--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/helpers/dynamic_bitrate_helper.cpp	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,77 @@
+#include "StdAfx.h"
+
+#include "dynamic_bitrate_helper.h"
+#include <SDK/config_object.h>
+
+static unsigned g_query_settings()
+{
+	t_int32 temp;
+	try {
+		config_object::g_get_data_int32(standard_config_objects::int32_dynamic_bitrate_display_rate,temp);
+	} catch(std::exception const &) {return 9;}
+	if (temp < 0) return 0;
+	return (unsigned) temp;
+}
+
+dynamic_bitrate_helper::dynamic_bitrate_helper()
+{
+	reset();
+}
+
+void dynamic_bitrate_helper::init()
+{
+	if (!m_inited)
+	{
+		m_inited = true;
+		unsigned temp = g_query_settings();
+		if (temp > 0) {m_enabled = true; m_update_interval = 1.0 / (double) temp; }
+		else {m_enabled = false; m_update_interval = 0; }
+		m_last_duration = 0;
+		m_update_bits = 0;
+		m_update_time = 0;
+
+	}
+}
+
+void dynamic_bitrate_helper::on_frame(double p_duration,t_size p_bits)
+{
+	init();
+	m_last_duration = p_duration;
+	m_update_time += p_duration;
+	m_update_bits += p_bits;
+}
+
+bool dynamic_bitrate_helper::on_update(file_info & p_out, double & p_timestamp_delta)
+{
+	init();
+
+	bool ret = false;
+	if (m_enabled)
+	{
+		if (m_update_time > m_update_interval)
+		{
+			int val = (int) ( ((double)m_update_bits / m_update_time + 500.0) / 1000.0 );
+			if (val != p_out.info_get_bitrate_vbr())
+			{
+				p_timestamp_delta = - (m_update_time - m_last_duration);	//relative to last frame beginning;
+				p_out.info_set_bitrate_vbr(val);
+				ret = true;
+			}
+			m_update_bits = 0;
+			m_update_time = 0;
+		}
+	}
+	else
+	{
+		m_update_bits = 0;
+		m_update_time = 0;
+	}
+
+	return ret;
+
+}
+
+void dynamic_bitrate_helper::reset()
+{
+	m_inited = false;
+}