07405841c6
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31367 a1c6a512-1295-4272-9138-f99709370657
79 lines
2 KiB
C
79 lines
2 KiB
C
/**
|
|
* @file bitstream.h
|
|
* bitstream api header.
|
|
*/
|
|
|
|
#ifndef BITSTREAM_H
|
|
#define BITSTREAM_H
|
|
|
|
#include <inttypes.h>
|
|
#include "ffmpeg_get_bits.h"
|
|
|
|
#ifndef BUILD_STANDALONE
|
|
#include <config.h>
|
|
#include <system.h>
|
|
#else
|
|
#include <stdio.h>
|
|
#define IBSS_ATTR
|
|
#define ICONST_ATTR
|
|
#define ICODE_ATTR
|
|
#endif
|
|
|
|
#if (CONFIG_CPU == MCF5250) || (CONFIG_CPU == PP5022) || (CONFIG_CPU == PP5024)
|
|
#define ICODE_ATTR_FLAC ICODE_ATTR
|
|
#define IBSS_ATTR_FLAC IBSS_ATTR
|
|
/* Enough IRAM to move additional data to it. */
|
|
#define IBSS_ATTR_FLAC_LARGE_IRAM IBSS_ATTR
|
|
#define IBSS_ATTR_FLAC_XLARGE_IRAM
|
|
|
|
#elif defined(CPU_S5L870X)
|
|
#define ICODE_ATTR_FLAC ICODE_ATTR
|
|
#define IBSS_ATTR_FLAC IBSS_ATTR
|
|
/* Enough IRAM to move even more additional data to it. */
|
|
#define IBSS_ATTR_FLAC_LARGE_IRAM IBSS_ATTR
|
|
#define IBSS_ATTR_FLAC_XLARGE_IRAM IBSS_ATTR
|
|
|
|
#else
|
|
#define ICODE_ATTR_FLAC ICODE_ATTR
|
|
#define IBSS_ATTR_FLAC IBSS_ATTR
|
|
/* Not enough IRAM available. */
|
|
#define IBSS_ATTR_FLAC_LARGE_IRAM
|
|
#define IBSS_ATTR_FLAC_XLARGE_IRAM
|
|
#endif
|
|
|
|
/* Endian conversion routines for standalone compilation */
|
|
#ifdef BUILD_STANDALONE
|
|
#ifdef BUILD_BIGENDIAN
|
|
#define betoh32(x) (x)
|
|
#define letoh32(x) swap32(x)
|
|
#else
|
|
#define letoh32(x) (x)
|
|
#define betoh32(x) swap32(x)
|
|
#endif
|
|
|
|
/* Taken from rockbox/firmware/export/system.h */
|
|
|
|
static inline unsigned short swap16(unsigned short value)
|
|
/*
|
|
result[15..8] = value[ 7..0];
|
|
result[ 7..0] = value[15..8];
|
|
*/
|
|
{
|
|
return (value >> 8) | (value << 8);
|
|
}
|
|
|
|
static inline unsigned long swap32(unsigned long value)
|
|
/*
|
|
result[31..24] = value[ 7.. 0];
|
|
result[23..16] = value[15.. 8];
|
|
result[15.. 8] = value[23..16];
|
|
result[ 7.. 0] = value[31..24];
|
|
*/
|
|
{
|
|
unsigned long hi = swap16(value >> 16);
|
|
unsigned long lo = swap16(value & 0xffff);
|
|
return (lo << 16) | hi;
|
|
}
|
|
#endif
|
|
|
|
#endif /* BITSTREAM_H */
|