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perf: 调整VideoStack相关代码 (#3642)

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1. 修复编译宏不生效问题
2. 新增reset接口，用于不断流的情况下变更拼接参数
This commit is contained in:
KkemChen 2024-06-19 14:06:02 +08:00 committed by GitHub
parent efc683228c
commit 2f6723f602
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4 changed files with 267 additions and 321 deletions
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9
CMakeLists.txt
View File

@ -452,6 +452,15 @@ elseif(NOT ANDROID OR IOS)
update_cached_list(MK_LINK_LIBRARIES pthread)
endif()
if(ENABLE_VIDEOSTACK)
if(ENABLE_FFMPEG AND ENABLE_X264)
message(STATUS "ENABLE_VIDEOSTACK defined")
update_cached_list(MK_COMPILE_DEFINITIONS ENABLE_VIDEOSTACK)
else()
message(WARNING "ENABLE_VIDEOSTACK requires ENABLE_FFMPEG and ENABLE_X264")
endif ()
endif ()
# ----------------------------------------------------------------------------
# Solution folders:
# ----------------------------------------------------------------------------

443
server/VideoStack.cpp
View File

@ -18,23 +18,15 @@
// ITU-R BT.709
#define RGB_TO_Y(R, G, B) (((47 * (R) + 157 * (G) + 16 * (B) + 128) >> 8) + 16)
#define RGB_TO_U(R, G, B) (((-26 * (R)-87 * (G) + 112 * (B) + 128) >> 8) + 128)
#define RGB_TO_V(R, G, B) (((112 * (R)-102 * (G)-10 * (B) + 128) >> 8) + 128)
#define RGB_TO_U(R, G, B) (((-26 * (R) - 87 * (G) + 112 * (B) + 128) >> 8) + 128)
#define RGB_TO_V(R, G, B) (((112 * (R) - 102 * (G) - 10 * (B) + 128) >> 8) + 128)
INSTANCE_IMP(VideoStackManager)
Param::~Param()
{
VideoStackManager::Instance().unrefChannel(
id, width, height, pixfmt);
}
Param::~Param() { VideoStackManager::Instance().unrefChannel(id, width, height, pixfmt); }
Channel::Channel(const std::string& id, int width, int height, AVPixelFormat pixfmt)
: _id(id)
, _width(width)
, _height(height)
, _pixfmt(pixfmt)
{
: _id(id), _width(width), _height(height), _pixfmt(pixfmt) {
_tmp = std::make_shared<mediakit::FFmpegFrame>();
_tmp->get()->width = _width;
@ -53,88 +45,72 @@ Channel::Channel(const std::string& id, int width, int height, AVPixelFormat pix
_tmp = _sws->inputFrame(frame);
}
void Channel::addParam(const std::weak_ptr<Param>& p)
{
void Channel::addParam(const std::weak_ptr<Param>& p) {
std::lock_guard<std::recursive_mutex> lock(_mx);
_params.push_back(p);
}
void Channel::onFrame(const mediakit::FFmpegFrame::Ptr& frame)
{
void Channel::onFrame(const mediakit::FFmpegFrame::Ptr& frame) {
std::weak_ptr<Channel> weakSelf = shared_from_this();
_poller = _poller ? _poller : toolkit::WorkThreadPool::Instance().getPoller();
_poller->async([weakSelf, frame]() {
auto self = weakSelf.lock();
if (!self) {
return;
}
if (!self) { return; }
self->_tmp = self->_sws->inputFrame(frame);
self->forEachParam([self](const Param::Ptr& p) { self->fillBuffer(p); });
});
}
void Channel::forEachParam(const std::function<void(const Param::Ptr&)>& func)
{
void Channel::forEachParam(const std::function<void(const Param::Ptr&)>& func) {
for (auto& wp : _params) {
if (auto sp = wp.lock()) {
func(sp);
}
if (auto sp = wp.lock()) { func(sp); }
}
}
void Channel::fillBuffer(const Param::Ptr& p)
{
if (auto buf = p->weak_buf.lock()) {
copyData(buf, p);
}
void Channel::fillBuffer(const Param::Ptr& p) {
if (auto buf = p->weak_buf.lock()) { copyData(buf, p); }
}
void Channel::copyData(const mediakit::FFmpegFrame::Ptr& buf, const Param::Ptr& p)
{
