mirror of
https://github.com/FFmpeg/FFmpeg.git
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5555d2075a
* commit 'ceb754d041f5f6327fd9195a5f43575af9516daa': lzo: Use AV_COPY*U macros where appropriate prepare 9_beta2 release dsputil: Replace AV_WNxx(AV_RNxx()) combinations by AV_COPYxxU intreadwrite: Add AV_COPYxxU macros for copying to/from unaligned addresses dxtory: Replace AV_WN16A(AV_RN16A()) combination by AV_COPY16 mp3: properly forward mp_decode_frame errors Conflicts: RELEASE libavcodec/mpegaudiodec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
556 lines
15 KiB
C
556 lines
15 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_INTREADWRITE_H
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#define AVUTIL_INTREADWRITE_H
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#include <stdint.h>
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#include "libavutil/avconfig.h"
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#include "attributes.h"
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#include "bswap.h"
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typedef union {
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uint64_t u64;
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uint32_t u32[2];
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uint16_t u16[4];
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uint8_t u8 [8];
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double f64;
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float f32[2];
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} av_alias av_alias64;
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typedef union {
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uint32_t u32;
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uint16_t u16[2];
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uint8_t u8 [4];
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float f32;
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} av_alias av_alias32;
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typedef union {
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uint16_t u16;
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uint8_t u8 [2];
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} av_alias av_alias16;
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/*
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* Arch-specific headers can provide any combination of
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* AV_[RW][BLN](16|24|32|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
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* Preprocessor symbols must be defined, even if these are implemented
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* as inline functions.
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*/
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#ifdef HAVE_AV_CONFIG_H
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#include "config.h"
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#if ARCH_ARM
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# include "arm/intreadwrite.h"
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#elif ARCH_AVR32
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# include "avr32/intreadwrite.h"
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#elif ARCH_MIPS
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# include "mips/intreadwrite.h"
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#elif ARCH_PPC
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# include "ppc/intreadwrite.h"
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#elif ARCH_TOMI
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# include "tomi/intreadwrite.h"
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#elif ARCH_X86
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# include "x86/intreadwrite.h"
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#endif
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#endif /* HAVE_AV_CONFIG_H */
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/*
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* Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers.
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*/
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#if AV_HAVE_BIGENDIAN
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# if defined(AV_RN16) && !defined(AV_RB16)
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# define AV_RB16(p) AV_RN16(p)
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# elif !defined(AV_RN16) && defined(AV_RB16)
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# define AV_RN16(p) AV_RB16(p)
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# endif
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# if defined(AV_WN16) && !defined(AV_WB16)
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# define AV_WB16(p, v) AV_WN16(p, v)
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# elif !defined(AV_WN16) && defined(AV_WB16)
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# define AV_WN16(p, v) AV_WB16(p, v)
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# endif
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# if defined(AV_RN24) && !defined(AV_RB24)
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# define AV_RB24(p) AV_RN24(p)
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# elif !defined(AV_RN24) && defined(AV_RB24)
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# define AV_RN24(p) AV_RB24(p)
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# endif
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# if defined(AV_WN24) && !defined(AV_WB24)
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# define AV_WB24(p, v) AV_WN24(p, v)
