ffmpeg | branch: master | Paul B Mahol <one...@gmail.com> | Sat Oct 12 21:41:50 2019 +0200| [e835a9d30263ce16e2621d79ff1be9afd5274a60] | committer: Paul B Mahol
avfilter/vf_libvmaf: fix filtering of >8 bit data This is what reference does. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e835a9d30263ce16e2621d79ff1be9afd5274a60 --- libavfilter/vf_libvmaf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavfilter/vf_libvmaf.c b/libavfilter/vf_libvmaf.c index 249e50c720..ed3a383709 100644 --- a/libavfilter/vf_libvmaf.c +++ b/libavfilter/vf_libvmaf.c @@ -110,6 +110,7 @@ FRAMESYNC_DEFINE_CLASS(libvmaf, LIBVMAFContext, fs); const type *main_ptr = (const type *) s->gmain->data[0]; \ \ float *ptr = ref_data; \ + float factor = 1.f / (1 << (bits - 8)); \ \ int h = s->height; \ int w = s->width; \ @@ -118,7 +119,7 @@ FRAMESYNC_DEFINE_CLASS(libvmaf, LIBVMAFContext, fs); \ for (i = 0; i < h; i++) { \ for ( j = 0; j < w; j++) { \ - ptr[j] = (float)ref_ptr[j]; \ + ptr[j] = ref_ptr[j] * factor; \ } \ ref_ptr += ref_stride / sizeof(*ref_ptr); \ ptr += stride / sizeof(*ptr); \ @@ -128,7 +129,7 @@ FRAMESYNC_DEFINE_CLASS(libvmaf, LIBVMAFContext, fs); \ for (i = 0; i < h; i++) { \ for (j = 0; j < w; j++) { \ - ptr[j] = (float)main_ptr[j]; \ + ptr[j] = main_ptr[j] * factor; \ } \ main_ptr += main_stride / sizeof(*main_ptr); \ ptr += stride / sizeof(*ptr); \ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
