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add post process to make timecode subtitles #944

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add post process to make timecode subtitles #944

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b60f603
add post-process to make a timecode vtt file
dericed Dec 1, 2025
4ee5cdb
add in option to get ALL the timecode
dericed Jan 12, 2026
dc33c9e
fix typo in timecode post-processing
dericed Jan 12, 2026
e27ccfd
add nostdin to timecode scanner
dericed Jan 16, 2026
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2 changes: 2 additions & 0 deletions Resources/vrecord_functions
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,7 @@ _update_config_file(){
echo "QCTOOLSXML_CHOICE=\"${QCTOOLSXML_CHOICE}\""
echo "MP4_CHOICE=\"${MP4_CHOICE}\""
echo "FRAMEMD5_CHOICE=\"${FRAMEMD5_CHOICE}\""
echo "TIMECODEVTT_CHOICE=\"${TIMECODEVTT_CHOICE}\""
echo "EMBED_LOGS_CHOICE=\"${EMBED_LOGS_CHOICE}\""
echo "PLAYBACKVIEW_CHOICE=\"${PLAYBACKVIEW_CHOICE}\""
echo "PLAYBACKVIEW_CHOICE_PASS=\"${PLAYBACKVIEW_CHOICE_PASS}\""
Expand Down Expand Up @@ -265,6 +266,7 @@ _get_summary(){
echo "Auxiliary files created in ${LOGDIR}"
echo "Access MP4: ${MP4_CHOICE}"
echo "Frame MD5s: ${FRAMEMD5_CHOICE}"
echo "Timecode VTT: ${TIMECODEVTT_CHOICE}"
echo "QCTools XML: ${QCTOOLSXML_CHOICE}"
echo "Playback: ${PLAYBACKVIEW_CHOICE} view (for recording) and ${PLAYBACKVIEW_CHOICE_PASS} view (for passthrough)"
elif [ "${DEVICE_INPUT_CHOICE}" = "1" ] ; then
Expand Down
20 changes: 17 additions & 3 deletions vrecord
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Expand Up @@ -776,6 +776,11 @@ SIDECAR_FILES_GUI="
<default>\"${FRAMEMD5_CHOICE}\"</default>
<variable>FRAMEMD5_CHOICE</variable>
</checkbox>
<checkbox tooltip-text=\"If enabled, this will make a vtt file alongside any Matroska that captured timecode.\">
<label>Timecode VTT</label>
<default>\"${TIMECODEVTT_CHOICE}\"</default>
<variable>TIMECODEVTT_CHOICE</variable>
</checkbox>
</vbox>
$(_gtk_vbox_list "QCTOOLSXML_CHOICE" "180" "QCTools XML?" "${QCTOOLSXML_OPTIONS[@]}")
</hbox>
Expand Down Expand Up @@ -1547,7 +1552,7 @@ _edit_mode(){
echo "Timecode Type | Timecode Value"
echo "--------------|---------------"
for timecode_type in "${TIMECODE_OPTIONS[@]}" ; do
tc_value="$("${FFMPEG_BIN}" -timecode_format "${timecode_type}" "${GRAB_INPUT[@]}" -loglevel info 2>&1 | grep " timecode " | cut -d ":" -f2- | sed 's/ //g')"
tc_value="$("${FFMPEG_BIN}" -nostdin -timecode_format "${timecode_type}" "${GRAB_INPUT[@]}" -loglevel info 2>&1 | grep " timecode " | cut -d ":" -f2- | sed 's/ //g')"
printf " %-11s | %-12s \n" "${timecode_type}" "${tc_value:-none}"
done
echo "--------------|---------------"
Expand Down Expand Up @@ -1914,7 +1919,7 @@ _lookup_choice(){
S_RATE='-ar 44.1k'
MIDDLEOPTIONS_PRES+=(${S_RATE}) ;;
# timecode options
"none"|"rp188vitc"|"rp188vitc2"|"rp188ltc"|"rp188any"|"vitc"|"vitc2"|"serial")
"none"|"all"|"rp188vitc"|"rp188vitc2"|"rp188ltc"|"rp188any"|"vitc"|"vitc2"|"serial")
TC_TYPE="${1}"
TC_INPUT_OPTION=(-timecode_format "${TC_TYPE}")
MIDDLEOPTIONS_PRES+=(-map_metadata 0:s:v:0)
Expand Down Expand Up @@ -2774,7 +2779,7 @@ NTSC_169_SAR_OPTIONS=("40/33" "32/27" "6/5" "5760/4739")
PAL_43_SAR_OPTIONS=("12/11" "16/15" "128/117")
PAL_169_SAR_OPTIONS=("16/11" "64/45" "512/351")
CHANNEL_MAPPING_OPTIONS=("2 Stereo Tracks (Channels 1 & 2 -> 1st Track Stereo, Channels 3 & 4 -> 2nd Track Stereo)" "1 Stereo Track (From Channels 1 & 2)" "1 Stereo Track (From Channels 3 & 4)" "Channel 1 -> 1st Track Mono, Channel 2 -> 2nd Track Mono" "Channel 2 -> 1st Track Mono, Channel 1 -> 2nd Track Mono" "Channel 1 -> Single Track Mono" "Channel 2 -> Single Track Mono")
TIMECODE_OPTIONS=("none" "rp188vitc" "rp188vitc2" "rp188ltc" "rp188any" "vitc" "vitc2" "serial")
TIMECODE_OPTIONS=("none" "all" "rp188vitc" "rp188vitc2" "rp188ltc" "rp188any" "vitc" "vitc2" "serial")
if [[ ${HD_CHOICE} != "true" ]] ; then
STANDARD_OPTIONS=("NTSC" "PAL")
else
Expand Down Expand Up @@ -3165,6 +3170,15 @@ if [[ "${DEVICE_INPUT_CHOICE}" = 0 ]] ; then
_report -d "QCTools analysis is complete."
fi

# make a timecode vtt
if [[ "${TIMECODEVTT_CHOICE}" = "true" ]] && [[ "${FORMAT}" = "matroska" ]] && [[ -n "${TIMECODE_CHOICE}" ]] && [[ "${TIMECODE_CHOICE}" != "none" ]] ; then
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@retokromer retokromer Jan 16, 2026

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matroska > Matroska ?
like in line 2958

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@dericed dericed Jan 16, 2026

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thx, i dropped that commit

_report -d "Working on the timecode vtt file..."
TIMECODEXML_TMP="$(_maketemp .mediatimecode.txt)"
TIMECODEXML_VTT="${LOGDIR}/${FULL_OUTPUT_ID}.timecode.vtt"
mediainfo --ParseSpeed=1 --Output=TimeCodeXML "${VRECORD_OUTPUT}" > "${TIMECODEXML_TMP}"
# need to test if timecode file has any data or not before committing to a vtt
timecodexml2webvtt "${TIMECODEXML_TMP}" > "${TIMECODEXML_VTT}"
fi
# check for discontinuities in the Frame MD5s; if user chose not to use Frame MD5s, check for frame discontinuties in the FFmpeg file
if [[ "${FRAMEMD5_CHOICE}" = "true" ]] ; then
PTS_DISCONTINUITY=$(cat "${FRAMEMD5NAME}" | grep -v "^#" | cut -d, -f3 | sed 's/ //g' | grep -v "^0$" | awk '{if($1!=p+1){if(p+1==$1-1){printf p+1" "}else{printf p+1"-"$1-1" "}}{p=$1}}')
Expand Down