/* GStreamer MPEG audio parser * Copyright (C) 2006-2007 Jan Schmidt <thaytan@mad.scientist.com> * Copyright (C) 2010 Mark Nauwelaerts <mnauw users sf net> * Copyright (C) 2010 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_MPEG_AUDIO_PARSE_H__ #define __GST_MPEG_AUDIO_PARSE_H__ #include <gst/gst.h> #include <gst/base/gstbaseparse.h> G_BEGIN_DECLS #define GST_TYPE_MPEG_AUDIO_PARSE \ (gst_mpeg_audio_parse_get_type()) #define GST_MPEG_AUDIO_PARSE(obj) \ (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_MPEG_AUDIO_PARSE, GstMpegAudioParse)) #define GST_MPEG_AUDIO_PARSE_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_MPEG_AUDIO_PARSE, GstMpegAudioParseClass)) #define GST_IS_MPEG_AUDIO_PARSE(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_MPEG_AUDIO_PARSE)) #define GST_IS_MPEG_AUDIO_PARSE_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_MPEG_AUDIO_PARSE)) typedef struct _GstMpegAudioParse GstMpegAudioParse; typedef struct _GstMpegAudioParseClass GstMpegAudioParseClass; /** * GstMpegAudioParse: * * The opaque GstMpegAudioParse object */ struct _GstMpegAudioParse { GstBaseParse baseparse; /*< private >*/ gint rate; gint channels; gint layer; gint version; GstClockTime max_bitreservoir; /* samples per frame */ gint spf; gint freerate; gboolean sent_codec_tag; guint last_posted_bitrate; gint last_posted_crc, last_crc; guint last_posted_channel_mode, last_mode; /* Bitrate from non-vbr headers */ guint32 hdr_bitrate; /* Xing info */ guint32 xing_flags; guint32 xing_frames; GstClockTime xing_total_time; guint32 xing_bytes; /* percent -> filepos mapping */ guchar xing_seek_table[100]; /* filepos -> percent mapping */ guint16 xing_seek_table_inverse[256]; guint32 xing_vbr_scale; guint xing_bitrate; /* VBRI info */ guint32 vbri_frames; GstClockTime vbri_total_time; guint32 vbri_bytes; guint vbri_bitrate; guint vbri_seek_points; guint32 *vbri_seek_table; gboolean vbri_valid; /* LAME info */ guint32 encoder_delay; guint32 encoder_padding; }; /** * GstMpegAudioParseClass: * @parent_class: Element parent class. * * The opaque GstMpegAudioParseClass data structure. */ struct _GstMpegAudioParseClass { GstBaseParseClass baseparse_class; }; GType gst_mpeg_audio_parse_get_type (void); G_END_DECLS #endif /* __GST_MPEG_AUDIO_PARSE_H__ */