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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "media/formats/webm/webm_colour_parser.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "media/formats/webm/webm_constants.h" | |
9 | |
10 namespace media { | |
11 | |
12 WebMMasteringMetadataParser::WebMMasteringMetadataParser() {} | |
13 WebMMasteringMetadataParser::~WebMMasteringMetadataParser() {} | |
14 | |
15 bool WebMMasteringMetadataParser::OnFloat(int id, double val) { | |
16 switch (id) { | |
17 case kWebMIdPrimaryRChromaticityX: | |
18 mastering_metadata_.PrimaryRChromaticityX = val; | |
19 break; | |
20 case kWebMIdPrimaryRChromaticityY: | |
21 mastering_metadata_.PrimaryRChromaticityY = val; | |
22 break; | |
23 case kWebMIdPrimaryGChromaticityX: | |
24 mastering_metadata_.PrimaryGChromaticityX = val; | |
25 break; | |
26 case kWebMIdPrimaryGChromaticityY: | |
27 mastering_metadata_.PrimaryGChromaticityY = val; | |
28 break; | |
29 case kWebMIdPrimaryBChromaticityX: | |
30 mastering_metadata_.PrimaryBChromaticityX = val; | |
31 break; | |
32 case kWebMIdPrimaryBChromaticityY: | |
33 mastering_metadata_.PrimaryBChromaticityY = val; | |
34 break; | |
35 case kWebMIdWhitePointChromaticityX: | |
36 mastering_metadata_.WhitePointChromaticityX = val; | |
37 break; | |
38 case kWebMIdWhitePointChromaticityY: | |
39 mastering_metadata_.WhitePointChromaticityY = val; | |
40 break; | |
41 case kWebMIdLuminanceMax: | |
42 mastering_metadata_.LuminanceMax = val; | |
43 break; | |
44 case kWebMIdLuminanceMin: | |
45 mastering_metadata_.LuminanceMin = val; | |
46 break; | |
47 default: | |
48 DVLOG(1) << "Unexpected id in MasteringMetadata: 0x" << std::hex << id; | |
49 return false; | |
50 } | |
51 return true; | |
52 } | |
53 | |
54 WebMColourParser::WebMColourParser() { | |
55 Reset(); | |
56 } | |
57 | |
58 WebMColourParser::~WebMColourParser() {} | |
59 | |
60 void WebMColourParser::Reset() { | |
61 matrix_coefficients_ = -1; | |
62 bits_per_channel_ = -1; | |
63 chroma_subsampling_horz_ = -1; | |
64 chroma_subsampling_vert_ = -1; | |
65 cb_subsampling_horz_ = -1; | |
66 cb_subsampling_vert_ = -1; | |
67 chroma_siting_horz_ = -1; | |
68 chroma_siting_vert_ = -1; | |
69 range_ = -1; | |
70 transfer_characteristics_ = -1; | |
71 primaries_ = -1; | |
72 max_cll_ = -1; | |
73 max_fall_ = -1; | |
74 } | |
75 | |
76 WebMParserClient* WebMColourParser::OnListStart(int id) { | |
77 if (id == kWebMIdMasteringMetadata) { | |
78 mastering_metadata_parsed_ = false; | |
79 return &mastering_metadata_parser_; | |
80 } | |
81 | |
82 return this; | |
83 } | |
84 | |
85 bool WebMColourParser::OnListEnd(int id) { | |
86 if (id == kWebMIdMasteringMetadata) | |
87 mastering_metadata_parsed_ = true; | |
88 return true; | |
89 } | |
90 | |
91 bool WebMColourParser::OnUInt(int id, int64_t val) { | |
92 int64_t* dst = nullptr; | |
93 | |
94 switch (id) { | |
95 case kWebMIdMatrixCoefficients: | |
96 dst = &matrix_coefficients_; | |
97 break; | |
98 case kWebMIdBitsPerChannel: | |
99 dst = &bits_per_channel_; | |
100 break; | |
101 case kWebMIdChromaSubsamplingHorz: | |
102 dst = &chroma_subsampling_horz_; | |
103 break; | |
