]> git.sesse.net Git - vlc/blobdiff - src/input/input.c
Beginning of Interface II
[vlc] / src / input / input.c
index cfca95f8deaa248bb55c54da250f5555e5273769..43bff2eed1ce2ca71071bd105b0e53877f3a9fb0 100644 (file)
@@ -4,9 +4,9 @@
  * decoders.
  *****************************************************************************
  * Copyright (C) 1998, 1999, 2000 VideoLAN
- * $Id: input.c,v 1.74 2001/02/07 17:44:52 massiot Exp $
+ * $Id: input.c,v 1.79 2001/02/11 01:15:11 sam Exp $
  *
- * Authors: 
+ * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
 #include "common.h"
 #include "threads.h"
 #include "mtime.h"
+#include "modules.h"
 
 #include "intf_msg.h"
+#include "intf_plst.h"
 
 #include "stream_control.h"
 #include "input_ext-intf.h"
 #include "input_ext-dec.h"
 
 #include "input.h"
+#include "interface.h"
+
+#include "main.h"
 
 /*****************************************************************************
  * Local prototypes
@@ -60,9 +65,6 @@ static void RunThread   ( input_thread_t *p_input );
 static void InitThread  ( input_thread_t *p_input );
 static void ErrorThread ( input_thread_t *p_input );
 static void EndThread   ( input_thread_t *p_input );
-static void NetworkOpen ( input_thread_t *p_input );
-static void FileOpen    ( input_thread_t *p_input );
-static void DvdOpen     ( input_thread_t *p_input );
 
 /*****************************************************************************
  * input_CreateThread: creates a new input thread
@@ -72,7 +74,7 @@ static void DvdOpen     ( input_thread_t *p_input );
  * If pi_status is NULL, then the function will block until the thread is ready.
  * If not, it will be updated using one of the THREAD_* constants.
  *****************************************************************************/
-input_thread_t *input_CreateThread ( input_config_t * p_config, int *pi_status )
+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 */
@@ -83,17 +85,20 @@ input_thread_t *input_CreateThread ( input_config_t * p_config, int *pi_status )
     {
         intf_ErrMsg( "input error: can't allocate input thread (%s)",
                      strerror(errno) );
-        free( p_config );
         return( NULL );
     }
 
     /* Initialize thread properties */
     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;
+
     /* I have never understood that stuff --Meuuh */
     p_input->pi_status          = (pi_status != NULL) ? pi_status : &i_status;
     *p_input->pi_status         = THREAD_CREATE;
-    p_input->p_config = p_config;
 
     /* Initialize stream description */
     p_input->stream.i_es_number = 0;
@@ -108,8 +113,13 @@ input_thread_t *input_CreateThread ( input_config_t * p_config, int *pi_status )
     p_input->stream.control.b_mute = 0;
     p_input->stream.control.b_bw = 0;
 
+    /* Initialize default settings for spawned decoders */
+    p_input->p_default_aout = p_main->p_aout;
+    p_input->p_default_vout = p_main->p_vout;
+
     /* Create thread and set locks. */
     vlc_mutex_init( &p_input->stream.stream_lock );
+    vlc_cond_init( &p_input->stream.stream_wait );
     vlc_mutex_init( &p_input->stream.control.control_lock );
     if( vlc_thread_create( &p_input->thread_id, "input", (void *) RunThread,
                            (void *) p_input ) )
@@ -117,7 +127,6 @@ input_thread_t *input_CreateThread ( input_config_t * p_config, int *pi_status )
         intf_ErrMsg( "input error: can't create input thread (%s)",
                      strerror(errno) );
         free( p_input );
-        free( p_config );
         return( NULL );
     }
 
@@ -153,6 +162,11 @@ void input_DestroyThread( input_thread_t *p_input, int *pi_status )
     /* 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( pi_status == NULL )
     {
@@ -176,42 +190,61 @@ static void RunThread( input_thread_t *p_input )
 
     InitThread( p_input );
 
-    while( !p_input->b_die && !p_input->b_error )
+    while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
     {
+
 #ifdef STATS
         p_input->c_loops++;
 #endif
 
