/*****************************************************************************
- * oss.c : OSS /dev/dsp module for vlc
+ * oss.c: Open Sound System audio output plugin for VLC
*****************************************************************************
- * Copyright (C) 2000-2002 VideoLAN
- * $Id: oss.c,v 1.14 2002/08/24 01:14:29 sigmunau Exp $
+ * Copyright (C) 2000-2002 VLC authors and VideoLAN
+ * Copyright (C) 2007-2012 RĂ©mi Denis-Courmont
*
* Authors: Michel Kaempf <maxx@via.ecp.fr>
- * Samuel Hocevar <sam@zoy.org>
+ * Sam Hocevar <sam@zoy.org>
* Christophe Massiot <massiot@via.ecp.fr>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#include <errno.h> /* ENOMEM */
-#include <fcntl.h> /* open(), O_WRONLY */
-#include <sys/ioctl.h> /* ioctl() */
-#include <string.h> /* strerror() */
-#include <unistd.h> /* write(), close() */
-#include <stdlib.h> /* calloc(), malloc(), free() */
-
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#ifdef HAVE_ALLOCA_H
-# include <alloca.h>
+#include <stdlib.h>
+#include <math.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_SOUNDCARD_H
+# include <soundcard.h>
+#else
+# include <sys/soundcard.h>
#endif
-#include <vlc/aout.h>
+#ifndef SNDCTL_DSP_HALT
+# define SNDCTL_DSP_HALT SNDCTL_DSP_RESET
+#endif
-#include "aout_internal.h"
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_fs.h>
+#include <vlc_cpu.h>
+#include <vlc_aout.h>
-/* SNDCTL_DSP_RESET, SNDCTL_DSP_SETFMT, SNDCTL_DSP_STEREO, SNDCTL_DSP_SPEED,
- * SNDCTL_DSP_GETOSPACE */
-#ifdef HAVE_SOUNDCARD_H
-# include <soundcard.h>
-#elif defined( HAVE_SYS_SOUNDCARD_H )
-# include <sys/soundcard.h>
-#elif defined( HAVE_MACHINE_SOUNDCARD_H )
-# include <machine/soundcard.h>
-#endif
+#define A52_FRAME_NB 1536
-/*****************************************************************************
- * aout_sys_t: OSS audio output method descriptor
- *****************************************************************************
- * This structure is part of the audio output thread descriptor.
- * It describes the dsp specific properties of an audio device.
- *****************************************************************************/
struct aout_sys_t
{
- int i_fd;
- volatile vlc_bool_t b_initialized;
-};
+ int fd;
+ audio_sample_format_t format;
+ bool starting;
-#define FRAME_SIZE 2048
-#define A52_FRAME_NB 1536
+ bool mute;
+ uint8_t level;
+ char *device;
+};
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int Open ( vlc_object_t * );
-static void Close ( vlc_object_t * );
+static int Open (vlc_object_t *);
+static void Close (vlc_object_t *);
+
+#define AUDIO_DEV_TEXT N_("Audio output device")
+#define AUDIO_DEV_LONGTEXT N_("OSS device node path.")
