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85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstalsasrc.h:
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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_ALSASRC_H__
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#define __GST_ALSASRC_H__
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#include <gst/audio/gstaudiosrc.h>
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#include "gstalsa.h"
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G_BEGIN_DECLS
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#define GST_TYPE_ALSA_SRC (gst_alsasrc_get_type())
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#define GST_ALSA_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALSA_SRC,GstAlsaSrc))
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#define GST_ALSA_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALSA_SRC,GstAlsaSrcClass))
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#define GST_IS_ALSA_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALSA_SRC))
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#define GST_IS_ALSA_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALSA_SRC))
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#define GST_ALSA_SRC_CAST(obj) ((GstAlsaSrc *)(obj))
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#define GST_ALSA_SRC_GET_LOCK(obj) (GST_ALSA_SRC_CAST (obj)->alsa_lock)
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#define GST_ALSA_SRC_LOCK(obj) (g_mutex_lock (GST_ALSA_SRC_GET_LOCK (obj)))
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#define GST_ALSA_SRC_UNLOCK(obj) (g_mutex_unlock (GST_ALSA_SRC_GET_LOCK (obj)))
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typedef struct _GstAlsaSrc GstAlsaSrc;
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typedef struct _GstAlsaSrcClass GstAlsaSrcClass;
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/**
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* GstAlsaSrc:
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*
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* Opaque data structure
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*/
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struct _GstAlsaSrc {
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GstAudioSrc src;
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gchar *device;
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snd_pcm_t *handle;
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snd_pcm_hw_params_t *hwparams;
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snd_pcm_sw_params_t *swparams;
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GstCaps *cached_caps;
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snd_pcm_access_t access;
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snd_pcm_format_t format;
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guint rate;
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guint channels;
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gint bpf;
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gboolean driver_timestamps;
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GstClockTime first_alsa_ts;
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guint buffer_time;
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guint period_time;
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snd_pcm_uframes_t buffer_size;
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snd_pcm_uframes_t period_size;
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GMutex *alsa_lock;
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};
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struct _GstAlsaSrcClass {
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GstAudioSrcClass parent_class;
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};
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GType gst_alsasrc_get_type(void);
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G_END_DECLS
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#endif /* __GST_ALSASRC_H__ */
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