From 69db01e72f2de91d35703919bfc9d0700df83e85 Mon Sep 17 00:00:00 2001 From: Dave Chapman Date: Sat, 9 May 2009 01:04:20 +0000 Subject: Initial commit of the minimal set of ffmpeg (r18079) files required for Cook (realaudio) decoding. These are the unmodified versions from ffmpeg, committed as a base for future changes. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20882 a1c6a512-1295-4272-9138-f99709370657 --- apps/codecs/libcook/libavutil/intreadwrite.h | 192 +++++++++++++++++++++++++++ 1 file changed, 192 insertions(+) create mode 100644 apps/codecs/libcook/libavutil/intreadwrite.h (limited to 'apps/codecs/libcook/libavutil/intreadwrite.h') diff --git a/apps/codecs/libcook/libavutil/intreadwrite.h b/apps/codecs/libcook/libavutil/intreadwrite.h new file mode 100644 index 0000000000..7c5909ea51 --- /dev/null +++ b/apps/codecs/libcook/libavutil/intreadwrite.h @@ -0,0 +1,192 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_INTREADWRITE_H +#define AVUTIL_INTREADWRITE_H + +#include +#include "config.h" +#include "bswap.h" + +#ifdef __GNUC__ + +struct unaligned_64 { uint64_t l; } __attribute__((packed)); +struct unaligned_32 { uint32_t l; } __attribute__((packed)); +struct unaligned_16 { uint16_t l; } __attribute__((packed)); + +#define AV_RN16(a) (((const struct unaligned_16 *) (a))->l) +#define AV_RN32(a) (((const struct unaligned_32 *) (a))->l) +#define AV_RN64(a) (((const struct unaligned_64 *) (a))->l) + +#define AV_WN16(a, b) (((struct unaligned_16 *) (a))->l) = (b) +#define AV_WN32(a, b) (((struct unaligned_32 *) (a))->l) = (b) +#define AV_WN64(a, b) (((struct unaligned_64 *) (a))->l) = (b) + +#elif defined(__DECC) + +#define AV_RN16(a) (*((const __unaligned uint16_t*)(a))) +#define AV_RN32(a) (*((const __unaligned uint32_t*)(a))) +#define AV_RN64(a) (*((const __unaligned uint64_t*)(a))) + +#define AV_WN16(a, b) *((__unaligned uint16_t*)(a)) = (b) +#define AV_WN32(a, b) *((__unaligned uint32_t*)(a)) = (b) +#define AV_WN64(a, b) *((__unaligned uint64_t*)(a)) = (b) + +#else + +#define AV_RN16(a) (*((const uint16_t*)(a))) +#define AV_RN32(a) (*((const uint32_t*)(a))) +#define AV_RN64(a) (*((const uint64_t*)(a))) + +#define AV_WN16(a, b) *((uint16_t*)(a)) = (b) +#define AV_WN32(a, b) *((uint32_t*)(a)) = (b) +#define AV_WN64(a, b) *((uint64_t*)(a)) = (b) + +#endif /* !__GNUC__ */ + +/* endian macros */ +#define AV_RB8(x) (((const uint8_t*)(x))[0]) +#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0) + +#define AV_RL8(x) AV_RB8(x) +#define AV_WL8(p, d) AV_WB8(p, d) + +#if HAVE_FAST_UNALIGNED +# ifdef WORDS_BIGENDIAN +# define AV_RB16(x) AV_RN16(x) +# define AV_WB16(p, d) AV_WN16(p, d) + +# define AV_RL16(x) bswap_16(AV_RN16(x)) +# define AV_WL16(p, d) AV_WN16(p, bswap_16(d)) + +# define AV_RB32(x) AV_RN32(x) +# define AV_WB32(p, d) AV_WN32(p, d) + +# define AV_RL32(x) bswap_32(AV_RN32(x)) +# define AV_WL32(p, d) AV_WN32(p, bswap_32(d)) + +# define AV_RB64(x) AV_RN64(x) +# define AV_WB64(p, d) AV_WN64(p, d) + +# define AV_RL64(x) bswap_64(AV_RN64(x)) +# define AV_WL64(p, d) AV_WN64(p, bswap_64(d)) +# else /* WORDS_BIGENDIAN */ +# define AV_RB16(x) bswap_16(AV_RN16(x)) +# define AV_WB16(p, d) AV_WN16(p, bswap_16(d)) + +# define AV_RL16(x) AV_RN16(x) +# define AV_WL16(p, d) AV_WN16(p, d) + +# define