Add a new incremental parsing API

Change-Id: I6b921766836d58df0281fb23b2add3f62a478e14

webm_parser/src/mastering_metadata_parser.h

@@ -0,0 +1,57 @@
+// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree. An additional intellectual property rights grant can be found
+// in the file PATENTS.  All contributing project authors may
+// be found in the AUTHORS file in the root of the source tree.
+#ifndef SRC_MASTERING_METADATA_PARSER_H_
+#define SRC_MASTERING_METADATA_PARSER_H_
+
+#include "src/float_parser.h"
+#include "src/master_value_parser.h"
+#include "webm/dom_types.h"
+#include "webm/id.h"
+
+namespace webm {
+
+// Spec reference:
+// http://matroska.org/technical/specs/index.html#MasteringMetadata
+// http://www.webmproject.org/docs/container/#MasteringMetadata
+class MasteringMetadataParser : public MasterValueParser<MasteringMetadata> {
+ public:
+  MasteringMetadataParser()
+      : MasterValueParser<MasteringMetadata>(
+            MakeChild<FloatParser>(
+                Id::kPrimaryRChromaticityX,
+                &MasteringMetadata::primary_r_chromaticity_x),
+            MakeChild<FloatParser>(
+                Id::kPrimaryRChromaticityY,
+                &MasteringMetadata::primary_r_chromaticity_y),
+            MakeChild<FloatParser>(
+                Id::kPrimaryGChromaticityX,
+                &MasteringMetadata::primary_g_chromaticity_x),
+            MakeChild<FloatParser>(
+                Id::kPrimaryGChromaticityY,
+                &MasteringMetadata::primary_g_chromaticity_y),
+            MakeChild<FloatParser>(
+                Id::kPrimaryBChromaticityX,
+                &MasteringMetadata::primary_b_chromaticity_x),
+            MakeChild<FloatParser>(
+                Id::kPrimaryBChromaticityY,
+                &MasteringMetadata::primary_b_chromaticity_y),
+            MakeChild<FloatParser>(
+                Id::kWhitePointChromaticityX,
+                &MasteringMetadata::white_point_chromaticity_x),
+            MakeChild<FloatParser>(
+                Id::kWhitePointChromaticityY,
+                &MasteringMetadata::white_point_chromaticity_y),
+            MakeChild<FloatParser>(Id::kLuminanceMax,
+                                   &MasteringMetadata::luminance_max),
+            MakeChild<FloatParser>(Id::kLuminanceMin,
+                                   &MasteringMetadata::luminance_min)) {}
+};
+
+}  // namespace webm
+
+#endif  // SRC_MASTERING_METADATA_PARSER_H_