EVOLUTION-MANAGER

Edit File: pcm_plugin.h

/** * \file include/pcm_plugin.h * \brief Common PCM plugin code * \author Abramo Bagnara <abramo@alsa-project.org> * \author Jaroslav Kysela <perex@perex.cz> * \date 2000-2001 * * Application interface library for the ALSA driver. * See the \ref pcm_plugins page for more details. * * \warning Using of contents of this header file might be dangerous * in the sense of compatibility reasons. The contents might be * freely changed in future. */ /* * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifndef __ALSA_PCM_PLUGIN_H #define __ALSA_PCM_PLUGIN_H /** * \defgroup PCM_Plugins PCM Plugins * \ingroup PCM * See the \ref pcm_plugins page for more details. * \{ */ #define SND_PCM_PLUGIN_RATE_MIN 4000 /**< minimal rate for the rate plugin */ #define SND_PCM_PLUGIN_RATE_MAX 192000 /**< maximal rate for the rate plugin */ /* ROUTE_FLOAT should be set to 0 for machines without FP unit - like iPAQ */ #ifdef HAVE_SOFT_FLOAT #define SND_PCM_PLUGIN_ROUTE_FLOAT 0 /**< use integers for route plugin */ #else #define SND_PCM_PLUGIN_ROUTE_FLOAT 1 /**< use floats for route plugin */ #endif #define SND_PCM_PLUGIN_ROUTE_RESOLUTION 16 /**< integer resolution for route plugin */ #if SND_PCM_PLUGIN_ROUTE_FLOAT /** route ttable entry type */ typedef float snd_pcm_route_ttable_entry_t; #define SND_PCM_PLUGIN_ROUTE_HALF 0.5 /**< half value */ #define SND_PCM_PLUGIN_ROUTE_FULL 1.0 /**< full value */ #else /** route ttable entry type */ typedef int snd_pcm_route_ttable_entry_t; #define SND_PCM_PLUGIN_ROUTE_HALF (SND_PCM_PLUGIN_ROUTE_RESOLUTION / 2) /**< half value */ #define SND_PCM_PLUGIN_ROUTE_FULL SND_PCM_PLUGIN_ROUTE_RESOLUTION /**< full value */ #endif /* * Hardware plugin */ int snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name, int card, int device, int subdevice, snd_pcm_stream_t stream, int mode, int mmap_emulation, int sync_ptr_ioctl); int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root ATTRIBUTE_UNUSED, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Copy plugin */ int snd_pcm_copy_open(snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave); int _snd_pcm_copy_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Linear conversion plugin */ int snd_pcm_linear_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave); int _snd_pcm_linear_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Linear<->Float conversion plugin */ int snd_pcm_lfloat_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave); int _snd_pcm_lfloat_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Linear<->mu-Law conversion plugin */ int snd_pcm_mulaw_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave); int _snd_pcm_mulaw_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Linear<->a-Law conversion plugin */ int snd_pcm_alaw_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave); int _snd_pcm_alaw_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Linear<->Ima-ADPCM conversion plugin */ int snd_pcm_adpcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave); int _snd_pcm_adpcm_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Route plugin for linear formats */ int snd_pcm_route_load_ttable(snd_config_t *tt, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_csize, unsigned int tt_ssize, unsigned int *tt_cused, unsigned int *tt_sused, int schannels); int snd_pcm_route_determine_ttable(snd_config_t *tt, unsigned int *tt_csize, unsigned int *tt_ssize); int snd_pcm_route_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, int schannels, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_ssize, unsigned int tt_cused, unsigned int tt_sused, snd_pcm_t *slave, int close_slave); int _snd_pcm_route_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Rate plugin for linear formats */ int snd_pcm_rate_open(snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, unsigned int srate, const snd_config_t *converter, snd_pcm_t *slave, int close_slave); int _snd_pcm_rate_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Hooks plugin */ int snd_pcm_hooks_open(snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave); int _snd_pcm_hooks_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * LADSPA plugin */ int snd_pcm_ladspa_open(snd_pcm_t **pcmp, const char *name, const char *ladspa_path, unsigned int channels, snd_config_t *ladspa_pplugins, snd_config_t *ladspa_cplugins, snd_pcm_t *slave, int close_slave); int _snd_pcm_ladspa_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /* * Jack plugin */ int snd_pcm_jack_open(snd_pcm_t **pcmp, const char *name, snd_config_t *playback_conf, snd_config_t *capture_conf, snd_pcm_stream_t stream, int mode); int _snd_pcm_jack_open(snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode); /** \} */ #endif /* __ALSA_PCM_PLUGIN_H */