+
+vlc_module_begin ()
+ set_shortname( "OSS" )
+ set_description (N_("Open Sound System audio output"))
+ set_category( CAT_AUDIO )
+ set_subcategory( SUBCAT_AUDIO_AOUT )
+ add_string ("oss-audio-device", "",
+ AUDIO_DEV_TEXT, AUDIO_DEV_LONGTEXT, false)
+ set_capability( "audio output", 100 )
+ set_callbacks (Open, Close)
+vlc_module_end ()
+
+static int TimeGet (audio_output_t *, mtime_t *);
+static void Play (audio_output_t *, block_t *);
+static void Pause (audio_output_t *, bool, mtime_t);
+static void Flush (audio_output_t *, bool);
+static int VolumeSync (audio_output_t *);
+
+static int Start (audio_output_t *aout, audio_sample_format_t *restrict fmt)
+{
+ aout_sys_t* sys = aout->sys;
-static int SetFormat ( aout_instance_t * );
-static void Play ( aout_instance_t * );
-static int OSSThread ( aout_instance_t * );
+ /* Open the device */
+ const char *device = sys->device;
+ if (device == NULL)
+ device = getenv ("OSS_AUDIODEV");
+ if (device == NULL)
+ device = "/dev/dsp";
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-vlc_module_begin();
- add_category_hint( N_("OSS"), NULL );
- add_file( "dspdev", "/dev/dsp", NULL, N_("OSS dsp device"), NULL );
- set_description( _("Linux OSS /dev/dsp module") );
- set_capability( "audio output", 100 );
- set_callbacks( Open, Close );
-vlc_module_end();
+ int fd = vlc_open (device, O_WRONLY);
+ if (fd == -1)
+ {
+ msg_Err (aout, "cannot open OSS device %s: %m", device);
+ return VLC_EGENERIC;
+ }
+ sys->fd = fd;
+ msg_Dbg (aout, "using OSS device: %s", device);
-/*****************************************************************************
- * Open: open the audio device (the digital sound processor)
- *****************************************************************************
- * This function opens the dsp as a usual non-blocking write-only file, and
- * modifies the p_aout->p_sys->i_fd with the file's descriptor.
- *****************************************************************************/
-static int Open( vlc_object_t *p_this )
-{
- aout_instance_t * p_aout = (aout_instance_t *)p_this;
- struct aout_sys_t * p_sys;
- char * psz_device;
+ /* Select audio format */
+ int format;
+ bool spdif = false;
- /* Allocate structure */
- p_aout->output.p_sys = p_sys = malloc( sizeof( aout_sys_t ) );
- if( p_sys == NULL )
+ switch (fmt->i_format)
{
- msg_Err( p_aout, "out of memory" );
- return 1;
+#ifdef AFMT_FLOAT
+ case VLC_CODEC_FL64:
+ case VLC_CODEC_FL32:
+ format = AFMT_FLOAT;
+ break;
+#endif
+ case VLC_CODEC_S32N:
+ format = AFMT_S32_NE;
+ break;
+ case VLC_CODEC_S16N:
+ format = AFMT_S16_NE;
+ break;
+ case VLC_CODEC_U8:
+ format = AFMT_U8;
+ break;
+ default:
+ if (AOUT_FMT_SPDIF(fmt))
+ spdif = var_InheritBool (aout, "spdif");
+ if (spdif)
+ format = AFMT_AC3;
+#ifdef AFMT_FLOAT
+ else if (HAVE_FPU)
+ format = AFMT_FLOAT;
+#endif
+ else
+ format = AFMT_S16_NE;
}
- /* Initialize some variables */
- if( (psz_device = config_GetPsz( p_aout, "dspdev" )) == NULL )
+ if (ioctl (fd, SNDCTL_DSP_SETFMT, &format) < 0)
{
- msg_Err( p_aout, "no audio device given (maybe /dev/dsp ?)" );
- free( p_sys );
- return -1;
+ msg_Err (aout, "cannot set audio format 0x%X: %m", format);
+ goto error;
}
- /* Open the sound device */
- if( (p_sys->i_fd = open( psz_device, O_WRONLY )) < 0 )
+ switch (format)
{
- msg_Err( p_aout, "cannot open audio device (%s)", psz_device );
- free( psz_device );
- free( p_sys );
- return -1;
+ case AFMT_U8: fmt->i_format = VLC_CODEC_U8; break;
+ case AFMT_S16_NE: fmt->i_format = VLC_CODEC_S16N; break;
+ case AFMT_S32_NE: fmt->i_format = VLC_CODEC_S32N; break;
+#ifdef AFMT_FLOAT
+ case AFMT_FLOAT: fmt->i_format = VLC_CODEC_FL32; break;
+#endif
+ case AFMT_AC3:
+ if (spdif)
+ {
