X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.h;h=02cc742aa52f62a8fac1a467d1c7a44b310f8625;hb=47f25009bcbc765e397bcb471dd361a511c99daf;hp=ed13cd43cba51bf95f2cad930381bf81f24d7d5a;hpb=9b0d04f34424c9aeddaf07007838f2c8c0113093;p=dcpomatic.git diff --git a/src/lib/util.h b/src/lib/util.h index ed13cd43c..02cc742aa 100644 --- a/src/lib/util.h +++ b/src/lib/util.h @@ -22,163 +22,192 @@ * @brief Some utility functions and classes. */ -#ifndef DVDOMATIC_UTIL_H -#define DVDOMATIC_UTIL_H +#ifndef DCPOMATIC_UTIL_H +#define DCPOMATIC_UTIL_H #include #include #include #include +#include +#include +#include extern "C" { #include #include } #include "compose.hpp" +#include "types.h" -#ifdef DVDOMATIC_DEBUG -#define TIMING(...) _log->microsecond_log (String::compose (__VA_ARGS__), Log::TIMING); +#ifdef DCPOMATIC_DEBUG +#define TIMING(...) _film->log()->microsecond_log (String::compose (__VA_ARGS__), Log::TIMING); #else #define TIMING(...) #endif +/** The maximum number of audio channels that we can cope with */ +#define MAX_AUDIO_CHANNELS 6 + class Scaler; extern std::string seconds_to_hms (int); extern std::string seconds_to_approximate_hms (int); extern void stacktrace (std::ostream &, int); -extern std::string audio_sample_format_to_string (AVSampleFormat); -extern AVSampleFormat audio_sample_format_from_string (std::string); extern std::string dependency_version_summary (); extern double seconds (struct timeval); -extern void dvdomatic_setup (); +extern void dcpomatic_setup (); +extern void dcpomatic_setup_i18n (std::string); extern std::vector split_at_spaces_considering_quotes (std::string); -extern std::string md5_digest (std::string); +extern std::string md5_digest (boost::filesystem::path); extern std::string md5_digest (void const *, int); +extern void ensure_ui_thread (); +extern std::string audio_channel_name (int); +#ifdef DCPOMATIC_WINDOWS +extern boost::filesystem::path mo_path (); +#endif -enum ContentType { - STILL, - VIDEO -}; - -/** @class Size - * @brief Representation of the size of something */ -struct Size +struct FrameRateConversion { - /** Construct a zero Size */ - Size () - : width (0) - , height (0) - {} - - /** @param w Width. - * @param h Height. + FrameRateConversion (float, int); + + /** @return factor by which to multiply a source frame rate + to get the effective rate after any skip or repeat has happened. + */ + float factor () const { + if (skip) { + return 0.5; + } else if (repeat) { + return 2; + } + + return 1; + } + + /** true to skip every other frame */ + bool skip; + /** true to repeat every frame once */ + bool repeat; + /** true if this DCP will run its video faster or slower than the source + * without taking into account `repeat' nor `skip'. + * (e.g. change_speed will be true if + * source is 29.97fps, DCP is 30fps + * source is 14.50fps, DCP is 30fps + * but not if + * source is 15.00fps, DCP is 30fps + * source is 12.50fps, DCP is 25fps) */ - Size (int w, int h) - : width (w) - , height (h) - {} - - /** width */ - int width; - /** height */ - int height; -}; + bool change_speed; -/** A description of the crop of an image or video. */ -struct Crop -{ - Crop () : left (0), right (0), top (0), bottom (0) {} - - /** Number of pixels to remove from the left-hand side */ - int left; - /** Number of pixels to remove from the right-hand side */ - int right; - /** Number of pixels to remove from the top */ - int top; - /** Number of pixels to remove from the bottom */ - int bottom; + std::string description; }; -extern bool operator== (Crop const & a, Crop const & b); -extern bool operator!= (Crop const & a, Crop const & b); +int best_dcp_frame_rate (float); -/** A position */ -struct Position -{ - Position () - : x (0) - , y (0) - {} - - Position (int x_, int y_) - : x (x_) - , y (y_) - {} - - /** x coordinate */ - int x; - /** y coordinate */ - int y; -}; - -extern std::string crop_string (Position, Size); +extern std::string crop_string (Position, libdcp::Size); extern int dcp_audio_sample_rate (int); extern std::string colour_lut_index_to_name (int index); +extern int stride_round_up (int, int const *, int); +extern int stride_lookup (int c, int const * stride); +extern std::multimap read_key_value (std::istream& s); +extern int get_required_int (std::multimap const & kv, std::string k); +extern float get_required_float (std::multimap const & kv, std::string k); +extern std::string get_required_string (std::multimap const & kv, std::string k); +extern int get_optional_int (std::multimap const & kv, std::string k); +extern std::string get_optional_string (std::multimap const & kv, std::string k); /** @class Socket * @brief A class to wrap a boost::asio::ip::tcp::socket with some things - * that are useful for DVD-o-matic. + * that are useful for DCP-o-matic. * * This class wraps some things that I could not work out how to do with boost; - * most notably, sync read/write calls with timeouts, and the ability to peak into - * data being read. + * most notably, sync read/write calls with timeouts. */ class Socket { public: - Socket (); + Socket (int timeout = 30); /** @return Our underlying socket */ boost::asio::ip::tcp::socket& socket () { return _socket; } - void connect (boost::asio::ip::basic_resolver_entry const & endpoint, int timeout); - void write (uint8_t const * data, int size, int timeout); + void connect (boost::asio::ip::basic_resolver_entry const & endpoint); + + void write (uint32_t n); + void write (uint8_t const * data, int size); - void read_definite_and_consume (uint8_t* data, int size, int timeout); - void read_indefinite (uint8_t* data, int size, int timeout); - void consume (int amount); + void read (uint8_t* data, int size); + uint32_t read_uint32 (); private: void check (); - int read (uint8_t* data, int size, int timeout); Socket (Socket const &); boost::asio::io_service _io_service; boost::asio::deadline_timer _deadline; boost::asio::ip::tcp::socket _socket; - /** a buffer for small reads */ - uint8_t _buffer[256]; - /** amount of valid data in the buffer */ - int _buffer_data; + int _timeout; }; -#define SCALEBITS 10 -#define ONE_HALF (1 << (SCALEBITS - 1)) -#define FIX(x) ((int) ((x) * (1<> SCALEBITS) + void set_frames (int f); -#define RGB_TO_U_CCIR(r1, g1, b1, shift)\ -(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \ - FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) + void make_silent (); + void make_silent (int c); + + void copy_from (AudioBuffers* from, int frames_to_copy, int read_offset, int write_offset); + void move (int from, int to, int frames); + void accumulate (boost::shared_ptr, int, int); + +private: + /** Number of channels */ + int _channels; + /** Number of frames (where a frame is one sample across all channels) */ + int _frames; + /** Number of frames that _data can hold */ + int _allocated_frames; + /** Audio data (so that, e.g. _data[2][6] is channel 2, sample 6) */ + float** _data; +}; + +extern int64_t video_frames_to_audio_frames (ContentVideoFrame v, float audio_sample_rate, float frames_per_second); +extern std::pair cpu_info (); + +class LocaleGuard +{ +public: + LocaleGuard (); + ~LocaleGuard (); + +private: + char* _old; +}; -#define RGB_TO_V_CCIR(r1, g1, b1, shift)\ -(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \ - FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128) #endif +