On Wed, Feb 8, 2017 at 5:50 AM, Anton Khirnov <an...@khirnov.net> wrote: > This will avoid every caller from hardcoding some specific alignment, > which may break in the future with new instruction sets. > --- > doc/APIchanges | 4 ++++ > libavutil/frame.c | 4 ++++ > libavutil/frame.h | 4 +++- > libavutil/version.h | 2 +- > 4 files changed, 12 insertions(+), 2 deletions(-) > > diff --git a/doc/APIchanges b/doc/APIchanges > index acd1536..fd751f3 100644 > --- a/doc/APIchanges > +++ b/doc/APIchanges > @@ -13,6 +13,10 @@ libavutil: 2015-08-28 > > API changes, most recent first: > > +2017-02-xx - xxxxxxx - lavu 55.31.1 - frame.h > + Allow passing the value of 0 (meaning "automatic") as the required > alignment > + to av_frame_get_buffer(). > + > 2017-02-xx - xxxxxxx - lavu 55.31.0 - cpu.h > Add av_cpu_max_align() for querying maximum required data alignment. > > diff --git a/libavutil/frame.c b/libavutil/frame.c > index aafaa57..aa5820c 100644 > --- a/libavutil/frame.c > +++ b/libavutil/frame.c > @@ -19,6 +19,7 @@ > #include "channel_layout.h" > #include "buffer.h" > #include "common.h" > +#include "cpu.h" > #include "dict.h" > #include "frame.h" > #include "imgutils.h" > @@ -103,6 +104,9 @@ static int get_video_buffer(AVFrame *frame, int align) > if (ret < 0) > return ret; > > + if (align <= 0) > + align = av_cpu_max_align();
should you maybe be stricter here and check for == 0, failing for negative? -- Vittorio _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
