| View previous topic :: View next topic |
| Author |
Message |
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
 Posted: Tue Feb 15, 2005 1:52 am Post subject: a "shuffle" for you iPod shuffle (or any portable |
 |
|
OK, after I got my iPod shuffle and getting gnupod-0.87-RC1 to writing files to it, I wanted a simple solution to dig through my mp3 collection, select <512MB of MP3's and move them to the iPod using gnupod-addsong.pl
here's my bash script solution (works in one directory tree only, yet):
* you have to execute the script in your MP3 root - or modify the find command to look at the right position
* you should check the MAXSIZE, it should match your players size (or the size of data you want to store)
* you should change the "copy command" to something that fits your needs. in my case it would be gnupod-addsong.pl $FILENAME
I hope anyone can make use of it - or improve it. I'd like to add some checks, like, only select songs from genre's by reading the ID3 tags - but that might be a job for perl... 
| Code: |
#!/bin/bash
# maximum size of files to move to your device
MAXSIZE=512000000
echo "reading files..."
# how to look for data. You can also try different find's here... :)
data=$(find -name \*.mp3 )
# remember to change the "copy file command" below, so the files are really
# copied somewhere usefull
#********************************************************************************
# split the file names
OIFS=$IFS; IFS=$'\n'
script_contents=( $data )
IFS=$OIFS
# shuffle the file names
for element in $(seq 0 $((${#script_contents[*]}-1)))
do
RAND=$((RANDOM%${#script_contents[*]}))
DATA=${script_contents[$element]}
script_contents[$element]=${script_contents[$RAND]}
script_contents[$RAND]=$DATA
done
# loop, count
TOTAL=0
COUNT=0
for element in $(seq 0 $((${#script_contents[@]}-1)))
do
FILENAME=${script_contents[$element]}
FILESIZE=$(stat -c %s "$FILENAME")
echo "filename: " $FILENAME
echo "filesize: " $FILESIZE
TOTAL=$((TOTAL + FILESIZE))
if [ $((TOTAL)) -lt $((MAXSIZE)) ]; then
# copy file command -
# insert your copy command here
echo "$FILENAME"
else
break
fi
COUNT=$((COUNT + 1))
done
#some more information
echo "added $COUNT files :)"
echo "added" $((TOTAL-FILESIZE)) "bytes"
|
|
|
| Back to top |
|
 |
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
| Posted: Tue Feb 15, 2005 2:22 am Post subject: |
|
|
little update: as gnupod_addsong.pl has a little bit of overhead that makes things take even longer, I added some code that calls gnupod_addsong for a whole bunch of files at ones.
| Code: |
#!/bin/bash
# maximum size of files to move to your device
MAXSIZE=500000000
echo "reading files..."
# how to look for data. You can also try different find's here... :)
data=$(find -name \*.mp3 )
# remember to change the "copy file command" below, so the files are really
# copied somewhere usefull
#********************************************************************************
# split the file names
OIFS=$IFS; IFS=$'\n'
script_contents=( $data )
IFS=$OIFS
# shuffle the file names
for element in $(seq 0 $((${#script_contents[*]}-1)))
do
RAND=$((RANDOM%${#script_contents[*]}))
DATA=${script_contents[$element]}
script_contents[$element]=${script_contents[$RAND]}
script_contents[$RAND]=$DATA
done
# loop, count
TOTAL=0
COUNT=0
for element in $(seq 0 $((${#script_contents[@]}-1)))
do
FILENAME=${script_contents[$element]}
FILESIZE=$(stat -c %s "$FILENAME")
echo "filename: " $FILENAME
echo "filesize: " $FILESIZE
TOTAL=$((TOTAL + FILESIZE))
if [ $((TOTAL)) -lt $((MAXSIZE)) ]; then
FILELIST=$(echo -e "$FILELIST\n$FILENAME")
else
break
fi
if [ $((element%20)) == 19 ]; then
#echo "$FILELIST"
# copy file command -
# insert your copy command here
#gnupod_addsong.pl $FILELIST
OIFS=$IFS; IFS=$'\n'
gnupod_addsong.pl $FILELIST
IFS=$OIFS
FILELIST=
fi
COUNT=$((COUNT + 1))
done
OIFS=$IFS; IFS=$'\n'
gnupod_addsong.pl $FILELIST
IFS=$OIFS
#some more information
echo "added $COUNT files :)"
echo "added" $((TOTAL-FILESIZE)) "bytes"
|
|
|
| Back to top |
|
|
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
| Posted: Tue Feb 15, 2005 4:57 pm Post subject: first version in python :) |
|
|
I switched to python because I want to be able to do some nifty mp3info tricks, and that will be easier in a proper language.
