July 2023 - Pharo-users - lists.pharo.org

Re: Video in Pharo

by ducasse

https://github.com/OpenSmock/PharoGStreamerï¿¼ OpenSmock/PharoGStreamer: A GStreamer binding for Pharo github.com > On 10 Jul 2023, at 13:50, Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > > Hi, > > Heh, there were several problems around :) > > 1) Indeed, Ubuntu naming conventions were a problem for the gtk > bindings. I updated them and now it should not be a problem (but you need to pull them again). > 2) I assume you are using Pharo Launcher (or zeroconf directly). And this is a problem... PharoLauncher is a great idea, and for Windows is a mustbut in linux world it just does not matches the philosophy: There are many distrubutions and changes and is impossible to correctly distribute a VM with all dependencies without using the packaging they expect (we need to start thinking on distribute the VM as a flatpak, but that will take time to be implemented). > You need to use the VM we provide with Open Build Service: https://software.opensuse.org//download.html?project=devel:languages:pharo:… > 3) finally, this is not a real problem immediately, but a recommendation: Pharo has different ways of being ejecuted. The default one will execute the VM and everything needed in the main thread. This is usually suitable for Pharo needs, but it is a problem when the UI loop is required to run separately (not just for Gtk but any backend that you need to run on idle mode). > Fortunaltely, Pharo implements also a way to be executed in a worker thread, making space so the main thread can be used for other purposes. We highly recommend that you execute Pharo using a worker thread (future versions of Spec-Gtk will require this usage, and is definitively better. > How to execute in worker thread: > pharo --worker MyImage.image --interactive > > I updated the README on pharo-spec/Spec-Gtk to precise this points. > > Cheers! > Esteban > On Jul 10 2023, at 7:17 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > Another step forward. > > I created a new ubuntu 22 install, installed pharo 11 and installed spec-gtk. The first issue was the libraries are named: libgobject-2.0.so.0 and libpango-1.0.so.0 with the â.0â suffix. I created links to those with the names spec-gtk is expecting. > > Then, the little test window opened but looked like this: > > > Is there something else Iâm missing? > > Thanks for your advice. > > Cheers, > > Phil > > > On 9 Jul 2023, at 6:02 pm, Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > > Hi, > > Spec-Gtk should work without problems on P11, except on macs, where there is a known problem. > what is the process you are taking to install it? where are you trying it? > > I don't know the status of the VLC bindings. > > Esteban > > On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > The stark silence answers my question :) > > Soâ¦ > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. > > Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) > > [1] https://github.com/badetitou/Pharo-LibVLC > [2] https://github.com/pharo-spec/Spec-Gtk > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > Thanks in advance. > > Cheers, > > J

