commit 42f6a4ef5eb824b4ca6688fa11718f6bbbde6bf1
Author: Kar <kar@siliconpin.com>
Date:   Thu Oct 27 19:36:51 2022 +0530

    init

diff --git a/DASH-ffmpeg-VP9-encoder.sh b/DASH-ffmpeg-VP9-encoder.sh
new file mode 100644
index 0000000..4d70bdc
--- /dev/null
+++ b/DASH-ffmpeg-VP9-encoder.sh
@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+
+# Prepare the videos to be used over http with the MPEG-DASH protocol
+# The vp9 codec is used for the videos because h265 is not supported by chrome and h264 is too big
+# This script generates webm files
+
+## DOCS
+# https://developers.google.com/media/vp9/settings/vod/
+# https://developer.mozilla.org/en-US/docs/Web/HTML/DASH_Adaptive_Streaming_for_HTML_5_Video
+# http://wiki.webmproject.org/adaptive-streaming/instructions-to-playback-adaptive-webm-using-dash
+
+# ffprobe: https://trac.ffmpeg.org/wiki/FFprobeTips
+
+## PRE-REQUIRED-INSTALLATION : ffmpeg and libwebm
+# OSX: brew install ffmpeg --with-libvpx --with-libvorbis
+# Debian:
+
+set -eo pipefail
+
+INPUT=$1
+OUTPUT_DIR=$2
+DASH_PARAMS="-keyint_min 150 -g 150 -an -f webm -dash 1"
+LOG_LEVEL="-hide_banner -loglevel info"
+
+# Checks
+if [[ -z $(which ffmpeg) ]]; then echo "Error: ffmpeg is not installed"; exit 1; fi
+if [[ $# -ne 2 ]]; then echo "Usage: mp4_to_dash input_file.mp4 output_directory"; exit 1; fi
+if [[ ! -f ${INPUT} ]]; then echo "Error: input_file not found"; exit 1; fi
+if [[ ! -d ${OUTPUT_DIR} ]]; then echo "Error: output_directory not found"; exit 1; fi
+
+# create new directory using the name of the video
+f=$(basename $INPUT)
+f=${f%.*} # name without extension, and without base
+rm -rf ${OUTPUT_DIR}/${f}
+mkdir -p ${OUTPUT_DIR}/${f}
+prefix=${OUTPUT_DIR}/${f}/${f}
+
+encode_audio() {
+  ffmpeg $LOG_LEVEL -i "$INPUT" -c:a libvorbis -b:a 128k -vn -f webm -dash 1 -y "${prefix}-audio-128k.webm"
+}
+
+getHeight() {
+  ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=noprint_wrappers=1:nokey=1 "$INPUT"
+}
+
+encode(){
+  size_params=$1
+  output=$2
+  echo "ffmpeg $LOG_LEVEL -i $INPUT -c:v libvpx-vp9 $size_params $DASH_PARAMS -pass 1 -speed 4 -y $output"
+  ffmpeg $LOG_LEVEL -i $INPUT -c:v libvpx-vp9 $size_params $DASH_PARAMS -pass 1 -speed 4 -y $output && \
+  ffmpeg $LOG_LEVEL -i $INPUT -c:v libvpx-vp9 $size_params $DASH_PARAMS -pass 2 -speed 4 -y $output
+}
+
+encode_240p() {
+  size="320x240"
+  size_params="-s ${size} -b:v 150k -minrate 75k -maxrate 218k -tile-columns 0 -threads 2 -quality good -crf 37"
+  encode "$size_params" "${prefix}-${size}.webm"
+}
+
+encode_360p() {
+  size="640x360"
+  size_params="-s ${size} -b:v 276k -minrate 138k -maxrate 400k -tile-columns 1 -threads 4 -quality good -crf 36"
+  encode "$size_params" "${prefix}-${size}.webm"
+}
+
+encode_720p() {
+  size="1280x720"
+  size_params_30f="-s ${size} -b:v 1024k -minrate 512k -maxrate 1485k -tile-columns 2 -threads 8 -quality good -crf 32"
+  encode "size_params_30f" "${prefix}-${size}-30f.webm"
+
+  size_params_60f="-s ${size} -b:v 1800k -minrate 900k -maxrate 2610k -tile-columns 2 -threads 8 -quality good -crf 32"
+  encode "$size_params_60f" "${prefix}-${size}-60f.webm"
+}
+
+video_original_height=$(getHeight)
+encode_audio
+encode_360p
+if [[ "$video_original_height" -ge "720"  ]]; then encode_720p;  fi
diff --git a/check-mime b/check-mime
new file mode 100644
index 0000000..ea36d20
--- /dev/null
+++ b/check-mime
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+#       mime=$(file -b --mime-type dog.jpeg)
+mime=$(mimetype https://bscdn.sgp1.digitaloceanspaces.com/CurriculumApp/IK3/Week8/Core/Day4/AudioVisual/1RBE12.wmv)
+echo $mime
+if [[ $mime = video/@(x-ms-wmv|wmv) ]]; then
+    echo "need conversion"
+fi
diff --git a/do-conversion-wmv b/do-conversion-wmv
new file mode 100644
index 0000000..0308b0f
--- /dev/null
+++ b/do-conversion-wmv
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+#./filter-wmv tree.txt > tree-wmv.txt
+rclone lsf -R bscdn:bscdn/CurriculumApp-og > tree.list
+touch tree-wmv.list
+touch wmv-converted.list
+touch wmv-converted-uploaded.list
+touch wmv-removed.list
+
+#filename=$1
+filename=tree.list
+#echo Start
+while read p; do
+if [ "${p: -4}" == ".wmv" ]; then
+  fileog="https://bscdn.sgp1.digitaloceanspaces.com/CurriculumApp-og/${p}"
+  filetarget="https://bscdn.sgp1.digitaloceanspaces.com/CurriculumApp/${p}"
+  fName="$(basename -- $fileog)"
+  fDir="$(dirname -- $p)"
+   #echo F- "$fileog" -F
+  fWebm="${fName}.webm"
+  MediaType=$(mediainfo --Inform="General;%Format%" $filetarget)
+  if [ "$MediaType" == "WebM" ]; then
+    #echo $'\u2714\u274c'
+    echo -e $'\u2714' "$fileog"
+  else
+   echo -e $'\u274c' "$fileog\n Downloading"
+   wget "$fileog"
+   echo "converting $fName to $fWebm"
+   ffmpeg -loglevel error -i "$fName" -c:v libvpx-vp9 -c:a libopus "$fWebm" 2> /dev/null
+   echo "$fName" >> wmv-converted.list
+   mv "$fWebm" "$fName"
+   rclone delete bscdn:bscdn/CurriculumApp/"$p"
+   echo "$fName" >> wmv-removed.list
+   rclone copy "$fName" bscdn:bscdn/CurriculumApp/"$fDir"
+   echo "$fName" >> wmv-converted-uploaded.list
+   rm "$fName"
+   #sleep 100
+   #read -p "Press enter to continue"
+  fi
+fi
+done < "$filename"
diff --git a/filter-file-ext-from-text-file b/filter-file-ext-from-text-file
new file mode 100644
index 0000000..9e9c3ec
--- /dev/null
+++ b/filter-file-ext-from-text-file
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+#./filter-wmv tree.txt > tree-wmv.txt
+rclone ls bscdn:bscdn/CurriculumApp > tree.txt
+#filename=$1
+filename=tree.txt
+echo Start
+while read p; do
+if [ "${p: -4}" == ".wmv" ]; then
+    echo "$p"
+fi
+done < "$filename"