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98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
/* -*- c-basic-offset: 2 -*-
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* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VOLUME_H__
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#define __GST_VOLUME_H__
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#include <config.h>
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#include <gst/gst.h>
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// #include <gst/meta/audioraw.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_VOLUME \
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(gst_volume_get_type())
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#define GST_VOLUME(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VOLUME,GstVolume))
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#define GST_VOLUME_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstVolume))
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#define GST_IS_VOLUME(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VOLUME))
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#define GST_IS_VOLUME_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VOLUME))
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typedef struct _GstVolume GstVolume;
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typedef struct _GstVolumeClass GstVolumeClass;
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typedef enum _GstVolumeFormat GstVolumeFormat;
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enum _GstVolumeFormat {
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GST_VOLUME_FORMAT_INT=1,
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GST_VOLUME_FORMAT_FLOAT
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};
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struct _GstVolume {
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GstElement element;
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GstPad *sinkpad, *srcpad;
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gboolean silent;
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gboolean muted;
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gint16 volume_i;
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gfloat volume_f;
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/* the next three are valid for both int and float */
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GstVolumeFormat format;
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guint rate;
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guint channels;
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/* the next five are valid only for format==GST_VOLUME_FORMAT_INT */
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guint width;
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guint depth;
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guint endianness;
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guint law;
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gboolean is_signed;
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/* the next three are valid only for format==GST_VOLUME_FORMAT_FLOAT */
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const gchar *layout;
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gfloat slope;
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gfloat intercept;
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};
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struct _GstVolumeClass {
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GstElementClass parent_class;
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};
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GType gst_volume_get_type(void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_VOLUME_H__ */
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