From aa97e4d4981d61808a558c5ab36be6d3bcc2c4f6 Mon Sep 17 00:00:00 2001 From: Dave Chapman Date: Wed, 16 Feb 2005 19:33:19 +0000 Subject: Initial import of libFLAC from flac-1.1.2.tar.gz git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5983 a1c6a512-1295-4272-9138-f99709370657 --- apps/codecs/libFLAC/include/private/bitbuffer.h | 159 ++++++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 apps/codecs/libFLAC/include/private/bitbuffer.h (limited to 'apps/codecs/libFLAC/include/private/bitbuffer.h') diff --git a/apps/codecs/libFLAC/include/private/bitbuffer.h b/apps/codecs/libFLAC/include/private/bitbuffer.h new file mode 100644 index 0000000000..4ce5957fde --- /dev/null +++ b/apps/codecs/libFLAC/include/private/bitbuffer.h @@ -0,0 +1,159 @@ +/* libFLAC - Free Lossless Audio Codec library + * Copyright (C) 2000,2001,2002,2003,2004,2005 Josh Coalson + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of the Xiph.org Foundation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef FLAC__PRIVATE__BITBUFFER_H +#define FLAC__PRIVATE__BITBUFFER_H + +#include /* for FILE */ +#include "FLAC/ordinals.h" + +/* @@@ This should be configurable. Valid values are currently 8 and 32. */ +/* @@@ WATCHOUT! do not use 32 with a little endian system yet. */ +#define FLAC__BITS_PER_BLURB 8 + +#if FLAC__BITS_PER_BLURB == 8 +typedef FLAC__byte FLAC__blurb; +#elif FLAC__BITS_PER_BLURB == 32 +typedef FLAC__uint32 FLAC__blurb; +#else +/* ERROR, only sizes of 8 and 32 are supported */ +#endif + +/* + * opaque structure definition + */ +struct FLAC__BitBuffer; +typedef struct FLAC__BitBuffer FLAC__BitBuffer; + +/* + * construction, deletion, initialization, cloning functions + */ +FLAC__BitBuffer *FLAC__bitbuffer_new(); +void FLAC__bitbuffer_delete(FLAC__BitBuffer *bb); +FLAC__bool FLAC__bitbuffer_init(FLAC__BitBuffer *bb); +FLAC__bool FLAC__bitbuffer_init_from(FLAC__BitBuffer *bb, const FLAC__byte buffer[], unsigned bytes); +FLAC__bool FLAC__bitbuffer_concatenate_aligned(FLAC__BitBuffer *dest, const FLAC__BitBuffer *src); +void FLAC__bitbuffer_free(FLAC__BitBuffer *bb); /* does not 'free(buffer)' */ +FLAC__bool FLAC__bitbuffer_clear(FLAC__BitBuffer *bb); +FLAC__bool FLAC__bitbuffer_clone(FLAC__BitBuffer *dest, const FLAC__BitBuffer *src); + +/* + * CRC functions + */ +void FLAC__bitbuffer_reset_read_crc16(FLAC__BitBuffer *bb, FLAC__uint16 seed); +FLAC__uint16 FLAC__bitbuffer_get_read_crc16(FLAC__BitBuffer *bb); +FLAC__uint16 FLAC__bitbuffer_get_write_crc16(const FLAC__BitBuffer *bb); +FLAC__byte FLAC__bitbuffer_get_write_crc8(const FLAC__BitBuffer *bb); + +/* + * info functions + */ +FLAC__bool FLAC__bitbuffer_is_byte_aligned(const FLAC__BitBuffer *bb); +FLAC__bool FLAC__bitbuffer_is_consumed_byte_aligned(const FLAC__BitBuffer *bb); +unsigned FLAC__bitbuffer_bits_left_for_byte_alignment(const FLAC__BitBuffer *bb); +unsigned FLAC__bitbuffer_get_input_bytes_unconsumed(const FLAC__BitBuffer *bb); /* do not call unless byte-aligned */ + +/* + * direct buffer access + */ +void FLAC__bitbuffer_get_buffer(FLAC__BitBuffer *bb, const FLAC__byte **buffer, unsigned *bytes); +void FLAC__bitbuffer_release_buffer(FLAC__BitBuffer *bb); + +/* + * write functions + */ +FLAC__bool FLAC__bitbuffer_write_zeroes(FLAC__BitBuffer *bb, unsigned bits); +FLAC__bool FLAC__bitbuffer_write_raw_uint32(FLAC__BitBuffer *bb, FLAC__uint32 val, unsigned bits); +FLAC__bool FLAC__bitbuffer_write_raw_int32(FLAC__BitBuffer *bb, FLAC__int32 val, unsigned bits); +FLAC__bool FLAC__bitbuffer_write_raw_uint64(FLAC__BitBuffer *bb, FLAC__uint64 val, unsigned bits); +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_write_raw_int64(FLAC__BitBuffer *bb, FLAC__int64 val, unsigned bits); +#endif +FLAC__bool FLAC__bitbuffer_write_raw_uint32_little_endian(FLAC__BitBuffer *bb, FLAC__uint32 val); /*only for bits=32*/ +FLAC__bool FLAC__bitbuffer_write_byte_block(FLAC__BitBuffer *bb, const FLAC__byte vals[], unsigned nvals); +FLAC__bool FLAC__bitbuffer_write_unary_unsigned(FLAC__BitBuffer *bb, unsigned val); +unsigned FLAC__bitbuffer_rice_bits(int val, unsigned parameter); +#if 0 /* UNUSED */ +unsigned FLAC__bitbuffer_golomb_bits_signed(int val, unsigned parameter); +unsigned FLAC__bitbuffer_golomb_bits_unsigned(unsigned val, unsigned parameter); +#endif +#ifdef FLAC__SYMMETRIC_RICE +FLAC__bool FLAC__bitbuffer_write_symmetric_rice_signed(FLAC__BitBuffer *bb, int val, unsigned