Playing wav file from any point
BlitzPlus Forums/BlitzPlus Programming/Playing wav file from any point
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| I'm trying to make a wave file editor in Blitzplus. I have all the 'format' data stored in variables and the sample data for the currently loaded file stored in a bank. I also have the sample data rendered to a canvas(thanks Mahan), with a cursor for the user to move around. My problem - how can I play the wave file from any position that the user selects? Is there a way to move through the sample bank to play the file from a given start point? Any ideas? Thanks. |
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| You could create a copy of the wave bank from the address the user had clicked. Then play that copied bank. |
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| That's what I would like to do. Problem is, how do I play a sound from a bank ? Are there commands or techniques that I'm unaware of that can do this ? |
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| I'm pretty sure that is a bit hard unfortunately :/ Problem in both BlitzPlus and Blitz3D regarding banks is exactly that: We don't have a stream interface for the banks. What Blitz3D and BlitzPlus would benefit immensely from would be: 1.) Add "Load*" commands (LoadMesh(), LoadImage() etc.) compatible with the existing Stream interface. (The one used for Files, Network already) 2.) Adding a "BankStream" i.e. to be able to treat bank as a simple Write or Read stream. I assume BRL won't add such additions to these languages at this time as BlitzMax is the "new thing". What you can do is have your app creating a temporary .wav-file and load+play it. I assume you already explored the .wav format a little, and it's not the whole world to write both readers and writers for them, from/to a bank. |
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| That was the only solution I could come up with. Not the quickest or most efficient of solutions, but I guess It'll do for now. I already have the .wav writing routine in place - so I can re-work some of the 'format' chunk & sample data to save to a temp file for playing. Thanks for the input. |
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