或るプログラマの一生

(This article is English translation of Japanese version)

I am working on adding simple interframe compression to UMxx. Because this interframe compression is not effective for the clips that are made in part 1 and part 2, we need other clips.

I decided to use about 4:10 of Big Buck Bunny, the main character is preparing for the revenge.

mkdir 08_02A_L
cd 08_02A_L
for i in `seq 1 75`; do wget "http://distribution.bbb3d.renderfarming.net/video/exr/1426/"`printf '%04d' $i`.exr; done
ffmpeg -pattern_type glob -i '*.exr' -r 25 -vf crop=3840:2160:0:0 -pix_fmt rgb48be -vcodec rawvideo bbb_4k-1-master-b48r.mov
cd ../
mkdir 08_02B_L
cd 08_02B_L/
for i in `seq 1 120`; do wget "http://distribution.bbb3d.renderfarming.net/video/exr/1428/"`printf '%04d' $i`.exr; done
ffmpeg -pattern_type glob -i '*.exr' -r 25 -vf crop=3840:2160:0:0 -pix_fmt rgb48be -vcodec rawvideo bbb_4k-2-master-b48r.mov
cd ..
mkdir 08_03_L
cd 08_03_L
for i in `seq 1 110`; do wget "http://distribution.bbb3d.renderfarming.net/video/exr/1271/"`printf '%04d' $i`.exr; done
ffmpeg -pattern_type glob -i '*.exr' -r 25 -vf crop=3840:2160:0:0 -pix_fmt rgb48be -vcodec rawvideo bbb_4k-3-master-b48r.mov
cd ..
(echo "file 08_02A_L/bbb_4k-1-master-b48r.mov"; echo "file 08_02B_L/bbb_4k-2-master-b48r.mov"; echo "file 08_03_L/bbb_4k-3-master-b48r.mov") > list.txt
ffmpeg -f concat -safe 0 -i list.txt -frames:v 300 -vcodec copy bbb_4k-master-b48r.mov
ffmpeg -i bbb_4k-master-b48r.mov -pix_fmt rgb24 -vcodec rawvideo bbb_4k-tmp-rgb24.mov
ffmpeg -i bbb_4k-master-b48r.mov -vcodec v308 bbb_4k-tmp-yuv444.mov
ffmpeg -i bbb_4k-master-b48r.mov -pix_fmt yuyv422 -vcodec rawvideo bbb_4k-tmp-yuv422.mov
ffmpeg -i bbb_4k-master-b48r.mov -vcodec yuv4 bbb_4k-tmp-yuv420.mov
ffmpeg -i bbb_4k-master-b48r.mov -vcodec copy bbb_4k-tmp-rgb48.mov
ffmpeg -i bbb_4k-master-b48r.mov -vcodec v210 bbb_4k-tmp-yuv422-10bpc.mov