X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Futil.cc;h=2e467125181afe6a3c75a2848d625c0101c8ce98;hb=fed8744100ee8e58c09b0394d05ac908f2c4e15f;hp=3d70a3122166bce4f66b1f50f58fea05bb822954;hpb=5121d13ded51a70169f5b5d649067c9b26456705;p=dcpomatic.git

diff --git a/src/lib/util.cc b/src/lib/util.cc
index 3d70a3122..2e4671251 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -235,9 +235,6 @@ seconds (struct timeval t)
 void
 dvdomatic_setup ()
 {
-	bindtextdomain ("libdvdomatic", LOCALE_PREFIX);
-	setlocale (LC_ALL, "");
-	
 	avfilter_register_all ();
 	
 	Format::setup_formats ();
@@ -249,6 +246,41 @@ dvdomatic_setup ()
 	ui_thread = this_thread::get_id ();
 }
 
+#ifdef DVDOMATIC_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
+dvdomatic_setup_i18n (string lang)
+{
+	setlocale (LC_ALL, "");
+	textdomain ("libdvdomatic");
+	
+#ifdef DVDOMATIC_WINDOWS
+	string const e = "LANGUAGE=" + lang;
+	putenv (e.c_str());
+
+	bindtextdomain ("libdvdomatic", mo_path().string().c_str());
+#else
+	/* Hack to silence warning */
+	lang.clear ();
+#endif	
+
+#ifdef DVDOMATIC_POSIX
+	bindtextdomain ("libdvdomatic", POSIX_LOCALE_PREFIX);
+#endif	
+}
+
 /** @param start Start position for the crop within the image.
  *  @param size Size of the cropped area.
  *  @return FFmpeg crop filter string.
@@ -375,21 +407,12 @@ public:
 		, 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)
+int
+best_dcp_frame_rate (float source_fps)
 {
 	list<int> const allowed_dcp_frame_rates = Config::instance()->allowed_dcp_frame_rates ();
 
@@ -427,14 +450,8 @@ DCPFrameRate::DCPFrameRate (float source_fps)
 		++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);
+	assert (best);
+	return best->dcp;
 }
 
 /** @param An arbitrary sampling rate.
@@ -450,19 +467,6 @@ 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);
@@ -903,3 +907,104 @@ 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];
+}
+
+AudioMapping::AudioMapping (int c)
+	: _source_channels (c)
+{
+
+}
+
+optional<libdcp::Channel>
+AudioMapping::source_to_dcp (int c) const
+{
+	if (c >= _source_channels) {
+		return optional<libdcp::Channel> ();
+	}
+
+	if (_source_channels == 1) {
+		/* mono sources to centre */
+		return libdcp::CENTRE;
+	}
+	
+	return static_cast<libdcp::Channel> (c);
+}
+
+optional<int>
+AudioMapping::dcp_to_source (libdcp::Channel c) const
+{
+	if (_source_channels == 1) {
+		if (c == libdcp::CENTRE) {
+			return 0;
+		} else {
+			return optional<int> ();
+		}
+	}
+
+	if (static_cast<int> (c) >= _source_channels) {
+		return optional<int> ();
+	}
+	
+	return static_cast<int> (c);
+}
+
+int
+AudioMapping::dcp_channels () const
+{
+	if (_source_channels == 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 _source_channels;
+}
+
+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."), pc);
+		}
+	}
+}