mirror of
https://codeberg.org/ashley/poke.git
synced 2025-06-10 14:23:02 -04:00
add alac source code - part 3 :^
This commit is contained in:
parent
8f45e2eca2
commit
a15b2d6068
3 changed files with 1094 additions and 0 deletions
104
alac/codec/ALACBitUtilities.h
Normal file
104
alac/codec/ALACBitUtilities.h
Normal file
|
@ -0,0 +1,104 @@
|
|||
/*
|
||||
* Copyright (c) 2011 Apple Inc. All rights reserved.
|
||||
*
|
||||
* @APPLE_APACHE_LICENSE_HEADER_START@
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*
|
||||
* @APPLE_APACHE_LICENSE_HEADER_END@
|
||||
*/
|
||||
|
||||
/*=============================================================================
|
||||
File: ALACBitUtilities.h
|
||||
|
||||
$NoKeywords: $
|
||||
=============================================================================*/
|
||||
|
||||
#ifndef __ALACBITUTILITIES_H
|
||||
#define __ALACBITUTILITIES_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#ifndef MIN
|
||||
#define MIN(x, y) ( (x)<(y) ?(x) :(y) )
|
||||
#endif //MIN
|
||||
#ifndef MAX
|
||||
#define MAX(x, y) ( (x)>(y) ?(x): (y) )
|
||||
#endif //MAX
|
||||
|
||||
#ifndef nil
|
||||
#define nil NULL
|
||||
#endif
|
||||
|
||||
#define RequireAction(condition, action) if (!(condition)) { action }
|
||||
#define RequireActionSilent(condition, action) if (!(condition)) { action }
|
||||
#define RequireNoErr(condition, action) if ((condition)) { action }
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
enum
|
||||
{
|
||||
ALAC_noErr = 0
|
||||
};
|
||||
|
||||
|
||||
typedef enum
|
||||
{
|
||||
|
||||
ID_SCE = 0, /* Single Channel Element */
|
||||
ID_CPE = 1, /* Channel Pair Element */
|
||||
ID_CCE = 2, /* Coupling Channel Element */
|
||||
ID_LFE = 3, /* LFE Channel Element */
|
||||
ID_DSE = 4, /* not yet supported */
|
||||
ID_PCE = 5,
|
||||
ID_FIL = 6,
|
||||
ID_END = 7
|
||||
} ELEMENT_TYPE;
|
||||
|
||||
// types
|
||||
typedef struct BitBuffer
|
||||
{
|
||||
uint8_t * cur;
|
||||
uint8_t * end;
|
||||
uint32_t bitIndex;
|
||||
uint32_t byteSize;
|
||||
|
||||
} BitBuffer;
|
||||
|
||||
/*
|
||||
BitBuffer routines
|
||||
- these routines take a fixed size buffer and read/write to it
|
||||
- bounds checking must be done by the client
|
||||
*/
|
||||
void BitBufferInit( BitBuffer * bits, uint8_t * buffer, uint32_t byteSize );
|
||||
uint32_t BitBufferRead( BitBuffer * bits, uint8_t numBits ); // note: cannot read more than 16 bits at a time
|
||||
uint8_t BitBufferReadSmall( BitBuffer * bits, uint8_t numBits );
|
||||
uint8_t BitBufferReadOne( BitBuffer * bits );
|
||||
uint32_t BitBufferPeek( BitBuffer * bits, uint8_t numBits ); // note: cannot read more than 16 bits at a time
|
||||
uint32_t BitBufferPeekOne( BitBuffer * bits );
|
||||
uint32_t BitBufferUnpackBERSize( BitBuffer * bits );
|
||||
uint32_t BitBufferGetPosition( BitBuffer * bits );
|
||||
void BitBufferByteAlign( BitBuffer * bits, int32_t addZeros );
|
||||
void BitBufferAdvance( BitBuffer * bits, uint32_t numBits );
|
||||
void BitBufferRewind( BitBuffer * bits, uint32_t numBits );
|
||||
void BitBufferWrite( BitBuffer * bits, uint32_t value, uint32_t numBits );
|
||||
void BitBufferReset( BitBuffer * bits);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __BITUTILITIES_H */
|
Loading…
Add table
Add a link
Reference in a new issue