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/* GStreamer
* Copyright (C) 2014 Collabora
* Author: Olivier Crete <olivier.crete@collabora.com>
*
* gstaudioaggregator.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_AUDIO_AGGREGATOR_H__
#define __GST_AUDIO_AGGREGATOR_H__
#include <gst/gst.h>
#include <gst/base/gstaggregator.h>
#include <gst/audio/audio.h>
G_BEGIN_DECLS
/*******************************
* GstAudioAggregator Structs *
*******************************/
typedef struct _GstAudioAggregator GstAudioAggregator;
typedef struct _GstAudioAggregatorPrivate GstAudioAggregatorPrivate;
typedef struct _GstAudioAggregatorClass GstAudioAggregatorClass;
/************************
* GstAudioAggregatorPad API *
***********************/
#define GST_TYPE_AUDIO_AGGREGATOR_PAD (gst_audio_aggregator_pad_get_type())
#define GST_AUDIO_AGGREGATOR_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AGGREGATOR_PAD, GstAudioAggregatorPad))
#define GST_AUDIO_AGGREGATOR_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_AGGREGATOR_PAD, GstAudioAggregatorPadClass))
#define GST_AUDIO_AGGREGATOR_PAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_AGGREGATOR_PAD, GstAudioAggregatorPadClass))
#define GST_IS_AUDIO_AGGREGATOR_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AGGREGATOR_PAD))
#define GST_IS_AUDIO_AGGREGATOR_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_AGGREGATOR_PAD))
/****************************
* GstAudioAggregatorPad Structs *
***************************/
typedef struct _GstAudioAggregatorPad GstAudioAggregatorPad;
typedef struct _GstAudioAggregatorPadClass GstAudioAggregatorPadClass;
typedef struct _GstAudioAggregatorPadPrivate GstAudioAggregatorPadPrivate;
/**
* GstAudioAggregatorPad:
* @info: The audio info for this pad set from the incoming caps
*
* The default implementation of GstPad used with #GstAudioAggregator
*
* Since: 1.14
*/
struct _GstAudioAggregatorPad
{
GstAggregatorPad parent;
/*< public >*/
/* read-only, with OBJECT_LOCK */
GstAudioInfo info;
/*< private >*/
GstAudioAggregatorPadPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstAudioAggregatorPadClass:
* @convert_buffer: Convert a buffer from one format to another.
* @update_conversion_info: Called when either the input or output
* formats have changed.
*
* Since: 1.14
*/
struct _GstAudioAggregatorPadClass
{
GstAggregatorPadClass parent_class;
GstBuffer * (* convert_buffer) (GstAudioAggregatorPad * pad,
GstAudioInfo *in_info,
GstAudioInfo *out_info,
GstBuffer * buffer);
void (* update_conversion_info) (GstAudioAggregatorPad *pad);
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE];
};
GST_AUDIO_API
GType gst_audio_aggregator_pad_get_type (void);
#define GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD (gst_audio_aggregator_convert_pad_get_type())
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPad))
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPadClass))
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPadClass))
#define GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD))
#define GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD))
/****************************
* GstAudioAggregatorPad Structs *
***************************/
typedef struct _GstAudioAggregatorConvertPad GstAudioAggregatorConvertPad;
typedef struct _GstAudioAggregatorConvertPadClass GstAudioAggregatorConvertPadClass;
typedef struct _GstAudioAggregatorConvertPadPrivate GstAudioAggregatorConvertPadPrivate;
/**
* GstAudioAggregatorConvertPad:
*
* An implementation of GstPad that can be used with #GstAudioAggregator.
*
* See #GstAudioAggregator for more details.
*
* Since: 1.14
*/
struct _GstAudioAggregatorConvertPad
{
/*< private >*/
GstAudioAggregatorPad parent;
GstAudioAggregatorConvertPadPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstAudioAggregatorConvertPadClass:
*
* Since: 1.14
*/
struct _GstAudioAggregatorConvertPadClass
{
GstAudioAggregatorPadClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GST_AUDIO_API
GType gst_audio_aggregator_convert_pad_get_type (void);
/**************************
* GstAudioAggregator API *
**************************/
#define GST_TYPE_AUDIO_AGGREGATOR (gst_audio_aggregator_get_type())
#define GST_AUDIO_AGGREGATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AGGREGATOR,GstAudioAggregator))
#define GST_AUDIO_AGGREGATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_AGGREGATOR,GstAudioAggregatorClass))
#define GST_AUDIO_AGGREGATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_AGGREGATOR,GstAudioAggregatorClass))
#define GST_IS_AUDIO_AGGREGATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AGGREGATOR))
#define GST_IS_AUDIO_AGGREGATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_AGGREGATOR))
/**
* GstAudioAggregator:
* @current_caps: The caps set by the subclass
*
* GstAudioAggregator object
*
* Since: 1.14
*/
struct _GstAudioAggregator
{
GstAggregator parent;
/*< public >*/
GstCaps *current_caps;
/*< private >*/
GstAudioAggregatorPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstAudioAggregatorClass:
* @create_output_buffer: Create a new output buffer contains num_frames frames.
* @aggregate_one_buffer: Aggregates one input buffer to the output
* buffer. The in_offset and out_offset are in "frames", which is
* the size of a sample times the number of channels. Returns TRUE if
* any non-silence was added to the buffer
*
* Since: 1.14
*/
struct _GstAudioAggregatorClass {
GstAggregatorClass parent_class;
/*< public >*/
GstBuffer * (* create_output_buffer) (GstAudioAggregator * aagg,
guint num_frames);
gboolean (* aggregate_one_buffer) (GstAudioAggregator * aagg,
GstAudioAggregatorPad * pad, GstBuffer * inbuf, guint in_offset,
GstBuffer * outbuf, guint out_offset, guint num_frames);
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE];
};
/*************************
* GstAggregator methods *
************************/
GST_AUDIO_API
GType gst_audio_aggregator_get_type(void);
GST_AUDIO_API
void gst_audio_aggregator_set_sink_caps (GstAudioAggregator * aagg,
GstAudioAggregatorPad * pad,
GstCaps * caps);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioAggregator, gst_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioAggregatorPad, gst_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioAggregatorConvertPad, gst_object_unref)
G_END_DECLS
#endif /* __GST_AUDIO_AGGREGATOR_H__ */
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