July 11, 2023

This week (27/2023) on the Pharo Issue Tracker

by Marcus Denker

# Features - #14173 Introduce a nice command to spot the closest method overriden â¦ #14183 https://github.com/pharo-project/pharo/pull/14183 - Update Fuel from upstream #14132 https://github.com/pharo-project/pharo/pull/14132 # Fixes - 14034 debugger does not evaluate in the context of the receiver #14203 https://github.com/pharo-project/pharo/pull/14203 - double click selection on symbols should include # #14160 https://github.com/pharo-project/pharo/pull/14160 - Fixed String>>#keywords #14157 https://github.com/pharo-project/pharo/pull/14157 # Refactoring Engine - Fixing remove hack #14154 https://github.com/pharo-project/pharo/pull/14154 - First version of the renameMethod as a driver. #14161 https://github.com/pharo-project/pharo/pull/14161 - New flow for MoveMethodsToClassSide #14192 https://github.com/pharo-project/pharo/pull/14192 - Improve deprecate method flow in driver #14186 https://github.com/pharo-project/pharo/pull/14186 - Cleanup: StRefactoringPreviewPresenter #14206 https://github.com/pharo-project/pharo/pull/14206 - Composing and reusing add method refactoring/transformation #14134 https://github.com/pharo-project/pharo/pull/14134 - 14191 failing tests rb code snippet testtest styler #14202 https://github.com/pharo-project/pharo/pull/14202 - Fix #14178: cleaning ui of refactoring to use Spec instead of UIManager #14181 https://github.com/pharo-project/pharo/pull/14181 # RPackage - Remove references to #allManagers in RPackage #14189 https://github.com/pharo-project/pharo/pull/14189 - Keep pushing for rpackage knowing their organizer #14187 https://github.com/pharo-project/pharo/pull/14187 - Simplify setup of RPackageOrganizer in tests #14204 https://github.com/pharo-project/pharo/pull/14204 - Simplification of the package validation #14223 https://github.com/pharo-project/pharo/pull/14223 - Rename #allManagers into #allWorkingCopies #14217 https://github.com/pharo-project/pharo/pull/14217 - Remove RPackageORganizer>>#hasRegistered #14231 https://github.com/pharo-project/pharo/pull/14231 # Protocol Cleanup - Rename ClyTaggedMethodsQuery into ClyMethodsInProtocolQuery #14188 https://github.com/pharo-project/pharo/pull/14188 - Clean #affectsMethodsTaggedWith: #14219 https://github.com/pharo-project/pharo/pull/14219 # Cleanup - better naming for presenter that are presenters #564 https://github.com/pharo-spec/NewTools/pull/564 - SmalltalkImage>>#newSpecialObjectsArray remove elements not used by the VM #14208 https://github.com/pharo-project/pharo/pull/14208 - 10568-hardcoded-class-definition-in-opal #14207 https://github.com/pharo-project/pharo/pull/14207 - fix-deprecated-send-testCreateGroupsForEveryMethodTag #14159 https://github.com/pharo-project/pharo/pull/14159 - changebrowser -> stChangeBrowserPresenter #14182 https://github.com/pharo-project/pharo/pull/14182 - Some users of inform: that could simply use the inform: from Object. #14180 https://github.com/pharo-project/pharo/pull/14180 - 14164--ChunkImportTestCasetestImportAMethodWithSpacesInItsCategory--calls-category #14194 https://github.com/pharo-project/pharo/pull/14194 - DeadCode-Cleanup-07-05 #14216 https://github.com/pharo-project/pharo/pull/14216 - 14162-UUIDGenerator-uses-of-deprecated-method-in-tests #14214 https://github.com/pharo-project/pharo/pull/14214 - This PR removes dead code related to VTerm output classes #14215 https://github.com/pharo-project/pharo/pull/14215 # Comments / Tests - Add tests for primitive adoptInstance and the sibling primitiveChangeClassTo #14220 https://github.com/pharo-project/pharo/pull/14220 - SmalltalkImage>>garbageCollect : correct method comment #14193 https://github.com/pharo-project/pharo/pull/14193 - Add test on installing a class in a non default environment #14222 https://github.com/pharo-project/pharo/pull/14222 - Added comments to the new instrumentation package #14228 https://github.com/pharo-project/pharo/pull/14228

