Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 61 insertions, 0 deletions

diff --git a/Src/ReplayGainAnalysis/gain_analysis.h b/Src/ReplayGainAnalysis/gain_analysis.h
new file mode 100644
index 00000000..7127079b
--- /dev/null
+++ b/Src/ReplayGainAnalysis/gain_analysis.h
@@ -0,0 +1,61 @@
+/*
+*  ReplayGainAnalysis - analyzes input samples and give the recommended dB change
+*  Copyright (C) 2001 David Robinson and Glen Sawyer
+*
+*  This library is free software; you can redistribute it and/or
+*  modify it under the terms of the GNU Lesser General Public
+*  License as published by the Free Software Foundation; either
+*  version 2.1 of the License, or (at your option) any later version.
+*
+*  This library 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
+*  Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public
+*  License along with this library; if not, write to the Free Software
+*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*
+*  concept and filter values by David Robinson (David@Robinson.org)
+*    -- blame him if you think the idea is flawed
+*  coding by Glen Sawyer (mp3gain@hotmail.com) 735 W 255 N, Orem, UT 84057-4505 USA
+*    -- blame him if you think this runs too slowly, or the coding is otherwise flawed
+*
+*  For an explanation of the concepts and the basic algorithms involved, go to:
+*    http://www.replaygain.org/
+*/
+
+#ifndef GAIN_ANALYSIS_H
+#define GAIN_ANALYSIS_H
+
+#include <stddef.h>
+#include <bfc/platform/export.h>
+
+#define GAIN_NOT_ENOUGH_SAMPLES  -24601
+#define GAIN_ANALYSIS_ERROR           0
+#define GAIN_ANALYSIS_OK              1
+
+#define INIT_GAIN_ANALYSIS_ERROR      0
+#define INIT_GAIN_ANALYSIS_OK         1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+	typedef float Float_t;         // Type used for filtering
+
+	DLLEXPORT void * WACreateRGContext();
+	DLLEXPORT void WAFreeRGContext(void *context);
+
+	int DLLEXPORT WAInitGainAnalysis(void *context, long samplefreq);
+	int DLLEXPORT WAAnalyzeSamples(void *context, const Float_t* left_samples, const Float_t* right_samples, size_t num_samples, int num_channels);
+	int	DLLEXPORT WAResetSampleFrequency ( void *context, long samplefreq );
+	Float_t DLLEXPORT WAGetTitleGain(void *context);
+	Float_t DLLEXPORT WAGetAlbumGain(void *context);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GAIN_ANALYSIS_H */