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82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
#pragma once
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#include <stdlib.h>
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// Compat hacks to make an FFMPEG-like environment, so we can keep the core code mostly unchanged.
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#if defined(__clang__)
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#define DECLARE_ALIGNED(n, t, v) t __attribute__((aligned(n))) v
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#define DECLARE_ASM_CONST(n, t, v) static const t av_used __attribute__((aligned(n))) v
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#define av_restrict __restrict
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#elif defined(__GNUC__)
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#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
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#define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v
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#define av_restrict __restrict__
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#elif defined(_MSC_VER)
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#define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
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#define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
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#define av_restrict __restrict
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#else
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#define DECLARE_ALIGNED(n,t,v) t v
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#define DECLARE_ASM_CONST(n,t,v) static const t v
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#define av_restrict
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#endif
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#define AV_HAVE_FAST_UNALIGNED 0
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#define AV_INPUT_BUFFER_PADDING_SIZE 32
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// TODO: This should work but doesn't??
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// #define BITSTREAM_READER_LE
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#define LOCAL_ALIGNED(bits, type, name, subscript) type name subscript
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#define av_alias
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#define av_unused
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#define av_assert0(cond)
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#define av_assert1(cond)
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#define av_assert2(cond)
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#define av_printf_format(a,b)
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#define avpriv_report_missing_feature(...)
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#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
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#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
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#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d))
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#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
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#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
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#define AV_LOG_ERROR 16
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#define AV_LOG_WARNING 24
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#define AV_LOG_INFO 32
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#define AV_LOG_VERBOSE 40
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#define AV_LOG_DEBUG 48
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#define AV_LOG_TRACE 56
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void av_log(int level, const char *fmt, ...) av_printf_format(3, 4);
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/**
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* Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they
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* are not representable as absolute values of their type. This is the same
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* as with *abs()
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* @see FFNABS()
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*/
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#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
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#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
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#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
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#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
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#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
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#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
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#ifdef _MSC_VER
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#pragma warning(disable:4305)
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#pragma warning(disable:4244)
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#pragma warning(disable:4101) // unused variable
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#endif
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#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff))
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#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
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#define av_be2ne32(x) AV_BSWAP32C((x))
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