mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-10-31 16:47:28 +08:00
419 lines
13 KiB
C++
419 lines
13 KiB
C++
/*
|
||
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
|
||
*
|
||
* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
|
||
*
|
||
* Use of this source code is governed by MIT license that can be found in the
|
||
* LICENSE file in the root of the source tree. All contributing project authors
|
||
* may be found in the AUTHORS file in the root of the source tree.
|
||
*/
|
||
|
||
#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 {
|
||
|
||
RtmpPlayer::RtmpPlayer(const EventPoller::Ptr &poller) : TcpClient(poller) {}
|
||
|
||
RtmpPlayer::~RtmpPlayer() {
|
||
DebugL << endl;
|
||
}
|
||
|
||
void RtmpPlayer::teardown() {
|
||
if (alive()) {
|
||
shutdown(SockException(Err_shutdown,"teardown"));
|
||
}
|
||
_app.clear();
|
||
_stream_id.clear();
|
||
_tc_url.clear();
|
||
_beat_timer.reset();
|
||
_play_timer.reset();
|
||
_rtmp_recv_timer.reset();
|
||
_seek_ms = 0;
|
||
RtmpProtocol::reset();
|
||
|
||
CLEAR_ARR(_fist_stamp);
|
||
CLEAR_ARR(_now_stamp);
|
||
|
||
lock_guard<recursive_mutex> lck(_mtx_on_result);
|
||
_map_on_result.clear();
|
||
lock_guard<recursive_mutex> lck2(_mtx_on_status);
|
||
_deque_on_status.clear();
|
||
}
|
||
|
||
void RtmpPlayer::play(const string &strUrl) {
|
||
teardown();
|
||
string host_url = FindField(strUrl.data(), "://", "/");
|
||
_app = FindField(strUrl.data(), (host_url + "/").data(), "/");
|
||
_stream_id = FindField(strUrl.data(), (host_url + "/" + _app + "/").data(), NULL);
|
||
_tc_url = string("rtmp://") + host_url + "/" + _app;
|
||
|
||
if (!_app.size() || !_stream_id.size()) {
|
||
onPlayResult_l(SockException(Err_other, "rtmp url非法"), false);
|
||
return;
|
||
}
|
||
DebugL << host_url << " " << _app << " " << _stream_id;
|
||
|
||
auto iPort = atoi(FindField(host_url.data(), ":", NULL).data());
|
||
if (iPort <= 0) {
|
||
//rtmp 默认端口1935
|
||
iPort = 1935;
|
||
} else {
|
||
//服务器域名
|
||
host_url = FindField(host_url.data(), NULL, ":");
|
||
}
|
||
if (!(*this)[kNetAdapter].empty()) {
|
||
setNetAdapter((*this)[kNetAdapter]);
|
||
}
|
||
|
||
weak_ptr<RtmpPlayer> weak_self = dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
|
||
float play_timeout_sec = (*this)[kTimeoutMS].as<int>() / 1000.0f;
|
||
_play_timer.reset(new Timer(play_timeout_sec, [weak_self]() {
|
||
auto strong_self = weak_self.lock();
|
||
if (!strong_self) {
|
||
return false;
|
||
}
|
||
strong_self->onPlayResult_l(SockException(Err_timeout, "play rtmp timeout"), false);
|
||
return false;
|
||
}, getPoller()));
|
||
|
||
_metadata_got = false;
|
||
startConnect(host_url, iPort, play_timeout_sec);
|
||
}
|
||
|
||
void RtmpPlayer::onErr(const SockException &ex){
|
||
//定时器_pPlayTimer为空后表明握手结束了
|
||
onPlayResult_l(ex, !_play_timer);
|
||
}
|
||
|
||
void RtmpPlayer::onPlayResult_l(const SockException &ex, bool handshake_done) {
|
||
if (ex.getErrCode() == Err_shutdown) {
|
||
//主动shutdown的，不触发回调
|
||
return;
|
||
}
|
||
|
||
WarnL << ex.getErrCode() << " " << ex.what();
|
||
if (!handshake_done) {
|
||
//开始播放阶段
|
||
_play_timer.reset();
|
||
//是否为性能测试模式
|
||
_benchmark_mode = (*this)[Client::kBenchmarkMode].as<int>();
|
||
onPlayResult(ex);
|
||
} else if (ex) {
|
||
//播放成功后异常断开回调
|
||
onShutdown(ex);
|
||
} else {
|
||
//恢复播放
|
||
onResume();
|
||
}
|
||
|
||
if (!ex) {