void Channel::copyData(const mediakit::FFmpegFrame::Ptr& buf, const Param::Ptr& p) {
switch (p->pixfmt) {
case AV_PIX_FMT_YUV420P: {
for (int i = 0; i < p->height; i++) {
memcpy(buf->get()->data[0] + buf->get()->linesize[0] * (i + p->posY) + p->posX,
_tmp->get()->data[0] + _tmp->get()->linesize[0] * i,
_tmp->get()->width);
}
//确保height为奇数时，也能正确的复制到最后一行uv数据
for (int i = 0; i < (p->height + 1) / 2; i++) {
// U平面
memcpy(buf->get()->data[1] + buf->get()->linesize[1] * (i + p->posY / 2) + p->posX / 2,
_tmp->get()->data[1] + _tmp->get()->linesize[1] * i,
_tmp->get()->width / 2);
case AV_PIX_FMT_YUV420P: {
for (int i = 0; i < p->height; i++) {
memcpy(buf->get()->data[0] + buf->get()->linesize[0] * (i + p->posY) + p->posX,
_tmp->get()->data[0] + _tmp->get()->linesize[0] * i, _tmp->get()->width);
}
// 确保height为奇数时，也能正确的复制到最后一行uv数据
for (int i = 0; i < (p->height + 1) / 2; i++) {
// U平面
memcpy(buf->get()->data[1] + buf->get()->linesize[1] * (i + p->posY / 2) +
p->posX / 2,
_tmp->get()->data[1] + _tmp->get()->linesize[1] * i, _tmp->get()->width / 2);
// V平面
memcpy(buf->get()->data[2] + buf->get()->linesize[2] * (i + p->posY / 2) + p->posX / 2,
_tmp->get()->data[2] + _tmp->get()->linesize[2] * i,
_tmp->get()->width / 2);
// V平面
memcpy(buf->get()->data[2] + buf->get()->linesize[2] * (i + p->posY / 2) +
p->posX / 2,
_tmp->get()->data[2] + _tmp->get()->linesize[2] * i, _tmp->get()->width / 2);
}
break;
}
case AV_PIX_FMT_NV12: {
// TODO: 待实现
break;
}
break;
}
case AV_PIX_FMT_NV12: {
//TODO: 待实现
break;
}
default:
WarnL << "No support pixformat: " << av_get_pix_fmt_name(p->pixfmt);
break;
default: WarnL << "No support pixformat: " << av_get_pix_fmt_name(p->pixfmt); break;
}
}
void StackPlayer::addChannel(const std::weak_ptr<Channel>& chn)
{
void StackPlayer::addChannel(const std::weak_ptr<Channel>& chn) {
std::lock_guard<std::recursive_mutex> lock(_mx);
_channels.push_back(chn);
}
void StackPlayer::play()
{
void StackPlayer::play() {
auto url = _url;
//创建拉流 解码对象
// 创建拉流 解码对象
_player = std::make_shared<mediakit::MediaPlayer>();
std::weak_ptr<mediakit::MediaPlayer> weakPlayer = _player;
@ -146,13 +122,9 @@ void StackPlayer::play()
_player->setOnPlayResult([weakPlayer, weakSelf, url](const toolkit::SockException& ex) mutable {
TraceL << "StackPlayer: " << url << " OnPlayResult: " << ex.what();
auto strongPlayer = weakPlayer.lock();
if (!strongPlayer) {
return;
}
if (!strongPlayer) { return; }
auto self = weakSelf.lock();
if (!self) {
return;
}
if (!self) { return; }
if (!ex) {
// 取消定时器
@ -164,19 +136,18 @@ void StackPlayer::play()
self->rePlay(url);
}
auto videoTrack = std::dynamic_pointer_cast<mediakit::VideoTrack>(strongPlayer->getTrack(mediakit::TrackVideo, false));
//auto audioTrack = std::dynamic_pointer_cast<mediakit::AudioTrack>(strongPlayer->getTrack(mediakit::TrackAudio, false));
auto videoTrack = std::dynamic_pointer_cast<mediakit::VideoTrack>(
strongPlayer->getTrack(mediakit::TrackVideo, false));
// auto audioTrack = std::dynamic_pointer_cast<mediakit::AudioTrack>(strongPlayer->getTrack(mediakit::TrackAudio, false));
if (videoTrack) {
//TODO:添加使用显卡还是cpu解码的判断逻辑
//auto decoder = std::make_shared<FFmpegDecoder>(videoTrack, 1, std::vector<std::string>{ "hevc_cuvid", "h264_cuvid"});
auto decoder = std::make_shared<mediakit::FFmpegDecoder>(videoTrack, 0, std::vector<std::string> { "h264", "hevc" });
// TODO:添加使用显卡还是cpu解码的判断逻辑