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# elif !defined(AV_WN24) && defined(AV_WB24)
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# define AV_WN24(p, v) AV_WB24(p, v)
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# endif
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# if defined(AV_RN32) && !defined(AV_RB32)
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# define AV_RB32(p) AV_RN32(p)
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# elif !defined(AV_RN32) && defined(AV_RB32)
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# define AV_RN32(p) AV_RB32(p)
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# endif
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# if defined(AV_WN32) && !defined(AV_WB32)
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# define AV_WB32(p, v) AV_WN32(p, v)
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# elif !defined(AV_WN32) && defined(AV_WB32)
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# define AV_WN32(p, v) AV_WB32(p, v)
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# endif
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# if defined(AV_RN64) && !defined(AV_RB64)
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# define AV_RB64(p) AV_RN64(p)
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# elif !defined(AV_RN64) && defined(AV_RB64)
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# define AV_RN64(p) AV_RB64(p)
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# endif
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# if defined(AV_WN64) && !defined(AV_WB64)
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# define AV_WB64(p, v) AV_WN64(p, v)
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# elif !defined(AV_WN64) && defined(AV_WB64)
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# define AV_WN64(p, v) AV_WB64(p, v)
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# endif
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#else /* AV_HAVE_BIGENDIAN */
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# if defined(AV_RN16) && !defined(AV_RL16)
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# define AV_RL16(p) AV_RN16(p)
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# elif !defined(AV_RN16) && defined(AV_RL16)
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# define AV_RN16(p) AV_RL16(p)
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# endif
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# if defined(AV_WN16) && !defined(AV_WL16)
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# define AV_WL16(p, v) AV_WN16(p, v)
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# elif !defined(AV_WN16) && defined(AV_WL16)
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# define AV_WN16(p, v) AV_WL16(p, v)
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# endif
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# if defined(AV_RN24) && !defined(AV_RL24)
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# define AV_RL24(p) AV_RN24(p)
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# elif !defined(AV_RN24) && defined(AV_RL24)
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# define AV_RN24(p) AV_RL24(p)
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# endif
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# if defined(AV_WN24) && !defined(AV_WL24)
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# define AV_WL24(p, v) AV_WN24(p, v)
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# elif !defined(AV_WN24) && defined(AV_WL24)
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# define AV_WN24(p, v) AV_WL24(p, v)
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# endif
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# if defined(AV_RN32) && !defined(AV_RL32)
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# define AV_RL32(p) AV_RN32(p)
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# elif !defined(AV_RN32) && defined(AV_RL32)
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# define AV_RN32(p) AV_RL32(p)
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# endif
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# if defined(AV_WN32) && !defined(AV_WL32)
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# define AV_WL32(p, v) AV_WN32(p, v)
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# elif !defined(AV_WN32) && defined(AV_WL32)
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# define AV_WN32(p, v) AV_WL32(p, v)
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# endif
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# if defined(AV_RN64) && !defined(AV_RL64)
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# define AV_RL64(p) AV_RN64(p)
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# elif !defined(AV_RN64) && defined(AV_RL64)
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# define AV_RN64(p) AV_RL64(p)
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# endif
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# if defined(AV_WN64) && !defined(AV_WL64)
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# define AV_WL64(p, v) AV_WN64(p, v)
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# elif !defined(AV_WN64) && defined(AV_WL64)
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# define AV_WN64(p, v) AV_WL64(p, v)
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# endif
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#endif /* !AV_HAVE_BIGENDIAN */
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/*
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* Define AV_[RW]N helper macros to simplify definitions not provided
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* by per-arch headers.
