Re: [slim] Artwork resizing - could it be managed better?

2008-12-23 Thread Fishbones

 
 [08-12-23 00:15:52.8045] Slim::Web::Graphics::processCoverArtRequest
 (618)   caching result key: plugins/cache/icons/radioio_25x25_f.png,
 orig=
 [08-12-23 00:15:53.1488] Slim::Web::Graphics::processCoverArtRequest
 (114) this is a transparent png request
 [08-12-23 00:15:53.1648] Slim::Web::Graphics::processCoverArtRequest
 (197)  cached image not usable because 'orig' undef
 [08-12-23 00:15:53.1744] Slim::Web::Graphics::processCoverArtRequest
 (222) Asking for trackid: notCoverArt - radioproviders at size 25x25
 [08-12-23 00:15:53.1813] Slim::Web::Graphics::processCoverArtRequest
 (316)   got cover art image image/png of 26165 bytes
 [08-12-23 00:15:53.5125] Slim::Web::Graphics::processCoverArtRequest
 (433)   resizing from 336x336 to 25 x 25 using fitstretch
 [08-12-23 00:15:53.5201] Slim::Web::Graphics::processCoverArtRequest
 (499) Set alpha for transparent png
 [08-12-23 00:15:53.5274] Slim::Web::Graphics::processCoverArtRequest
 (521) Resampling file for better quality
 [08-12-23 00:16:21.3728] Slim::Web::Graphics::processCoverArtRequest
 (567)   outputting cover art image image/png of 1163 bytes
 [08-12-23 00:16:21.4716] Slim::Web::Graphics::processCoverArtRequest
 (618)   caching result key:
 plugins/cache/icons/radioproviders_25x25_f.png, orig=
 [08-12-23 00:16:22.5571] Slim::Web::Graphics::processCoverArtRequest
 (114) this is a transparent png request
 [08-12-23 00:16:22.5830] Slim::Web::Graphics::processCoverArtRequest
 (191)   returning cached artwork image, image/png (729 byte)
 

Now with version 7.3.1, every time the webUI is loaded, most of the
25x25 icons are re-generated instead of being retrieved from pre-cached
artwork. This causes the webUI to be very slow on each startup.

From the debug above you can see that this is due to:
cached image not usable because 'orig' undef


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-27 Thread The Moog

Hi guys,

This might be a stupid question, and I apologise if it is, but could we
not have the option of resizing/resampling album artwork offline on a
proper PC? I have a ReadyNAS and a Controller, and it would be really
nice to just let your (hopefully much more powerfull) PC perform all of
the hard work, and dump the results into the ReadyNAS's cache file.


The Moog


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-27 Thread Fishbones

Looking into the  artwork cache directories I see that a scan generates
and caches */*/cover_100x100_p images. When the webUI requests covers
for the Albums menu squeezecenter generates and caches ANOTHER file
*/*/cover_100x100_o. 

So we have */*/cover_100x100_p AND */*/cover_100x100_o in cache. Why
doesn't the webUI use */*/cover_100x100_p that was generated by the
scan?


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-27 Thread Michael Herger
 Looking into the  artwork cache directories I see that a scan generates
 and caches */*/cover_100x100_p images. When the webUI requests covers
 for the Albums menu squeezecenter generates and caches ANOTHER file
 */*/cover_100x100_o.

Good catch! We originally used the _p covers in the web UI, but later switched 
to using _o. Alas, we forgot to adapt the pre-caching... This should be fixed 
in 7.3 r23698.

Thanks a lot!

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-25 Thread Fishbones

Got it. (I was looking *.jpg files in cache :-|

I have been following bug9757 and it would be great if something like
that could be done via the webUI. For now I'm going to try and apply
the patch. erm ... after finding out to apply a patch to *.pm file that
is...

Cheers


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-24 Thread MrSinatra

i think a user, and esp a nas user, should be able to optionally run
scans with settings they choose.

imagine an artwork only scan.  imagine a music only scan.  

sure, this may mean your music and art are somewhat out of sync at
times, but the user should have the option.

