Make arbitrary time steps work #44
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When interpolating whole directories of frames, choosing a time step value other than 0.5 didn't yield the right results.
This change allows the time step to be anything, i.e. 0.4166667 (25.0 / 60.0) to convert the frames from a 25 fps clip into a 60 fps clip:
$ /opt/dain-ncnn-vulkan-2022-07/dain-ncnn-vulkan \ -v \ -i frames-25fps \ -o frames-60fps \ -t 768 \ -m /opt/dain-ncnn-vulkan-2022-07/best \ -s 0.4166667 [0 NVIDIA GeForce RTX 3090] queueC=2[8] queueG=0[16] queueT=1[2] [0 NVIDIA GeForce RTX 3090] bugsbn1=0 bugbilz=0 bugcopc=0 bugihfa=0 [0 NVIDIA GeForce RTX 3090] fp16-p/s/a=1/1/1 int8-p/s/a=1/1/1 [0 NVIDIA GeForce RTX 3090] subgroup=32 basic=1 vote=1 ballot=1 shuffle=1 frames-25fps/00000001.png frames-25fps/00000002.png 0.000000 -> frames-60fps/00000001.png done frames-25fps/00000001.png frames-25fps/00000002.png 0.416667 -> frames-60fps/00000002.png done frames-25fps/00000001.png frames-25fps/00000002.png 0.833333 -> frames-60fps/00000003.png done frames-25fps/00000002.png frames-25fps/00000003.png 0.250000 -> frames-60fps/00000004.png done frames-25fps/00000002.png frames-25fps/00000003.png 0.666667 -> frames-60fps/00000005.png done frames-25fps/00000003.png frames-25fps/00000004.png 0.083333 -> frames-60fps/00000006.png done frames-25fps/00000003.png frames-25fps/00000004.png 0.500000 -> frames-60fps/00000007.png done frames-25fps/00000003.png frames-25fps/00000004.png 0.916667 -> frames-60fps/00000008.png done frames-25fps/00000004.png frames-25fps/00000005.png 0.333333 -> frames-60fps/00000009.png done frames-25fps/00000004.png frames-25fps/00000005.png 0.750000 -> frames-60fps/00000010.png done frames-25fps/00000006.png frames-25fps/00000007.png 0.000000 -> frames-60fps/00000013.png done frames-25fps/00000005.png frames-25fps/00000006.png 0.166667 -> frames-60fps/00000011.png done frames-25fps/00000005.png frames-25fps/00000006.png 0.583334 -> frames-60fps/00000012.png done frames-25fps/00000006.png frames-25fps/00000007.png 0.416667 -> frames-60fps/00000014.png done frames-25fps/00000006.png frames-25fps/00000007.png 0.833333 -> frames-60fps/00000015.png done frames-25fps/00000007.png frames-25fps/00000008.png 0.250000 -> frames-60fps/00000016.png done frames-25fps/00000007.png frames-25fps/00000008.png 0.666667 -> frames-60fps/00000017.png done frames-25fps/00000008.png frames-25fps/00000009.png 0.083333 -> frames-60fps/00000018.png done frames-25fps/00000008.png frames-25fps/00000009.png 0.500000 -> frames-60fps/00000019.png done frames-25fps/00000008.png frames-25fps/00000009.png 0.916667 -> frames-60fps/00000020.png done frames-25fps/00000009.png frames-25fps/00000010.png 0.333333 -> frames-60fps/00000021.png done frames-25fps/00000009.png frames-25fps/00000010.png 0.750000 -> frames-60fps/00000022.png done