ffmpeg | branch: master | Peter Ross <pr...@xvid.org> | Mon Jan 7 22:12:13 2019 +1100| [b4e6d1f597a3d299176cebb42f1cf60e891a259a] | committer: Peter Ross
intreadwrite: add AV_RL64A, AV_WL64A macros for reading and writing 64-bit aligned little-endian values. these macros are used by the DST decoder and give a performance boost on platforms that where the compiler must guard against unaligned memory access. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b4e6d1f597a3d299176cebb42f1cf60e891a259a --- libavutil/intreadwrite.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h index 67c763b135..4c8413a536 100644 --- a/libavutil/intreadwrite.h +++ b/libavutil/intreadwrite.h @@ -542,6 +542,21 @@ union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias; # define AV_WN64A(p, v) AV_WNA(64, p, v) #endif +#if AV_HAVE_BIGENDIAN +# define AV_RLA(s, p) av_bswap##s(AV_RN##s##A(p)) +# define AV_WLA(s, p, v) AV_WN##s##A(p, av_bswap##s(v)) +#else +# define AV_RLA(s, p) AV_RN##s##A(p) +# define AV_WLA(s, p, v) AV_WN##s##A(p, v) +#endif + +#ifndef AV_RL64A +# define AV_RL64A(p) AV_RLA(64, p) +#endif +#ifndef AV_WL64A +# define AV_WL64A(p, v) AV_WLA(64, p, v) +#endif + /* * The AV_COPYxxU macros are suitable for copying data to/from unaligned * memory locations. _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
