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b377c58e43
Original commit message from CVS: * docs/libs/gstreamer-libs-docs.sgml: * docs/libs/gstreamer-libs-sections.txt: * libs/gst/base/Makefile.am: * libs/gst/base/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): * libs/gst/base/gstbitreader.h: * libs/gst/base/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): * libs/gst/base/gstbytereader.h: * tests/check/Makefile.am: * tests/check/libs/bitreader.c: (GST_START_TEST), (gst_bit_reader_suite): * tests/check/libs/bytereader.c: (GST_START_TEST), (gst_byte_reader_suite): Add bit reader and byte reader classes, including documentation and an extensive unit test suite. Fixes bug #553554.
134 lines
6.1 KiB
C
134 lines
6.1 KiB
C
/* GStreamer
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*
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* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BYTE_READER_H__
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#define __GST_BYTE_READER_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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/**
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* GstByteReader:
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* @data: Data from which the bit reader will read
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* @size: Size of @data in bytes
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* @byte: Current byte position
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*
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* A byte reader instance.
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*/
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typedef struct {
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const guint8 *data;
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guint size;
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guint byte; /* Byte position */
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} GstByteReader;
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GstByteReader * gst_byte_reader_new (const guint8 *data, guint size);
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GstByteReader * gst_byte_reader_new_from_buffer (const GstBuffer *buffer);
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void gst_byte_reader_free (GstByteReader *reader);
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void gst_byte_reader_init (GstByteReader *reader, const guint8 *data, guint size);
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void gst_byte_reader_init_from_buffer (GstByteReader *reader, const GstBuffer *buffer);
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gboolean gst_byte_reader_set_pos (GstByteReader *reader, guint pos);
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guint gst_byte_reader_get_pos (const GstByteReader *reader);
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guint gst_byte_reader_get_remaining (const GstByteReader *reader);
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gboolean gst_byte_reader_skip (GstByteReader *reader, guint nbytes);
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gboolean gst_byte_reader_get_uint8 (GstByteReader *reader, guint8 *val);
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gboolean gst_byte_reader_get_int8 (GstByteReader *reader, gint8 *val);
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gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader, guint16 *val);
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gboolean gst_byte_reader_get_int16_le (GstByteReader *reader, gint16 *val);
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gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader, guint16 *val);
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gboolean gst_byte_reader_get_int16_be (GstByteReader *reader, gint16 *val);
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gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_get_int24_le (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_get_int24_be (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_get_int32_le (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_get_int32_be (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader, guint64 *val);
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gboolean gst_byte_reader_get_int64_le (GstByteReader *reader, gint64 *val);
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gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader, guint64 *val);
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gboolean gst_byte_reader_get_int64_be (GstByteReader *reader, gint64 *val);
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gboolean gst_byte_reader_peek_uint8 (GstByteReader *reader, guint8 *val);
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gboolean gst_byte_reader_peek_int8 (GstByteReader *reader, gint8 *val);
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gboolean gst_byte_reader_peek_uint16_le (GstByteReader *reader, guint16 *val);
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gboolean gst_byte_reader_peek_int16_le (GstByteReader *reader, gint16 *val);
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gboolean gst_byte_reader_peek_uint16_be (GstByteReader *reader, guint16 *val);
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gboolean gst_byte_reader_peek_int16_be (GstByteReader *reader, gint16 *val);
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gboolean gst_byte_reader_peek_uint24_le (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_peek_int24_le (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_peek_uint24_be (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_peek_int24_be (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_peek_uint32_le (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_peek_int32_le (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_peek_uint32_be (GstByteReader *reader, guint32 *val);
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gboolean gst_byte_reader_peek_int32_be (GstByteReader *reader, gint32 *val);
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gboolean gst_byte_reader_peek_uint64_le (GstByteReader *reader, guint64 *val);
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gboolean gst_byte_reader_peek_int64_le (GstByteReader *reader, gint64 *val);
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gboolean gst_byte_reader_peek_uint64_be (GstByteReader *reader, guint64 *val);
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gboolean gst_byte_reader_peek_int64_be (GstByteReader *reader, gint64 *val);
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gboolean gst_byte_reader_get_float32_le (GstByteReader *reader, gfloat *val);
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gboolean gst_byte_reader_get_float32_be (GstByteReader *reader, gfloat *val);
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gboolean gst_byte_reader_get_float64_le (GstByteReader *reader, gdouble *val);
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gboolean gst_byte_reader_get_float64_be (GstByteReader *reader, gdouble *val);
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gboolean gst_byte_reader_peek_float32_le (GstByteReader *reader, gfloat *val);
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gboolean gst_byte_reader_peek_float32_be (GstByteReader *reader, gfloat *val);
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gboolean gst_byte_reader_peek_float64_le (GstByteReader *reader, gdouble *val);
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gboolean gst_byte_reader_peek_float64_be (GstByteReader *reader, gdouble *val);
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/**
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* GST_BYTE_READER_INIT:
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* @data: Data from which the #GstByteReader should read
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* @size: Size of @data in bytes
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*
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* A #GstByteReader must be initialized with this macro, before it can be
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* used. This macro can used be to initialize a variable, but it cannot
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* be assigned to a variable. In that case you have to use
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* gst_byte_reader_init().
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*
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* Since: 0.10.22
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*/
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#define GST_BYTE_READER_INIT(data, size) {data, size, 0}
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/**
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* GST_BYTE_READER_INIT_FROM_BUFFER:
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* @buffer: Buffer from which the #GstByteReader should read
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*
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* A #GstByteReader must be initialized with this macro, before it can be
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* used. This macro can used be to initialize a variable, but it cannot
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* be assigned to a variable. In that case you have to use
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* gst_byte_reader_init().
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*
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* Since: 0.10.22
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*/
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#define GST_BYTE_READER_INIT_FROM_BUFFER(buffer) {GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), 0}
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G_END_DECLS
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#endif /* __GST_BYTE_READER_H__ */
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