On Wed, 20 Apr 2011 18:08:17 -0400, "Ronald S. Bultje" <rsbul...@gmail.com> wrote: > Hi, > > On Wed, Apr 20, 2011 at 3:45 PM, Anton Khirnov <an...@khirnov.net> wrote: > > From: Michael Niedermayer <michae...@gmx.at> > > > > Signed-off-by: Michael Niedermayer <michae...@gmx.at> > > Signed-off-by: Anton Khirnov <an...@khirnov.net> > > --- > > libavfilter/vf_drawtext.c | 5 ++--- > > 1 files changed, 2 insertions(+), 3 deletions(-) > > > > diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c > > index 9fc0341..5eb14df 100644 > > --- a/libavfilter/vf_drawtext.c > > +++ b/libavfilter/vf_drawtext.c > > @@ -389,9 +389,8 @@ static int config_input(AVFilterLink *inlink) > > chroma_pos2 = ((x) >> (hsub)) + ((y) >> (vsub)) * picref->linesize[2]; \ > > alpha = (yuva_color[3] * (val)) / 255; \ > > picref->data[0][luma_pos] = (alpha * yuva_color[0] + (255 - alpha) * > > picref->data[0][luma_pos]) >> 8; \ > > - alpha = (yuva_color[3] * (val)) / 224; \ > > - picref->data[1][chroma_pos1] = (alpha * yuva_color[1] + (224 - alpha) > > * picref->data[1][chroma_pos1]) / 224; \ > > - picref->data[2][chroma_pos2] = (alpha * yuva_color[2] + (224 - alpha) > > * picref->data[2][chroma_pos2]) / 224; \ > > + picref->data[1][chroma_pos1] = (alpha * yuva_color[1] + (255 - alpha) > > * picref->data[1][chroma_pos1]) >> 8; \ > > + picref->data[2][chroma_pos2] = (alpha * yuva_color[2] + (255 - alpha) > > * picref->data[2][chroma_pos2]) >> 8; \ > > Should be merged with 2. And is this actually correct? I don't think > it is, unless this is 255-range YUV.
No idea, I don't know how those things work ;) Please fix if you do. -- Anton Khirnov _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