(other options in a scanner would be what to look for, so you could
turn off looking for embedded artwork, or certain tags you don't need
or care about, and as i've mentioned elsewhere, the ability to turn off
automated logics like VA and GH)


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SP3 - 3.2ghz / 2gig ram - D-Link DIR-655

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-24 Thread Michael Herger
 AH! No go for ReadyNAS and artwork on demand resampling then. But
 what does it do for 13 hours then?

As I said it lacks support for floating point operations in the CPU. Thus 
resizing one artwork might take 20 secs. vs. 2 secs in resize mode.

 It must be resampling and caching
 the resampled images somewhere. What size are they and where are they
 being cached to?

They're the size as used on the Controller (50, 56) plus what you've defined as 
the thumb artwork size in the web UI (100 by default).

 I turned on debug for artwork and noticed that SlimPronto requests
 64x64 images to display a coverart collage. Squeezecenter then resizes
 from the original folder.fpg of 500x500 to 64x64. Now if these 64x64
 images were already cached then there would be no need for this on
 demand resize. Images would just be retrieved from cache. So we could
 have resampling enabled and the only downside would be the long scan
 time.

There's already an enhancement request for additional formats. You might want 
to add your voice.

http://bugs.slimdevices.com/show_bug.cgi?id=9757

 I also noticed that the web interface requests 100x100 and those also
 get resized and resampled on demand.

They should be pre-cached.

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-24 Thread Fishbones

Could someone please point out to me where the images are pre-cached on
the server.

Cheers.


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-24 Thread Michael Herger
 Could someone please point out to me where the images are pre-cached on
 the server.

In the cache folder you'll find in Settings/Status.

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread Fishbones

I'm running SqueezeCenter 7.2.1 on a ReadyNAS Duo and have noticed that
when a scan is done with Resample Artwork set in the performance
settings, viewing album art in the web interface and consequently also
on a Philips Pronto with the SlimPronto module, is very slow to non
functional.
When a scan is done with Resize Artwork, cover art loads in seconds.

A scan with Resample Artwork set takes +-13 hours.
A scan with Resize Artwork set takes +-1 hours.


So what is happening here? Does album art, either resampled or resized,
get cached on the server? If it's not cached, why does it take 13 hours
to resample artwork?

TIA.


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread Michael Herger
 When a scan is done with Resize Artwork, cover art loads in seconds.

There's one reason that option exists at all: ReadyNAS. We only introduced it 
because the ReadyNAS isn't able to resample the artwork in a reasonable amount 
of time.

 why does it take 13 hours to resample artwork?

AFAIK because the ReadyNAS doesn't have a floating point unit.

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread cwinson

Been a while since I looked at this. In truth, this issue turned into a
showstopper for me and I've ended up using itunes and the iphone/ipod
remnote app instead. As I'm using softsqueeze, this works fine for me.

From memory, the problem you are having is that the ReadyNas CPU is
particularly poor at running the resampling code

This is compounded by the fact that the initial scan only creates
caches for some of the artwork sizes used in the controller and the web
interface - the rest has to happen on the fly, which kill the user
experience.

Don't know whether any of my suggestions above were taken into account
in later releases, but to be honest, I don't really care at this stage.
The slim duo is packed up along with other redundant kit. I would peddle
it in ebay if it wasn't for the fact that it's got scratches all over
the back from where the controller was actually taken out of the
cradle.

Nice idea - bad implementation


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread Peter


cwinson wrote:
 Been a while since I looked at this. In truth, this issue turned into a
 showstopper for me and I've ended up using itunes and the iphone/ipod
 remnote app instead. As I'm using softsqueeze, this works fine for me.

 From memory, the problem you are having is that the ReadyNas CPU is
 particularly poor at running the resampling code

 This is compounded by the fact that the initial scan only creates
 caches for some of the artwork sizes used in the controller and the web
 interface - the rest has to happen on the fly, which kill the user
 experience.

