{"action":"opened","issue":{"url":"https://api.github.com/repos/libertyernie/brawltools/issues/61","repository_url":"https://api.github.com/repos/libertyernie/brawltools","labels_url":"https://api.github.com/repos/libertyernie/brawltools/issues/61/labels{/name}","comments_url":"https://api.github.com/repos/libertyernie/brawltools/issues/61/comments","events_url":"https://api.github.com/repos/libertyernie/brawltools/issues/61/events","html_url":"https://github.com/libertyernie/brawltools/issues/61","id":162006534,"number":61,"title":"Help with ADPCM decoder","user":{"login":"Wohlstand","id":6751442,"avatar_url":"https://avatars.githubusercontent.com/u/6751442?v=3","gravatar_id":"","url":"https://api.github.com/users/Wohlstand","html_url":"https://github.com/Wohlstand","followers_url":"https://api.github.com/users/Wohlstand/followers","following_url":"https://api.github.com/users/Wohlstand/following{/other_user}","gists_url":"https://api.github.com/users/Wohlstand/gists{/gist_id}","starred_url":"https://api.github.com/users/Wohlstand/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Wohlstand/subscriptions","organizations_url":"https://api.github.com/users/Wohlstand/orgs","repos_url":"https://api.github.com/users/Wohlstand/repos","events_url":"https://api.github.com/users/Wohlstand/events{/privacy}","received_events_url":"https://api.github.com/users/Wohlstand/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-06-23T19:42:03Z","updated_at":"2016-06-23T19:42:03Z","closed_at":null,"body":"Hello!\r\nI'm a developer of own platform game engine. For my purposes I was been forked C coded SDL Mixer 2.0 audio library to fix some bugs and imperfections myself and add support of more audio formats.\r\n\r\nThis library had:\r\n* MP3 (libMAD)\r\n* WAV/VOC (own parsing code)\r\n* OGG (libOGG)\r\n* FLAC (libFLAC)\r\n* MIDI (Native Windows / OS-X / Haiku MIDI inreface / Timidity)\r\n* ModPlug (most of tracker formats support)\r\n\r\nAdded by me:\r\n* Support of loop-tags (LOOPSTART and LOOPEND/LOOPLENGHT) for OGG files\r\n* GME (support of NSF, SPC, HES, etc.)\r\n* Additional MIDI driver - libADLMIDI (plays MIDI's with emulated OPL3 chip. Alone MIDI-library which supports loop tags. Also can play Wolf3D IMF-files)\r\n\r\nI thinking to add support of playing BRSTM's too, but at first I need to correctly decode ADPCM which I see in your code. Can you shortly describe me which files I should dig to learn ADPCM decoding algorithm? I going to make a decoding library in C from scratch to take it into my SDL Mixer fork.\r\n\r\nSource of library: https://github.com/Wohlhabend-Networks/PGE-Project/tree/master/_Libs/SDL2_mixer_modified\r\nLibrary in action (a music player program based on this library): http://wohlsoft.ru/docs/_builds/PGE_MusPlay/pge-musplay-win32.zip\r\n\r\n***Small trivia:***\r\nAnyway, OGG compression is much better than ADPCM (and in comparison with MP3, it doesn't hurts quality a lot), even I implemented loop tags support to have true looping musics in my library fork. But I still need to have right ADPCM decoder to make a BRSTM -> OGG converter with automatic adding of loop tags.\r\n"}}
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