mirror of
https://github.com/alsa-project/alsa-lib.git
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8720faaccb
Cleanups in snd_pcm_close(). Added initial code for dmix plugin: - only skeleton, but all major problems should be solved
782 lines
39 KiB
C
782 lines
39 KiB
C
/*
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* PCM Interface - local header file
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* Copyright (c) 2000 by Jaroslav Kysela <perex@suse.cz>
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* Abramo Bagnara <abramo@alsa-project.org>
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*
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <sys/uio.h>
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#define _snd_mask sndrv_mask
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#define _snd_pcm_access_mask _snd_mask
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#define _snd_pcm_format_mask _snd_mask
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#define _snd_pcm_subformat_mask _snd_mask
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#include "local.h"
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#define SND_INTERVAL_INLINE
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#include "interval.h"
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#define SND_MASK_INLINE
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#include "mask.h"
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typedef enum sndrv_pcm_hw_param snd_pcm_hw_param_t;
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#define SND_PCM_HW_PARAM_ACCESS SNDRV_PCM_HW_PARAM_ACCESS
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#define SND_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_FIRST_MASK
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#define SND_PCM_HW_PARAM_FORMAT SNDRV_PCM_HW_PARAM_FORMAT
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#define SND_PCM_HW_PARAM_SUBFORMAT SNDRV_PCM_HW_PARAM_SUBFORMAT
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#define SND_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_LAST_MASK
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#define SND_PCM_HW_PARAM_SAMPLE_BITS SNDRV_PCM_HW_PARAM_SAMPLE_BITS
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#define SND_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_FIRST_INTERVAL
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#define SND_PCM_HW_PARAM_FRAME_BITS SNDRV_PCM_HW_PARAM_FRAME_BITS
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#define SND_PCM_HW_PARAM_CHANNELS SNDRV_PCM_HW_PARAM_CHANNELS
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#define SND_PCM_HW_PARAM_RATE SNDRV_PCM_HW_PARAM_RATE
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#define SND_PCM_HW_PARAM_PERIOD_TIME SNDRV_PCM_HW_PARAM_PERIOD_TIME
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#define SND_PCM_HW_PARAM_PERIOD_SIZE SNDRV_PCM_HW_PARAM_PERIOD_SIZE
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#define SND_PCM_HW_PARAM_PERIOD_BYTES SNDRV_PCM_HW_PARAM_PERIOD_BYTES
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#define SND_PCM_HW_PARAM_PERIODS SNDRV_PCM_HW_PARAM_PERIODS
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#define SND_PCM_HW_PARAM_BUFFER_TIME SNDRV_PCM_HW_PARAM_BUFFER_TIME
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#define SND_PCM_HW_PARAM_BUFFER_SIZE SNDRV_PCM_HW_PARAM_BUFFER_SIZE
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#define SND_PCM_HW_PARAM_BUFFER_BYTES SNDRV_PCM_HW_PARAM_BUFFER_BYTES
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#define SND_PCM_HW_PARAM_TICK_TIME SNDRV_PCM_HW_PARAM_TICK_TIME
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#define SND_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_LAST_INTERVAL
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#define SND_PCM_HW_PARAMS_RUNTIME SNDRV_PCM_HW_PARAMS_RUNTIME
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#define SND_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_LAST_MASK
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#define SND_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_FIRST_MASK
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#define SND_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_LAST_INTERVAL
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#define SND_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_FIRST_INTERVAL
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/** device accepts mmaped access */
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#define SND_PCM_INFO_MMAP SNDRV_PCM_INFO_MMAP
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/** device accepts mmaped access with sample resolution */
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#define SND_PCM_INFO_MMAP_VALID SNDRV_PCM_INFO_MMAP_VALID
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/** device is doing double buffering */
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#define SND_PCM_INFO_DOUBLE SNDRV_PCM_INFO_DOUBLE
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/** device transfers samples in batch */
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#define SND_PCM_INFO_BATCH SNDRV_PCM_INFO_BATCH
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/** device accepts interleaved samples */
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#define SND_PCM_INFO_INTERLEAVED SNDRV_PCM_INFO_INTERLEAVED
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/** device accepts non-interleaved samples */
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#define SND_PCM_INFO_NONINTERLEAVED SNDRV_PCM_INFO_NONINTERLEAVED
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/** device accepts complex sample organization */
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#define SND_PCM_INFO_COMPLEX SNDRV_PCM_INFO_COMPLEX
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/** device is capable block transfers */
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#define SND_PCM_INFO_BLOCK_TRANSFER SNDRV_PCM_INFO_BLOCK_TRANSFER
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/** device can detect DAC/ADC overrange */
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#define SND_PCM_INFO_OVERRANGE SNDRV_PCM_INFO_OVERRANGE
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/** device is capable to pause */
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#define SND_PCM_INFO_PAUSE SNDRV_PCM_INFO_PAUSE
