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/*
* GStreamer
*
* Copyright 2008 Collabora Ltd
* Copyright 2008 Nokia Corporation
* @author: Olivier Crete <olivier.crete@collabora.co.uk>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef __GST_LIVE_ADDER_H__
#define __GST_LIVE_ADDER_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
G_BEGIN_DECLS
#define GST_TYPE_LIVE_ADDER (gst_live_adder_get_type())
#define GST_LIVE_ADDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LIVE_ADDER,GstLiveAdder))
#define GST_IS_LIVE_ADDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LIVE_ADDER))
#define GST_LIVE_ADDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_LIVE_ADDER,GstLiveAdderClass))
#define GST_IS_LIVE_ADDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_LIVE_ADDER))
#define GST_LIVE_ADDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_LIVE_ADDER,GstLiveAdderClass))
typedef struct _GstLiveAdder GstLiveAdder;
typedef struct _GstLiveAdderClass GstLiveAdderClass;
typedef void (*GstLiveAdderFunction) (gpointer out, gpointer in, guint size);
/**
* GstLiveAdder:
*
* The adder object structure.
*/
struct _GstLiveAdder
{
/*< private >*/
GstElement element;
GstPad *srcpad;
/* pad counter, used for creating unique request pads */
gint padcount;
GList *sinkpads;
GstFlowReturn srcresult;
GstClockID clock_id;
/* the queue is ordered head to tail */
GQueue *buffers;
GCond not_empty_cond;
GstClockTime next_timestamp;
/* the next are valid for both int and float */
GstAudioInfo info;
/* function to add samples */
GstLiveAdderFunction func;
GstClockTime latency_ms;
GstClockTime peer_latency;
gboolean segment_pending;
gboolean playing;
};
struct _GstLiveAdderClass
{
GstElementClass parent_class;
};
GType gst_live_adder_get_type (void);
G_END_DECLS
#endif /* __GST_LIVE_ADDER_H__ */
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