+ imgResize.sh & rotate.sh

dots/bash/.bashrc

@@ -203,22 +203,10 @@ nas() {
 # multimedia
 # ---
 
-# downstream() {
-#     output="output.mp4"
-# 	# https://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
-# 	if [[ -n $2 ]]; then
-# 		output=$2
-# 	fi
-# 	ffmpeg -i "$1" -c copy -bsf:a aac_adtstoasc "/home/poq/syncDir/0_downloads/${output}"
-# }
 #alias videoCompressor="/home/poq/syncDir/gitRepos/gi.op.fo/miniProjects/2104_videoCompressor/src/vc_v2.sh"
-# alias videoWatermark="/home/poq/syncDir/gitRepos/gi.op.fo/miniProjects/2104_videoCompressor/src/vcwm_v1.sh"
+#alias videoWatermark="/home/poq/syncDir/gitRepos/gi.op.fo/miniProjects/2104_videoCompressor/src/vcwm_v1.sh"
 #alias toJpg='/home/poq/syncDir/gitRepos/gi.op.fo/miniProjects/2306_toJpg/toJpg.sh'
 
-#imgResize() {
-#    /home/poq/syncDir/gitRepos/gi.op.fo/miniProjects/2305_imgResizer/resize.sh 1200 "$1" jpg
-#}
-
 # https://itsfoss.com/compress-pdf-linux/
 pdfCompress() {
     gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.5 -dPDFSETTINGS=/ebook \

dots/bash/obsolete.bashrc

@@ -360,3 +360,14 @@
 ---
 
 #alias keymap="setxkbmap -model pc105 -layout us,no -option grp:caps_toggle,grp_led:scroll"
+
+---
+
+# downstream() {
+#     output="output.mp4"
+# 	# https://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
+# 	if [[ -n $2 ]]; then
+# 		output=$2
+# 	fi
+# 	ffmpeg -i "$1" -c copy -bsf:a aac_adtstoasc "/home/poq/syncDir/0_downloads/${output}"
+# }

dots/bin/imgResize.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# 26.03.04 :: klevstul
+
+
+resize() {
+
+    test_integer() {
+        if ! [[ $1 =~ ^[1-9][0-9]*$ ]]; then
+            echo "error: variable (image width) must be an integer"
+            exit 1
+        fi
+    }
+
+    filename=$1                                     # ~/syncDir/0_downloads/frodeKlevstul.jpg
+    extension="${filename##*.}"                     # jpg
+    basename_without_ext="${filename%.*}"           # ~/syncDir/0_downloads/frodeKlevstul
+    basename_only="${basename_without_ext##*/}"     # frodeKlevstul
+
+    width=$2
+    width=${width:=1000}                            # default: 1000
+    test_integer ${width}                 # make sure the input (if given from the user) is valid
+
+    # scale=1000:-1:    resizes the image to a width of 1000 pixels, automatically calculating the height to preserve the original aspect ratio.
+    # -q:v 90:          sets the jpeg quality to 90 (lower values mean higher quality; 90 is a high quality setting for jpeg).
+
+    ffmpeg -i ${filename} -vf "scale=${width}:-1" -q:v 90 ${basename_without_ext}_rzd.jpg
+
+}
+
+
+this_file_name=`basename "$0"`
+if [ $# -lt 1 ]; then
+    echo "error: path to file is missing."
+    echo "usage: '$this_file_name [path_to_file] ([width (1000)])'"
+    exit 1
+fi
+
+resize $1 $2

dots/bin/rotate.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# 26.03.04 :: klevstul
+
+
+rotate() {
+
+    test_integer() {
+        if ! [[ $1 =~ ^[123]$ ]]; then
+            echo "error: variable (times to rotate) must be 1, 2, or 3"
+            exit 1
+        fi
+    }
+
+    filename=$1                                     # ~/syncDir/0_downloads/frodeKlevstul.jpg
+    extension="${filename##*.}"                     # jpg
+    basename_without_ext="${filename%.*}"           # ~/syncDir/0_downloads/frodeKlevstul
+    basename_only="${basename_without_ext##*/}"     # frodeKlevstul
+
+    times_to_rotate=$2                              # how many times to rotate 90 degrees
+    times_to_rotate=${times_to_rotate:=1}           # set to 1 if no value is given
+    test_integer ${times_to_rotate}                 # make sure the input (if given from the user) is valid
+
+    transpose="transpose=1"                         # add a transpose for each time to rotate
+    for ((i = 2; i <= ${times_to_rotate}; i++)); do
+        transpose+=",transpose=1"
+    done
+
+    # 90 degrees clockwise: transpose=1
+    # 90 degrees counterclockwise: transpose=2
+    # `-c:a copy` - ensures audio (if present) is copied without re-encoding (not applicable for images, but safe to include).
+    ffmpeg -i ${filename} -vf ${transpose} -c:a copy ${basename_without_ext}_rot.${extension}
+
+}
+
+
+this_file_name=`basename "$0"`
+if [ $# -lt 1 ]; then
+    echo "error: path to file is missing."
+    echo "usage: '$this_file_name [path_to_file] ([times_to_rotate_90_degrees (1)])'"
+    exit 1
+fi
+
+rotate $1 $2