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/** device can do only half duplex */
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#define SND_PCM_INFO_HALF_DUPLEX SNDRV_PCM_INFO_HALF_DUPLEX
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/** device can do only joint duplex (same parameters) */
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#define SND_PCM_INFO_JOINT_DUPLEX SNDRV_PCM_INFO_JOINT_DUPLEX
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/** device can do a kind of synchronized start */
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#define SND_PCM_INFO_SYNC_START SNDRV_PCM_INFO_SYNC_START
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typedef struct _snd_pcm_rbptr {
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snd_pcm_t *master;
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volatile snd_pcm_uframes_t *ptr;
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int fd;
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off_t offset;
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int link_dst_count;
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snd_pcm_t **link_dst;
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void *private_data;
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void (*changed)(snd_pcm_t *pcm, snd_pcm_t *src);
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} snd_pcm_rbptr_t;
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typedef struct _snd_pcm_channel_info {
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unsigned int channel;
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void *addr; /* base address of channel samples */
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unsigned int first; /* offset to first sample in bits */
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unsigned int step; /* samples distance in bits */
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enum { SND_PCM_AREA_SHM, SND_PCM_AREA_MMAP } type;
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union {
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struct {
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int shmid;
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int remove;
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} shm;
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struct {
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int fd;
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off_t offset;
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} mmap;
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} u;
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char reserved[64];
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} snd_pcm_channel_info_t;
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typedef struct {
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int (*close)(snd_pcm_t *pcm);
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int (*nonblock)(snd_pcm_t *pcm, int nonblock);
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int (*async)(snd_pcm_t *pcm, int sig, pid_t pid);
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int (*info)(snd_pcm_t *pcm, snd_pcm_info_t *info);
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int (*hw_refine)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
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int (*hw_params)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
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int (*hw_free)(snd_pcm_t *pcm);
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int (*sw_params)(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
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int (*channel_info)(snd_pcm_t *pcm, snd_pcm_channel_info_t *info);
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void (*dump)(snd_pcm_t *pcm, snd_output_t *out);
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int (*mmap)(snd_pcm_t *pcm);
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int (*munmap)(snd_pcm_t *pcm);
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} snd_pcm_ops_t;
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typedef struct {
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int (*status)(snd_pcm_t *pcm, snd_pcm_status_t *status);
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int (*prepare)(snd_pcm_t *pcm);
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int (*reset)(snd_pcm_t *pcm);
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int (*start)(snd_pcm_t *pcm);
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int (*drop)(snd_pcm_t *pcm);
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int (*drain)(snd_pcm_t *pcm);
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int (*pause)(snd_pcm_t *pcm, int enable);
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snd_pcm_state_t (*state)(snd_pcm_t *pcm);
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int (*hwsync)(snd_pcm_t *pcm);
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int (*delay)(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
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int (*resume)(snd_pcm_t *pcm);
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snd_pcm_sframes_t (*rewind)(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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snd_pcm_sframes_t (*writei)(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t (*writen)(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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snd_pcm_sframes_t (*readi)(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t (*readn)(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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snd_pcm_sframes_t (*avail_update)(snd_pcm_t *pcm);
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snd_pcm_sframes_t (*mmap_commit)(snd_pcm_t *pcm, snd_pcm_uframes_t offset, snd_pcm_uframes_t size);
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} snd_pcm_fast_ops_t;
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struct _snd_pcm {
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void *dl_handle;
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char *name;
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snd_pcm_type_t type;
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snd_pcm_stream_t stream;
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int mode;
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int poll_fd;
