diff -r 567bb019e3e3 -r 7e817e7e631c gst_plugins_base/ext/alsa/gstalsasrc.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/ext/alsa/gstalsasrc.h Wed Sep 01 12:16:41 2010 +0100 @@ -0,0 +1,86 @@ +/* GStreamer + * Copyright (C) 2005 Wim Taymans + * + * gstalsasrc.h: + * + * 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. + */ + + +#ifndef __GST_ALSASRC_H__ +#define __GST_ALSASRC_H__ + +#include +#include "gstalsa.h" +#include "gstalsamixer.h" + +G_BEGIN_DECLS + +#define GST_TYPE_ALSA_SRC (gst_alsasrc_get_type()) +#define GST_ALSA_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALSA_SRC,GstAlsaSrc)) +#define GST_ALSA_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALSA_SRC,GstAlsaSrcClass)) +#define GST_IS_ALSA_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALSA_SRC)) +#define GST_IS_ALSA_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALSA_SRC)) +#define GST_ALSA_SRC_CAST(obj) ((GstAlsaSrc *)(obj)) + +#define GST_ALSA_SRC_GET_LOCK(obj) (GST_ALSA_SRC_CAST (obj)->alsa_lock) +#define GST_ALSA_SRC_LOCK(obj) (g_mutex_lock (GST_ALSA_SRC_GET_LOCK (obj))) +#define GST_ALSA_SRC_UNLOCK(obj) (g_mutex_unlock (GST_ALSA_SRC_GET_LOCK (obj))) + +typedef struct _GstAlsaSrc GstAlsaSrc; +typedef struct _GstAlsaSrcClass GstAlsaSrcClass; + +/** + * GstAlsaSrc: + * + * Opaque data structure + */ +struct _GstAlsaSrc { + GstAudioSrc src; + + gchar *device; + + snd_pcm_t *handle; + snd_pcm_hw_params_t *hwparams; + snd_pcm_sw_params_t *swparams; + + GstCaps *cached_caps; + + snd_pcm_access_t access; + snd_pcm_format_t format; + guint rate; + guint channels; + gint bytes_per_sample; + + guint buffer_time; + guint period_time; + snd_pcm_uframes_t buffer_size; + snd_pcm_uframes_t period_size; + + GstAlsaMixer *mixer; + + GMutex *alsa_lock; +}; + +struct _GstAlsaSrcClass { + GstAudioSrcClass parent_class; +}; + +GType gst_alsasrc_get_type(void); + +G_END_DECLS + +#endif /* __GST_ALSASRC_H__ */