accurate (progress bar and time)

Discussion:

dean blackketter

2002-01-29 03:09:18 UTC

How do you get it to the point where you can do 'cvs update'? I've got
cvs's utils installed, but have never used it before, either.

Check out the instructions on the sourceforge site for the SliMP3 project:

<http://sourceforge.net/cvs/?group_id=34726>

Once you've got cvs installed, this is what you need.

-dean

/Chris

Hi Nicholas,

Dean - I have to admit I have absolutely no idea how to use CVS. I will do
some reading-up, but currently I can't create a diff file. Sorry

about that.

I'll figure it out soon :)

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dean blackketter

2003-02-22 13:06:33 UTC

Permalink

<!doctype html public "-//W3C//DTD W3 HTML//EN">
<head><style type="text/css"></style><title>Re: [slimp3-dev] Re: accurate (progress bar and
time)</title></head><body>
<blockquote type="cite" cite>How do you get it to the point where you
can do 'cvs update'?  I've got<br>
cvs's utils installed, but have never used it before,
either.</blockquote>
<div><br></div>
<div>Check out the instructions on the sourceforge site for the SliMP3
project:</div> <div><br></div> <div><http://sourceforge.net/cvs/?group_id=34726></div>
<div><br></div>
<div>Once you've got cvs installed, this is what you need.</div>
<div><br></div>
<div>-dean</div>
<div><br></div>
<div><br></div>
<div><br></div>
<blockquote type="cite" cite>/Chris<br>
<br>
On Sat, 26 Jan 2002, dean blackketter wrote:<br>
<br>
> Hi Nicholas,<br>
><br>
> >Dean - I have to admit I have absolutely no idea how to use
CVS. I will do<br>
> >some reading-up, but currently I can't create a diff file.
Sorry about that.<br>
> >I'll figure it out soon :)<br>
><br>
> Ok.  It's really not that hard.  Once you've gotten to
where you can do a<br>
><br>
> cvs update<br>
><br>
> you should be able to do a<br>
><br>
> cvs diff -upB<br>
><br>
> Take the output of that command and send it as an attached text
file<br>
> to the list so we can check out your good work.<br>
><br>
><br>
> -dean<br>
><br>
><br>
> To unsubscribe from this group, send an email to:<br>
> slimp3-dev-unsubscribe-***@public.gmane.org<br>
><br>
><br>
><br>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/<br>
><br>
><br>
<br>
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<blockquote type="cite" cite><br></blockquote>
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Jordan Share

2002-01-28 01:28:31 UTC

Permalink

How do you get it to the point where you can do 'cvs update'? I've got
cvs's utils installed, but have never used it before, either.

cvs -d:pserver:anonymous-d6Wnq0YjlhfDbRF6Jby/***@public.gmane.org:/cvsroot/slimp3 login
(hit enter at the password prompt)

cvs -z3 -d:pserver:anonymous-d6Wnq0YjlhfDbRF6Jby/***@public.gmane.org:/cvsroot/slimp3 co
slimp3

After you have checked out the source, you can just do "cvs update" within
the slimp3 directory (i.e., you don't have to enter the rest of the stuff).

Jordan

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Chris Hemmerly

2002-01-28 01:13:18 UTC

Permalink

How do you get it to the point where you can do 'cvs update'? I've got
cvs's utils installed, but have never used it before, either.
/Chris

Hi Nicholas,

Dean - I have to admit I have absolutely no idea how to use CVS. I will do
some reading-up, but currently I can't create a diff file. Sorry about that.
I'll figure it out soon :)

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dean blackketter

2002-01-27 06:44:03 UTC

Permalink

Hi Nicholas,

Dean - I have to admit I have absolutely no idea how to use CVS. I will do
some reading-up, but currently I can't create a diff file. Sorry about that.
I'll figure it out soon :)

Ok. It's really not that hard. Once you've gotten to where you can do a

cvs update

you should be able to do a

cvs diff -upB

Take the output of that command and send it as an attached text file
to the list so we can check out your good work.

