/*****************************************************************************
* intf.c : audio output API towards the interface modules
*****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: intf.c,v 1.4 2002/09/26 22:40:25 massiot Exp $
+ * Copyright (C) 2002-2007 the VideoLAN team
+ * $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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
*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+
+#include <stdio.h>
#include <stdlib.h> /* calloc(), malloc(), free() */
#include <string.h>
-#include <vlc/vlc.h>
-
-#include "audio_output.h"
+#include <vlc_aout.h>
#include "aout_internal.h"
-
/*
* Volume management
*
* mixer is running, so we need the mixer lock (too).
*
* Here is a schematic of the i_volume range :
- *
+ *
* |------------------------------+---------------------------------------|
* 0 pi_soft 1024
*
* a very low volume and users may complain.
*/
+enum {
+ SET_MUTE=1,
+ SET_VOLUME=2,
+ INCREMENT_VOLUME=4,
+ TOGGLE_MUTE=8
+};
/*****************************************************************************
- * aout_VolumeGet : get the volume of the output device
+ * doVolumeChanges : handle all volume changes. Internal use only to ease
+ * variables locking.
*****************************************************************************/
-int aout_VolumeGet( aout_instance_t * p_aout, audio_volume_t * pi_volume )
+int doVolumeChanges( unsigned action, vlc_object_t * p_object, int i_nb_steps,
+ audio_volume_t i_volume, audio_volume_t * i_return_volume,
+ bool b_mute )
{
- int i_result;
-
- vlc_mutex_lock( &p_aout->mixer_lock );
+ int i_result = VLC_SUCCESS;
+ int i_volume_step = 1;
+ bool b_var_mute = false;
+ aout_instance_t *p_aout = vlc_object_find( p_object, VLC_OBJECT_AOUT,
+ FIND_ANYWHERE );
+
+ if ( p_aout ) aout_lock_volume( p_aout );
+
+ b_var_mute = (bool)var_GetBool( p_object->p_libvlc, "volume-muted");
+
+ const bool b_unmute_condition = ( /* Also unmute on increments */
+ ( action == INCREMENT_VOLUME )
+ || /* On explicit unmute */
+ ( ( action == SET_MUTE ) && ( b_var_mute && !b_mute ) )
+ || /* On toggle from muted */
+ ( ( action == TOGGLE_MUTE ) && b_var_mute ) );
+
+ const bool b_mute_condition = ( !b_var_mute
+ && ( /* explicit */
+ ( ( action == SET_MUTE ) && b_mute )
+ || /* or toggle */
+ ( action == TOGGLE_MUTE )
+ ));
+
+ /* On UnMute */
+ if ( b_unmute_condition )
+ {
+ /* Restore saved volume */
+ var_Create( p_object->p_libvlc, "saved-volume", VLC_VAR_INTEGER );
+ i_volume = (audio_volume_t)var_GetInteger( p_object->p_libvlc,
+ "saved-volume" );
+ var_SetBool( p_object->p_libvlc, "volume-muted", false );
+ }
+ else if ( b_mute_condition )
+ {
+ /* We need an initial value to backup later */
+ i_volume = config_GetInt( p_object, "volume" );
+ }
- if ( p_aout->mixer.b_error )
+ if ( action == INCREMENT_VOLUME )
{
- /* The output module is destroyed. */
- vlc_mutex_unlock( &p_aout->mixer_lock );
- msg_Err( p_aout, "VolumeGet called without output module" );
- return -1;
+ i_volume_step = config_GetInt( p_object->p_libvlc, "volume-step" );
+
+ if ( !b_unmute_condition )
+ i_volume = config_GetInt( p_object, "volume" );
+ i_volume += i_volume_step * i_nb_steps;
+
+ if ( i_volume > AOUT_VOLUME_MAX )
+ i_volume = AOUT_VOLUME_MAX;
+ else if ( i_volume < AOUT_VOLUME_MIN )
+ i_volume = AOUT_VOLUME_MIN;
+ if ( i_return_volume != NULL )
+ *i_return_volume = i_volume;
}
- i_result = p_aout->output.pf_volume_get( p_aout, pi_volume );
+ var_Create( p_object->p_libvlc, "saved-volume", VLC_VAR_INTEGER );
