/* -*- c-basic-offset: 2 -*- * vi:si:et:sw=2:sts=8:ts=8:expandtab * * GStreamer * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> * Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef __GST_VOLUME_H__ #define __GST_VOLUME_H__ #include <gst/gst.h> #include <gst/base/gstbasetransform.h> #include <gst/audio/streamvolume.h> #include <gst/audio/audio.h> #include <gst/audio/gstaudiofilter.h> G_BEGIN_DECLS #define GST_TYPE_VOLUME \ (gst_volume_get_type()) #define GST_VOLUME(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VOLUME,GstVolume)) #define GST_VOLUME_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VOLUME,GstVolumeClass)) #define GST_IS_VOLUME(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VOLUME)) #define GST_IS_VOLUME_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VOLUME)) typedef struct _GstVolume GstVolume; typedef struct _GstVolumeClass GstVolumeClass; /** * GstVolume: * * Opaque data structure. */ struct _GstVolume { GstAudioFilter element; void (*process)(GstVolume*, gpointer, guint); void (*process_controlled)(GstVolume*, gpointer, gdouble *, guint, guint); gboolean mute; gfloat volume; gboolean current_mute; gdouble current_volume; gint current_vol_i32; gint current_vol_i24; /* the _i(nt) values get synchronized with the */ gint current_vol_i16; /* the _i(nt) values get synchronized with the */ gint current_vol_i8; /* the _i(nt) values get synchronized with the */ GList *tracklist; gboolean negotiated; gboolean *mutes; guint mutes_count; gdouble *volumes; guint volumes_count; }; struct _GstVolumeClass { GstAudioFilterClass parent_class; }; GType gst_volume_get_type (void); G_END_DECLS #endif /* __GST_VOLUME_H__ */