auto decoder = std::make_shared<mediakit::FFmpegDecoder>(
videoTrack, 0, std::vector<std::string>{"h264", "hevc"});
decoder->setOnDecode([weakSelf](const mediakit::FFmpegFrame::Ptr& frame) mutable {
auto self = weakSelf.lock();
if (!self) {
return;
}
if (!self) { return; }
self->onFrame(frame);
});
@ -190,14 +161,10 @@ void StackPlayer::play()
_player->setOnShutdown([weakPlayer, url, weakSelf](const toolkit::SockException& ex) {
TraceL << "StackPlayer: " << url << " OnShutdown: " << ex.what();
auto strongPlayer = weakPlayer.lock();
if (!strongPlayer) {
return;
}
if (!strongPlayer) { return; }
auto self = weakSelf.lock();
if (!self) {
return;
}
if (!self) { return; }
self->onDisconnect();
@ -207,18 +174,14 @@ void StackPlayer::play()
_player->play(url);
}
void StackPlayer::onFrame(const mediakit::FFmpegFrame::Ptr& frame)
{
void StackPlayer::onFrame(const mediakit::FFmpegFrame::Ptr& frame) {
std::lock_guard<std::recursive_mutex> lock(_mx);
for (auto& weak_chn : _channels) {
if (auto chn = weak_chn.lock()) {
chn->onFrame(frame);
}
if (auto chn = weak_chn.lock()) { chn->onFrame(frame); }
}
}
void StackPlayer::onDisconnect()
{
void StackPlayer::onDisconnect() {
std::lock_guard<std::recursive_mutex> lock(_mx);
for (auto& weak_chn : _channels) {
if (auto chn = weak_chn.lock()) {
@ -228,31 +191,22 @@ void StackPlayer::onDisconnect()
}
}
void StackPlayer::rePlay(const std::string& url)
{
void StackPlayer::rePlay(const std::string& url) {
_failedCount++;
auto delay = MAX(2 * 1000, MIN(_failedCount * 3 * 1000, 60 * 1000)); //步进延迟 重试间隔
auto delay = MAX(2 * 1000, MIN(_failedCount * 3 * 1000, 60 * 1000));// 步进延迟 重试间隔
std::weak_ptr<StackPlayer> weakSelf = shared_from_this();
_timer = std::make_shared<toolkit::Timer>(
delay / 1000.0f, [weakSelf, url]() {
auto self = weakSelf.lock();
if (!self) {
}
WarnL << "replay [" << self->_failedCount << "]:" << url;
self->_player->play(url);
return false;
},
nullptr);
_timer = std::make_shared<toolkit::Timer>(delay / 1000.0f, [weakSelf, url]() {
auto self = weakSelf.lock();
if (!self) {}
WarnL << "replay [" << self->_failedCount << "]:" << url;
self->_player->play(url);
return false;
}, nullptr);
}
VideoStack::VideoStack(const std::string& id, int width, int height, AVPixelFormat pixfmt, float fps, int bitRate)
: _id(id)
, _width(width)
, _height(height)
, _pixfmt(pixfmt)
, _fps(fps)
, _bitRate(bitRate)
{
VideoStack::VideoStack(const std::string& id, int width, int height, AVPixelFormat pixfmt,
float fps, int bitRate)
: _id(id), _width(width), _height(height), _pixfmt(pixfmt), _fps(fps), _bitRate(bitRate) {
_buffer = std::make_shared<mediakit::FFmpegFrame>();
@ -262,7 +216,8 @@ VideoStack::VideoStack(const std::string& id, int width, int height, AVPixelForm
av_frame_get_buffer(_buffer->get(), 32);
_dev = std::make_shared<mediakit::DevChannel>(mediakit::MediaTuple { DEFAULT_VHOST, "live", _id });
_dev = std::make_shared<mediakit::DevChannel>(
mediakit::MediaTuple{DEFAULT_VHOST, "live", _id, ""});
mediakit::VideoInfo info;
info.codecId = mediakit::CodecH264;
@ -272,34 +227,28 @@ VideoStack::VideoStack(const std::string& id, int width, int height, AVPixelForm
info.iBitRate = _bitRate;
_dev->initVideo(info);
//dev->initAudio(); //TODO:音频
// dev->initAudio(); //TODO:音频
_dev->addTrackCompleted();
_isExit = false;
}
VideoStack::~VideoStack()
{
VideoStack::~VideoStack() {
_isExit = true;
if (_thread.joinable()) {
_thread.join();
}
