/*
* MIT License
*
* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
*
* 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.
*/
#include "RtmpPlayer.h"
#include "Rtmp/utils.h"
#include "Util/util.h"
#include "Util/onceToken.h"
#include "Thread/ThreadPool.h"
using namespace toolkit;
using namespace mediakit::Client;
namespace mediakit {
unordered_map<string, RtmpPlayer::rtmpCMDHandle> RtmpPlayer::g_mapCmd;
RtmpPlayer::RtmpPlayer(const EventPoller::Ptr &poller) : TcpClient(poller) {
static onceToken token([]() {
g_mapCmd.emplace("_error",&RtmpPlayer::onCmd_result);
g_mapCmd.emplace("_result",&RtmpPlayer::onCmd_result);
g_mapCmd.emplace("onStatus",&RtmpPlayer::onCmd_onStatus);
g_mapCmd.emplace("onMetaData",&RtmpPlayer::onCmd_onMetaData);
}, []() {});
}
RtmpPlayer::~RtmpPlayer() {
DebugL << endl;
}
void RtmpPlayer::teardown() {
if (alive()) {
_strApp.clear();
_strStream.clear();
_strTcUrl.clear();
{
lock_guard<recursive_mutex> lck(_mtxOnResultCB);
_mapOnResultCB.clear();
}
{
lock_guard<recursive_mutex> lck(_mtxOnStatusCB);
_dqOnStatusCB.clear();
}
_pBeatTimer.reset();
_pPlayTimer.reset();
_pMediaTimer.reset();
_iSeekTo = 0;
CLEAR_ARR(_aiFistStamp);
CLEAR_ARR(_aiNowStamp);
reset();
shutdown(SockException(Err_shutdown,"teardown"));
}
}
void RtmpPlayer::play(const string &strUrl) {
teardown();
string strHost = FindField(strUrl.data(), "://", "/");
_strApp = FindField(strUrl.data(), (strHost + "/").data(), "/");
_strStream = FindField(strUrl.data(), (strHost + "/" + _strApp + "/").data(), NULL);
_strTcUrl = string("rtmp://") + strHost + "/" + _strApp;
if (!_strApp.size() || !_strStream.size()) {
onPlayResult_l(SockException(Err_other,"rtmp url非法"));
return;
}
DebugL << strHost << " " << _strApp << " " << _strStream;
auto iPort = atoi(FindField(strHost.data(), ":", NULL).data());
if (iPort <= 0) {
//rtmp 默认端口1935
iPort = 1935;
} else {
//服务器域名
strHost = FindField(strHost.data(), NULL, ":");
}
if(!(*this)[kNetAdapter].empty()){
setNetAdapter((*this)[kNetAdapter]);
}
weak_ptr<RtmpPlayer> weakSelf= dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
float playTimeOutSec = (*this)[kTimeoutMS].as<int>() / 1000.0;
_pPlayTimer.reset( new Timer(playTimeOutSec, [weakSelf]() {
auto strongSelf=weakSelf.lock();
if(!strongSelf) {
return false;
}
strongSelf->onPlayResult_l(SockException(Err_timeout,"play rtmp timeout"));
return false;
},getPoller()));
startConnect(strHost, iPort , playTimeOutSec);
}
void RtmpPlayer::onErr(const SockException &ex){
onPlayResult_l(ex);
}
void RtmpPlayer::onPlayResult_l(const SockException &ex) {
WarnL << ex.getErrCode() << " " << ex.what();
if(!ex){
//恢复rtmp接收超时定时器
_mediaTicker.resetTime();
weak_ptr<RtmpPlayer> weakSelf = dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
int timeoutMS = (*this)[kMediaTimeoutMS].as<int>();
_pMediaTimer.reset( new Timer(timeoutMS / 2000.0, [weakSelf,timeoutMS]() {
auto strongSelf=weakSelf.lock();
if(!strongSelf) {
return false;
}
if(strongSelf->_mediaTicker.elapsedTime()> timeoutMS) {
//recv media timeout!