+ fmt->i_format = VLC_CODEC_SPDIFL;
+ break;
+ }
+ default:
+ msg_Err (aout, "unsupported audio format 0x%X", format);
+ goto error;
}
- free( psz_device );
- /* Create OSS thread and wait for its readiness. */
- p_sys->b_initialized = VLC_FALSE;
- if( vlc_thread_create( p_aout, "aout", OSSThread, VLC_FALSE ) )
+ /* Select channels count */
+ int channels = spdif ? 2 : aout_FormatNbChannels (fmt);
+ if (ioctl (fd, SNDCTL_DSP_CHANNELS, &channels) < 0)
{
- msg_Err( p_aout, "cannot create OSS thread (%s)", strerror(errno) );
- close( p_sys->i_fd );
- free( psz_device );
- free( p_sys );
- return -1;
+ msg_Err (aout, "cannot set %d channels: %m", channels);
+ goto error;
}
- p_aout->output.pf_setformat = SetFormat;
- p_aout->output.pf_play = Play;
-
- return 0;
-}
-
-/*****************************************************************************
- * SetFormat: reset the dsp and set its format
- *****************************************************************************
- * This functions resets the DSP device, tries to initialize the output
- * format with the value contained in the dsp structure, and if this value
- * could not be set, the default value returned by ioctl is set. It then
- * does the same for the stereo mode, and for the output rate.
- *****************************************************************************/
-static int SetFormat( aout_instance_t *p_aout )
-{
- struct aout_sys_t * p_sys = p_aout->output.p_sys;
- int i_format;
- int i_rate;
- vlc_bool_t b_stereo;
-
- p_sys->b_initialized = VLC_FALSE;
+ switch (channels)
+ {
+ case 1: channels = AOUT_CHAN_CENTER; break;
+ case 2: channels = AOUT_CHANS_STEREO; break;
+ case 4: channels = AOUT_CHANS_4_0; break;
+ case 6: channels = AOUT_CHANS_5_1; break;
+ case 8: channels = AOUT_CHANS_7_1; break;
+ default:
+ msg_Err (aout, "unsupported channels count %d", channels);
+ goto error;
+ }
- /* Reset the DSP device */
- if( ioctl( p_sys->i_fd, SNDCTL_DSP_RESET, NULL ) < 0 )
+ /* Select sample rate */
+ int rate = spdif ? 48000 : fmt->i_rate;
+ if (ioctl (fd, SNDCTL_DSP_SPEED, &rate) < 0)
{
- msg_Err( p_aout, "cannot reset OSS audio device" );
- return -1;
+ msg_Err (aout, "cannot set %d Hz sample rate: %m", rate);
+ goto error;
}
- /* Set the output format */
- if ( p_aout->output.output.i_format == AOUT_FMT_SPDIF )
+ /* Setup audio_output_t */
+ aout->time_get = TimeGet;
+ aout->play = Play;
+ aout->pause = Pause;
+ aout->flush = Flush;
+
+ if (spdif)
{
- i_format = AOUT_FMT_SPDIF;
- p_aout->output.i_nb_samples = A52_FRAME_NB;
- p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
- p_aout->output.output.i_frame_length = A52_FRAME_NB;
+ fmt->i_bytes_per_frame = AOUT_SPDIF_SIZE;
+ fmt->i_frame_length = A52_FRAME_NB;
}
else
{
- p_aout->output.output.i_format = i_format = AOUT_FMT_S16_NE;
- p_aout->output.i_nb_samples = FRAME_SIZE;
+ fmt->i_rate = rate;
+ fmt->i_original_channels =
+ fmt->i_physical_channels = channels;
}
- if( ioctl( p_sys->i_fd, SNDCTL_DSP_SETFMT, &i_format ) < 0
- || i_format != p_aout->output.output.i_format )
+ VolumeSync (aout);
+ sys->starting = true;
+ sys->format = *fmt;
+ return VLC_SUCCESS;
+error:
+ close (fd);
+ return VLC_EGENERIC;
+}
+
+static int TimeGet (audio_output_t *aout, mtime_t *restrict pts)
+{
+ aout_sys_t *sys = aout->sys;
+ int delay;
+
+ if (ioctl (sys->fd, SNDCTL_DSP_GETODELAY, &delay) < 0)
{
- msg_Err( p_aout, "cannot set audio output format (%i)",
- i_format );
+ msg_Warn (aout, "cannot get delay: %m");
return -1;
}
- if ( p_aout->output.output.i_format != AOUT_FMT_SPDIF )
+ *pts = (delay * CLOCK_FREQ * sys->format.i_frame_length)
+ / (sys->format.i_rate * sys->format.i_bytes_per_frame);
+ return 0;
+}
+
+/**
+ * Queues one audio buffer to the hardware.
