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98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2005,2008 Sun Microsystems, Inc.,
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* Brian Cameron <brian.cameron@sun.com>
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*
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* gstsunaudiomixer.c: mixer interface implementation for OSS
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/audioio.h>
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#include <gst/gst-i18n-plugin.h>
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#include "gstsunaudiomixertrack.h"
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#define MASK_BIT_IS_SET(mask, bit) \
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(mask & (1 << bit))
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G_DEFINE_TYPE (GstSunAudioMixerTrack, gst_sunaudiomixer_track,
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GST_TYPE_MIXER_TRACK)
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static void
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gst_sunaudiomixer_track_class_init (GstSunAudioMixerTrackClass * klass)
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{
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/* nop */
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}
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static void
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gst_sunaudiomixer_track_init (GstSunAudioMixerTrack * track)
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{
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track->gain = 0;
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track->balance = AUDIO_MID_BALANCE;
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track->track_num = 0;
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}
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GstMixerTrack *
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gst_sunaudiomixer_track_new (GstSunAudioTrackType track_num,
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gint max_chans, gint flags)
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{
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const gchar *labels[] = { N_("Volume"), N_("Gain"), N_("Monitor") };
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GstSunAudioMixerTrack *sunaudiotrack;
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GstMixerTrack *track;
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GObjectClass *klass;
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const gchar *untranslated_label;
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if ((guint) track_num < G_N_ELEMENTS (labels))
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untranslated_label = labels[track_num];
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else
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untranslated_label = NULL;
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/* FIXME: remove this check once we depend on -base >= 0.10.12.1 */
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klass = G_OBJECT_CLASS (g_type_class_ref (GST_TYPE_SUNAUDIO_MIXER_TRACK));
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if (g_object_class_find_property (klass, "untranslated-label")) {
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sunaudiotrack = g_object_new (GST_TYPE_SUNAUDIO_MIXER_TRACK,
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"untranslated-label", untranslated_label, NULL);
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} else {
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sunaudiotrack = g_object_new (GST_TYPE_SUNAUDIO_MIXER_TRACK, NULL);
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}
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g_type_class_unref (klass);
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track = GST_MIXER_TRACK (sunaudiotrack);
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track->label = g_strdup (_(untranslated_label));
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track->num_channels = max_chans;
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track->flags = flags;
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track->min_volume = 0;
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track->max_volume = 255;
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sunaudiotrack->track_num = track_num;
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sunaudiotrack->gain = (0 & 0xff);
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sunaudiotrack->balance = AUDIO_MID_BALANCE;
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return track;
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}
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