+ var_SetInteger( p_object->p_libvlc, "saved-volume" , i_volume );
- vlc_mutex_unlock( &p_aout->mixer_lock );
- return i_result;
-}
-
-/*****************************************************************************
- * aout_VolumeSet : set the volume of the output device
- *****************************************************************************/
-int aout_VolumeSet( aout_instance_t * p_aout, audio_volume_t i_volume )
-{
- int i_result;
+ /* On Mute */
+ if ( b_mute_condition )
+ {
+ i_volume = AOUT_VOLUME_MIN;
+ var_SetBool( p_object->p_libvlc, "volume-muted", true );
+ }
- vlc_mutex_lock( &p_aout->mixer_lock );
+ /* Commit volume changes */
+ config_PutInt( p_object, "volume", i_volume );
- if ( p_aout->mixer.b_error )
+ if ( p_aout )
{
- /* The output module is destroyed. */
- vlc_mutex_unlock( &p_aout->mixer_lock );
- msg_Err( p_aout, "VolumeSet called without output module" );
- return -1;
+ aout_lock_mixer( p_aout );
+ aout_lock_input_fifos( p_aout );
+ if ( p_aout->p_mixer )
+ i_result = p_aout->output.pf_volume_set( p_aout, i_volume );
+ aout_unlock_input_fifos( p_aout );
+ aout_unlock_mixer( p_aout );
}
- i_result = p_aout->output.pf_volume_set( p_aout, i_volume );
+ /* trigger callbacks */
+ var_TriggerCallback( p_object->p_libvlc, "volume-change");
+ if ( p_aout ) var_SetBool( p_aout, "intf-change", true );
+
+ if ( p_aout )
+ {
+ aout_unlock_volume( p_aout );
+ vlc_object_release( p_aout );
+ }
- vlc_mutex_unlock( &p_aout->mixer_lock );
return i_result;
}
/*****************************************************************************
- * aout_VolumeInfos : get the boundaries pi_low_soft and pi_high_soft
+ * aout_VolumeGet : get the volume of the output device
*****************************************************************************/
-int aout_VolumeInfos( aout_instance_t * p_aout, audio_volume_t * pi_soft )
+int __aout_VolumeGet( vlc_object_t * p_object, audio_volume_t * pi_volume )
{
- int i_result;
+ int i_result = 0;
+ aout_instance_t * p_aout = vlc_object_find( p_object, VLC_OBJECT_AOUT,
+ FIND_ANYWHERE );
- vlc_mutex_lock( &p_aout->mixer_lock );
+ if ( pi_volume == NULL ) return -1;
- if ( p_aout->mixer.b_error )
+ if ( p_aout == NULL )
{
- /* The output module is destroyed. */
- vlc_mutex_unlock( &p_aout->mixer_lock );
- msg_Err( p_aout, "VolumeInfos called without output module" );
- return -1;
+ *pi_volume = (audio_volume_t)config_GetInt( p_object, "volume" );
+ return 0;
}
- i_result = p_aout->output.pf_volume_infos( p_aout, pi_soft );
+ aout_lock_volume( p_aout );
+ aout_lock_mixer( p_aout );
+ if ( p_aout->p_mixer )
+ {
+ i_result = p_aout->output.pf_volume_get( p_aout, pi_volume );
+ }
+ else
+ {
+ *pi_volume = (audio_volume_t)config_GetInt( p_object, "volume" );
+ }
+ aout_unlock_mixer( p_aout );
+ aout_unlock_volume( p_aout );
- vlc_mutex_unlock( &p_aout->mixer_lock );
+ vlc_object_release( p_aout );
return i_result;
}
+/*****************************************************************************
+ * aout_VolumeSet : set the volume of the output device
+ *****************************************************************************/
+int __aout_VolumeSet( vlc_object_t * p_object, audio_volume_t i_volume )
+{
+ return doVolumeChanges( SET_VOLUME, p_object, 1, i_volume, NULL, true );
+}
+
/*****************************************************************************
* aout_VolumeUp : raise the output volume
*****************************************************************************
* If pi_volume != NULL, *pi_volume will contain the volume at the end of the
* function.
