log src/audio/SDL_audiocvt.c @ 5081:f2d8e0b59cca

age author description
Sun, 24 Jan 2010 21:10:53 +0000 Sam Lantinga Fixed bug #926
Wed, 25 Nov 2009 06:00:00 +0000 Sam Lantinga Add error messages for failure cases
Wed, 14 Jan 2009 04:25:32 +0000 Sam Lantinga indent
Mon, 12 Jan 2009 08:46:28 +0000 Sam Lantinga Fixed Visual C++ build
Sun, 11 Jan 2009 04:46:42 +0000 Ryan C. Gordon First shot at new audio resampling code.
Sat, 10 Jan 2009 18:32:24 +0000 Sam Lantinga Fixed Visual C++ release build for Visual C++ 2005
Sat, 20 Dec 2008 08:41:05 +0000 Sam Lantinga indent
Fri, 19 Dec 2008 09:15:59 +0000 Ryan C. Gordon More resampling fixes.
Fri, 19 Dec 2008 08:30:26 +0000 Ryan C. Gordon Allocate SDL_AudioCVT::coeff before using it.
Fri, 19 Dec 2008 06:43:41 +0000 Ryan C. Gordon Use SDL_zerop instead of SDL_memset.
Fri, 19 Dec 2008 06:01:03 +0000 Ryan C. Gordon Zero out SDL_AudioCVT struct before using it, to ensure it's all initialized.
Mon, 08 Dec 2008 00:27:32 +0000 Sam Lantinga Updated copyright date
Sun, 12 Oct 2008 16:21:36 +0000 Sam Lantinga Don't include <math.h> when HAVE_MATH_H isn't defined
Sat, 04 Oct 2008 06:46:59 +0000 Sam Lantinga Final merge of Google Summer of Code 2008 work...
Mon, 15 Sep 2008 07:34:36 +0000 Sam Lantinga Updated Visual C++ build
Mon, 01 Sep 2008 16:04:20 +0000 Sam Lantinga Fixed a bunch of compile warnings on Mac OS X
Tue, 26 Aug 2008 07:34:49 +0000 Sam Lantinga Fixed Visual Studio compilation problems
Mon, 25 Aug 2008 15:08:59 +0000 Sam Lantinga Final merge of Google Summer of Code 2008 work...
Tue, 12 Aug 2008 00:24:42 +0000 Aaron Wishnick General cleanup and fixed a buffer overrun bug. It may be necessary to normalize filter gain differently or something. gsoc2008_audio_resampling
Thu, 10 Jul 2008 07:02:18 +0000 Aaron Wishnick Made a very significant optimization to the FIR filter which I believe I can take a little further. Right now the FIR filter size is 768 and I get some free() bugs, so this is something I need to debug. gsoc2008_audio_resampling
Wed, 02 Jul 2008 08:04:50 +0000 Aaron Wishnick The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out. gsoc2008_audio_resampling
Wed, 02 Jul 2008 07:25:02 +0000 Aaron Wishnick Cleaned up some bugs, but the FIR filter is still distorting. gsoc2008_audio_resampling
Sun, 22 Jun 2008 00:36:35 +0000 Aaron Wishnick Fixed lots of bugs in FIR filtering. Fixed point code is closer to working, but there seems to be overflow in the FIR filter resulting in distortion. gsoc2008_audio_resampling
Thu, 19 Jun 2008 20:11:06 +0000 Aaron Wishnick IIR filtering now seems to work fine. Fixed point code also seems to be good. gsoc2008_audio_resampling
Wed, 18 Jun 2008 22:42:27 +0000 Aaron Wishnick Implemented a lot of fixed point code for the filters. The SDL_FixMpy functions currently don't work properly -- there are some issues with signed vs unsigned. gsoc2008_audio_resampling
Wed, 18 Jun 2008 18:55:50 +0000 Aaron Wishnick Began implementing IIR and FIR filters, and got zero stuffing and sample discarding working. gsoc2008_audio_resampling
Wed, 18 Jun 2008 04:51:10 +0000 Aaron Wishnick Added beginnings of resampling code. gsoc2008_audio_resampling
Tue, 19 Jun 2007 05:53:56 +0000 Sam Lantinga Fixes for compiling with Visual C++ 8.0 Express Edition
Wed, 29 Nov 2006 10:38:07 +0000 Ryan C. Gordon Apparently it's possible that MSVC will want to call a built-in function to
Tue, 17 Oct 2006 09:15:21 +0000 Ryan C. Gordon Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.