]> git.sesse.net Git - vlc/blobdiff - src/input/input.c
* ./include/modules_inner.h: replaced _X with __VLC_SYMBOL because _X was
[vlc] / src / input / input.c
index 6bdcc3ba5005dac75628e26496f8c94bc0e60012..207c598b04670ff48cfc7bad511229036e145089 100644 (file)
@@ -4,7 +4,7 @@
  * decoders.
  *****************************************************************************
  * Copyright (C) 1998-2001 VideoLAN
- * $Id: input.c,v 1.161 2001/11/28 15:08:06 massiot Exp $
+ * $Id: input.c,v 1.169 2002/01/09 02:01:14 sam Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
-#include "defs.h"
-
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 
+#include <videolan/vlc.h>
+
 #ifdef HAVE_UNISTD_H
 #   include <unistd.h>
 #elif defined( _MSC_VER ) && defined( _WIN32 )
 #   include <sys/times.h>
 #endif
 
-#include "config.h"
-#include "common.h"
-#include "intf_msg.h"
-#include "threads.h"
-#include "mtime.h"
-#include "tests.h"
 #include "netutils.h"
-#include "modules.h"
 
 #include "intf_playlist.h"
 
@@ -80,8 +73,6 @@
 
 #include "interface.h"
 
-#include "main.h"
-
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
@@ -101,6 +92,41 @@ static void HTTPOpen        ( input_thread_t *p_input );
 static void NetworkClose    ( input_thread_t *p_input );
 #endif
 
+/*****************************************************************************
+ * input_InitBank: initialize the input bank.
+ *****************************************************************************/
+void input_InitBank ( void )
+{
+    p_input_bank->i_count = 0;
+
+    /* XXX: Workaround for old interface modules */
+    p_input_bank->pp_input[0] = NULL;
+
+    vlc_mutex_init( &p_input_bank->lock );
+}
+
+/*****************************************************************************
+ * input_EndBank: empty the input bank.
+ *****************************************************************************
+ * This function ends all unused inputs and empties the bank in
+ * case of success.
+ *****************************************************************************/
+void input_EndBank ( void )
+{
+    int i_input;
+
+    /* Ask all remaining video outputs to die */
+    for( i_input = 0; i_input < p_input_bank->i_count; i_input++ )
+    {
+        input_StopThread(
+                p_input_bank->pp_input[ i_input ], NULL );
+        input_DestroyThread(
+                p_input_bank->pp_input[ i_input ] );
+    }
+
+    vlc_mutex_destroy( &p_input_bank->lock );
+}
+
 /*****************************************************************************
  * input_CreateThread: creates a new input thread
  *****************************************************************************
@@ -112,7 +138,6 @@ static void NetworkClose    ( input_thread_t *p_input );
 input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
 {
     input_thread_t *    p_input;                        /* thread descriptor */
-    int                 i_status;                           /* thread status */
 
     /* Allocate descriptor */
     p_input = (input_thread_t *)malloc( sizeof(input_thread_t) );
@@ -123,20 +148,16 @@ input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
         return( NULL );
     }
 
-    /* Packets read once */
-    p_input->i_read_once = INPUT_READ_ONCE;
-
     /* Initialize thread properties */
-    p_input->b_die              = 0;
-    p_input->b_error            = 0;
-    p_input->b_eof              = 0;
+    p_input->b_die      = 0;
+    p_input->b_error    = 0;
+    p_input->b_eof      = 0;
 
     /* Set target */
-    p_input->p_source           = p_item->psz_name;
+    p_input->p_source   = p_item->psz_name;
 
-    /* I have never understood that stuff --Meuuh */
-    p_input->pi_status          = (pi_status != NULL) ? pi_status : &i_status;
-    *p_input->pi_status         = THREAD_CREATE;
+    /* Set status */
+    p_input->i_status   = THREAD_CREATE;
 
     /* Initialize stream description */
     p_input->stream.i_es_number = 0;
@@ -177,6 +198,7 @@ input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
         return( NULL );
     }
 
+#if 0
     /* If status is NULL, wait until the thread is created */
     if( pi_status == NULL )
     {
@@ -185,36 +207,30 @@ input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
             msleep( THREAD_SLEEP );
         } while( (i_status != THREAD_READY) && (i_status != THREAD_ERROR)
                 && (i_status != THREAD_FATAL) );
-        if( i_status != THREAD_READY )
-        {
-            return( NULL );
-        }
     }
+#endif
+
     return( p_input );
 }
 