 Don't know whether any of my suggestions above were taken into account
 in later releases, but to be honest, I don't really care at this stage.
 The slim duo is packed up along with other redundant kit. I would peddle
 it in ebay if it wasn't for the fact that it's got scratches all over
 the back from where the controller was actually taken out of the
 cradle.

 Nice idea - bad implementation
   

Using a NAS for a media server is a bad idea indeed.

X.

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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread cwinson

I'm not sure that's the case - most of the NAS boxes out there are
stripped down Linux boxes which should be perfectly capable of running
a media server. Of course it depends on what the media server is trying
to do.

The issue for me around this whole episode was that ReadyNAS was
purported to be capable of running the software. It wasn't immediately
apparent that this came with big caveats. The option to run with
resized artwork was not workable for me - the artwork looked awful.

I should note that I also ran for a period of time with the software
running on a full PC. I still found the performance and responsiveness
of the controller disappointing - I guess I have high expectations... 

Of course, that was when it was able to get a wireless signal..


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Re: [slim] Artwork resizing - could it be managed better?

2008-10-23 Thread Fishbones

mherger;352408 Wrote: 
  When a scan is done with Resize Artwork, cover art loads in
 seconds.
 
 There's one reason that option exists at all: ReadyNAS. We only
 introduced it because the ReadyNAS isn't able to resample the artwork
 in a reasonable amount of time.
 
  why does it take 13 hours to resample artwork?
 
 AFAIK because the ReadyNAS doesn't have a floating point unit.
 
 -- 
 
 Michael

AH! No go for ReadyNAS and artwork on demand resampling then. But
what does it do for 13 hours then? It must be resampling and caching
the resampled images somewhere. What size are they and where are they
being cached to?

I turned on debug for artwork and noticed that SlimPronto requests
64x64 images to display a coverart collage. Squeezecenter then resizes
from the original folder.fpg of 500x500 to 64x64. Now if these 64x64
images were already cached then there would be no need for this on
demand resize. Images would just be retrieved from cache. So we could
have resampling enabled and the only downside would be the long scan
time.

I also noticed that the web interface requests 100x100 and those also
get resized and resampled on demand.


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Re: [slim] Artwork resizing - could it be managed better?

2008-06-09 Thread cwinson

Thanks for the responses Michael.

To answer the question around what I mean by 'more could/should be done
during the initial scan', I would propose the following:

1) Provide a set of options which configures the resampling and caching
of the various artwork sizes during the initial scan. Knowing my RadyNAS
struggles with the resizing, I would pre-scan the 56x56, 154x154,
186x186 and 240x240 images which are used by the controller - plus
possbily the web ones as well so I can access the settings page within
a reasonable timescale. The initial scan would take a long time, but
this could be scheduled overnight

2) Resize and cache the standard icons (e.g. no album cover, favourites
etc.) during the initial scan. At the moment, I'm not sure if they're
even cached on first use.

3) Run the logic to determine artwork location for each track (embedded
tag vs. folder.jpg etc.) during the initial scan. This would also fix
the issue reported by EliteAV in the following thread where this
per-track check causes delays in browsing albums. 

http://forums.slimdevices.com/showthread.php?t=45121


Add to this the ability to share cached artwork across tracks so the
resizing doesnt have to occur multiple times (as per the bug you
mention) and I think the overall responsiveness of the controller would
be far better. For me, it would make the readynas solution workable
without having to use the degraded artwork option.

Chris


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Re: [slim] Artwork resizing - could it be managed better?

2008-06-08 Thread Michael Herger
 1) The initial scan doesn't do much to help the controller interface in
 terms of resizing and caching artwork. Only the 56x56 image is used by
 the controller

Nope. Now Playing and screensaver use the other sizes.

 2) There is no sharing of cached cover art for different songs in the
 same album.

