X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.h;h=87274cfff1d3b18c5e7e4729eb3f738dca5b7b81;hb=127672223cca569986e35c91265e269ed5a6561c;hp=3901e7ec697e2fc058e4b3f0f045631dc51d8bac;hpb=bb767c7e338414beee132af3e96829c1448e214b;p=dcpomatic.git diff --git a/src/lib/util.h b/src/lib/util.h index 3901e7ec6..87274cfff 100644 --- a/src/lib/util.h +++ b/src/lib/util.h @@ -28,94 +28,272 @@ #include #include #include +#include +#include +#include +#include extern "C" { #include #include } +#include "compose.hpp" + +#ifdef DVDOMATIC_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 void socket_write (int, uint8_t const *, int); extern double seconds (struct timeval); extern void dvdomatic_setup (); +extern void dvdomatic_setup_i18n (std::string); extern std::vector split_at_spaces_considering_quotes (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 DVDOMATIC_WINDOWS +extern boost::filesystem::path mo_path (); +#endif -enum ContentType { - STILL, - VIDEO +typedef int SourceFrame; +typedef int64_t ContentAudioFrame; +typedef int ContentVideoFrame; + +struct FrameRateConversion +{ + 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) + */ + bool change_speed; + + std::string description; }; -#ifdef DEBUG_HASH -extern void md5_data (std::string, void const *, int); -#endif +int best_dcp_frame_rate (float); + +enum ContentType { + STILL, ///< content is still images + VIDEO ///< content is a video +}; -/** @class SocketReader - * @brief A helper class from reading from sockets. +/** @struct Crop + * @brief A description of the crop of an image or video. */ -class SocketReader +struct Crop { -public: - SocketReader (int); - - void read_definite_and_consume (uint8_t *, int); - void read_indefinite (uint8_t *, int); - void consume (int); + Crop () : left (0), right (0), top (0), bottom (0) {} -private: - /** file descriptor we are reading from */ - int _fd; - /** a buffer for small reads */ - uint8_t _buffer[256]; - /** amount of valid data in the buffer */ - int _buffer_data; + /** 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; }; -/** @class Size - * @brief Representation of the size of something */ -struct Size +extern bool operator== (Crop const & a, Crop const & b); +extern bool operator!= (Crop const & a, Crop const & b); + +/** @struct Position + * @brief A position. + */ +struct Position { - /** Construct a zero Size */ - Size () - : width (0) - , height (0) + Position () + : x (0) + , y (0) {} - /** @param w Width. - * @param h Height. - */ - Size (int w, int h) - : width (w) - , height (h) + Position (int x_, int y_) + : x (x_) + , y (y_) {} - /** width */ - int width; - /** height */ - int height; + /** x coordinate */ + int x; + /** y coordinate */ + int y; }; -struct Position +/** @struct Rect + * @brief A rectangle. + */ +struct Rect { - Position () + Rect () : x (0) , y (0) + , width (0) + , height (0) {} - Position (int x_, int y_) + Rect (int x_, int y_, int w_, int h_) : x (x_) , y (y_) + , width (w_) + , height (h_) {} int x; int y; + int width; + int height; + + Position position () const { + return Position (x, y); + } + + libdcp::Size size () const { + return libdcp::Size (width, height); + } + + Rect intersection (Rect const & other) const; +}; + +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. + * + * This class wraps some things that I could not work out how to do with boost; + * most notably, sync read/write calls with timeouts. + */ +class Socket +{ +public: + 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); + + void write (uint32_t n); + void write (uint8_t const * data, int size); + + void read (uint8_t* data, int size); + uint32_t read_uint32 (); + +private: + void check (); + + Socket (Socket const &); + + boost::asio::io_service _io_service; + boost::asio::deadline_timer _deadline; + boost::asio::ip::tcp::socket _socket; + int _timeout; +}; + +/** @class AudioBuffers + * @brief A class to hold multi-channel audio data in float format. + */ +class AudioBuffers +{ +public: + AudioBuffers (int channels, int frames); + AudioBuffers (AudioBuffers const &); + ~AudioBuffers (); + + float** data () const { + return _data; + } + + float* data (int) const; + + int channels () const { + return _channels; + } + + int frames () const { + return _frames; + } + + void set_frames (int f); + + 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); + +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 std::string crop_string (Position, Size); +class AudioMapping +{ +public: + AudioMapping (int); + + boost::optional source_to_dcp (int c) const; + boost::optional dcp_to_source (libdcp::Channel c) const; + int dcp_channels () const; + +private: + int _source_channels; +}; + +extern int64_t video_frames_to_audio_frames (SourceFrame v, float audio_sample_rate, float frames_per_second); +extern bool still_image_file (std::string); +extern std::pair cpu_info (); #endif +