X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.cc;h=de5fbf8d18ecb56182a799d6a58f23532b39bc30;hb=237a0052c60af768f4d62b00321932918b7ba4d9;hp=872985024ac9a5779bfab4f9fa6fdd4988984047;hpb=b1873c51b2e8265a01a8f0eced7fc3465f1677dc;p=dcpomatic.git diff --git a/src/lib/util.cc b/src/lib/util.cc index 872985024..de5fbf8d1 100644 --- a/src/lib/util.cc +++ b/src/lib/util.cc @@ -27,7 +27,7 @@ #include #include #include -#ifdef DVDOMATIC_POSIX +#ifdef DCPOMATIC_POSIX #include #include #endif @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -60,12 +61,38 @@ extern "C" { #include "filter.h" #include "sound_processor.h" #include "config.h" +#ifdef DVDOMATIC_WINDOWS +#include "stack.hpp" +#endif -using namespace std; -using namespace boost; +#include "i18n.h" + +using std::string; +using std::stringstream; +using std::setfill; +using std::ostream; +using std::endl; +using std::vector; +using std::hex; +using std::setw; +using std::ifstream; +using std::ios; +using std::min; +using std::max; +using std::list; +using std::multimap; +using std::istream; +using std::numeric_limits; +using std::pair; +using std::ofstream; +using boost::shared_ptr; +using boost::thread; +using boost::lexical_cast; +using boost::optional; using libdcp::Size; -thread::id ui_thread; +boost::thread::id ui_thread; +boost::filesystem::path backtrace_file; /** Convert some number of seconds to a string representation * in hours, minutes and seconds. @@ -83,15 +110,21 @@ seconds_to_hms (int s) m -= (h * 60); stringstream hms; - hms << h << ":"; + hms << h << N_(":"); hms.width (2); - hms << setfill ('0') << m << ":"; + hms << std::setfill ('0') << m << N_(":"); hms.width (2); - hms << setfill ('0') << s; + hms << std::setfill ('0') << s; return hms.str (); } +string +time_to_hms (Time t) +{ + return seconds_to_hms (t / TIME_HZ); +} + /** @param s Number of seconds. * @return String containing an approximate description of s (e.g. "about 2 hours") */ @@ -107,40 +140,40 @@ seconds_to_approximate_hms (int s) if (h > 0) { if (m > 30) { - ap << (h + 1) << " hours"; + ap << (h + 1) << N_(" ") << _("hours"); } else { if (h == 1) { - ap << "1 hour"; + ap << N_("1 ") << _("hour"); } else { - ap << h << " hours"; + ap << h << N_(" ") << _("hours"); } } } else if (m > 0) { if (m == 1) { - ap << "1 minute"; + ap << N_("1 ") << _("minute"); } else { - ap << m << " minutes"; + ap << m << N_(" ") << _("minutes"); } } else { - ap << s << " seconds"; + ap << s << N_(" ") << _("seconds"); } return ap.str (); } -#ifdef DVDOMATIC_POSIX +#ifdef DCPOMATIC_POSIX /** @param l Mangled C++ identifier. * @return Demangled version. */ static string demangle (string l) { - string::size_type const b = l.find_first_of ("("); + string::size_type const b = l.find_first_of (N_("(")); if (b == string::npos) { return l; } - string::size_type const p = l.find_last_of ("+"); + string::size_type const p = l.find_last_of (N_("+")); if (p == string::npos) { return l; } @@ -183,7 +216,7 @@ stacktrace (ostream& out, int levels) if (strings) { for (i = 0; i < size && (levels == 0 || i < size_t(levels)); i++) { - out << " " << demangle (strings[i]) << endl; + out << N_(" ") << demangle (strings[i]) << "\n"; } free (strings); @@ -198,7 +231,7 @@ static string ffmpeg_version_to_string (int v) { stringstream s; - s << ((v & 0xff0000) >> 16) << "." << ((v & 0xff00) >> 8) << "." << (v & 0xff); + s << ((v & 0xff0000) >> 16) << N_(".") << ((v & 0xff00) >> 8) << N_(".") << (v & 0xff); return s.str (); } @@ -207,16 +240,16 @@ string dependency_version_summary () { stringstream s; - s << "libopenjpeg " << opj_version () << ", " - << "libavcodec " << ffmpeg_version_to_string (avcodec_version()) << ", " - << "libavfilter " << ffmpeg_version_to_string (avfilter_version()) << ", " - << "libavformat " << ffmpeg_version_to_string (avformat_version()) << ", " - << "libavutil " << ffmpeg_version_to_string (avutil_version()) << ", " - << "libpostproc " << ffmpeg_version_to_string (postproc_version()) << ", " - << "libswscale " << ffmpeg_version_to_string (swscale_version()) << ", " - << MagickVersion << ", " - << "libssh " << ssh_version (0) << ", " - << "libdcp " << libdcp::version << " git " << libdcp::git_commit; + s << N_("libopenjpeg ") << opj_version () << N_(", ") + << N_("libavcodec ") << ffmpeg_version_to_string (avcodec_version()) << N_(", ") + << N_("libavfilter ") << ffmpeg_version_to_string (avfilter_version()) << N_(", ") + << N_("libavformat ") << ffmpeg_version_to_string (avformat_version()) << N_(", ") + << N_("libavutil ") << ffmpeg_version_to_string (avutil_version()) << N_(", ") + << N_("libpostproc ") << ffmpeg_version_to_string (postproc_version()) << N_(", ") + << N_("libswscale ") << ffmpeg_version_to_string (swscale_version()) << N_(", ") + << MagickVersion << N_(", ") + << N_("libssh ") << ssh_version (0) << N_(", ") + << N_("libdcp ") << libdcp::version << N_(" git ") << libdcp::git_commit; return s.str (); } @@ -227,19 +260,82 @@ seconds (struct timeval t) return t.tv_sec + (double (t.tv_usec) / 1e6); } +#ifdef DVDOMATIC_WINDOWS +LONG WINAPI exception_handler(struct _EXCEPTION_POINTERS *) +{ + dbg::stack s; + ofstream f (backtrace_file.string().c_str()); + std::copy(s.begin(), s.end(), std::ostream_iterator(f, "\n")); + return EXCEPTION_CONTINUE_SEARCH; +} +#endif + /** Call the required functions to set up DVD-o-matic's static arrays, etc. * Must be called from the UI thread, if there is one. */ void -dvdomatic_setup () +dcpomatic_setup () { +#ifdef DVDOMATIC_WINDOWS + backtrace_file /= g_get_user_config_dir (); + backtrace_file /= "backtrace.txt"; + SetUnhandledExceptionFilter(exception_handler); +#endif + + avfilter_register_all (); + Format::setup_formats (); DCPContentType::setup_dcp_content_types (); Scaler::setup_scalers (); Filter::setup_filters (); SoundProcessor::setup_sound_processors (); - ui_thread = this_thread::get_id (); + ui_thread = boost::this_thread::get_id (); +} + +#ifdef DCPOMATIC_WINDOWS +boost::filesystem::path +mo_path () +{ + wchar_t buffer[512]; + GetModuleFileName (0, buffer, 512 * sizeof(wchar_t)); + boost::filesystem::path p (buffer); + p = p.parent_path (); + p = p.parent_path (); + p /= "locale"; + return p; +} +#endif + +void +dcpomatic_setup_gettext_i18n (string lang) +{ +#ifdef DCPOMATIC_POSIX + lang += ".UTF8"; +#endif + + if (!lang.empty ()) { + /* Override our environment language; this is essential on + Windows. + */ + char cmd[64]; + snprintf (cmd, sizeof(cmd), "LANGUAGE=%s", lang.c_str ()); + putenv (cmd); + snprintf (cmd, sizeof(cmd), "LANG=%s", lang.c_str ()); + putenv (cmd); + } + + setlocale (LC_ALL, ""); + textdomain ("libdcpomatic"); + +#ifdef DCPOMATIC_WINDOWS + bindtextdomain ("libdcpomatic", mo_path().string().c_str()); + bind_textdomain_codeset ("libdcpomatic", "UTF8"); +#endif + +#ifdef DCPOMATIC_POSIX + bindtextdomain ("libdcpomatic", POSIX_LOCALE_PREFIX); +#endif } /** @param start Start position for the crop within the image. @@ -250,7 +346,7 @@ string crop_string (Position start, libdcp::Size size) { stringstream s; - s << "crop=" << size.width << ":" << size.height << ":" << start.x << ":" << start.y; + s << N_("crop=") << size.width << N_(":") << size.height << N_(":") << start.x << N_(":") << start.y; return s.str (); } @@ -266,7 +362,7 @@ split_at_spaces_considering_quotes (string s) for (string::size_type i = 