Index: media/formats/webm/webm_colour_parser.cc |
diff --git a/media/formats/webm/webm_colour_parser.cc b/media/formats/webm/webm_colour_parser.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ddc9b931f304efdc4fb965b965a6688cde0d6ae4 |
--- /dev/null |
+++ b/media/formats/webm/webm_colour_parser.cc |
@@ -0,0 +1,529 @@ |
+// Copyright 2016 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/formats/webm/webm_colour_parser.h" |
+ |
+#include "base/logging.h" |
+#include "media/formats/webm/webm_constants.h" |
+ |
+namespace media { |
+ |
+// The definitions below are copied from the current libwebm top-of-tree. |
+// Chromium's third_party/libwebm doesn't have these yet. We can probably just |
+// include libwebm header directly in the future. |
+// ---- Begin copy/paste from libwebm/webm_parser/include/webm/dom_types.h ---- |
+ |
+/** |
+ A parsed \WebMID{MatrixCoefficients} element. |
+ |
+ Matroska/WebM adopted these values from Table 4 of ISO/IEC 23001-8:2013/DCOR1. |
+ See that document for further details. |
+ */ |
+enum class MatrixCoefficients : std::uint64_t { |
+ /** |
+ The identity matrix. |
+ |
+ Typically used for GBR (often referred to as RGB); however, may also be used |
+ for YZX (often referred to as XYZ). |
+ */ |
+ kRgb = 0, |
+ |
+ /** |
+ Rec. ITU-R BT.709-5. |
+ */ |
+ kBt709 = 1, |
+ |
+ /** |
+ Image characteristics are unknown or are determined by the application. |
+ */ |
+ kUnspecified = 2, |
+ |
+ /** |
+ United States Federal Communications Commission Title 47 Code of Federal |
+ Regulations (2003) 73.682 (a) (20). |
+ */ |
+ kFcc = 4, |
+ |
+ /** |
+ Rec. ITU-R BT.470‑6 System B, G (historical). |
+ */ |
+ kBt470Bg = 5, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 170M (2004). |
+ */ |
+ kSmpte170M = 6, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 240M (1999). |
+ */ |
+ kSmpte240M = 7, |
+ |
+ /** |
+ YCgCo. |
+ */ |
+ kYCgCo = 8, |
+ |
+ /** |
+ Rec. ITU-R BT.2020 (non-constant luminance). |
+ */ |
+ kBt2020NonconstantLuminance = 9, |
+ |
+ /** |
+ Rec. ITU-R BT.2020 (constant luminance). |
+ */ |
+ kBt2020ConstantLuminance = 10, |
+}; |
+ |
+/** |
+ A parsed \WebMID{Range} element. |
+ */ |
+enum class Range : std::uint64_t { |
+ /** |
+ Unspecified. |
+ */ |
+ kUnspecified = 0, |
+ |
+ /** |
+ Broadcast range. |
+ */ |
+ kBroadcast = 1, |
+ |
+ /** |
+ Full range (no clipping). |
+ */ |
+ kFull = 2, |
+ |
+ /** |
+ Defined by MatrixCoefficients/TransferCharacteristics. |
+ */ |
+ kDerived = 3, |
+}; |
+ |
+/** |
+ A parsed \WebMID{TransferCharacteristics} element. |
+ |
+ Matroska/WebM adopted these values from Table 3 of ISO/IEC 23001-8:2013/DCOR1. |
+ See that document for further details. |
+ */ |
+enum class TransferCharacteristics : std::uint64_t { |
+ /** |
+ Rec. ITU-R BT.709-6. |
+ */ |
+ kBt709 = 1, |
+ |
+ /** |
+ Image characteristics are unknown or are determined by the application. |
+ */ |
+ kUnspecified = 2, |
+ |
+ /** |
+ Rec. ITU‑R BT.470‑6 System M (historical) with assumed display gamma 2.2. |
+ */ |
+ kGamma22curve = 4, |
+ |
+ /** |
