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transcode : refactor & place output in the same dir.

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Dmitry Voronin 2023-11-27 20:12:35 +03:00
parent 8cfac6ec7c
commit e0614f206c
1 changed files with 41 additions and 25 deletions
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66
.config/bash/module/transcode.sh
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@ -31,6 +31,7 @@ transcode()
local from="${target##*.}"
local to="${format}"
local status="[${count}/${total}] ${target} -> ${target%.*}.${to}"
local output="${target#../}"
# Show status.
echo -e "${status}"
@ -47,25 +48,28 @@ transcode()
# Send convert.
case "${from}-${to}" in
"gz-xz"|"tgz-txz")
_transcode_gz-xz "${target}"
output="${output%gz}xz"
_transcode_gz-xz "${target}" "${output}"
;;
"xz-gz"|"txz-tgz")
_transcode_xz-gz "${target}"
output="${output%xz}gz"
_transcode_xz-gz "${target}" "${output}"
;;
"-mp3")
_transcode_mp3 "${target}"
;;
"-av1")
_transcode_av1 "${target}"
output="${output%.*}.mp3"
_transcode_mp3 "${target}" "${output}"
;;
"-flac")
_transcode_flac "${target}"
output="${output%.*}.flac"
_transcode_flac "${target}" "${output}"
;;
"-mka")
_transcode_mka "${target}"
output="${output%.*}.mka"
_transcode_mka "${target}" "${output}"
;;
"-mkv")
_transcode_mkv "${target}"
output="${output%.*}.mkv"
_transcode_mkv "${target}" "${output}"
;;
*)
echo -e "${color_yellow}Conversion ${target##*.}-${to} not supported.${color_default}"
@ -88,44 +92,56 @@ transcode()
_transcode_gz-xz()
{
pv "${1}" | gzip -d | xz -9e > "${1%gz}xz"
pv "${1}" | gzip -d | xz -9e > "${2}"
}
_transcode_xz-gz()
{
pv "${1}" | xz -d | gzip -1 > "${1%xz}gz"
pv "${1}" | xz -d | gzip -1 > "${2}"
}
_transcode_mp3()
{
ffmpeg -i "${1}" -c:a libmp3lame -b:a 320k -f mp3 "${1%.*}.mp3"
ffmpeg -i "${1}" -c:a libmp3lame -b:a 320k -f mp3 "${2}"
}
_transcode_flac()
{
ffmpeg -i "${1}" -c:a flac -f flac "${1%.*}.flac"
ffmpeg -i "${1}" -c:a flac -f flac "${2}"
}
_transcode_mka()
{
ffmpeg -i "${1}" -c:a libopus -b:a 128k -vn "${1%.*}.mka"
ffmpeg -i "${1}" -c:a libopus -b:a 128k -vn "${2}"
}
_transcode_mkv()
{
# Calculate keyframe int.
local fps=$(ffprobe -v 0 -of csv=p=0 -select_streams v:0 -show_entries stream=r_frame_rate "${1}")
fps="${fps%%/*}"
local keyint=$((fps*5))
# Calculate audio bitrate.
local braudio=$(ffprobe -v error -select_streams a:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 "${1}")
braudio=$((braudio/1024))
local keyint=$(_ffprobe_keyint "${1}")
local braudio=$(_ffprobe_ba "${1}")
[[ ${braudio} -gt 128 ]] && braudio=128
# Convert.
ffmpeg -i "${1}" -c:a libopus -b:a ${braudio}k -c:v libsvtav1 -crf 30 -svtav1-params "fast-decode=1:tune=0" -preset 6 -g ${keyint} -vf "scale=-1:min'(1080,ih)'" "${1%.*}.mkv"
ffmpeg -i "${1}" -c:a libopus -b:a ${braudio}k -c:v libsvtav1 -crf 30 -svtav1-params "fast-decode=1:tune=0" -preset 6 -g ${keyint} -vf "scale=-1:min'(1080,ih)'" "${2}"
}
_ffprobe_fps()
{
local fps=$(ffprobe -v 0 -of csv=p=0 -select_streams v:0 -show_entries stream=r_frame_rate "${1}")
fps="${fps%%/*}"
echo "${fps}"
}
_ffprobe_keyint()
{
local fps=$(_ffprobe_fps "${1}")
echo $((fps*5))
}
_ffprobe_ba()
{
local ba=$(ffprobe -v error -select_streams a:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 "${1}")
echo $((ba/1024))
}
# Export.
export -f transcode _transcode_gz-xz _transcode_xz-gz _transcode_mp3 _transcode_flac _transcode_mka _transcode_mkv
export -f transcode _transcode_gz-xz _transcode_xz-gz _transcode_mp3 _transcode_flac _transcode_mka _transcode_mkv _ffprobe_keyint _ffprobe_ba _ffprobe_fps