Add FLAC parser, based on GstBaseParse. Also add the bit and byte reader that will be added to libgstbase later.

Original commit message from CVS:
* configure.ac:
* gst/flacparse/Makefile.am:
* gst/flacparse/gstbaseparse.c: (gst_base_parse_get_type),
(gst_base_parse_base_init), (gst_base_parse_base_finalize),
(gst_base_parse_finalize), (gst_base_parse_class_init),
(gst_base_parse_init), (gst_base_parse_check_frame),
(gst_base_parse_parse_frame), (gst_base_parse_bytepos_to_time),
(gst_base_parse_sink_event), (gst_base_parse_sink_eventfunc),
(gst_base_parse_src_event), (gst_base_parse_src_eventfunc),
(gst_base_parse_is_seekable), (gst_base_parse_push_buffer),
(gst_base_parse_handle_and_push_buffer), (gst_base_parse_drain),
(gst_base_parse_chain), (gst_base_parse_pull_range),
(gst_base_parse_loop), (gst_base_parse_sink_activate),
(gst_base_parse_activate), (gst_base_parse_sink_activate_push),
(gst_base_parse_sink_activate_pull), (gst_base_parse_set_duration),
(gst_base_parse_set_min_frame_size),
(gst_base_parse_get_querytypes), (gst_base_parse_query),
(gst_base_parse_handle_seek), (gst_base_parse_sink_setcaps):
* gst/flacparse/gstbaseparse.h:
* gst/flacparse/gstbitreader.c: (gst_bit_reader_new),
(gst_bit_reader_new_from_buffer), (gst_bit_reader_free),
(gst_bit_reader_init), (gst_bit_reader_init_from_buffer),
(gst_bit_reader_set_pos), (gst_bit_reader_get_pos),
(gst_bit_reader_get_remaining), (gst_bit_reader_skip),
(gst_bit_reader_skip_to_byte):
* gst/flacparse/gstbitreader.h:
* gst/flacparse/gstbytereader.c: (GDOUBLE_SWAP_LE_BE),
(GFLOAT_SWAP_LE_BE), (gst_byte_reader_new),
(gst_byte_reader_new_from_buffer), (gst_byte_reader_free),
(gst_byte_reader_init), (gst_byte_reader_init_from_buffer),
(gst_byte_reader_set_pos), (gst_byte_reader_get_pos),
(gst_byte_reader_get_remaining), (gst_byte_reader_skip),
(gst_byte_reader_get_uint8), (gst_byte_reader_get_int8),
(gst_byte_reader_peek_uint8), (gst_byte_reader_peek_int8),
(gst_byte_reader_get_uint24_le), (gst_byte_reader_get_uint24_be),
(gst_byte_reader_get_int24_le), (gst_byte_reader_get_int24_be),
(gst_byte_reader_peek_uint24_le), (gst_byte_reader_peek_uint24_be),
(gst_byte_reader_peek_int24_le), (gst_byte_reader_peek_int24_be):
* gst/flacparse/gstbytereader.h:
* gst/flacparse/gstflac.c: (plugin_init):
* gst/flacparse/gstflacparse.c: (gst_flac_parse_base_init),
(gst_flac_parse_class_init), (gst_flac_parse_init),
(gst_flac_parse_finalize), (gst_flac_parse_start),
(gst_flac_parse_stop), (gst_flac_parse_get_frame_size),
(gst_flac_parse_check_valid_frame),
(gst_flac_parse_handle_streaminfo),
(gst_flac_parse_handle_vorbiscomment),
(gst_flac_parse_handle_picture), (_value_array_append_buffer),
(gst_flac_parse_handle_headers), (gst_flac_parse_generate_headers),
(gst_flac_parse_parse_frame):
* gst/flacparse/gstflacparse.h:
Add FLAC parser, based on GstBaseParse. Also add the bit and byte reader
that will be added to libgstbase later.
The FLAC parser is currently not 100% bug free and fails to get the
correct frame size for some frames in some streams.

1 files changed, 87 insertions, 0 deletions

diff --git a/gst/flacparse/gstflacparse.h b/gst/flacparse/gstflacparse.h
new file mode 100644
index 00000000..66171dcf
--- /dev/null
+++ b/gst/flacparse/gstflacparse.h
@@ -0,0 +1,87 @@
+/* GStreamer
+ *
+ * Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
+ *
+ * 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_FLAC_PARSE_H__
+#define __GST_FLAC_PARSE_H__
+
+#include <gst/gst.h>
+#include "gstbaseparse.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_FLAC_PARSE		   (gst_base_parse_get_type())
+#define GST_FLAC_PARSE(obj)		   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FLAC_PARSE,GstFlacParse))
+#define GST_FLAC_PARSE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FLAC_PARSE,GstFlacParseClass))
+#define GST_FLAC_PARSE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_FLAC_PARSE,GstFlacParseClass))
+#define GST_IS_FLAC_PARSE(obj)	   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FLAC_PARSE))
+#define GST_IS_FLAC_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FLAC_PARSE))
+#define GST_FLAC_PARSE_CAST(obj)	((GstFlacParse *)(obj))
+
+typedef struct _GstFlacParse GstFlacParse;
+typedef struct _GstFlacParseClass GstFlacParseClass;
+
+typedef enum {
+  GST_FLAC_PARSE_STATE_INIT,
+  GST_FLAC_PARSE_STATE_HEADERS,
+  GST_FLAC_PARSE_STATE_GENERATE_HEADERS,
+  GST_FLAC_PARSE_STATE_DATA
+} GstFlacParseState;
+
+typedef struct {
+  guint8 type;
+} GstFlacParseSubFrame;
+
+struct _GstFlacParse {
+  GstBaseParse parent;
+
+  GstFlacParseState state;
+
+  gint64 upstream_length;
+
+  /* STREAMINFO content */
+  guint16 min_blocksize, max_blocksize;
+  guint32 min_framesize, max_framesize;
+  guint32 samplerate;
+  guint8 channels;
+  guint8 bps;
+  guint64 total_samples;
+
+  guint requested_frame_size;
+
+  /* Current frame */
+  guint64 offset;
+  guint8 blocking_strategy;
+  guint16 block_size;
+  guint64 sample_number;
+
+  GstTagList *tags;
+
+  GList *headers;
+};
+
+struct _GstFlacParseClass {
+  GstBaseParseClass parent_class;
+};
+
+GType gst_flac_parse_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_FLAC_PARSE_H__ */