0; i < s.length(); ++i) { if (s[i] == ' ' && !in_quotes) { out.push_back (c); - c = ""; + c = N_(""); } else if (s[i] == '"') { in_quotes = !in_quotes; } else { @@ -289,7 +385,7 @@ md5_digest (void const * data, int size) stringstream s; for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) { - s << hex << setfill('0') << setw(2) << ((int) digest[i]); + s << std::hex << std::setfill('0') << std::setw(2) << ((int) digest[i]); } return s.str (); @@ -299,16 +395,16 @@ md5_digest (void const * data, int size) * @return MD5 digest of file's contents. */ string -md5_digest (string file) +md5_digest (boost::filesystem::path file) { - ifstream f (file.c_str(), ios::binary); + ifstream f (file.string().c_str(), std::ios::binary); if (!f.good ()) { - throw OpenFileError (file); + throw OpenFileError (file.string()); } - f.seekg (0, ios::end); + f.seekg (0, std::ios::end); int bytes = f.tellg (); - f.seekg (0, ios::beg); + f.seekg (0, std::ios::beg); int const buffer_size = 64 * 1024; char buffer[buffer_size]; @@ -327,13 +423,14 @@ md5_digest (string file) stringstream s; for (int i = 0; i < MD5_DIGEST_LENGTH; ++i) { - s << hex << setfill('0') << setw(2) << ((int) digest[i]); + s << std::hex << std::setfill('0') << std::setw(2) << ((int) digest[i]); } return s.str (); } -static bool about_equal (float a, float b) +static bool +about_equal (float a, float b) { /* A film of F seconds at f FPS will be Ff frames; Consider some delta FPS d, so if we run the same @@ -359,81 +456,11 @@ static bool about_equal (float a, float b) return (fabs (a - b) < 1e-4); } -class FrameRateCandidate -{ -public: - FrameRateCandidate (float source_, int dcp_) - : source (source_) - , dcp (dcp_) - {} - - bool skip () const { - return !about_equal (source, dcp) && source > dcp; - } - - bool repeat () const { - return !about_equal (source, dcp) && source < dcp; - } - - float source; - int dcp; -}; - -/** @param fps Arbitrary source frames-per-second value */ -/** XXX: this could be slow-ish */ -DCPFrameRate::DCPFrameRate (float source_fps) -{ - list const allowed_dcp_frame_rates = Config::instance()->allowed_dcp_frame_rates (); - - /* Work out what rates we could manage, including those achieved by using skip / repeat. */ - list candidates; - - /* Start with the ones without skip / repeat so they will get matched in preference to skipped/repeated ones */ - for (list::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) { - candidates.push_back (FrameRateCandidate (*i, *i)); - } - - /* Then the skip/repeat ones */ - for (list::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) { - candidates.push_back (FrameRateCandidate (float (*i) / 2, *i)); - candidates.push_back (FrameRateCandidate (float (*i) * 2, *i)); - } - - /* Pick the best one, bailing early if we hit an exact match */ - float error = numeric_limits::max (); - boost::optional best; - list::iterator i = candidates.begin(); - while (i != candidates.end()) { - - if (about_equal (i->source, source_fps)) { - best = *i; - break; - } - - float const e = fabs (i->source - source_fps); - if (e < error) { - error = e; - best = *i; - } - - ++i; - } - - if (!best) { - throw EncodeError ("cannot find a suitable DCP frame rate for this source"); - } - - frames_per_second = best->dcp; - skip = best->skip (); - repeat = best->repeat (); - change_speed = !about_equal (source_fps * factor(), frames_per_second); -} - -/** @param An arbitrary sampling rate. - * @return The appropriate DCP-approved sampling rate (48kHz or 96kHz). +/** @param An arbitrary audio frame rate. + * @return The appropriate DCP-approved frame rate (48kHz or 96kHz). */ int -dcp_audio_sample_rate (int fs) +dcp_audio_frame_rate (int fs) { if (fs <= 48000) { return 48000; @@ -442,29 +469,6 @@ dcp_audio_sample_rate (int fs) return 96000; } -int -dcp_audio_channels (int f) -{ - if (f == 1) { - /* The source is mono, so to put the mono channel into - the centre we need to generate a 5.1 soundtrack. - */ - return 6; - } - - return f; -} - -bool operator== (Crop const & a, Crop const & b) -{ - return (a.left == b.left && a.right == b.right && a.top == b.top && a.bottom == b.bottom); -} - -bool operator!