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124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
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* Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2009-2010 Chris Robinson <chris.kcat@gmail.com>
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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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#ifndef __GST_OPENALSINK_H__
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#define __GST_OPENALSINK_H__
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#include <gst/gst.h>
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#include <gst/audio/gstaudiosink.h>
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#include <gst/audio/multichannel.h>
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#ifdef _WIN32
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#include <al.h>
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#include <alc.h>
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#include <alext.h>
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#elif defined(__APPLE__)
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#include <OpenAL/al.h>
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#include <OpenAL/alc.h>
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#include <OpenAL/alext.h>
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#else
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <AL/alext.h>
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#endif
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G_BEGIN_DECLS
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#define GST_TYPE_OPENAL_SINK (gst_openal_sink_get_type())
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#define GST_OPENAL_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENAL_SINK,GstOpenALSink))
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#define GST_OPENAL_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENAL_SINK,GstOpenALSinkClass))
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#define GST_IS_OPENAL_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENAL_SINK))
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#define GST_IS_OPENAL_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENAL_SINK))
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#if 1
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#define GST_ALC_ERROR(Device) ("ALC error: %s", alcGetString((Device), alcGetError((Device))))
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#else
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#define GST_ALC_ERROR(Device) ("ALC error: 0x%x", alcGetError((Device)))
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#endif
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typedef struct _GstOpenALSink GstOpenALSink;
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typedef struct _GstOpenALSinkClass GstOpenALSinkClass;
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#define GST_OPENAL_SINK_CAST(obj) ((GstOpenALSink*)obj)
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#define GST_OPENAL_SINK_GET_LOCK(obj) (GST_OPENAL_SINK_CAST(obj)->openal_lock)
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#define GST_OPENAL_SINK_LOCK(obj) (g_mutex_lock(GST_OPENAL_SINK_GET_LOCK(obj)))
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#define GST_OPENAL_SINK_UNLOCK(obj) (g_mutex_unlock(GST_OPENAL_SINK_GET_LOCK(obj)))
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struct _GstOpenALSink {
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GstAudioSink sink;
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gchar *devname;
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/* When set, we don't own device */
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ALCdevice *custom_dev;
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/* When set, we don't own device or context */
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ALCcontext *custom_ctx;
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/* When set, we don't own sID */
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ALuint custom_sID;
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ALCdevice *device;
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ALCcontext *context;
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ALuint sID;
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ALuint bID_idx;
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ALuint bID_count;
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ALuint *bIDs;
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ALuint bID_length;
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ALenum format;
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ALuint srate;
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ALuint bytes_per_sample;
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ALboolean write_reset;
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GstCaps *probed_caps;
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GMutex *openal_lock;
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};
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struct _GstOpenALSinkClass {
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GstAudioSinkClass parent_class;
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};
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GType gst_openal_sink_get_type(void);
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define GST_S16_NE GST_S16_LE
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#define GST_FLOAT32_NE GST_FLOAT32_LE
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#define GST_FLOAT64_NE GST_FLOAT64_LE
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#else
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#define GST_S16_NE GST_S16_BE
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#define GST_FLOAT32_NE GST_FLOAT32_BE
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#define GST_FLOAT64_NE GST_FLOAT64_BE
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#endif
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#define OPENAL_MIN_RATE 8000
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#define OPENAL_MAX_RATE 192000
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G_END_DECLS
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#endif /* __GST_OPENALSINK_H__ */
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