 /*****************************************************************************
- * input_DestroyThread: mark an input thread as zombie
+ * input_StopThread: mark an input thread as zombie
  *****************************************************************************
  * This function should not return until the thread is effectively cancelled.
  *****************************************************************************/
-void input_DestroyThread( input_thread_t *p_input, int *pi_status )
+void input_StopThread( input_thread_t *p_input, int *pi_status )
 {
-    int         i_status;                                   /* thread status */
-
-    /* Set status */
-    p_input->pi_status = (pi_status != NULL) ? pi_status : &i_status;
-    *p_input->pi_status = THREAD_DESTROY;
+    /* Make the thread exit from a possible vlc_cond_wait() */
+    vlc_mutex_lock( &p_input->stream.stream_lock );
 
     /* Request thread destruction */
     p_input->b_die = 1;
 
-    /* Make the thread exit of an eventual vlc_cond_wait() */
-    vlc_mutex_lock( &p_input->stream.stream_lock );
     vlc_cond_signal( &p_input->stream.stream_wait );
     vlc_mutex_unlock( &p_input->stream.stream_lock );
 
     /* If status is NULL, wait until thread has been destroyed */
+#if 0
     if( pi_status == NULL )
     {
         do
@@ -223,6 +239,25 @@ void input_DestroyThread( input_thread_t *p_input, int *pi_status )
         } while ( (i_status != THREAD_OVER) && (i_status != THREAD_ERROR)
                   && (i_status != THREAD_FATAL) );
     }
+#endif
+}
+
+/*****************************************************************************
+ * input_DestroyThread: mark an input thread as zombie
+ *****************************************************************************
+ * This function should not return until the thread is effectively cancelled.
+ *****************************************************************************/
+void input_DestroyThread( input_thread_t *p_input )
+{
+    /* Join the thread */
+    vlc_thread_join( p_input->thread_id );
+
+    /* Destroy Mutex locks */
+    vlc_mutex_destroy( &p_input->stream.control.control_lock );
+    vlc_mutex_destroy( &p_input->stream.stream_lock );
+    
+    /* Free input structure */
+    free( p_input );
 }
 
 /*****************************************************************************
@@ -232,39 +267,55 @@ void input_DestroyThread( input_thread_t *p_input, int *pi_status )
  *****************************************************************************/
 static void RunThread( input_thread_t *p_input )
 {
-    int                     i_error, i;
-    data_packet_t **        pp_packets;
-
     if( InitThread( p_input ) )
     {
         /* If we failed, wait before we are killed, and exit */
-        *p_input->pi_status = THREAD_ERROR;
+        p_input->i_status = THREAD_ERROR;
         p_input->b_error = 1;
         ErrorThread( p_input );
         DestroyThread( p_input );
         return;
     }
 
-    /* initialization is completed */
+    p_input->i_status = THREAD_READY;
+
+    /* initialization is complete */
     vlc_mutex_lock( &p_input->stream.stream_lock );
     p_input->stream.b_changed = 1;
     vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-    pp_packets = (data_packet_t **) malloc( p_input->i_read_once *
-                                        sizeof( data_packet_t * ) );
-    if( pp_packets == NULL )
-    {
-        intf_ErrMsg( "input error: out of memory" );
-        free( pp_packets );
-        p_input->b_error = 1;
-    }
-
     while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
     {
+        data_packet_t * p_data;
+        int i_count, i;
+
         p_input->c_loops++;
 
         vlc_mutex_lock( &p_input->stream.stream_lock );
 
+        if( p_input->stream.p_new_program )
+        {
+            if( p_input->pf_set_program != NULL )
+            {
+
+                p_input->pf_set_program( p_input, 
+                        p_input->stream.p_new_program );
+
+                for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
+                {
+                    pgrm_descriptor_t * p_pgrm
+                                            = p_input->stream.pp_programs[i];
+                    /* Escape all decoders for the stream discontinuity they
+                     * will encounter. */
+                    input_EscapeDiscontinuity( p_input, p_pgrm );
+
+                    /* Reinitialize synchro. */
+                    p_pgrm->i_synchro_state = SYNCHRO_REINIT;
+                }
+            }
+            p_input->stream.p_new_program = NULL;
+        }
+        
         if( p_input->stream.p_new_area )
         {
             if( p_input->stream.b_seekable && p_input->pf_set_area != NULL )
@@ -337,33 +388,33 @@ static void RunThread( input_thread_t *p_input )
 
         vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-        i_error = p_input->pf_read( p_input, pp_packets );
+        i_count = p_input->pf_read( p_input, &p_data );
 
