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    Dynamically load instruments over the Internet?

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    • bthjB
      bthj
      last edited by bthj

      Hi

      Is it possible to build an app / plugin with HISE where the samples are loaded dynamically over the Internet from a server?

      • that is, could in interface be developed with HISE where the user can browse lists of different instruments, where the lists themselves are dynamically loaded and when selected, the instrument sample file content would be downloaded (and preferably cached) along with other metadata content, such as Sample Maps, ADSR config, etc.?

      I'm just starting to look into HISE and before diving further in, I'd like to make sure it's the right tool for such development. The Server documentation seems to indicate this should be possible, but I still lack an overall picture of HISE's capabilities and whether it is intended for such development?

      d.healeyD 1 Reply Last reply Reply Quote 0
      • d.healeyD
        d.healey @bthj
        last edited by

        @bthj Yes, you can download files with HISE.

        Libre Wave - Freedom respecting instruments and effects
        My Patreon - HISE tutorials
        YouTube Channel - Public HISE tutorials

        bthjB 1 Reply Last reply Reply Quote 0
        • bthjB
          bthj @d.healey
          last edited by bthj

          Thanks @d-healey .

          Is it possible to perform (web) authentication first? - like popping up a login window (web form) for obtaining credentials (like a JWT) for use in subsequent download calls? (I do see the possibility of setting a http header, just wondering if it is possible to obtain the data from an external login flow)

          d.healeyD 1 Reply Last reply Reply Quote 0
          • d.healeyD
            d.healey @bthj
            last edited by

            @bthj Yes. You might find these threads interesting - https://forum.hise.audio/topic/4967/woocommerce-linked-licensing-system-for-your-plugins, https://forum.hise.audio/topic/3850/get-data-from-woocommerce-via-server-api

            Libre Wave - Freedom respecting instruments and effects
            My Patreon - HISE tutorials
            YouTube Channel - Public HISE tutorials

            bthjB 1 Reply Last reply Reply Quote 0
            • bthjB
              bthj @d.healey
              last edited by

              Thanks again, @d-healey - will be diving in :)

              d.healeyD 1 Reply Last reply Reply Quote 0
              • d.healeyD
                d.healey @bthj
                last edited by

                @bthj I have some videos on Patreon about downloading files which you might find useful, nothing about the JWT stuff though.

                Libre Wave - Freedom respecting instruments and effects
                My Patreon - HISE tutorials
                YouTube Channel - Public HISE tutorials

                bthjB 1 Reply Last reply Reply Quote 0
                • bthjB
                  bthj @d.healey
                  last edited by

                  @d-healey Great! I'll look into those as well.

                  bthjB 1 Reply Last reply Reply Quote 1
                  • bthjB bthj has marked this topic as solved on
                  • bthjB
                    bthj @bthj
                    last edited by bthj

                    Now I have written some code towards this functionality - a milestone for me, as this is the first thing I've actually done with HISE.  Really enjoyable getting to know this project and community.

                    What I've done so far is:

                    • hardcode a list of sample map IDs, to be dynamically fetched via some API endpoint
                    • when not available locally, download the corresponding samples monolith HLAC to the Samples folder
                    • then fetch the sample map Base64 encoded and load it into the Sampler

                    The task in the last bullet is done every time a sample map is selected (for now via combobox), which wastes a bit of network resources (and I have to choose Tools -> Clear all Samplemaps, so they won't be saved in the archive/xml).  It would be good to save the sample map in the filesystem, like the HLAC monoliths, and maybe just download it as xml rather than base64 encoded, but there doesn't seem to be a Special Location for the SampleMaps folder.  Is there some way to obtain a filesystem reference to that folder, as a target for Server.downloadFile?

