diff options
Diffstat (limited to 'libswscale/alphablend.c')
| -rw-r--r-- | libswscale/alphablend.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libswscale/alphablend.c b/libswscale/alphablend.c index b9b809b702..1f63493bdc 100644 --- a/libswscale/alphablend.c +++ b/libswscale/alphablend.c @@ -28,20 +28,20 @@ int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[], int nb_components = desc->nb_components; int plane, x, y; int plane_count = isGray(c->srcFormat) ? 1 : 3; - int sixteen_bits = desc->comp[0].depth_minus1 >= 8; - unsigned off = 1<<desc->comp[0].depth_minus1; - unsigned shift = desc->comp[0].depth_minus1 + 1; + int sixteen_bits = desc->comp[0].depth >= 9; + unsigned off = 1<<(desc->comp[0].depth - 1); + unsigned shift = desc->comp[0].depth; unsigned max = (1<<shift) - 1; int target_table[2][3]; for (plane = 0; plane < plane_count; plane++) { int a = 0, b = 0; if (c->alphablend == SWS_ALPHA_BLEND_CHECKERBOARD) { - a = (1<<desc->comp[0].depth_minus1)/2; - b = 3*(1<<desc->comp[0].depth_minus1)/2; + a = (1<<(desc->comp[0].depth - 1))/2; + b = 3*(1<<(desc->comp[0].depth-1))/2; } - target_table[0][plane] = plane && !(desc->flags & AV_PIX_FMT_FLAG_RGB) ? 1<<desc->comp[0].depth_minus1 : a; - target_table[1][plane] = plane && !(desc->flags & AV_PIX_FMT_FLAG_RGB) ? 1<<desc->comp[0].depth_minus1 : b; + target_table[0][plane] = plane && !(desc->flags & AV_PIX_FMT_FLAG_RGB) ? 1<<(desc->comp[0].depth - 1) : a; + target_table[1][plane] = plane && !(desc->flags & AV_PIX_FMT_FLAG_RGB) ? 1<<(desc->comp[0].depth - 1) : b; } av_assert0(plane_count == nb_components - 1); @@ -125,7 +125,7 @@ int ff_sws_alphablendaway(SwsContext *c, const uint8_t *src[], } } } else { - int alpha_pos = desc->comp[plane_count].offset_plus1 - 1; + int alpha_pos = desc->comp[plane_count].offset; int w = c->srcW; for (y = srcSliceY; y < srcSliceH; y++) { if (sixteen_bits) { |