merged all the latest changes from 2.4 to trunk
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37
3rdparty/include/ffmpeg_/libavutil/common.h
vendored
37
3rdparty/include/ffmpeg_/libavutil/common.h
vendored
@@ -220,8 +220,18 @@ static av_always_inline av_const int av_popcount_c(uint32_t x)
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return (x + (x >> 16)) & 0x3F;
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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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/**
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* Count number of bits set to one in x
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* @param x value to count bits of
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* @return the number of bits set to one in x
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*/
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static av_always_inline av_const int av_popcount64_c(uint64_t x)
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{
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return av_popcount(x) + av_popcount(x >> 32);
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}
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#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
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#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24))
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/**
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* Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
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@@ -270,16 +280,16 @@ static av_always_inline av_const int av_popcount_c(uint32_t x)
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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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/**
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* @def PUT_UTF8(val, tmp, PUT_BYTE)
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* Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
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* \param val is an input-only argument and should be of type uint32_t. It holds
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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-8. 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 uint8_t. It
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* @param tmp is a temporary variable and should be of type uint8_t. It
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* represents an intermediate value during conversion that is to be
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* output by PUT_BYTE.
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* \param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
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* @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
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* It could be a function or a statement, and uses tmp as the input byte.
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* For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
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* executed up to 4 times for values in the valid UTF-8 range and up to
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@@ -306,16 +316,16 @@ static av_always_inline av_const int av_popcount_c(uint32_t x)
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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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/**
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* @def PUT_UTF16(val, tmp, PUT_16BIT)
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* Convert 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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* @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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* @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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* @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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@@ -385,3 +395,6 @@ static av_always_inline av_const int av_popcount_c(uint32_t x)
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#ifndef av_popcount
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# define av_popcount av_popcount_c
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#endif
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#ifndef av_popcount64
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# define av_popcount64 av_popcount64_c
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#endif
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