lsnes/generic/avsnoop.hpp
2011-11-05 00:37:32 +02:00

254 lines
6.8 KiB
C++

#ifndef _avsnoop__hpp__included__
#define _avsnoop__hpp__included__
#include "render.hpp"
#include <list>
#include <string>
#include <set>
#include <stdexcept>
/**
* Video data region is NTSC.
*/
#define SNOOP_REGION_NTSC 0
/**
* Video data region is PAL.
*/
#define SNOOP_REGION_PAL 1
/**
* Information about run.
*/
struct gameinfo_struct
{
public:
/**
* Construct game info.
*/
gameinfo_struct() throw(std::bad_alloc);
/**
* Game name.
*/
std::string gamename;
/**
* Run length in seconds.
*/
double length;
/**
* Rerecord count (base 10 ASCII)
*/
std::string rerecords;
/**
* Authors. The first components are real names, the second components are nicknames. Either (but not both) may be
* blank.
*/
std::vector<std::pair<std::string, std::string>> authors;
/**
* Format human-redable representation of the length.
*
* Parameter digits: Number of sub-second digits to use.
* Returns: The time formated.
* Throws std::bad_alloc: Not enough memory.
*/
std::string get_readable_time(unsigned digits) const throw(std::bad_alloc);
/**
* Get number of authors.
*
* Returns: Number of authors.
*/
size_t get_author_count() const throw();
/**
* Get short name of author (nickname if present, otherwise full name).
*
* Parameter idx: Index of author (0-based).
* Returns: The short name.
* Throws std::bad_alloc: Not enough memory.
*/
std::string get_author_short(size_t idx) const throw(std::bad_alloc);
/**
* Get rerecord count as a number. If rerecord count is too high, returns the maximum representatible count.
*
* Returns: The rerecord count.
*/
uint64_t get_rerecords() const throw();
};
/**
* A/V snooper. A/V snoopers allow code to snoop on audio samples and video frames, usually for purpose of dumping
* them to video file.
*/
class av_snooper
{
public:
/**
* Create new A/V snooper, registering it for receiving callbacks.
*
* Parameter name: Name of the dumper.
*
* Throws std::bad_alloc: Not enough memory.
*/
av_snooper(const std::string& name) throw(std::bad_alloc);
/**
* Destroy A/V snooper, deregistering it. This will not call end() method.
*/
~av_snooper() throw();
/**
* Dump a frame.
*
* Parameter _frame: The frame to dump.
* Parameter fps_n: Current fps numerator.
* Parameter fps_d: Current fps denomerator.
* Parameter raw: Raw frame data from bsnes.
* Parameter hires: True if bsnes signals hires mode, false otherwise.
* Parameter interlaced: True if bsnes signals interlaced mode, false otherwise.
* Parameter overscan: True if bsnes signals overscan mode, false otherwise.
* Parameter region: The region video data is for.
* throws std::bad_alloc: Not enough memory.
* throws std::runtime_error: Error dumping frame.
*/
virtual void frame(struct lcscreen& _frame, uint32_t fps_n, uint32_t fps_d, const uint32_t* raw, bool hires,
bool interlaced, bool overscan, unsigned region) throw(std::bad_alloc, std::runtime_error);
/**
* Call frame() on all known A/V snoopers.
*
* Parameter _frame: The frame to dump.
* Parameter fps_n: Current fps numerator.
* Parameter fps_d: Current fps denomerator.
* Parameter raw: Raw frame data from bsnes.
* Parameter hires: True if bsnes signals hires mode, false otherwise.
* Parameter interlaced: True if bsnes signals interlaced mode, false otherwise.
* Parameter overscan: True if bsnes signals overscan mode, false otherwise.
* Parameter region: The region video data is for.
* throws std::bad_alloc: Not enough memory.
*/
static void _frame(struct lcscreen& _frame, uint32_t fps_n, uint32_t fps_d, const uint32_t* raw, bool hires,
bool interlaced, bool overscan, unsigned region) throw(std::bad_alloc);
/**
* Dump a sample.
*
* parameter l: Left channel sample.
* parameter r: Right channel sample.
* throws std::bad_alloc: Not enough memory.
* throws std::runtime_error: Error dumping sample.
*/
virtual void sample(short l, short r) throw(std::bad_alloc, std::runtime_error);
/**
* Call sample() on all known A/V snoopers.
*
* parameter l: Left channel sample.
* parameter r: Right channel sample.
* throws std::bad_alloc: Not enough memory.
*/
static void _sample(short l, short r) throw(std::bad_alloc);
/**
* End dump.
*
* throws std::bad_alloc: Not enough memory.
* throws std::runtime_error: Error dumping sample.
*/
virtual void end() throw(std::bad_alloc, std::runtime_error);
/**
* Call end() on all known A/V snoopers.
*
* throws std::bad_alloc: Not enough memory.
*/
static void _end() throw(std::bad_alloc);
/**
* Set sound sampling rate.
*
* parameter rate_n: Numerator of sampling rate.
* parameter rate_d: Denomerator of sampling rate.
*/
virtual void sound_rate(uint32_t rate_n, uint32_t rate_d) throw(std::bad_alloc, std::runtime_error);
/**
* Call set_sound_rate() on all known A/V snoopers (and record the rate).
*
* parameter rate_n: Numerator of sampling rate.
* parameter rate_d: Denomerator of sampling rate.
*/
static void _sound_rate(uint32_t rate_n, uint32_t rate_d);
/**
* Get the sound rate most recently set by _set_sound_rate().
*
* Returns: The first component is numerator of the sampling rate, the second component is the denomerator.
*/
std::pair<uint32_t, uint32_t> get_sound_rate() throw();
/**
* Notify game information.
*
* parameter gi: The information. Not guaranteed to remain stable after the call.
* throws std::bad_alloc: Not enough memory.
* throws std::runtime_error: Error recording this info.
*/
virtual void gameinfo(const struct gameinfo_struct& gi) throw(std::bad_alloc, std::runtime_error);
/**
* Call gameinfo() on all known A/V snoopers. Also records the gameinfo.
*
* parameter gi: The information. Not guaranteed to remain stable after the call.
* throws std::bad_alloc Not enough memory.
*/
static void _gameinfo(const struct gameinfo_struct& gi) throw(std::bad_alloc);
/**
* Get the last recorded game information.
*
* Returns: The last recorded gameinfo.
*/
const struct gameinfo_struct& get_gameinfo() throw(std::bad_alloc);
/**
* Is there at least one known A/V snooper?
*
* returns: True if there is at least one known A/V snooper, false if there are none.
*/
static bool dump_in_progress() throw();
/**
* Get the names of the active dumpers.
*/
static const std::set<std::string>& active_dumpers();
/**
* Notifier for dumps starting/ending.
*/
class dump_notification
{
public:
/**
* Register dump notifier.
*
* Throws std::bad_alloc: Not enough memory.
*/
dump_notification() throw(std::bad_alloc);
/**
* Destructor. Deregister notifier.
*/
virtual ~dump_notification() throw();
/**
* Called on new dump starting.
*
* Parameter type: The type of new dumper.
*/
virtual void dump_starting(const std::string& type) throw();
/**
* Called on dump ending.
*
* Parameter type: The type of dumper going away.
*/
virtual void dump_ending(const std::string& type) throw();
};
private:
std::string s_name;
};
#endif