AV_RB32(x) bswap_32(AV_RN32(x)) +# define AV_WB32(p, d) AV_WN32(p, bswap_32(d)) + +# define AV_RL32(x) AV_RN32(x) +# define AV_WL32(p, d) AV_WN32(p, d) + +# define AV_RB64(x) bswap_64(AV_RN64(x)) +# define AV_WB64(p, d) AV_WN64(p, bswap_64(d)) + +# define AV_RL64(x) AV_RN64(x) +# define AV_WL64(p, d) AV_WN64(p, d) +# endif +#else /* HAVE_FAST_UNALIGNED */ +#define AV_RB16(x) ((((const uint8_t*)(x))[0] << 8) | ((const uint8_t*)(x))[1]) +#define AV_WB16(p, d) do { \ + ((uint8_t*)(p))[1] = (d); \ + ((uint8_t*)(p))[0] = (d)>>8; } while(0) + +#define AV_RL16(x) ((((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#define AV_WL16(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; } while(0) + +#define AV_RB32(x) ((((const uint8_t*)(x))[0] << 24) | \ + (((const uint8_t*)(x))[1] << 16) | \ + (((const uint8_t*)(x))[2] << 8) | \ + ((const uint8_t*)(x))[3]) +#define AV_WB32(p, d) do { \ + ((uint8_t*)(p))[3] = (d); \ + ((uint8_t*)(p))[2] = (d)>>8; \ + ((uint8_t*)(p))[1] = (d)>>16; \ + ((uint8_t*)(p))[0] = (d)>>24; } while(0) + +#define AV_RL32(x) ((((const uint8_t*)(x))[3] << 24) | \ + (((const uint8_t*)(x))[2] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#define AV_WL32(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; \ + ((uint8_t*)(p))[3] = (d)>>24; } while(0) + +#define AV_RB64(x) (((uint64_t)((const uint8_t*)(x))[0] << 56) | \ + ((uint64_t)((const uint8_t*)(x))[1] << 48) | \ + ((uint64_t)((const uint8_t*)(x))[2] << 40) | \ + ((uint64_t)((const uint8_t*)(x))[3] << 32) | \ + ((uint64_t)((const uint8_t*)(x))[4] << 24) | \ + ((uint64_t)((const uint8_t*)(x))[5] << 16) | \ + ((uint64_t)((const uint8_t*)(x))[6] << 8) | \ + (uint64_t)((const uint8_t*)(x))[7]) +#define AV_WB64(p, d) do { \ + ((uint8_t*)(p))[7] = (d); \ + ((uint8_t*)(p))[6] = (d)>>8; \ + ((uint8_t*)(p))[5] = (d)>>16; \ + ((uint8_t*)(p))[4] = (d)>>24; \ + ((uint8_t*)(p))[3] = (d)>>32; \ + ((uint8_t*)(p))[2] = (d)>>40; \ + ((uint8_t*)(p))[1] = (d)>>48; \ + ((uint8_t*)(p))[0] = (d)>>56; } while(0) + +#define AV_RL64(x) (((uint64_t)((const uint8_t*)(x))[7] << 56) | \ + ((uint64_t)((const uint8_t*)(x))[6] << 48) | \ + ((uint64_t)((const uint8_t*)(x))[5] << 40) | \ + ((uint64_t)((const uint8_t*)(x))[4] << 32) | \ + ((uint64_t)((const uint8_t*)(x))[3] << 24) | \ + ((uint64_t)((const uint8_t*)(x))[2] << 16) | \ + ((uint64_t)((const uint8_t*)(x))[1] << 8) | \ + (uint64_t)((const uint8_t*)(x))[0]) +#define AV_WL64(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; \ + ((uint8_t*)(p))[3] = (d)>>24; \ + ((uint8_t*)(p))[4] = (d)>>32; \ + ((uint8_t*)(p))[5] = (d)>>40; \ + ((uint8_t*)(p))[6] = (d)>>48; \ + ((uint8_t*)(p))[7] = (d)>>56; } while(0) +#endif /* HAVE_FAST_UNALIGNED */ + +#define AV_RB24(x) ((((const uint8_t*)(x))[0] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[2]) +#define AV_WB24(p, d) do { \ + ((uint8_t*)(p))[2] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[0] = (d)>>16; } while(0) + +#define AV_RL24(x) ((((const uint8_t*)(x))[2] << 16) | \ + (((const uint8_t*)(x))[1] << 8) | \ + ((const uint8_t*)(x))[0]) +#define AV_WL24(p, d) do { \ + ((uint8_t*)(p))[0] = (d); \ + ((uint8_t*)(p))[1] = (d)>>8; \ + ((uint8_t*)(p))[2] = (d)>>16; } while(0) + +#endif /* AVUTIL_INTREADWRITE_H */ -- cgit v1.2.3