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92 lines
2.6 KiB
92 lines
2.6 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "avrcp_browse_packet.h"
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#include <base/logging.h>
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namespace bluetooth {
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namespace avrcp {
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std::unique_ptr<BrowsePacketBuilder> BrowsePacketBuilder::MakeBuilder(
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BrowsePdu pdu, std::unique_ptr<::bluetooth::PacketBuilder> payload) {
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std::unique_ptr<BrowsePacketBuilder> builder =
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std::unique_ptr<BrowsePacketBuilder>(new BrowsePacketBuilder(pdu));
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builder->payload_ = std::move(payload);
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return builder;
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}
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size_t BrowsePacketBuilder::size() const {
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return BrowsePacket::kMinSize() + payload_->size();
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}
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bool BrowsePacketBuilder::Serialize(
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const std::shared_ptr<::bluetooth::Packet>& pkt) {
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ReserveSpace(pkt, size());
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PushHeader(pkt, payload_->size());
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return payload_->Serialize(pkt);
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}
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void BrowsePacketBuilder::PushHeader(
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const std::shared_ptr<::bluetooth::Packet>& pkt, uint16_t length) {
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AddPayloadOctets1(pkt, (uint8_t)pdu_);
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AddPayloadOctets2(pkt, base::ByteSwap(length));
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}
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std::shared_ptr<BrowsePacket> BrowsePacket::Parse(
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std::shared_ptr<::bluetooth::Packet> pkt) {
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return std::shared_ptr<BrowsePacket>(new BrowsePacket(pkt));
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}
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BrowsePdu BrowsePacket::GetPdu() const {
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return static_cast<BrowsePdu>(*begin());
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}
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uint16_t BrowsePacket::GetLength() const {
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auto it = begin() + static_cast<size_t>(1);
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return it.extractBE<uint16_t>();
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}
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bool BrowsePacket::IsValid() const {
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if (size() < kMinSize()) return false;
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return size() == GetLength() + kMinSize();
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}
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std::string BrowsePacket::ToString() const {
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std::stringstream ss;
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ss << "AvrcpBrowsePacket: " << std::endl;
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ss << " └ PDU = " << GetPdu() << std::endl;
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ss << " └ Length = " << GetLength() << std::endl;
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ss << " └ Payload =";
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for (auto it = begin() + static_cast<size_t>(3); it != end(); it++) {
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ss << " " << loghex(*it);
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}
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ss << std::endl;
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return ss.str();
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}
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std::pair<size_t, size_t> BrowsePacket::GetPayloadIndecies() const {
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return std::pair<size_t, size_t>(packet_start_index_ + 3, packet_end_index_);
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}
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} // namespace avrcp
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} // namespace bluetooth
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