user/transcribe_whisper.sh

   1 #!/bin/bash
   2 # Desc: Runs OpenAI Whisper on working directory media files
   3 # Usage: ./transcribe_whisper.sh [dir] 3
   4 # Input: arg1  input dir
   5 #        arg2  CUDA graphics card number (zero-indexed)
   6 # Version: 0.2.0
   7 # Depends: whisper ( https://github.com/openai/whisper )
   8
   9 # Find settings
  10 firegex=".+\(aac\|aif\|aiff\|flac\|m4a\|m4b\|mkv\|mp3\|mp4\|ogg\|opus\|wav\)$"; # update according to `find . -type f | grep -Eo "\.([[:alnum:]])+$" | sort -u`
  11 fsize="10k"; # default: minimum "10k"
  12 fdepth="10"; # find depth
  13
  14 yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
  15 die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
  16 must() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
  17 checkInt() {
  18     # Desc: Checks if arg is integer
  19     # Usage: checkInt arg
  20     # Input: arg: integer
  21     # Output: - return code 0 (if arg is integer)
  22     #         - return code 1 (if arg is not integer)
  23     # Example: if ! checkInt $arg; then echo "not int"; fi;
  24     # Version: 0.0.2
  25     local returnState
  26
  27     #===Process Arg===
  28     if [[ $# -ne 1 ]]; then
  29         die "ERROR:Invalid number of arguments:$#";
  30     fi;
  31
  32     RETEST1='^[0-9]+$'; # Regular Expression to test
  33     if [[ ! "$1" =~ $RETEST1 ]] ; then
  34         returnState="false";
  35     else
  36         returnState="true";
  37     fi;
  38
  39     #===Determine function return code===
  40     if [ "$returnState" = "true" ]; then
  41         return 0;
  42     else
  43         return 1;
  44     fi;
  45 } # Checks if arg is integer
  46 find_flist() {
  47     # Desc: print file list to stdout via `find` using script parameters
  48     # Input: arg1:          path to dir
  49     #        var:  fdepth   find depth
  50     #        var:  firegex  pattern find iregex
  51     #        var:  fsize    find size
  52     if [[ ! -d "$1" ]]; then return 1; fi;
  53     must find "$1" -maxdepth "$fdepth" -type f -iregex "$firegex" -size +"$fsize";
  54 }; # print file list to stdout from dir with script parameters
  55 main() {
  56     # Input: arg1: dir_in    input dir
  57     #        arg2  cuda_num  cuda GPU index
  58     #        var:  fdepth    (find_flist) find depth
  59     #        var:  firegex   (find_flist) pattern find iregex
  60     #        var:  fsize     (find_flist) find size
  61     dir_in="$1";
  62     cuda_num="$2";
  63     if ! checkInt "$cuda_num"; then die "FATAL:No graphics card selected."; fi;
  64     while read -r line; do
  65         echo "STATUS:Processing:$line" 1>&2;
  66         SECONDS=0;
  67         dir_out="$(dirname "$line"; )";
  68         ftmp="$line".tmp;
  69         #declare -p line dir_out ftmp; # debug
  70         if [[ ! -f "$ftmp" ]] && \
  71                [[ ! -f "${line%.*}".srt ]] && \
  72                [[ ! -f "${line%.*}".vtt ]] && \
  73                [[ ! -f "${line%.*}".txt ]] && \
  74                [[ ! -f "${line%.*}".tsv ]] && \
  75                [[ ! -f "${line%.*}".json ]]; then
  76             touch "$ftmp";
  77             yell "STATUS:No conflicts detected.";
  78         else
  79             yell "STATUS:Skipping:$line";
  80             continue;
  81         fi;
  82         whisper "$line" \
  83                 --model large-v3 \
  84                 --output_format all \
  85                 --output_dir "$dir_out" \
  86                 --language en \
  87                 --device cuda:"$cuda_num" && \
  88             (
  89                 echo "STATUS:$SECONDS:Finished:$line" 1>&2;
  90                 rm "$ftmp"; # remove .tmp file
  91             );
  92     done < <(find_flist "$dir_in");
  93 }; # main program
  94 export -f yell die must find_flist;
  95
  96 main "$@";
  97
  98