July 10, 2023

Re: Video in Pharo

by Esteban Lorenzano

Hi, Heh, there were several problems around :) 1) Indeed, Ubuntu naming conventions were a problem for the gtk bindings. I updated them and now it should not be a problem (but you need to pull them again). 2) I assume you are using Pharo Launcher (or zeroconf directly). And this is a problem... PharoLauncher is a great idea, and for Windows is a mustbut in linux world it just does not matches the philosophy: There are many distrubutions and changes and is impossible to correctly distribute a VM with all dependencies without using the packaging they expect (we need to start thinking on distribute the VM as a flatpak, but that will take time to be implemented). You need to use the VM we provide with Open Build Service: https://software.opensuse.org//download.html?project=devel:languages:pharo:… 3) finally, this is not a real problem immediately, but a recommendation: Pharo has different ways of being ejecuted. The default one will execute the VM and everything needed in the main thread. This is usually suitable for Pharo needs, but it is a problem when the UI loop is required to run separately (not just for Gtk but any backend that you need to run on idle mode). Fortunaltely, Pharo implements also a way to be executed in a worker thread, making space so the main thread can be used for other purposes. We highly recommend that you execute Pharo using a worker thread (future versions of Spec-Gtk will require this usage, and is definitively better. How to execute in worker thread: pharo --worker MyImage.image --interactive I updated the README on pharo-spec/Spec-Gtk to precise this points. Cheers! Esteban On Jul 10 2023, at 7:17 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > Another step forward. > > I created a new ubuntu 22 install, installed pharo 11 and installed spec-gtk. The first issue was the libraries are named: libgobject-2.0.so.0 and libpango-1.0.so.0 with the â.0â suffix. I created links to those with the names spec-gtk is expecting. > > Then, the little test window opened but looked like this: > > > Is there something else Iâm missing? > > Thanks for your advice. > > Cheers, > > Phil > > > > On 9 Jul 2023, at 6:02 pm, Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > > Hi, > > Spec-Gtk should work without problems on P11, except on macs, where there is a known problem. > > what is the process you are taking to install it? where are you trying it? > > > > I don't know the status of the VLC bindings. > > Esteban > > On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > > The stark silence answers my question :) > > > > > > Soâ¦ > > > > > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? > > > > > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. > > > > > > Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) > > > > > > [1] https://github.com/badetitou/Pharo-LibVLC > > > [2] https://github.com/pharo-spec/Spec-Gtk > > > > > > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > > > Thanks in advance. > > > > Cheers, > > > > J

July 10, 2023

Re: Video in Pharo

by Jupiter Jones

Another step forward. I created a new ubuntu 22 install, installed pharo 11 and installed spec-gtk. The first issue was the libraries are named: libgobject-2.0.so.0 and libpango-1.0.so.0 with the â.0â suffix. I created links to those with the names spec-gtk is expecting. Then, the little test window opened but looked like this: ï¿¼ Is there something else Iâm missing? Thanks for your advice. Cheers, Phil > On 9 Jul 2023, at 6:02 pm, Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > > Hi, > > Spec-Gtk should work without problems on P11, except on macs, where there is a known problem. > what is the process you are taking to install it? where are you trying it? > > I don't know the status of the VLC bindings. > > Esteban > > On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > The stark silence answers my question :) > > Soâ¦ > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. > > Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) > > [1] https://github.com/badetitou/Pharo-LibVLC > [2] https://github.com/pharo-spec/Spec-Gtk > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > Thanks in advance. > > Cheers, > > J

July 10, 2023

Re: Video in Pharo

by Russ Whaley

I can't help you with GTK as I'm one of the unfortunate Mac users. However, I've used the Pharo-LibVLC extensively - although not for video, so my experience may or may not be relevant for you. One of the capabilities for Pharo that is sorely under-documented is FFI. Yes, there is an FFI document, and no, it was not helpful to me when using VLC. Admittedly, I am notoriously dim-witted, however I was unable to grasp how to set up a call-back for/from VLC. Some of this has to do with the poor VLC documentation... i.e. trying to find a method/memVar that lets you know when a song has ended! There are a couple of 'got'chas' in the VLC package that locked me up dozens of times before I wrote work-arounds - but the biggest issues I've encountered is not knowing what VLC is doing... ie: - is it still playing? -I'd like to start the next song in MY playlist - so I can show which song is playing - I can't find a method in VLC that tells me this - where is it in the song (progress/time)? I'd like to show a progress bar for the song that is playing. - I'd like to know if another service in Pharo is currently using the library - as multiple calls also locks it up. - statuses are inconsistent - (playing, stopped, mute, etc.) - depending on when you ask. If you ask whether VLC is muted - when a song is not playing, it might say yes or no (usually no). But then the song plays and you get no sound... yup, it was muted. Overall, Pharo-LibVLC is a great leg up in using VLC, but I had to put that project on hold as I couldn't solve the issues above. Let me know if you start working with Pharo-LibVLC in earnest - I'd love to share experiences and see if we can help each other. Thanks, Russ On Sun, Jul 9, 2023 at 4:02â¯AM Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > Hi, > > Spec-Gtk should work without problems on P11, except on macs, where there > is a known problem. > what is the process you are taking to install it? where are you trying it? > > I don't know the status of the VLC bindings. > > Esteban > > On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > The stark silence answers my question :) > > Soâ¦ > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to > create a video widget/component. Does anyone with more in depth knowledge > of Spec2 and GTK foresee any obvious blocks? > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] > without the image crashing on startup. I see someone has already logged > the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it > also ate all the memory then crashed. > > Is there a Pharo version that will work with the Spec2 GTK+ binding > installed? Maybe Iâm looking at this too early :) > > [1] https://github.com/badetitou/Pharo-LibVLC > [2] https://github.com/pharo-spec/Spec-Gtk > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to > play video in Pharo? > > Thanks in advance. > > Cheers, > > J > > -- Russ Whaley whaley.russ(a)gmail.com

