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prevent lame from resampling

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This commit is contained in:
Vincent Riquer 2013-03-15 18:21:53 +01:00
parent 8f9e8f73bf
commit 121e586b08
3 changed files with 57 additions and 4 deletions
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48
atom
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@ -23,6 +23,7 @@ declare -A \
destinationpath \
destinationquality \
destinationrename \
destinationnoresample \
destinationrenamepath \
destinationskipmime \
|| {
@ -218,6 +219,21 @@ getConfigDestination() {
unset expr
destinationfrequency["$destination"]=$value
;;
'noresample')
case $value in
'true'|'on'|'yes')
destinationnoresample["$destination"]=1
;;
'false'|'off'|'no')
destinationnoresample["$destination"]=0
;;
*)
echo "noresample takes values:" \
"'yes' ,'true' ,'on', 'no', 'false',"\
"'off'"
;;
esac
;;
'rename')
case "$value" in
*/*)
@ -1076,6 +1092,38 @@ encodeFile::mp3() {
[ -n "$title" ] && lameopts+=" --tt \"$title\""
[ -n "$track" ] && lameopts+=" --tn \"$track\""
[ -n "$year" ] && lameopts+=" --ty \"$year\""
if (( ${destinationnoresample[$destination]:-0} == 1 ))
then
# If 'rate' is not one of these value, it cannot be encoded to
# MP3, in which case we'd be better of letting lame decide which
# rate to use.
if [ -n "${destinationfrequency["$destination"]}" ]
then
case ${destinationfrequency["$destination"]} in
48000) lameopts+=" --resample 48" ;;
44100) lameopts+=" --resample 44.1" ;;
32000) lameopts+=" --resample 32" ;;
24000) lameopts+=" --resample 24" ;;
22050) lameopts+=" --resample 22.05" ;;
16000) lameopts+=" --resample 16" ;;
12000) lameopts+=" --resample 12" ;;
11025) lameopts+=" --resample 11.025" ;;
8000) lameopts+=" --resample 8" ;;
esac
else
case $rate in
48000) lameopts+=" --resample 48" ;;
44100) lameopts+=" --resample 44.1" ;;
32000) lameopts+=" --resample 32" ;;
24000) lameopts+=" --resample 24" ;;
22050) lameopts+=" --resample 22.05" ;;
16000) lameopts+=" --resample 16" ;;
12000) lameopts+=" --resample 12" ;;
11025) lameopts+=" --resample 11.025" ;;
8000) lameopts+=" --resample 8" ;;
esac
fi
fi
encodetaskid=$(
Insert tasks <<-EOInsert
key ${fileid}lame$destination

4
doc/config
View File

@ -92,3 +92,7 @@ Sections:
MP3 parameters:
* bitrate <bitrate>: Set ABR to <bitrate>. Again, if you want CBR or any
other mode supported by lame, please fork and file a pull request.
* noresample <yes>/<no>: LAME may decide to encode your file to a lower
sampling-rate if you use a low bitrate. Setting this to yes will
append --resample <original file's rate>, preventing any resampling from
happening.

9
doc/example.cfg
View File

@ -25,14 +25,15 @@ copy_mime-type image/*
copy_mime-type text/*
[MP3]
path /mnt/Musique-mp3.test
format mp3
bitrate 96
path /mnt/Musique-mp3.test
format mp3
bitrate 96
noresample yes
normalize yes
higher-than 128
# rename file, path unchanged
rename %{track}--%{artist}-%{title}
rename %{track}--%{artist}-%{title}
# change the whole filepath
#rename %{genre}/%{albumartist}/%{year}-%{album}/%{track}--%{artist}-%{title}
skip_mime-type image/*