-dean

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dean blackketter

2003-02-22 13:07:06 UTC

Permalink

Nicholas Clark

2002-01-27 02:38:37 UTC

Permalink

Dean - I have to admit I have absolutely no idea how to use CVS. I will do
some reading-up, but currently I can't create a diff file. Sorry about that.
I'll figure it out soon :)

Sam - I really like the idea of being able to fast forward and I can see how
that really makes it hard to display the time correctly.

The reason I was using the time and length of the song in seconds rather
than the number of packets sent was because I thought that would be more
accurate, but I don't know if that is true nor the easiest way to determine
the progress of the song.

I think both displaying accurate time and being able to fast forward are
important so this may warrant some debate on how to do this. I don't know if
any firmware support would be necessary, etc.

I'll keep playing with the code and see what I can come up with...if I can
make the time even more accurate and reliable, etc.

----- Original Message -----
From: "sam_saffron" <sam_saffron-/***@public.gmane.org>
To: <slimp3-dev-***@public.gmane.org>
Sent: Saturday, January 26, 2002 8:57 PM
Subject: [slimp3-dev] Re: accurate (progress bar and time)

Dean/Nicholas
I got this working on my SlimVB, and got the fast forward and rewind
working as well.
Here is how I did the accurate time
I added a client var that counts the number of packets that were sent
in the stream. The actual position in the song is the file pos minus
the number of packets sent in the stream times chunksize or
BUFFERSIZE - whatever is smaller. (this is slightly innacurate as
network latency and packet loss should be taken into account but
seems to work fine for me, to take these two into account without
changing the slim firmware would be complex)
Private Function estimatedBuffer() As Long
estimatedBuffer = lPacketsSent * CHUNKSIZE
If SLIMP3_BUFFER_SIZE < estimatedBuffer Then estimatedBuffer =
SLIMP3_BUFFER_SIZE
End Function
Storing packets sent are very important if you want to get fast
forward working as the buffer is usually mostly empty while the fast
forward is going. So its a bit difficult to get the time on display
to sync with the time on the song.
The last change which was most complicated for fast forward was
detecting onbuttonup events as the fast forward button has two
functions, if pressed shortly it will skip a song and if pressed a
long time it will fast forward the song. My client object has a proc
called ISchedulable_RefreshDevice that is called every 50MS so this
allows me to detect inactivity on the remote...
Cheers
Sam

Nicholas,
Can you post a diff? This stuff is very interesting...
Thanks,
dean

I have managed to make the progress bar and time quite accurate

(at least on

my machine over my network.) Unfortunately I had to make quite a

few changes

here and there, so this is really for those who are interested.
The progress bar goes all the way from start to finish and the

time goes

from 00:00 to the total length of the song without jumping to

00:00 before

the song is over.
http://clarkni5.user.msu.edu
Go to my web page and look at Section "V. accurate + dean

modification,

includes my short descriptions time display" under "Progress Bar".

There are

four files you need to download and two of them are named

playlist.pm, so

make sure they make it to the proper directory. (I think I put

everything

online, but please let me know if it does not work.)
I can explain more in depth what I did if people are

interested...in short I

added two variables to the client structure containing the length

of the

song in seconds and a boolean 'is this a new song' variable. --

because

songs start streaming before the player has finished playing the

song I had to add these variables, I could not use the cache in
SliMP3::Misc -- anyway, I won't bore you with the details.
In server.pl on line 537, I used this calculation (122 * 1024),

not (128 *

1024) This was to make the time say 00:00 when the next song

started

playing. You may have to adjust this for your network

environment...I don't

know.
Play a song that scrolls the text at the bottom and watch the

time, I

thought it was funny.
When you reach the end of the playlist...the progress bar goes

blank just

before the end of the last song.
These files also include all the chages I emailed the list about

last night,

for those interested.
Why are my emails always so long...sorry about that. Please give

me your

feedback.
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sam_saffron

2002-01-27 01:57:01 UTC

Permalink

Dean/Nicholas

I got this working on my SlimVB, and got the fast forward and rewind
working as well.

