/media/libsydneyaudio/src/sydney_audio_sunaudio.c
http://github.com/zpao/v8monkey · C · 756 lines · 503 code · 94 blank · 159 comment · 118 complexity · 9b7ddb4e5748599672a7a523832b951d MD5 · raw file
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Initial Developer of the Original Code is
- * Copyright (C) 2008 Sun Microsystems, Inc.,
- * Brian Lu <brian.lu@sun.com>
- *
- * Contributor(s):
- * Ginn Chen <ginn.chen@sun.com>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** *
- */
- #include <errno.h>
- #include <fcntl.h>
- #include <pthread.h>
- #include <stdbool.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <stropts.h>
- #include <unistd.h>
- #include <sys/audio.h>
- #include <sys/stat.h>
- #include <sys/mixer.h>
- #include "sydney_audio.h"
- /* Sun Audio implementation based heavily on sydney_audio_mac.c */
- #define DEFAULT_AUDIO_DEVICE "/dev/audio"
- #define DEFAULT_DSP_DEVICE "/dev/dsp"
- /* Macros copied from audio_oss.h */
- /*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
- /*
- * Copyright (C) 4Front Technologies 1996-2008.
- *
- * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
- */
- #define OSSIOCPARM_MASK 0x1fff /* parameters must be < 8192 bytes */
- #define OSSIOC_VOID 0x00000000 /* no parameters */
- #define OSSIOC_OUT 0x20000000 /* copy out parameters */
- #define OSSIOC_IN 0x40000000 /* copy in parameters */
- #define OSSIOC_INOUT (OSSIOC_IN|OSSIOC_OUT)
- #define OSSIOC_SZ(t) ((sizeof (t) & OSSIOCPARM_MASK) << 16)
- #define __OSSIO(x, y) ((int)(OSSIOC_VOID|(x<<8)|y))
- #define __OSSIOR(x, y, t) ((int)(OSSIOC_OUT|OSSIOC_SZ(t)|(x<<8)|y))
- #define __OSSIOWR(x, y, t) ((int)(OSSIOC_INOUT|OSSIOC_SZ(t)|(x<<8)|y))
- #define SNDCTL_DSP_SPEED __OSSIOWR('P', 2, int)
- #define SNDCTL_DSP_CHANNELS __OSSIOWR('P', 6, int)
- #define SNDCTL_DSP_SETFMT __OSSIOWR('P', 5, int) /* Selects ONE fmt */
- #define SNDCTL_DSP_GETPLAYVOL __OSSIOR('P', 24, int)
- #define SNDCTL_DSP_SETPLAYVOL __OSSIOWR('P', 24, int)
- #define SNDCTL_DSP_HALT_OUTPUT __OSSIO('P', 34)
- #define AFMT_S16_LE 0x00000010
- #define AFMT_S16_BE 0x00000020
- #ifdef SA_LITTLE_ENDIAN
- #define AFMT_S16_NE AFMT_S16_LE
- #else
- #define AFMT_S16_NE AFMT_S16_BE
- #endif
- typedef struct sa_buf sa_buf;
- struct sa_buf {
- unsigned int size;
- unsigned int start;
- unsigned int end;
- sa_buf * next;
- unsigned char data[];
- };
- struct sa_stream {
- bool using_oss;
- int output_fd;
- pthread_t thread_id;
- pthread_mutex_t mutex;
- bool playing;
- int64_t bytes_played;
- /* audio format info */
- unsigned int rate;
- unsigned int n_channels;
- unsigned int bytes_per_ch;
- /* buffer list */
- sa_buf * bl_head;
- sa_buf * bl_tail;
- int n_bufs;
- };
- /* Use a default buffer size with enough room for one second of audio,
- * assuming stereo data at 44.1kHz with 32 bits per channel, and impose
- * a generous limit on the number of buffers.
- */
- #define BUF_SIZE (2 * 44100 * 4)
- #define BUF_LIMIT 5
- #if BUF_LIMIT < 2
- #error BUF_LIMIT must be at least 2!
- #endif
- static void *audio_callback(void *s);
- static sa_buf *new_buffer(void);
- static int shutdown_device(sa_stream_t *s);
- /*
- * -----------------------------------------------------------------------------
- * Startup and shutdown functions
- * -----------------------------------------------------------------------------
- */
- int
- sa_stream_create_pcm(
- sa_stream_t ** _s,
- const char * client_name,
- sa_mode_t mode,
- sa_pcm_format_t format,
- unsigned int rate,
- unsigned int n_channels
- ) {
- /*
- * Make sure we return a NULL stream pointer on failure.
- */
- if (_s == NULL) {
- return SA_ERROR_INVALID;
- }
- *_s = NULL;
- if (mode != SA_MODE_WRONLY) {
- return SA_ERROR_NOT_SUPPORTED;
- }
- if (format != SA_PCM_FORMAT_S16_NE) {
- return SA_ERROR_NOT_SUPPORTED;
- }
- /*
- * Allocate the instance and required resources.
- */
- sa_stream_t *s;
- if ((s = malloc(sizeof(sa_stream_t))) == NULL) {
- return SA_ERROR_OOM;
- }
- if ((s->bl_head = new_buffer()) == NULL) {
- free(s);
- return SA_ERROR_SYSTEM;
- }
- if (pthread_mutex_init(&s->mutex, NULL) != 0) {
- free(s->bl_head);
- free(s);
- return SA_ERROR_SYSTEM;
- }
- s->output_fd = -1;
- s->playing = false;
- s->bytes_played = 0;
- s->rate = rate;
- s->n_channels = n_channels;
- s->bytes_per_ch = 2;
- s->bl_tail = s->bl_head;
- s->n_bufs = 1;
- *_s = s;
- return SA_SUCCESS;
- }
- int
- sa_stream_open(sa_stream_t *s) {
- if (s == NULL) {
- return SA_ERROR_NO_INIT;
- }
- if (s->output_fd != -1) {
- return SA_ERROR_INVALID;
- }
- /*
- * Open the default audio output unit.
- */
- /* If UTAUDIODEV is set, use it with Sun Audio interface */
- char * sa_device_name = getenv("UTAUDIODEV");
- char * dsp_device_name = NULL;
- if (!sa_device_name) {
- dsp_device_name = getenv("AUDIODSP");
- if (!dsp_device_name) {
- dsp_device_name = DEFAULT_DSP_DEVICE;
- }
- sa_device_name = getenv("AUDIODEV");
- if (!sa_device_name) {
- sa_device_name = DEFAULT_AUDIO_DEVICE;
- }
- }
- int fd = -1;
- s->using_oss = false;
- /* Try to use OSS if available */
- if (dsp_device_name) {
- fd = open(dsp_device_name, O_WRONLY | O_NONBLOCK);
- if (fd >= 0) {
- s->using_oss = true;
- }
- }
- /* Try Sun Audio */
- if (!s->using_oss) {
- fd = open(sa_device_name, O_WRONLY | O_NONBLOCK);
- }
- if (fd < 0)
- {
- printf("Open %s failed:%s.\n", sa_device_name, strerror(errno));
- return SA_ERROR_NO_DEVICE;
- }
- if (s->using_oss) {
- /* set the playback rate */
- if (ioctl(fd, SNDCTL_DSP_SPEED, &(s->rate)) < 0) {
- close(fd);
- return SA_ERROR_NOT_SUPPORTED;
- }
- /* set the channel numbers */
- if (ioctl(fd, SNDCTL_DSP_CHANNELS, &(s->n_channels)) < 0) {
- close(fd);
- return SA_ERROR_NOT_SUPPORTED;
- }
- int format = AFMT_S16_NE;
- if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0) {
- close(fd);
- return SA_ERROR_NOT_SUPPORTED;
- }
- s->output_fd = fd;
- return SA_SUCCESS;
- }
- audio_info_t audio_info;
- AUDIO_INITINFO(&audio_info)
- audio_info.play.sample_rate = s->rate;
- audio_info.play.channels = s->n_channels;
- audio_info.play.precision = s->bytes_per_ch * 8;
- /* Signed Linear PCM encoding */
- audio_info.play.encoding = AUDIO_ENCODING_LINEAR;
- if (ioctl(fd, AUDIO_SETINFO, &audio_info) == -1) {
- printf("ioctl AUDIO_SETINFO failed.\n");
- close(fd);
- return SA_ERROR_NOT_SUPPORTED;
- }
- s->output_fd = fd;
- return SA_SUCCESS;
- }
- int
- sa_stream_destroy(sa_stream_t *s) {
- if (s == NULL) {
- return SA_SUCCESS;
- }
- /*
- * Join the thread.
- */
- bool thread_created = false;
- pthread_mutex_lock(&s->mutex);
- if (s->playing) {
- thread_created = true;
- s->playing = false;
- }
- pthread_mutex_unlock(&s->mutex);
- if (thread_created) {
- pthread_join(s->thread_id, NULL);
- }
- int result = SA_SUCCESS;
- /*
- * Shutdown the audio output device.
- */
- result = shutdown_device(s);
- /*
- * Release resouces.
- */
- if (pthread_mutex_destroy(&s->mutex) != 0) {
- result = SA_ERROR_SYSTEM;
- }
- while (s->bl_head != NULL) {
- sa_buf * next = s->bl_head->next;
- free(s->bl_head);
- s->bl_head = next;
- }
- free(s);
- return result;
- }
- /*
- * -----------------------------------------------------------------------------
- * Data read and write functions
- * -----------------------------------------------------------------------------
- */
- int
- sa_stream_write(sa_stream_t *s, const void *data, size_t nbytes) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- if (nbytes == 0) {
- return SA_SUCCESS;
- }
- pthread_mutex_lock(&s->mutex);
- /*
- * Append the new data to the end of our buffer list.
- */
- int result = SA_SUCCESS;
- while (1) {
- unsigned int avail = s->bl_tail->size - s->bl_tail->end;
- if (nbytes <= avail) {
- /*
- * The new data will fit into the current tail buffer, so
- * just copy it in and we're done.
- */
- memcpy(s->bl_tail->data + s->bl_tail->end, data, nbytes);
- s->bl_tail->end += nbytes;
- break;
- } else {
- /*
- * Copy what we can into the tail and allocate a new buffer
- * for the rest.
- */
- memcpy(s->bl_tail->data + s->bl_tail->end, data, avail);
- s->bl_tail->end += avail;
- data = ((unsigned char *)data) + avail;
- nbytes -= avail;
- /*
- * If we still have data left to copy but we've hit the limit of
- * allowable buffer allocations, we need to spin for a bit to allow
- * the audio callback function to slurp some more data up.
- */
- if (nbytes > 0 && s->n_bufs == BUF_LIMIT) {
- #ifdef TIMING_TRACE
- printf("#"); /* too much audio data */
- #endif
- if (!s->playing) {
- /*
- * We haven't even started playing yet! That means the
- * BUF_SIZE/BUF_LIMIT values are too low... Not much we can
- * do here; spinning won't help because the audio callback
- * hasn't been enabled yet. Oh well, error time.
- */
- printf("Too much audio data received before audio device enabled!\n");
- result = SA_ERROR_SYSTEM;
- break;
- }
- while (s->n_bufs == BUF_LIMIT) {
- pthread_mutex_unlock(&s->mutex);
- struct timespec ts = {0, 1000000};
- nanosleep(&ts, NULL);
- pthread_mutex_lock(&s->mutex);
- }
- }
- /*
- * Allocate a new tail buffer, and go 'round again to fill it up.
- */
- if ((s->bl_tail->next = new_buffer()) == NULL) {
- result = SA_ERROR_OOM;
- break;
- }
- s->n_bufs++;
- s->bl_tail = s->bl_tail->next;
- } /* if (nbytes <= avail), else */
- } /* while (1) */
- /*
- * Once we have our first block of audio data, enable the audio callback
- * function.
- */
- if (!s->playing) {
- s->playing = true;
- if (pthread_create(&s->thread_id, NULL, audio_callback, s) != 0) {
- result = SA_ERROR_SYSTEM;
- }
- }
- pthread_mutex_unlock(&s->mutex);
- return result;
- }
- static void *
- audio_callback(void *data) {
- sa_stream_t *s = data;
- pthread_mutex_lock(&s->mutex);
- while (s->playing) {
- /*
- * Consume data from the start of the buffer list.
- */
- while (s->output_fd != -1) {
- unsigned int avail = s->bl_head->end - s->bl_head->start;
- if (avail > 0) {
- int written = write(s->output_fd, s->bl_head->data + s->bl_head->start, avail);
- if (written == -1) {
- break; /* Try again later. */
- }
- s->bl_head->start += written;
- s->bytes_played += written;
- if (written < avail) {
- break;
- }
- }
- sa_buf * next = s->bl_head->next;
- if (next == NULL) {
- #ifdef TIMING_TRACE
- printf("!"); /* not enough audio data */
- #endif
- break;
- }
- free(s->bl_head);
- s->bl_head = next;
- s->n_bufs--;
- } /* while (s->output_fd != -1) */
- pthread_mutex_unlock(&s->mutex);
- struct timespec ts = {0, 1000000};
- nanosleep(&ts, NULL);
- pthread_mutex_lock(&s->mutex);
- } /* s->playing */
- pthread_mutex_unlock(&s->mutex);
- return NULL;
- }
- /*
- * -----------------------------------------------------------------------------
- * General query and support functions
- * -----------------------------------------------------------------------------
- */
- int
- sa_stream_get_write_size(sa_stream_t *s, size_t *size) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- pthread_mutex_lock(&s->mutex);
- /*
- * The sum of the free space in the tail buffer plus the size of any new
- * buffers represents the write space available before blocking.
- */
- unsigned int avail = s->bl_tail->size - s->bl_tail->end;
- avail += (BUF_LIMIT - s->n_bufs) * BUF_SIZE;
- *size = avail;
- pthread_mutex_unlock(&s->mutex);
- return SA_SUCCESS;
- }
- /* ---------------------------------------------------------------------------
- * General query and support functions
- * -----------------------------------------------------------------------------
- */
- int
- sa_stream_get_position(sa_stream_t *s, sa_position_t position, int64_t *pos) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- if (position != SA_POSITION_WRITE_SOFTWARE) {
- return SA_ERROR_NOT_SUPPORTED;
- }
- pthread_mutex_lock(&s->mutex);
- *pos = s->bytes_played;
- pthread_mutex_unlock(&s->mutex);
- return SA_SUCCESS;
- }
- int
- sa_stream_drain(sa_stream_t *s) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- while (1) {
- pthread_mutex_lock(&s->mutex);
- sa_buf * b;
- size_t used = 0;
- for (b = s->bl_head; b != NULL; b = b->next) {
- used += b->end - b->start;
- }
- pthread_mutex_unlock(&s->mutex);
- if (used == 0) {
- break;
- }
- struct timespec ts = {0, 1000000};
- nanosleep(&ts, NULL);
- }
- return SA_SUCCESS;
- }
- int
- sa_stream_pause(sa_stream_t *s) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- pthread_mutex_lock(&s->mutex);
- int result = shutdown_device(s);
- if (result == SA_SUCCESS) {
- s->output_fd = -1;
- }
- pthread_mutex_unlock(&s->mutex);
- return result;
- }
- int
- sa_stream_resume(sa_stream_t *s) {
- if (s == NULL) {
- return SA_ERROR_NO_INIT;
- }
- pthread_mutex_lock(&s->mutex);
- int result = sa_stream_open(s);
- pthread_mutex_unlock(&s->mutex);
- return result;
- }
- static sa_buf *
- new_buffer(void) {
- sa_buf * b = malloc(sizeof(sa_buf) + BUF_SIZE);
- if (b != NULL) {
- b->size = BUF_SIZE;
- b->start = 0;
- b->end = 0;
- b->next = NULL;
- }
- return b;
- }
- static int
- shutdown_device(sa_stream_t *s) {
- if (s->output_fd != -1)
- {
- /* Flush buffer. */
- if (s->using_oss) {
- ioctl(s->output_fd, SNDCTL_DSP_HALT_OUTPUT);
- } else {
- ioctl(s->output_fd, I_FLUSH);
- }
- if (close(s->output_fd) < 0)
- {
- return SA_ERROR_SYSTEM;
- }
- }
- return SA_SUCCESS;
- }
- /*
- * -----------------------------------------------------------------------------
- * Extension functions
- * -----------------------------------------------------------------------------
- */
- int
- sa_stream_set_volume_abs(sa_stream_t *s, float vol) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- if (s->using_oss) {
- int mvol = ((int)(100 * vol)) | ((int)(100 * vol) << 8);
- if (ioctl(s->output_fd, SNDCTL_DSP_SETPLAYVOL, &mvol) < 0) {
- return SA_ERROR_SYSTEM;
- }
- return SA_SUCCESS;
- }
- unsigned int newVolume = (AUDIO_MAX_GAIN - AUDIO_MIN_GAIN) * vol + AUDIO_MIN_GAIN;
- /* Check if the new volume is valid or not */
- if ( newVolume < AUDIO_MIN_GAIN || newVolume > AUDIO_MAX_GAIN )
- return SA_ERROR_INVALID;
- pthread_mutex_lock(&s->mutex);
- audio_info_t audio_info;
- AUDIO_INITINFO(&audio_info);
- audio_info.play.gain = newVolume;
- int err = ioctl(s->output_fd, AUDIO_SETINFO, &audio_info);
- pthread_mutex_unlock(&s->mutex);
- if (err == -1)
- {
- perror("sa_stream_set_volume_abs failed\n");
- return SA_ERROR_SYSTEM;
- }
- return SA_SUCCESS;
- }
- int
- sa_stream_get_volume_abs(sa_stream_t *s, float *vol) {
- if (s == NULL || s->output_fd == -1) {
- return SA_ERROR_NO_INIT;
- }
- if (s->using_oss) {
- int mvol;
- if (ioctl(s->output_fd, SNDCTL_DSP_GETPLAYVOL, &mvol) < 0){
- return SA_ERROR_SYSTEM;
- }
- *vol = ((mvol & 0xFF) + (mvol >> 8)) / 200.0f;
- return SA_SUCCESS;
- }
- pthread_mutex_lock(&s->mutex);
- audio_info_t audio_info;
- AUDIO_INITINFO(&audio_info);
- int err = ioctl(s->output_fd, AUDIO_GETINFO, &audio_info);
- pthread_mutex_unlock(&s->mutex);
- if (err == -1)
- {
- perror("sa_stream_get_volume_abs failed\n");
- return SA_ERROR_SYSTEM;
- }
- *vol = (float)((audio_info.play.gain - AUDIO_MIN_GAIN))/(AUDIO_MAX_GAIN - AUDIO_MIN_GAIN);
- return SA_SUCCESS;
- }
- /*
- * -----------------------------------------------------------------------------
- * Unsupported functions
- * -----------------------------------------------------------------------------
- */
- #define UNSUPPORTED(func) func { return SA_ERROR_NOT_SUPPORTED; }
- UNSUPPORTED(int sa_stream_create_opaque(sa_stream_t **s, const char *client_name, sa_mode_t mode, const char *codec))
- UNSUPPORTED(int sa_stream_set_write_lower_watermark(sa_stream_t *s, size_t size))
- UNSUPPORTED(int sa_stream_set_read_lower_watermark(sa_stream_t *s, size_t size))
- UNSUPPORTED(int sa_stream_set_write_upper_watermark(sa_stream_t *s, size_t size))
- UNSUPPORTED(int sa_stream_set_read_upper_watermark(sa_stream_t *s, size_t size))
- UNSUPPORTED(int sa_stream_set_channel_map(sa_stream_t *s, const sa_channel_t map[], unsigned int n))
- UNSUPPORTED(int sa_stream_set_xrun_mode(sa_stream_t *s, sa_xrun_mode_t mode))
- UNSUPPORTED(int sa_stream_set_non_interleaved(sa_stream_t *s, int enable))
- UNSUPPORTED(int sa_stream_set_dynamic_rate(sa_stream_t *s, int enable))
- UNSUPPORTED(int sa_stream_set_driver(sa_stream_t *s, const char *driver))
- UNSUPPORTED(int sa_stream_start_thread(sa_stream_t *s, sa_event_callback_t callback))
- UNSUPPORTED(int sa_stream_stop_thread(sa_stream_t *s))
- UNSUPPORTED(int sa_stream_change_device(sa_stream_t *s, const char *device_name))
- UNSUPPORTED(int sa_stream_change_read_volume(sa_stream_t *s, const int32_t vol[], unsigned int n))
- UNSUPPORTED(int sa_stream_change_write_volume(sa_stream_t *s, const int32_t vol[], unsigned int n))
- UNSUPPORTED(int sa_stream_change_rate(sa_stream_t *s, unsigned int rate))
- UNSUPPORTED(int sa_stream_change_meta_data(sa_stream_t *s, const char *name, const void *data, size_t size))
- UNSUPPORTED(int sa_stream_change_user_data(sa_stream_t *s, const void *value))
- UNSUPPORTED(int sa_stream_set_adjust_rate(sa_stream_t *s, sa_adjust_t direction))
- UNSUPPORTED(int sa_stream_set_adjust_nchannels(sa_stream_t *s, sa_adjust_t direction))
- UNSUPPORTED(int sa_stream_set_adjust_pcm_format(sa_stream_t *s, sa_adjust_t direction))
- UNSUPPORTED(int sa_stream_set_adjust_watermarks(sa_stream_t *s, sa_adjust_t direction))
- UNSUPPORTED(int sa_stream_get_mode(sa_stream_t *s, sa_mode_t *access_mode))
- UNSUPPORTED(int sa_stream_get_codec(sa_stream_t *s, char *codec, size_t *size))
- UNSUPPORTED(int sa_stream_get_pcm_format(sa_stream_t *s, sa_pcm_format_t *format))
- UNSUPPORTED(int sa_stream_get_rate(sa_stream_t *s, unsigned int *rate))
- UNSUPPORTED(int sa_stream_get_nchannels(sa_stream_t *s, int *nchannels))
- UNSUPPORTED(int sa_stream_get_user_data(sa_stream_t *s, void **value))
- UNSUPPORTED(int sa_stream_get_write_lower_watermark(sa_stream_t *s, size_t *size))
- UNSUPPORTED(int sa_stream_get_read_lower_watermark(sa_stream_t *s, size_t *size))
- UNSUPPORTED(int sa_stream_get_write_upper_watermark(sa_stream_t *s, size_t *size))
- UNSUPPORTED(int sa_stream_get_read_upper_watermark(sa_stream_t *s, size_t *size))
- UNSUPPORTED(int sa_stream_get_channel_map(sa_stream_t *s, sa_channel_t map[], unsigned int *n))
- UNSUPPORTED(int sa_stream_get_xrun_mode(sa_stream_t *s, sa_xrun_mode_t *mode))
- UNSUPPORTED(int sa_stream_get_non_interleaved(sa_stream_t *s, int *enabled))
- UNSUPPORTED(int sa_stream_get_dynamic_rate(sa_stream_t *s, int *enabled))
- UNSUPPORTED(int sa_stream_get_driver(sa_stream_t *s, char *driver_name, size_t *size))
- UNSUPPORTED(int sa_stream_get_device(sa_stream_t *s, char *device_name, size_t *size))
- UNSUPPORTED(int sa_stream_get_read_volume(sa_stream_t *s, int32_t vol[], unsigned int *n))
- UNSUPPORTED(int sa_stream_get_write_volume(sa_stream_t *s, int32_t vol[], unsigned int *n))
- UNSUPPORTED(int sa_stream_get_meta_data(sa_stream_t *s, const char *name, void*data, size_t *size))
- UNSUPPORTED(int sa_stream_get_adjust_rate(sa_stream_t *s, sa_adjust_t *direction))
- UNSUPPORTED(int sa_stream_get_adjust_nchannels(sa_stream_t *s, sa_adjust_t *direction))
- UNSUPPORTED(int sa_stream_get_adjust_pcm_format(sa_stream_t *s, sa_adjust_t *direction))
- UNSUPPORTED(int sa_stream_get_adjust_watermarks(sa_stream_t *s, sa_adjust_t *direction))
- UNSUPPORTED(int sa_stream_get_state(sa_stream_t *s, sa_state_t *state))
- UNSUPPORTED(int sa_stream_get_event_error(sa_stream_t *s, sa_error_t *error))
- UNSUPPORTED(int sa_stream_get_event_notify(sa_stream_t *s, sa_notify_t *notify))
- UNSUPPORTED(int sa_stream_read(sa_stream_t *s, void *data, size_t nbytes))
- UNSUPPORTED(int sa_stream_read_ni(sa_stream_t *s, unsigned int channel, void *data, size_t nbytes))
- UNSUPPORTED(int sa_stream_write_ni(sa_stream_t *s, unsigned int channel, const void *data, size_t nbytes))
- UNSUPPORTED(int sa_stream_pwrite(sa_stream_t *s, const void *data, size_t nbytes, int64_t offset, sa_seek_t whence))
- UNSUPPORTED(int sa_stream_pwrite_ni(sa_stream_t *s, unsigned int channel, const void *data, size_t nbytes, int64_t offset, sa_seek_t whence))
- UNSUPPORTED(int sa_stream_get_read_size(sa_stream_t *s, size_t *size))
- UNSUPPORTED(int sa_stream_get_min_write(sa_stream_t *s, size_t *size))
- const char *sa_strerror(int code) { return NULL; }