+ Rec. ITU‑R BT.470-6 System B, G (historical) with assumed display gamma 2.8. |
+ */ |
+ kGamma28curve = 5, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 170M (2004). |
+ */ |
+ kSmpte170M = 6, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 240M (1999). |
+ */ |
+ kSmpte240M = 7, |
+ |
+ /** |
+ Linear transfer characteristics. |
+ */ |
+ kLinear = 8, |
+ |
+ /** |
+ Logarithmic transfer characteristic (100:1 range). |
+ */ |
+ kLog = 9, |
+ |
+ /** |
+ Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range). |
+ */ |
+ kLogSqrt = 10, |
+ |
+ /** |
+ IEC 61966-2-4. |
+ */ |
+ kIec6196624 = 11, |
+ |
+ /** |
+ Rec. ITU‑R BT.1361-0 extended colour gamut system (historical). |
+ */ |
+ kBt1361ExtendedColourGamut = 12, |
+ |
+ /** |
+ IEC 61966-2-1 sRGB or sYCC. |
+ */ |
+ kIec6196621 = 13, |
+ |
+ /** |
+ Rec. ITU-R BT.2020-2 (10-bit system). |
+ */ |
+ k10BitBt2020 = 14, |
+ |
+ /** |
+ Rec. ITU-R BT.2020-2 (12-bit system). |
+ */ |
+ k12BitBt2020 = 15, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers ST 2084. |
+ */ |
+ kSmpteSt2084 = 16, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers ST 428-1. |
+ */ |
+ kSmpteSt4281 = 17, |
+ |
+ /** |
+ Association of Radio Industries and Businesses (ARIB) STD-B67. |
+ */ |
+ kAribStdB67Hlg = 18, |
+}; |
+ |
+/** |
+ A parsed \WebMID{Primaries} element. |
+ |
+ Matroska/WebM adopted these values from Table 2 of ISO/IEC 23001-8:2013/DCOR1. |
+ See that document for further details. |
+ */ |
+enum class Primaries : std::uint64_t { |
+ /** |
+ Rec. ITU‑R BT.709-6. |
+ */ |
+ kBt709 = 1, |
+ |
+ /** |
+ Image characteristics are unknown or are determined by the application. |
+ */ |
+ kUnspecified = 2, |
+ |
+ /** |
+ Rec. ITU‑R BT.470‑6 System M (historical). |
+ */ |
+ kBt470M = 4, |
+ |
+ /** |
+ Rec. ITU‑R BT.470‑6 System B, G (historical). |
+ */ |
+ kBt470Bg = 5, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 170M (2004). |
+ */ |
+ kSmpte170M = 6, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers 240M (1999). |
+ */ |
+ kSmpte240M = 7, |
+ |
+ /** |
+ Generic film. |
+ */ |
+ kFilm = 8, |
+ |
+ /** |
+ Rec. ITU-R BT.2020-2. |
+ */ |
+ kBt2020 = 9, |
+ |
+ /** |
+ Society of Motion Picture and Television Engineers ST 428-1. |
+ */ |
+ kSmpteSt4281 = 10, |
+ |
+ /** |
+ JEDEC P22 phosphors/EBU Tech. 3213-E (1975). |
+ */ |
+ kJedecP22Phosphors = 22, |
+}; |
+ |
+// ---- End copy/paste from libwebm/webm_parser/include/webm/dom_types.h ---- |
+ |
+// Ensure that libwebm enum values match enums in gfx::ColorSpace. |
+#define STATIC_ASSERT_ENUM(a, b) \ |
+ static_assert(static_cast<int>(a) == static_cast<int>(gfx::ColorSpace::b), \ |
+ "mismatching enums: " #a " and " #b) |
+ |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kRgb, MatrixID::RGB); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kBt709, MatrixID::BT709); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kUnspecified, MatrixID::UNSPECIFIED); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kFcc, MatrixID::FCC); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kBt470Bg, MatrixID::BT470BG); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kSmpte170M, MatrixID::SMPTE170M); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kSmpte240M, MatrixID::SMPTE240M); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kYCgCo, MatrixID::YCOCG); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kBt2020NonconstantLuminance, |