Here is how I did the accurate time

I added a client var that counts the number of packets that were sent
in the stream. The actual position in the song is the file pos minus
the number of packets sent in the stream times chunksize or
BUFFERSIZE - whatever is smaller. (this is slightly innacurate as
network latency and packet loss should be taken into account but
seems to work fine for me, to take these two into account without
changing the slim firmware would be complex)

Private Function estimatedBuffer() As Long
estimatedBuffer = lPacketsSent * CHUNKSIZE
If SLIMP3_BUFFER_SIZE < estimatedBuffer Then estimatedBuffer =
SLIMP3_BUFFER_SIZE
End Function

Storing packets sent are very important if you want to get fast
forward working as the buffer is usually mostly empty while the fast
forward is going. So its a bit difficult to get the time on display
to sync with the time on the song.

The last change which was most complicated for fast forward was
detecting onbuttonup events as the fast forward button has two
functions, if pressed shortly it will skip a song and if pressed a
long time it will fast forward the song. My client object has a proc
called ISchedulable_RefreshDevice that is called every 50MS so this
allows me to detect inactivity on the remote...

Cheers

Sam

Nicholas,
Can you post a diff? This stuff is very interesting...
Thanks,
dean

I have managed to make the progress bar and time quite accurate

(at least on

my machine over my network.) Unfortunately I had to make quite a

few changes

here and there, so this is really for those who are interested.
The progress bar goes all the way from start to finish and the

time goes

from 00:00 to the total length of the song without jumping to

00:00 before

the song is over.
http://clarkni5.user.msu.edu
Go to my web page and look at Section "V. accurate + dean

modification,

includes my short descriptions time display" under "Progress Bar".

There are

four files you need to download and two of them are named

playlist.pm, so

make sure they make it to the proper directory. (I think I put

everything

online, but please let me know if it does not work.)
I can explain more in depth what I did if people are

interested...in short I

added two variables to the client structure containing the length

of the

song in seconds and a boolean 'is this a new song' variable. --

because

songs start streaming before the player has finished playing the

song I had to add these variables, I could not use the cache in
SliMP3::Misc -- anyway, I won't bore you with the details.
In server.pl on line 537, I used this calculation (122 * 1024),

not (128 *

1024) This was to make the time say 00:00 when the next song

started

playing. You may have to adjust this for your network

environment...I don't

know.
Play a song that scrolls the text at the bottom and watch the

time, I

thought it was funny.
When you reach the end of the playlist...the progress bar goes

blank just

before the end of the last song.
These files also include all the chages I emailed the list about

last night,

for those interested.
Why are my emails always so long...sorry about that. Please give

me your

feedback.
Your use of Yahoo! Groups is subject to

http://docs.yahoo.com/info/terms/

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dean blackketter

2002-01-27 01:04:34 UTC

Permalink

Nicholas,

Can you post a diff? This stuff is very interesting...

Thanks,

dean

I have managed to make the progress bar and time quite accurate (at least on
my machine over my network.) Unfortunately I had to make quite a few changes
here and there, so this is really for those who are interested.
The progress bar goes all the way from start to finish and the time goes
from 00:00 to the total length of the song without jumping to 00:00 before
the song is over.
http://clarkni5.user.msu.edu
Go to my web page and look at Section "V. accurate + dean modification,
includes my short descriptions time display" under "Progress Bar". There are
four files you need to download and two of them are named playlist.pm, so
make sure they make it to the proper directory. (I think I put everything
online, but please let me know if it does not work.)
I can explain more in depth what I did if people are interested...in short I
added two variables to the client structure containing the length of the
song in seconds and a boolean 'is this a new song' variable. -- because
songs start streaming before the player has finished playing the previous
song I had to add these variables, I could not use the cache in
SliMP3::Misc -- anyway, I won't bore you with the details.
In server.pl on line 537, I used this calculation (122 * 1024), not (128 *
1024) This was to make the time say 00:00 when the next song started
playing. You may have to adjust this for your network environment...I don't
know.
Play a song that scrolls the text at the bottom and watch the time, I
thought it was funny.
When you reach the end of the playlist...the progress bar goes blank just
before the end of the last song.
These files also include all the chages I emailed the list about last night,
for those interested.
Why are my emails always so long...sorry about that. Please give me your
feedback.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Nicholas Clark

2002-01-27 00:38:42 UTC

Permalink

I have managed to make the progress bar and time quite accurate (at least on
my machine over my network.) Unfortunately I had to make quite a few changes
here and there, so this is really for those who are interested.