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*/
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#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__)
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union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
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union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
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union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
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# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
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# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
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#elif defined(__DECC)
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# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p)))
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# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v))
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#elif AV_HAVE_FAST_UNALIGNED
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# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
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# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v))
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#else
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#ifndef AV_RB16
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# define AV_RB16(x) \
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((((const uint8_t*)(x))[0] << 8) | \
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((const uint8_t*)(x))[1])
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#endif
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#ifndef AV_WB16
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# define AV_WB16(p, darg) do { \
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unsigned d = (darg); \
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((uint8_t*)(p))[1] = (d); \
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((uint8_t*)(p))[0] = (d)>>8; \
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} while(0)
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#endif
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#ifndef AV_RL16
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# define AV_RL16(x) \
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((((const uint8_t*)(x))[1] << 8) | \
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((const uint8_t*)(x))[0])
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#endif
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#ifndef AV_WL16
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# define AV_WL16(p, darg) do { \
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unsigned d = (darg); \
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((uint8_t*)(p))[0] = (d); \
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((uint8_t*)(p))[1] = (d)>>8; \
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} while(0)
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#endif
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#ifndef AV_RB32
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# define AV_RB32(x) \
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(((uint32_t)((const uint8_t*)(x))[0] << 24) | \
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(((const uint8_t*)(x))[1] << 16) | \
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(((const uint8_t*)(x))[2] << 8) | \
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((const uint8_t*)(x))[3])
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#endif
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#ifndef AV_WB32
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# define AV_WB32(p, darg) do { \
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unsigned d = (darg); \
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((uint8_t*)(p))[3] = (d); \
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((uint8_t*)(p))[2] = (d)>>8; \
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((uint8_t*)(p))[1] = (d)>>16; \
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((uint8_t*)(p))[0] = (d)>>24; \
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} while(0)
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#endif
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#ifndef AV_RL32
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# define AV_RL32(x) \
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(((uint32_t)((const uint8_t*)(x))[3] << 24) | \
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(((const uint8_t*)(x))[2] << 16) | \
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(((const uint8_t*)(x))[1] << 8) | \
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((const uint8_t*)(x))[0])
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#endif
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#ifndef AV_WL32
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# define AV_WL32(p, darg) do { \
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unsigned d = (darg); \
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((uint8_t*)(p))[0] = (d); \
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((uint8_t*)(p))[1] = (d)>>8; \
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((uint8_t*)(p))[2] = (d)>>16; \
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((uint8_t*)(p))[3] = (d)>>24; \
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} while(0)
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#endif
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#ifndef AV_RB64
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# define AV_RB64(x) \
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(((uint64_t)((const uint8_t*)(x))[0] << 56) | \
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((uint64_t)((const uint8_t*)(x))[1] << 48) | \
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((uint64_t)((const uint8_t*)(x))[2] << 40) | \
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((uint64_t)((const uint8_t*)(x))[3] << 32) | \
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((uint64_t)((const uint8_t*)(x))[4] << 24) | \
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((uint64_t)((const uint8_t*)(x))[5] << 16) | \
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((uint64_t)((const uint8_t*)(x))[6] << 8) | \
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(uint64_t)((const uint8_t*)(x))[7])
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#endif
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#ifndef AV_WB64
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# define AV_WB64(p, darg) do { \
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uint64_t d = (darg); \
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((uint8_t*)(p))[7] = (d); \
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((uint8_t*)(p))[6] = (d)>>8; \
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((uint8_t*)(p))[5] = (d)>>16; \
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((uint8_t*)(p))[4] = (d)>>24; \
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((uint8_t*)(p))[3] = (d)>>32; \
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((uint8_t*)(p))[2] = (d)>>40; \
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((uint8_t*)(p))[1] = (d)>>48; \
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((uint8_t*)(p))[0] = (d)>>56; \
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} while(0)
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#endif
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#ifndef AV_RL64
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# define AV_RL64(x) \
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(((uint64_t)((const uint8_t*)(x))[7] << 56) | \
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((uint64_t)((const uint8_t*)(x))[6] << 48) | \
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((uint64_t)((const uint8_t*)(x))[5] << 40) | \
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((uint64_t)((const uint8_t*)(x))[4] << 32) | \
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((uint64_t)((const uint8_t*)(x))[3] << 24) | \
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((uint64_t)((const uint8_t*)(x))[2] << 16) | \
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((uint64_t)((const uint8_t*)(x))[1] << 8) | \
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(uint64_t)((const uint8_t*)(x))[0])