+ */
+static void Play (audio_output_t *aout, block_t *block)
+{
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
+
+ while (block->i_buffer > 0)
{
- /* FIXME */
- if ( p_aout->output.output.i_channels > 2 )
+ ssize_t bytes = write (fd, block->p_buffer, block->i_buffer);
+ if (bytes >= 0)
{
- msg_Warn( p_aout, "only two channels are supported at the moment" );
- /* Trigger downmixing */
- p_aout->output.output.i_channels = 2;
+ block->p_buffer += bytes;
+ block->i_buffer -= bytes;
}
+ else
+ msg_Err (aout, "cannot write samples: %m");
+ }
+ block_Release (block);
- /* Set the number of channels */
- b_stereo = p_aout->output.output.i_channels - 1;
+ /* Dumb OSS cannot send any kind of events for this... */
+ VolumeSync (aout);
+}
- if( ioctl( p_sys->i_fd, SNDCTL_DSP_STEREO, &b_stereo ) < 0 )
- {
- msg_Err( p_aout, "cannot set number of audio channels (%i)",
- p_aout->output.output.i_channels );
- return -1;
- }
+/**
+ * Pauses/resumes the audio playback.
+ */
+static void Pause (audio_output_t *aout, bool pause, mtime_t date)
+{
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
- if ( b_stereo + 1 != p_aout->output.output.i_channels )
- {
- msg_Warn( p_aout, "driver forced up/downmixing %li->%li",
- p_aout->output.output.i_channels,
- b_stereo + 1 );
- p_aout->output.output.i_channels = b_stereo + 1;
- }
+ (void) date;
+ ioctl (fd, pause ? SNDCTL_DSP_SILENCE : SNDCTL_DSP_SKIP, NULL);
+}
- /* Set the output rate */
- i_rate = p_aout->output.output.i_rate;
- if( ioctl( p_sys->i_fd, SNDCTL_DSP_SPEED, &i_rate ) < 0 )
- {
- msg_Err( p_aout, "cannot set audio output rate (%i)",
- p_aout->output.output.i_rate );
- return -1;
- }
+/**
+ * Flushes/drains the audio playback buffer.
+ */
+static void Flush (audio_output_t *aout, bool wait)
+{
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
- if( i_rate != p_aout->output.output.i_rate )
- {
- msg_Warn( p_aout, "driver forced resampling %li->%li",
- p_aout->output.output.i_rate, i_rate );
- p_aout->output.output.i_rate = i_rate;
- }
- }
+ if (wait)
+ return; /* drain is implicit with OSS */
+ ioctl (fd, SNDCTL_DSP_HALT_OUTPUT, NULL);
+}
+
+static int VolumeSync (audio_output_t *aout)
+{
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
- p_sys->b_initialized = VLC_TRUE;
+ int level;
+ if (ioctl (fd, SNDCTL_DSP_GETPLAYVOL, &level) < 0)
+ return -1;
+ sys->mute = !level;
+ if (level) /* try to keep last volume before mute */
+ sys->level = level;
+ aout_MuteReport (aout, !level);
+ aout_VolumeReport (aout, (float)(level & 0xFF) / 100.f);
return 0;
}
-/*****************************************************************************
- * Play: queue a buffer for playing by OSSThread
- *****************************************************************************/
-static void Play( aout_instance_t *p_aout )
+/**
+ * Releases the audio output device.