|
||
//播放成功，恢复rtmp接收超时定时器
|
||
_rtmp_recv_ticker.resetTime();
|
||
auto timeout_ms = (*this)[kMediaTimeoutMS].as<uint64_t>();
|
||
weak_ptr<RtmpPlayer> weakSelf = dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
|
||
auto lam = [weakSelf, timeout_ms]() {
|
||
auto strongSelf = weakSelf.lock();
|
||
if (!strongSelf) {
|
||
return false;
|
||
}
|
||
if (strongSelf->_rtmp_recv_ticker.elapsedTime() > timeout_ms) {
|
||
//接收rtmp媒体数据超时
|
||
SockException ex(Err_timeout, "receive rtmp timeout");
|
||
strongSelf->onPlayResult_l(ex, true);
|
||
return false;
|
||
}
|
||
return true;
|
||
};
|
||
//创建rtmp数据接收超时检测定时器
|
||
_rtmp_recv_timer = std::make_shared<Timer>(timeout_ms / 2000.0f, lam, getPoller());
|
||
} else {
|
||
shutdown(SockException(Err_shutdown,"teardown"));
|
||
}
|
||
}
|
||
|
||
void RtmpPlayer::onConnect(const SockException &err){
|
||
if (err.getErrCode() != Err_success) {
|
||
onPlayResult_l(err, false);
|
||
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 &buf){
|
||
try {
|
||
if (_benchmark_mode && !_play_timer) {
|
||
//在性能测试模式下，如果rtmp握手完毕后，不再解析rtmp包
|
||
_rtmp_recv_ticker.resetTime();
|
||
return;
|
||
}
|
||
onParseRtmp(buf->data(), buf->size());
|
||
} catch (exception &e) {
|
||
SockException ex(Err_other, e.what());
|
||
//定时器_pPlayTimer为空后表明握手结束了
|
||
onPlayResult_l(ex, !_play_timer);
|
||
}
|
||
}
|
||
|
||
void RtmpPlayer::pause(bool bPause) {
|
||
send_pause(bPause);
|
||
}
|
||
|
||
inline void RtmpPlayer::send_connect() {
|
||
AMFValue obj(AMF_OBJECT);
|
||
obj.set("app", _app);
|
||
obj.set("tcUrl", _tc_url);
|
||
//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>();
|
||
_stream_index = dec.load<int>();
|
||
send_play();
|
||
});
|
||
}
|
||
|
||
inline void RtmpPlayer::send_play() {
|
||
AMFEncoder enc;
|
||
enc << "play" << ++_send_req_id << nullptr << _stream_id << (double) _stream_index;
|
||
sendRequest(MSG_CMD, enc.data());
|
||
auto fun = [](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 pause) {
|
||
AMFEncoder enc;
|
||
enc << "pause" << ++_send_req_id << nullptr << pause;
|
||
sendRequest(MSG_CMD, enc.data());
|
||
auto fun = [this, pause](AMFValue &val) {
|
||
//TraceL << "pause onStatus";
|
||
auto level = val["level"].as_string();
|
||
auto code = val["code"].as_string();
|
||
if (level != "status") {
|
||
if (!pause) {
|
||
throw std::runtime_error(StrPrinter << "pause 恢复播放失败:" << level << " " << code << endl);
|
||
}
|
||
} else {
|
||
_paused = pause;
|
||
if (!pause) {
|
||
onPlayResult_l(SockException(Err_success, "resum rtmp success"), true);
|
||
} else {
|
||
//暂停播放
|
||
_rtmp_recv_timer.reset();
|
||
}
|
||
}
|
||
};
|
||
addOnStatusCB(fun);
|
||
|
||
_beat_timer.reset();
|
||
if (pause) {
|
||
weak_ptr<RtmpPlayer> weakSelf = dynamic_pointer_cast<RtmpPlayer>(shared_from_this());
|
||
_beat_timer.reset(new Timer((*this)[kBeatIntervalMS].as<int>() / 1000.0f, [weakSelf]() {
|
||
auto strongSelf = weakSelf.lock();
|
||
if (!strongSelf) {
|
||
return false;
|
||
}
|
||
uint32_t timeStamp = (uint32_t)::time(NULL);
|
||
strongSelf->sendUserControl(CONTROL_PING_REQUEST, timeStamp);
|
||
return true;
|
||
}, getPoller()));
|
||
}
|
||
}
|
||
|
||
void RtmpPlayer::onCmd_result(AMFDecoder &dec){
|
||
auto req_id = dec.load<int>();
|
||
lock_guard<recursive_mutex> lck(_mtx_on_result);
|
||
auto it = _map_on_result.find(req_id);
|
||
if (it != _map_on_result.end()) {
