |
| |
| RetainPtr<CFDictionaryRef> capabilities = adoptCF(VTCopyHEVCDecoderCapabilitiesDictionary()); |
| if (!capabilities) |
| return false; |
| |
| auto supportedProfiles = (CFArrayRef)CFDictionaryGetValue(capabilities.get(), kVTHEVCDecoderCapability_SupportedProfiles); |
| if (!supportedProfiles || CFGetTypeID(supportedProfiles) != CFArrayGetTypeID()) |
| return false; |
| |
| int16_t generalProfileIDC = parameters.generalProfileIDC; |
| auto cfGeneralProfileIDC = adoptCF(CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt16Type, &generalProfileIDC)); |
| auto searchRange = CFRangeMake(0, CFArrayGetCount(supportedProfiles)); |
| if (!CFArrayContainsValue(supportedProfiles, searchRange, cfGeneralProfileIDC.get())) |
| return false; |
| |
| auto perProfileSupport = (CFDictionaryRef)CFDictionaryGetValue(capabilities.get(), kVTHEVCDecoderCapability_PerProfileSupport); |
| if (!perProfileSupport || CFGetTypeID(perProfileSupport) != CFDictionaryGetTypeID()) |
| return false; |
| |
| auto generalProfileIDCString = String::number(generalProfileIDC).createCFString(); |
| auto profileSupport = (CFDictionaryRef)CFDictionaryGetValue(perProfileSupport, generalProfileIDCString.get()); |
| if (!profileSupport || CFGetTypeID(profileSupport) != CFDictionaryGetTypeID()) |
| return false; |
| |
| auto isHardwareAccelerated = (CFBooleanRef)CFDictionaryGetValue(profileSupport, kVTHEVCDecoderProfileCapability_IsHardwareAccelerated); |
| if (isHardwareAccelerated && CFGetTypeID(isHardwareAccelerated) == CFBooleanGetTypeID()) |
| info.powerEfficient = CFBooleanGetValue(isHardwareAccelerated); |
| |
| auto cfMaxDecodeLevel = (CFNumberRef)CFDictionaryGetValue(profileSupport, kVTHEVCDecoderProfileCapability_MaxDecodeLevel); |
| if (cfMaxDecodeLevel && CFGetTypeID(cfMaxDecodeLevel) == CFNumberGetTypeID()) { |
| int16_t maxDecodeLevel = 0; |
| if (!CFNumberGetValue(cfMaxDecodeLevel, kCFNumberSInt16Type, &maxDecodeLevel)) |
| return false; |
| |
| if (parameters.generalLevelIDC > maxDecodeLevel) |
| return false; |
| |
| info.supported = true; |
| } |
| |
| auto cfMaxPlaybackLevel = (CFNumberRef)CFDictionaryGetValue(profileSupport, kVTHEVCDecoderProfileCapability_MaxPlaybackLevel); |
| if (cfMaxPlaybackLevel && CFGetTypeID(cfMaxPlaybackLevel) == CFNumberGetTypeID()) { |
| int16_t maxPlaybackLevel = 0; |
| if (!CFNumberGetValue(cfMaxPlaybackLevel, kCFNumberSInt16Type, &maxPlaybackLevel)) |
| return false; |
| |
| info.smooth = parameters.generalLevelIDC <= maxPlaybackLevel; |
| } |
| |
| return true; |
| } |
| |
| } |
| |
| #endif // PLATFORM(COCOA) |