/*****************************************************************************
* common.c : audio output management of common data structures
*****************************************************************************
- * Copyright (C) 2002-2005 VideoLAN (Centrale Réseaux) and its contributors
+ * Copyright (C) 2002-2007 the VideoLAN team
* $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* 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
*****************************************************************************/
-#include <stdlib.h> /* calloc(), malloc(), free() */
-#include <string.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include <vlc/vlc.h>
-
-#include "audio_output.h"
+#include <vlc_common.h>
+#include <vlc_aout.h>
#include "aout_internal.h"
-
/*
* Instances management (internal and external)
*/
+/* Local functions */
+static void aout_Destructor( vlc_object_t * p_this );
+
/*****************************************************************************
* aout_New: initialize aout structure
*****************************************************************************/
}
/* Initialize members. */
- vlc_mutex_init( p_parent, &p_aout->input_fifos_lock );
- vlc_mutex_init( p_parent, &p_aout->mixer_lock );
- vlc_mutex_init( p_parent, &p_aout->output_fifo_lock );
+ vlc_mutex_init( &p_aout->input_fifos_lock );
+ vlc_mutex_init( &p_aout->mixer_lock );
+ vlc_mutex_init( &p_aout->output_fifo_lock );
p_aout->i_nb_inputs = 0;
p_aout->mixer.f_multiplier = 1.0;
p_aout->mixer.b_error = 1;
p_aout->output.b_starving = 1;
var_Create( p_aout, "intf-change", VLC_VAR_BOOL );
- val.b_bool = VLC_TRUE;
+ val.b_bool = true;
var_Set( p_aout, "intf-change", val );
+ vlc_object_set_destructor( p_aout, aout_Destructor );
+
return p_aout;
}
/*****************************************************************************
- * aout_Delete: destroy aout structure
+ * aout_Destructor: destroy aout structure
*****************************************************************************/
-void aout_Delete( aout_instance_t * p_aout )
+static void aout_Destructor( vlc_object_t * p_this )
{
- var_Destroy( p_aout, "intf-change" );
-
+ 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->output_fifo_lock );
-
- /* Free structure. */
- vlc_object_destroy( p_aout );
}
}
/*****************************************************************************
- * aout_FormatPrepare : compute the number of bytes per frame & frame length
+ * aout_BitsPerSample : get the number of bits per sample
*****************************************************************************/
-void aout_FormatPrepare( audio_sample_format_t * p_format )
+unsigned int aout_BitsPerSample( vlc_fourcc_t i_format )
{
- int i_result;
-
- switch ( p_format->i_format )
+ switch( i_format )
{
case VLC_FOURCC('u','8',' ',' '):
case VLC_FOURCC('s','8',' ',' '):
- i_result = 1;
- break;
+ return 8;
case VLC_FOURCC('u','1','6','l'):
case VLC_FOURCC('s','1','6','l'):
case VLC_FOURCC('u','1','6','b'):
case VLC_FOURCC('s','1','6','b'):
- i_result = 2;
- break;
+ return 16;
case VLC_FOURCC('u','2','4','l'):
case VLC_FOURCC('s','2','4','l'):
case VLC_FOURCC('u','2','4','b'):
case VLC_FOURCC('s','2','4','b'):
- i_result = 3;
- break;
+ return 24;
case VLC_FOURCC('f','l','3','2'):
case VLC_FOURCC('f','i','3','2'):
- i_result = 4;
- break;
-
- case VLC_FOURCC('s','p','d','i'):
- case VLC_FOURCC('a','5','2',' '):
- case VLC_FOURCC('d','t','s',' '):
- case VLC_FOURCC('m','p','g','a'):
- case VLC_FOURCC('m','p','g','3'):
+ return 32;
+
+ case VLC_FOURCC('f','l','6','4'):
+ return 64;
+
default:
/* For these formats the caller has to indicate the parameters
* by hand. */
- return;
+ return 0;
}
+}
- p_format->i_bytes_per_frame = i_result * aout_FormatNbChannels( p_format );
- p_format->i_frame_length = 1;
+/*****************************************************************************
+ * aout_FormatPrepare : compute the number of bytes per frame & frame length
+ *****************************************************************************/
+void aout_FormatPrepare( audio_sample_format_t * p_format )
+{
+ p_format->i_bitspersample = aout_BitsPerSample( p_format->i_format );
+ if( p_format->i_bitspersample > 0 )
+ {
+ p_format->i_bytes_per_frame = ( p_format->i_bitspersample / 8 )
+ * aout_FormatNbChannels( p_format );
+ p_format->i_frame_length = 1;
+ }
}
/*****************************************************************************
void aout_FifoInit( aout_instance_t * p_aout, aout_fifo_t * p_fifo,
uint32_t i_rate )
{
+ if( i_rate == 0 )
+ {
+ msg_Err( p_aout, "initialising fifo with zero divider" );
+ }
+
p_fifo->p_first = NULL;
p_fifo->pp_last = &p_fifo->p_first;
aout_DateInit( &p_fifo->end_date, i_rate );
void aout_FifoPush( aout_instance_t * p_aout, aout_fifo_t * p_fifo,
aout_buffer_t * p_buffer )
{
+ (void)p_aout;
*p_fifo->pp_last = p_buffer;
p_fifo->pp_last = &p_buffer->p_next;
*p_fifo->pp_last = NULL;
mtime_t date )
{
aout_buffer_t * p_buffer;
+ (void)p_aout;
aout_DateSet( &p_fifo->end_date, date );
p_buffer = p_fifo->p_first;
mtime_t difference )
{
aout_buffer_t * p_buffer;
+ (void)p_aout;
aout_DateMove( &p_fifo->end_date, difference );
p_buffer = p_fifo->p_first;
*****************************************************************************/
mtime_t aout_FifoNextStart( aout_instance_t * p_aout, aout_fifo_t * p_fifo )
{
+ (void)p_aout;
return aout_DateGet( &p_fifo->end_date );
}
*****************************************************************************/
mtime_t aout_FifoFirstDate( aout_instance_t * p_aout, aout_fifo_t * p_fifo )
{
+ (void)p_aout;
return p_fifo->p_first ? p_fifo->p_first->start_date : 0;
}
aout_buffer_t * aout_FifoPop( aout_instance_t * p_aout, aout_fifo_t * p_fifo )
{
aout_buffer_t * p_buffer;
+ (void)p_aout;
p_buffer = p_fifo->p_first;
if ( p_buffer == NULL ) return NULL;
void aout_FifoDestroy( aout_instance_t * p_aout, aout_fifo_t * p_fifo )
{
aout_buffer_t * p_buffer;
+ (void)p_aout;
p_buffer = p_fifo->p_first;
while ( p_buffer != NULL )
uint32_t i_channel_mask,
int i_channels, int *pi_chan_table )
{
- vlc_bool_t b_chan_reorder = VLC_FALSE;
+ bool b_chan_reorder = false;
int i, j, k, l;
- if( i_channels > AOUT_CHAN_MAX ) return VLC_FALSE;
+ if( i_channels > AOUT_CHAN_MAX ) return false;
for( i = 0, j = 0; pi_chan_order_in[i]; i++ )
{
for( i = 0; i < i_channels; i++ )
{
- if( pi_chan_table[i] != i ) b_chan_reorder = VLC_TRUE;
+ if( pi_chan_table[i] != i ) b_chan_reorder = true;
}
return b_chan_reorder;
projects / vlc / blobdiff