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Post process subtitle wrap #949

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Merged
dericed merged 2 commits into from
Jan 22, 2026
Merged

Post process subtitle wrap #949

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f031be8
for subtitle generation remove the scc control characters
dericed Jan 16, 2026
5757d57
add post process to wrap captions as subs into the access mp4
dericed Jan 16, 2026
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1 change: 1 addition & 0 deletions Resources/vrecord_functions
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Original file line number Diff line number Diff line change
Expand Up @@ -89,6 +89,7 @@ _update_config_file(){
echo "DV_RESCUE_OPTION_TC=\"${DV_RESCUE_OPTION_TC}\""
echo "CC2VTT=\"${CC2VTT}\""
echo "CC2SRT=\"${CC2SRT}\""
echo "CAP2MP4=\"${CAP2MP4}\""
echo "MEDIA_ID_TYPE=\"${MEDIA_ID_TYPE}\""
echo "WEBVTT_EXTRA=\"${WEBVTT_EXTRA}\""
echo "HD_CHOICE=\"${HD_CHOICE}\""
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24 changes: 22 additions & 2 deletions vrecord
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Expand Up @@ -829,6 +829,11 @@ OPTIONAL_TOOLS_GUI=$(cat << CONFIG_FORM
<default>"${CC2SRT}"</default>
<variable>CC2SRT</variable>
</checkbox>
<checkbox>
<label>Wrap captions into Access MP4 file</label>
<default>"${CAP2MP4}"</default>
<variable>CAP2MP4</variable>
</checkbox>
</vbox>
</frame>
<frame FADGI WebVTT header>
Expand Down Expand Up @@ -3181,11 +3186,26 @@ if [[ "${DEVICE_INPUT_CHOICE}" = 0 ]] ; then
_mv_tmp_file "${CAPTION_TMP}" "${CAPTION_LOG}"
_eia608dump2scc "${CAPTION_LOG}" "${CAPTION_SCC}"
if [[ "${CC2VTT}" = 'true' ]] ; then
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${CAPTION_SCC}" "${CAPTION_SCC%.*}.vtt"
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${CAPTION_SCC}" -f webvtt - | sed -E 's/\\h//g; s/\{\\an[0-9]\}//g; s/<[^>]+>//g' > "${CAPTION_SCC%.*}.vtt"
_add_fadgi_header2vtt "${CAPTION_SCC%.*}.vtt"
fi
if [[ "${CC2SRT}" = 'true' ]] ; then
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${CAPTION_SCC}" "${CAPTION_SCC%.*}.srt"
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${CAPTION_SCC}" -f srt -c:s srt - | sed -E 's/\\h//g; s/\{\\an[0-9]\}//g; s/<[^>]+>//g' "${CAPTION_SCC%.*}.srt"
fi
if [[ "${CAP2MP4}" = 'true' && "${MP4_CHOICE}" = 'true' ]] ; then
if [[ -s "${CAPTION_SCC%.*}.vtt" ]] ; then
CAP2EMBED="${CAPTION_SCC%.*}.vtt"
elif [[ -s "${CAPTION_SCC%.*}.srt" ]] ; then
CAP2EMBED="${CAPTION_SCC%.*}.srt"
else
CAP2EMBED="$(_maketemp .vtt)"
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${CAPTION_SCC}" -f webvtt - | sed -E 's/\\h//g; s/\{\\an[0-9]\}//g; s/<[^>]+>//g' > "${CAP2EMBED}"
fi
_report -dt "Wrapping the extracted captions into the Access MP4 file..."
"${FFMPEG_BIN}" -nostdin -v 0 -y -i "${MP4NAME}" -i "${CAP2EMBED}" -map 0:v -map 0:a -map 1:s -c:v copy -c:a copy -c:s mov_text "${MP4NAME}.subs.mp4"
if [[ $? -eq 0 ]]; then
mv -v "${MP4NAME}.subs.mp4" "${MP4NAME}"
fi
fi
fi

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