+ */
+static void Stop (audio_output_t *aout)
{
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
+
+ ioctl (fd, SNDCTL_DSP_HALT, NULL);
+ close (fd);
+ sys->fd = -1;
}
-/*****************************************************************************
- * Close: close the dsp audio device
- *****************************************************************************/
-static void Close( vlc_object_t * p_this )
+static int VolumeSet (audio_output_t *aout, float vol)
{
- aout_instance_t *p_aout = (aout_instance_t *)p_this;
- struct aout_sys_t * p_sys = p_aout->output.p_sys;
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
+ if (fd == -1)
+ return -1;
- p_aout->b_die = 1;
- vlc_thread_join( p_aout );
+ int level = lroundf (vol * 100.f);
+ if (level > 0xFF)
+ level = 0xFFFF;
+ else
+ level |= level << 8;
+ if (!sys->mute && ioctl (fd, SNDCTL_DSP_SETPLAYVOL, &level) < 0)
+ {
+ msg_Err (aout, "cannot set volume: %m");
+ return -1;
+ }
- close( p_sys->i_fd );
- free( p_sys );
+ sys->level = level;
+ aout_VolumeReport (aout, (float)(level & 0xFF) / 100.f);
+ return 0;
}
-
-/*****************************************************************************
- * GetBufInfo: buffer status query
- *****************************************************************************
- * This function fills in the audio_buf_info structure :
- * - returns : number of available fragments (not partially used ones)
- * - int fragstotal : total number of fragments allocated
- * - int fragsize : size of a fragment in bytes
- * - int bytes : available space in bytes (includes partially used fragments)
- * Note! 'bytes' could be more than fragments*fragsize
- *****************************************************************************/
-static int GetBufInfo( aout_instance_t * p_aout )
+static int MuteSet (audio_output_t *aout, bool mute)
{
- struct aout_sys_t * p_sys = p_aout->output.p_sys;
- audio_buf_info audio_buf;
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
+ if (fd == -1)
+ return -1;
- ioctl( p_sys->i_fd, SNDCTL_DSP_GETOSPACE, &audio_buf );
+ int level = mute ? 0 : (sys->level | (sys->level << 8));
+ if (ioctl (fd, SNDCTL_DSP_SETPLAYVOL, &level) < 0)
+ {
+ msg_Err (aout, "cannot mute: %m");
+ return -1;
+ }
- /* returns the allocated space in bytes */
- return ( (audio_buf.fragstotal * audio_buf.fragsize) - audio_buf.bytes );
+ sys->mute = mute;
+ aout_MuteReport (aout, mute);
+ return 0;
}
-/*****************************************************************************
- * OSSThread: asynchronous thread used to DMA the data to the device
- *****************************************************************************/
-static int OSSThread( aout_instance_t * p_aout )
+static int DevicesEnum (audio_output_t *aout, char ***idp, char ***namep)
{
- struct aout_sys_t * p_sys = p_aout->output.p_sys;
+ aout_sys_t *sys = aout->sys;
+ int fd = sys->fd;
+ oss_sysinfo si;
- while ( !p_aout->b_die )
+ if (fd == -1)
+ return -1;
+ if (ioctl (fd, SNDCTL_SYSINFO, &si) < 0)
{
- aout_buffer_t * p_buffer;
- int i_tmp, i_size;
- byte_t * p_bytes;
+ msg_Err (aout, "cannot get system infos: %m");
+ return -1;
+ }
- if( !p_sys->b_initialized )
- {
- msleep( THREAD_SLEEP );
- continue;
- }
+ msg_Dbg (aout, "using %s version %s (0x%06X) under %s", si.product,
+ si.version, si.versionnum, si.license);
- if ( p_aout->output.output.i_format != AOUT_FMT_SPDIF )
- {
- mtime_t next_date = 0;
- /* Get the presentation date of the next write() operation. It
- * is equal to the current date + duration of buffered samples.
