gstreamer/sys/sunaudio/gstsunaudiomixertrack.c

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/*
* GStreamer
* Copyright (C) 2005 Brian Cameron <brian.cameron@sun.com>
*
* gstsunaudiomixer.c: mixer interface implementation for OSS
*
* 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 <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <gst/gst-i18n-plugin.h>
#include "gstsunaudiomixertrack.h"
#define MIXER_DEVICES 3
#define MASK_BIT_IS_SET(mask, bit) \
(mask & (1 << bit))
G_DEFINE_TYPE (GstSunAudioMixerTrack, gst_sunaudiomixer_track,
GST_TYPE_MIXER_TRACK);
static void
gst_sunaudiomixer_track_class_init (GstSunAudioMixerTrackClass * klass)
{
/* nop */
}
static void
gst_sunaudiomixer_track_init (GstSunAudioMixerTrack * track)
{
track->vol = 0;
track->track_num = 0;
}
static const gchar **labels = NULL;
static void
fill_labels (void)
{
int i;
struct
{
gchar *given, *wanted;
}
cases[] = {
{
"Vol ", N_("Volume")}
, {
"Gain ", N_("Gain")}
, {
"Mon ", N_("Monitor")}
, {
NULL, NULL}
};
labels = g_malloc (sizeof (gchar *) * MIXER_DEVICES);
for (i = 0; i < MIXER_DEVICES; i++) {
labels[i] = g_strdup (cases[i].wanted);
}
}
GstMixerTrack *
gst_sunaudiomixer_track_new (gint track_num, gint max_chans, gint flags)
{
GstSunAudioMixerTrack *sunaudiotrack;
GstMixerTrack *track;
if (!labels)
fill_labels ();
sunaudiotrack = g_object_new (GST_TYPE_SUNAUDIO_MIXER_TRACK, NULL);
track = GST_MIXER_TRACK (sunaudiotrack);
track->label = g_strdup (labels[track_num]);
track->num_channels = max_chans;
track->flags = flags;
track->min_volume = 0;
track->max_volume = 100;
sunaudiotrack->track_num = track_num;
sunaudiotrack->vol = (0 & 0xff);
return track;
}