gstreamer/subprojects/gst-plugins-bad/gst/midi/midiparse.h

94 lines
2.3 KiB
C

/*
* gstmidiparse - midiparse plugin for gstreamer
*
* Copyright 2007 Wouter Paesen <wouter@blue-gate.be>
* Copyright 2013 Wim Taymans <wim.taymans@gmail.be>
*
* 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_MIDIPARSE_H__
#define __GST_MIDIPARSE_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <midiparse.h>
G_BEGIN_DECLS
#define GST_TYPE_MIDI_PARSE \
(gst_midi_parse_get_type())
#define GST_MIDI_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MIDI_PARSE,GstMidiParse))
#define GST_MIDI_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MIDI_PARSE,GstMidiParseClass))
#define GST_IS_MIDI_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MIDI_PARSE))
#define GST_IS_MIDI_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MIDI_PARSE))
typedef struct _GstMidiParse GstMidiParse;
typedef struct _GstMidiParseClass GstMidiParseClass;
typedef enum {
GST_MIDI_PARSE_STATE_LOAD,
GST_MIDI_PARSE_STATE_PARSE,
GST_MIDI_PARSE_STATE_PLAY
} GstMidiParseState;
struct _GstMidiParse
{
GstElement element;
GstPad *sinkpad, *srcpad;
gboolean have_group_id;
guint group_id;
/* input stream properties */
GstMidiParseState state;
guint tempo;
guint16 ntracks;
guint16 division;
GList *tracks;
guint track_count;
guint64 offset;
GstAdapter *adapter;
guint8 *data;
/* output data */
gboolean discont;
GstSegment segment;
gboolean segment_pending;
guint32 seqnum;
guint64 pulse;
};
struct _GstMidiParseClass
{
GstElementClass parent_class;
};
GType gst_midi_parse_get_type (void);
GST_ELEMENT_REGISTER_DECLARE (midiparse);
G_END_DECLS
#endif /* __GST_MIDI_PARSE_H__ */