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1 /**
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2 * \file include/pcm_external.h
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3 * \brief External PCM plugin SDK
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4 * \author Takashi Iwai <tiwai@suse.de>
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5 * \date 2005
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6 *
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7 * Extern PCM plugin SDK.
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8 */
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9
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10 /*
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11 * This library is free software; you can redistribute it and/or modify
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12 * it under the terms of the GNU Lesser General Public License as
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13 * published by the Free Software Foundation; either version 2.1 of
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14 * the License, or (at your option) any later version.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU Lesser General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU Lesser General Public
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22 * License along with this library; if not, write to the Free Software
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23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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24 *
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25 */
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26 #ifndef __ALSA_PCM_EXTERNAL_H
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27 #define __ALSA_PCM_EXTERNAL_H
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28
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29 #include "pcm.h"
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30
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31 #ifdef __cplusplus
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32 extern "C" {
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33 #endif
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34
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35 /**
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36 * \defgroup Plugin_SDK External PCM plugin SDK
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37 * \{
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38 */
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39
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40 /**
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41 * Define the object entry for external PCM plugins
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42 */
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43 #define SND_PCM_PLUGIN_ENTRY(name) _snd_pcm_##name##_open
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44
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45 /**
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46 * Define the symbols of the given plugin with versions
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47 */
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48 #define SND_PCM_PLUGIN_SYMBOL(name) SND_DLSYM_BUILD_VERSION(SND_PCM_PLUGIN_ENTRY(name), SND_PCM_DLSYM_VERSION);
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49
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50 /**
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51 * Define the plugin
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52 */
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53 #define SND_PCM_PLUGIN_DEFINE_FUNC(plugin) \
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54 int SND_PCM_PLUGIN_ENTRY(plugin) (snd_pcm_t **pcmp, const char *name,\
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55 snd_config_t *root, snd_config_t *conf, \
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56 snd_pcm_stream_t stream, int mode)
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57
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58 #include "pcm_ioplug.h"
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59 #include "pcm_extplug.h"
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60
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61 int snd_pcm_parse_control_id(snd_config_t *conf, snd_ctl_elem_id_t *ctl_id, int *cardp,
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62 int *cchannelsp, int *hwctlp);
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63
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64 /** \} */
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65
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66 #ifdef __cplusplus
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67 }
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68 #endif
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69
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70 #endif /* __ALSA_PCM_EXTERNAL_H */
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