+ MatrixID::BT2020_NCL); |
+STATIC_ASSERT_ENUM(MatrixCoefficients::kBt2020ConstantLuminance, |
+ MatrixID::BT2020_CL); |
+ |
+gfx::ColorSpace::MatrixID FromWebMMatrixCoefficients(MatrixCoefficients c) { |
+ return static_cast<gfx::ColorSpace::MatrixID>(c); |
+} |
+ |
+STATIC_ASSERT_ENUM(Range::kUnspecified, RangeID::UNSPECIFIED); |
+STATIC_ASSERT_ENUM(Range::kBroadcast, RangeID::LIMITED); |
+STATIC_ASSERT_ENUM(Range::kFull, RangeID::FULL); |
+STATIC_ASSERT_ENUM(Range::kDerived, RangeID::DERIVED); |
+ |
+gfx::ColorSpace::RangeID FromWebMRange(Range range) { |
+ return static_cast<gfx::ColorSpace::RangeID>(range); |
+} |
+ |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kBt709, TransferID::BT709); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kUnspecified, |
+ TransferID::UNSPECIFIED); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kGamma22curve, TransferID::GAMMA22); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kGamma28curve, TransferID::GAMMA28); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kSmpte170M, TransferID::SMPTE170M); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kSmpte240M, TransferID::SMPTE240M); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kLinear, TransferID::LINEAR); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kLog, TransferID::LOG); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kLogSqrt, TransferID::LOG_SQRT); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kIec6196624, |
+ TransferID::IEC61966_2_4); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kBt1361ExtendedColourGamut, |
+ TransferID::BT1361_ECG); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kIec6196621, |
+ TransferID::IEC61966_2_1); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::k10BitBt2020, |
+ TransferID::BT2020_10); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::k12BitBt2020, |
+ TransferID::BT2020_12); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kSmpteSt2084, |
+ TransferID::SMPTEST2084); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kSmpteSt4281, |
+ TransferID::SMPTEST428_1); |
+STATIC_ASSERT_ENUM(TransferCharacteristics::kAribStdB67Hlg, |
+ TransferID::ARIB_STD_B67); |
+ |
+gfx::ColorSpace::TransferID FromWebMTransferCharacteristics( |
+ TransferCharacteristics tc) { |
+ return static_cast<gfx::ColorSpace::TransferID>(tc); |
+} |
+ |
+STATIC_ASSERT_ENUM(Primaries::kBt709, PrimaryID::BT709); |
+STATIC_ASSERT_ENUM(Primaries::kUnspecified, PrimaryID::UNSPECIFIED); |
+STATIC_ASSERT_ENUM(Primaries::kBt470M, PrimaryID::BT470M); |
+STATIC_ASSERT_ENUM(Primaries::kBt470Bg, PrimaryID::BT470BG); |
+STATIC_ASSERT_ENUM(Primaries::kSmpte170M, PrimaryID::SMPTE170M); |
+STATIC_ASSERT_ENUM(Primaries::kSmpte240M, PrimaryID::SMPTE240M); |
