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[WIP] add post process to make timecode subtitles #944

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[WIP] add post process to make timecode subtitles #944

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479f856
fix typo
dericed Dec 1, 2025
e749e9b
add post-process to make a timecode vtt file
dericed Dec 1, 2025
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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
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17 changes: 16 additions & 1 deletion 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 @@ -2939,7 +2944,7 @@ if [[ "${DEVICE_INPUT_CHOICE}" = "0" ]] ; then
MP4NAME="${DIR}/${FULL_OUTPUT_ID}.mp4"
EXTRAOUTPUTS+=("${MIDDLEOPTIONS_ALL[@]}" -movflags write_colr+faststart "${RECORD_COMMAND_MP4[@]}" -pix_fmt yuv420p -c:v h264 -c:a aac -map "[mp4_v_out]" "${AUDIO_CHANNEL_MAP[@]}" "${MP4NAME}")
fi
if [[ "${FORMAT}" = "matroska" ]] ; then
if [[ "${FORMAT}" = "Matroska" ]] ; then
_review_option "EMBED_LOGS_CHOICE" "${EMBED_LOGS_OPTIONS[@]}"
fi
fi
Expand Down Expand Up @@ -3154,6 +3159,16 @@ 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
_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}" > "${TIMECODEXML_VTT}"
_mv_tmp_file "${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