X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fplugins%2Fgain%2Fgain.C;fp=cinelerra-5.1%2Fplugins%2Fgain%2Fgain.C;h=a83dc029231b446defd54d331401fcb9559c8da8;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=0000000000000000000000000000000000000000;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/plugins/gain/gain.C b/cinelerra-5.1/plugins/gain/gain.C
new file mode 100644
index 00000000..a83dc029
--- /dev/null
+++ b/cinelerra-5.1/plugins/gain/gain.C
@@ -0,0 +1,156 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ */
+
+#include "clip.h"
+#include "confirmsave.h"
+#include "bchash.h"
+#include "errorbox.h"
+#include "filexml.h"
+#include "language.h"
+#include "gain.h"
+#include "gainwindow.h"
+#include "samples.h"
+
+#include "vframe.h"
+
+#include <string.h>
+
+
+REGISTER_PLUGIN(Gain)
+
+
+GainConfig::GainConfig()
+{
+	level = 0.0;
+}
+
+int GainConfig::equivalent(GainConfig &that)
+{
+	return EQUIV(level, that.level);
+}
+
+void GainConfig::copy_from(GainConfig &that)
+{
+	this->level = that.level;
+}
+
+void GainConfig::interpolate(GainConfig &prev, 
+	GainConfig &next, 
+	int64_t prev_frame, 
+	int64_t next_frame, 
+	int64_t current_frame)
+{
+	double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
+	double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
+	level = prev.level * prev_scale + next.level * next_scale;
+}
+
+
+
+
+
+
+
+
+
+Gain::Gain(PluginServer *server)
+ : PluginAClient(server)
+{
+	
+}
+
+Gain::~Gain()
+{
+	
+}
+
+const char* Gain::plugin_title() { return _("Gain"); }
+int Gain::is_realtime() { return 1; }
+
+
+NEW_WINDOW_MACRO(Gain, GainWindow)
+LOAD_CONFIGURATION_MACRO(Gain, GainConfig)
+
+int Gain::process_realtime(int64_t size, Samples *input_ptr, Samples *output_ptr)
+{
+	load_configuration();
+
+	double gain = db.fromdb(config.level);
+	double *output_samples = output_ptr->get_data();
+	double *input_samples = input_ptr->get_data();
+
+	for(int64_t i = 0; i < size; i++)
+	{
+		output_samples[i] = input_samples[i] * gain;
+	}
+
+	return 0;
+}
+
+
+
+
+void Gain::save_data(KeyFrame *keyframe)
+{
+	FileXML output;
+
+// cause xml file to store data directly in text
+	output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
+
+	output.tag.set_title("GAIN");
+	output.tag.set_property("LEVEL", config.level);
+	output.append_tag();
+	output.tag.set_title("/GAIN");
+	output.append_tag();
+	output.append_newline();
+	output.terminate_string();
+}
+
+void Gain::read_data(KeyFrame *keyframe)
+{
+	FileXML input;
+// cause xml file to read directly from text
+	input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
+	int result = 0;
+
+	result = input.read_tag();
+
+	if(!result)
+	{
+		if(input.tag.title_is("GAIN"))
+		{
+			config.level = input.tag.get_property("LEVEL", config.level);
+		}
+	}
+}
+
+void Gain::update_gui()
+{
+	if(thread)
+	{
+		load_configuration();
+		thread->window->lock_window();
+		((GainWindow*)thread->window)->level->update(config.level);
+		thread->window->unlock_window();
+	}
+}
+
+