1 /* 

     2  * GStreamer

     3  * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>

     4  * Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>

     5  *

     6  * This library is free software; you can redistribute it and/or

     7  * modify it under the terms of the GNU Library General Public

     8  * License as published by the Free Software Foundation; either

     9  * version 2 of the License, or (at your option) any later version.

    10  *

    11  * This library is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * Library General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU Library General Public

    17  * License along with this library; if not, write to the

    18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    19  * Boston, MA 02111-1307, USA.

    20  */

    21 

    22 #ifndef __GST_AUDIO_AMPLIFY_H__

    23 #define __GST_AUDIO_AMPLIFY_H__

    24 

    25 #include <gst/gst.h>

    26 #include <gst/base/gstbasetransform.h>

    27 #include <gst/audio/audio.h>

    28 #include <gst/audio/gstaudiofilter.h>

    29 

    30 G_BEGIN_DECLS

    31 #define GST_TYPE_AUDIO_AMPLIFY            (gst_audio_amplify_get_type())

    32 #define GST_AUDIO_AMPLIFY(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplify))

    33 #define GST_IS_AUDIO_AMPLIFY(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AMPLIFY))

    34 #define GST_AUDIO_AMPLIFY_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplifyClass))

    35 #define GST_IS_AUDIO_AMPLIFY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_AMPLIFY))

    36 #define GST_AUDIO_AMPLIFY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_AMPLIFY,GstAudioAmplifyClass))

    37 typedef struct _GstAudioAmplify GstAudioAmplify;

    38 typedef struct _GstAudioAmplifyClass GstAudioAmplifyClass;

    39 

    40 typedef void (*GstAudioAmplifyProcessFunc) (GstAudioAmplify *, void *, guint);

    41 

    42 struct _GstAudioAmplify

    43 {

    44   GstAudioFilter audiofilter;

    45 

    46   gfloat amplification;

    47 

    48   /* < private > */

    49   GstAudioAmplifyProcessFunc process;

    50   gint clipping_method;

    51   gint format;

    52   gint width;

    53 };

    54 

    55 struct _GstAudioAmplifyClass

    56 {

    57   GstAudioFilterClass parent;

    58 };

    59 

    60 GType gst_audio_amplify_get_type (void);

    61 

    62 G_END_DECLS

    63 #endif /* __GST_AUDIO_AMPLIFY_H__ */