*****************************************************************************/
-int aout_VolumeUp( aout_instance_t * p_aout, int i_nb_steps,
+int __aout_VolumeUp( vlc_object_t * p_object, int i_nb_steps,
audio_volume_t * pi_volume )
{
- int i_result;
- audio_volume_t i_volume;
-
- vlc_mutex_lock( &p_aout->mixer_lock );
-
- if ( p_aout->mixer.b_error )
- {
- /* The output module is destroyed. */
- vlc_mutex_unlock( &p_aout->mixer_lock );
- msg_Err( p_aout, "VolumeUp called without output module" );
- return -1;
- }
-
- if ( p_aout->output.pf_volume_get( p_aout, &i_volume ) )
- {
- vlc_mutex_unlock( &p_aout->mixer_lock );
- return -1;
- }
-
- i_volume += AOUT_VOLUME_STEP * i_nb_steps;
- if ( i_volume > 1024 ) i_volume = 1024;
-
- i_result = p_aout->output.pf_volume_set( p_aout, i_volume );
-
- vlc_mutex_unlock( &p_aout->mixer_lock );
-
- if ( pi_volume != NULL ) *pi_volume = i_volume;
- return i_result;
+ return doVolumeChanges( INCREMENT_VOLUME, p_object, i_nb_steps, 0, pi_volume, true );
}
/*****************************************************************************
* If pi_volume != NULL, *pi_volume will contain the volume at the end of the
* function.
*****************************************************************************/
-int aout_VolumeDown( aout_instance_t * p_aout, int i_nb_steps,
+int __aout_VolumeDown( vlc_object_t * p_object, int i_nb_steps,
audio_volume_t * pi_volume )
{
- int i_result;
- audio_volume_t i_volume;
-
- vlc_mutex_lock( &p_aout->mixer_lock );
-
- if ( p_aout->mixer.b_error )
- {
- /* The output module is destroyed. */
- vlc_mutex_unlock( &p_aout->mixer_lock );
- msg_Err( p_aout, "VolumeUp called without output module" );
- return -1;
- }
-
- if ( p_aout->output.pf_volume_get( p_aout, &i_volume ) )
- {
- vlc_mutex_unlock( &p_aout->mixer_lock );
- return -1;
- }
-
- if ( i_volume < AOUT_VOLUME_STEP * i_nb_steps )
- i_volume = 0;
- else
- i_volume -= AOUT_VOLUME_STEP * i_nb_steps;
+ return __aout_VolumeUp( p_object, -i_nb_steps, pi_volume );
+}
- i_result = p_aout->output.pf_volume_set( p_aout, i_volume );
+/*****************************************************************************
+ * aout_ToggleMute : Mute/un-mute the output volume
+ *****************************************************************************
+ * If pi_volume != NULL, *pi_volume will contain the volume at the end of the
+ * function (muted => 0).
+ *****************************************************************************/
+int __aout_ToggleMute( vlc_object_t * p_object, audio_volume_t * pi_volume )
+{
+ return doVolumeChanges( TOGGLE_MUTE, p_object, 1, 0, pi_volume, true );
+}
- vlc_mutex_unlock( &p_aout->mixer_lock );
+/*****************************************************************************
+ * aout_IsMuted : Get the output volume mute status
+ *****************************************************************************/
+bool aout_IsMuted( vlc_object_t * p_object )
+{
+ bool b_return_val;
+ aout_instance_t * p_aout = vlc_object_find( p_object, VLC_OBJECT_AOUT,
+ FIND_ANYWHERE );
+ if ( p_aout ) aout_lock_volume( p_aout );
+ b_return_val = var_GetBool( p_object->p_libvlc, "volume-muted");
+ if ( p_aout ) aout_unlock_volume( p_aout );
+ return b_return_val;
+}
- if ( pi_volume != NULL ) *pi_volume = i_volume;
- return i_result;
+/*****************************************************************************
+ * aout_SetMute : Sets mute status
+ *****************************************************************************
+ * If pi_volume != NULL, *pi_volume will contain the volume at the end of the
+ * function (muted => 0).