if (_thread.joinable()) { _thread.join(); }
}
void VideoStack::setParam(const Params& params)
{
void VideoStack::setParam(const Params& params) {
if (_params) {
for (auto& p : (*_params)) {
if (!p)
continue;
if (!p) continue;
p->weak_buf.reset();
}
}
initBgColor();
for (auto& p : (*params)) {
if (!p)
continue;
if (!p) continue;
p->weak_buf = _buffer;
if (auto chn = p->weak_chn.lock()) {
chn->addParam(p);
@ -309,14 +258,14 @@ void VideoStack::setParam(const Params& params)
_params = params;
}
void VideoStack::start()
{
void VideoStack::start() {
_thread = std::thread([&]() {
uint64_t pts = 0;
int frameInterval = 1000 / _fps;
auto lastEncTP = std::chrono::steady_clock::now();
while (!_isExit) {
if (std::chrono::steady_clock::now() - lastEncTP > std::chrono::milliseconds(frameInterval)) {
if (std::chrono::steady_clock::now() - lastEncTP >
std::chrono::milliseconds(frameInterval)) {
lastEncTP = std::chrono::steady_clock::now();
_dev->inputYUV((char**)_buffer->get()->data, _buffer->get()->linesize, pts);
@ -326,9 +275,8 @@ void VideoStack::start()
});
}
void VideoStack::initBgColor()
{
//填充底色
void VideoStack::initBgColor() {
// 填充底色
auto R = 20;
auto G = 20;
auto B = 20;
@ -342,27 +290,19 @@ void VideoStack::initBgColor()
memset(_buffer->get()->data[2], V, _buffer->get()->linesize[2] * _height / 2);
}
Channel::Ptr VideoStackManager::getChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt)
{
Channel::Ptr VideoStackManager::getChannel(const std::string& id, int width, int height,
AVPixelFormat pixfmt) {
std::lock_guard<std::recursive_mutex> lock(_mx);
auto key = id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt);
auto it = _channelMap.find(key);
if (it != _channelMap.end()) {
return it->second->acquire();
}
if (it != _channelMap.end()) { return it->second->acquire(); }
return createChannel(id, width, height, pixfmt);
}
void VideoStackManager::unrefChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt)
{
void VideoStackManager::unrefChannel(const std::string& id, int width, int height,
AVPixelFormat pixfmt) {
std::lock_guard<std::recursive_mutex> lock(_mx);
auto key = id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt);
@ -377,8 +317,7 @@ void VideoStackManager::unrefChannel(const std::string& id,
}
}
int VideoStackManager::startVideoStack(const Json::Value& json)
{
int VideoStackManager::startVideoStack(const Json::Value& json) {
std::string id;
int width, height;
@ -392,8 +331,7 @@ int VideoStackManager::startVideoStack(const Json::Value& json)
auto stack = std::make_shared<VideoStack>(id, width, height);
for (auto& p : (*params)) {
if (!p)
continue;
if (!p) continue;
p->weak_chn = getChannel(p->id, p->width, p->height, p->pixfmt);
}
@ -405,13 +343,13 @@ int VideoStackManager::startVideoStack(const Json::Value& json)
return 0;
}
int VideoStackManager::resetVideoStack(const Json::Value& json)
{
int VideoStackManager::resetVideoStack(const Json::Value& json) {
std::string id;
int width, height;
auto params = parseParams(json, id, width, height);
if (!params) {
ErrorL << "Videostack parse params failed!";
return -1;
}
@ -419,15 +357,12 @@ int VideoStackManager::resetVideoStack(const Json::Value& json)
{
std::lock_guard<std::recursive_mutex> lock(_mx);
auto it = _stackMap.find(id);
if (it == _stackMap.end()) {
return -2;
}
if (it == _stackMap.end()) { return -2; }
stack = it->second;
}
for (auto& p : (*params)) {
if (!p)
continue;
