Diego Biurrun <[email protected]> writes: > --- > libavutil/intreadwrite.h | 27 +++++++++++++++++++++++++++ > 1 files changed, 27 insertions(+), 0 deletions(-) > > diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h > index 01eb278..f77fd60 100644 > --- a/libavutil/intreadwrite.h > +++ b/libavutil/intreadwrite.h > @@ -462,6 +462,33 @@ union unaligned_16 { uint16_t l; } > __attribute__((packed)) av_alias; > # 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 > --
LGTM -- Måns Rullgård [email protected] _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