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int setup;
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snd_pcm_access_t access; /* access mode */
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snd_pcm_format_t format; /* SND_PCM_FORMAT_* */
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snd_pcm_subformat_t subformat; /* subformat */
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unsigned int channels; /* channels */
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unsigned int rate; /* rate in Hz */
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snd_pcm_uframes_t period_size;
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unsigned int period_time; /* period duration */
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snd_interval_t periods;
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unsigned int tick_time;
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snd_pcm_tstamp_t tstamp_mode; /* timestamp mode */
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unsigned int period_step;
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unsigned int sleep_min;
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snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
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snd_pcm_uframes_t start_threshold;
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snd_pcm_uframes_t stop_threshold;
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snd_pcm_uframes_t silence_threshold; /* Silence filling happens when
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noise is nearest than this */
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snd_pcm_uframes_t silence_size; /* Silence filling size */
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snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */
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snd_pcm_uframes_t boundary; /* pointers wrap point */
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unsigned int info; /* Info for returned setup */
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unsigned int msbits; /* used most significant bits */
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unsigned int rate_num; /* rate numerator */
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unsigned int rate_den; /* rate denominator */
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snd_pcm_uframes_t fifo_size; /* chip FIFO size in frames */
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snd_pcm_uframes_t buffer_size;
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snd_interval_t buffer_time;
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unsigned int sample_bits;
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unsigned int frame_bits;
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snd_pcm_rbptr_t appl;
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snd_pcm_rbptr_t hw;
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snd_pcm_uframes_t min_align;
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int mmap_rw;
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snd_pcm_channel_info_t *mmap_channels;
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snd_pcm_channel_area_t *running_areas;
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snd_pcm_channel_area_t *stopped_areas;
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snd_pcm_ops_t *ops;
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snd_pcm_fast_ops_t *fast_ops;
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snd_pcm_t *op_arg;
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snd_pcm_t *fast_op_arg;
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void *private_data;
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struct list_head async_handlers;
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};
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/* FIXME */
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#define _snd_pcm_link_descriptor _snd_pcm_poll_descriptor
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#define _snd_pcm_async_descriptor _snd_pcm_poll_descriptor
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int snd_pcm_new(snd_pcm_t **pcmp, snd_pcm_type_t type, const char *name,
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snd_pcm_stream_t stream, int mode);
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int snd_pcm_free(snd_pcm_t *pcm);
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void snd_pcm_areas_from_buf(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void *buf);
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void snd_pcm_areas_from_bufs(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void **bufs);
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int snd_pcm_async(snd_pcm_t *pcm, int sig, pid_t pid);
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int snd_pcm_mmap(snd_pcm_t *pcm);
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int snd_pcm_munmap(snd_pcm_t *pcm);
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int snd_pcm_mmap_ready(snd_pcm_t *pcm);
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void snd_pcm_set_hw_ptr(snd_pcm_t *pcm, volatile snd_pcm_uframes_t *hw_ptr, int fd, off_t offset);
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void snd_pcm_set_appl_ptr(snd_pcm_t *pcm, volatile snd_pcm_uframes_t *appl_ptr, int fd, off_t offset);
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void snd_pcm_link_hw_ptr(snd_pcm_t *pcm, snd_pcm_t *slave);
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void snd_pcm_link_appl_ptr(snd_pcm_t *pcm, snd_pcm_t *slave);
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void snd_pcm_unlink_hw_ptr(snd_pcm_t *pcm, snd_pcm_t *slave);
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void snd_pcm_unlink_appl_ptr(snd_pcm_t *pcm, snd_pcm_t *slave);
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snd_pcm_sframes_t snd_pcm_mmap_appl_ptr(snd_pcm_t *pcm, off_t offset);
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void snd_pcm_mmap_appl_backward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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void snd_pcm_mmap_appl_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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void snd_pcm_mmap_hw_backward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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void snd_pcm_mmap_hw_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