if (!p) continue;
p->weak_chn = getChannel(p->id, p->width, p->height, p->pixfmt);
}
@ -435,8 +370,7 @@ int VideoStackManager::resetVideoStack(const Json::Value& json)
return 0;
}
int VideoStackManager::stopVideoStack(const std::string& id)
{
int VideoStackManager::stopVideoStack(const std::string& id) {
std::lock_guard<std::recursive_mutex> lock(_mx);
auto it = _stackMap.find(id);
if (it != _stackMap.end()) {
@ -447,93 +381,90 @@ int VideoStackManager::stopVideoStack(const std::string& id)
return -1;
}
mediakit::FFmpegFrame::Ptr VideoStackManager::getBgImg()
{
return _bgImg;
}
mediakit::FFmpegFrame::Ptr VideoStackManager::getBgImg() { return _bgImg; }
Params VideoStackManager::parseParams(const Json::Value& json,
std::string& id,
int& width,
int& height)
{
try {
id = json["id"].asString();
width = json["width"].asInt();
height = json["height"].asInt();
int rows = json["row"].asInt(); //堆叠行数
int cols = json["col"].asInt(); //堆叠列数
float gapv = json["gapv"].asFloat(); //垂直间距
float gaph = json["gaph"].asFloat(); //水平间距
//单个间距
int gaphPix = static_cast<int>(round(width * gaph));
int gapvPix = static_cast<int>(round(height * gapv));
// 根据间距计算格子宽高
int gridWidth = cols > 1 ? (width - gaphPix * (cols - 1)) / cols : width;
int gridHeight = rows > 1 ? (height - gapvPix * (rows - 1)) / rows : height;
auto params = std::make_shared<std::vector<Param::Ptr>>(rows * cols);
for (int row = 0; row < rows; row++) {
for (int col = 0; col < cols; col++) {
std::string url = json["url"][row][col].asString();
auto param = std::make_shared<Param>();
param->posX = gridWidth * col + col * gaphPix;
param->posY = gridHeight * row + row * gapvPix;
param->width = gridWidth;
param->height = gridHeight;
param->id = url;
(*params)[row * cols + col] = param;
}
}
//判断是否需要合并格子 （焦点屏）
if (!json["span"].empty() && json.isMember("span")) {
for (const auto& subArray : json["span"]) {
if (!subArray.isArray() || subArray.size() != 2) {
throw Json::LogicError("Incorrect 'span' sub-array format in JSON");
}
std::array<int, 4> mergePos;
int index = 0;
for (const auto& innerArray : subArray) {
if (!innerArray.isArray() || innerArray.size() != 2) {
throw Json::LogicError("Incorrect 'span' inner-array format in JSON");
}
for (const auto& number : innerArray) {
if (index < mergePos.size()) {
mergePos[index++] = number.asInt();
}
}
}
for (int i = mergePos[0]; i <= mergePos[2]; i++) {
for (int j = mergePos[1]; j <= mergePos[3]; j++) {
if (i == mergePos[0] && j == mergePos[1]) {
(*params)[i * cols + j]->width = (mergePos[3] - mergePos[1] + 1) * gridWidth + (mergePos[3] - mergePos[1]) * gapvPix;
(*params)[i * cols + j]->height = (mergePos[2] - mergePos[0] + 1) * gridHeight + (mergePos[2] - mergePos[0]) * gaphPix;
} else {
(*params)[i * cols + j] = nullptr;
}
}
}
}
}
return params;
} catch (const std::exception& e) {
ErrorL << "Videostack parse params failed! " << e.what();
return nullptr;
template<typename T> T getJsonValue(const Json::Value& json, const std::string& key) {
if (!json.isMember(key)) {
throw Json::LogicError("VideoStack parseParams missing required field: " + key);
}
return json[key].as<T>();
}
bool VideoStackManager::loadBgImg(const std::string& path)
{
Params VideoStackManager::parseParams(const Json::Value& json, std::string& id, int& width,
int& height) {
id = getJsonValue<std::string>(json, "id");
width = getJsonValue<int>(json, "width");
height = getJsonValue<int>(json, "height");