= (Crop const & a, Crop const & b) -{ - return !(a == b); -} - /** @param index Colour LUT index. * @return Human-readable name. */ @@ -473,193 +477,108 @@ colour_lut_index_to_name (int index) { switch (index) { case 0: - return "sRGB"; + return _("sRGB"); case 1: - return "Rec 709"; + return _("Rec 709"); } assert (false); - return ""; + return N_(""); } -Socket::Socket () +Socket::Socket (int timeout) : _deadline (_io_service) , _socket (_io_service) - , _buffer_data (0) + , _timeout (timeout) { - _deadline.expires_at (posix_time::pos_infin); + _deadline.expires_at (boost::posix_time::pos_infin); check (); } void Socket::check () { - if (_deadline.expires_at() <= asio::deadline_timer::traits_type::now ()) { + if (_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now ()) { _socket.close (); - _deadline.expires_at (posix_time::pos_infin); + _deadline.expires_at (boost::posix_time::pos_infin); } _deadline.async_wait (boost::bind (&Socket::check, this)); } -/** Blocking connect with timeout. +/** Blocking connect. * @param endpoint End-point to connect to. - * @param timeout Time-out in seconds. */ void -Socket::connect (asio::ip::basic_resolver_entry const & endpoint, int timeout) +Socket::connect (boost::asio::ip::basic_resolver_entry const & endpoint) { - _deadline.expires_from_now (posix_time::seconds (timeout)); - system::error_code ec = asio::error::would_block; - _socket.async_connect (endpoint, lambda::var(ec) = lambda::_1); + _deadline.expires_from_now (boost::posix_time::seconds (_timeout)); + boost::system::error_code ec = boost::asio::error::would_block; + _socket.async_connect (endpoint, boost::lambda::var(ec) = boost::lambda::_1); do { _io_service.run_one(); - } while (ec == asio::error::would_block); + } while (ec == boost::asio::error::would_block); if (ec || !_socket.is_open ()) { - throw NetworkError ("connect timed out"); + throw NetworkError (_("connect timed out")); } } -/** Blocking write with timeout. +/** Blocking write. * @param data Buffer to write. * @param size Number of bytes to write. - * @param timeout Time-out, in seconds. */ void -Socket::write (uint8_t const * data, int size, int timeout) +Socket::write (uint8_t const * data, int size) { - _deadline.expires_from_now (posix_time::seconds (timeout)); - system::error_code ec = asio::error::would_block; + _deadline.expires_from_now (boost::posix_time::seconds (_timeout)); + boost::system::error_code ec = boost::asio::error::would_block; - asio::async_write (_socket, asio::buffer (data, size), lambda::var(ec) = lambda::_1); + boost::asio::async_write (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1); + do { _io_service.run_one (); - } while (ec == asio::error::would_block); + } while (ec == boost::asio::error::would_block); if (ec) { - throw NetworkError ("write timed out"); + throw NetworkError (ec.message ()); } } -/** Blocking read with timeout. - * @param data Buffer to read to. - * @param size Number of bytes to read. - * @param timeout Time-out, in seconds. - */ -int -Socket::read (uint8_t* data, int size, int timeout) -{ - _deadline.expires_from_now (posix_time::seconds (timeout)); - system::error_code ec = asio::error::would_block; - - int