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snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
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typedef snd_pcm_sframes_t (*snd_pcm_xfer_areas_func_t)(snd_pcm_t *pcm,
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const snd_pcm_channel_area_t *areas,
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snd_pcm_uframes_t offset,
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snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_read_areas(snd_pcm_t *pcm, const snd_pcm_channel_area_t *areas,
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snd_pcm_uframes_t offset, snd_pcm_uframes_t size,
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snd_pcm_xfer_areas_func_t func);
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snd_pcm_sframes_t snd_pcm_write_areas(snd_pcm_t *pcm, const snd_pcm_channel_area_t *areas,
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snd_pcm_uframes_t offset, snd_pcm_uframes_t size,
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snd_pcm_xfer_areas_func_t func);
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snd_pcm_sframes_t snd_pcm_read_mmap(snd_pcm_t *pcm, snd_pcm_uframes_t size);
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snd_pcm_sframes_t snd_pcm_write_mmap(snd_pcm_t *pcm, snd_pcm_uframes_t size);
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int snd_pcm_channel_info(snd_pcm_t *pcm, snd_pcm_channel_info_t *info);
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int snd_pcm_channel_info_shm(snd_pcm_t *pcm, snd_pcm_channel_info_t *info, int shmid);
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int _snd_pcm_poll_descriptor(snd_pcm_t *pcm);
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static inline snd_pcm_uframes_t snd_pcm_mmap_playback_avail(snd_pcm_t *pcm)
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{
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snd_pcm_sframes_t avail;
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avail = *pcm->hw.ptr + pcm->buffer_size - *pcm->appl.ptr;
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if (avail < 0)
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avail += pcm->boundary;
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else if ((snd_pcm_uframes_t) avail >= pcm->boundary)
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avail -= pcm->boundary;
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return avail;
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_capture_avail(snd_pcm_t *pcm)
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{
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snd_pcm_sframes_t avail;
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avail = *pcm->hw.ptr - *pcm->appl.ptr;
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if (avail < 0)
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avail += pcm->boundary;
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return avail;
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_avail(snd_pcm_t *pcm)
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{
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if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
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return snd_pcm_mmap_playback_avail(pcm);
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else
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return snd_pcm_mmap_capture_avail(pcm);
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}
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static inline snd_pcm_sframes_t snd_pcm_mmap_playback_hw_avail(snd_pcm_t *pcm)
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{
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return pcm->buffer_size - snd_pcm_mmap_playback_avail(pcm);
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}
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static inline snd_pcm_sframes_t snd_pcm_mmap_capture_hw_avail(snd_pcm_t *pcm)
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{
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return pcm->buffer_size - snd_pcm_mmap_capture_avail(pcm);
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}
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static inline snd_pcm_sframes_t snd_pcm_mmap_hw_avail(snd_pcm_t *pcm)
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{
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snd_pcm_sframes_t avail;
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avail = *pcm->hw.ptr - *pcm->appl.ptr;
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if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
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avail += pcm->buffer_size;
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if (avail < 0)
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avail += pcm->boundary;
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return pcm->buffer_size - avail;
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}
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static inline const snd_pcm_channel_area_t *snd_pcm_mmap_areas(snd_pcm_t *pcm)
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{
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if (pcm->stopped_areas &&
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snd_pcm_state(pcm) != SND_PCM_STATE_RUNNING)
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return pcm->stopped_areas;
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return pcm->running_areas;
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_offset(snd_pcm_t *pcm)
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{
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assert(pcm);
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return *pcm->appl.ptr % pcm->buffer_size;
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_hw_offset(snd_pcm_t *pcm)
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{
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assert(pcm);
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return *pcm->hw.ptr % pcm->buffer_size;
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_playback_delay(snd_pcm_t *pcm)
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{
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return snd_pcm_mmap_playback_hw_avail(pcm);