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#endif
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#ifndef AV_WL64
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# define AV_WL64(p, darg) do { \
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uint64_t d = (darg); \
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((uint8_t*)(p))[0] = (d); \
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((uint8_t*)(p))[1] = (d)>>8; \
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((uint8_t*)(p))[2] = (d)>>16; \
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((uint8_t*)(p))[3] = (d)>>24; \
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((uint8_t*)(p))[4] = (d)>>32; \
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((uint8_t*)(p))[5] = (d)>>40; \
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((uint8_t*)(p))[6] = (d)>>48; \
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((uint8_t*)(p))[7] = (d)>>56; \
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} while(0)
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#endif
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#if AV_HAVE_BIGENDIAN
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# define AV_RN(s, p) AV_RB##s(p)
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# define AV_WN(s, p, v) AV_WB##s(p, v)
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#else
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# define AV_RN(s, p) AV_RL##s(p)
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# define AV_WN(s, p, v) AV_WL##s(p, v)
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#endif
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#endif /* HAVE_FAST_UNALIGNED */
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#ifndef AV_RN16
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# define AV_RN16(p) AV_RN(16, p)
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#endif
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#ifndef AV_RN32
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# define AV_RN32(p) AV_RN(32, p)
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#endif
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#ifndef AV_RN64
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# define AV_RN64(p) AV_RN(64, p)
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#endif
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#ifndef AV_WN16
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# define AV_WN16(p, v) AV_WN(16, p, v)
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#endif
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#ifndef AV_WN32
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# define AV_WN32(p, v) AV_WN(32, p, v)
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#endif
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#ifndef AV_WN64
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# define AV_WN64(p, v) AV_WN(64, p, v)
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#endif
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#if AV_HAVE_BIGENDIAN
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# define AV_RB(s, p) AV_RN##s(p)
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# define AV_WB(s, p, v) AV_WN##s(p, v)
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# define AV_RL(s, p) av_bswap##s(AV_RN##s(p))
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# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v))
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#else
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# define AV_RB(s, p) av_bswap##s(AV_RN##s(p))
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# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))
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# define AV_RL(s, p) AV_RN##s(p)
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# define AV_WL(s, p, v) AV_WN##s(p, v)
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#endif
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#define AV_RB8(x) (((const uint8_t*)(x))[0])
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#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)
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#define AV_RL8(x) AV_RB8(x)
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#define AV_WL8(p, d) AV_WB8(p, d)
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#ifndef AV_RB16
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# define AV_RB16(p) AV_RB(16, p)
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#endif
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#ifndef AV_WB16
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# define AV_WB16(p, v) AV_WB(16, p, v)
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#endif
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#ifndef AV_RL16
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# define AV_RL16(p) AV_RL(16, p)
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#endif
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#ifndef AV_WL16
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# define AV_WL16(p, v) AV_WL(16, p, v)
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#endif
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#ifndef AV_RB32
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# define AV_RB32(p) AV_RB(32, p)
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#endif
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#ifndef AV_WB32
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# define AV_WB32(p, v) AV_WB(32, p, v)
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#endif
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#ifndef AV_RL32
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# define AV_RL32(p) AV_RL(32, p)
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#endif
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#ifndef AV_WL32
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# define AV_WL32(p, v) AV_WL(32, p, v)
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#endif
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#ifndef AV_RB64
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# define AV_RB64(p) AV_RB(64, p)
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#endif
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#ifndef AV_WB64
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# define AV_WB64(p, v) AV_WB(64, p, v)
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#endif
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#ifndef AV_RL64
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# define AV_RL64(p) AV_RL(64, p)
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#endif
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#ifndef AV_WL64
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# define AV_WL64(p, v) AV_WL(64, p, v)
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#endif
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#ifndef AV_RB24
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# define AV_RB24(x) \
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((((const uint8_t*)(x))[0] << 16) | \
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(((const uint8_t*)(x))[1] << 8) | \
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((const uint8_t*)(x))[2])
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#endif
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#ifndef AV_WB24
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# define AV_WB24(p, d) do { \
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((uint8_t*)(p))[2] = (d); \
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((uint8_t*)(p))[1] = (d)>>8; \
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((uint8_t*)(p))[0] = (d)>>16; \
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} while(0)
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#endif
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#ifndef AV_RL24
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# define AV_RL24(x) \
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((((const uint8_t*)(x))[2] << 16) | \
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(((const uint8_t*)(x))[1] << 8) | \
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((const uint8_t*)(x))[0])
|
|
#endif
|
|
#ifndef AV_WL24
|
|
# 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
|
|
|
|
/*
|
|
* The AV_[RW]NA macros access naturally aligned data
|
|
* in a type-safe way.
