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![]() This new FATE test for the scale2ref filter makes use of the recently added scale2ref-specific variables to maintain the aspect ratio of a test input. Filtergraph explanation: [main] has an AR of 4:3. [ref] has an AR of 16:9. 640 / 4 = 160. So the new width for [main] is 160. 160 / ((320 / 240) * (1 / 1)) = 160 / (4 / 3) = 120. So the new height for [main] is 120. 160 / 120 = 4 / 3 so [main]'s aspect ratio has been maintained while using [ref]'s width as a reference point. [ref] is nullsink'd since it is left unchanged by scale2ref (and so shouldn't need to be tested). If we were to use "iw/4:-1" in place of "iw/4:ow/mdar": 640 / 4 = 160. So the new width for [main] would be 160. 360 / 4 = 90. So the new height for [main] would be 90. 160 / 90 = 16 / 9 so [main] now has the same aspect ratio as [ref] which is probably what you do not want. This is currently the only test for scale2ref. Signed-off-by: Kevin Mark <kmark937@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> |
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alphamerge_alphaextract_rgb | ||
alphamerge_alphaextract_yuv | ||
anequalizer | ||
channelmap_one_int | ||
channelmap_one_str | ||
colorkey | ||
compand | ||
concat | ||
firequalizer | ||
gradfun | ||
hqdn3d | ||
hstack | ||
lavr_mix_output_zero | ||
mergeplanes | ||
overlay | ||
overlay_nv12 | ||
overlay_nv21 | ||
overlay_rgb | ||
overlay_yuv420 | ||
overlay_yuv422 | ||
overlay_yuv444 | ||
overlay-dvdsub-2397 | ||
scale2ref_keep_aspect | ||
scalenorm | ||
select-alternate | ||
setpts | ||
vstack |