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This uses the tinyalsa library to playback to an ALSA device. Future work can include using the mmap interface. https://bugzilla.gnome.org/show_bug.cgi?id=761230
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* GStreamer
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* Copyright (C) 2016 Centricular Ltd.
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* Author: Arun Raghavan
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __TINYALSASINK_H__
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#define __TINYALSASINK_H__
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#include <tinyalsa/asoundlib.h>
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#include <gst/audio/gstaudiosink.h>
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G_BEGIN_DECLS
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#define GST_TYPE_TINYALSA_SINK \
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(gst_tinyalsa_sink_get_type())
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#define GST_TINYALSA_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TINYALSA_SINK,GstTinyalsaSink))
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#define GST_TINYALSA_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TINYALSA_SINK,GstTinyalsaSinkClass))
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typedef struct _GstTinyalsaSink GstTinyalsaSink;
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typedef struct _GstTinyalsaSinkClass GstTinyalsaSinkClass;
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struct _GstTinyalsaSink {
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GstAudioSink parent;
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int card;
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int device;
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struct pcm *pcm;
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GstCaps *cached_caps; /* for queries made while the device is open */
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};
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struct _GstTinyalsaSinkClass {
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GstAudioSinkClass parent_class;
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};
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GType gst_tinyalsa_sink_get_type (void);
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#endif /* __TINYALSASINK_H__ */
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