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}
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static inline snd_pcm_uframes_t snd_pcm_mmap_capture_delay(snd_pcm_t *pcm)
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{
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return snd_pcm_mmap_capture_hw_avail(pcm);
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}
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static inline snd_pcm_sframes_t snd_pcm_mmap_delay(snd_pcm_t *pcm)
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{
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if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
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return snd_pcm_mmap_playback_delay(pcm);
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else
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return snd_pcm_mmap_capture_delay(pcm);
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}
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static inline void *snd_pcm_channel_area_addr(const snd_pcm_channel_area_t *area, snd_pcm_uframes_t offset)
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{
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unsigned int bitofs = area->first + area->step * offset;
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assert(bitofs % 8 == 0);
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return (char *) area->addr + bitofs / 8;
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}
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static inline unsigned int snd_pcm_channel_area_step(const snd_pcm_channel_area_t *area)
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{
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assert(area->step % 8 == 0);
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return area->step / 8;
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}
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static inline snd_pcm_sframes_t _snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size)
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{
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return pcm->fast_ops->writei(pcm->fast_op_arg, buffer, size);
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}
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static inline snd_pcm_sframes_t _snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
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{
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return pcm->fast_ops->writen(pcm->fast_op_arg, bufs, size);
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}
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static inline snd_pcm_sframes_t _snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size)
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{
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return pcm->fast_ops->readi(pcm->fast_op_arg, buffer, size);
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}
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static inline snd_pcm_sframes_t _snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
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{
|
|
return pcm->fast_ops->readn(pcm->fast_op_arg, bufs, size);
|
|
}
|
|
|
|
static inline int muldiv(int a, int b, int c, int *r)
|
|
{
|
|
int64_t n = (int64_t)a * b;
|
|
int64_t v = n / c;
|
|
if (v > INT_MAX) {
|
|
*r = 0;
|
|
return INT_MAX;
|
|
}
|
|
if (v < INT_MIN) {
|
|
*r = 0;
|
|
return INT_MIN;
|
|
}
|
|
*r = n % c;
|
|
return v;
|
|
}
|
|
|
|
static inline int muldiv_down(int a, int b, int c)
|
|
{
|
|
int64_t v = (int64_t)a * b / c;
|
|
if (v > INT_MAX) {
|
|
return INT_MAX;
|
|
}
|
|
if (v < INT_MIN) {
|
|
return INT_MIN;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static inline int muldiv_near(int a, int b, int c)
|
|
{
|
|
int r;
|
|
int n = muldiv(a, b, c, &r);
|
|
if (r >= (c + 1) / 2)
|
|
n++;
|
|
return n;
|
|
}
|
|
|
|
int snd_pcm_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
|
|
int _snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
|
|
int snd_pcm_hw_refine_soft(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
|
|
int snd_pcm_hw_refine_slave(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
int (*cprepare)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params),
|
|
int (*cchange)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_params_t *sparams),
|
|
int (*sprepare)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params),
|
|
int (*schange)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_params_t *sparams),
|
|
int (*srefine)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *sparams));
|
|
int snd_pcm_hw_params_slave(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
int (*cchange)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_params_t *sparams),
|
|
int (*sprepare)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params),
|
|
int (*schange)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_params_t *sparams),
|
|
int (*sparams)(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *sparams));
|
|
|
|
|
|
void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params);
|
|
void _snd_pcm_hw_param_set_empty(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
int _snd_pcm_hw_param_set_interval(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_interval_t *val);
|
|
int _snd_pcm_hw_param_set_mask(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, const snd_mask_t *mask);
|
|
int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
int _snd_pcm_hw_param_set(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int val, int dir);
|
|
static inline int _snd_pcm_hw_params_set_format(snd_pcm_hw_params_t *params,
|
|
snd_pcm_format_t val)
|
|
{
|
|
return _snd_pcm_hw_param_set(params, SND_PCM_HW_PARAM_FORMAT,
|
|
(unsigned long) val, 0);
|
|
}
|
|
|
|
static inline int _snd_pcm_hw_params_set_subformat(snd_pcm_hw_params_t *params,
|
|
snd_pcm_subformat_t val)
|
|
{
|
|
return _snd_pcm_hw_param_set(params, SND_PCM_HW_PARAM_SUBFORMAT,
|
|
(unsigned long) val, 0);
|
|
}
|
|
|
|
int _snd_pcm_hw_param_set_min(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int val, int dir);
|
|
int _snd_pcm_hw_param_set_max(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int val, int dir);
|
|
int _snd_pcm_hw_param_set_minmax(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
unsigned int min, int mindir,
|
|
unsigned int max, int maxdir);
|
|
