X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.h;h=c9e5bef16c0388c34ecbf50182b6ce4d90ac44c9;hb=aabf54736d7401437af7f066c51fee91be64e809;hp=8d6e2f5415f5a202b6b30c2baa0065bfe964827c;hpb=e89fb9d81358b51ed0e231725f7fb6eb63f96c5b;p=dcpomatic.git diff --git a/src/lib/util.h b/src/lib/util.h index 8d6e2f541..c9e5bef16 100644 --- a/src/lib/util.h +++ b/src/lib/util.h @@ -29,70 +29,112 @@ #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 + +#undef check + +/** The maximum number of audio channels that we can cope with */ +#define MAX_AUDIO_CHANNELS 6 class Scaler; +class Film; 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 dvdomatic_setup_gettext_i18n (std::string); extern std::vector split_at_spaces_considering_quotes (std::string); extern std::string md5_digest (std::string); - -enum ContentType { - STILL, - VIDEO -}; - -#ifdef DEBUG_HASH -extern void md5_data (std::string, void const *, int); +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 -/** @class Size - * @brief Representation of the size of something */ -struct Size +typedef int SourceFrame; + +struct FrameRateConversion { - /** Construct a zero Size */ - Size () - : width (0) - , height (0) - {} + FrameRateConversion (float, int); - /** @param w Width. - * @param h Height. + /** @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) - {} + bool change_speed; - /** width */ - int width; - /** height */ - int height; + std::string description; }; +int best_dcp_frame_rate (float); + +enum ContentType { + STILL, ///< content is still images + VIDEO ///< content is a video +}; + +/** @struct Crop + * @brief 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; }; 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 { Position () @@ -105,43 +147,173 @@ struct Position , y (y_) {} + /** x coordinate */ int x; + /** y coordinate */ int y; }; -extern std::string crop_string (Position, Size); +namespace dvdomatic +{ + +/** @struct Rect + * @brief A rectangle. + */ +struct Rect +{ + Rect () + : x (0) + , y (0) + , width (0) + , height (0) + {} + + 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 DeadlineWrapper +/** @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: - DeadlineWrapper (); + 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); - int read (uint8_t* 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 (); - DeadlineWrapper (DeadlineWrapper const &); + 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; }; +/** @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 (boost::shared_ptr); + ~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; +}; + +class AudioMapping +{ +public: + AudioMapping (boost::shared_ptr); + + boost::optional source_to_dcp (int c) const; + boost::optional dcp_to_source (libdcp::Channel c) const; + + int minimum_dcp_channels () const; + int dcp_channels () const; + +private: + int _source_channels; + int _minimum_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); + +class LocaleGuard +{ +public: + LocaleGuard (); + ~LocaleGuard (); + +private: + char* _old; +}; + + #endif +