Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.h b/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.h
new file mode 100644
index 0000000000..8d6e4b8d37
--- /dev/null
+++ b/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_dependency_descriptor_extension.h
@@ -0,0 +1,59 @@
+/*
+ *  Copyright (c) 2019 The WebRTC 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 MODULES_RTP_RTCP_SOURCE_RTP_DEPENDENCY_DESCRIPTOR_EXTENSION_H_
+#define MODULES_RTP_RTCP_SOURCE_RTP_DEPENDENCY_DESCRIPTOR_EXTENSION_H_
+
+#include <bitset>
+#include <cstdint>
+
+#include "absl/strings/string_view.h"
+#include "api/array_view.h"
+#include "api/rtp_parameters.h"
+#include "api/transport/rtp/dependency_descriptor.h"
+#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+
+namespace webrtc {
+// Trait to read/write the dependency descriptor extension as described in
+// https://aomediacodec.github.io/av1-rtp-spec/#dependency-descriptor-rtp-header-extension
+class RtpDependencyDescriptorExtension {
+ public:
+  static constexpr RTPExtensionType kId = kRtpExtensionDependencyDescriptor;
+  static constexpr absl::string_view Uri() {
+    return RtpExtension::kDependencyDescriptorUri;
+  }
+
+  static bool Parse(rtc::ArrayView<const uint8_t> data,
+                    const FrameDependencyStructure* structure,
+                    DependencyDescriptor* descriptor);
+
+  static size_t ValueSize(const FrameDependencyStructure& structure,
+                          const DependencyDescriptor& descriptor) {
+    return ValueSize(structure, kAllChainsAreActive, descriptor);
+  }
+  static size_t ValueSize(const FrameDependencyStructure& structure,
+                          std::bitset<32> active_chains,
+                          const DependencyDescriptor& descriptor);
+  static bool Write(rtc::ArrayView<uint8_t> data,
+                    const FrameDependencyStructure& structure,
+                    const DependencyDescriptor& descriptor) {
+    return Write(data, structure, kAllChainsAreActive, descriptor);
+  }
+  static bool Write(rtc::ArrayView<uint8_t> data,
+                    const FrameDependencyStructure& structure,
+                    std::bitset<32> active_chains,
+                    const DependencyDescriptor& descriptor);
+
+ private:
+  static constexpr std::bitset<32> kAllChainsAreActive = ~uint32_t{0};
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_RTP_RTCP_SOURCE_RTP_DEPENDENCY_DESCRIPTOR_EXTENSION_H_