Add files via upload

th.sh

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+#!/bin/bash
+# Script to generate thumbnails of a video and combine into one tile image.
+#
+# CAUTION:
+# FFprobe might fail to extract duration info from a MKV container. Use
+#     ffmpeg -i video.mkv -c:v copy -c:a copy video.mp4
+# to swap to an MP4 container.
+#
+# Dependencies:
+# 1. ffmpeg
+# 2. ImageMagick
+#
+# Usage:
+# ./th.sh NFRAMES TILE SIZE INPUT
+#
+# NFRAMES is the number of frames (thumbnails) to generate, e.g., 16;
+# TILE is in the form "MxN" (where M * N should match NFRAMES), e.g., 4x4;
+# SIZE is the length of the longer side of the output, e.g., 1920 if you want
+# to get an 1920*1080 output image;
+# INPUT is the path to the input file;
+# OUTPUT is the path to the output file (make sure intermediate directories
+# exist).
+#
+# Example:
+# ./thumbnails.sh 16 4x4 1920 video.mp4 thumbnails.png
+#
+# Credit:
+# http://goo.gl/vzXW1b (FFmpeg wiki: generate thumbnails)
+# http://stackoverflow.com/q/7395343 (extract video length)
+# http://apple.stackexchange.com/q/52879 (combine images)
+
+if [[ $# != 4 ]]; then
+    echo "wrong number of arguments
+
+Usage:
+./thumbnails.sh NFRAMES TILE SIZE INPUT
+
+NFRAMES is the number of frames (thumbnails) to generate, e.g., 16;
+TILE is in the form 'MxN' (where M * N should match NFRAMES), e.g., 4x4;
+SIZE is the length of the longer side of the output, e.g., 1920 if you want
+to get an 1920*1080 output image;
+INPUT is the path to the input file;
+OUTPUT is the path to the output file (make sure intermediate directories
+exist).
+
+Example:
+./th.sh 16 4x4 1920 video.mp4
+"
+    return 1
+fi
+#ffmpeg -start_at_zero -copyts -ss 00:00:14 -i Rammstein\ -\ Radio.mp4 -vf "drawtext=fontfile=/path/to/Arial.ttf:fontsize=45:fontcolor=yellow:box=1:boxcolor=black:x=(W-tw)/2:y=H-th-10:text='%{pts\:gmtime\:0\:%H\\\\\\:%M\\\\\:%S}'" -vframes 1 output.png
+
+NFRAMES=$1
+TILE=$2
+SIZE=$3
+INPUT=$4
+
+#DURATION=$(ffprobe -loglevel error -show_streams "$4" | grep duration= | cut -f2 -d= | head -1)
+DURX=$(ffmpeg -i "$4" 2>&1 | grep Duration | awk '{print $2}' | tr -d ,)
+DURATION=$(ffmpeg -i "$4" 2>&1 | grep "Duration"| cut -d ' ' -f 4 | sed s/,// | sed 's@\..*@@g' | awk '{ split($1, A, ":"); split(A[3], B, "."); print 3600*A[1] + 60*A[2] + B[1] }')
+RES=$(ffmpeg -i "$4" 2>&1 | grep -oP 'Stream .*, \K[0-9]+x[0-9]+')
+FILESIZE=$(du -sm "$4" | awk '{print $1}')
+# generate thumbnails in the /tmp folder
+TMPDIR=/tmp/thumbnails-${RANDOM}/
+mkdir $TMPDIR
+#filame
+
+for (( VARIABLE=0; VARIABLE<NFRAMES; VARIABLE++ ))
+do
+OFFSET=$(echo "scale=2;$VARIABLE*$DURATION/$NFRAMES+$DURATION/$NFRAMES/2" | bc)
+
+if [ $VARIABLE -gt 9 ];then
+  ZEROS="00"
+  if [ $VARIABLE -gt 99 ];then
+    ZEROS="0"
+    if  [ $VARIABLE -gt 999 ];then
+       ZEROS=""
+    fi
+  fi
+else
+  ZEROS="000"
+fi
+
+#ffmpeg -start_at_zero -copyts -ss $OFFSET -i "$4" -vf "drawtext=fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:fontsize=45:fontcolor=yellow:box=1:boxcolor=black:x=(W-tw)/2:y=H-th-10:text='%{pts\:gmtime\:0\:%H\\\\\\:%M\\\\\:%S}'" -vframes 1 ${TMPDIR}$ZEROS$VARIABLE.jpg
+ffmpeg -start_at_zero -copyts -ss $OFFSET -i "$4" -vf "drawtext=fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:fontsize=45:fontcolor=white::shadowcolor=black:shadowx=2:shadowy=2:box=1:boxcolor=black@0:x=(W-tw)/40:y=H-th-10:text='%{pts\:gmtime\:0\:%H\\\\\\:%M\\\\\:%S}'" -vframes 1 ${TMPDIR}$ZEROS$VARIABLE.jpg
+done
+montage ${TMPDIR}*.jpg -background white -geometry +5+5 -tile $TILE ${TMPDIR}output.jpg
+echo $4 >>${TMPDIR}myfile.txt
+echo $RES >>${TMPDIR}myfile.txt
+echo "$FILESIZE Mb" >>${TMPDIR}myfile.txt
+echo $DURX >>${TMPDIR}myfile.txt
+
+convert -size ${SIZE}x150 -fill black -interline-spacing 10 -background white -pointsize 20 -gravity west caption:@${TMPDIR}myfile.txt ${TMPDIR}text1.jpg
+
+
+convert ${TMPDIR}output.jpg -resize ${SIZE}x${SIZE} ${TMPDIR}th.jpg
+thewidth=$(identify -ping -format %w ${TMPDIR}th.jpg)
+convert ${TMPDIR}text1.jpg -crop ${thewidth}x150+0+0 ${TMPDIR}text.jpg
+
+
+montage ${TMPDIR}text.jpg ${TMPDIR}th.jpg -background white -geometry +0+0 -tile 1x2 thumbnails-${RANDOM}.jpg