mirror of
https://github.com/cookiengineer/audacity
synced 2026-04-24 23:13:42 +02:00
Bug #176 - Support newer versions of FFmpeg.
Also includes Benjamin's ffmpeg-configure-v2.patch.
This commit is contained in:
@@ -19,7 +19,7 @@
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*/
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/**
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* @file libavutil/common.h
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* @file
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* common internal and external API header
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*/
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@@ -34,84 +34,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef __GNUC__
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# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
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#else
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# define AV_GCC_VERSION_AT_LEAST(x,y) 0
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#endif
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#ifndef av_always_inline
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#if AV_GCC_VERSION_AT_LEAST(3,1)
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# define av_always_inline __attribute__((always_inline)) inline
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#else
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# define av_always_inline inline
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#endif
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#endif
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#ifndef av_noinline
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#if AV_GCC_VERSION_AT_LEAST(3,1)
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# define av_noinline __attribute__((noinline))
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#else
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# define av_noinline
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#endif
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#endif
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#ifndef av_pure
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#if AV_GCC_VERSION_AT_LEAST(3,1)
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# define av_pure __attribute__((pure))
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#else
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# define av_pure
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#endif
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#endif
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#ifndef av_const
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#if AV_GCC_VERSION_AT_LEAST(2,6)
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# define av_const __attribute__((const))
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#else
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# define av_const
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#endif
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#endif
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#ifndef av_cold
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#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,3)
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# define av_cold __attribute__((cold))
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#else
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# define av_cold
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#endif
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#endif
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#ifndef av_flatten
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#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,1)
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# define av_flatten __attribute__((flatten))
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#else
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# define av_flatten
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#endif
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#endif
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#ifndef attribute_deprecated
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#if AV_GCC_VERSION_AT_LEAST(3,1)
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# define attribute_deprecated __attribute__((deprecated))
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#else
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# define attribute_deprecated
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#endif
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#endif
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#ifndef av_unused
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#if defined(__GNUC__)
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# define av_unused __attribute__((unused))
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#else
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# define av_unused
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#endif
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#endif
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#ifndef av_uninit
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#if defined(__GNUC__) && !defined(__ICC)
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# define av_uninit(x) x=x
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#else
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# define av_uninit(x) x
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#endif
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#endif
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#include "attributes.h"
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//rounded division & shift
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#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
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@@ -132,7 +55,9 @@
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/* misc math functions */
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extern const uint8_t ff_log2_tab[256];
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static inline av_const int av_log2(unsigned int v)
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extern const uint8_t av_reverse[256];
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static inline av_const int av_log2_c(unsigned int v)
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{
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int n = 0;
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if (v & 0xffff0000) {
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@@ -148,7 +73,7 @@ static inline av_const int av_log2(unsigned int v)
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return n;
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}
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static inline av_const int av_log2_16bit(unsigned int v)
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static inline av_const int av_log2_16bit_c(unsigned int v)
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{
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int n = 0;
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if (v & 0xff00) {
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@@ -160,6 +85,18 @@ static inline av_const int av_log2_16bit(unsigned int v)
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return n;
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}
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#ifdef HAVE_AV_CONFIG_H
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# include "config.h"
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# include "intmath.h"
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#endif
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#ifndef av_log2
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# define av_log2 av_log2_c
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#endif
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#ifndef av_log2_16bit
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# define av_log2_16bit av_log2_16bit_c
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#endif
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/**
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* Clips a signed integer value into the amin-amax range.
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* @param a value to clip
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@@ -181,8 +118,19 @@ static inline av_const int av_clip(int a, int amin, int amax)
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*/
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static inline av_const uint8_t av_clip_uint8(int a)
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{
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if (a&(~255)) return (-a)>>31;
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else return a;
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if (a&(~0xFF)) return (-a)>>31;
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else return a;
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}
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/**
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* Clips a signed integer value into the 0-65535 range.
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* @param a value to clip
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* @return clipped value
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*/
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static inline av_const uint16_t av_clip_uint16(int a)
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{
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if (a&(~0xFFFF)) return (-a)>>31;
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else return a;
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}
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/**
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@@ -192,8 +140,19 @@ static inline av_const uint8_t av_clip_uint8(int a)
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*/
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static inline av_const int16_t av_clip_int16(int a)
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{
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if ((a+32768) & ~65535) return (a>>31) ^ 32767;
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else return a;
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if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
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else return a;
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}
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/**
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* Clips a signed 64-bit integer value into the -2147483648,2147483647 range.
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* @param a value to clip
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* @return clipped value
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*/
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static inline av_const int32_t av_clipl_int32(int64_t a)
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{
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if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
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else return a;
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}
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/**
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@@ -210,6 +169,15 @@ static inline av_const float av_clipf(float a, float amin, float amax)
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else return a;
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}
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/** Computes ceil(log2(x)).
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* @param x value used to compute ceil(log2(x))
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* @return computed ceiling of log2(x)
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*/
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static inline av_const int av_ceil_log2(int x)
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{
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return av_log2((x - 1) << 1);
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}
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#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
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#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
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@@ -241,6 +209,30 @@ static inline av_const float av_clipf(float a, float amin, float amax)
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}\
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}
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/*!
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* \def GET_UTF16(val, GET_16BIT, ERROR)
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* Converts a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form
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* \param val is the output and should be of type uint32_t. It holds the converted
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* UCS-4 character and should be a left value.
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* \param GET_16BIT gets two bytes of UTF-16 encoded data converted to native endianness.
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* It can be a function or a statement whose return value or evaluated value is of type
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* uint16_t. It will be executed up to 2 times.
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* \param ERROR action that should be taken when an invalid UTF-16 surrogate is
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* returned from GET_BYTE. It should be a statement that jumps out of the macro,
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* like exit(), goto, return, break, or continue.
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*/
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#define GET_UTF16(val, GET_16BIT, ERROR)\
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val = GET_16BIT;\
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{\
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unsigned int hi = val - 0xD800;\
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if (hi < 0x800) {\
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val = GET_16BIT - 0xDC00;\
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if (val > 0x3FFU || hi > 0x3FFU)\
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ERROR\
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val += (hi<<10) + 0x10000;\
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}\
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}\
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/*!
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* \def PUT_UTF8(val, tmp, PUT_BYTE)
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* Converts a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
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@@ -277,10 +269,39 @@ static inline av_const float av_clipf(float a, float amin, float amax)
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}\
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}
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/*!
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* \def PUT_UTF16(val, tmp, PUT_16BIT)
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* Converts a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
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* \param val is an input-only argument and should be of type uint32_t. It holds
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* a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
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* val is given as a function it is executed only once.
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* \param tmp is a temporary variable and should be of type uint16_t. It
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* represents an intermediate value during conversion that is to be
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* output by PUT_16BIT.
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* \param PUT_16BIT writes the converted UTF-16 data to any proper destination
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* in desired endianness. It could be a function or a statement, and uses tmp
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* as the input byte. For example, PUT_BYTE could be "*output++ = tmp;"
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* PUT_BYTE will be executed 1 or 2 times depending on input character.
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*/
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#define PUT_UTF16(val, tmp, PUT_16BIT)\
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{\
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uint32_t in = val;\
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if (in < 0x10000) {\
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tmp = in;\
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PUT_16BIT\
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} else {\
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tmp = 0xD800 | ((in - 0x10000) >> 10);\
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PUT_16BIT\
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tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
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PUT_16BIT\
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}\
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}\
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#include "mem.h"
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#ifdef HAVE_AV_CONFIG_H
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# include "config.h"
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# include "internal.h"
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#endif /* HAVE_AV_CONFIG_H */
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