1 /* 2 * Copyright 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "set_browsed_player.h" 18 19 namespace bluetooth { 20 namespace avrcp { 21 22 std::unique_ptr<SetBrowsedPlayerResponseBuilder> 23 SetBrowsedPlayerResponseBuilder::MakeBuilder(Status status, 24 uint16_t uid_counter, 25 uint32_t num_items_in_folder, 26 uint8_t folder_depth, 27 std::string folder_name) { 28 std::unique_ptr<SetBrowsedPlayerResponseBuilder> builder( 29 new SetBrowsedPlayerResponseBuilder( 30 status, uid_counter, num_items_in_folder, folder_depth, folder_name)); 31 32 return builder; 33 } 34 35 size_t SetBrowsedPlayerResponseBuilder::size() const { 36 size_t len = BrowsePacket::kMinSize(); 37 len += 1; // Status 38 39 // If the status isn't success the rest of the fields are ommited 40 if (status_ != Status::NO_ERROR) return len; 41 42 len += 2; // UID Counter 43 len += 4; // Number of items in folder 44 len += 2; // UTF-8 Character Set 45 len += 1; // Folder Depth 46 47 // This is only included if the folder returned isn't the root folder 48 if (folder_depth_ != 0) { 49 len += 2; // Folder Name Size; 50 len += folder_name_.size(); // Folder Name 51 } 52 53 return len; 54 } 55 56 bool SetBrowsedPlayerResponseBuilder::Serialize( 57 const std::shared_ptr<::bluetooth::Packet>& pkt) { 58 ReserveSpace(pkt, size()); 59 60 BrowsePacketBuilder::PushHeader(pkt, size() - BrowsePacket::kMinSize()); 61 62 AddPayloadOctets1(pkt, (uint8_t)status_); 63 64 if (status_ != Status::NO_ERROR) return true; 65 AddPayloadOctets2(pkt, base::ByteSwap(uid_counter_)); 66 AddPayloadOctets4(pkt, base::ByteSwap(num_items_in_folder_)); 67 AddPayloadOctets2(pkt, base::ByteSwap((uint16_t)0x006a)); // UTF-8 68 AddPayloadOctets1(pkt, folder_depth_); 69 70 // Skip adding the folder name if the folder depth is 0 71 if (folder_depth_ == 0) return true; 72 uint16_t folder_name_len = folder_name_.size(); 73 AddPayloadOctets2(pkt, base::ByteSwap(folder_name_len)); 74 for (auto it = folder_name_.begin(); it != folder_name_.end(); it++) { 75 AddPayloadOctets1(pkt, *it); 76 } 77 78 return true; 79 } 80 81 uint16_t SetBrowsedPlayerRequest::GetPlayerId() const { 82 auto it = begin() + BrowsePacket::kMinSize(); 83 return base::ByteSwap(it.extract<uint16_t>()); 84 } 85 86 bool SetBrowsedPlayerRequest::IsValid() const { 87 if (!BrowsePacket::IsValid()) return false; 88 return size() == kMinSize(); 89 } 90 91 std::string SetBrowsedPlayerRequest::ToString() const { 92 std::stringstream ss; 93 ss << "SetBrowsedPlayerRequestPacket: " << std::endl; 94 ss << " PDU = " << GetPdu() << std::endl; 95 ss << " Length = " << GetLength() << std::endl; 96 ss << " Player ID = " << loghex(GetPlayerId()) << std::endl; 97 ss << std::endl; 98 99 return ss.str(); 100 } 101 102 } // namespace avrcp 103 } // namespace bluetooth
