1 /* GStreamer 2 * 3 * Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>. 4 * Copyright (C) 2009 Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk> 5 * Copyright (C) 2009 Nokia Corporation. All rights reserved. 6 * Contact: Stefan Kost <stefan.kost@nokia.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24 #ifndef __GST_FLAC_PARSE_H__ 25 #define __GST_FLAC_PARSE_H__ 26 27 #include <gst/gst.h> 28 #include <gst/base/gstbaseparse.h> 29 30 G_BEGIN_DECLS 31 32 #define GST_TYPE_FLAC_PARSE (gst_flac_parse_get_type()) 33 #define GST_FLAC_PARSE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FLAC_PARSE,GstFlacParse)) 34 #define GST_FLAC_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FLAC_PARSE,GstFlacParseClass)) 35 #define GST_FLAC_PARSE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_FLAC_PARSE,GstFlacParseClass)) 36 #define GST_IS_FLAC_PARSE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FLAC_PARSE)) 37 #define GST_IS_FLAC_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FLAC_PARSE)) 38 #define GST_FLAC_PARSE_CAST(obj) ((GstFlacParse *)(obj)) 39 40 typedef struct _GstFlacParse GstFlacParse; 41 typedef struct _GstFlacParseClass GstFlacParseClass; 42 43 typedef enum { 44 GST_FLAC_PARSE_STATE_INIT, 45 GST_FLAC_PARSE_STATE_HEADERS, 46 GST_FLAC_PARSE_STATE_GENERATE_HEADERS, 47 GST_FLAC_PARSE_STATE_DATA 48 } GstFlacParseState; 49 50 typedef struct { 51 guint8 type; 52 } GstFlacParseSubFrame; 53 54 struct _GstFlacParse { 55 GstBaseParse parent; 56 57 /* Properties */ 58 gboolean check_frame_checksums; 59 60 GstFlacParseState state; 61 62 gint64 upstream_length; 63 64 /* STREAMINFO content */ 65 guint16 min_blocksize, max_blocksize; 66 guint32 min_framesize, max_framesize; 67 guint32 samplerate; 68 guint8 channels; 69 guint8 bps; 70 guint64 total_samples; 71 72 /* Current frame */ 73 guint64 offset; 74 guint8 blocking_strategy; 75 guint16 block_size; 76 guint64 sample_number; 77 guint64 first_sample_number; 78 gboolean strategy_checked; 79 80 gboolean sent_codec_tag; 81 82 GstTagList *tags; 83 GstToc *toc; 84 85 GList *headers; 86 GstBuffer *seektable; 87 88 gboolean force_variable_block_size; 89 }; 90 91 struct _GstFlacParseClass { 92 GstBaseParseClass parent_class; 93 }; 94 95 GType gst_flac_parse_get_type (void); 96 97 G_END_DECLS 98 99 #endif /* __GST_FLAC_PARSE_H__ */ 100