amount_read = 0; - - _socket.async_read_some ( - asio::buffer (data, size), - (lambda::var(ec) = lambda::_1, lambda::var(amount_read) = lambda::_2) - ); - - do { - _io_service.run_one (); - } while (ec == asio::error::would_block); - - if (ec) { - amount_read = 0; - } - - return amount_read; -} - -/** Mark some data as being `consumed', so that it will not be returned - * as data again. - * @param size Amount of data to consume, in bytes. - */ void -Socket::consume (int size) +Socket::write (uint32_t v) { - assert (_buffer_data >= size); - - _buffer_data -= size; - if (_buffer_data > 0) { - /* Shift still-valid data to the start of the buffer */ - memmove (_buffer, _buffer + size, _buffer_data); - } + v = htonl (v); + write (reinterpret_cast (&v), 4); } -/** Read a definite amount of data from our socket, and mark - * it as consumed. - * @param data Where to put the data. +/** Blocking read. + * @param data Buffer to read to. * @param size Number of bytes to read. */ void -Socket::read_definite_and_consume (uint8_t* data, int size, int timeout) -{ - int const from_buffer = min (_buffer_data, size); - if (from_buffer > 0) { - /* Get data from our buffer */ - memcpy (data, _buffer, from_buffer); - consume (from_buffer); - /* Update our output state */ - data += from_buffer; - size -= from_buffer; - } - - /* read() the rest */ - while (size > 0) { - int const n = read (data, size, timeout); - if (n <= 0) { - throw NetworkError ("could not read"); - } - - data += n; - size -= n; - } -} - -/** Read as much data as is available, up to some limit. - * @param data Where to put the data. - * @param size Maximum amount of data to read. - */ -void -Socket::read_indefinite (uint8_t* data, int size, int timeout) +Socket::read (uint8_t* data, int size) { - assert (size < int (sizeof (_buffer))); + _deadline.expires_from_now (boost::posix_time::seconds (_timeout)); + boost::system::error_code ec = boost::asio::error::would_block; - /* Amount of extra data we need to read () */ - int to_read = size - _buffer_data; - while (to_read > 0) { - /* read as much of it as we can (into our buffer) */ - int const n = read (_buffer + _buffer_data, to_read, timeout); - if (n <= 0) { - throw NetworkError ("could not read"); - } + boost::asio::async_read (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1); - to_read -= n; - _buffer_data += n; + do { + _io_service.run_one (); + } while (ec == boost::asio::error::would_block); + + if (ec) { + throw NetworkError (ec.message ()); } - - assert (_buffer_data >= size); - - /* copy data into the output buffer */ - assert (size >= _buffer_data); - memcpy (data, _buffer, size); } -/** @param other A Rect. - * @return The intersection of this with `other'. - */ -Rect -Rect::intersection (Rect const & other) const +uint32_t +Socket::read_uint32 () { - int const tx = max (x, other.x); - int const ty = max (y, other.y); - - return Rect ( - tx, ty, - min (x + width, other.x + other.width) - tx, - min (y + height, other.y + other.height) - ty - ); + uint32_t v; + read (reinterpret_cast (&v), 4); + return ntohl (v); } /** Round a number up to the nearest multiple of another number. @@ -722,13 +641,13 @@ string get_required_string (multimap const & kv, string k) { if (kv.count (k) > 1) { - throw StringError ("unexpected multiple keys in key-value set"); + throw StringError (N_("unexpected multiple keys in key-value set")); } multimap::const_iterator i = kv.find (k); if (i == kv.end ()) { - throw StringError (String::compose ("missing key %1 in key-value set", k)); + throw StringError (String::compose (_("missing key %1 in key-value set"), k)); } return i->second; @@ -752,12 +671,12 @@ string