--- /dev/null
+/* GStreamer Mixer
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * mixer.h: mixer interface design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_MIXER_H__
+#define __GST_MIXER_H__
+
+#include <gst/gst.h>
+#include <gst/interfaces/mixeroptions.h>
+#include <gst/interfaces/mixertrack.h>
+#include <gst/interfaces/interfaces-enumtypes.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_MIXER \
+ (gst_mixer_get_type ())
+#define GST_MIXER(obj) \
+ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MIXER, GstMixer))
+#define GST_MIXER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MIXER, GstMixerClass))
+#define GST_IS_MIXER(obj) \
+ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MIXER))
+#define GST_IS_MIXER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MIXER))
+#define GST_MIXER_GET_CLASS(inst) \
+ (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_MIXER, GstMixerClass))
+
+#define GST_MIXER_TYPE(klass) (klass->mixer_type)
+
+typedef struct _GstMixer GstMixer;
+typedef struct _GstMixerClass GstMixerClass;
+
+typedef enum
+{
+ GST_MIXER_HARDWARE,
+ GST_MIXER_SOFTWARE
+} GstMixerType;
+
+/**
+ * GstMixerMessageType:
+ * @GST_MIXER_MESSAGE_INVALID: Not a GstMixer message
+ * @GST_MIXER_MESSAGE_MUTE_TOGGLED: A mute-toggled GstMixer message
+ * @GST_MIXER_MESSAGE_RECORD_TOGGLED: A record-toggled GstMixer message
+ * @GST_MIXER_MESSAGE_VOLUME_CHANGED: A volume-changed GstMixer message
+ * @GST_MIXER_MESSAGE_OPTION_CHANGED: An option-changed GstMixer message
+ * @GST_MIXER_MESSAGE_OPTIONS_LIST_CHANGED: An options-list-changed
+ * GstMixer message, posted when the list of available options for a
+ * GstMixerOptions object has changed (Since: 0.10.18)
+ * @GST_MIXER_MESSAGE_MIXER_CHANGED: A mixer-changed GstMixer message, posted
+ * when the list of available mixer tracks has changed. The application
+ * should re-build its interface in this case (Since: 0.10.18)
+ *
+ * An enumeration for the type of a GstMixer message received on the bus
+ *
+ * Since: 0.10.14
+ */
+typedef enum
+{
+ GST_MIXER_MESSAGE_INVALID,
+ GST_MIXER_MESSAGE_MUTE_TOGGLED,
+ GST_MIXER_MESSAGE_RECORD_TOGGLED,
+ GST_MIXER_MESSAGE_VOLUME_CHANGED,
+ GST_MIXER_MESSAGE_OPTION_CHANGED,
+ GST_MIXER_MESSAGE_OPTIONS_LIST_CHANGED,
+ GST_MIXER_MESSAGE_MIXER_CHANGED
+} GstMixerMessageType;
+
+/**
+ * GstMixerFlags:
+ * @GST_MIXER_FLAG_NONE: No flags
+ * @GST_MIXER_FLAG_AUTO_NOTIFICATIONS: The mixer implementation automatically
+ * sends notification messages.
+ * @GST_MIXER_FLAG_HAS_WHITELIST: The mixer implementation flags tracks that
+ * should be displayed by default (whitelisted). Since: 0.10.23
+ * @GST_MIXER_FLAG_GROUPING: The mixer implementation will leave some controls
+ * marked without either input or output. Controls marked as input or
+ * output should be grouped with input & output sliders, even if they
+ * are options or bare switches. Since: 0.10.23
+ *
+ * Flags indicating which optional features are supported by a mixer
+ * implementation.
