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53f654150b
Use a state machine to keep track of the current state. Add chain function and event function on the sinkpad. Remove some unused code.
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
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* gstwildmidi - wildmidi plugin for gstreamer
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*
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* Copyright 2007 Wouter Paesen <wouter@blue-gate.be>
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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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* Wrapper element for libtimidity. This element works in pull
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* based mode because that's essentially how libwildmidi works.
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* We create a libwildmidi stream that operates on the srcpad.
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* The sinkpad is in pull mode.
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*/
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#ifndef __GST_WILDMIDI_H__
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#define __GST_WILDMIDI_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <wildmidi_lib.h>
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G_BEGIN_DECLS
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#define GST_TYPE_WILDMIDI \
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(gst_wildmidi_get_type())
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#define GST_WILDMIDI(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WILDMIDI,GstWildmidi))
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#define GST_WILDMIDI_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WILDMIDI,GstWildmidiClass))
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#define GST_IS_WILDMIDI(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WILDMIDI))
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#define GST_IS_WILDMIDI_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WILDMIDI))
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typedef struct _GstWildmidi GstWildmidi;
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typedef struct _GstWildmidiClass GstWildmidiClass;
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typedef enum {
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GST_WILDMIDI_STATE_LOAD,
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GST_WILDMIDI_STATE_PARSE,
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GST_WILDMIDI_STATE_PLAY
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} GstWildmidiState;
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struct _GstWildmidi
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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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/* input stream properties */
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GstWildmidiState state;
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GstAdapter *adapter;
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midi *song;
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guint64 offset;
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/* output data */
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gboolean o_new_segment, o_seek;
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GstSegment o_segment[1];
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gint64 o_len;
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/* format of the stream */
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gint64 bytes_per_frame;
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GstClockTime time_per_frame;
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/* options */
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gboolean accurate_seek;
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/* wildmidi settings */
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gboolean high_quality;
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gboolean linear_volume;
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};
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struct _GstWildmidiClass
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{
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GstElementClass parent_class;
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};
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GType gst_wildmidi_get_type (void);
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G_END_DECLS
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#endif /* __GST_WILDMIDI_H__ */
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