         /* Demultiplex read packets. */
-        for( i = 0; i < p_input->i_read_once && pp_packets[i] != NULL; i++ )
+        while( p_data != NULL )
         {
+            data_packet_t * p_next = p_data->p_next;
+            p_data->p_next = NULL;
+
             p_input->stream.c_packets_read++;
-            p_input->pf_demux( p_input, pp_packets[i] );
+            p_input->pf_demux( p_input, p_data );
+
+            p_data = p_next;
         }
 
-        if( i_error )
+        if( i_count == 0 && p_input->stream.b_seekable )
         {
-            if( i_error == 1 )
-            {
-                /* End of file - we do not set b_die because only the
-                 * interface is allowed to do so. */
-                intf_WarnMsg( 3, "input: EOF reached" );
-                p_input->b_eof = 1;
-            }
-            else
-            {
-                p_input->b_error = 1;
-            }
+            /* End of file - we do not set b_die because only the
+             * interface is allowed to do so. */
+            intf_WarnMsg( 3, "input: EOF reached" );
+            p_input->b_eof = 1;
+        }
+        else if( i_count < 0 )
+        {
+            p_input->b_error = 1;
         }
     }
 
-    free( pp_packets );
-
     if( p_input->b_error || p_input->b_eof )
     {
         ErrorThread( p_input );
@@ -381,7 +432,6 @@ static void RunThread( input_thread_t *p_input )
  *****************************************************************************/
 static int InitThread( input_thread_t * p_input )
 {
-
     /* Initialize statistics */
     p_input->c_loops                    = 0;
     p_input->stream.c_packets_read      = 0;
@@ -395,7 +445,8 @@ static int InitThread( input_thread_t * p_input )
 
     /* Find appropriate module. */
     p_input->p_input_module = module_Need( MODULE_CAPABILITY_INPUT,
-                                           (probedata_t *)p_input );
+                                 main_GetPszVariable( INPUT_METHOD_VAR, NULL ),
+                                 (probedata_t *)p_input );
 
     if( p_input->p_input_module == NULL )
     {
@@ -410,6 +461,7 @@ static int InitThread( input_thread_t * p_input )
     p_input->pf_init_bit_stream= f.pf_init_bit_stream;
     p_input->pf_read          = f.pf_read;
     p_input->pf_set_area      = f.pf_set_area;
+    p_input->pf_set_program   = f.pf_set_program;
     p_input->pf_demux         = f.pf_demux;
     p_input->pf_new_packet    = f.pf_new_packet;
     p_input->pf_new_pes       = f.pf_new_pes;
@@ -418,12 +470,17 @@ static int InitThread( input_thread_t * p_input )
     p_input->pf_rewind        = f.pf_rewind;
     p_input->pf_seek          = f.pf_seek;
 
+    if( f.pf_open != NULL )
+    {
+        f.pf_open( p_input );
+        p_input->stream.i_method = INPUT_METHOD_DVD;
+    }
 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
     /* FIXME : this is waaaay too kludgy */
-    if( ( strlen( p_input->p_source ) >= 10
-          && !strncasecmp( p_input->p_source, "udpstream:", 10 ) )
-          || ( strlen( p_input->p_source ) >= 4
-                && !strncasecmp( p_input->p_source, "udp:", 4 ) ) )
+    else if( ( strlen( p_input->p_source ) >= 10
+               && !strncasecmp( p_input->p_source, "udpstream:", 10 ) )
+               || ( strlen( p_input->p_source ) >= 4
+                     && !strncasecmp( p_input->p_source, "udp:", 4 ) ) )
     {
         /* Network stream */
         NetworkOpen( p_input );
@@ -436,30 +493,7 @@ static int InitThread( input_thread_t * p_input )
         HTTPOpen( p_input );
         p_input->stream.i_method = INPUT_METHOD_NETWORK;
     }
-    else 
 #endif
-        if( ( ( strlen( p_input->p_source ) > 4 )
-                && !strncasecmp( p_input->p_source, "dvd:", 4 ) )
-            || TestMethod( INPUT_METHOD_VAR, "dvd" ) )
-    {
-        /* DVD - this is THE kludge */
-        f.pf_open( p_input );
-        p_input->stream.i_method = INPUT_METHOD_DVD;
-    }
-    else if( ( ( strlen( p_input->p_source ) > 8 )
-                 && !strncasecmp( p_input->p_source, "dvdread:", 8 ) )
-              || TestMethod( INPUT_METHOD_VAR, "dvdread" ) )
-    {
-        /* DVDRead - this is THE kludge */
-        f.pf_open( p_input );
-        p_input->stream.i_method = INPUT_METHOD_DVD;
-    }
-    else if( ( strlen( p_input->p_source ) > 4 )
-               && !strncasecmp( p_input->p_source, "vlc:", 4 ) )
-    {
-        /* Dummy input - very kludgy */
-        f.pf_open( p_input );
-    }
     else if( ( strlen( p_input->p_source ) == 1 )
                && *p_input->p_source == '-' )
     {
@@ -491,8 +525,6 @@ static int InitThread( input_thread_t * p_input )
         return( -1 );
     }
 