+STATIC_ASSERT_ENUM(Primaries::kFilm, PrimaryID::FILM); |
+STATIC_ASSERT_ENUM(Primaries::kBt2020, PrimaryID::BT2020); |
+STATIC_ASSERT_ENUM(Primaries::kSmpteSt4281, PrimaryID::SMPTEST428_1); |
+ |
+gfx::ColorSpace::PrimaryID FromWebMPrimaries(Primaries primaries) { |
+ return static_cast<gfx::ColorSpace::PrimaryID>(primaries); |
+} |
+ |
+WebMColorMetadata::WebMColorMetadata() {} |
+WebMColorMetadata::WebMColorMetadata(const WebMColorMetadata& rhs) = default; |
+ |
+WebMMasteringMetadataParser::WebMMasteringMetadataParser() {} |
+WebMMasteringMetadataParser::~WebMMasteringMetadataParser() {} |
+ |
+bool WebMMasteringMetadataParser::OnFloat(int id, double val) { |
+ switch (id) { |
+ case kWebMIdPrimaryRChromaticityX: |
+ mastering_metadata_.primary_r_chromaticity_x = val; |
+ break; |
+ case kWebMIdPrimaryRChromaticityY: |
+ mastering_metadata_.primary_r_chromaticity_y = val; |
+ break; |
+ case kWebMIdPrimaryGChromaticityX: |
+ mastering_metadata_.primary_g_chromaticity_x = val; |
+ break; |
+ case kWebMIdPrimaryGChromaticityY: |
+ mastering_metadata_.primary_g_chromaticity_y = val; |
+ break; |
+ case kWebMIdPrimaryBChromaticityX: |
+ mastering_metadata_.primary_b_chromaticity_x = val; |
+ break; |
+ case kWebMIdPrimaryBChromaticityY: |
+ mastering_metadata_.primary_b_chromaticity_y = val; |
+ break; |
+ case kWebMIdWhitePointChromaticityX: |
+ mastering_metadata_.white_point_chromaticity_x = val; |
+ break; |
+ case kWebMIdWhitePointChromaticityY: |
+ mastering_metadata_.white_point_chromaticity_y = val; |
+ break; |
+ case kWebMIdLuminanceMax: |
+ mastering_metadata_.luminance_max = val; |
+ break; |
+ case kWebMIdLuminanceMin: |
+ mastering_metadata_.luminance_min = val; |
+ break; |
+ default: |
+ DVLOG(1) << "Unexpected id in MasteringMetadata: 0x" << std::hex << id; |
+ return false; |
+ } |
+ return true; |
+} |
+ |
+WebMColourParser::WebMColourParser() { |
+ Reset(); |
+} |
+ |
+WebMColourParser::~WebMColourParser() {} |
+ |
+void WebMColourParser::Reset() { |
+ matrix_coefficients_ = -1; |
+ bits_per_channel_ = -1; |
+ chroma_subsampling_horz_ = -1; |
+ chroma_subsampling_vert_ = -1; |
+ cb_subsampling_horz_ = -1; |
+ cb_subsampling_vert_ = -1; |
+ chroma_siting_horz_ = -1; |
+ chroma_siting_vert_ = -1; |
+ range_ = -1; |
+ transfer_characteristics_ = -1; |
+ primaries_ = -1; |
+ max_cll_ = -1; |
+ max_fall_ = -1; |
+} |
+ |
+WebMParserClient* WebMColourParser::OnListStart(int id) { |
+ if (id == kWebMIdMasteringMetadata) { |
+ mastering_metadata_parsed_ = false; |
+ return &mastering_metadata_parser_; |
+ } |
+ |
+ return this; |
+} |
+ |
+bool WebMColourParser::OnListEnd(int id) { |
+ if (id == kWebMIdMasteringMetadata) |
+ mastering_metadata_parsed_ = true; |
+ return true; |
+} |
+ |
+bool WebMColourParser::OnUInt(int id, int64_t val) { |
+ int64_t* dst = nullptr; |
+ |
+ switch (id) { |
+ case kWebMIdMatrixCoefficients: |
+ dst = &matrix_coefficients_; |
+ break; |
+ case kWebMIdBitsPerChannel: |
+ dst = &bits_per_channel_; |
+ break; |
+ case kWebMIdChromaSubsamplingHorz: |
+ dst = &chroma_subsampling_horz_; |
+ break; |