|
||
it->second(dec);
|
||
_map_on_result.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(_mtx_on_status);
|
||
if (_deque_on_status.size()) {
|
||
_deque_on_status.front()(val);
|
||
_deque_on_status.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 failed");
|
||
}
|
||
_metadata_got = true;
|
||
}
|
||
|
||
void RtmpPlayer::onStreamDry(uint32_t stream_index) {
|
||
//TraceL << stream_index;
|
||
onPlayResult_l(SockException(Err_other, "rtmp stream dry"), true);
|
||
}
|
||
|
||
void RtmpPlayer::onMediaData_l(RtmpPacket::Ptr chunk_data) {
|
||
_rtmp_recv_ticker.resetTime();
|
||
if (!_play_timer) {
|
||
//已经触发了onPlayResult事件，直接触发onMediaData事件
|
||
onMediaData(chunk_data);
|
||
return;
|
||
}
|
||
|
||
if (chunk_data->isCfgFrame()) {
|
||
//输入配置帧以便初始化完成各个track
|
||
onMediaData(chunk_data);
|
||
} 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"), false);
|
||
//触发onPlayResult事件后，再把帧数据输入到解码器
|
||
onMediaData(chunk_data);
|
||
}
|
||
}
|
||
|
||
void RtmpPlayer::onRtmpChunk(RtmpPacket::Ptr packet) {
|
||
auto &chunk_data = *packet;
|
||
typedef void (RtmpPlayer::*rtmp_func_ptr)(AMFDecoder &dec);
|
||
static unordered_map<string, rtmp_func_ptr> s_func_map;
|
||
static onceToken token([]() {
|
||
s_func_map.emplace("_error", &RtmpPlayer::onCmd_result);
|
||
s_func_map.emplace("_result", &RtmpPlayer::onCmd_result);
|
||
s_func_map.emplace("onStatus", &RtmpPlayer::onCmd_onStatus);
|
||
s_func_map.emplace("onMetaData", &RtmpPlayer::onCmd_onMetaData);
|
||
});
|
||
|
||
switch (chunk_data.type_id) {
|
||
case MSG_CMD:
|
||
case MSG_CMD3:
|
||
case MSG_DATA:
|
||
case MSG_DATA3: {
|
||
AMFDecoder dec(chunk_data.buffer, 0, (chunk_data.type_id == MSG_DATA3 || chunk_data.type_id == MSG_CMD3) ? 3 : 0);
|
||
std::string type = dec.load<std::string>();
|
||
auto it = s_func_map.find(type);
|
||
if (it != s_func_map.end()) {
|
||
auto fun = it->second;
|
||
(this->*fun)(dec);
|
||
} else {
|
||
WarnL << "can not support cmd:" << type;
|
||
}
|
||
break;
|
||
}
|
||
|
||
case MSG_AUDIO:
|
||
case MSG_VIDEO: {
|
||
auto idx = chunk_data.type_id % 2;
|
||
if (_now_stamp_ticker[idx].elapsedTime() > 500) {
|
||
//计算播放进度时间轴用
|
||
_now_stamp[idx] = chunk_data.time_stamp;
|
||
}
|
||
if (!_metadata_got) {
|
||
if (!onCheckMeta(TitleMeta().getMetadata())) {
|
||
throw std::runtime_error("onCheckMeta failed");
|
||
}
|
||
_metadata_got = true;
|
||
}
|
||
onMediaData_l(std::move(packet));
|
||
break;
|
||
}
|
||
|
||
default: break;
|
||
}
|
||
}
|
||
|
||
uint32_t RtmpPlayer::getProgressMilliSecond() const{
|
||
uint32_t stamp[2] = {0, 0};
|
||
for (auto i = 0; i < 2; i++) {
|
||
stamp[i] = _now_stamp[i] - _fist_stamp[i];
|
||
}
|
||
return _seek_ms + MAX(stamp[0], stamp[1]);
|
||
}
|
||
|
||
void RtmpPlayer::seekToMilliSecond(uint32_t seekMS){
|
||
if (_paused) {
|
||
pause(false);
|
||
}
|
||
AMFEncoder enc;
|
||
enc << "seek" << ++_send_req_id << nullptr << seekMS * 1.0;
|
||
sendRequest(MSG_CMD, enc.data());
|
||
addOnStatusCB([this, seekMS](AMFValue &val) {
|
||
//TraceL << "seek result";
|
||
_now_stamp_ticker[0].resetTime();
|
||
_now_stamp_ticker[1].resetTime();
|
||
int iTimeInc = seekMS - getProgressMilliSecond();
|
||
for (auto i = 0; i < 2; i++) {
|
||
_fist_stamp[i] = _now_stamp[i] + iTimeInc;
|
||
_now_stamp[i] = _fist_stamp[i];
|
||
}
|
||
_seek_ms = seekMS;
|
||
});
|
||
}
|
||
|
||
} /* namespace mediakit */
|