mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-09 19:09:41 +00:00
fac1dbab6e
Code cleanups, general improvements, support for the new mixer flags in latest gst-plugins-base. Fixes: #584252 Patch By: Brian Cameron <brian.cameron@sun.com> Patch By: Garrett D'Amore <garrett.damore@sun.com>
153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
/* GStreamer OSS4 mixer on/off switch control
|
|
* Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* A simple ON/OFF 'switch' in gnome-volume-control / GstMixer is represented
|
|
* by a GstMixerTrack with no channels.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst-i18n-plugin.h>
|
|
|
|
#define NO_LEGACY_MIXER
|
|
#include "oss4-mixer-switch.h"
|
|
#include "oss4-soundcard.h"
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (oss4mixer_debug);
|
|
#define GST_CAT_DEFAULT oss4mixer_debug
|
|
|
|
/* GstMixerTrack is a plain GObject, so let's just use the GLib macro here */
|
|
G_DEFINE_TYPE (GstOss4MixerSwitch, gst_oss4_mixer_switch, GST_TYPE_MIXER_TRACK);
|
|
|
|
static void
|
|
gst_oss4_mixer_switch_class_init (GstOss4MixerSwitchClass * klass)
|
|
{
|
|
/* nothing to do here */
|
|
}
|
|
|
|
static void
|
|
gst_oss4_mixer_switch_init (GstOss4MixerSwitch * s)
|
|
{
|
|
/* nothing to do here */
|
|
}
|
|
|
|
gboolean
|
|
gst_oss4_mixer_switch_set (GstOss4MixerSwitch * s, gboolean disabled)
|
|
{
|
|
GstMixerTrack *track;
|
|
int newval;
|
|
|
|
track = GST_MIXER_TRACK (s);
|
|
|
|
newval = disabled ? GST_MIXER_TRACK_MUTE : 0;
|
|
|
|
if (newval == (track->flags & GST_MIXER_TRACK_MUTE)) {
|
|
GST_LOG_OBJECT (s, "switch is already %d, doing nothing", newval);
|
|
return TRUE;
|
|
}
|
|
|
|
if (!gst_oss4_mixer_set_control_val (s->mixer, s->mc, !disabled)) {
|
|
GST_WARNING_OBJECT (s, "could not set switch to %d", !disabled);
|
|
return FALSE;
|
|
}
|
|
|
|
if (disabled) {
|
|
track->flags |= GST_MIXER_TRACK_MUTE;
|
|
} else {
|
|
track->flags &= ~GST_MIXER_TRACK_MUTE;
|
|
}
|
|
|
|
GST_LOG_OBJECT (s, "set switch to %d", newval);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_oss4_mixer_switch_get (GstOss4MixerSwitch * s, gboolean * disabled)
|
|
{
|
|
GstMixerTrack *track;
|
|
int flag;
|
|
int enabled = -1;
|
|
|
|
track = GST_MIXER_TRACK (s);
|
|
|
|
if (!gst_oss4_mixer_get_control_val (s->mixer, s->mc, &enabled)
|
|
|| (enabled < 0)) {
|
|
GST_WARNING_OBJECT (s, "could not get switch state");
|
|
return FALSE;
|
|
}
|
|
|
|
flag = (enabled == 0) ? GST_MIXER_TRACK_MUTE : 0;
|
|
|
|
if (enabled) {
|
|
track->flags &= ~GST_MIXER_TRACK_MUTE;
|
|
} else {
|
|
track->flags |= GST_MIXER_TRACK_MUTE;
|
|
}
|
|
*disabled = (enabled == 0);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GstMixerTrack *
|
|
gst_oss4_mixer_switch_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc)
|
|
{
|
|
GstOss4MixerSwitch *s;
|
|
GstMixerTrack *track;
|
|
int cur = -1;
|
|
|
|
s = g_object_new (GST_TYPE_OSS4_MIXER_SWITCH, "untranslated-label",
|
|
mc->mixext.extname, NULL);
|
|
|
|
s->mixer = mixer;
|
|
s->mc = mc;
|
|
|
|
track = GST_MIXER_TRACK (s);
|
|
|
|
/* caller will set track->label and track->flags */
|
|
|
|
track->num_channels = 0;
|
|
track->min_volume = 0;
|
|
track->max_volume = 0;
|
|
|
|
if (!gst_oss4_mixer_get_control_val (s->mixer, s->mc, &cur) || cur < 0)
|
|
return NULL;
|
|
|
|
if (cur) {
|
|
track->flags &= ~GST_MIXER_TRACK_MUTE;
|
|
} else {
|
|
track->flags |= GST_MIXER_TRACK_MUTE;
|
|
}
|
|
|
|
return track;
|
|
}
|
|
|
|
/* This is called from the watch thread */
|
|
void
|
|
gst_oss4_mixer_switch_process_change_unlocked (GstMixerTrack * track)
|
|
{
|
|
GstOss4MixerSwitch *s = GST_OSS4_MIXER_SWITCH_CAST (track);
|
|
|
|
if (!s->mc->changed)
|
|
return;
|
|
|
|
gst_mixer_mute_toggled (GST_MIXER (s->mixer), track, !s->mc->last_val);
|
|
}
|