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Diffstat (limited to 'gst/flacparse/gstbytereader.h')
| -rw-r--r-- | gst/flacparse/gstbytereader.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/gst/flacparse/gstbytereader.h b/gst/flacparse/gstbytereader.h new file mode 100644 index 00000000..28534c00 --- /dev/null +++ b/gst/flacparse/gstbytereader.h @@ -0,0 +1,134 @@ +/* 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_BYTE_READER_H__ +#define __GST_BYTE_READER_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + +/** + * GstByteReader: + * @data: Data from which the bit reader will read + * @size: Size of @data in bytes + * @byte: Current byte position + * + * A byte reader instance. + */ +typedef struct { + const guint8 *data; + guint size; + + guint byte; /* Byte position */ +} GstByteReader; + +GstByteReader * gst_byte_reader_new (const guint8 *data, guint size); +GstByteReader * gst_byte_reader_new_from_buffer (const GstBuffer *buffer); +void gst_byte_reader_free (GstByteReader *reader); + +void gst_byte_reader_init (GstByteReader *reader, const guint8 *data, guint size); +void gst_byte_reader_init_from_buffer (GstByteReader *reader, const GstBuffer *buffer); + +gboolean gst_byte_reader_set_pos (GstByteReader *reader, guint pos); + +guint gst_byte_reader_get_pos (const GstByteReader *reader); +guint gst_byte_reader_get_remaining (const GstByteReader *reader); + +gboolean gst_byte_reader_skip (GstByteReader *reader, guint nbytes); + +gboolean gst_byte_reader_get_uint8 (GstByteReader *reader, guint8 *val); +gboolean gst_byte_reader_get_int8 (GstByteReader *reader, gint8 *val); +gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader, guint16 *val); +gboolean gst_byte_reader_get_int16_le (GstByteReader *reader, gint16 *val); +gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader, guint16 *val); +gboolean gst_byte_reader_get_int16_be (GstByteReader *reader, gint16 *val); +gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_get_int24_le (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_get_int24_be (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_get_int32_le (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_get_int32_be (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader, guint64 *val); +gboolean gst_byte_reader_get_int64_le (GstByteReader *reader, gint64 *val); +gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader, guint64 *val); +gboolean gst_byte_reader_get_int64_be (GstByteReader *reader, gint64 *val); + +gboolean gst_byte_reader_peek_uint8 (GstByteReader *reader, guint8 *val); +gboolean gst_byte_reader_peek_int8 (GstByteReader *reader, gint8 *val); +gboolean gst_byte_reader_peek_uint16_le (GstByteReader *reader, guint16 *val); +gboolean gst_byte_reader_peek_int16_le (GstByteReader *reader, gint16 *val); +gboolean gst_byte_reader_peek_uint16_be (GstByteReader *reader, guint16 *val); +gboolean gst_byte_reader_peek_int16_be (GstByteReader *reader, gint16 *val); +gboolean gst_byte_reader_peek_uint24_le (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_peek_int24_le (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_peek_uint24_be (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_peek_int24_be (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_peek_uint32_le (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_peek_int32_le (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_peek_uint32_be (GstByteReader *reader, guint32 *val); +gboolean gst_byte_reader_peek_int32_be (GstByteReader *reader, gint32 *val); +gboolean gst_byte_reader_peek_uint64_le (GstByteReader *reader, guint64 *val); +gboolean gst_byte_reader_peek_int64_le (GstByteReader *reader, gint64 *val); +gboolean gst_byte_reader_peek_uint64_be (GstByteReader *reader, guint64 *val); +gboolean gst_byte_reader_peek_int64_be (GstByteReader *reader, gint64 *val); + +gboolean gst_byte_reader_get_float32_le (GstByteReader *reader, gfloat *val); +gboolean gst_byte_reader_get_float32_be (GstByteReader *reader, gfloat *val); +gboolean gst_byte_reader_get_float64_le (GstByteReader *reader, gdouble *val); +gboolean gst_byte_reader_get_float64_be (GstByteReader *reader, gdouble *val); + +gboolean gst_byte_reader_peek_float32_le (GstByteReader *reader, gfloat *val); +gboolean gst_byte_reader_peek_float32_be (GstByteReader *reader, gfloat *val); +gboolean gst_byte_reader_peek_float64_le (GstByteReader *reader, gdouble *val); +gboolean gst_byte_reader_peek_float64_be (GstByteReader *reader, gdouble *val); + +/** + * GST_BYTE_READER_INIT: + * @data: Data from which the #GstByteReader should read + * @size: Size of @data in bytes + * + * A #GstByteReader 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_byte_reader_init(). + * + * Since: 0.10.22 + */ +#define GST_BYTE_READER_INIT(data, size) {data, size, 0} + +/** + * GST_BYTE_READER_INIT_FROM_BUFFER: + * @buffer: Buffer from which the #GstByteReader should read + * + * A #GstByteReader 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_byte_reader_init(). + * + * Since: 0.10.22 + */ +#define GST_BYTE_READER_INIT_FROM_BUFFER(buffer) {GST_BUFFER_DATA (buffer), GST_BUFFER_SIZE (buffer), 0} + +G_END_DECLS + +#endif /* __GST_BYTE_READER_H__ */ |