int _snd_pcm_hw_param_refine(snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_pcm_hw_params_t *src);
|
|
int _snd_pcm_hw_params_refine(snd_pcm_hw_params_t *params,
|
|
unsigned int vars,
|
|
const snd_pcm_hw_params_t *src);
|
|
void snd_pcm_hw_param_refine_near(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_pcm_hw_params_t *src);
|
|
void snd_pcm_hw_param_refine_multiple(snd_pcm_t *pcm,
|
|
snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_pcm_hw_params_t *src);
|
|
int snd_pcm_hw_param_empty(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
int snd_pcm_hw_param_always_eq(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_pcm_hw_params_t *params1);
|
|
int snd_pcm_hw_param_never_eq(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
const snd_pcm_hw_params_t *params1);
|
|
const snd_mask_t *snd_pcm_hw_param_get_mask(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
const snd_interval_t *snd_pcm_hw_param_get_interval(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
|
|
int snd_pcm_hw_param_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var);
|
|
int snd_pcm_hw_param_set_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var);
|
|
int snd_pcm_hw_param_set_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int *rval, int *dir);
|
|
int snd_pcm_hw_param_set_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int *rval, int *dir);
|
|
int snd_pcm_hw_param_set_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_param_set_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var,
|
|
unsigned int *val, int *dir);
|
|
int snd_pcm_hw_param_set_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_param_set_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var,
|
|
unsigned int *min, int *mindir,
|
|
unsigned int *max, int *maxdir);
|
|
int snd_pcm_hw_param_set(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var, unsigned int val, int dir);
|
|
int snd_pcm_hw_param_set_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
|
|
snd_set_mode_t mode,
|
|
snd_pcm_hw_param_t var, const snd_mask_t *mask);
|
|
int snd_pcm_hw_param_get(const snd_pcm_hw_params_t *params, snd_pcm_hw_param_t var,
|
|
unsigned int *val, int *dir);
|
|
int snd_pcm_hw_param_get_min(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
unsigned int *val, int *dir);
|
|
int snd_pcm_hw_param_get_max(const snd_pcm_hw_params_t *params,
|
|
snd_pcm_hw_param_t var,
|
|
unsigned int *val, int *dir);
|
|
|
|
#ifdef INTERNAL
|
|
int INTERNAL(snd_pcm_hw_params_get_access)(const snd_pcm_hw_params_t *params, snd_pcm_access_t *access);
|
|
int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t access);
|
|
int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t access);
|
|
int INTERNAL(snd_pcm_hw_params_set_access_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *access);
|
|
int INTERNAL(snd_pcm_hw_params_set_access_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *access);
|
|
int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
|
|
int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_format)(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val);
|
|
int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
|
|
int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
|
|
int INTERNAL(snd_pcm_hw_params_set_format_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
|
|
int INTERNAL(snd_pcm_hw_params_set_format_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
|
|
int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
|
|
void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_subformat)(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
|
|
int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
|
|
int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
|
|
int INTERNAL(snd_pcm_hw_params_set_subformat_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
|
|
int INTERNAL(snd_pcm_hw_params_set_subformat_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
|
|
int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
|
|
void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_channels)(const snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int INTERNAL(snd_pcm_hw_params_get_channels_min)(const snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int INTERNAL(snd_pcm_hw_params_get_channels_max)(const snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
|
|
int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
|
|
int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max);
|
|
int INTERNAL(snd_pcm_hw_params_set_channels_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int INTERNAL(snd_pcm_hw_params_set_channels_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
|
|
int INTERNAL(snd_pcm_hw_params_set_channels_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_rate)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_rate_min)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_rate_max)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_rate_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
|
|
int INTERNAL(snd_pcm_hw_params_set_rate_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_rate_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_rate_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_period_time)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_period_time_min)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_period_time_max)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_period_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_time_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_time_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_time_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_period_size)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_period_size_min)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_period_size_max)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
|
|
int snd_pcm_hw_params_test_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir);
|
|
int snd_pcm_hw_params_set_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir);
|
|
int snd_pcm_hw_params_set_period_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
|
|
int snd_pcm_hw_params_set_period_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
|
|
int snd_pcm_hw_params_set_period_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, int *mindir, snd_pcm_uframes_t *max, int *maxdir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_size_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_size_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_period_size_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