+ *****************************************************************************/
+int aout_SetMute( vlc_object_t * p_object, audio_volume_t * pi_volume,
+ bool b_mute )
+{
+ return doVolumeChanges( SET_MUTE, p_object, 1, 0, pi_volume, b_mute );
}
/*
{
int i_volume;
- p_aout->output.pf_volume_infos = aout_VolumeSoftInfos;
p_aout->output.pf_volume_get = aout_VolumeSoftGet;
p_aout->output.pf_volume_set = aout_VolumeSoftSet;
i_volume = config_GetInt( p_aout, "volume" );
- if ( i_volume == -1 )
+ if ( i_volume < AOUT_VOLUME_MIN )
{
i_volume = AOUT_VOLUME_DEFAULT;
}
+ else if ( i_volume > AOUT_VOLUME_MAX )
+ {
+ i_volume = AOUT_VOLUME_MAX;
+ }
- aout_VolumeSoftSet( p_aout, i_volume );
-}
-
-/* Placeholder for pf_volume_infos(). */
-int aout_VolumeSoftInfos( aout_instance_t * p_aout, audio_volume_t * pi_soft )
-{
- *pi_soft = 0;
- return 0;
+ aout_VolumeSoftSet( p_aout, (audio_volume_t)i_volume );
}
/* Placeholder for pf_volume_get(). */
/* Meant to be called by the output plug-in's Open(). */
void aout_VolumeNoneInit( aout_instance_t * p_aout )
{
- p_aout->output.pf_volume_infos = aout_VolumeNoneInfos;
p_aout->output.pf_volume_get = aout_VolumeNoneGet;
p_aout->output.pf_volume_set = aout_VolumeNoneSet;
}
-/* Placeholder for pf_volume_infos(). */
-int aout_VolumeNoneInfos( aout_instance_t * p_aout, audio_volume_t * pi_soft )
-{
- return -1;
-}
-
/* Placeholder for pf_volume_get(). */
int aout_VolumeNoneGet( aout_instance_t * p_aout, audio_volume_t * pi_volume )
{
+ (void)p_aout; (void)pi_volume;
return -1;
}
/* Placeholder for pf_volume_set(). */
int aout_VolumeNoneSet( aout_instance_t * p_aout, audio_volume_t i_volume )
{
+ (void)p_aout; (void)i_volume;
return -1;
}
* This function is used whenever the parameters of the output plug-in are
* changed (eg. selecting S/PDIF or PCM).