Here you go:
| Code: |
#! /usr/bin/env python
#pathname
pathname= "/mnt/mp3"
#ipod mount directory
# you have to edit the function addfilestodevice to use this :)
ipod_mount= ""
#ipod_mount= '/mnt/ipod'
# maximum size in byte
maxsize= 60*1024*1024
import os
import os.path
import re
import random
def addfilestodevice(filenames):
# replace this with a proper system call for your player
# i.e. "copy file to output dir"
print "moving",len(filenames),"titles to the ipod, be patient"
args=[]
args.append('gnupod_addsong.pl')
# add this if you did not set IPOD_MOUNTPOINT in the environment
if ipod_mount != "":
args.append('-m')
args.append(ipod_mount)
args.extend(filenames)
os.popen2(args)
os.wait()
def myvisit(list, dirname, names ):
for i, v in enumerate(names):
mymatch=re.match('.*\.mp3',v)
if mymatch :
data.append(dirname+"/"+v)
# list of files
data= []
# list of selected files
outlist= []
# number of added files
count= 0
# size of already added files
size= 0
print "reading file list"
# OK, get the list of files
os.path.walk(pathname,myvisit,data)
print "shuffle file list"
# now, shuffle them
random.seed()
random.shuffle(data)
print "select files"
for i, v in enumerate(data):
filedata=os.stat(v)
if (size+filedata.st_size < maxsize ):
outlist.append(v)
size+=filedata.st_size
out=[]
for i,v in enumerate(outlist):
out.append(v)
if (i%20==19):
addfilestodevice(out)
out=[]
if (len(out)):
addfilestodevice(out)
print "selected",len(outlist),"files"
print "size: ",size
|
|
|
| Back to top |
|
|
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
| Posted: Wed Feb 16, 2005 1:06 am Post subject: |
|
|
it's me again. I won't put the whole script in here again, because it's kind of senseless.
So, here's the link to the current script versions:
http://www.dark-reality.de/shuffler/
version 0.0.1 comes with initial mp3 tag support. It's now possible to filter the files by genres (i.e. select only "Metal" and "Ethno"...
You need id3-py but it's in portage |
|
| Back to top |
|
|
Wi1d
Apprentice
Joined: 15 Mar 2004
Posts: 282
Location: USA, Iowa
|
| Posted: Wed Feb 16, 2005 11:00 pm Post subject: |
|
|
| Thanks for sharing your work. Nice script(s). |
|
| Back to top |
|
|
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
| Posted: Wed Feb 16, 2005 11:12 pm Post subject: |
|
|
would have been pretty stupid to code for a few hours and only use it myself 
patches are welcome  |
|
| Back to top |
|
|
Dark Ninja
Tux's lil' helper
Joined: 31 Jan 2005
Posts: 127
|
| Posted: Sun Feb 20, 2005 10:42 pm Post subject: |
|
|
You said you got it to work with 0.87-RC1? But, if I go here...
http://blinkenlights.ch/gnupod-dist/stable/
...I don't see it. You didn't mean 0.97, did you?
Thanks for the help, otherwise. |
|
| Back to top |
|
|
LGW
n00b
Joined: 02 Oct 2002
Posts: 60
|
|
| Back to top |
|
|
einar
n00b
Joined: 25 Feb 2005
Posts: 2
|
| Posted: Fri Feb 25, 2005 9:50 pm Post subject: |
|
|
Can you elaborate on how you got the 0.98-RC1 to work?
So far I've managed to run the "make install", after having to do a few minor hacks to the gnupod_install.pl file. But now, when I try to run:
"gnupod_INIT.pl -m /mnt/ipod"
I get an error saying "Can't locate Unicode/String.pm in @INC ..." where it lists up a path of loads of folders. I did find the file (String.pm) in a folder which is not included in the path. What am I missing?
P.S. I'm not very familiar with perl or it's environment. |
|
| Back to top |
|
|
einar
n00b
Joined: 25 Feb 2005
Posts: 2
|
| Posted: Fri Feb 25, 2005 11:57 pm Post subject: |
|
|
Oh nevermind. I got it to work after emerging a few perl libraries.
Silly me |
|
| Back to top |
|
|
lacipac
n00b
Joined: 30 Jan 2005
Posts: 5
Location: Budapest/Hungary/Europe
|
| Posted: Sat Jul 09, 2005 8:30 pm Post subject: |
|
|
Hi,
now i can't reach the server for newer versions, so i downloaded the first one written in python (inserted here).
I'd like to ask why do you use so many enamerate()'s, when it makes no sense. For example:
| Code: | for i, v in enumerate(data):
filedata=os.stat(v)
if (size+filedata.st_size < maxsize ):
outlist.append(v)
size+=filedata.st_size
|
It could be implied with:
| Code: | for v in data:
filedata=os.stat(v)
if (size+filedata.st_size < maxsize ):
outlist.append(v)
size+=filedata.st_size
|
, because as far as I see You used i only once in the for cycles.
And one more thing I'd like to note is I think it's better to use mymatch=re.match('.*\.mp3$',v) instead of mymatch=re.match('.*\.mp3',v), because the last one includes foo.mp3.txt also.
on the other hand thanks for it, if you didn't written it I should write one like this, so you saved time for me
thanks again,
laca |
|
| Back to top |
|
|
|
Documentation, Tips & Tricks
