Hi,
This is because Liquidsoap gets the next song in advance (the prefetching
David mentionned), while the current song is playing:
1111: song 1 is downloaded
2222: song 1 is played
1111: song 2 is downloaded (while song 1 is playing)
3333: song 1 stops
2222: song 2 is played
1111: song 3 is dowloaded (while song 1 is playing)
3333: song 2 stops
2222: song 3 is played
etc.
++
Sam.
On Thu, Sep 8, 2011 at 5:51 AM, Alfie <[email protected]> wrote:
> Hi again,
> I know you told me to post in the thread but I don’t even know where it is?
>
> I tried the on_track method and I am even more lost... It does seem to be
> working as you described...
> Here is my script and look at the log. It seems to not be firing in the
> order you and your documentation describes. the order is suppose to be
> 1,2,3. But it is apparently not.
> Can you tell me why?
>
> def ab_next() =
> # Get the first line of my external process
> log("11111111111111111111111111111111111111-------------next")
> result =
> list.hd(get_process_lines("C:\PlayGen.exe -cmd=next"))
> # Create and return a request using this result
> request.create(result)
> end
>
> def ab_playing(m) =
> # Get the first line of my external process
> log("2222222222222222222222222222222222222--------------playing")
> system("C:\PlayGen.exe -cmd=playing")
> end
>
> def ab_played(t, m) =
> # Get the first line of my external process
> log("33333333333333333333333333333333333--------------played")
> system("C:\PlayGen.exe -cmd=played -cat=-1")
> end
>
> # Create the source
> s = request.dynamic(ab_next)
> s = mksafe(s)
> s = on_track(ab_playing,s)
> s = on_end(ab_played, s,delay=3.0)
>
> output.icecast(%mp3,host="localhost",fallible=true,port=8041,password="hackme",mount="live",s)
>
> ******************LOG BELOW**********************
>
> 2011/09/07 23:35:32 [lang:3]
> 11111111111111111111111111111111111111-------------next
> 2011/09/07 23:35:32 [decoder:3] Method "MP3/LIBMAD" accepted
> "c:\Out\int.mp3".
> 2011/09/07 23:35:35 [request.dynamic_4308:3] Finished with
> "c:\Out\7af6061e-e1c1-495d-983d-2c3a9b36e9bd.mp3".
> 2011/09/07 23:35:35 [request.dynamic_4308:3] Prepared "c:\Out\int.mp3" (RID
> 70).
> 2011/09/07 23:35:35 [lang:3]
> 2222222222222222222222222222222222222--------------playing
> 2011/09/07 23:35:35 [lang:3]
> 11111111111111111111111111111111111111-------------next
> 2011/09/07 23:35:35 [decoder:3] Method "MP3/LIBMAD" accepted
> "c:\Out\int.mp3".
> 2011/09/07 23:35:38 [clock.wallclock_main:2] We must catchup 2.50 seconds!
> 2011/09/07 23:35:40 [lang:3]
> 33333333333333333333333333333333333--------------played
> 2011/09/07 23:35:43 [request.dynamic_4308:3] Finished with
> "c:\Out\int.mp3".
> 2011/09/07 23:35:43 [request.dynamic_4308:3] Prepared "c:\Out\int.mp3" (RID
> 47).
> 2011/09/07 23:35:43 [lang:3]
> 2222222222222222222222222222222222222--------------playing
> 2011/09/07 23:35:43 [lang:3]
> 11111111111111111111111111111111111111-------------next
> 2011/09/07 23:35:44 [decoder:3] Method "MP3/LIBMAD" accepted
> "c:\Out\d54f0765-783c-4a2f-b96e-44cfe2e6af80.mp3".
> 2011/09/07 23:35:46 [clock.wallclock_main:2] We must catchup 2.64 seconds!
> 2011/09/07 23:35:48 [lang:3]
> 33333333333333333333333333333333333--------------played
> 2011/09/07 23:35:52 [request.dynamic_4308:3] Finished with
> "c:\Out\int.mp3".
> 2011/09/07 23:35:52 [request.dynamic_4308:3] Prepared
> "c:\Out\d54f0765-783c-4a2f-b96e-44cfe2e6af80.mp3" (RID 372).
> 2011/09/07 23:35:52 [lang:3]
> 2222222222222222222222222222222222222--------------playing
> 2011/09/07 23:35:54 [clock.wallclock_main:2] We must catchup 2.55 seconds!
>
> -----Original Message-----
> From: David Baelde
> Sent: Tuesday, September 06, 2011 4:45 AM
> To: Alfie
> Cc: [email protected]
> Subject: Re: [Savonet-users] LiquidSoap for Win32
>
> Hi,
>
> On Tue, Sep 6, 2011 at 9:31 AM, Alfie <[email protected]> wrote:
> > For problem 2, I think I should explain more. You see, I have a program
> > that
> > generates a playlist. when it is generated it also sets an image that is
> > for
> > the current playing item so that the website can use the image.
> > this requires that when liquidsoap calls the playlist program it should
> be
> > in sync.
>
> OK so you don't need "perfect sync", just "enough sync".
>
> > The problem is that liquid soap streams the data and grabs another "next"
> > too soon and it makes the images out of sync by a few seconds.
> > How can I tell liquid soap to wait for the entire stream to be sent
> before
> > it grabs another playlist item?
>
> You need to distinguish prefetching (when liquidsoap prepares a file)
> and playing (when it actually plays it, which is when you want to
> inform the website that the image should change). To do stuff when a
> file is played, you typically need to use on_track().
>
> If you need more help, please start a new thread with a clear topic
> and explaination: many people here have similar devices and could
> share their experience and code snippets.
>
> Cheers,
> --
> David
>
>
>
> ------------------------------------------------------------------------------
> Doing More with Less: The Next Generation Virtual Desktop
> What are the key obstacles that have prevented many mid-market businesses
> from deploying virtual desktops? How do next-generation virtual desktops
> provide companies an easier-to-deploy, easier-to-manage and more affordable
> virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
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Doing More with Less: The Next Generation Virtual Desktop
What are the key obstacles that have prevented many mid-market businesses
from deploying virtual desktops? How do next-generation virtual desktops
provide companies an easier-to-deploy, easier-to-manage and more affordable
virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
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