int rows = getJsonValue<int>(json, "row");// 行数
int cols = getJsonValue<int>(json, "col");// 列数
float gapv = json["gapv"].asFloat();// 垂直间距
float gaph = json["gaph"].asFloat();// 水平间距
// 单个间距
int gaphPix = static_cast<int>(round(width * gaph));
int gapvPix = static_cast<int>(round(height * gapv));
// 根据间距计算格子宽高
int gridWidth = cols > 1 ? (width - gaphPix * (cols - 1)) / cols : width;
int gridHeight = rows > 1 ? (height - gapvPix * (rows - 1)) / rows : height;
auto params = std::make_shared<std::vector<Param::Ptr>>(rows * cols);
for (int row = 0; row < rows; row++) {
for (int col = 0; col < cols; col++) {
std::string url = json["url"][row][col].asString();
auto param = std::make_shared<Param>();
param->posX = gridWidth * col + col * gaphPix;
param->posY = gridHeight * row + row * gapvPix;
param->width = gridWidth;
param->height = gridHeight;
param->id = url;
(*params)[row * cols + col] = param;
}
}
// 判断是否需要合并格子 （焦点屏）
if (json.isMember("span") && json["span"].isArray() && json["span"].size() > 0) {
for (const auto& subArray : json["span"]) {
if (!subArray.isArray() || subArray.size() != 2) {
throw Json::LogicError("Incorrect 'span' sub-array format in JSON");
}
std::array<int, 4> mergePos;
unsigned int index = 0;
for (const auto& innerArray : subArray) {
if (!innerArray.isArray() || innerArray.size() != 2) {
throw Json::LogicError("Incorrect 'span' inner-array format in JSON");
}
for (const auto& number : innerArray) {
if (index < mergePos.size()) { mergePos[index++] = number.asInt(); }
}
}
for (int i = mergePos[0]; i <= mergePos[2]; i++) {
for (int j = mergePos[1]; j <= mergePos[3]; j++) {
if (i == mergePos[0] && j == mergePos[1]) {
(*params)[i * cols + j]->width =
(mergePos[3] - mergePos[1] + 1) * gridWidth +
(mergePos[3] - mergePos[1]) * gapvPix;
(*params)[i * cols + j]->height =
(mergePos[2] - mergePos[0] + 1) * gridHeight +
(mergePos[2] - mergePos[0]) * gaphPix;
} else {
(*params)[i * cols + j] = nullptr;
}
}
}
}
}
return params;
}
bool VideoStackManager::loadBgImg(const std::string& path) {
_bgImg = std::make_shared<mediakit::FFmpegFrame>();
_bgImg->get()->width = 1280;
@ -543,21 +474,21 @@ bool VideoStackManager::loadBgImg(const std::string& path)
av_frame_get_buffer(_bgImg->get(), 32);
std::ifstream file(path, std::ios::binary);
if (!file.is_open()) {
return false;
}
if (!file.is_open()) { return false; }
file.read((char*)_bgImg->get()->data[0], _bgImg->get()->linesize[0] * _bgImg->get()->height); // Y
file.read((char*)_bgImg->get()->data[1], _bgImg->get()->linesize[1] * _bgImg->get()->height / 2); // U
file.read((char*)_bgImg->get()->data[2], _bgImg->get()->linesize[2] * _bgImg->get()->height / 2); // V
file.read((char*)_bgImg->get()->data[0],
_bgImg->get()->linesize[0] * _bgImg->get()->height);// Y
file.read((char*)_bgImg->get()->data[1],
_bgImg->get()->linesize[1] * _bgImg->get()->height / 2);// U
file.read((char*)_bgImg->get()->data[2],
_bgImg->get()->linesize[2] * _bgImg->get()->height / 2);// V
return true;
}
Channel::Ptr VideoStackManager::createChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt)
{
void VideoStackManager::clear() { _stackMap.clear(); }
Channel::Ptr VideoStackManager::createChannel(const std::string& id, int width, int height,
AVPixelFormat pixfmt) {
std::lock_guard<std::recursive_mutex> lock(_mx);
StackPlayer::Ptr player;
@ -568,24 +499,24 @@ Channel::Ptr VideoStackManager::createChannel(const std::string& id,
