gstreamer/gst/audioparsers/gstaacparse.h
2011-04-08 18:07:17 +01:00

109 lines
3.3 KiB
C

/* GStreamer AAC parser
* Copyright (C) 2008 Nokia Corporation. All rights reserved.
*
* Contact: 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_AAC_PARSE_H__
#define __GST_AAC_PARSE_H__
#include <gst/gst.h>
#include <gst/base/gstbaseparse.h>
G_BEGIN_DECLS
#define GST_TYPE_AAC_PARSE \
(gst_aac_parse_get_type())
#define GST_AAC_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AAC_PARSE, GstAacParse))
#define GST_AAC_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AAC_PARSE, GstAacParseClass))
#define GST_IS_AAC_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AAC_PARSE))
#define GST_IS_AAC_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AAC_PARSE))
/**
* GstAacHeaderType:
* @DSPAAC_HEADER_NOT_PARSED: Header not parsed yet.
* @DSPAAC_HEADER_UNKNOWN: Unknown (not recognized) header.
* @DSPAAC_HEADER_ADIF: ADIF header found.
* @DSPAAC_HEADER_ADTS: ADTS header found.
* @DSPAAC_HEADER_NONE: Raw stream, no header.
*
* Type header enumeration set in #header_type.
*/
typedef enum {
DSPAAC_HEADER_NOT_PARSED,
DSPAAC_HEADER_UNKNOWN,
DSPAAC_HEADER_ADIF,
DSPAAC_HEADER_ADTS,
DSPAAC_HEADER_NONE
} GstAacHeaderType;
typedef struct _GstAacParse GstAacParse;
typedef struct _GstAacParseClass GstAacParseClass;
/**
* GstAacParse:
* @element: the parent element.
* @object_type: AAC object type of the stream.
* @bitrate: Current media bitrate.
* @sample_rate: Current media samplerate.
* @channels: Current media channel count.
* @frames_per_sec: FPS value of the current stream.
* @header_type: #GstAacHeaderType indicating the current stream type.
* @framecount: The amount of frames that has been processed this far.
* @bytecount: The amount of bytes that has been processed this far.
* @sync: Tells whether the parser is in sync (a.k.a. not searching for header)
* @eos: End-of-Stream indicator. Set when EOS event arrives.
* @duration: Duration of the current stream.
* @ts: Current stream timestamp.
*
* The opaque GstAacParse data structure.
*/
struct _GstAacParse {
GstBaseParse element;
/* Stream type -related info */
gint object_type;
gint bitrate;
gint sample_rate;
gint channels;
gint mpegversion;
GstAacHeaderType header_type;
};
/**
* GstAacParseClass:
* @parent_class: Element parent class.
*
* The opaque GstAacParseClass data structure.
*/
struct _GstAacParseClass {
GstBaseParseClass parent_class;
};
GType gst_aac_parse_get_type (void);
G_END_DECLS
#endif /* __GST_AAC_PARSE_H__ */