From ba0a1f60ed7874077eee375ee358234b04c5a268 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= Date: Mon, 29 Sep 2008 08:26:54 +0000 Subject: 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. --- gst/flacparse/gstbitreader.h | 99 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 gst/flacparse/gstbitreader.h (limited to 'gst/flacparse/gstbitreader.h') diff --git a/gst/flacparse/gstbitreader.h b/gst/flacparse/gstbitreader.h new file mode 100644 index 00000000..5dc16a30 --- /dev/null +++ b/gst/flacparse/gstbitreader.h @@ -0,0 +1,99 @@ +/* GStreamer + * + * Copyright (C) 2008 Sebastian Dröge . + * + * 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_BIT_READER_H__ +#define __GST_BIT_READER_H__ + +#include + +G_BEGIN_DECLS + +/** + * GstBitReader: + * @data: Data from which the bit reader will read + * @size: Size of @data in bytes + * @byte: Current byte position + * @bit: Bit position in the current byte + * + * A bit reader instance. + */ +typedef struct { + const guint8 *data; + guint size; + + guint byte; /* Byte position */ + guint bit; /* Bit position in the current byte */ +} GstBitReader; + +GstBitReader * gst_bit_reader_new (const guint8 *data, guint size); +GstBitReader * gst_bit_reader_new_from_buffer (const GstBuffer *buffer); +void gst_bit_reader_free (GstBitReader *reader); + +void gst_bit_reader_init (GstBitReader *reader, const guint8 *data, guint size); +void gst_bit_reader_init_from_buffer (GstBitReader *reader, const GstBuffer *buffer); + +gboolean gst_bit_reader_set_pos (GstBitReader *reader, guint pos); + +guint gst_bit_reader_get_pos (const GstBitReader *reader); +guint gst_bit_reader_get_remaining (const GstBitReader *reader); + +gboolean gst_bit_reader_skip (GstBitReader *reader, guint nbits); +gboolean gst_bit_reader_skip_to_byte (GstBitReader *reader); + +gboolean gst_bit_reader_get_bits_uint8 (GstBitReader *reader, guint8 *val, guint nbits); +gboolean gst_bit_reader_get_bits_uint16 (GstBitReader *reader, guint16 *val, guint nbits); +gboolean gst_bit_reader_get_bits_uint32 (GstBitReader *reader, guint32 *val, guint nbits); +gboolean gst_bit_reader_get_bits_uint64 (GstBitReader *reader, guint64 *val, guint nbits); + +gboolean gst_bit_reader_peek_bits_uint8 (const GstBitReader *reader, guint8 *val, guint nbits); +gboolean gst_bit_reader_peek_bits_uint16 (const GstBitReader *reader, guint16 *val, guint nbits); +gboolean gst_bit_reader_peek_bits_uint32 (const GstBitReader *reader, guint32 *val, guint nbits); +gboolean gst_bit_reader_peek_bits_uint64 (const GstBitReader *reader, guint64 *val, guint nbits); + +/** + * GST_BIT_READER_INIT: + * @data: Data from which the #GstBitReader should read + * @size: Size of @data in bytes + * + * A #GstBitReader must be initialized with this macro, before it can be + * used. This macro can used be to initialize a variable, but it cannot + * be assigned to a variable. In that case you have to use + * gst_bit_reader_init(). + * + * Since: 0.10.22 + */ +#define GST_BIT_READER_INIT(data, size) {data, size, 0, 0} + +/** + * GST_BIT_READER_INIT_FROM_BUFFER: + * @buffer: Buffer from which the #GstBitReader should read + * + * A #GstBitReader must be initialized with this macro, before it can be + * used. This macro can used be to initialize a variable, but it cannot + * be assigned to a variable. In that case you have to use + * gst_bit_reader_init(). + * + * Since: 0.10.22 + */ +#define GST_BIT_READER_INIT_FROM_BUFFER(buffer) {GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), 0, 0} + +G_END_DECLS + +#endif /* __GST_BIT_READER_H__ */ -- cgit v1.2.1