1 /* GStreamer ReplayGain analysis 2 * 3 * Copyright (C) 2006 Rene Stadler <mail@renestadler.de> 4 * Copyright (C) 2001 David Robinson <David@Robinson.org> 5 * Glen Sawyer <glensawyer@hotmail.com> 6 * 7 * rganalysis.h: Analyze raw audio data in accordance with ReplayGain 8 * 9 * This library is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public License 11 * as published by the Free Software Foundation; either version 2.1 of 12 * the License, or (at your option) any later version. 13 * 14 * This library is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with this library; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 22 * 02110-1301 USA 23 */ 24 25 #ifndef __RG_ANALYSIS_H__ 26 #define __RG_ANALYSIS_H__ 27 28 #include <glib.h> 29 #include <gst/gst.h> 30 31 G_BEGIN_DECLS 32 33 typedef struct _RgAnalysisCtx RgAnalysisCtx; 34 35 RgAnalysisCtx *rg_analysis_new (void); 36 gboolean rg_analysis_set_sample_rate (RgAnalysisCtx * ctx, gint sample_rate); 37 void rg_analysis_analyze_mono_float (RgAnalysisCtx * ctx, gconstpointer data, 38 gsize size, guint depth); 39 void rg_analysis_analyze_stereo_float (RgAnalysisCtx * ctx, gconstpointer data, 40 gsize size, guint depth); 41 void rg_analysis_analyze_mono_int16 (RgAnalysisCtx * ctx, gconstpointer data, 42 gsize size, guint depth); 43 void rg_analysis_analyze_stereo_int16 (RgAnalysisCtx * ctx, gconstpointer data, 44 gsize size, guint depth); 45 void rg_analysis_analyze (RgAnalysisCtx * ctx, const gfloat * samples_l, 46 const gfloat * samples_r, guint n_samples); 47 gboolean rg_analysis_track_result (RgAnalysisCtx * ctx, gdouble * gain, 48 gdouble * peak); 49 gboolean rg_analysis_album_result (RgAnalysisCtx * ctx, gdouble * gain, 50 gdouble * peak); 51 void rg_analysis_init_silence_detection ( 52 RgAnalysisCtx * ctx, 53 void (*post_message) (gpointer analysis, GstClockTime timestamp, GstClockTime duration, gdouble rglevel), 54 gpointer analysis); 55 void rg_analysis_start_buffer (RgAnalysisCtx * ctx, 56 GstClockTime buffer_timestamp); 57 void rg_analysis_reset_album (RgAnalysisCtx * ctx); 58 void rg_analysis_reset (RgAnalysisCtx * ctx); 59 void rg_analysis_destroy (RgAnalysisCtx * ctx); 60 61 G_END_DECLS 62 63 #endif /* __RG_ANALYSIS_H__ */ 64