+ *
+ * Since: 0.10.14
+ */
+typedef enum
+{
+ GST_MIXER_FLAG_NONE = 0,
+ GST_MIXER_FLAG_AUTO_NOTIFICATIONS = (1<<0),
+ GST_MIXER_FLAG_HAS_WHITELIST = (1<<1),
+ GST_MIXER_FLAG_GROUPING = (1<<2),
+} GstMixerFlags;
+
+struct _GstMixerClass {
+ GTypeInterface klass;
+
+ GstMixerType mixer_type;
+
+ /* virtual functions */
+ const GList * (* list_tracks) (GstMixer *mixer);
+
+ void (* set_volume) (GstMixer *mixer,
+ GstMixerTrack *track,
+ gint *volumes);
+ void (* get_volume) (GstMixer *mixer,
+ GstMixerTrack *track,
+ gint *volumes);
+
+ void (* set_mute) (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean mute);
+ void (* set_record) (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean record);
+#ifndef GST_DISABLE_DEPRECATED
+ /* signals (deprecated) */
+ void (* mute_toggled) (GstMixer *mixer,
+ GstMixerTrack *channel,
+ gboolean mute);
+ void (* record_toggled) (GstMixer *mixer,
+ GstMixerTrack *channel,
+ gboolean record);
+ void (* volume_changed) (GstMixer *mixer,
+ GstMixerTrack *channel,
+ gint *volumes);
+#else
+ gpointer padding1[3];
+#endif /* not GST_DISABLE_DEPRECATED */
+
+ void (* set_option) (GstMixer *mixer,
+ GstMixerOptions *opts,
+ gchar *value);
+ const gchar * (* get_option) (GstMixer *mixer,
+ GstMixerOptions *opts);
+
+#ifndef GST_DISABLE_DEPRECATED
+ void (* option_changed) (GstMixer *mixer,
+ GstMixerOptions *opts,
+ gchar *option);
+#else
+ gpointer padding2;
+#endif /* not GST_DISABLE_DEPRECATED */
+
+ GstMixerFlags (* get_mixer_flags) (GstMixer *mixer);
+
+ /*< private >*/
+ gpointer _gst_reserved[GST_PADDING-1];
+};
+
+GType gst_mixer_get_type (void);
+
+/* virtual class function wrappers */
+const GList * gst_mixer_list_tracks (GstMixer *mixer);
+void gst_mixer_set_volume (GstMixer *mixer,
+ GstMixerTrack *track,
+ gint *volumes);
+void gst_mixer_get_volume (GstMixer *mixer,
+ GstMixerTrack *track,
+ gint *volumes);
+void gst_mixer_set_mute (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean mute);
+void gst_mixer_set_record (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean record);
+void gst_mixer_set_option (GstMixer *mixer,
+ GstMixerOptions *opts,
+ gchar *value);
+const gchar * gst_mixer_get_option (GstMixer *mixer,
+ GstMixerOptions *opts);
+
+/* trigger bus messages */
+void gst_mixer_mute_toggled (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean mute);
+void gst_mixer_record_toggled (GstMixer *mixer,
+ GstMixerTrack *track,
+ gboolean record);
+void gst_mixer_volume_changed (GstMixer *mixer,
+ GstMixerTrack *track,
+ gint *volumes);
+void gst_mixer_option_changed (GstMixer *mixer,
+ GstMixerOptions *opts,
+ const gchar *value);
+
+void gst_mixer_mixer_changed (GstMixer *mixer);
+
+void gst_mixer_options_list_changed (GstMixer *mixer,
+ GstMixerOptions *opts);
+
+GstMixerType gst_mixer_get_mixer_type (GstMixer *mixer);
+
+GstMixerFlags gst_mixer_get_mixer_flags (GstMixer *mixer);
+
+/* Functions for recognising and parsing GstMixerMessages on the bus */
+GstMixerMessageType gst_mixer_message_get_type (GstMessage *message);
+void gst_mixer_message_parse_mute_toggled (GstMessage *message,
+ GstMixerTrack **track,
+ gboolean *mute);
+void gst_mixer_message_parse_record_toggled (GstMessage *message,
+ GstMixerTrack **track,
+ gboolean *record);
+void gst_mixer_message_parse_volume_changed (GstMessage *message,
+ GstMixerTrack **track,
+ gint **volumes,
+ gint *num_channels);
+void gst_mixer_message_parse_option_changed (GstMessage *message,
+ GstMixerOptions **options,
+ const gchar **value);
+void gst_mixer_message_parse_options_list_changed (GstMessage *message,
+ GstMixerOptions **options);
+
+G_END_DECLS
+
+#endif /* __GST_MIXER_H__ */
projects / mafwsubrenderer / blobdiff