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Add option to reduce video matching latency

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This commit is contained in:
WarmUpTill
2022-09-10 16:48:01 +02:00
committed by WarmUpTill
parent b2585ae176
commit 75cdd3c80d
6 changed files with 78 additions and 8 deletions
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25
src/utils/screenshot-helper.cpp
View File

@@ -1,16 +1,35 @@
#include "screenshot-helper.hpp"
#include "advanced-scene-switcher.hpp"
#include <chrono>
static void ScreenshotTick(void *param, float);
ScreenshotHelper::ScreenshotHelper(obs_source_t *source, bool saveToFile,
ScreenshotHelper::ScreenshotHelper(obs_source_t *source, bool blocking,
int timeout, bool saveToFile,
std::string path)
: weakSource(OBSGetWeakRef(source)),
_blocking(blocking),
_saveToFile(saveToFile),
_path(path)
{
std::unique_lock<std::mutex> lock(_mutex);
_initDone = true;
obs_add_tick_callback(ScreenshotTick, this);
if (_blocking) {
auto res =
_cv.wait_for(lock, std::chrono::milliseconds(timeout));
if (res == std::cv_status::timeout) {
if (source) {
blog(LOG_WARNING,
"Failed to get screenshot in time for source %s",
obs_source_get_name(source));
} else {
blog(LOG_WARNING,
"Failed to get screenshot in time");
}
}
}
}
ScreenshotHelper::~ScreenshotHelper()
@@ -104,6 +123,8 @@ void ScreenshotHelper::MarkDone()
{
time = std::chrono::high_resolution_clock::now();
done = true;
std::unique_lock<std::mutex> lock(_mutex);
_cv.notify_all();
}
void ScreenshotHelper::WriteToFile()
@@ -148,8 +169,8 @@ static void ScreenshotTick(void *param, float)
break;
case STAGE_COPY_AND_SAVE:
data->Copy();
data->MarkDone();
data->WriteToFile();
data->MarkDone();
obs_remove_tick_callback(ScreenshotTick, data);
break;

8
src/utils/screenshot-helper.hpp
View File

@@ -4,11 +4,14 @@
#include <QImage>
#include <chrono>
#include <thread>
#include <mutex>
#include <condition_variable>
class ScreenshotHelper {
public:
ScreenshotHelper() = default;
ScreenshotHelper(obs_source_t *source, bool saveToFile = false,
ScreenshotHelper(obs_source_t *source, bool blocking = false,
int timeout = 1000, bool saveToFile = false,
std::string path = "");
ScreenshotHelper &operator=(const ScreenshotHelper &) = delete;
ScreenshotHelper(const ScreenshotHelper &) = delete;
@@ -34,7 +37,10 @@ public:
private:
bool _initDone = false;
bool _blocking = false;
std::thread _saveThread;
bool _saveToFile = false;
std::string _path = "";
std::mutex _mutex;
std::condition_variable _cv;
};