1 files changed, 59 insertions, 0 deletions
diff --git a/ffmgrep.sh b/ffmgrep.sh
new file mode 100755
index 0000000..243c0c7
--- /dev/null
+++ b/ffmgrep.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# LOOKS THROUGH SUBTITLES OF GIVEN FILES TO FIND THE TIMESTAMP(S) OF INPUT STRING
+
+if (($# < 2)); then
+    echo >&2 "$0: script requires at least two arguments: Text to grep and at least one file with subtitles, in that order"
+    exit 1
+else
+    expr="$1"
+    shift
+fi
+
+FILES=()
+TMPDIR="ffmgrep.XXXXX"
+STREAM=0
+CACHEFLAG=0
+COLOR1="\o033[32m"
+COLOR2="\o033[36m"
+ENDCOLOR="\o033[0m"
+
+while (($#)); do
+    if [[ ! -f $1 ]]; then
+        echo >&2 "$0: $1 is not a valid file"
+        exit 1
+    else
+        FILES+=("$1")
+    fi
+    shift
+done
+
+# we do a little caching
+
+OLD_TMPDIR=$( ls -ltc /tmp/ | grep -E "^d.*ffmgrep\..{5}" | head -n1 | sed -r "s|.*(ffmgrep)|\/tmp\/\1|g" )
+
+if [[ ! -d "$OLD_TMPDIR" ]]; then
+    TMPDIR=$(mktemp --directory -t "$TMPDIR")
+else
+    for file in "${FILES[@]}"; do
+        basefile="$(basename "$file")"
+        if [[ ! -f "${OLD_TMPDIR}/${basefile%.*}.vtt" ]]; then
+            rm -r $OLD_TMPDIR
+            TMPDIR=$(mktemp --directory -t "$TMPDIR")
+            break
+        fi
+    done
+    [[ -d "$OLD_TMPDIR" ]] && TMPDIR="$OLD_TMPDIR" && CACHEFLAG=1
+fi
+
+for file in "${FILES[@]}"; do
+    [[ $CACHEFLAG -eq 1 ]] && break
+    basefile="$(basename "$file")"
+    [[ -z $(ffmpeg -i "$file" -c copy -map 0:s:0 -frames:s 1 -f null - -v 0 -hide_banner; echo $?) ]] && echo "NO SUBTITLES FOUND IN FILE $file. SKIPPING..." && continue
+    ffmpeg -i "$file" -map "0:s:${STREAM}" -hide_banner -loglevel error -f webvtt "${TMPDIR}/${basefile%.*}.vtt"
+done
+
+# grep -B 1 --no-group-separator -E -i "$expr" ${TMPDIR}/*vtt | awk 'NR%2{printf "%s ",$0;next;}1' | sed -r "s|${TMPDIR//\//\\\/}\/(.*?)\.vtt-([[:digit:]]+:[[:digit:]]+\.[[:digit:]]+ --> [[:digit:]]+:[[:digit:]]+\.[[:digit:]]+) .*?\.vtt:(.*$)|${COLOR1}\1${ENDCOLOR}: ${COLOR2}(\2)${ENDCOLOR} \3|g"
+
+grep --with-filename -r "" ${TMPDIR} | sed -r "s|.*\.vtt:$||g" | awk -v RS= '{$1=$1}1' | grep --no-group-separator -E -i "$expr" | sed -r "s|${TMPDIR//\//\\\/}\/[^\/]*\.vtt[-:]||2g; s|${TMPDIR//\//\\\/}\/(.*?)\.vtt[-:](([[:digit:]]+[:\.])+[[:digit:]]+ --> ([[:digit:]]+[:\.])+[[:digit:]]+) (.*$)|${COLOR1}\1${ENDCOLOR}: ${COLOR2}(\2)${ENDCOLOR} \5 |g"
+