The biggest failing of the default index of /dcim is that videos appear as blank file icons. Fix it:
# Generate thumbnails for all MP4s
for f in *.mp4; do
ffmpeg -i "$f" -ss 00:00:01 -vframes 1 "$f.jpg"
done
Then modify your gallery to display the .jpg thumbnail linked to the .mp4. This is the hallmark of a truly better DCIM index. index of dcim better
The DCIM (Digital Camera Images) folder is the universal directory where digital cameras and smartphones store photos and videos. Originally standardized by the DCF (Design rule for Camera File system) specification, DCIM is now a default across Android, iOS (when exposed via certain interfaces), and digital cameras. Despite its ubiquity, the DCIM structure often becomes cluttered and inefficient as device use grows. This essay examines the origin and structure of DCIM, common problems users face, and practical strategies—both technical and behavioral—to make DCIM "better": more organized, secure, and useful. The biggest failing of the default index of