|
|
*/
|
|
|
|
#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)
|
|
#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
|
|
|
|
#ifndef AV_RN16A
|
|
# define AV_RN16A(p) AV_RNA(16, p)
|
|
#endif
|
|
|
|
#ifndef AV_RN32A
|
|
# define AV_RN32A(p) AV_RNA(32, p)
|
|
#endif
|
|
|
|
#ifndef AV_RN64A
|
|
# define AV_RN64A(p) AV_RNA(64, p)
|
|
#endif
|
|
|
|
#ifndef AV_WN16A
|
|
# define AV_WN16A(p, v) AV_WNA(16, p, v)
|
|
#endif
|
|
|
|
#ifndef AV_WN32A
|
|
# define AV_WN32A(p, v) AV_WNA(32, p, v)
|
|
#endif
|
|
|
|
#ifndef AV_WN64A
|
|
# define AV_WN64A(p, v) AV_WNA(64, p, v)
|
|
#endif
|
|
|
|
/*
|
|
* The AV_COPYxxU macros are suitable for copying data to/from unaligned
|
|
* memory locations.
|
|
*/
|
|
|
|
#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s));
|
|
|
|
#ifndef AV_COPY16U
|
|
# define AV_COPY16U(d, s) AV_COPYU(16, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY32U
|
|
# define AV_COPY32U(d, s) AV_COPYU(32, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY64U
|
|
# define AV_COPY64U(d, s) AV_COPYU(64, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY128U
|
|
# define AV_COPY128U(d, s) \
|
|
do { \
|
|
AV_COPY64U(d, s); \
|
|
AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \
|
|
} while(0)
|
|
#endif
|
|
|
|
/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
|
|
* naturally aligned. They may be implemented using MMX,
|
|
* so emms_c() must be called before using any float code
|
|
* afterwards.
|
|
*/
|
|
|
|
#define AV_COPY(n, d, s) \
|
|
(((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
|
|
|
|
#ifndef AV_COPY16
|
|
# define AV_COPY16(d, s) AV_COPY(16, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY32
|
|
# define AV_COPY32(d, s) AV_COPY(32, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY64
|
|
# define AV_COPY64(d, s) AV_COPY(64, d, s)
|
|
#endif
|
|
|
|
#ifndef AV_COPY128
|
|
# define AV_COPY128(d, s) \
|
|
do { \
|
|
AV_COPY64(d, s); \
|
|
AV_COPY64((char*)(d)+8, (char*)(s)+8); \
|
|
} while(0)
|
|
#endif
|
|
|
|
#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
|
|
|
|
#ifndef AV_SWAP64
|
|
# define AV_SWAP64(a, b) AV_SWAP(64, a, b)
|
|
#endif
|
|
|
|
#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
|
|
|
|
#ifndef AV_ZERO16
|
|
# define AV_ZERO16(d) AV_ZERO(16, d)
|
|
#endif
|
|
|
|
#ifndef AV_ZERO32
|
|
# define AV_ZERO32(d) AV_ZERO(32, d)
|
|
#endif
|
|
|
|
#ifndef AV_ZERO64
|
|
# define AV_ZERO64(d) AV_ZERO(64, d)
|
|
#endif
|
|
|
|
#ifndef AV_ZERO128
|
|
# define AV_ZERO128(d) \
|
|
do { \
|
|
AV_ZERO64(d); \
|
|
AV_ZERO64((char*)(d)+8); \
|
|
} while(0)
|
|
#endif
|
|
|
|
#endif /* AVUTIL_INTREADWRITE_H */
|