                    Here's the code I've written so far:

                    // sampler
                    const var Sampler = Synth.getChildSynth("Sampler").asSampler();
                    
                    // sample maps array
                    const var sampleMaps = [
                      "fg_01FFRFAGFF9M9R8D6AWHTX7XB9",
                      "fg_01FNAAJA8CXA8CNAXAGVWJN0HA"
                    ];  // TODO: fetch samples list from some API endpoint, instead of this hardcode
                    
                    // Internet communication
                    Server.setBaseURL("https://storage.googleapis.com");
                    
                    // combo box
                    const var cmbSampleMap = Content.getComponent("cmbSampleMap");
                    cmbSampleMap.set("items", sampleMaps.join("\n"));
                    
                    
                    // sample map selection
                    
                    // - sample map downloaded as base64 and loaded into a Sampler
                    inline function fetchAndLoadSampleMap( sampleMapId ) {
                    	local sampleMapBase64FileName = sampleMapId + ".txt";
                    	Server.callWithGET( 
                    		"/synth_is_samples/map/" + sampleMapBase64FileName, 
                    		{}, 
                    		function(status, sampleMapBase64) {
                    			Console.print("sample response: " + sampleMapBase64);
                    			Sampler.loadSampleMapFromBase64( sampleMapBase64 );
                    		}
                    	);
                    }
                    
                    // - combo box callback with conditional  
                    // samples monolith download and  storeage in filesystem
                    const var samplesFolder = FileSystem.getFolder(FileSystem.Samples);
                    inline function oncmbSampleMapControl(component, value)
                    {
                    	var sampleMapId = sampleMaps[value-1];
                    	
                    	// ensure samples monolith is available
                    	local samplesFileName = sampleMapId + ".ch1";
                    	local samplesFile = samplesFolder.getChildFile( samplesFileName );
                    	Console.print("samplesFile: " + samplesFile.isFile());
                    	if( ! samplesFile.isFile() ) { // we need to download the file
                    		Server.downloadFile(
                    			"/synth_is_samples/hlac/" + samplesFileName, 
                    			{}, 
                    			samplesFile, 
                    			function() {
                    		    	var message = "";
                    		    	message += Engine.doubleToString(
                    		    		this.data.numDownloaded / 1024.0 / 1024.0, 1
                    		    	);
                    				message += "MB / " + Engine.doubleToString(
                    					this.data.numTotal / 1024.0 / 1024.0, 1
                    				) + "MB";
                    		    
                    		    Console.print(message);
                    			
                    			if( this.data.finished && this.data.success ) {
                    				Console.print( "Samples loaded" );
                    				fetchAndLoadSampleMap( sampleMapId );
                    			}
                    		});
                    	} else { // samples monolith is present, so we can go ahead and load the sample map
                    		fetchAndLoadSampleMap( sampleMapId );
                    	}
                    };
                    
