| /* |
| * Copyright (C) 2021 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. |
| */ |
| |
| #include "config.h" |
| #include "FormatDescriptionUtilities.h" |
| |
| #import "FloatSize.h" |
| #import "FourCC.h" |
| #import "HEVCUtilities.h" |
| #import "PlatformVideoColorSpace.h" |
| #import "SharedBuffer.h" |
| |
| #import <pal/cf/CoreMediaSoftLink.h> |
| |
| // Added in macOS 11, iOS 14. |
| #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED < 110000) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED < 140000) |
| constexpr CMVideoCodecType kCMVideoCodecType_VP9 { 'vp09' }; |
| #endif |
| |
| // Added in macOS 11.3, iOS 14.5: |
| #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MAX_ALLOWED < 110300) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MAX_ALLOWED < 140500) |
| constexpr CMVideoCodecType kCMVideoCodecType_DolbyVisionHEVC { 'dvh1' }; |
| #endif |
| |
| namespace WebCore { |
| FloatSize presentationSizeFromFormatDescription(CMFormatDescriptionRef formatDescription) |
| { |
| if (!formatDescription) |
| return { }; |
| |
| return FloatSize(PAL::CMVideoFormatDescriptionGetPresentationDimensions(formatDescription, true, true)); |
| } |
| |
| std::optional<PlatformVideoColorSpace> colorSpaceFromFormatDescription(CMFormatDescriptionRef formatDescription) |
| { |
| if (!formatDescription) |
| return std::nullopt; |
| |
| PlatformVideoColorSpace colorSpace; |
| if (auto primaries = static_cast<CFStringRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_ColorPrimaries()))) { |
| if (safeCFEqual(primaries, PAL::get_CoreMedia_kCMFormatDescriptionColorPrimaries_ITU_R_709_2())) |
| colorSpace.primaries = PlatformVideoColorPrimaries::Bt709; |
| else if (safeCFEqual(primaries, PAL::get_CoreMedia_kCMFormatDescriptionColorPrimaries_EBU_3213())) |
| colorSpace.primaries = PlatformVideoColorPrimaries::Bt470bg; |
| else if (safeCFEqual(primaries, PAL::get_CoreMedia_kCMFormatDescriptionColorPrimaries_SMPTE_C())) |
| colorSpace.primaries = PlatformVideoColorPrimaries::Smpte170m; |
| } |
| |
| if (auto transfer = static_cast<CFStringRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_TransferFunction()))) { |
| if (safeCFEqual(transfer, PAL::get_CoreMedia_kCMFormatDescriptionTransferFunction_ITU_R_709_2())) |
| colorSpace.transfer = PlatformVideoTransferCharacteristics::Bt709; |
| else if (safeCFEqual(transfer, PAL::get_CoreMedia_kCMFormatDescriptionTransferFunction_sRGB())) |
| colorSpace.transfer = PlatformVideoTransferCharacteristics::Iec6196621; |
| } |
| |
| if (auto matrix = static_cast<CFStringRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_YCbCrMatrix()))) { |
| if (safeCFEqual(matrix, PAL::get_CoreMedia_kCVImageBufferYCbCrMatrix_ITU_R_709_2())) |
| colorSpace.matrix = PlatformVideoMatrixCoefficients::Bt709; |
| else if (safeCFEqual(matrix, PAL::get_CoreMedia_kCVImageBufferYCbCrMatrix_ITU_R_601_4())) |
| colorSpace.matrix = PlatformVideoMatrixCoefficients::Bt470bg; |
| else if (safeCFEqual(matrix, PAL::get_CoreMedia_kCMFormatDescriptionYCbCrMatrix_SMPTE_240M_1995())) |
| colorSpace.matrix = PlatformVideoMatrixCoefficients::Smpte170m; |
| } |
| |
| if (auto fullRange = static_cast<CFBooleanRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_FullRangeVideo()))) |
