gstreamer/ext/alsa/gstalsamixertrack.c
Ronald S. Bultje 8c1e1212d6 ALSA mixer track label internationalization (#154054).
Original commit message from CVS:
Reviewd by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
* ext/alsa/gstalsamixer.c: (gst_alsa_mixer_build_list):
* ext/alsa/gstalsamixertrack.c: (gst_alsa_mixer_track_new):
* ext/alsa/gstalsamixertrack.h:
* po/POTFILES.in:
ALSA mixer track label internationalization (#154054).
2004-10-25 15:58:35 +00:00

165 lines
4.5 KiB
C

/* ALSA mixer track implementation.
* Copyright (C) 2003 Leif Johnson <leif@ambient.2y.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst-i18n-plugin.h>
#include "gstalsamixertrack.h"
static void gst_alsa_mixer_track_init (GstAlsaMixerTrack * alsa_track);
static void gst_alsa_mixer_track_class_init (gpointer g_class,
gpointer class_data);
static GstMixerTrackClass *parent_class = NULL;
GType
gst_alsa_mixer_track_get_type (void)
{
static GType track_type = 0;
if (!track_type) {
static const GTypeInfo track_info = {
sizeof (GstAlsaMixerTrackClass),
NULL,
NULL,
gst_alsa_mixer_track_class_init,
NULL,
NULL,
sizeof (GstAlsaMixerTrack),
0,
(GInstanceInitFunc) gst_alsa_mixer_track_init,
};
track_type =
g_type_register_static (GST_TYPE_MIXER_TRACK, "GstAlsaMixerTrack",
&track_info, 0);
}
return track_type;
}
static void
gst_alsa_mixer_track_class_init (gpointer g_class, gpointer class_data)
{
if (parent_class == NULL)
parent_class = g_type_class_ref (GST_TYPE_MIXER_TRACK);
}
static void
gst_alsa_mixer_track_init (GstAlsaMixerTrack * alsa_track)
{
}
GstMixerTrack *
gst_alsa_mixer_track_new (snd_mixer_elem_t * element,
gint num, gint track_num, gint channels, gint flags, gint alsa_flags)
{
gint i;
long min = 0, max = 0;
struct
{
gchar *orig, *trans;
} alsa_track_labels[] = {
{
"Master", _("Master")}, {
"Bass", _("Bass")}, {
"Treble", _("Treble")}, {
"PCM", _("PCM")}, {
"Synth", _("Synth")}, {
"Line", _("Line-in")}, {
"CD", _("CD")}, {
"Mic", _("Microphone")}, {
"PC Speaker", _("PC Speaker")}, {
"Playback", _("Playback")}, {
"Capture", _("Capture")}, {
NULL, NULL}
};
GstMixerTrack *track = g_object_new (GST_ALSA_MIXER_TRACK_TYPE, NULL);
GstAlsaMixerTrack *alsa_track = (GstAlsaMixerTrack *) track;
/* set basic information */
if (num == 0)
track->label = g_strdup (snd_mixer_selem_get_name (element));
else
track->label = g_strdup_printf ("%s %d",
snd_mixer_selem_get_name (element), num + 1);
i = 0;
while (alsa_track_labels[i].orig != NULL) {
if (!g_utf8_collate (snd_mixer_selem_get_name (element),
alsa_track_labels[i].orig)) {
g_free (track->label);
if (num == 0)
track->label = g_strdup (alsa_track_labels[i].trans);
else
track->label = g_strdup_printf ("%s %d",
alsa_track_labels[i].trans, num);
break;
}
i++;
}
track->num_channels = channels;
track->flags = flags;
alsa_track->element = element;
alsa_track->alsa_flags = alsa_flags;
alsa_track->track_num = track_num;
/* set volume information */
if (channels) {
if (alsa_flags & GST_ALSA_MIXER_TRACK_PLAYBACK) {
snd_mixer_selem_get_playback_volume_range (element, &min, &max);
} else if (alsa_flags & GST_ALSA_MIXER_TRACK_CAPTURE) {
snd_mixer_selem_get_capture_volume_range (element, &min, &max);
}
}
track->min_volume = (gint) min;
track->max_volume = (gint) max;
for (i = 0; i < channels; i++) {
long tmp = 0;
if (alsa_flags & GST_ALSA_MIXER_TRACK_PLAYBACK) {
snd_mixer_selem_get_playback_volume (element, i, &tmp);
} else if (alsa_flags & GST_ALSA_MIXER_TRACK_CAPTURE) {
snd_mixer_selem_get_capture_volume (element, i, &tmp);
}
alsa_track->volumes[i] = (gint) tmp;
}
if (snd_mixer_selem_has_playback_switch (element)) {
int val = 1;
snd_mixer_selem_get_playback_switch (element, 0, &val);
if (!val)
track->flags |= GST_MIXER_TRACK_MUTE;
}
if (flags & GST_MIXER_TRACK_INPUT) {
int val = 0;
snd_mixer_selem_get_capture_switch (element, 0, &val);
if (val)
track->flags |= GST_MIXER_TRACK_RECORD;
}
return track;
}