aout_instance_t * p_aout;
/* Allocate descriptor. */
- p_aout = vlc_object_create( p_parent, VLC_OBJECT_AOUT );
+ p_aout = vlc_custom_create( p_parent, sizeof( *p_aout ), VLC_OBJECT_AOUT,
+ "audio output" );
if( p_aout == NULL )
{
return NULL;
/* Initialize members. */
vlc_mutex_init( &p_aout->input_fifos_lock );
vlc_mutex_init( &p_aout->mixer_lock );
+ vlc_mutex_init( &p_aout->volume_vars_lock );
vlc_mutex_init( &p_aout->output_fifo_lock );
p_aout->i_nb_inputs = 0;
p_aout->mixer_multiplier = 1.0;
aout_instance_t * p_aout = (aout_instance_t *)p_this;
vlc_mutex_destroy( &p_aout->input_fifos_lock );
vlc_mutex_destroy( &p_aout->mixer_lock );
+ vlc_mutex_destroy( &p_aout->volume_vars_lock );
vlc_mutex_destroy( &p_aout->output_fifo_lock );
}
+/* Lock ordering rules:
+ *
+ * Vars Mixer Input IFIFO OFIFO (< Inner lock)
+ * Vars No! Yes Yes Yes Yes
+ * Mixer No! No! Yes Yes Yes
+ * Input No! No! No! Yes Yes
+ * In FIFOs No! No! No! No! Yes
+ * Out FIFOs No! No! No! No! No!
+ * (^ Outer lock)
+ */
+#ifdef AOUT_DEBUG
+/* Lock debugging */
+static __thread unsigned aout_locks = 0;
+
+void aout_lock (unsigned i)
+{
+ unsigned allowed;
+ switch (i)
+ {
+ case VOLUME_VARS_LOCK:
+ allowed = 0;
+ break;
+ case MIXER_LOCK:
+ allowed = VOLUME_VARS_LOCK;
+ break;
+ case INPUT_LOCK:
+ allowed = VOLUME_VARS_LOCK|MIXER_LOCK;
+ break;
+ case INPUT_FIFO_LOCK:
+ allowed = VOLUME_VARS_LOCK|MIXER_LOCK|INPUT_LOCK;
+ break;
+ case OUTPUT_FIFO_LOCK:
+ allowed = VOLUME_VARS_LOCK|MIXER_LOCK|INPUT_LOCK|INPUT_FIFO_LOCK;
+ break;
+ default:
+ abort ();
+ }
+
+ if (aout_locks & ~allowed)
+ {
+ fprintf (stderr, "Illegal audio lock transition (%x -> %x)\n",
+ aout_locks, aout_locks|i);
+ vlc_backtrace ();
+ abort ();
+ }
+ aout_locks |= i;
+}
+
+void aout_unlock (unsigned i)
+{
+ assert (aout_locks & i);
+ aout_locks &= ~i;
+}
+#endif
/*
* Formats management (internal and external)
case VLC_CODEC_S32L:
case VLC_CODEC_S32B:
- case VLC_CODEC_FL32:
+ case VLC_CODEC_F32L:
+ case VLC_CODEC_F32B:
case VLC_CODEC_FI32:
return 32;
- case VLC_CODEC_FL64:
+ case VLC_CODEC_F64L:
+ case VLC_CODEC_F64B:
return 64;
default:
*****************************************************************************/
void aout_FormatPrepare( audio_sample_format_t * p_format )
{
+ p_format->i_channels = aout_FormatNbChannels( p_format );
p_format->i_bitspersample = aout_BitsPerSample( p_format->i_format );
if( p_format->i_bitspersample > 0 )
{
/* Enforce the continuity of the stream. */
if ( date_Get( &p_fifo->end_date ) )
{
- p_buffer->start_date = date_Get( &p_fifo->end_date );
- p_buffer->end_date = date_Increment( &p_fifo->end_date,
+ p_buffer->i_pts = date_Get( &p_fifo->end_date );
+ p_buffer->i_length = date_Increment( &p_fifo->end_date,
p_buffer->i_nb_samples );
+ p_buffer->i_length -= p_buffer->i_pts;
}
else
{
- date_Set( &p_fifo->end_date, p_buffer->end_date );
+ date_Set( &p_fifo->end_date, p_buffer->i_pts + p_buffer->i_length );
}
}
p_buffer = p_fifo->p_first;
while ( p_buffer != NULL )
{
- p_buffer->start_date += difference;
- p_buffer->end_date += difference;
+ p_buffer->i_pts += difference;
p_buffer = p_buffer->p_next;
}
}
{
(void)p_aout;
AOUT_ASSERT_FIFO_LOCKED;
- return p_fifo->p_first ? p_fifo->p_first->start_date : 0;
+ return p_fifo->p_first ? p_fifo->p_first->i_pts : 0;
}
/*****************************************************************************
return old_buffer;
}
- aout_buffer_t *buffer;
- int i_alloc_size;
-
- i_alloc_size = (int)( (uint64_t)allocation->i_bytes_per_sec
+ size_t i_alloc_size = (int)( (uint64_t)allocation->i_bytes_per_sec
* (microseconds) / 1000000 + 1 );
- buffer = malloc( i_alloc_size + sizeof(aout_buffer_t) );
- if ( !buffer )
- return NULL;
-
- buffer->b_alloc = true;
- buffer->i_size = i_alloc_size;
- buffer->p_buffer = (uint8_t *)buffer + sizeof(aout_buffer_t);
- buffer->b_discontinuity = false;
-
- if ( old_buffer )
- {
- buffer->start_date = old_buffer->start_date;
- buffer->end_date = old_buffer->end_date;
- }
-
- return buffer;
+ return block_Alloc( i_alloc_size );
}