| colorSpace.fullRange = CFBooleanGetValue(fullRange); |
| |
| return colorSpace; |
| } |
| |
| String codecFromFormatDescription(CMFormatDescriptionRef formatDescription) |
| { |
| if (!formatDescription) |
| return emptyString(); |
| |
| auto subType = PAL::softLink_CoreMedia_CMFormatDescriptionGetMediaSubType(formatDescription); |
| switch (subType) { |
| case kCMVideoCodecType_H264: |
| case 'cavc': |
| { |
| auto sampleExtensionsDict = static_cast<CFDictionaryRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms())); |
| if (!sampleExtensionsDict) |
| return "avc1"_s; |
| auto sampleExtensions = static_cast<CFDataRef>(CFDictionaryGetValue(sampleExtensionsDict, CFSTR("avcC"))); |
| if (!sampleExtensions) |
| return "avc1"_s; |
| auto configurationRecordBuffer = SharedBuffer::create(sampleExtensions); |
| auto parameters = parseAVCDecoderConfigurationRecord(configurationRecordBuffer); |
| if (!parameters) |
| return "avc1"_s; |
| return createAVCCodecParametersString(*parameters); |
| } |
| case kCMVideoCodecType_HEVC: |
| case kCMVideoCodecType_HEVCWithAlpha: |
| case 'chvc': |
| { |
| auto sampleExtensionsDict = static_cast<CFDictionaryRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms())); |
| if (!sampleExtensionsDict) |
| return "hvc1"_s; |
| auto sampleExtensions = static_cast<CFDataRef>(CFDictionaryGetValue(sampleExtensionsDict, CFSTR("hvcC"))); |
| if (!sampleExtensions) |
| return "hvc1"_s; |
| auto configurationRecordBuffer = SharedBuffer::create(sampleExtensions); |
| auto parameters = parseHEVCDecoderConfigurationRecord(kCMVideoCodecType_HEVC, configurationRecordBuffer); |
| if (!parameters) |
| return "hvc1"_s; |
| return createHEVCCodecParametersString(*parameters); |
| } |
| case kCMVideoCodecType_DolbyVisionHEVC: |
| case 'cdh1': |
| { |
| auto sampleExtensionsDict = static_cast<CFDictionaryRef>(PAL::CMFormatDescriptionGetExtension(formatDescription, PAL::get_CoreMedia_kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms())); |
| if (!sampleExtensionsDict) |
| return "dvh1"_s; |
| auto sampleExtensions = static_cast<CFDataRef>(CFDictionaryGetValue(sampleExtensionsDict, CFSTR("dvcC"))); |
| if (!sampleExtensions) |
| return "dvh1"_s; |
| auto configurationRecordBuffer = SharedBuffer::create(sampleExtensions); |
| auto parameters = parseDoViDecoderConfigurationRecord(configurationRecordBuffer); |
| if (!parameters) |
| return "dvh1"_s; |
| return createDoViCodecParametersString(*parameters); |
| } |
| case kCMVideoCodecType_MPEG4Video: |
| return "mp4v"_s; |
| case kCMVideoCodecType_VP9: |
| return "vp09"_s; |
| case kAudioFormatAC3: |
| return "ac-3"_s; |
| case kAudioFormatMPEG4AAC: |
| return "mp4a.40.2"_s; |
| case kAudioFormatMPEG4AAC_HE: |
| return "mp4a.40.5"_s; |
| case kAudioFormatMPEG4AAC_HE_V2: |
| return "mp4a.40.29"_s; |
| case kAudioFormatMPEG4AAC_LD: |
| return "mp4a.40.23"_s; |
| case kAudioFormatMPEG4AAC_ELD: |
| return "mp4a.40.39"_s; |
| case kAudioFormatFLAC: |
| return "flac"_s; |
| case kAudioFormatOpus: |
| return "opus"_s; |
| case kAudioFormatEnhancedAC3: |
| case 'ec+3': |
| case 'qec3': |
| case 'ce-3': |
| return "ec-3"_s; |
| case 'dts ': |
| return "dts"_s; |
| } |
| |
| return emptyString(); |
| } |
| |
| |
| } |
