mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-27 16:55:05 +00:00
91d4abceaa
Some muxers (eg, qtmux) only support raw AAC, so this allows linking an encoder that outputs ADTS only to those muxers. The conversion is simple (omit the first 7 or 9 bytes of the frame), but has to be done in pre_push instead of handle_frame as 1.0 does not seem to allow skipping bytes there as 0.10 used to. Other conversions are not supported (yet).
101 lines
2.7 KiB
C
101 lines
2.7 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, 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_LOAS: LOAS 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_LOAS,
|
|
DSPAAC_HEADER_NONE
|
|
} GstAacHeaderType;
|
|
|
|
|
|
typedef struct _GstAacParse GstAacParse;
|
|
typedef struct _GstAacParseClass GstAacParseClass;
|
|
|
|
/**
|
|
* GstAacParse:
|
|
*
|
|
* 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;
|
|
gint frame_samples;
|
|
|
|
GstAacHeaderType header_type;
|
|
GstAacHeaderType output_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__ */
|