131 lines
3.9 KiB
Bash
Executable File
131 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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set -e
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set -x
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chanid=$1
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starttime=$2
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skip_or_cutlist=$3
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if test "$skip_or_cutlist" = "cutlist" -o "$skip_or_cutlist" = "skiplist"; then
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echo skip_or_cutlist set to ${skip_or_cutlist} by "\$3"
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else
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if test "$A1" = "cutlist" -o "$A1" = "skiplist"; then
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skip_or_cutlist="$A1"
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else
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echo Setting skip_or_cutlist to cutlist
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skip_or_cutlist="cutlist"
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fi
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fi
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overwrite=${overwrite:-1}
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updatedb=${updatedb:-1}
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# 1071_20190127040000.ts
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function get_cut_list {
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cmd="mythutil --quiet --get${skip_or_cutlist} --chanid $chanid --starttime $starttime | awk -v RS=': +' -v OFS=' ' '/^[0-9]/{gsub(/-/,\",\"); print \$1}'"
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$debug $cmd
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}
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function ffmpeg_concat {
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## use solution from stackoverflow ffmpeg concat video and audio out of sync
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## this may be overkill and unneeded?
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outsave_ffconcat="$1"
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files=$(tail -n +2 "$outsave_ffconcat" | cut -d' ' -f 2)
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for f in $files; do
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outf=${workdir}/${f/.${ending}/_tmp.${ending}}
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inf=${workdir}/$f
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$ffmpeg -y -i "$inf" -map 0 -c:a ac3 -af apad -c:v copy -shortest -avoid_negative_ts make_zero -fflags +genpts "$outf"
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if test $? -eq 0; then
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mv "$outf" "$inf"
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else
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echo Error generating $outf. Halt
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exit 10
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fi
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done
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$ffmpeg -y -f concat -safe 0 -i $outsave_ffconcat -codec copy -map 0 -metadata \"service_name=$0\" $outfile
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}
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framelist="$(get_cut_list)"
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if test -z "$framelist"; then
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echo Empty frame list with skip_or_cutlist=$skip_or_cutlist. Stop.
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exit 0
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else
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echo Frame list: $framelist.
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fi
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framelist0=${framelist:0:1}
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if test "0" = "$framelist0"; then
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inclbeginning=1
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framelist=${framelist:2}
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else
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inclbeginning=0
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fi
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echo Cutting every other window beginning with $((1-inclbeginning)).
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echo Frame list: $framelist
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if ! test -d $workdir; then
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mkdir $workdir
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chmod 1777 $workdir
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fi
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fileroot="${chanid}_${starttime}"
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# should get infile from recorded.basename in db
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infile=$(ls ${recordingsdir}/${fileroot}.{mpg,ts,mkv,mp4} 2>/dev/null | sort -u | head -n 1)
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out_ffconcat="${workdir}/${fileroot}.ffconcat"
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outsave_ffconcat="${workdir}/${fileroot}-save.ffconcat"
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ending=$(echo "$infile" | awk -v FS='.' '{print $NF}')
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outfile_tmp="${workdir}/${fileroot}_%05d.${ending}"
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outfile="${workdir}/${fileroot}.${ending}"
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if test -z "$infile"; then
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echo Did not find input file. Stop.
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exit 8
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fi
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if ! test -r "$infile"; then
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echo File "$infile" is not readable. Stop.
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exit 8
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fi
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if test -z "$ending"; then
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echo Did not find file ending. Stop.
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exit 9
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fi
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## https://superuser.com/questions/710008/how-to-get-rid-of-ffmpeg-pts-has-no-value-error/
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ffmpegcut="$ffmpeg -fflags '+genpts' -ignore_unknown -y -i \"$infile\" -codec copy -map 0 -map -0:d -f segment -segment_list \"$out_ffconcat\" -segment_frames \"$framelist\" \"${outfile_tmp}\""
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echo $ffmpegcut
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eval $ffmpegcut
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if test $? -ne 0; then
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echo "Error in ffmpeg command. Halt."
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exit 2
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fi
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match="1{p};"
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n=$(cat $out_ffconcat | wc -l)
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for((i=$((inclbeginning+2));i<$n;i=i+2)); do
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match="${match}$i{p};"
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done
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echo $match
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sed -n -e "${match}" $out_ffconcat > $outsave_ffconcat
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if ! test -r $outsave_ffconcat; then
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echo File $outsave_ffconcat not created. Halt.
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exit 3
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fi
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nlines=$(wc -l $outsave_ffconcat | cut -d' ' -f 1)
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if test "x$nlines" = "x2"; then
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mv $workdir/$(tail -n 1 $outsave_ffconcat | cut -d' ' -f 2) $outfile
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else
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ffmpeg_concat "$outsave_ffconcat"
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fi
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if test $? -ne 0; then
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echo Concat failed. Halt.
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exit 4
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else
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touch --reference="$infile" "$outfile"
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if test $overwrite -ne 0; then
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mv $outfile $destdir/.
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# only update the db if we overwrite the recording
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if test $updatedb -ne 0; then
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myth-rebuild-seektable.sh $chanid $starttime $workdir
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fi
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fi
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fi
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exit 0
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## (export path=/var/lib/mythtv/recordings/; export file=1031_20181128070100.ts; /usr/local/bin/ffmpeg -y -i ${path}/${file} -f lavfi -i movie=${path}/${file}[out0+subcc] -preset slow -crf 21 -map 0:a -map 1 -map_metadata 1:s:0 -metadata:s:s "language=fre" ${file/.ts/1.mkv})
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##
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