On Mon, Jun 05, 2017 at 06:55:21AM -0400, Kevin Mark wrote: > The scale2ref filter will now maintain the DAR of the main input and > not the DAR of the reference input. This previous behavior was deemed > counterintuitive for most (all?) use-cases. > > Before: > scale2ref=iw/4:ow/mdar > in w:320 h:240 fmt:rgb24 sar:1/1 > ref w:640 h:360 fmt:rgb24 sar:1/1 > out w:160 h:120 fmt:rgb24 sar:4/3 flags:0x2 > SAR: ((120 * 640) / (160 * 360)) * (1 / 1) = 4 / 3 > DAR: (160 / 120) * (4 / 3) = 16 / 9 > (main out now same DAR as ref) > > Now: > scale2ref=iw/4:ow/mdar > in w:320 h:240 fmt:rgb24 sar:1/1 > ref w:640 h:360 fmt:rgb24 sar:1/1 > out w:160 h:120 fmt:rgb24 sar:1/1 flags:0x2 > SAR: ((120 * 320) / (160 * 240)) * (1 / 1) = 1 / 1 > DAR: (160 / 120) * (1 / 1) = 4 / 3 > (main out same DAR as main in) > > The scale2ref FATE test has also been updated. > > Signed-off-by: Kevin Mark <kmark...@gmail.com> > --- > libavfilter/vf_scale.c | 6 +++--- > tests/ref/fate/filter-scale2ref_keep_aspect | 2 +- > 2 files changed, 4 insertions(+), 4 deletions(-)
applied thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Into a blind darkness they enter who follow after the Ignorance, they as if into a greater darkness enter who devote themselves to the Knowledge alone. -- Isha Upanishad
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