mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-25 20:27:34 +08:00
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
#include "Ack.hpp"
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#include "Common.hpp"
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namespace SRT {
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bool ACKPacket::loadFromData(uint8_t *buf, size_t len) {
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if (len < ACK_CIF_SIZE + ControlPacket::HEADER_SIZE) {
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return false;
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}
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_data = BufferRaw::create();
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_data->assign((char *)(buf), len);
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ControlPacket::loadHeader();
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ack_number = loadUint32(type_specific_info);
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uint8_t *ptr = (uint8_t *)_data->data() + ControlPacket::HEADER_SIZE;
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last_ack_pkt_seq_number = loadUint32(ptr);
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ptr += 4;
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rtt = loadUint32(ptr);
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ptr += 4;
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rtt_variance = loadUint32(ptr);
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ptr += 4;
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available_buf_size = loadUint32(ptr);
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ptr += 4;
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pkt_recv_rate = loadUint32(ptr);
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ptr += 4;
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estimated_link_capacity = loadUint32(ptr);
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ptr += 4;
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recv_rate = loadUint32(ptr);
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ptr += 4;
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return true;
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}
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bool ACKPacket::storeToData() {
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_data = BufferRaw::create();
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_data->setCapacity(HEADER_SIZE + ACK_CIF_SIZE);
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_data->setSize(HEADER_SIZE + ACK_CIF_SIZE);
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control_type = ControlPacket::ACK;
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sub_type = 0;
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storeUint32(type_specific_info, ack_number);
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storeToHeader();
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uint8_t *ptr = (uint8_t *)_data->data() + ControlPacket::HEADER_SIZE;
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storeUint32(ptr, last_ack_pkt_seq_number);
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ptr += 4;
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storeUint32(ptr, rtt);
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ptr += 4;
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storeUint32(ptr, rtt_variance);
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ptr += 4;
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storeUint32(ptr, pkt_recv_rate);
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ptr += 4;
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storeUint32(ptr, available_buf_size);
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ptr += 4;
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storeUint32(ptr, estimated_link_capacity);
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ptr += 4;
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storeUint32(ptr, recv_rate);
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ptr += 4;
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return true;
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}
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std::string ACKPacket::dump() {
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_StrPrinter printer;
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printer << "last_ack_pkt_seq_number=" << last_ack_pkt_seq_number << " rtt=" << rtt
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<< " rtt_variance=" << rtt_variance << " pkt_recv_rate=" << pkt_recv_rate
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<< " available_buf_size=" << available_buf_size << " estimated_link_capacity=" << estimated_link_capacity
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<< " recv_rate=" << recv_rate;
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return std::move(printer);
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}
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} // namespace SRT
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