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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2006> Nokia Corporation, Stefan Kost <stefan.kost@nokia.com>.
*
* 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_WAVPARSE_H__
#define __GST_WAVPARSE_H__
#include <gst/gst.h>
#include "gst/riff/riff-ids.h"
#include "gst/riff/riff-read.h"
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_WAVPARSE \
(gst_wavparse_get_type())
#define GST_WAVPARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPARSE,GstWavParse))
#define GST_WAVPARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPARSE,GstWavParseClass))
#define GST_IS_WAVPARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPARSE))
#define GST_IS_WAVPARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPARSE))
typedef enum {
GST_WAVPARSE_START,
GST_WAVPARSE_HEADER,
GST_WAVPARSE_DATA
} GstWavParseState;
typedef struct _GstWavParse GstWavParse;
typedef struct _GstWavParseClass GstWavParseClass;
/**
* GstWavParse:
*
* Opaque data structure.
*/
struct _GstWavParse {
GstElement parent;
/* pads */
GstPad *sinkpad,*srcpad;
/* for delayed source pad creation for when
* we have the first chunk of data and know
* the format for sure */
GstCaps *caps;
GstTagList *tags;
GstEvent *close_segment;
GstEvent *start_segment;
/* WAVE decoding state */
GstWavParseState state;
/* format of audio, see defines below */
gint format;
/* useful audio data */
guint16 depth;
guint32 rate;
guint16 channels;
guint16 blockalign;
guint16 width;
guint32 av_bps;
guint32 fact;
/* real bps used or 0 when no bitrate is known */
guint32 bps;
gboolean vbr;
guint bytes_per_sample;
/* position in data part */
guint64 offset;
guint64 end_offset;
guint64 dataleft;
/* offset/length of data part */
guint64 datastart;
guint64 datasize;
/* pending seek */
GstEvent *seek_event;
/* For streaming */
GstAdapter *adapter;
gboolean got_fmt;
gboolean streaming;
/* configured segment, start/stop expressed in time */
GstSegment segment;
gboolean segment_running;
/* for late pad configuration */
gboolean first;
/* discont after seek */
gboolean discont;
};
struct _GstWavParseClass {
GstElementClass parent_class;
};
GType gst_wavparse_get_type(void);
G_END_DECLS
#endif /* __GST_WAVPARSE_H__ */
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