-    *p_input->pi_status = THREAD_READY;
-
     return( 0 );
 }
 
@@ -515,11 +547,8 @@ static void ErrorThread( input_thread_t *p_input )
  *****************************************************************************/
 static void EndThread( input_thread_t * p_input )
 {
-    int *       pi_status;                                  /* thread status */
-
     /* Store status */
-    pi_status = p_input->pi_status;
-    *pi_status = THREAD_END;
+    p_input->i_status = THREAD_END;
 
     if( p_main->b_stats )
     {
@@ -558,12 +587,16 @@ static void CloseThread( input_thread_t * p_input )
 {
 #define f p_input->p_input_module->p_functions->input.functions.input
 
+    if( f.pf_close != NULL )
+    {
+        f.pf_close( p_input );
+    }
 #if !defined( SYS_BEOS ) && !defined( SYS_NTO )
     /* Close stream */
-    if( ( strlen( p_input->p_source ) > 10
-          && !strncasecmp( p_input->p_source, "udpstream:", 10 ) )
-          || ( strlen( p_input->p_source ) > 4
-                && !strncasecmp( p_input->p_source, "udp:", 4 ) ) )
+    else if( ( strlen( p_input->p_source ) > 10
+               && !strncasecmp( p_input->p_source, "udpstream:", 10 ) )
+               || ( strlen( p_input->p_source ) > 4
+                     && !strncasecmp( p_input->p_source, "udp:", 4 ) ) )
     {
         NetworkClose( p_input );
     }
@@ -572,19 +605,7 @@ static void CloseThread( input_thread_t * p_input )
     {
         NetworkClose( p_input );
     }
-    else 
 #endif
-    if( ( ( strlen( p_input->p_source ) > 4 )
-            && !strncasecmp( p_input->p_source, "dvd:", 4 ) )
-        || TestMethod( INPUT_METHOD_VAR, "dvd" ) )
-    {
-        f.pf_close( p_input );
-    }
-    else if( ( strlen( p_input->p_source ) > 4 )
-               && !strncasecmp( p_input->p_source, "vlc:", 4 ) )
-    {
-        f.pf_close( p_input );
-    }
     else
     {
         FileClose( p_input );
@@ -597,20 +618,8 @@ static void CloseThread( input_thread_t * p_input )
  *****************************************************************************/
 static void DestroyThread( input_thread_t * p_input )
 {
-    int *       pi_status;                                  /* thread status */
-
-    /* Store status */
-    pi_status = p_input->pi_status;
-
-    /* Destroy Mutex locks */
-    vlc_mutex_destroy( &p_input->stream.control.control_lock );
-    vlc_mutex_destroy( &p_input->stream.stream_lock );
-    
-    /* Free input structure */
-    free( p_input );
-
     /* Update status */
-    *pi_status = THREAD_OVER;
+    p_input->i_status = THREAD_OVER;
 }
 
 /*****************************************************************************
@@ -653,7 +662,7 @@ static void FileOpen( input_thread_t * p_input )
             psz_name += 8;
             i_stat = stat( psz_name, &stat_info );
         }
-       else if( ( i_size > 4 )
+        else if( ( i_size > 4 )
             && !strncasecmp( psz_name, "dvd:", 4 ) )
         {
             /* get rid of the 'dvd:' stuff and try again */