static aout_instance_t *AllocateAout( input_resource_t *p_resource )
{
aout_instance_t *p_aout;
if( unlikely(p_resource->b_aout_busy) )
{
msg_Dbg( p_resource->p_parent, "creating audio output" );
return aout_New( p_resource->p_parent );
}
p_aout = p_resource->p_aout;
if( p_aout == NULL )
{
msg_Dbg( p_resource->p_parent, "creating audio output" );
p_aout = aout_New( p_resource->p_parent );
if( unlikely(p_aout == NULL) )
return NULL;
vlc_mutex_lock( &p_resource->lock_hold );
p_resource->p_aout = p_aout;
vlc_mutex_unlock( &p_resource->lock_hold );
}
else
msg_Dbg( p_resource->p_parent, "recycling audio output" );
p_resource->b_aout_busy = true;
vlc_object_hold( p_aout );
return p_aout;
}
static aout_instance_t *RequestAout( input_resource_t *p_resource, aout_instance_t *p_aout )
{
vlc_assert_locked( &p_resource->lock );
assert( p_resource->p_input );
if( p_aout )
{
msg_Dbg( p_resource->p_parent, "releasing aout" );
vlc_object_release( p_aout );
return NULL;
}
else
{
p_aout = p_resource->p_aout;
if( !p_aout )
{
msg_Dbg( p_resource->p_parent, "creating aout" );
p_aout = aout_New( p_resource->p_parent );
vlc_mutex_lock( &p_resource->lock_hold );
p_resource->p_aout = p_aout;
vlc_mutex_unlock( &p_resource->lock_hold );
}
else
{
msg_Dbg( p_resource->p_parent, "reusing aout" );
}
if( !p_aout )
return NULL;
vlc_object_hold( p_aout );
return p_aout;
}
}
/* Audio output */
audio_output_t *input_resource_GetAout( input_resource_t *p_resource )
{
audio_output_t *p_aout;
vlc_mutex_lock( &p_resource->lock_hold );
p_aout = p_resource->p_aout;
if( p_aout == NULL || p_resource->b_aout_busy )
{
msg_Dbg( p_resource->p_parent, "creating audio output" );
vlc_mutex_unlock( &p_resource->lock_hold );
p_aout = aout_New( p_resource->p_parent );
if( p_aout == NULL )
return NULL; /* failed */
vlc_mutex_lock( &p_resource->lock_hold );
if( p_resource->p_aout == NULL )
p_resource->p_aout = p_aout;
}
else
msg_Dbg( p_resource->p_parent, "reusing audio output" );
if( p_resource->p_aout == p_aout )
{
assert( !p_resource->b_aout_busy );
p_resource->b_aout_busy = true;
}
vlc_mutex_unlock( &p_resource->lock_hold );
return p_aout;
}
aout_input_t * __aout_DecNew( vlc_object_t * p_this,
aout_instance_t ** pp_aout,
audio_sample_format_t * p_format )
{
if ( *pp_aout == NULL )
{
/* Create an audio output if there is none. */
*pp_aout = vlc_object_find( p_this, VLC_OBJECT_AOUT, FIND_ANYWHERE );
if( *pp_aout == NULL )
{
msg_Dbg( p_this, "no aout present, spawning one" );
*pp_aout = aout_New( p_this );
/* Everything failed, I'm a loser, I just wanna die */
if( *pp_aout == NULL )
{
return NULL;
}
vlc_object_attach( *pp_aout, p_this->p_vlc );
}
else
{
vlc_object_release( *pp_aout );
}
}
return DecNew( p_this, *pp_aout, p_format );
}