*****************************************************************************/
-int aout_Restart( aout_instance_t * p_aout )
+static int aout_Restart( aout_instance_t * p_aout )
{
int i;
- vlc_bool_t b_error = 0;
+ bool b_error = 0;
- vlc_mutex_lock( &p_aout->mixer_lock );
+ aout_lock_mixer( p_aout );
if ( p_aout->i_nb_inputs == 0 )
{
- vlc_mutex_unlock( &p_aout->mixer_lock );
+ aout_unlock_mixer( p_aout );
msg_Err( p_aout, "no decoder thread" );
return -1;
}
- /* Lock all inputs. */
for ( i = 0; i < p_aout->i_nb_inputs; i++ )
{
- vlc_mutex_lock( &p_aout->pp_inputs[i]->lock );
+ aout_lock_input( p_aout, p_aout->pp_inputs[i] );
+ aout_lock_input_fifos( p_aout );
aout_InputDelete( p_aout, p_aout->pp_inputs[i] );
+ aout_unlock_input_fifos( p_aout );
}
+ /* Lock all inputs. */
+ aout_lock_input_fifos( p_aout );
aout_MixerDelete( p_aout );
/* Re-open the output plug-in. */
aout_OutputDelete( p_aout );
+
if ( aout_OutputNew( p_aout, &p_aout->pp_inputs[0]->input ) == -1 )
{
/* Release all locks and report the error. */
{
vlc_mutex_unlock( &p_aout->pp_inputs[i]->lock );
}
- vlc_mutex_unlock( &p_aout->mixer_lock );
+ aout_unlock_input_fifos( p_aout );
+ aout_unlock_mixer( p_aout );
return -1;
}
{
vlc_mutex_unlock( &p_aout->pp_inputs[i]->lock );
}
- vlc_mutex_unlock( &p_aout->mixer_lock );
+ aout_unlock_input_fifos( p_aout );
+ aout_unlock_mixer( p_aout );
return -1;
}
for ( i = 0; i < p_aout->i_nb_inputs; i++ )
{
aout_input_t * p_input = p_aout->pp_inputs[i];
-
- b_error |= aout_InputNew( p_aout, p_input );
- vlc_mutex_unlock( &p_input->lock );
+ b_error |= aout_InputNew( p_aout, p_input, &p_input->request_vout );
+ p_input->b_changed = 1;
+ aout_unlock_input( p_aout, p_input );
}
- vlc_mutex_unlock( &p_aout->mixer_lock );
+ aout_unlock_input_fifos( p_aout );
+ aout_unlock_mixer( p_aout );
return b_error;
}
+/*****************************************************************************
+ * aout_FindAndRestart : find the audio output instance and restart
+ *****************************************************************************
+ * This is used for callbacks of the configuration variables, and we believe
+ * that when those are changed, it is a significant change which implies
+ * rebuilding the audio-device and audio-channels variables.
+ *****************************************************************************/
+int aout_FindAndRestart( vlc_object_t * p_this, const char *psz_name,
+ vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+ aout_instance_t * p_aout = vlc_object_find( p_this, VLC_OBJECT_AOUT,
+ FIND_ANYWHERE );
+
+ (void)psz_name; (void)oldval; (void)newval; (void)p_data;
+ if ( p_aout == NULL ) return VLC_SUCCESS;
+
+ var_Destroy( p_aout, "audio-device" );
+ var_Destroy( p_aout, "audio-channels" );
+
+ aout_Restart( p_aout );
+ vlc_object_release( p_aout );
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * aout_ChannelsRestart : change the audio device or channels and restart
+ *****************************************************************************/
+int aout_ChannelsRestart( vlc_object_t * p_this, const char * psz_variable,
+ vlc_value_t oldval, vlc_value_t newval,
+ void *p_data )
+{
+ aout_instance_t * p_aout = (aout_instance_t *)p_this;
+ (void)oldval; (void)newval; (void)p_data;
+
+ if ( !strcmp( psz_variable, "audio-device" ) )
+ {
+ /* This is supposed to be a significant change and supposes
+ * rebuilding the channel choices. */
+ var_Destroy( p_aout, "audio-channels" );
+ }
+ aout_Restart( p_aout );
+ return 0;
+}
+
+#undef aout_EnableFilter
+/** Enable or disable an audio filter
+ * \param p_this a vlc object
+ * \param psz_name name of the filter
+ * \param b_add are we adding or removing the filter ?
+ */
+void aout_EnableFilter( vlc_object_t *p_this, const char *psz_name,
+ bool b_add )
+{
+ aout_instance_t *p_aout = vlc_object_find( p_this, VLC_OBJECT_AOUT,
+ FIND_ANYWHERE );
+
+ if( AoutChangeFilterString( p_this, p_aout, "audio-filter", psz_name, b_add ) )
+ {
+ if( p_aout )
+ AoutInputsMarkToRestart( p_aout );
+ }
+
+ if( p_aout )
+ vlc_object_release( p_aout );
+}
projects / vlc / blobdiff