Puppy Linux Discussion Forum

[Limbomusic]

I hope its okay posting this in users/regulars puppy things. As it does fit kinda if one reads to the end.

This is a weird thing- just looking for any helpful feedback:

On my webserver (running puppy/hiawatha) I have a javascript mp3 player which plays a list of songs from a html page - the next song starts automatically when the last one finishes. example: (dont have to check it out) http://helledussen.com/groove/chill.html

But HERE is the problem: Sometimes that does NOT happen. A song will reach its end - and then it just stops. The next one does NOT start. (wtf?)

I researched like hell and wondered if there could be something in the html or js script but there ISNT.

I found the problem to be the .mp3 file itself (!)

To fix this problem I have done this: - and it ALWAYS works:

I copy the original mp3 file to somewhere else and I just edit it a little bit (like using audacity to cut away quiet time at end of song OR amplify everything a bit) - and copy it back - and suddenly the next song IS auto-played...

???

Could the original mp3 file be... damaged in any way?
Could it be the linux file-system (running ext4) be acting up?
Could the harddrive be faulty?

Any feedbacks would be greatly appreciated.

[musher0]

Hello limbomusic.

From my experience, mp3 files appear to be very "sturdy".

It may be worth running fsck.ext4 on your partition(s) or drive(s), if only to put
out of the way the possibility that your partition inodes may be mixed up.

After you have run the fsck.ext4 utility, all the files will be "in a clear sequence" (my
understanding) on the partition. This type of confusion on a partition happens because
a hard-drive partition is "magnetic", and these "magnetics" (again, my understanding)
vary with time, as the disk rotates on itself. This has to do with physics, not
programming: anything that rotates on itself rapidly creates a magnetic field.

Maybe your script is good, and does command a loop to the first song, but then the
filesystem on the partition is saying: "wait a minute, I can't go back to that mp3,
because I don't know where it begins anymore."

On a Linux filesystem, it is nothing to worry about too much, but you have to do a fsck
every once and a while, because, as I tried to explain above, fsck "resets the magnetic
bytes of the partition in a clear sequence" (again, my understanding). This mix-up of
inodes is a definite possibility, in particular if you use that partition a lot when creating
or editing your songs.

Just a few thoughts.

How-to:
To run fsck on a partition:
1) that partition has to be unmounted

2) you have to run it from another partition

3) the parameters that I use are the following:
fsck.ext4 -p -f -v /dev/partition
(replace "partition" with sda1 or sdb2, etc., as needed)

Finally, if interested, I have written a script called "automverif" that does this checking on
all ext? and vfat partitions (except the one the script is started from) automatically, here:
http://murga-linux.com/puppy/viewtopic.php?p=742647&sort=lastpost&search_id=1383590433#742647

To finish the process, after the initial checking is finished, you change to another
partition and re-run the script. This run is faster because there is only one partition to
check. Then you know that all your partitions are "healthy" again.

(Note -- my script does not check ntfs partitions. Please use the appropriate
WhineDose utilities to check those.)

IHTH. BFN.

[Limbomusic]

I will certainly try all your suggestions. Much appreciated

[don570]

I would be suspicious of the version of java that Barryk uses.

I know that he heavily redacts the version of python in Puppy linux,
so it wouldn't surprise me if he leaves out some java packages that are needed for web pages playing an app.
_____________________________________________________

[MochiMoppel]

[Limbomusic]

Mochi: I managed to recreate the problem:

http://helledussen.com/test/

on the song Enya - Diamonds on the water - the song will end without playing the next one. ( u dont have to listen to the whole song, u can just click near the end of the play song field)

The others are okay - ??? I,ll bet if I edit that particular mp3 in any way it will be okay.
w t f?
Thank you so much for thaughts. And new ones.

[Limbomusic]

Now I see that the same thing happens to the first 2 songs. NOT the third.

?

The fourth song starts no problem. (????)

[MochiMoppel]

No problem here with any of the songs. Try a different browser.

[Limbomusic]

U kidding??

[MochiMoppel]

Nei.

[Limbomusic]

I just tried edge. Every song played auto.

ok.

huh. Problem with chrome then? so weird.

At least I know more now than I did. Much more. Thanx man. And the others who replied.

[fredx181]

Hey Limbo,

I'm on Firefox 58.02 and all songs play fine following each other from here:
http://helledussen.com/test/

Fred

[Limbomusic]

Thanx Fred.
So weird. But at least now I know that its a browser-problem.

I would NEVER have guessed. SO evereyone s been a help. Thanx !

[greengeek]

[sheldonisaac]