strongSelf->onPlayResult_l(SockException(Err_timeout,"recv rtmp timeout"));
return false;
}
return true;
},getPoller()));
}
if (_pPlayTimer) {
//开始播放阶段
_pPlayTimer.reset();
onPlayResult(ex);
}else {
//播放中途阶段
if (ex) {
//播放成功后异常断开回调
onShutdown(ex);
}else{
//恢复播放
onResume();
}
}
if(ex){
teardown();
}
}
void RtmpPlayer::onConnect(const SockException &err){
if(err.getErrCode()!=Err_success) {
onPlayResult_l(err);
return;
}
weak_ptr<RtmpPlayer> weakSelf= dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
startClientSession([weakSelf](){
auto strongSelf=weakSelf.lock();
if(!strongSelf) {
return;
}
strongSelf->send_connect();
});
}
void RtmpPlayer::onRecv(const Buffer::Ptr &pBuf){
try {
onParseRtmp(pBuf->data(), pBuf->size());
} catch (exception &e) {
SockException ex(Err_other, e.what());
onPlayResult_l(ex);
}
}
void RtmpPlayer::pause(bool bPause) {
send_pause(bPause);
}
inline void RtmpPlayer::send_connect() {
AMFValue obj(AMF_OBJECT);
obj.set("app", _strApp);
obj.set("tcUrl", _strTcUrl);
//未使用代理
obj.set("fpad", false);
//参考librtmp,什么作用?
obj.set("capabilities", 15);
//SUPPORT_VID_CLIENT_SEEK 支持seek
obj.set("videoFunction", 1);
//只支持aac
obj.set("audioCodecs", (double)(0x0400));
//只支持H264
obj.set("videoCodecs", (double)(0x0080));
sendInvoke("connect", obj);
addOnResultCB([this](AMFDecoder &dec){
//TraceL << "connect result";
dec.load<AMFValue>();
auto val = dec.load<AMFValue>();
auto level = val["level"].as_string();
auto code = val["code"].as_string();
if(level != "status"){
throw std::runtime_error(StrPrinter <<"connect 失败:" << level << " " << code << endl);
}
send_createStream();
});
}
inline void RtmpPlayer::send_createStream() {
AMFValue obj(AMF_NULL);
sendInvoke("createStream", obj);
addOnResultCB([this](AMFDecoder &dec){
//TraceL << "createStream result";
dec.load<AMFValue>();
_ui32StreamId = dec.load<int>();
send_play();
});
}
inline void RtmpPlayer::send_play() {
AMFEncoder enc;
enc << "play" << ++_iReqID << nullptr << _strStream << (double)_ui32StreamId;
sendRequest(MSG_CMD, enc.data());
auto fun = [this](AMFValue &val){
//TraceL << "play onStatus";
auto level = val["level"].as_string();
auto code = val["code"].as_string();
if(level != "status"){
throw std::runtime_error(StrPrinter <<"play 失败:" << level << " " << code << endl);
}
};
addOnStatusCB(fun);
addOnStatusCB(fun);
}
inline void RtmpPlayer::send_pause(bool bPause) {
AMFEncoder enc;
enc << "pause" << ++_iReqID << nullptr << bPause;
sendRequest(MSG_CMD, enc.data());
auto fun = [this,bPause](AMFValue &val){
//TraceL << "pause onStatus";
auto level = val["level"].as_string();
auto code = val["code"].as_string();
if(level != "status") {
if(!bPause){
throw std::runtime_error(StrPrinter <<"pause 恢复播放失败:" << level << " " << code << endl);
}
}else{
_bPaused = bPause;
if(!bPause){
onPlayResult_l(SockException(Err_success, "rtmp resum success"));
}else{
//暂停播放
_pMediaTimer.reset();
}
}
};
addOnStatusCB(fun);
_pBeatTimer.reset();
if(bPause){
weak_ptr<RtmpPlayer> weakSelf = dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
_pBeatTimer.reset(new Timer((*this)[kBeatIntervalMS].as<int>() / 1000.0,[weakSelf](){
auto strongSelf = weakSelf.lock();
if (!strongSelf){
return false;
}
uint32_t timeStamp = ::time(NULL);
