diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2011-02-22 00:23:31 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-02-22 01:49:54 +0100 |
| commit | edbaedf7a0c4cf2c41daf8259c617664b1c8b4f5 (patch) | |
| tree | dccfb812c8de09ff3045949f5ec3a261fdd7532b /libavfilter | |
| parent | bd8e750300073e4e64969e6b440b31967792d917 (diff) | |
Simplify chroma blend in the drawtext filter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/vf_drawtext.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/vf_drawtext.c b/libavfilter/vf_drawtext.c index 9fe6def826..d470c89310 100644 --- a/libavfilter/vf_drawtext.c +++ b/libavfilter/vf_drawtext.c @@ -376,8 +376,8 @@ static int config_input(AVFilterLink *inlink) 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] = 16 + (alpha * (yuva_color[1]-16) + (224 - alpha) * (picref->data[1][chroma_pos1]-16)) / 224; \ - picref->data[2][chroma_pos2] = 16 + (alpha * (yuva_color[2]-16) + (224 - alpha) * (picref->data[2][chroma_pos2]-16)) / 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; \ } static inline int draw_glyph_yuv(AVFilterBufferRef *picref, FT_Bitmap *bitmap, unsigned int x, |