player = createPlayer(id);
}
auto refChn = std::make_shared<RefWrapper<Channel::Ptr>>(std::make_shared<Channel>(id, width, height, pixfmt));
auto refChn = std::make_shared<RefWrapper<Channel::Ptr>>(
std::make_shared<Channel>(id, width, height, pixfmt));
auto chn = refChn->acquire();
player->addChannel(chn);
_channelMap[id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt)] = refChn;
_channelMap[id + std::to_string(width) + std::to_string(height) + std::to_string(pixfmt)] =
refChn;
return chn;
}
StackPlayer::Ptr VideoStackManager::createPlayer(const std::string& id)
{
StackPlayer::Ptr VideoStackManager::createPlayer(const std::string& id) {
std::lock_guard<std::recursive_mutex> lock(_mx);
auto refPlayer = std::make_shared<RefWrapper<StackPlayer::Ptr>>(std::make_shared<StackPlayer>(id));
auto refPlayer =
std::make_shared<RefWrapper<StackPlayer::Ptr>>(std::make_shared<StackPlayer>(id));
_playerMap[id] = refPlayer;
auto player = refPlayer->acquire();
if (!id.empty()) {
player->play();
}
if (!id.empty()) { player->play(); }
return player;
}

104
server/VideoStack.h
View File

@ -5,29 +5,23 @@
#include "Player/MediaPlayer.h"
#include "json/json.h"
#include <mutex>
template <typename T>
class RefWrapper {
public:
template<typename T> class RefWrapper {
public:
using Ptr = std::shared_ptr<RefWrapper<T>>;
template <typename... Args>
explicit RefWrapper(Args&&... args)
: _rc(0)
, _entity(std::forward<Args>(args)...)
{
}
template<typename... Args>
explicit RefWrapper(Args&&... args) : _rc(0), _entity(std::forward<Args>(args)...) {}
T acquire()
{
T acquire() {
++_rc;
return _entity;
}
bool dispose() { return --_rc <= 0; }
private:
T _entity;
private:
std::atomic<int> _rc;
T _entity;
};
class Channel;
@ -40,7 +34,7 @@ struct Param {
int width = 0;
int height = 0;
AVPixelFormat pixfmt = AV_PIX_FMT_YUV420P;
std::string id {};
std::string id{};
// runtime
std::weak_ptr<Channel> weak_chn;
@ -52,7 +46,7 @@ struct Param {
using Params = std::shared_ptr<std::vector<Param::Ptr>>;
class Channel : public std::enable_shared_from_this<Channel> {
public:
public:
using Ptr = std::shared_ptr<Channel>;
Channel(const std::string& id, int width, int height, AVPixelFormat pixfmt);
@ -63,12 +57,12 @@ class Channel : public std::enable_shared_from_this<Channel> {
void fillBuffer(const Param::Ptr& p);
protected:
protected:
void forEachParam(const std::function<void(const Param::Ptr&)>& func);
void copyData(const mediakit::FFmpegFrame::Ptr& buf, const Param::Ptr& p);
private:
private:
std::string _id;
int _width;
int _height;
@ -84,13 +78,10 @@ class Channel : public std::enable_shared_from_this<Channel> {
};
class StackPlayer : public std::enable_shared_from_this<StackPlayer> {
public:
public:
using Ptr = std::shared_ptr<StackPlayer>;
StackPlayer(const std::string& url)
: _url(url)
{
}
StackPlayer(const std::string& url) : _url(url) {}
void addChannel(const std::weak_ptr<Channel>& chn);
@ -100,14 +91,14 @@ class StackPlayer : public std::enable_shared_from_this<StackPlayer> {
void onDisconnect();
protected:
protected:
void rePlay(const std::string& url);
private:
private:
std::string _url;
mediakit::MediaPlayer::Ptr _player;
//用于断线重连
// 用于断线重连
toolkit::Timer::Ptr _timer;
int _failedCount = 0;
@ -116,15 +107,12 @@ class StackPlayer : public std::enable_shared_from_this<StackPlayer> {
};
class VideoStack {
public:
public:
using Ptr = std::shared_ptr<VideoStack>;