This issue is being tracked in a bug report (don't remember its number)

 3) More could/should be done during the initial scan to help out those

Please define more?

 Overall, I think there a lots of things that can be done around the
 management of artwork which would make the interfaces run much better.

The problem here is dev cost vs. use case. ReadyNAS is by far the slowest 
device out there regarding this issue. ReadyNAS users are a small bunch. And 
most of them seem to be happy with the current compromise.

 It's particularly bad with ReadyNas, but would help across the board.

That's especially true for 2. which we're addressing.

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[slim] Artwork resizing - could it be managed better?

2008-06-07 Thread cwinson

Bit of a long one this I'm afraid

I've been doing some investigation into artwork resizing and caching in
7.01, prompted by the fact that it takes 30 secs to resample a 500x500
image on my RadyNAS NV+ to each required size, which means teh
interface runs like a dog

Note: I have tried reducing the size of my standard artwork files to
see if it helps - it does reduce the resample time (to 15 secs), but
it's still not manageable


Having turned on logging in the server, I've seen the following:

1) Artwork is cached on a per song basis, rather than a per-album
basis

2) The initial scan creates and caches some artwork sizes (see below)
but only for the first song in the album

3) There are 7 different representations of artwork that I've seen:

50x50 (pad) - Created and cached for each album during initial scan.
Used for web interface album thumbnails

100x100 (pad) - Created and cached for each album during initial scan.
Used for web interface 'now playing' thumbnails

56x56 (original) - Created and cached for each album during initial
scan. Used in controller interface for album thumbnail

96x96 (pad) - Not created during initial scan. Used for 'now playing'
thumbnail in web interface. Gets created and cached when a song is
first played via controller, causing delay in now playing artwork to
appear

154x154 (original) - Not created during initial scan. Used for smaller
'now playing' thumbnail in controller. Gets created and cached when a
song is first played via controller, causing delay in now playing
artwork to appear

186x186 (original) - Not created during initial scan. Used for larger
'now playing' thumbnail in controller. Gets created and cached when a
song is first played via controller, causing delay in now playing
artwork to appear

240x240 (original) - Not created during initial scan. Used for 'show
artwork' screen in controller. Gets created and cached on first
request, causing delay in artwork to appear

25x25 - Not created during initial scan. Used for small non-artwork
thumbnails in the web interface. Gets created and cached on first
request, causing delay in the web interface to work first time


3) Most of the standard icons which sit alongside the cover art (e.g.
'no cover art' logo, favourites logo, genre logo etc.) come in a
standard jpg size (336x336) and have to be resampled on first use in
the interfaces (web and/or controller). This causes delays in first use
of either interface - particularly when using readyNas server



Some observations:

1) The initial scan doesn't do much to help the controller interface in
terms of resizing and caching artwork. Only the 56x56 image is used by
the controller

2) There is no sharing of cached cover art for different songs in the
same album. I understand that some people may have embedded artwork
which can vary by song, but if folder.jpg is used, the cached versions
should be re-used where possible

3) More could/should be done during the initial scan to help out those
of us who predominantly use the controller interface as opposed to the
web interface. Perhaps this could be made configurable so that I could
get all resizing and caching requirements done up front as opposed to
on first use.

4) If nothing can be done around point 2 (different songs, same album),
getting the initial scan to create artwork for all of the songs would be
useful - at least as an option

5) The standard logos used in the interfaces should be pre-prepared and
cached to meet requirements rather than on first use.


Overall, I think there a lots of things that can be done around the
management of artwork which would make the interfaces run much better.
It's particularly bad with ReadyNas, but would help across the board.
It may take some more programming and/or config options, but I think
it's worthwhile.

If all I had was my readynas nv+ to run the server, I would have given
up on the duet and returned it. At the moment, I'm using another
machine to run the server and it's useable - but has other issues.
Ideally I would migrate back to readynas as it's the only always-on
machine in the house.


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