parameter); +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_write_symmetric_rice_signed_guarded(FLAC__BitBuffer *bb, int val, unsigned parameter, unsigned max_bits, FLAC__bool *overflow); +#endif +FLAC__bool FLAC__bitbuffer_write_symmetric_rice_signed_escape(FLAC__BitBuffer *bb, int val, unsigned parameter); +#endif +FLAC__bool FLAC__bitbuffer_write_rice_signed(FLAC__BitBuffer *bb, int val, unsigned parameter); +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_write_rice_signed_guarded(FLAC__BitBuffer *bb, int val, unsigned parameter, unsigned max_bits, FLAC__bool *overflow); +#endif +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_write_golomb_signed(FLAC__BitBuffer *bb, int val, unsigned parameter); +FLAC__bool FLAC__bitbuffer_write_golomb_signed_guarded(FLAC__BitBuffer *bb, int val, unsigned parameter, unsigned max_bits, FLAC__bool *overflow); +FLAC__bool FLAC__bitbuffer_write_golomb_unsigned(FLAC__BitBuffer *bb, unsigned val, unsigned parameter); +FLAC__bool FLAC__bitbuffer_write_golomb_unsigned_guarded(FLAC__BitBuffer *bb, unsigned val, unsigned parameter, unsigned max_bits, FLAC__bool *overflow); +#endif +FLAC__bool FLAC__bitbuffer_write_utf8_uint32(FLAC__BitBuffer *bb, FLAC__uint32 val); +FLAC__bool FLAC__bitbuffer_write_utf8_uint64(FLAC__BitBuffer *bb, FLAC__uint64 val); +FLAC__bool FLAC__bitbuffer_zero_pad_to_byte_boundary(FLAC__BitBuffer *bb); + +/* + * read functions + */ +FLAC__bool FLAC__bitbuffer_peek_bit(FLAC__BitBuffer *bb, unsigned *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_bit(FLAC__BitBuffer *bb, unsigned *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_bit_to_uint32(FLAC__BitBuffer *bb, FLAC__uint32 *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_bit_to_uint64(FLAC__BitBuffer *bb, FLAC__uint64 *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_raw_uint32(FLAC__BitBuffer *bb, FLAC__uint32 *val, const unsigned bits, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_raw_int32(FLAC__BitBuffer *bb, FLAC__int32 *val, const unsigned bits, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_raw_uint64(FLAC__BitBuffer *bb, FLAC__uint64 *val, const unsigned bits, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_read_raw_int64(FLAC__BitBuffer *bb, FLAC__int64 *val, const unsigned bits, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#endif +FLAC__bool FLAC__bitbuffer_read_raw_uint32_little_endian(FLAC__BitBuffer *bb, FLAC__uint32 *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); /*only for bits=32*/ +FLAC__bool FLAC__bitbuffer_skip_bits_no_crc(FLAC__BitBuffer *bb, unsigned bits, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); /* WATCHOUT: does not CRC the skipped data! */ /*@@@@ add to unit tests */ +FLAC__bool FLAC__bitbuffer_read_byte_block_aligned_no_crc(FLAC__BitBuffer *bb, FLAC__byte *val, unsigned nvals, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); /* val may be 0 to skip bytes instead of reading them */ /* WATCHOUT: does not CRC the read data! */ +FLAC__bool FLAC__bitbuffer_read_unary_unsigned(FLAC__BitBuffer *bb, unsigned *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#ifdef FLAC__SYMMETRIC_RICE +FLAC__bool FLAC__bitbuffer_read_symmetric_rice_signed(FLAC__BitBuffer *bb, int *val, unsigned parameter, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#endif +FLAC__bool FLAC__bitbuffer_read_rice_signed(FLAC__BitBuffer *bb, int *val, unsigned parameter, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_rice_signed_block(FLAC__BitBuffer *bb, int vals[], unsigned nvals, unsigned parameter, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#if 0 /* UNUSED */ +FLAC__bool FLAC__bitbuffer_read_golomb_signed(FLAC__BitBuffer *bb, int *val, unsigned parameter, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +FLAC__bool FLAC__bitbuffer_read_golomb_unsigned(FLAC__BitBuffer *bb, unsigned *val, unsigned parameter, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data); +#endif +FLAC__bool FLAC__bitbuffer_read_utf8_uint32(FLAC__BitBuffer *bb, FLAC__uint32 *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data, FLAC__byte *raw, unsigned *rawlen); +FLAC__bool FLAC__bitbuffer_read_utf8_uint64(FLAC__BitBuffer *bb, FLAC__uint64 *val, FLAC__bool (*read_callback)(FLAC__byte buffer[], unsigned *bytes, void *client_data), void *client_data, FLAC__byte *raw, unsigned *rawlen); +void FLAC__bitbuffer_dump(const FLAC__BitBuffer *bb, FILE *out); + +#endif -- cgit v1.2.3