strongSelf->sendUserControl(CONTROL_PING_REQUEST, timeStamp);
return true;
},getPoller()));
}
}
void RtmpPlayer::onCmd_result(AMFDecoder &dec){
auto iReqId = dec.load<int>();
lock_guard<recursive_mutex> lck(_mtxOnResultCB);
auto it = _mapOnResultCB.find(iReqId);
if(it != _mapOnResultCB.end()){
it->second(dec);
_mapOnResultCB.erase(it);
}else{
WarnL << "unhandled _result";
}
}
void RtmpPlayer::onCmd_onStatus(AMFDecoder &dec) {
AMFValue val;
while(true){
val = dec.load<AMFValue>();
if(val.type() == AMF_OBJECT){
break;
}
}
if(val.type() != AMF_OBJECT){
throw std::runtime_error("onStatus:the result object was not found");
}
lock_guard<recursive_mutex> lck(_mtxOnStatusCB);
if(_dqOnStatusCB.size()){
_dqOnStatusCB.front()(val);
_dqOnStatusCB.pop_front();
}else{
auto level = val["level"];
auto code = val["code"].as_string();
if(level.type() == AMF_STRING){
if(level.as_string() != "status"){
throw std::runtime_error(StrPrinter <<"onStatus 失败:" << level.as_string() << " " << code << endl);
}
}
//WarnL << "unhandled onStatus:" << code;
}
}
void RtmpPlayer::onCmd_onMetaData(AMFDecoder &dec) {
//TraceL;
auto val = dec.load<AMFValue>();
if(!onCheckMeta(val)){
throw std::runtime_error("onCheckMeta faied");
}
}
void RtmpPlayer::onStreamDry(uint32_t ui32StreamId) {
//TraceL << ui32StreamId;
onPlayResult_l(SockException(Err_other,"rtmp stream dry"));
}
void RtmpPlayer::onMediaData_l(const RtmpPacket::Ptr &packet) {
_mediaTicker.resetTime();
if(!_pPlayTimer){
//已经触发了onPlayResult事件，直接触发onMediaData事件
onMediaData(packet);
return;
}
if(packet->isCfgFrame()){
//输入配置帧以便初始化完成各个track
onMediaData(packet);
}else{
//先触发onPlayResult事件，这个时候解码器才能初始化完毕
onPlayResult_l(SockException(Err_success,"play rtmp success"));
//触发onPlayResult事件后，再把帧数据输入到解码器
onMediaData(packet);
}
}
void RtmpPlayer::onRtmpChunk(RtmpPacket &chunkData) {
switch (chunkData.typeId) {
case MSG_CMD:
case MSG_CMD3:
case MSG_DATA:
case MSG_DATA3: {
AMFDecoder dec(chunkData.strBuf, 0);
std::string type = dec.load<std::string>();
auto it = g_mapCmd.find(type);
if(it != g_mapCmd.end()){
auto fun = it->second;
(this->*fun)(dec);
}else{
WarnL << "can not support cmd:" << type;
}
}
break;
case MSG_AUDIO:
case MSG_VIDEO: {
auto idx = chunkData.typeId%2;
if (_aNowStampTicker[idx].elapsedTime() > 500) {
//计算播放进度时间轴用
_aiNowStamp[idx] = chunkData.timeStamp;
}
onMediaData_l(std::make_shared<RtmpPacket>(std::move(chunkData)));
}
break;
default:
//WarnL << "unhandled message:" << (int) chunkData.typeId << hexdump(chunkData.strBuf.data(), chunkData.strBuf.size());
break;
}
}
uint32_t RtmpPlayer::getProgressMilliSecond() const{
uint32_t iTime[2] = {0,0};
for(auto i = 0 ;i < 2 ;i++){
iTime[i] = _aiNowStamp[i] - _aiFistStamp[i];
}
return _iSeekTo + MAX(iTime[0],iTime[1]);
}
void RtmpPlayer::seekToMilliSecond(uint32_t seekMS){
if (_bPaused) {
pause(false);
}
AMFEncoder enc;
enc << "seek" << ++_iReqID << nullptr << seekMS * 1.0;
sendRequest(MSG_CMD, enc.data());
addOnStatusCB([this,seekMS](AMFValue &val) {
//TraceL << "seek result";
_aNowStampTicker[0].resetTime();
_aNowStampTicker[1].resetTime();
int iTimeInc = seekMS - getProgressMilliSecond();
for(auto i = 0 ;i < 2 ;i++){
_aiFistStamp[i] = _aiNowStamp[i] + iTimeInc;
_aiNowStamp[i] = _aiFistStamp[i];
}
_iSeekTo = seekMS;
});
}
} /* namespace mediakit */