get_optional_string (multimap const & kv, string k) { if (kv.count (k) > 1) { - throw StringError ("unexpected multiple keys in key-value set"); + throw StringError (N_("unexpected multiple keys in key-value set")); } multimap::const_iterator i = kv.find (k); if (i == kv.end ()) { - return ""; + return N_(""); } return i->second; @@ -767,7 +686,7 @@ int get_optional_int (multimap const & kv, string k) { if (kv.count (k) > 1) { - throw StringError ("unexpected multiple keys in key-value set"); + throw StringError (N_("unexpected multiple keys in key-value set")); } multimap::const_iterator i = kv.find (k); @@ -778,171 +697,24 @@ get_optional_int (multimap const & kv, string k) return lexical_cast (i->second); } -/** Construct an AudioBuffers. Audio data is undefined after this constructor. - * @param channels Number of channels. - * @param frames Number of frames to reserve space for. - */ -AudioBuffers::AudioBuffers (int channels, int frames) - : _channels (channels) - , _frames (frames) - , _allocated_frames (frames) -{ - _data = new float*[_channels]; - for (int i = 0; i < _channels; ++i) { - _data[i] = new float[frames]; - } -} - -/** Copy constructor. - * @param other Other AudioBuffers; data is copied. - */ -AudioBuffers::AudioBuffers (AudioBuffers const & other) - : _channels (other._channels) - , _frames (other._frames) - , _allocated_frames (other._frames) -{ - _data = new float*[_channels]; - for (int i = 0; i < _channels; ++i) { - _data[i] = new float[_frames]; - memcpy (_data[i], other._data[i], _frames * sizeof (float)); - } -} - -/** AudioBuffers destructor */ -AudioBuffers::~AudioBuffers () -{ - for (int i = 0; i < _channels; ++i) { - delete[] _data[i]; - } - - delete[] _data; -} - -/** @param c Channel index. - * @return Buffer for this channel. - */ -float* -AudioBuffers::data (int c) const -{ - assert (c >= 0 && c < _channels); - return _data[c]; -} - -/** Set the number of frames that these AudioBuffers will report themselves - * as having. - * @param f Frames; must be less than or equal to the number of allocated frames. - */ -void -AudioBuffers::set_frames (int f) -{ - assert (f <= _allocated_frames); - _frames = f; -} - -/** Make all samples on all channels silent */ -void -AudioBuffers::make_silent () -{ - for (int i = 0; i < _channels; ++i) { - make_silent (i); - } -} - -/** Make all samples on a given channel silent. - * @param c Channel. - */ -void -AudioBuffers::make_silent (int c) -{ - assert (c >= 0 && c < _channels); - - for (int i = 0; i < _frames; ++i) { - _data[c][i] = 0; - } -} - -/** Copy data from another AudioBuffers to this one. All channels are copied. - * @param from AudioBuffers to copy from; must have the same number of channels as this. - * @param frames_to_copy Number of frames to copy. - * @param read_offset Offset to read from in `from'. - * @param write_offset Offset to write to in `to'. - */ -void -AudioBuffers::copy_from (AudioBuffers* from, int frames_to_copy, int read_offset, int write_offset) -{ - assert (from->channels() == channels()); - - assert (from); - assert (read_offset >= 0 && (read_offset + frames_to_copy) <= from->_allocated_frames); - assert (write_offset >= 0 && (write_offset + frames_to_copy) <= _allocated_frames); - - for (int i = 0; i < _channels; ++i) { - memcpy (_data[i] + write_offset, from->_data[i] + read_offset, frames_to_copy * sizeof(float)); - } -} - -/** Move audio data around. - * @param from Offset to move from. - * @param to Offset to move to. - * @param frames Number of frames to move. - */ - -void -AudioBuffers::move (int from, int to, int frames) -{ - if (frames == 0) { - return; - } - - assert (from >= 0); - assert (from < _frames); - assert (to >= 0); - assert (to < _frames); - assert (frames > 0); - assert (frames <= _frames); - assert ((from + frames) <= _frames); - assert ((to + frames) <= _frames); - - for (int i = 0; i < _channels; ++i) { - memmove (_data[i] + to, _data[i] + from, frames * sizeof(float)); - } -} - /** Trip an assert if the caller is not in the UI thread */ void ensure_ui_thread () { - assert (this_thread::get_id() == ui_thread); + assert (boost::this_thread::get_id() == ui_thread); } -/** @param v Source video frame. +/** @param v Content video frame. * @param audio_sample_rate Source audio sample rate. * @param frames_per_second Number of video frames per second. * @return Equivalent number of audio frames for `v'. */ int64_t -video_frames_to_audio_frames (SourceFrame v, float audio_sample_rate, float frames_per_second) +video_frames_to_audio_frames (ContentVideoFrame v, float audio_sample_rate, float frames_per_second) { return ((int64_t) v * audio_sample_rate / frames_per_second); } -/** @param f Filename. - * @return true if this file is a still image, false if it is something else. - */ -bool -still_image_file (string f) -{ -#if BOOST_FILESYSTEM_VERSION == 3 - string ext = boost::filesystem::path(f).extension().string(); -#else - string ext = boost::filesystem::path(f).extension(); -#endif - - transform (ext.begin(), ext.end(), ext.begin(), ::tolower); - - return (ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" || ext == ".png"); -} - /** @return A pair containing CPU model name and the number of processors */ pair cpu_info () @@ -950,17 +722,17 @@ cpu_info () pair info; info.second = 0; -#ifdef DVDOMATIC_POSIX - ifstream f ("/proc/cpuinfo"); +#ifdef DCPOMATIC_POSIX + ifstream f (N_("/proc/cpuinfo")); while (f.good ()) { string l; getline (f, l); - if (boost::algorithm::starts_with (l, "model name")) { + if (boost::algorithm::starts_with (l, N_("model name"))) { string::size_type const c = l.find (':'); if (c != string::npos) { info.first = l.substr (c + 2); } - } else if (boost::algorithm::starts_with (l, "processor")) { + } else if (boost::algorithm::starts_with (l, N_("processor"))) { ++info.second; } } @@ -968,3 +740,71 @@ cpu_info () return info; } + +string +audio_channel_name (int c) +{ + assert (MAX_AUDIO_CHANNELS == 6); + + /* TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency + enhancement channel (sub-woofer)./ + */ + string const channels[] = { + _("Left"), + _("Right"), + _("Centre"), + _("Lfe (sub)"), + _("Left surround"), + _("Right surround"), + }; + + return channels[c]; +} + +FrameRateConversion::FrameRateConversion (float source, int dcp) + : skip (false) + , repeat (false) + , change_speed (false) +{ + if (fabs (source / 2.0 - dcp) < (fabs (source - dcp))) { + skip = true; + } else if (fabs (source * 2 - dcp) < fabs (source - dcp)) { + repeat = true; + } + + change_speed = !about_equal (source * factor(), dcp); + + if (!skip && !repeat && !change_speed) { + description = _("DCP and source have the same rate.\n"); + } else { + if (skip) { + description = _("DCP will use every other frame of the source.\n"); + } else if (repeat) { + description = _("Each source frame will be doubled in the DCP.\n"); + } + + if (change_speed) { + float const pc = dcp * 100 / (source * factor()); + description += String::compose (_("DCP will run at %1%% of the source speed.\n"), pc); + } + } +} + +LocaleGuard::LocaleGuard () + : _old (0) +{ + char const * old = setlocale (LC_NUMERIC, 0); + + if (old) { + _old = strdup (old); + if (strcmp (_old, "C")) { + setlocale (LC_NUMERIC, "C"); + } + } +} + +LocaleGuard::~LocaleGuard () +{ + setlocale (LC_NUMERIC, _old); + free (_old); +}