Collection of some points regarding generation of timelapse pictures/videos using Linux. Example, taken with Galaxy S7.
adb shell "am start -a android.media.action.IMAGE_CAPTURE" \ && sleep 1 \ && adb shell "input keyevent 27"
while :; do echo -n "### "; date; adb shell "am start -a android.media.action.IMAGE_CAPTURE; sleep 1; input keyevent 27"; echo "### done"; sleep 58; # turned out the full loop was slightly <60sec done
Reading timestamp from the exif-field and adding it to the picture, and resize to fullhd:
mkdir tmp && cd tmp for i in ../2018*.jpg; do convert $i -fill white -undercolor '#00000080' \ -gravity Southeast -pointsize 48 -annotate +0+5 \ $(exif $i |grep 'Date and Time '|sed -e 's,.*|,,' \ -e 's, ,_,' -e 's,:[0123456789]*$,,') \ -resize 1920x $(echo $i|sed -e 's,\.,,'); done
mencoder mf://2018*.jpg -mf fps=25 -nosound -noskip -ovc copy -o mencoder2.avi
Problem with that: when watching, the format did jump around, bigger/smaller. 'mplayer -fs mencoder2.avi' worked ok.
Leave out the '-s 1920×1080' if you already resized with ImageMagick before.
ffmpeg -pattern_type glob -i "2018100*.jpg" -c:v libx265 \ -s 1920x1080 -movflags +faststart ffmpeg_1920x_x265.mkv