latest

2022-11-08-lunar-eclipse-timelapse/Makefile

@@ -0,0 +1,8 @@
+default: output
+
+output:
+	time bash gen.sh
+	du -sh output
+
+clean:
+	rm -rfv output tmp.sh

2022-11-08-lunar-eclipse-timelapse/gen.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+#-c:v libx264 \
+#-c:v libx265 \
+#-vf "scale=(iw*sar)*max($W/(iw*sar)\,$H/ih):ih*max($W/(iw*sar)\,$H/ih), crop=$W:$H" \
+#-s:v ${W}x${H} \
+W="3840"
+H="2160"
+
+DIR1="10621108"
+DIR2="10721108"
+
+#-vcodec libx264 \
+#-crf 17 \
+#-preset slow \
+
+function main {
+    convertRaws
+    makeBigVersion
+    makeSmallVersion
+}
+
+function makeBigVersion {
+    #-c:v hevc_videotoolbox -q:v 100 \
+    #-vf scale=-2:${H} \
+    ffmpeg -framerate 24 \
+        -pattern_type glob \
+        -i 'output/frames/*.png' \
+        -c:v prores -profile:v 3 \
+        -pix_fmt yuv422p10 \
+        output/big.mov
+}
+
+function makeSmallVersion {
+    ffmpeg -i output/big.mov \
+        -vf scale=-2:1080 \
+        -c:v h264_videotoolbox \
+        -b:v 12000K \
+        output/preview.1080p.mp4
+}
+
+function convertRaws {
+    if [[ -e output/frames/done ]]; then
+        return
+    fi
+    mkdir -p output/frames
+    rm -rf tmp.sh
+    for i in $DIR1/*.ARW; do
+        BN="$(basename ${i%.*})"
+        echo sips -s format png $i --out "output/frames/1${BN}.png"
+        echo sips -s format png $i --out "output/frames/1${BN}.png" >> tmp.sh
+    done
+    for i in $DIR2/*.ARW; do
+        BN="$(basename ${i%.*})"
+        echo sips -s format png $i --out "output/frames/2${BN}.png"
+        echo sips -s format png $i --out "output/frames/2${BN}.png" >> tmp.sh
+    done
+    parallel --eta -j $(nproc) bash -c < tmp.sh && touch output/frames/done
+}
+
+main