July 9, 2023

Re: Video in Pharo

by Jupiter Jones

Hi Esteban, Thanks for your reply. Iâm running on macOS so I think youâve helped me identify the issue :) The target is macOS and PiOS so Iâll give it a go on the pi. For now I can work on Linux until the Mac issue is resolved. The process is to zeroconf pharo 11, then install spec-gtk based on the instructions on GitHub: Metacello new repository: 'github://pharo-spec/Spec-Gtk'; baseline: 'SpecGtk'; onConflict: [ :e | e useIncoming ]; onUpgrade: [ :e | e useIncoming ]; ignoreImage; load â¦then save and quit. Relaunching fails. Iâll keep an eye out for the macOS fix. Thanks again for your help. Cheers, J > On 9 Jul 2023, at 6:02 pm, Esteban Lorenzano <estebanlm(a)netc.eu> wrote: > > Hi, > > Spec-Gtk should work without problems on P11, except on macs, where there is a known problem. > what is the process you are taking to install it? where are you trying it? > > I don't know the status of the VLC bindings. > > Esteban > > On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > The stark silence answers my question :) > > Soâ¦ > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. > > Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) > > [1] https://github.com/badetitou/Pharo-LibVLC > [2] https://github.com/pharo-spec/Spec-Gtk > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > Thanks in advance. > > Cheers, > > J

July 9, 2023

Re: Video in Pharo

by Esteban Lorenzano

Hi, Spec-Gtk should work without problems on P11, except on macs, where there is a known problem. what is the process you are taking to install it? where are you trying it? I don't know the status of the VLC bindings. Esteban On Jul 9 2023, at 2:53 am, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > The stark silence answers my question :) > > Soâ¦ > > I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? > > First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. > > Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) > > [1] https://github.com/badetitou/Pharo-LibVLC > [2] https://github.com/pharo-spec/Spec-Gtk > > > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > Thanks in advance. > > Cheers, > > J

July 9, 2023

Re: Video in Pharo

by Jupiter Jones

The stark silence answers my question :) Soâ¦ I found a nice binding to VLC [1] and was thinking of using Spec2 GTK+ to create a video widget/component. Does anyone with more in depth knowledge of Spec2 and GTK foresee any obvious blocks? First block :) I canât find a way to play with the Spec2 GTK+ binding [2] without the image crashing on startup. I see someone has already logged the issue in GitHub for 10 and 11, and I tried 12 just for fun, and it also ate all the memory then crashed. Is there a Pharo version that will work with the Spec2 GTK+ binding installed? Maybe Iâm looking at this too early :) [1] https://github.com/badetitou/Pharo-LibVLC [2] https://github.com/pharo-spec/Spec-Gtk > On 3 Jul 2023, at 5:07 pm, Jupiter Jones <jupiter.jones(a)mail.com> wrote: > > Can anyone point to to some library, documentation or examples of how to play video in Pharo? > > Thanks in advance. > > Cheers, > > J

July 9, 2023

Video in Pharo

by Jupiter Jones

Can anyone point to to some library, documentation or examples of how to play video in Pharo? Thanks in advance. Cheers, J

July 3, 2023

Summer school at Split

by stephane ducasse

Hello people We are so excited to announce the Immersive Pharo Summer School, to be held fro 11th to 15th of September in Split, Croatia. If you are or you have a student or a newcomer interested to learn about Pharo and technologies around it, please find more info and apply at https://newcomers.pharo.org/. See you in Split! Summer school team

July 3, 2023