annotate src/audio/alsa/SDL_alsa_audio.h @ 956:4263beff9e38

Date: Mon, 30 Aug 2004 18:20:25 +0200 From: Joost Baas Subject: why call arts artsc? I, and a few other people at the mplayer-docs-mailinglist were wondering why you decided to call arts artsc. I understand usually users have nothing to do with libsdl, just developers, but because you can choose the audio-driver being used by mplayer, one of which is sdl, and you can also choose the sdl subdriver, it is necessary to have a well-known or logical name. artsc is not the logical choice, and it's very hard to look up the right name if you don't know what you're looking for.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 17 Sep 2004 13:25:06 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifndef _ALSA_PCM_audio_h
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24 #define _ALSA_PCM_audio_h
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25
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26 #include "SDL_sysaudio.h"
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27 #define ALSA_PCM_OLD_HW_PARAMS_API
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28 #define ALSA_PCM_OLD_SW_PARAMS_API
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29 #include <alsa/asoundlib.h>
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31 /* Hidden "this" pointer for the video functions */
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32 #define _THIS SDL_AudioDevice *this
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33
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34 struct SDL_PrivateAudioData {
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35 /* The audio device handle */
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36 snd_pcm_t *pcm_handle;
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38 /* The parent process id, to detect when application quits */
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39 pid_t parent;
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40
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41 /* Raw mixing buffer */
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42 Uint8 *mixbuf;
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43 int mixlen;
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44 };
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45
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46 /* Old variable names */
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47 #define pcm_handle (this->hidden->pcm_handle)
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48 #define parent (this->hidden->parent)
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49 #define mixbuf (this->hidden->mixbuf)
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50 #define mixlen (this->hidden->mixlen)
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52 #endif /* _ALSA_PCM_audio_h */