96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
#pragma once
|
|
#include "player.h"
|
|
#include <array>
|
|
#include <atomic>
|
|
#include <condition_variable>
|
|
#include <deque>
|
|
#include <functional>
|
|
#include <mutex>
|
|
#include <string>
|
|
#include <map>
|
|
#include <memory>
|
|
#include <set>
|
|
#include <sys/types.h>
|
|
#include <string_view>
|
|
#include <thread>
|
|
|
|
namespace playback {
|
|
// The decoder owns media/snapshot methods; the writer owns the file after construction.
|
|
class ProgressReporter {
|
|
public:
|
|
explicit ProgressReporter(const std::string &path, std::function<double()> clock = {});
|
|
~ProgressReporter();
|
|
ProgressReporter(const ProgressReporter &) = delete;
|
|
ProgressReporter &operator=(const ProgressReporter &) = delete;
|
|
|
|
static bool validMediaURL(std::string_view url) noexcept;
|
|
static bool validMediaIdentity(std::string_view identity) noexcept;
|
|
void begin(const std::string &mediaURL, bool live = false) noexcept;
|
|
void observe(const PlayerState &state) noexcept;
|
|
void closeMedia() noexcept;
|
|
// Call after the decoder joins; drains queued records and joins the writer.
|
|
void finish() noexcept;
|
|
// Reopen only this session's original private inode, never an arbitrary existing file.
|
|
void resume();
|
|
std::string error() const;
|
|
|
|
private:
|
|
struct Snapshot {
|
|
double position = 0;
|
|
double duration = 0;
|
|
PlayerStatus status = PLAYER_EMPTY;
|
|
bool eligible = false;
|
|
} snapshot;
|
|
std::string mediaURL;
|
|
std::string path;
|
|
dev_t device = 0;
|
|
ino_t inode = 0;
|
|
std::function<double()> clock;
|
|
bool live = false;
|
|
bool hasSnapshot = false;
|
|
bool awaitingReady = false;
|
|
bool seekPending = false;
|
|
bool thresholdReported = false;
|
|
bool finished = false;
|
|
double lastRecordAt = 0;
|
|
|
|
int descriptor = -1;
|
|
std::thread writer;
|
|
mutable std::mutex mutex;
|
|
std::condition_variable wake;
|
|
std::deque<std::string> records;
|
|
std::array<char, 512> failure{};
|
|
std::atomic<bool> disabled{false};
|
|
bool stopping = false;
|
|
|
|
bool emit(const char *event) noexcept;
|
|
void disable(const char *message, int osError = 0) noexcept;
|
|
void writeRecords() noexcept;
|
|
};
|
|
|
|
// Routes decoder-owned snapshots by immutable media identity; only the active writer runs.
|
|
class ProgressReports {
|
|
public:
|
|
explicit ProgressReports(const std::string &path);
|
|
ProgressReports() = default;
|
|
void setSingleFile(const std::string &path);
|
|
void registerFile(const std::string &identity, const std::string &path);
|
|
void registerFiles(const char *const *identities, const char *const *paths, int count);
|
|
void begin(const std::string &identity, bool live = false) noexcept;
|
|
void observe(const PlayerState &state) noexcept;
|
|
void closeMedia() noexcept;
|
|
void finish() noexcept;
|
|
std::string error() const;
|
|
private:
|
|
struct Entry { std::string path; std::unique_ptr<ProgressReporter> reporter; };
|
|
std::unique_ptr<ProgressReporter> single;
|
|
std::string singlePath;
|
|
std::string singleIdentity;
|
|
std::map<std::string, Entry> entries;
|
|
std::set<std::string> paths;
|
|
ProgressReporter *active = nullptr;
|
|
mutable std::mutex mutex;
|
|
std::string failure;
|
|
};
|
|
}
|