104 case kWebMIdChromaSubsamplingVert: | |
105 dst = &chroma_subsampling_vert_; | |
106 break; | |
107 case kWebMIdCbSubsamplingHorz: | |
108 dst = &cb_subsampling_horz_; | |
109 break; | |
110 case kWebMIdCbSubsamplingVert: | |
111 dst = &cb_subsampling_vert_; | |
112 break; | |
113 case kWebMIdChromaSitingHorz: | |
114 dst = &chroma_siting_horz_; | |
115 break; | |
116 case kWebMIdChromaSitingVert: | |
117 dst = &chroma_siting_vert_; | |
118 break; | |
119 case kWebMIdRange: | |
120 dst = &range_; | |
121 break; | |
122 case kWebMIdTransferCharacteristics: | |
123 dst = &transfer_characteristics_; | |
124 break; | |
125 case kWebMIdPrimaries: | |
126 dst = &primaries_; | |
127 break; | |
128 case kWebMIdMaxCLL: | |
129 dst = &max_cll_; | |
130 break; | |
131 case kWebMIdMaxFALL: | |
132 dst = &max_fall_; | |
133 break; | |
134 default: | |
135 return true; | |
136 } | |
137 | |
138 DCHECK(dst); | |
139 if (*dst != -1) { | |
140 LOG(ERROR) << "Multiple values for id " << std::hex << id << " specified (" | |
141 << *dst << " and " << val << ")"; | |
142 return false; | |
143 } | |
144 | |
145 *dst = val; | |
146 return true; | |
147 } | |
148 | |
149 ColorMetadata WebMColourParser::GetColorMetadata() const { | |
150 ColorMetadata color_metadata; | |
151 | |
152 DCHECK_NE(-1, matrix_coefficients_); | |
153 color_metadata.matrix_coefficients = | |
154 static_cast<MatrixCoefficients>(matrix_coefficients_); | |
155 DCHECK_NE(-1, bits_per_channel_); | |
156 color_metadata.BitsPerChannel = bits_per_channel_; | |
157 | |
158 if (chroma_subsampling_horz_ != -1) | |
halliwell
2016/09/14 18:58:40
is it expected that this data could be missing? L
servolk
2016/09/14 22:34:35
No, it's not expected to be missing, but this read
| |
159 color_metadata.ChromaSubsamplingHorz = chroma_subsampling_horz_; | |
160 if (chroma_subsampling_vert_ != -1) | |
161 color_metadata.ChromaSubsamplingVert = chroma_subsampling_vert_; | |
162 if (cb_subsampling_horz_ != -1) | |
163 color_metadata.CbSubsamplingHorz = cb_subsampling_horz_; | |
164 if (cb_subsampling_vert_ != -1) | |
165 color_metadata.CbSubsamplingVert = cb_subsampling_vert_; | |
166 if (chroma_siting_horz_ != -1) | |
167 color_metadata.ChromaSitingHorz = chroma_siting_horz_; | |
168 if (chroma_siting_vert_ != -1) | |
169 color_metadata.ChromaSitingVert = chroma_siting_vert_; | |
170 | |
171 if (range_ != -1) | |
172 color_metadata.range = static_cast<Range>(range_); | |
173 if (transfer_characteristics_ != -1) | |
174 color_metadata.transfer_characteristics = | |
175 static_cast<TransferCharacteristics>(transfer_characteristics_); | |
176 if (primaries_ != -1) | |
177 color_metadata.primaries = static_cast<Primaries>(primaries_); | |
178 | |
179 DCHECK_NE(-1, max_cll_); | |
180 color_metadata.hdr_metadata.MaxCLL = max_cll_; | |
181 DCHECK_NE(-1, max_fall_); | |
182 color_metadata.hdr_metadata.MaxFALL = max_fall_; | |
183 | |
184 DCHECK(mastering_metadata_parsed_); | |
185 color_metadata.hdr_metadata.mastering_metadata = | |
186 mastering_metadata_parser_.GetMasteringMetadata(); | |
187 return color_metadata; | |
188 } | |
189 | |
190 } // namespace media | |
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