What this fixes:
The progress bar goes all the way from start to finish and the time goes
from 00:00 to the total length of the song without jumping to 00:00 before
the song is over.

How to get the changes:
http://clarkni5.user.msu.edu
Go to my web page and look at Section "V. accurate + dean modification,
includes my short descriptions time display" under "Progress Bar". There are
four files you need to download and two of them are named playlist.pm, so
make sure they make it to the proper directory. (I think I put everything
online, but please let me know if it does not work.)

Explanation:
I can explain more in depth what I did if people are interested...in short I
added two variables to the client structure containing the length of the
song in seconds and a boolean 'is this a new song' variable. -- because
songs start streaming before the player has finished playing the previous
song I had to add these variables, I could not use the cache in
SliMP3::Misc -- anyway, I won't bore you with the details.

Tweak:
In server.pl on line 537, I used this calculation (122 * 1024), not (128 *
1024) This was to make the time say 00:00 when the next song started
playing. You may have to adjust this for your network environment...I don't
know.

Issues:
Play a song that scrolls the text at the bottom and watch the time, I
thought it was funny.
When you reach the end of the playlist...the progress bar goes blank just
before the end of the last song.

Additional:
These files also include all the chages I emailed the list about last night,
for those interested.

Why are my emails always so long...sorry about that. Please give me your
feedback.

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dean blackketter

2003-02-22 13:07:12 UTC

Permalink

<!doctype html public "-//W3C//DTD W3 HTML//EN">
<head><style type="text/css"></style><title>Re: [slimp3-dev] accurate (progress bar and
time)</title></head><body>
<div>Nicholas,</div>
<div><br></div>
<div>Can you post a diff?  This stuff is very
interesting...</div>
<div><br></div>
<div>Thanks,</div>
<div><br></div>
<div>dean</div>
<div><br></div>
<blockquote type="cite" cite>I have managed to make the progress bar
and time quite accurate (at least on<br>
my machine over my network.) Unfortunately I had to make quite a few
changes<br>
here and there, so this is really for those who are interested.<br>
<br>
What this fixes:<br>
The progress bar goes all the way from start to finish and the time
goes<br>
from 00:00 to the total length of the song without jumping to 00:00
before<br>
the song is over.<br>
<br>
How to get the changes:<br>
http://clarkni5.user.msu.edu<br>
Go to my web page and look at Section "V. accurate + dean
modification,<br>
includes my short descriptions time display" under "Progress
Bar". There are<br>
four files you need to download and two of them are named playlist.pm,
so<br>
make sure they make it to the proper directory. (I think I put
everything<br>
online, but please let me know if it does not work.)</blockquote>
<blockquote type="cite" cite><br>
Explanation:<br>
I can explain more in depth what I did if people are interested...in
short I<br>
added two variables to the client structure containing the length of
the<br>
song in seconds and a boolean 'is this a new song' variable. --
because<br>
songs start streaming before the player has finished playing the
previous</blockquote>
<blockquote type="cite" cite>song I had to add these variables, I
could not use the cache in<br>
SliMP3::Misc -- anyway, I won't bore you with the
details.</blockquote>
<blockquote type="cite" cite><br>
Tweak:<br>
In server.pl on line 537, I used this calculation (122 * 1024), not
(128 *<br>
1024) This was to make the time say 00:00 when the next song
started<br>
playing. You may have to adjust this for your network environment...I
don't<br>
know.</blockquote>
<blockquote type="cite" cite><br>
Issues:<br>
Play a song that scrolls the text at the bottom and watch the time,
I<br>
thought it was funny.<br>
When you reach the end of the playlist...the progress bar goes blank
just<br>
before the end of the last song.<br>
<br>
Additional:<br>
These files also include all the chages I emailed the list about last
night,<br>
for those interested.<br>
<br>
Why are my emails always so long...sorry about that. Please give me
your<br>
feedback.</blockquote>
<blockquote type="cite" cite><br>
<br>
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