- * Order is important here, since GetBufInfo is believed to take
- * more time than mdate(). */
- next_date = (mtime_t)GetBufInfo( p_aout ) * 100000
- / p_aout->output.output.i_bytes_per_frame
- / p_aout->output.output.i_rate
- * p_aout->output.output.i_frame_length;
- next_date += mdate();
-
- p_buffer = aout_OutputNextBuffer( p_aout, next_date, VLC_FALSE );
- }
- else
- {
- p_buffer = aout_OutputNextBuffer( p_aout, 0, VLC_TRUE );
- }
+ char **ids = xmalloc (sizeof (*ids) * si.numaudios);
+ char **names = xmalloc (sizeof (*names) * si.numaudios);
+ int n = 0;
- if ( p_buffer != NULL )
- {
- p_bytes = p_buffer->p_buffer;
- i_size = p_buffer->i_nb_bytes;
- }
- else
+ for (int i = 0; i < si.numaudios; i++)
+ {
+ oss_audioinfo ai = { .dev = i };
+
+ if (ioctl (fd, SNDCTL_AUDIOINFO, &ai) < 0)
{
- i_size = FRAME_SIZE / p_aout->output.output.i_frame_length
- * p_aout->output.output.i_bytes_per_frame;
- p_bytes = alloca( i_size );
- memset( p_bytes, 0, i_size );
+ msg_Warn (aout, "cannot get device %d infos: %m", i);
+ continue;
}
+ if (ai.caps & (PCM_CAP_HIDDEN|PCM_CAP_MODEM))
+ continue;
+ if (!(ai.caps & PCM_CAP_OUTPUT))
+ continue;
+ if (!ai.enabled)
+ continue;
- i_tmp = write( p_sys->i_fd, p_bytes, i_size );
+ ids[n] = xstrdup (ai.devnode);
+ names[n] = xstrdup (ai.name);
+ n++;
+ }
+ *idp = ids;
+ *namep = names;
+ return n;
+}
- if( i_tmp < 0 )
- {
- msg_Err( p_aout, "write failed (%s)", strerror(errno) );
- }
+static int DeviceSelect (audio_output_t *aout, const char *id)
+{
+ aout_sys_t *sys = aout->sys;
+ char *path = NULL;
- if ( p_buffer != NULL )
- {
- aout_BufferFree( p_buffer );
- }
+ if (id != NULL)
+ {
+ path = strdup (id);
+ if (unlikely(path == NULL))
+ return -1;
}
+ free (sys->device);
+ sys->device = path;
+ aout_DeviceReport (aout, path);
+ aout_RestartRequest (aout, AOUT_RESTART_OUTPUT);
return 0;
}
+
+static int Open (vlc_object_t *obj)
+{
+ audio_output_t *aout = (audio_output_t *)obj;
+
+ aout_sys_t *sys = malloc (sizeof (*sys));
+ if(unlikely( sys == NULL ))
+ return VLC_ENOMEM;
+
+ sys->fd = -1;
+
+ sys->level = 100;
+ sys->mute = false;
+ sys->device = var_InheritString (aout, "oss-audio-device");
+
+ aout->sys = sys;
+ aout->start = Start;
+ aout->stop = Stop;
+ aout->volume_set = VolumeSet;
+ aout->mute_set = MuteSet;
+ aout->device_enum = DevicesEnum;
+ aout->device_select = DeviceSelect;
+ return VLC_SUCCESS;
+}
+
+static void Close (vlc_object_t *obj)
+{
+ audio_output_t *aout = (audio_output_t *)obj;
+ aout_sys_t *sys = aout->sys;
+
+ free (sys->device);
+ free (sys);
+}