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annotate src/audio/SDL_audio_c.h @ 3021:f3dcf04412cf

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First shot at new audio resampling code.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 11 Jan 2009 04:46:42 +0000
parents 99210400e8b9
children f7b03b6838cb
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Functions and variables exported from SDL_audio.c for SDL_sysaudio.c */
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25
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26 /* Functions to get a list of "close" audio formats */
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27 extern SDL_AudioFormat SDL_FirstAudioFormat(SDL_AudioFormat format);
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28 extern SDL_AudioFormat SDL_NextAudioFormat(void);
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30 /* Function to calculate the size and silence for a SDL_AudioSpec */
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31 extern void SDL_CalculateAudioSpec(SDL_AudioSpec * spec);
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33 /* The actual mixing thread function */
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34 extern int SDLCALL SDL_RunAudio(void *audiop);
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35
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36 /* this is used internally to access some autogenerated code. */
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37 typedef struct
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38 {
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39 SDL_AudioFormat src_fmt;
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40 SDL_AudioFormat dst_fmt;
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41 SDL_AudioFilter filter;
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42 } SDL_AudioTypeFilters;
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43 extern const SDL_AudioTypeFilters sdl_audio_type_filters[];
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44
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45 /* this is used internally to access some autogenerated code. */
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46 typedef struct
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47 {
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48 SDL_AudioFormat fmt;
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49 int channels;
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50 int upsample;
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51 int multiple;
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52 SDL_AudioFilter filter;
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53 } SDL_AudioRateFilters;
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54 extern const SDL_AudioRateFilters sdl_audio_rate_filters[];
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55
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56 /* vi: set ts=4 sw=4 expandtab: */