1 // Copyright 2020 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 #ifndef CAST_STREAMING_SENDER_MESSAGE_H_ 6 #define CAST_STREAMING_SENDER_MESSAGE_H_ 7 8 #include <memory> 9 #include <string> 10 #include <vector> 11 12 #include "absl/types/variant.h" 13 #include "cast/streaming/offer_messages.h" 14 #include "json/value.h" 15 #include "platform/base/error.h" 16 #include "util/osp_logging.h" 17 18 namespace openscreen { 19 namespace cast { 20 21 struct SenderMessage { 22 public: 23 // Receiver response message type. 24 enum class Type { 25 // Unknown message type. 26 kUnknown, 27 28 // OFFER request message. 29 kOffer, 30 31 // GET_CAPABILITIES request message. 32 kGetCapabilities, 33 34 // Rpc binary messages. The payload is base64-encoded. 35 kRpc, 36 }; 37 38 static ErrorOr<SenderMessage> Parse(const Json::Value& value); 39 ErrorOr<Json::Value> ToJson() const; 40 41 Type type = Type::kUnknown; 42 int32_t sequence_number = -1; 43 bool valid = false; 44 absl::variant<absl::monostate, 45 std::vector<uint8_t>, // Binary-encoded RPC message. 46 Offer, 47 std::string> 48 body; 49 }; 50 51 } // namespace cast 52 } // namespace openscreen 53 54 #endif // CAST_STREAMING_SENDER_MESSAGE_H_ 55