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    • Peter Meerwald's avatar
      libavutil: Add av_clip_intp2 · bf07d813
      Peter Meerwald authored
      there already is a function, av_clip_uintp2() that clips a signed integer
      to an unsigned power-of-two range, i.e. 0,2^p-1
      
      this patch adds a function av_clip_intp2() that clips a signed integer
      to a signed power-of-two range, i.e. -(2^p),(2^p-1)
      
      the new function can be used as a special case for av_clip(), e.g.
      av_clip(x, -8192, 8191) can be rewritten as av_clip_intp2(x, 13)
      
      there are ARM instructions, usat and ssat resp., which map nicely to these
      functions (see next patch)
      Signed-off-by: 's avatarPeter Meerwald <pmeerw@pmeerw.net>
      Signed-off-by: 's avatarLuca Barbato <lu_zero@gentoo.org>
      bf07d813
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    • Nicolas George's avatar
      lavu: fix GET_UTF8 macro. · 29ebb7ba
      Nicolas George authored
      Prevent 0xFE and 0xFF from being considered the start of
      non-standard 7-bytes sequences. No noticeable effect on speed.
      29ebb7ba
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