ZLMediaKit/src/Rtp/RtpSelector.cpp
xiongziliang c353c626c1 1、根据PS获取时间戳
2、修复rtp代理可能花屏的问题
2019-12-16 11:00:40 +08:00

105 lines
3.1 KiB
C++

/*
* MIT License
*
* Copyright (c) 2019 Gemfield <gemfield@civilnet.cn>
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#if defined(ENABLE_RTPPROXY)
#include "RtpSelector.h"
namespace mediakit{
INSTANCE_IMP(RtpSelector);
bool RtpSelector::inputRtp(const char *data, int data_len,const struct sockaddr *addr,uint32_t *dts_out) {
if(_last_rtp_time.elapsedTime() > 3000){
_last_rtp_time.resetTime();
onManager();
}
auto ssrc = getSSRC(data,data_len);
if(!ssrc){
WarnL << "get ssrc from rtp failed:" << data_len;
return false;
}
auto process = getProcess(ssrc, true);
if(process){
return process->inputRtp(data,data_len, addr,dts_out);
}
return false;
}
uint32_t RtpSelector::getSSRC(const char *data, int data_len) {
if(data_len < 12){
return 0;
}
uint32_t *ssrc_ptr = (uint32_t *)(data + 8);
return ntohl(*ssrc_ptr);
}
RtpProcess::Ptr RtpSelector::getProcess(uint32_t ssrc,bool makeNew) {
lock_guard<decltype(_mtx_map)> lck(_mtx_map);
auto it = _map_rtp_process.find(ssrc);
if(it == _map_rtp_process.end() && !makeNew){
return nullptr;
}
RtpProcess::Ptr &ref = _map_rtp_process[ssrc];
if(!ref){
ref = std::make_shared<RtpProcess>(ssrc);
}
return ref;
}
void RtpSelector::delProcess(uint32_t ssrc,const RtpProcess *ptr) {
lock_guard<decltype(_mtx_map)> lck(_mtx_map);
auto it = _map_rtp_process.find(ssrc);
if(it == _map_rtp_process.end()){
return;
}
if(it->second.get() != ptr){
return;
}
_map_rtp_process.erase(it);
}
void RtpSelector::onManager() {
lock_guard<decltype(_mtx_map)> lck(_mtx_map);
for (auto it = _map_rtp_process.begin(); it != _map_rtp_process.end();) {
if (it->second->alive()) {
++it;
continue;
}
WarnL << "RtpProcess timeout:" << printSSRC(it->first);
it = _map_rtp_process.erase(it);
}
}
RtpSelector::RtpSelector() {
}
RtpSelector::~RtpSelector() {
}
}//namespace mediakit
#endif//defined(ENABLE_RTPPROXY)