[Haskell-cafe] sdl-mixer loading issue
Hello, I am trying to use the SDL-mixer bindings to play wav files. I've hit a wierd error and I can't figure out how to solve it: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Loading package SDL-0.5.4 ... linking ... done. Loading package SDL-mixer-0.5.2 ... linking ... interactive: /home/norbert/bin/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' I've looked up the source code; Mix_LoadWAV seems to be #defined, so I suspect it's some kind of library path issue but I don't grok the whole system well enough to figure it out; maybe someone could point me in the right direction? Have the issue now on Ubuntu 8.04 and previously had the same issue when I tested it on a FreeBSD box. I did install all of the libsdl-*-dev in the Ubuntu repo. - Norbert ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
On Tue, 24 Jun 2008, Norbert Wojtowicz wrote: Hello, I am trying to use the SDL-mixer bindings to play wav files. I've hit a wierd error and I can't figure out how to solve it: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Is the package installed? Otherwise you may have to give an -lSDL_mixer option when starting ghci. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
wojtowicz.norbert: Hello, I am trying to use the SDL-mixer bindings to play wav files. I've hit a wierd error and I can't figure out how to solve it: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Loading package SDL-0.5.4 ... linking ... done. Loading package SDL-mixer-0.5.2 ... linking ... interactive: /home/norbert/bin/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' I've looked up the source code; Mix_LoadWAV seems to be #defined, so I suspect it's some kind of library path issue but I don't grok the whole system well enough to figure it out; maybe someone could point me in the right direction? Have the issue now on Ubuntu 8.04 and previously had the same issue when I tested it on a FreeBSD box. I did install all of the libsdl-*-dev in the Ubuntu repo. Ah, well spotted. I get the same issue on Arch, in ghci: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS /usr/share/hback-0.0.3/sounds/t.wav interactive: /usr/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' Looking in the source we see: foreign import ccall unsafe Mix_LoadWAV mixLoadWAV :: CString - IO (Ptr ChunkStruct) Lemmih, any ideas? -lSDL and -lSDL_mixer seem to be there. -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
lemming: On Tue, 24 Jun 2008, Norbert Wojtowicz wrote: Hello, I am trying to use the SDL-mixer bindings to play wav files. I've hit a wierd error and I can't figure out how to solve it: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Is the package installed? Otherwise you may have to give an -lSDL_mixer option when starting ghci. That's not enough, for some reason: $ ghci -lSDL_mixer Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav interactive: /home/dons/.cabal/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' Despite it being defined in $ grep Mix_LoadWAV /usr/lib/* Binary file /usr/lib/libSDL_mixer-1.2.so.0 matches Binary file /usr/lib/libSDL_mixer-1.2.so.0.2.6 matches Binary file /usr/lib/libSDL_mixer.a matches Binary file /usr/lib/libSDL_mixer.so matches Hmm. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
Em Ter, 2008-06-24 às 14:57 -0500, Norbert Wojtowicz escreveu: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Loading package SDL-0.5.4 ... linking ... done. Loading package SDL-mixer-0.5.2 ... linking ... interactive: /home/norbert/bin/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' Hello. SDL-mixer does not support the most recent SDL version. The problem is that in SDL now Mix_LoadWAV is a macro. -- Marco Túlio Gontijo e Silva Página: http://marcotmarcot.googlepages.com/ Blog: http://marcotmarcot.wordpress.com/ Correio: [EMAIL PROTECTED] XMPP: [EMAIL PROTECTED] IRC: [EMAIL PROTECTED] Telefone: 25151920 Celular: 98116720 Endereço: Rua Turfa, 639/701 Prado 30410-370 Belo Horizonte/MG Brasil ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
