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/**
* @file bitstream.h
* bitstream api header.
*/
#ifndef BITSTREAM_H
#define BITSTREAM_H
#include <inttypes.h>
#include "ffmpeg_get_bits.h"
#ifndef BUILD_STANDALONE
#include "platform.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) || (CONFIG_CPU == S5L8702)
#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 (CONFIG_CPU == S5L8700) || (CONFIG_CPU == S5L8701)
#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 */
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