                    • and a snippet of the project:
                    HiseSnippet 2568.3oc4YrsaabbcojWCSZ2Tmf7PeoESYKBnfk4MKqKV0wh5BsUrtAQ5KAoFBi1cH4Ts6NK1YVIwFHfh9Wj25mP+AJPds+M4On8blcWtConTUDRBRPIfL4bl4Lm62FePjvgIkhHqBE6NLjYU3A1cFFnFrw.JOvZ6MsJ76rOidJ6DtmK6HI0OzicjOM7HOA0kGz2Z8ggToj4ZUnvruDwoPw6Xo+7cuXcpGMvgkCxx5sBtCaGtOWkC8f0dM2yqM0k0k6ab5EVaaGQvFBOQLveyZW2Jj5bBsOaOJdrYrsJb2sb4JQTGEUwjVEty5B2gcFHNKH47ukK4G6wvEMr5.WTB31BPXbSfZsw.PzNHSOHsrJXePtVY1DsxmZuK2kOBdt14g5MH4XXpOJLy3r2riwdMLYu5Fr2TXoBFrzcRXoO1tiSDOTkuCxO22d6.EKpGET6lrRxYsl4ece6MDvIBTU8omvZGAKFgQkEqWedRy50ma0RkpUijXtiJAVAohbJMhzIAB44DsWR09LklY0qpTNc6xyUkJS+ckz6p69at+yHC.CHQIfuOkQnADd.WwoddCINdL39SnHAbv.bRugp5sRVrKMrxXLGdTIgFEQGZvlxrCKANEOb1UA76nKZGtTgW1WUhPJ2q+Q0azt8gsa8x1sWY2UNb4MWr06dU22uz6Wekxymej8Z05KZs7FuG9auVuu0Ke669h8p+pVkK8gUIjQxYOlxYPJaHId.kH8hD9DovmQZcv1DVfanfGnlGTAREi5RD8HpAbInZhbcDtLsPpMMALEwQ36GGvcnJtHnTGVzofzHYp0oR1aNbmJkGnTgxmUqlD72fPjp8Eh9fdKjKqB3VNUoA+7XA4Xw4FJKG+iGoS.0Ul6AZZE9gh.XQkxlGBuLy0HeToLWw7kkm2P2W8u.RXkx+4fxycIaFQx7XNZggG3wCXjdwA50I5tVAt6.YXxs54261tj4HecohdBGpWNXTSr3Bs4d5zCffXhviHkqpNWUd0RES0c.tduiqF7xs5VgTpXwx0jnO7QbYZVNYMfMqUFP8JHw7HZe8E5uxX9JRHTOVN+j3nY3hEAcqT3wpFFwQkZp5HhIA0rj8LxTnFn4.Dy7e8L0IPvqexgpLIVDMZWTpH78EktTjgTmADCiQgoyPvCzGM3IfqX.LgXR3ZlzLIBL8APulHgWEmLWl4Ax4EylqDH3FAfiI.Ux8U9J8oebiOfLdohiEDC1OCqY9Q0mDtaVfLNhMJZyWDH7.KKABlnmR4dTHG63tKxqwMwYPCzM4RGezQSUdix8gaV4RWLJGS0bqOhooVCnJW+UELRoHuWExuep6hd9XVlyXj.FyESk5BkSPsJj8.rNbTTy7wy1RiK5FMEm7AdTmZSvLi7tybuKZrYBfQN7Id1D3i1n4CkhfzOfxpLpES1HC3idNYqf9fWDvYwfQoqniBTM8qjcvhXFvptTEsZPr+lorOHm0HMp2bgp0G8i4IMxPJIBwjHk2cc3fnPckjq3DzpqPAl6qfLEKNG5Zr65iDozuF2.mxAI7C9GZGyoROnXmb.HLe1mY.UF6fkuIoYHlvmgjVREpgnUDkIoR6MIIo9jWf4AvedAg4IYItOSKTIDRCoiakBz8xApN2WPnCvZSz.WxHeLiZz2X9.xAoCUybZOixgJhhHBkfIhOFZK3YDRVMLWgirJngXUowtbQMot4Evxk+qGCU1RWERCXd03AtryqNP468GfxQocmlc2HsmdtWPJRhEmVGBsjooWwnxKfRX2jZiX0vzrgajR9JSMWIVSTWUbiXnnsO+uxzp2SXCOV.8.Pd7UpO3H9tw5.vZJn63Z9wRtyig55ZMPIPyVgCwf0WkvI+IRilKA+3QORmLFbJ4jOG1C8CgceNYgFyUB8lQGvz.FPFdMaXRq2U3ySpedyls0elaUs+O9OWn+WzqJEcc33UdCKsTc8GPtSv9hjFCwldbXXiNRsBHhF.gwbnBSbDIzKFtNxYf4UbFohbnuOSEMTma+LF1N0b4cWlS5cDvlHCzUrIWF5QGV4IqL2pFEu1SnX6CouPUx3tF6lDFiFY7P6E6eL1FqtRJYxanWujqXh8RMw59emx13bNQWGhUBzT0rHJdPn4+wmnv9pmnvbfGmD+ViCJB1FZ8d+PVvUMFjUpyNN8QJWAGUom83goydrA1N45hys3vPFejsoStklyMmFz5MauIjwK69fqFHWHKRwQIovlrSgQCSlson8lL4IJQHLk2n.MqB26lS8yyo7mu1PyYJ08oZU341WaK+kt1t8s7o.ArKLCbimwcUCFQf+1IqMfw6OPYReKCY3ApzAJSjg1PlJLeVWnxpVN901lfZXJHVVFBxWt13D9a+6Whve4Zo54DkZI6WmlZw539YSU+.6EZt7BKs3JOY45VnpIai6auvSatxxKr7SZX.uYBFqrvJKtTyUdpk1fNyGJXiA+kg6+cHSU9YjFXwSDVZ329NJXjujXIX6dTHqgdeHREPC.kb7WwSVAorzqSxM9xHZ3.tibLL2j0iF6oZEFBiGhuy.rqJJNYy0g1ZNAtpCwAlvau5hqn+r7x0WZk5K0Pepth9vPR6BSaM1MiizCi3G.0UPVQC6MR1agAVDQF7xHpAa11ip5nF5MwMcvVYJ8IgCgvQpbpzLC9VAtFzdwRWXoXmqLeEDqK+X.OzFDhXfEF+sIvGjIcCH8xXOH.NYYfjqFZFh9C1CVbSYwO19.Nz.wz4wYlBOBYO9wfGSelmek8V85AV4bF7N1se+ONuoiI4+sIj+SrgFTYTeH3OscDMOTzNa0O.O1V3M9w1NHhomVCZLI+Xe6ZqGCpnnwg9OWSSpV9h3fwnUJieHChQUXbV9l2asCO7kQh3vIw56dg1mnaDDAiuvnwF6Gv.UsxTF2HRHk8.wQeWRysNHNpOpqxgbHCFKRNNLHmTZ7FVOsPA.DDNilWtytTXfgwx.qoR8tTsIdF6j0MlXcyIV+jIVuvDqe5DqWbh0KkudTENzw.eAzIZH3t2rFBfK3.rsYiStNued4SMj+GOS5c+Y2yj9KfDii8RtEy3wNbTwuUvoPDG.A4wOwNs9VFzFiwk6BStENPDvcF2+F7W62mEYx6SJP+iu4a92unkRAgW4G6SW6PlGCl1IGzebscftooQiG198RWz368qZOU60uwNgcIXJKxubKnM6+2TP65TQeTZ4LhtCneFZCefsNqKAKR9SI6cnHF66OqniMTYpCTM1gYVeBG4HcccbMxDcXAt5E+G3S5lMxJlga1HaSKmrqBjmzeq6guvrr.rHituKOnLomoKpDp4irDTv4mDtzm5DINxIYpSjWumFBvkA5+q+JZuKtlzHaJSa65Uqa4C0XNxwAcxeLTxZ53z7VfyStE3rvs.mmdKvYwaANKcKvY4qEGr7dqXXTsjjd.fC1JwwpvVibrl05+hLTr5H
                    
