diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/image.cc | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/lib/image.cc b/src/lib/image.cc index da1bb86ee..92c1ab9a2 100644 --- a/src/lib/image.cc +++ b/src/lib/image.cc @@ -68,15 +68,16 @@ Image::vertical_factor (int n) const int Image::horizontal_factor (int n) const { - int horizontal_factor = 1; - if (n > 0) { - AVPixFmtDescriptor const * d = av_pix_fmt_desc_get (_pixel_format); - if (!d) { - throw PixelFormatError ("sample_size()", _pixel_format); - } - horizontal_factor = pow (2.0f, d->log2_chroma_w); + if (n == 0) { + return 1; + } + + AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format); + if (!d) { + throw PixelFormatError ("sample_size()", _pixel_format); } - return horizontal_factor; + + return pow (2.0f, d->log2_chroma_w); } /** @param n Component index. |