On Wed, Jun 18, 2014 at 6:08 PM, Vittorio Giovara <vittorio.giov...@gmail.com> wrote: > --- > doc/APIchanges | 3 +++ > libavutil/display.c | 10 ++++++++++ > libavutil/display.h | 9 +++++++++ > libavutil/version.h | 2 +- > 4 files changed, 23 insertions(+), 1 deletion(-) > > diff --git a/doc/APIchanges b/doc/APIchanges > index 51a2ff5..22acf95 100644 > --- a/doc/APIchanges > +++ b/doc/APIchanges > @@ -13,6 +13,9 @@ libavutil: 2013-12-xx > > API changes, most recent first: > > +2014-05-xx - xxxxxxx - lavu 53.17.0 - display.h > + Add av_display_matrix_flip() to flip the transformation matrix. > + > 2014-xx-xx - xxxxxxx - lavf 55.20.0 - avformat.h > The proper way for providing a hint about the desired timebase to the > muxers > is now setting AVStream.time_base, instead of AVStream.codec.time_base as > was > diff --git a/libavutil/display.c b/libavutil/display.c > index b2b9832..74aceb2 100644 > --- a/libavutil/display.c > +++ b/libavutil/display.c > @@ -63,3 +63,13 @@ void av_display_rotation_set(int32_t matrix[9], double > angle) > matrix[4] = CONV_DB(c); > matrix[8] = 1 << 30; > } > + > +void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip) > +{ > + int i; > + const int flip[] = { 1 - 2 * (!!hflip), 1 - 2 * (!!vflip), 1 }; > + > + if (hflip || vflip) > + for (i = 0; i < 9; i++) > + matrix[i] *= flip[i % 3]; > +} > diff --git a/libavutil/display.h b/libavutil/display.h > index ea762a4..7e37627 100644 > --- a/libavutil/display.h > +++ b/libavutil/display.h > @@ -74,4 +74,13 @@ double av_display_rotation_get(const int32_t matrix[9]); > */ > void av_display_rotation_set(int32_t matrix[9], double angle); > > +/** > + * Flip the input matrix horizontally and/or vertically. > + * > + * @param matrix an allocated transformation matrix > + * @param hflip whether the matrix should be flipped horizontally > + * @param vflip whether the matrix should be flipped vertically > + */ > +void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip); > + > #endif /* AVUTIL_DISPLAY_H */ > diff --git a/libavutil/version.h b/libavutil/version.h > index 427409f..a4384b3 100644 > --- a/libavutil/version.h > +++ b/libavutil/version.h > @@ -54,7 +54,7 @@ > */ > > #define LIBAVUTIL_VERSION_MAJOR 53 > -#define LIBAVUTIL_VERSION_MINOR 16 > +#define LIBAVUTIL_VERSION_MINOR 17 > #define LIBAVUTIL_VERSION_MICRO 0 > > #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ > -- > 1.8.3.2 >
Ping on the set. -- Vittorio _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel