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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
commitf721e3ac031f892af46f255a47d7f54a91317b30 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /audio/ossaudio.c
parentbae1bc39312d5019bd9a5b8d840a529213a69a17 (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'audio/ossaudio.c')
-rw-r--r--audio/ossaudio.c773
1 files changed, 0 insertions, 773 deletions
diff --git a/audio/ossaudio.c b/audio/ossaudio.c
deleted file mode 100644
index 2ccaade..0000000
--- a/audio/ossaudio.c
+++ /dev/null
@@ -1,773 +0,0 @@
-/*
- * QEMU OSS audio driver
- *
- * Copyright (c) 2003-2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <sys/soundcard.h>
-
-#define AUDIO_CAP "oss"
-#include "audio_int.h"
-
-typedef struct OSSVoiceOut {
- HWVoiceOut hw;
- void *pcm_buf;
- int fd;
- int nfrags;
- int fragsize;
- int mmapped;
- int old_optr;
-} OSSVoiceOut;
-
-typedef struct OSSVoiceIn {
- HWVoiceIn hw;
- void *pcm_buf;
- int fd;
- int nfrags;
- int fragsize;
- int old_optr;
-} OSSVoiceIn;
-
-static struct {
- int try_mmap;
- int nfrags;
- int fragsize;
- const char *devpath_out;
- const char *devpath_in;
- int debug;
-} conf = {
- .try_mmap = 0,
- .nfrags = 4,
- .fragsize = 4096,
- .devpath_out = "/dev/dsp",
- .devpath_in = "/dev/dsp",
- .debug = 0
-};
-
-struct oss_params {
- int freq;
- audfmt_e fmt;
- int nchannels;
- int nfrags;
- int fragsize;
-};
-
-static void GCC_FMT_ATTR (2, 3) oss_logerr (int err, const char *fmt, ...)
-{
- va_list ap;
-
- va_start (ap, fmt);
- AUD_vlog (AUDIO_CAP, fmt, ap);
- va_end (ap);
-
- AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err));
-}
-
-static void GCC_FMT_ATTR (3, 4) oss_logerr2 (
- int err,
- const char *typ,
- const char *fmt,
- ...
- )
-{
- va_list ap;
-
- AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
-
- va_start (ap, fmt);
- AUD_vlog (AUDIO_CAP, fmt, ap);
- va_end (ap);
-
- AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err));
-}
-
-static void oss_anal_close (int *fdp)
-{
- int err = close (*fdp);
- if (err) {
- oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp);
- }
- *fdp = -1;
-}
-
-static int oss_write (SWVoiceOut *sw, void *buf, int len)
-{
- return audio_pcm_sw_write (sw, buf, len);
-}
-
-static int aud_to_ossfmt (audfmt_e fmt)
-{
- switch (fmt) {
- case AUD_FMT_S8:
- return AFMT_S8;
-
- case AUD_FMT_U8:
- return AFMT_U8;
-
- case AUD_FMT_S16:
- return AFMT_S16_LE;
-
- case AUD_FMT_U16:
- return AFMT_U16_LE;
-
- default:
- dolog ("Internal logic error: Bad audio format %d\n", fmt);
-#ifdef DEBUG_AUDIO
- abort ();
-#endif
- return AFMT_U8;
- }
-}
-
-static int oss_to_audfmt (int ossfmt, audfmt_e *fmt, int *endianness)
-{
- switch (ossfmt) {
- case AFMT_S8:
- *endianness =0;
- *fmt = AUD_FMT_S8;
- break;
-
- case AFMT_U8:
- *endianness = 0;
- *fmt = AUD_FMT_U8;
- break;
-
- case AFMT_S16_LE:
- *endianness = 0;
- *fmt = AUD_FMT_S16;
- break;
-
- case AFMT_U16_LE:
- *endianness = 0;
- *fmt = AUD_FMT_U16;
- break;
-
- case AFMT_S16_BE:
- *endianness = 1;
- *fmt = AUD_FMT_S16;
- break;
-
- case AFMT_U16_BE:
- *endianness = 1;
- *fmt = AUD_FMT_U16;
- break;
-
- default:
- dolog ("Unrecognized audio format %d\n", ossfmt);
- return -1;
- }
-
- return 0;
-}
-
-#if defined DEBUG_MISMATCHES || defined DEBUG
-static void oss_dump_info (struct oss_params *req, struct oss_params *obt)
-{
- dolog ("parameter | requested value | obtained value\n");
- dolog ("format | %10d | %10d\n", req->fmt, obt->fmt);
- dolog ("channels | %10d | %10d\n",
- req->nchannels, obt->nchannels);
- dolog ("frequency | %10d | %10d\n", req->freq, obt->freq);
- dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags);
- dolog ("fragsize | %10d | %10d\n",
- req->fragsize, obt->fragsize);
-}
-#endif
-
-static int oss_open (int in, struct oss_params *req,
- struct oss_params *obt, int *pfd)
-{
- int fd;
- int mmmmssss;
- audio_buf_info abinfo;
- int fmt, freq, nchannels;
- const char *dspname = in ? conf.devpath_in : conf.devpath_out;
- const char *typ = in ? "ADC" : "DAC";
-
- fd = open (dspname, (in ? O_RDONLY : O_WRONLY) | O_NONBLOCK);
- if (-1 == fd) {
- oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname);
- return -1;
- }
-
- freq = req->freq;
- nchannels = req->nchannels;
- fmt = req->fmt;
-
- if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) {
- oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt);
- goto err;
- }
-
- if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) {
- oss_logerr2 (errno, typ, "Failed to set number of channels %d\n",
- req->nchannels);
- goto err;
- }
-
- if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) {
- oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq);
- goto err;
- }
-
- if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) {
- oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n");
- goto err;
- }
-
- mmmmssss = (req->nfrags << 16) | lsbindex (req->fragsize);
- if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
- oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
- req->nfrags, req->fragsize);
- goto err;
- }
-
- if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) {
- oss_logerr2 (errno, typ, "Failed to get buffer length\n");
- goto err;
- }
-
- if (!abinfo.fragstotal || !abinfo.fragsize) {
- AUD_log(AUDIO_CAP, "Returned bogus buffer information(%d, %d) for %s\n",
- abinfo.fragstotal, abinfo.fragsize, typ);
- goto err;
- }
-
- obt->fmt = fmt;
- obt->nchannels = nchannels;
- obt->freq = freq;
- obt->nfrags = abinfo.fragstotal;
- obt->fragsize = abinfo.fragsize;
- *pfd = fd;
-
-#ifdef DEBUG_MISMATCHES
- if ((req->fmt != obt->fmt) ||
- (req->nchannels != obt->nchannels) ||
- (req->freq != obt->freq) ||
- (req->fragsize != obt->fragsize) ||
- (req->nfrags != obt->nfrags)) {
- dolog ("Audio parameters mismatch\n");
- oss_dump_info (req, obt);
- }
-#endif
-
-#ifdef DEBUG
- oss_dump_info (req, obt);
-#endif
- return 0;
-
- err:
- oss_anal_close (&fd);
- return -1;
-}
-
-static int oss_run_out (HWVoiceOut *hw)
-{
- OSSVoiceOut *oss = (OSSVoiceOut *) hw;
- int err, rpos, live, decr;
- int samples;
- uint8_t *dst;
- st_sample_t *src;
- struct audio_buf_info abinfo;
- struct count_info cntinfo;
- int bufsize;
-
- live = audio_pcm_hw_get_live_out (hw);
- if (!live) {
- return 0;
- }
-
- bufsize = hw->samples << hw->info.shift;
-
- if (oss->mmapped) {
- int bytes;
-
- err = ioctl (oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo);
- if (err < 0) {
- oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
- return 0;
- }
-
- if (cntinfo.ptr == oss->old_optr) {
- if (abs (hw->samples - live) < 64) {
- dolog ("warning: Overrun\n");
- }
- return 0;
- }
-
- if (cntinfo.ptr > oss->old_optr) {
- bytes = cntinfo.ptr - oss->old_optr;
- }
- else {
- bytes = bufsize + cntinfo.ptr - oss->old_optr;
- }
-
- decr = audio_MIN (bytes >> hw->info.shift, live);
- }
- else {
- err = ioctl (oss->fd, SNDCTL_DSP_GETOSPACE, &abinfo);
- if (err < 0) {
- oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
- return 0;
- }
-
- if (abinfo.bytes > bufsize) {
- if (conf.debug) {
- dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
- "please report your OS/audio hw to malc@pulsesoft.com\n",
- abinfo.bytes, bufsize);
- }
- abinfo.bytes = bufsize;
- }
-
- if (abinfo.bytes < 0) {
- if (conf.debug) {
- dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
- abinfo.bytes, bufsize);
- }
- return 0;
- }
-
- decr = audio_MIN (abinfo.bytes >> hw->info.shift, live);
- if (!decr) {
- return 0;
- }
- }
-
- samples = decr;
- rpos = hw->rpos;
- while (samples) {
- int left_till_end_samples = hw->samples - rpos;
- int convert_samples = audio_MIN (samples, left_till_end_samples);
-
- src = hw->mix_buf + rpos;
- dst = advance (oss->pcm_buf, rpos << hw->info.shift);
-
- hw->clip (dst, src, convert_samples);
- if (!oss->mmapped) {
- int written;
-
- written = write (oss->fd, dst, convert_samples << hw->info.shift);
- /* XXX: follow errno recommendations ? */
- if (written == -1) {
- oss_logerr (
- errno,
- "Failed to write %d bytes of audio data from %p\n",
- convert_samples << hw->info.shift,
- dst
- );
- continue;
- }
-
- if (written != convert_samples << hw->info.shift) {
- int wsamples = written >> hw->info.shift;
- int wbytes = wsamples << hw->info.shift;
- if (wbytes != written) {
- dolog ("warning: Misaligned write %d (requested %d), "
- "alignment %d\n",
- wbytes, written, hw->info.align + 1);
- }
- decr -= wsamples;
- rpos = (rpos + wsamples) % hw->samples;
- break;
- }
- }
-
- rpos = (rpos + convert_samples) % hw->samples;
- samples -= convert_samples;
- }
- if (oss->mmapped) {
- oss->old_optr = cntinfo.ptr;
- }
-
- hw->rpos = rpos;
- return decr;
-}
-
-static void oss_fini_out (HWVoiceOut *hw)
-{
- int err;
- OSSVoiceOut *oss = (OSSVoiceOut *) hw;
-
- ldebug ("oss_fini\n");
- oss_anal_close (&oss->fd);
-
- if (oss->pcm_buf) {
- if (oss->mmapped) {
- err = munmap (oss->pcm_buf, hw->samples << hw->info.shift);
- if (err) {
- oss_logerr (errno, "Failed to unmap buffer %p, size %d\n",
- oss->pcm_buf, hw->samples << hw->info.shift);
- }
- }
- else {
- qemu_free (oss->pcm_buf);
- }
- oss->pcm_buf = NULL;
- }
-}
-
-static int oss_init_out (HWVoiceOut *hw, audsettings_t *as)
-{
- OSSVoiceOut *oss = (OSSVoiceOut *) hw;
- struct oss_params req, obt;
- int endianness;
- int err;
- int fd;
- audfmt_e effective_fmt;
- audsettings_t obt_as;
-
- oss->fd = -1;
-
- req.fmt = aud_to_ossfmt (as->fmt);
- req.freq = as->freq;
- req.nchannels = as->nchannels;
- req.fragsize = conf.fragsize;
- req.nfrags = conf.nfrags;
-
- if (oss_open (0, &req, &obt, &fd)) {
- return -1;
- }
-
- err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness);
- if (err) {
- oss_anal_close (&fd);
- return -1;
- }
-
- obt_as.freq = obt.freq;
- obt_as.nchannels = obt.nchannels;
- obt_as.fmt = effective_fmt;
- obt_as.endianness = endianness;
-
- audio_pcm_init_info (&hw->info, &obt_as);
- oss->nfrags = obt.nfrags;
- oss->fragsize = obt.fragsize;
-
- if (obt.nfrags * obt.fragsize & hw->info.align) {
- dolog ("warning: Misaligned DAC buffer, size %d, alignment %d\n",
- obt.nfrags * obt.fragsize, hw->info.align + 1);
- }
-
- hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift;
-
- oss->mmapped = 0;
- if (conf.try_mmap) {
- oss->pcm_buf = mmap (
- 0,
- hw->samples << hw->info.shift,
- PROT_READ | PROT_WRITE,
- MAP_SHARED,
- fd,
- 0
- );
- if (oss->pcm_buf == MAP_FAILED) {
- oss_logerr (errno, "Failed to map %d bytes of DAC\n",
- hw->samples << hw->info.shift);
- } else {
- int err;
- int trig = 0;
- if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
- oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
- }
- else {
- trig = PCM_ENABLE_OUTPUT;
- if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
- oss_logerr (
- errno,
- "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
- );
- }
- else {
- oss->mmapped = 1;
- }
- }
-
- if (!oss->mmapped) {
- err = munmap (oss->pcm_buf, hw->samples << hw->info.shift);
- if (err) {
- oss_logerr (errno, "Failed to unmap buffer %p size %d\n",
- oss->pcm_buf, hw->samples << hw->info.shift);
- }
- }
- }
- }
-
- if (!oss->mmapped) {
- oss->pcm_buf = audio_calloc (
- AUDIO_FUNC,
- hw->samples,
- 1 << hw->info.shift
- );
- if (!oss->pcm_buf) {
- dolog (
- "Could not allocate DAC buffer (%d samples, each %d bytes)\n",
- hw->samples,
- 1 << hw->info.shift
- );
- oss_anal_close (&fd);
- return -1;
- }
- }
-
- oss->fd = fd;
- return 0;
-}
-
-static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
-{
- int trig;
- OSSVoiceOut *oss = (OSSVoiceOut *) hw;
-
- if (!oss->mmapped) {
- return 0;
- }
-
- switch (cmd) {
- case VOICE_ENABLE:
- ldebug ("enabling voice\n");
- audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples);
- trig = PCM_ENABLE_OUTPUT;
- if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
- oss_logerr (
- errno,
- "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
- );
- return -1;
- }
- break;
-
- case VOICE_DISABLE:
- ldebug ("disabling voice\n");
- trig = 0;
- if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
- oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
- return -1;
- }
- break;
- }
- return 0;
-}
-
-static int oss_init_in (HWVoiceIn *hw, audsettings_t *as)
-{
- OSSVoiceIn *oss = (OSSVoiceIn *) hw;
- struct oss_params req, obt;
- int endianness;
- int err;
- int fd;
- audfmt_e effective_fmt;
- audsettings_t obt_as;
-
- oss->fd = -1;
-
- req.fmt = aud_to_ossfmt (as->fmt);
- req.freq = as->freq;
- req.nchannels = as->nchannels;
- req.fragsize = conf.fragsize;
- req.nfrags = conf.nfrags;
- if (oss_open (1, &req, &obt, &fd)) {
- return -1;
- }
-
- err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness);
- if (err) {
- oss_anal_close (&fd);
- return -1;
- }
-
- obt_as.freq = obt.freq;
- obt_as.nchannels = obt.nchannels;
- obt_as.fmt = effective_fmt;
- obt_as.endianness = endianness;
-
- audio_pcm_init_info (&hw->info, &obt_as);
- oss->nfrags = obt.nfrags;
- oss->fragsize = obt.fragsize;
-
- if (obt.nfrags * obt.fragsize & hw->info.align) {
- dolog ("warning: Misaligned ADC buffer, size %d, alignment %d\n",
- obt.nfrags * obt.fragsize, hw->info.align + 1);
- }
-
- hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift;
- oss->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
- if (!oss->pcm_buf) {
- dolog ("Could not allocate ADC buffer (%d samples, each %d bytes)\n",
- hw->samples, 1 << hw->info.shift);
- oss_anal_close (&fd);
- return -1;
- }
-
- oss->fd = fd;
- return 0;
-}
-
-static void oss_fini_in (HWVoiceIn *hw)
-{
- OSSVoiceIn *oss = (OSSVoiceIn *) hw;
-
- oss_anal_close (&oss->fd);
-
- if (oss->pcm_buf) {
- qemu_free (oss->pcm_buf);
- oss->pcm_buf = NULL;
- }
-}
-
-static int oss_run_in (HWVoiceIn *hw)
-{
- OSSVoiceIn *oss = (OSSVoiceIn *) hw;
- int hwshift = hw->info.shift;
- int i;
- int live = audio_pcm_hw_get_live_in (hw);
- int dead = hw->samples - live;
- size_t read_samples = 0;
- struct {
- int add;
- int len;
- } bufs[2] = {
- { hw->wpos, 0 },
- { 0, 0 }
- };
-
- if (!dead) {
- return 0;
- }
-
- if (hw->wpos + dead > hw->samples) {
- bufs[0].len = (hw->samples - hw->wpos) << hwshift;
- bufs[1].len = (dead - (hw->samples - hw->wpos)) << hwshift;
- }
- else {
- bufs[0].len = dead << hwshift;
- }
-
-
- for (i = 0; i < 2; ++i) {
- ssize_t nread;
-
- if (bufs[i].len) {
- void *p = advance (oss->pcm_buf, bufs[i].add << hwshift);
- nread = read (oss->fd, p, bufs[i].len);
-
- if (nread > 0) {
- if (nread & hw->info.align) {
- dolog ("warning: Misaligned read %zd (requested %d), "
- "alignment %d\n", nread, bufs[i].add << hwshift,
- hw->info.align + 1);
- }
- read_samples += nread >> hwshift;
- hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift,
- &nominal_volume);
- }
-
- if (bufs[i].len - nread) {
- if (nread == -1) {
- switch (errno) {
- case EINTR:
- case EAGAIN:
- break;
- default:
- oss_logerr (
- errno,
- "Failed to read %d bytes of audio (to %p)\n",
- bufs[i].len, p
- );
- break;
- }
- }
- break;
- }
- }
- }
-
- hw->wpos = (hw->wpos + read_samples) % hw->samples;
- return read_samples;
-}
-
-static int oss_read (SWVoiceIn *sw, void *buf, int size)
-{
- return audio_pcm_sw_read (sw, buf, size);
-}
-
-static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
-{
- (void) hw;
- (void) cmd;
- return 0;
-}
-
-static void *oss_audio_init (void)
-{
- return &conf;
-}
-
-static void oss_audio_fini (void *opaque)
-{
- (void) opaque;
-}
-
-static struct audio_option oss_options[] = {
- {"FRAGSIZE", AUD_OPT_INT, &conf.fragsize,
- "Fragment size in bytes", NULL, 0},
- {"NFRAGS", AUD_OPT_INT, &conf.nfrags,
- "Number of fragments", NULL, 0},
- {"MMAP", AUD_OPT_BOOL, &conf.try_mmap,
- "Try using memory mapped access", NULL, 0},
- {"DAC_DEV", AUD_OPT_STR, &conf.devpath_out,
- "Path to DAC device", NULL, 0},
- {"ADC_DEV", AUD_OPT_STR, &conf.devpath_in,
- "Path to ADC device", NULL, 0},
- {"DEBUG", AUD_OPT_BOOL, &conf.debug,
- "Turn on some debugging messages", NULL, 0},
- {NULL, 0, NULL, NULL, NULL, 0}
-};
-
-static struct audio_pcm_ops oss_pcm_ops = {
- oss_init_out,
- oss_fini_out,
- oss_run_out,
- oss_write,
- oss_ctl_out,
-
- oss_init_in,
- oss_fini_in,
- oss_run_in,
- oss_read,
- oss_ctl_in
-};
-
-struct audio_driver oss_audio_driver = {
- INIT_FIELD (name = ) "oss",
- INIT_FIELD (descr = ) "OSS audio (www.opensound.com)",
- INIT_FIELD (options = ) oss_options,
- INIT_FIELD (init = ) oss_audio_init,
- INIT_FIELD (fini = ) oss_audio_fini,
- INIT_FIELD (pcm_ops = ) &oss_pcm_ops,
- INIT_FIELD (can_be_default = ) 1,
- INIT_FIELD (max_voices_out = ) INT_MAX,
- INIT_FIELD (max_voices_in = ) INT_MAX,
- INIT_FIELD (voice_size_out = ) sizeof (OSSVoiceOut),
- INIT_FIELD (voice_size_in = ) sizeof (OSSVoiceIn)
-};