diff options
Diffstat (limited to 'gst-libs/gst/mixer/mixer.c')
| -rw-r--r-- | gst-libs/gst/mixer/mixer.c | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/gst-libs/gst/mixer/mixer.c b/gst-libs/gst/mixer/mixer.c deleted file mode 100644 index 158c2ad7..00000000 --- a/gst-libs/gst/mixer/mixer.c +++ /dev/null @@ -1,317 +0,0 @@ -/* GStreamer Mixer - * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> - * - * mixer.c: mixer design virtual class function wrappers - * - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "mixer.h" -#include "mixer-marshal.h" - -enum -{ - SIGNAL_MUTE_TOGGLED, - SIGNAL_RECORD_TOGGLED, - SIGNAL_VOLUME_CHANGED, - SIGNAL_OPTION_CHANGED, - LAST_SIGNAL -}; - -static void gst_mixer_class_init (GstMixerClass * klass); - -static guint gst_mixer_signals[LAST_SIGNAL] = { 0 }; - -GType -gst_mixer_get_type (void) -{ - static GType gst_mixer_type = 0; - - if (!gst_mixer_type) { - static const GTypeInfo gst_mixer_info = { - sizeof (GstMixerClass), - (GBaseInitFunc) gst_mixer_class_init, - NULL, - NULL, - NULL, - NULL, - 0, - 0, - NULL, - }; - - gst_mixer_type = g_type_register_static (G_TYPE_INTERFACE, - "GstMixer", &gst_mixer_info, 0); - g_type_interface_add_prerequisite (gst_mixer_type, - GST_TYPE_IMPLEMENTS_INTERFACE); - } - - return gst_mixer_type; -} - -static void -gst_mixer_class_init (GstMixerClass * klass) -{ - static gboolean initialized = FALSE; - - if (!initialized) { - gst_mixer_signals[SIGNAL_RECORD_TOGGLED] = - g_signal_new ("record-toggled", - GST_TYPE_MIXER, G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (GstMixerClass, record_toggled), - NULL, NULL, - gst_mixer_marshal_VOID__OBJECT_BOOLEAN, G_TYPE_NONE, 2, - GST_TYPE_MIXER_TRACK, G_TYPE_BOOLEAN); - gst_mixer_signals[SIGNAL_MUTE_TOGGLED] = - g_signal_new ("mute-toggled", - GST_TYPE_MIXER, G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (GstMixerClass, mute_toggled), - NULL, NULL, - gst_mixer_marshal_VOID__OBJECT_BOOLEAN, G_TYPE_NONE, 2, - GST_TYPE_MIXER_TRACK, G_TYPE_BOOLEAN); - gst_mixer_signals[SIGNAL_VOLUME_CHANGED] = - g_signal_new ("volume-changed", - GST_TYPE_MIXER, G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (GstMixerClass, volume_changed), - NULL, NULL, - gst_mixer_marshal_VOID__OBJECT_POINTER, G_TYPE_NONE, 2, - GST_TYPE_MIXER_TRACK, G_TYPE_POINTER); - gst_mixer_signals[SIGNAL_OPTION_CHANGED] = - g_signal_new ("option-changed", - GST_TYPE_MIXER, G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (GstMixerClass, option_changed), - NULL, NULL, - gst_mixer_marshal_VOID__OBJECT_STRING, G_TYPE_NONE, 2, - GST_TYPE_MIXER_OPTIONS, G_TYPE_STRING); - - initialized = TRUE; - } - - klass->mixer_type = GST_MIXER_SOFTWARE; - - /* default virtual functions */ - klass->list_tracks = NULL; - klass->set_volume = NULL; - klass->get_volume = NULL; - klass->set_mute = NULL; - klass->set_record = NULL; - klass->set_option = NULL; - klass->get_option = NULL; -} - -/** - * gst_mixer_list_tracks: - * @mixer: the #GstMixer (a #GstElement) to get the tracks from. - * - * Returns a list of available tracks for this mixer/element. Note - * that it is allowed for sink (output) elements to only provide - * the output tracks in this list. Likewise, for sources (inputs), - * it is allowed to only provide input elements in this list. - * - * Returns: A #GList consisting of zero or more #GstMixerTracks. - */ - -const GList * -gst_mixer_list_tracks (GstMixer * mixer) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->list_tracks) { - return klass->list_tracks (mixer); - } - - return NULL; -} - -/** - * gst_mixer_set_volume: - * @mixer: The #GstMixer (a #GstElement) that owns the track. - * @track: The #GstMixerTrack to set the volume on. - * @volumes: an array of integers (of size track->num_channels) - * that gives the wanted volume for each channel in - * this track. - * - * Sets the volume on each channel in a track. Short note about - * naming: a track is defined as one separate stream owned by - * the mixer/element, such as 'Line-in' or 'Microphone'. A - * channel is said to be a mono-stream inside this track. A - * stereo track thus contains two channels. - */ - -void -gst_mixer_set_volume (GstMixer * mixer, GstMixerTrack * track, gint * volumes) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->set_volume) { - klass->set_volume (mixer, track, volumes); - } -} - -/* - * gst_mixer_get_volume: - * @mixer: the #GstMixer (a #GstElement) that owns the track - * @track: the GstMixerTrack to get the volume from. - * @volumes: a pre-allocated array of integers (of size - * track->num_channels) to store the current volume - * of each channel in the given track in. - * - * Get the current volume(s) on the given track. - */ - -void -gst_mixer_get_volume (GstMixer * mixer, GstMixerTrack * track, gint * volumes) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->get_volume) { - klass->get_volume (mixer, track, volumes); - } else { - gint i; - - for (i = 0; i < track->num_channels; i++) { - volumes[i] = 0; - } - } -} - -/** - * gst_mixer_set_mute: - * @mixer: the #GstMixer (a #GstElement) that owns the track. - * @track: the #GstMixerTrack to operate on. - * @mute: a boolean value indicating whether to turn on or off - * muting. - * - * Mutes or unmutes the given channel. To find out whether a - * track is currently muted, use GST_MIXER_TRACK_HAS_FLAG (). - */ - -void -gst_mixer_set_mute (GstMixer * mixer, GstMixerTrack * track, gboolean mute) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->set_mute) { - klass->set_mute (mixer, track, mute); - } -} - -/** - * gst_mixer_set_record: - * @mixer: The #GstMixer (a #GstElement) that owns the track. - * @track: the #GstMixerTrack to operate on. - * @record: a boolean value that indicates whether to turn on - * or off recording. - * - * Enables or disables recording on the given track. Note that - * this is only possible on input tracks, not on output tracks - * (see GST_MIXER_TRACK_HAS_FLAG () and the GST_MIXER_TRACK_INPUT - * flag). - */ - -void -gst_mixer_set_record (GstMixer * mixer, GstMixerTrack * track, gboolean record) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->set_record) { - klass->set_record (mixer, track, record); - } -} - -/** - * gst_mixer_set_option: - * @mixer: The #GstMixer (a #GstElement) that owns the optionlist. - * @opts: The #GstMixerOptions that we operate on. - * @value: The requested new option value. - * - * Sets a name/value option in the mixer to the requested value. - */ - -void -gst_mixer_set_option (GstMixer * mixer, GstMixerOptions * opts, gchar * value) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->set_option) { - klass->set_option (mixer, opts, value); - } -} - -/** - * gst_mixer_get_option: - * @mixer: The #GstMixer (a #GstElement) that owns the optionlist. - * @opts: The #GstMixerOptions that we operate on. - * - * Get the current value of a name/value option in the mixer. - * - * Returns: current value of the name/value option. - */ - -const gchar * -gst_mixer_get_option (GstMixer * mixer, GstMixerOptions * opts) -{ - GstMixerClass *klass = GST_MIXER_GET_CLASS (mixer); - - if (klass->get_option) { - return klass->get_option (mixer, opts); - } - - return NULL; -} - -void -gst_mixer_mute_toggled (GstMixer * mixer, GstMixerTrack * track, gboolean mute) -{ - g_signal_emit (G_OBJECT (mixer), - gst_mixer_signals[SIGNAL_MUTE_TOGGLED], 0, track, mute); - - g_signal_emit_by_name (G_OBJECT (track), "mute_toggled", mute); -} - -void -gst_mixer_record_toggled (GstMixer * mixer, - GstMixerTrack * track, gboolean record) -{ - g_signal_emit (G_OBJECT (mixer), - gst_mixer_signals[SIGNAL_RECORD_TOGGLED], 0, track, record); - - g_signal_emit_by_name (G_OBJECT (track), "record_toggled", record); -} - -void -gst_mixer_volume_changed (GstMixer * mixer, - GstMixerTrack * track, gint * volumes) -{ - g_signal_emit (G_OBJECT (mixer), - gst_mixer_signals[SIGNAL_VOLUME_CHANGED], 0, track, volumes); - - g_signal_emit_by_name (G_OBJECT (track), "volume_changed", volumes); -} - -void -gst_mixer_option_changed (GstMixer * mixer, - GstMixerOptions * opts, gchar * value) -{ - g_signal_emit (G_OBJECT (mixer), - gst_mixer_signals[SIGNAL_OPTION_CHANGED], 0, opts, value); - - g_signal_emit_by_name (G_OBJECT (opts), "value_changed", value); -} |