VideoStack(const std::string& url,
int width = 1920,
int height = 1080,
AVPixelFormat pixfmt = AV_PIX_FMT_YUV420P,
float fps = 25.0,
int bitRate = 2 * 1024 * 1024);
VideoStack(const std::string& url, int width = 1920, int height = 1080,
AVPixelFormat pixfmt = AV_PIX_FMT_YUV420P, float fps = 25.0,
int bitRate = 2 * 1024 * 1024);
~VideoStack();
@ -132,15 +120,15 @@ class VideoStack {
void start();
protected:
protected:
void initBgColor();
public:
public:
Params _params;
mediakit::FFmpegFrame::Ptr _buffer;
private:
private:
std::string _id;
int _width;
int _height;
@ -156,47 +144,41 @@ class VideoStack {
};
class VideoStackManager {
public:
static VideoStackManager& Instance();
Channel::Ptr getChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt);
void unrefChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt);
public:
// 创建拼接流
int startVideoStack(const Json::Value& json);
// 停止拼接流
int stopVideoStack(const std::string& id);
// 可以在不断流的情况下，修改拼接流的配置(实现切换拼接屏内容)
int resetVideoStack(const Json::Value& json);
int stopVideoStack(const std::string& id);
public:
static VideoStackManager& Instance();
Channel::Ptr getChannel(const std::string& id, int width, int height, AVPixelFormat pixfmt);
void unrefChannel(const std::string& id, int width, int height, AVPixelFormat pixfmt);
bool loadBgImg(const std::string& path);
void clear();
mediakit::FFmpegFrame::Ptr getBgImg();
protected:
Params parseParams(const Json::Value& json,
std::string& id,
int& width,
int& height);
protected:
Params parseParams(const Json::Value& json, std::string& id, int& width, int& height);
protected:
Channel::Ptr createChannel(const std::string& id,
int width,
int height,
AVPixelFormat pixfmt);
protected:
Channel::Ptr createChannel(const std::string& id, int width, int height, AVPixelFormat pixfmt);
StackPlayer::Ptr createPlayer(const std::string& id);
private:
private:
mediakit::FFmpegFrame::Ptr _bgImg;
private:
private:
std::recursive_mutex _mx;
std::unordered_map<std::string, VideoStack::Ptr> _stackMap;

30
server/WebApi.cpp
View File

@ -8,6 +8,7 @@
* may be found in the AUTHORS file in the root of the source tree.
*/
#include <exception>
#include <sys/stat.h>
#include <math.h>
#include <signal.h>
@ -1950,9 +1951,29 @@ void installWebApi() {
api_regist("/index/api/stack/start", [](API_ARGS_JSON_ASYNC) {
CHECK_SECRET();
auto ret = VideoStackManager::Instance().startVideoStack(allArgs.args);
val["code"] = ret;
val["msg"] = ret ? "failed" : "success";
int ret = 0;
try {
ret = VideoStackManager::Instance().startVideoStack(allArgs.args);
val["code"] = ret;
val["msg"] = ret ? "failed" : "success";
} catch (const std::exception &e) {
val["code"] = -1;
val["msg"] = e.what();
}
invoker(200, headerOut, val.toStyledString());
});
api_regist("/index/api/stack/reset", [](API_ARGS_JSON_ASYNC) {
CHECK_SECRET();
int ret = 0;
try {
auto ret = VideoStackManager::Instance().resetVideoStack(allArgs.args);
val["code"] = ret;
val["msg"] = ret ? "failed" : "success";
} catch (const std::exception &e) {
val["code"] = -1;
val["msg"] = e.what();
}
invoker(200, headerOut, val.toStyledString());
});
@ -1974,6 +1995,9 @@ void unInstallWebApi(){
#if defined(ENABLE_RTPPROXY)
s_rtp_server.clear();
#endif
#if defined(ENABLE_VIDEOSTACK) && defined(ENABLE_FFMPEG) && defined(ENABLE_X264)
VideoStackManager::Instance().clear();
#endif
NoticeCenter::Instance().delListener(&web_api_tag);
}