1 /* GStreamer ReplayGain analysis
2  *
3  * Copyright (C) 2006 Rene Stadler <mail@renestadler.de>
4  *
5  * gstrganalysis.h: Element that performs the ReplayGain analysis
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public License
9  * as published by the Free Software Foundation; either version 2.1 of
10  * the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20  * 02110-1301 USA
21  */
22 
23 #ifndef __GST_RG_ANALYSIS_H__
24 #define __GST_RG_ANALYSIS_H__
25 
26 #include <gst/gst.h>
27 #include <gst/base/gstbasetransform.h>
28 
29 #include "rganalysis.h"
30 
31 G_BEGIN_DECLS
32 
33 #define GST_TYPE_RG_ANALYSIS \
34   (gst_rg_analysis_get_type())
35 #define GST_RG_ANALYSIS(obj) \
36   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RG_ANALYSIS,GstRgAnalysis))
37 #define GST_RG_ANALYSIS_CLASS(klass) \
38   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RG_ANALYSIS,GstRgAnalysisClass))
39 #define GST_IS_RG_ANALYSIS(obj) \
40   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RG_ANALYSIS))
41 #define GST_IS_RG_ANALYSIS_CLASS(klass) \
42   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RG_ANALYSIS))
43 typedef struct _GstRgAnalysis GstRgAnalysis;
44 typedef struct _GstRgAnalysisClass GstRgAnalysisClass;
45 
46 /**
47  * GstRgAnalysis:
48  *
49  * Opaque data structure.
50  */
51 struct _GstRgAnalysis
52 {
53   GstBaseTransform element;
54 
55   /*< private >*/
56 
57   RgAnalysisCtx *ctx;
58   void (*analyze) (RgAnalysisCtx * ctx, gconstpointer data, gsize size,
59       guint depth);
60   gint depth;
61 
62   /* Property values. */
63   guint num_tracks;
64   gdouble reference_level;
65   gboolean forced;
66   gboolean message;
67 
68   /* State machinery for skipping. */
69   gboolean ignore_tags;
70   gboolean skip;
71   gboolean has_track_gain;
72   gboolean has_track_peak;
73   gboolean has_album_gain;
74   gboolean has_album_peak;
75 };
76 
77 struct _GstRgAnalysisClass
78 {
79   GstBaseTransformClass parent_class;
80 };
81 
82 GType gst_rg_analysis_get_type (void);
83 
84 G_END_DECLS
85 
86 #endif /* __GST_RG_ANALYSIS_H__ */
87