marcot: Em Ter, 2008-06-24 às 14:57 -0500, Norbert Wojtowicz escreveu: Prelude import Graphics.UI.SDL.Mixer.Music Prelude Graphics.UI.SDL.Mixer.Music loadMUS test.wav Loading package SDL-0.5.4 ... linking ... done. Loading package SDL-mixer-0.5.2 ... linking ... interactive: /home/norbert/bin/lib/SDL-mixer-0.5.2/ghc-6.8.2/HSSDL-mixer-0.5.2.o: unknown symbol `Mix_LoadWAV' ghc-6.8.2: unable to load package `SDL-mixer-0.5.2' Hello. SDL-mixer does not support the most recent SDL version. The problem is that in SDL now Mix_LoadWAV is a macro. Ah ha, so it needs a cbits wrapper over the macro. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
SDL-mixer does not support the most recent SDL version. The problem is that in SDL now Mix_LoadWAV is a macro. I've tried it with SDL-0.5.2 from hackage as well with the same problem. (Unless you mean an earlier version of the actual SDL library?) Ah ha, so it needs a cbits wrapper over the macro. This is above my head. If we know what the problem is, will this by any chance hit someone's todo list soon or is this a big hurdle? Are there any other cross-platform (windows + linux at the minimum) ways of playing sounds that anyone can recommend? - Norbert ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
wojtowicz.norbert: SDL-mixer does not support the most recent SDL version. The problem is that in SDL now Mix_LoadWAV is a macro. I've tried it with SDL-0.5.2 from hackage as well with the same problem. (Unless you mean an earlier version of the actual SDL library?) Ah ha, so it needs a cbits wrapper over the macro. This is above my head. If we know what the problem is, will this by any chance hit someone's todo list soon or is this a big hurdle? Are there any other cross-platform (windows + linux at the minimum) ways of playing sounds that anyone can recommend? Attached is a patched version of SDL_mixer 0.5.2 with a C wrapper for this macro. I'm now able to run loadWAV in ghci. We need to have the maintainer upload the amended version to Hackage, or to give me leave to do so. -- Don SDL-mixer-0.5.2.1.tar.gz Description: GNU Zip compressed data ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
Attached is a patched version of SDL_mixer 0.5.2 with a C wrapper for this macro. I'm now able to run loadWAV in ghci. Works for me, thanks! Now I just need to learn how to make my WAVs sound not like computer-generated children voices. For example, using the hback wav files and this: import Control.Concurrent (threadDelay) import Graphics.UI.SDL.Mixer.General import Graphics.UI.SDL.Mixer.Music main = do openAudio 22050 AudioS16Sys 2 4096 w - loadMUS c.wav playMusic w 1 threadDelay 200 freeMusic w closeAudio It plays (which is an immense improvement), but I can't get it to sound the way it does from eg. mplayer. I have almost no knowledge of the inner workings of computer sound drivers, so if there is something obvious I'm missing please do speak up. - Norbert ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] sdl-mixer loading issue
On Tue, Jun 24, 2008 at 6:34 PM, Norbert Wojtowicz [EMAIL PROTECTED] wrote: Attached is a patched version of SDL_mixer 0.5.2 with a C wrapper for this macro. I'm now able to run loadWAV in ghci. Works for me, thanks! Now I just need to learn how to make my WAVs sound not like computer-generated children voices. For example, using the hback wav files and this: import Control.Concurrent (threadDelay) import Graphics.UI.SDL.Mixer.General import Graphics.UI.SDL.Mixer.Music main = do openAudio 22050 AudioS16Sys 2 4096 This is probably the issue. Most wavs are sampled at 44100, not 22050, and I think you have to ask mplayer specifically to downsample. Changing this to openAudio 44100 AudioS16Sys 2 4096 should do the trick. Luke w - loadMUS c.wav playMusic w 1 threadDelay 200 freeMusic w closeAudio It plays (which is an immense improvement), but I can't get it to sound the way it does from eg. mplayer. I have almost no knowledge of the inner workings of computer sound drivers, so if there is something obvious I'm missing please do speak up. - Norbert ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