|
|
int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_periods)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_periods_min)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_periods_max)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_periods_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
|
|
int INTERNAL(snd_pcm_hw_params_set_periods_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_periods_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_set_periods_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
|
|
|
|
int INTERNAL(snd_pcm_hw_params_get_buffer_time)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_buffer_time_min)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int INTERNAL(snd_pcm_hw_params_get_buffer_time_max)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
|
|
int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
|
|
int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_hw_params_set_buffer_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
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int INTERNAL(snd_pcm_hw_params_set_buffer_time_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_set_buffer_time_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_set_buffer_time_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_get_buffer_size)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int INTERNAL(snd_pcm_hw_params_get_buffer_size_min)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int INTERNAL(snd_pcm_hw_params_get_buffer_size_max)(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
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int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
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int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_hw_params_set_buffer_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, snd_pcm_uframes_t *max);
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int INTERNAL(snd_pcm_hw_params_set_buffer_size_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int INTERNAL(snd_pcm_hw_params_set_buffer_size_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int INTERNAL(snd_pcm_hw_params_set_buffer_size_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
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int INTERNAL(snd_pcm_hw_params_get_tick_time)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_get_tick_time_min)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_get_tick_time_max)(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
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int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
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int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_hw_params_set_tick_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
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int INTERNAL(snd_pcm_hw_params_set_tick_time_near)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_set_tick_time_first)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int INTERNAL(snd_pcm_hw_params_set_tick_time_last)(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
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int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val);
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int INTERNAL(snd_pcm_sw_params_get_tstamp_mode)(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val);
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int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val);
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int INTERNAL(snd_pcm_sw_params_get_sleep_min)(const snd_pcm_sw_params_t *params, unsigned int *val);
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int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_avail_min)(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_xfer_align)(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_start_threshold)(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val);
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int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_stop_threshold)(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_silence_threshold)(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
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int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
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int INTERNAL(snd_pcm_sw_params_get_silence_size)(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
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#endif /* INTERNAL */
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const char *snd_pcm_hw_param_name(snd_pcm_hw_param_t param);
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void snd_pcm_hw_param_dump(const snd_pcm_hw_params_t *params,
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snd_pcm_hw_param_t var, snd_output_t *out);
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#if 0
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int snd_pcm_hw_strategy_simple_near(snd_pcm_hw_strategy_t *strategy, int order,
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snd_pcm_hw_param_t var,
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unsigned int best,
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unsigned int mul);
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int snd_pcm_hw_strategy_simple_choices(snd_pcm_hw_strategy_t *strategy, int order,
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snd_pcm_hw_param_t var,
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unsigned int count,
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snd_pcm_hw_strategy_simple_choices_list_t *choices);
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#endif
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#define SCONF_MANDATORY 1
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#define SCONF_UNCHANGED 2
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int snd_pcm_slave_conf(snd_config_t *root, snd_config_t *conf,
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snd_config_t **pcm_conf, unsigned int count, ...);
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int snd_pcm_open_slave(snd_pcm_t **pcmp, snd_config_t *root,
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snd_config_t *conf, snd_pcm_stream_t stream,