                    d.healeyD 1 Reply Last reply Reply Quote 0
                    • d.healeyD
                      d.healey @bthj
                      last edited by

                      @bthj Since the samples maps are predefined anyway why not just include them with the plugin instead of downloading them?

                      Libre Wave - Freedom respecting instruments and effects
                      My Patreon - HISE tutorials
                      YouTube Channel - Public HISE tutorials

                      bthjB 1 Reply Last reply Reply Quote 0
                      • bthjB
                        bthj @d.healey
                        last edited by bthj

                        @d-healey The aim is not to have the sample maps predefined, but generated mechanically.

                        For a bit of a context: I'm exploring those possibilities for the synth.is project, where you can evolve sounds[1], render them as sample packs and currently download them along with programmatically generated SFZs[2]. Many things broken there and I aim to continue working on this research project in the coming years, but all are very much welcome to play with this (I know the interactive evolution part is broken, which is a regression resulting from work on quality diversity search for sounds - I welcome requests for accelerated fixes : )

                        Just as SFZs can currently be rendered and downloaded, it would be nice to be able to obtain those sounds directly in a plugin.

                        [1] https://youtu.be/dm2cgPqQVP0
                        [2] https://youtu.be/3eLo8qORiMQ
                        (YouTube links here as inlining above was causing problems)

                        bthjB 1 Reply Last reply Reply Quote 1
                        • bthjB
                          bthj @bthj
                          last edited by

                          The approach I have currently implemented is maybe ok - sample maps are not large so redundant downloading isn't a big problem - but if it is possible to persist them in the plugin folder structure, then it would be interesting to try that out as well.

                          d.healeyD 1 Reply Last reply Reply Quote 0
                          • d.healeyD
                            d.healey @bthj
                            last edited by

                            @bthj said in Dynamically load instruments over the Internet?:

                            The approach I have currently implemented is maybe ok - sample maps are not large so redundant downloading isn't a big problem - but if it is possible to persist them in the plugin folder structure, then it would be interesting to try that out as well.

                            You could write the string to a file.

                            Libre Wave - Freedom respecting instruments and effects
                            My Patreon - HISE tutorials
                            YouTube Channel - Public HISE tutorials

                            bthjB 1 Reply Last reply Reply Quote 0
                            • bthjB
                              bthj @d.healey
                              last edited by

                              @d-healey Wouldn't it be best placed in the SampleMaps folder? - then I'm wondering how to get a filesystem handle on that folder.

                              bthjB d.healeyD 2 Replies Last reply Reply Quote 0
                              • bthjB
                                bthj @bthj
                                last edited by bthj

                                Tried something like:

                                samplesFolder.getParentDirectory().getChildFile("SampleMaps").getChildFile(sampleMapFileName);
                                

                                which works, so I'll probably go that route, if it isn't some kind of an anti-pattern?

                                1 Reply Last reply Reply Quote 0
                                • d.healeyD
                                  d.healey @bthj
                                  last edited by

                                  @bthj said in Dynamically load instruments over the Internet?:

                                  @d-healey Wouldn't it be best placed in the SampleMaps folder?

                                  There is no sample maps folder once your project is compiled to a plugin, all the sample maps are embedded in the binary.

                                  Libre Wave - Freedom respecting instruments and effects
                                  My Patreon - HISE tutorials
                                  YouTube Channel - Public HISE tutorials

                                  bthjB 1 Reply Last reply Reply Quote 0
                                  • bthjB
                                    bthj @d.healey
                                    last edited by

                                    @d-healey Thanks for the insight. Then it makes sense that there is no Special Location FileSystem constant for that folder. I'll just download the sample maps to the Samples folder, alongside the monoliths, Base64 encoded for loading with Sampler.loadSampleMapFromBase64.

                                    bthjB 1 Reply Last reply Reply Quote 0
                                    • bthjB
                                      bthj @bthj
                                      last edited by

                                      The above procedure of downloading the files to FileSystem.Samples works fine, until running on iOS, where the Samples folder seems to be part of the read-only app bundle. So downloading to FileSystem.Documents might be a better idea, but after loading the sample map, the Sampler seems to be fixed on searching for the files in FileSystem.Samples.

                                      Is there some way to instruct Sampler to look for the (monolith) samples in FileSystem.Documents?

                                      bthjB 1 Reply Last reply Reply Quote 0
                                      • bthjB
                                        bthj @bthj
                                        last edited by

                                        Made a couple of changes which solve this issue on iOS, discussed here:

                                        Link Preview Image
                                        Dynamically download samples on iOS · Issue #265 · christophhart/HISE

                                        Downloading samples into the FileSystem.Samples directory doesn't work on an iOS device (though it works on a simulator), where the Samples folder seems to be part of the read-only app bundle. A couple of changes solve this particular is...

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                                        GitHub (github.com)

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