# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include <vlc_aout.h>
#include <jack/jack.h>
jack_port_t **p_jack_ports;
jack_sample_t **p_jack_buffers;
unsigned int i_channels;
+ jack_nframes_t latency;
};
/*****************************************************************************
static void Close ( vlc_object_t * );
static void Play ( aout_instance_t * );
static int Process ( jack_nframes_t i_frames, void *p_arg );
+static int GraphChange ( void *p_arg );
#define AUTO_CONNECT_OPTION "jack-auto-connect"
#define AUTO_CONNECT_TEXT N_("Automatically connect to writable clients")
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-vlc_module_begin();
- set_shortname( "JACK" );
- set_description( _("JACK audio output") );
- set_capability( "audio output", 100 );
- set_category( CAT_AUDIO );
- set_subcategory( SUBCAT_AUDIO_AOUT );
- add_bool( AUTO_CONNECT_OPTION, 0, NULL, AUTO_CONNECT_TEXT,
- AUTO_CONNECT_LONGTEXT, true );
+vlc_module_begin ()
+ set_shortname( "JACK" )
+ set_description( N_("JACK audio output") )
+ set_capability( "audio output", 100 )
+ set_category( CAT_AUDIO )
+ set_subcategory( SUBCAT_AUDIO_AOUT )
+ add_bool( AUTO_CONNECT_OPTION, false, NULL, AUTO_CONNECT_TEXT,
+ AUTO_CONNECT_LONGTEXT, true )
add_string( CONNECT_REGEX_OPTION, NULL, NULL, CONNECT_REGEX_TEXT,
- CONNECT_REGEX_LONGTEXT, true );
- set_callbacks( Open, Close );
-vlc_module_end();
+ CONNECT_REGEX_LONGTEXT, true )
+ set_callbacks( Open, Close )
+vlc_module_end ()
/*****************************************************************************
* Open: create a JACK client
p_sys = calloc( 1, sizeof( aout_sys_t ) );
if( p_sys == NULL )
{
- msg_Err( p_aout, "out of memory" );
status = VLC_ENOMEM;
goto error_out;
}
p_aout->output.p_sys = p_sys;
+ p_sys->latency = 0;
/* Connect to the JACK server */
snprintf( psz_name, sizeof(psz_name), "vlc_%d", getpid());
psz_name[sizeof(psz_name) - 1] = '\0';
- p_sys->p_jack_client = jack_client_new( psz_name );
+ p_sys->p_jack_client = jack_client_open( psz_name,
+ JackNullOption | JackNoStartServer,
+ NULL );
if( p_sys->p_jack_client == NULL )
{
msg_Err( p_aout, "failed to connect to JACK server" );
/* Set the process callback */
jack_set_process_callback( p_sys->p_jack_client, Process, p_aout );
+ jack_set_graph_order_callback ( p_sys->p_jack_client, GraphChange, p_aout );
p_aout->output.pf_play = Play;
aout_VolumeSoftInit( p_aout );
/* JACK only supports fl32 format */
- p_aout->output.output.i_format = VLC_FOURCC('f','l','3','2');
+ p_aout->output.output.i_format = VLC_CODEC_FL32;
// TODO add buffer size callback
p_aout->output.i_nb_samples = jack_get_buffer_size( p_sys->p_jack_client );
p_aout->output.output.i_rate = jack_get_sample_rate( p_sys->p_jack_client );
sizeof(jack_port_t *) );
if( p_sys->p_jack_ports == NULL )
{
- msg_Err( p_aout, "out of memory" );
status = VLC_ENOMEM;
goto error_out;
}
sizeof(jack_sample_t *) );
if( p_sys->p_jack_buffers == NULL )
{
- msg_Err( p_aout, "out of memory" );
status = VLC_ENOMEM;
goto error_out;
}
}
/* Auto connect ports if we were asked to */
- if( config_GetInt( p_aout, AUTO_CONNECT_OPTION ) )
+ if( var_InheritBool( p_aout, AUTO_CONNECT_OPTION ) )
{
unsigned int i_in_ports;
- char *psz_regex = config_GetPsz( p_aout, CONNECT_REGEX_OPTION );
+ char *psz_regex = var_InheritString( p_aout, CONNECT_REGEX_OPTION );
const char **pp_in_ports = jack_get_ports( p_sys->p_jack_client,
psz_regex, NULL,
JackPortIsInput );
+ free( psz_regex );
/* Count the number of returned ports */
i_in_ports = 0;
while( pp_in_ports && pp_in_ports[i_in_ports] )
struct aout_sys_t *p_sys = p_aout->output.p_sys;
jack_sample_t *p_src = NULL;
+ jack_nframes_t dframes = p_sys->latency
+ - jack_frames_since_cycle_start( p_sys->p_jack_client );
+
+ jack_time_t dtime = dframes * 1000 * 1000 / jack_get_sample_rate( p_sys->p_jack_client );
+ mtime_t play_date = mdate() + (mtime_t) ( dtime );
+
/* Get the next audio data buffer */
- aout_buffer_t *p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
+ aout_buffer_t *p_buffer = aout_OutputNextBuffer( p_aout, play_date, false );
+
if( p_buffer != NULL )
{
p_src = (jack_sample_t *)p_buffer->p_buffer;
return 0;
}
+/*****************************************************************************
+ * GraphChange: callback when JACK reorders it's process graph.
+ We update latency information.
+ *****************************************************************************/
+
+static int GraphChange( void *p_arg )
+{
+ aout_instance_t *p_aout = (aout_instance_t*) p_arg;
+ struct aout_sys_t *p_sys = p_aout->output.p_sys;
+ unsigned int i;
+ jack_nframes_t port_latency;
+
+ p_sys->latency = 0;
+
+ for( i = 0; i < p_sys->i_channels; ++i )
+ {
+ port_latency = jack_port_get_total_latency( p_sys->p_jack_client,
+ p_sys->p_jack_ports[i] );
+ p_sys->latency = __MAX( p_sys->latency, port_latency );
+ }
+
+ msg_Dbg(p_aout, "JACK graph reordered. Our maximum latency=%d.", p_sys->latency);
+
+ return 0;
+}
/*****************************************************************************
* Play: nothing to do
*****************************************************************************/
static void Play( aout_instance_t *p_aout )
{
- aout_FifoFirstDate( p_aout, &p_aout->output.fifo );
+ VLC_UNUSED( p_aout );
}
/*****************************************************************************