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| -rwxr-xr-x | bin/livedump | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/bin/livedump b/bin/livedump new file mode 100755 index 0000000..77b2add --- /dev/null +++ b/bin/livedump @@ -0,0 +1,48 @@ +#!/bin/sh +# +# Usage: livedump [FORMAT [BASEPATH [SESSIONPATTERN [SEGMENTPATTERN]]]] +# +# Patterns are fed through "date +PATTERN" +# +# Examples: livedump +# livedump dv ./dump /%Y%m%d/%H%M%S /%H%M%S +# +# (examples are effectively identical, the latter showing defaults) +# +# Description: Save live source to file and append if interupted. +# By default captures IEC61883 DVCPRO stream from IEEE1394 (Firewire) +# device, some of which apparently sustaining streams max. 17 minutes. +# +# Depends: ffmpeg + +set -eu + +FORMAT=${1:-dv} +BASEPATH=${2:-./dump} +SESSIONPATTERN=${3:-/%Y%m%d/%H%M%S} +SEGMENTPATTERN=${4:-/%H%M%S} + +case $FORMAT in + dv) + set -- \ + -f iec61883 -i auto \ + -f dv -timecode "$(date +%H:%M:%S.00)" -codec copy + SUFFIX=dv + ;; +esac + +LINKPATH="$LINKSTEM.$SUFFIX" +SESSIONSTEM=$(date +"$TARGETPATTERN") +SESSIONPATH="$SESSIONSTEM.$SUFFIX" + +mkdir -p "$(dirname "$LINKPATH" "$SESSIONPATH")" +touch "$SESSIONPATH" +[ -z "$LINKPATH" ] | ln -fs "$SESSIONPATH" "$LINKPATH" +while true; do + SEGMENTSTEM=$(date +"$SEGMENTPATTERN") + LOGPATH="$BASEPATH$SESSIONSTEM$SEGMENTSTEM.log" + mkdir -p "$LOGPATH" + FFREPORT="file=$LOGPATH" \ + ffmpeg -hide_banner "$@" pipe: \ + >> "$SESSIONPATH" +done |