+ case kWebMIdChromaSubsamplingVert: |
+ dst = &chroma_subsampling_vert_; |
+ break; |
+ case kWebMIdCbSubsamplingHorz: |
+ dst = &cb_subsampling_horz_; |
+ break; |
+ case kWebMIdCbSubsamplingVert: |
+ dst = &cb_subsampling_vert_; |
+ break; |
+ case kWebMIdChromaSitingHorz: |
+ dst = &chroma_siting_horz_; |
+ break; |
+ case kWebMIdChromaSitingVert: |
+ dst = &chroma_siting_vert_; |
+ break; |
+ case kWebMIdRange: |
+ dst = &range_; |
+ break; |
+ case kWebMIdTransferCharacteristics: |
+ dst = &transfer_characteristics_; |
+ break; |
+ case kWebMIdPrimaries: |
+ dst = &primaries_; |
+ break; |
+ case kWebMIdMaxCLL: |
+ dst = &max_cll_; |
+ break; |
+ case kWebMIdMaxFALL: |
+ dst = &max_fall_; |
+ break; |
+ default: |
+ return true; |
+ } |
+ |
+ DCHECK(dst); |
+ if (*dst != -1) { |
+ LOG(ERROR) << "Multiple values for id " << std::hex << id << " specified (" |
+ << *dst << " and " << val << ")"; |
+ return false; |
+ } |
+ |
+ *dst = val; |
+ return true; |
+} |
+ |
+WebMColorMetadata WebMColourParser::GetWebMColorMetadata() const { |
+ WebMColorMetadata color_metadata; |
+ |
+ if (bits_per_channel_ != -1) |
+ color_metadata.BitsPerChannel = bits_per_channel_; |
+ |
+ if (chroma_subsampling_horz_ != -1) |
+ color_metadata.ChromaSubsamplingHorz = chroma_subsampling_horz_; |
+ if (chroma_subsampling_vert_ != -1) |
+ color_metadata.ChromaSubsamplingVert = chroma_subsampling_vert_; |
+ if (cb_subsampling_horz_ != -1) |
+ color_metadata.CbSubsamplingHorz = cb_subsampling_horz_; |
+ if (cb_subsampling_vert_ != -1) |
+ color_metadata.CbSubsamplingVert = cb_subsampling_vert_; |
+ if (chroma_siting_horz_ != -1) |
+ color_metadata.ChromaSitingHorz = chroma_siting_horz_; |
+ if (chroma_siting_vert_ != -1) |
+ color_metadata.ChromaSitingVert = chroma_siting_vert_; |
+ |
+ gfx::ColorSpace::MatrixID matrix_id = gfx::ColorSpace::MatrixID::UNSPECIFIED; |
+ if (matrix_coefficients_ != -1) |
+ matrix_id = FromWebMMatrixCoefficients( |
+ static_cast<MatrixCoefficients>(matrix_coefficients_)); |
+ |
+ gfx::ColorSpace::RangeID range_id = gfx::ColorSpace::RangeID::UNSPECIFIED; |
+ if (range_ != -1) |
+ range_id = FromWebMRange(static_cast<Range>(range_)); |
+ |
+ gfx::ColorSpace::TransferID transfer_id = |
+ gfx::ColorSpace::TransferID::UNSPECIFIED; |
+ if (transfer_characteristics_ != -1) |
+ transfer_id = FromWebMTransferCharacteristics( |
+ static_cast<TransferCharacteristics>(transfer_characteristics_)); |
+ |
+ gfx::ColorSpace::PrimaryID primary_id = |
+ gfx::ColorSpace::PrimaryID::UNSPECIFIED; |
+ if (primaries_ != -1) |
+ primary_id = FromWebMPrimaries(static_cast<Primaries>(primaries_)); |
+ |
+ color_metadata.color_space = |
+ gfx::ColorSpace(primary_id, transfer_id, matrix_id, range_id); |
+ |
+ if (max_cll_ != -1) |
+ color_metadata.hdr_metadata.max_cll = max_cll_; |
+ |
+ if (max_fall_ != -1) |
+ color_metadata.hdr_metadata.max_fall = max_fall_; |
+ |
+ if (mastering_metadata_parsed_) |
+ color_metadata.hdr_metadata.mastering_metadata = |
+ mastering_metadata_parser_.GetMasteringMetadata(); |
+ |
+ return color_metadata; |
+} |
+ |
+} // namespace media |