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int mode);
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int snd_pcm_conf_generic_id(const char *id);
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int snd_pcm_hw_open_fd(snd_pcm_t **pcmp, const char *name, int fd, int mmap_emulation);
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#define SND_PCM_HW_PARBIT_ACCESS (1U << SND_PCM_HW_PARAM_ACCESS)
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#define SND_PCM_HW_PARBIT_FORMAT (1U << SND_PCM_HW_PARAM_FORMAT)
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#define SND_PCM_HW_PARBIT_SUBFORMAT (1U << SND_PCM_HW_PARAM_SUBFORMAT)
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#define SND_PCM_HW_PARBIT_CHANNELS (1U << SND_PCM_HW_PARAM_CHANNELS)
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#define SND_PCM_HW_PARBIT_RATE (1U << SND_PCM_HW_PARAM_RATE)
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#define SND_PCM_HW_PARBIT_PERIOD_TIME (1U << SND_PCM_HW_PARAM_PERIOD_TIME)
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#define SND_PCM_HW_PARBIT_PERIOD_SIZE (1U << SND_PCM_HW_PARAM_PERIOD_SIZE)
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#define SND_PCM_HW_PARBIT_PERIODS (1U << SND_PCM_HW_PARAM_PERIODS)
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#define SND_PCM_HW_PARBIT_BUFFER_TIME (1U << SND_PCM_HW_PARAM_BUFFER_TIME)
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#define SND_PCM_HW_PARBIT_BUFFER_SIZE (1U << SND_PCM_HW_PARAM_BUFFER_SIZE)
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#define SND_PCM_HW_PARBIT_SAMPLE_BITS (1U << SND_PCM_HW_PARAM_SAMPLE_BITS)
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#define SND_PCM_HW_PARBIT_FRAME_BITS (1U << SND_PCM_HW_PARAM_FRAME_BITS)
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#define SND_PCM_HW_PARBIT_PERIOD_BYTES (1U << SND_PCM_HW_PARAM_PERIOD_BYTES)
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#define SND_PCM_HW_PARBIT_BUFFER_BYTES (1U << SND_PCM_HW_PARAM_BUFFER_BYTES)
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#define SND_PCM_HW_PARBIT_TICK_TIME (1U << SND_PCM_HW_PARAM_TICK_TIME)
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#define SND_PCM_ACCBIT_MMAP { ((1U << SND_PCM_ACCESS_MMAP_INTERLEAVED) | \
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(1U << SND_PCM_ACCESS_MMAP_NONINTERLEAVED) | \
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(1U << SND_PCM_ACCESS_MMAP_COMPLEX)) }
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#define SND_PCM_ACCBIT_MMAPI { (1U << SND_PCM_ACCESS_MMAP_INTERLEAVED) }
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#define SND_PCM_ACCBIT_MMAPN { (1U << SND_PCM_ACCESS_MMAP_NONINTERLEAVED) }
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#define SND_PCM_ACCBIT_MMAPC { (1U << SND_PCM_ACCESS_MMAP_COMPLEX) }
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#define SND_PCM_ACCBIT_SHM { ((1U << SND_PCM_ACCESS_MMAP_INTERLEAVED) | \
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(1U << SND_PCM_ACCESS_RW_INTERLEAVED) | \
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(1U << SND_PCM_ACCESS_MMAP_NONINTERLEAVED) | \
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(1U << SND_PCM_ACCESS_RW_NONINTERLEAVED)) }
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#define SND_PCM_ACCBIT_SHMI { ((1U << SND_PCM_ACCESS_MMAP_INTERLEAVED) | \
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(1U << SND_PCM_ACCESS_RW_INTERLEAVED)) }
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#define SND_PCM_ACCBIT_SHMN { ((1U << SND_PCM_ACCESS_MMAP_NONINTERLEAVED) | \
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(1U << SND_PCM_ACCESS_RW_NONINTERLEAVED)) }
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#define SND_PCM_FMTBIT_LINEAR \
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{ ((1U << SND_PCM_FORMAT_S8) | \
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(1U << SND_PCM_FORMAT_U8) | \
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(1U << SND_PCM_FORMAT_S16_LE) | \
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(1U << SND_PCM_FORMAT_S16_BE) | \
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(1U << SND_PCM_FORMAT_U16_LE) | \
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(1U << SND_PCM_FORMAT_U16_BE) | \
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(1U << SND_PCM_FORMAT_S24_LE) | \
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(1U << SND_PCM_FORMAT_S24_BE) | \
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(1U << SND_PCM_FORMAT_U24_LE) | \
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(1U << SND_PCM_FORMAT_U24_BE) | \
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(1U << SND_PCM_FORMAT_S32_LE) | \
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(1U << SND_PCM_FORMAT_S32_BE) | \
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(1U << SND_PCM_FORMAT_U32_LE) | \
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(1U << SND_PCM_FORMAT_U32_BE)), \
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((1U << (SND_PCM_FORMAT_S24_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_U24_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_S24_3BE - 32)) | \
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(1U << (SND_PCM_FORMAT_U24_3BE - 32)) | \
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(1U << (SND_PCM_FORMAT_S20_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_U20_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_S20_3BE - 32)) | \
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(1U << (SND_PCM_FORMAT_U20_3BE - 32)) | \
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(1U << (SND_PCM_FORMAT_S18_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_U18_3LE - 32)) | \
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(1U << (SND_PCM_FORMAT_S18_3BE - 32)) | \
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(1U << (SND_PCM_FORMAT_U18_3BE - 32))) }
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#define SND_PCM_FMTBIT_FLOAT \
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{ ((1U << SND_PCM_FORMAT_FLOAT_LE) | \
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(1U << SND_PCM_FORMAT_FLOAT_BE) | \
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(1U << SND_PCM_FORMAT_FLOAT64_LE) | \
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(1U << SND_PCM_FORMAT_FLOAT64_BE)) }
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