-        vlc_mutex_lock( &p_input->stream.control.control_lock );
-        if( p_input->stream.control.i_status == BACKWARD_S
-             && p_input->p_plugin->pf_rewind != NULL )
+        vlc_mutex_lock( &p_input->stream.stream_lock );
+        if( p_input->stream.i_seek )
         {
-            p_input->p_plugin->pf_rewind( p_input );
-            /* FIXME: probably don't do it every loop, but when ? */
+            if( p_input->stream.b_seekable && p_input->pf_seek != NULL )
+            {
+                p_input->pf_seek( p_input, p_input->stream.i_seek );
+
+                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.i_seek = 0;
         }
-        vlc_mutex_unlock( &p_input->stream.control.control_lock );
+        vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-        i_error = p_input->p_plugin->pf_read( p_input, pp_packets );
+        i_error = p_input->pf_read( p_input, pp_packets );
 
         /* Demultiplex read packets. */
         for( i = 0; i < INPUT_READ_ONCE && pp_packets[i] != NULL; i++ )
         {
-            p_input->p_plugin->pf_demux( p_input, pp_packets[i] );
+            p_input->pf_demux( p_input, pp_packets[i] );
         }
 
         if( i_error )
         {
             if( i_error == 1 )
             {
-                /* End of file */
+                /* End of file - we do not set b_die because only the
+                 * interface is allowed to do so. */
                 intf_WarnMsg( 1, "End of file reached" );
-                /* FIXME: don't treat that as an error */
+                p_input->b_eof = 1;
+            }
+            else
+            {
+                p_input->b_error = 1;
             }
-            p_input->b_error = 1;
         }
     }
 
-    if( p_input->b_error )
+    if( p_input->b_error || p_input->b_eof )
     {
         ErrorThread( p_input );
     }
@@ -221,15 +254,10 @@ static void RunThread( input_thread_t *p_input )
 }
 
 /*****************************************************************************
- * InitThread: init the input thread
+ * InitThread: init the input Thread
  *****************************************************************************/
-input_capabilities_t * PSKludge( void );
-input_capabilities_t * DVDKludge( void );
 static void InitThread( input_thread_t * p_input )
 {
-    /* Initialize default settings for spawned decoders */
-    p_input->p_default_aout     = p_input->p_config->p_default_aout;
-    p_input->p_default_vout     = p_input->p_config->p_default_vout;
 
 #ifdef STATS
     /* Initialize statistics */
@@ -240,47 +268,40 @@ static void InitThread( input_thread_t * p_input )
     p_input->c_packets_trashed          = 0;
 #endif
 
-    /* Use the appropriate input method */
-    switch( p_input->p_config->i_method )
+    p_input->p_input_module = module_Need( p_main->p_bank,
+                                           MODULE_CAPABILITY_INPUT, NULL );
+
+    if( p_input->p_input_module == NULL )
     {
-    case INPUT_METHOD_FILE:                                  /* file methods */
-        FileOpen( p_input );
-        /* Probe plugin (FIXME: load plugins before & write this) */
-        p_input->p_plugin = PSKludge();
-       break;
-    case INPUT_METHOD_DVD:                                     /* DVD method */
-        DvdOpen( p_input );
-        /* DVD plugin */
-        p_input->p_plugin = DVDKludge();
-        break;
-    case INPUT_METHOD_VLAN_BCAST:                     /* vlan network method */
-/*        if( !p_main->b_vlans )
-        {
-            intf_ErrMsg("input error: vlans are not activated");
-            free( p_input );
-            return( NULL );
-        } */ /* la-lala */
-        /* ... pass through */
-    case INPUT_METHOD_UCAST:                              /* network methods */
-    case INPUT_METHOD_MCAST:
-    case INPUT_METHOD_BCAST:
-        NetworkOpen( p_input );
-        break;
-#ifdef DEBUG
-    default:
-        intf_ErrMsg( "input error: unknow method 0x%.4x",
-                     p_input->p_config->i_method );
-        free( p_input->p_config );
+        intf_ErrMsg( "input error: no suitable input module" );
         p_input->b_error = 1;
-        break;
-#endif
+        return;
     }
 
-    free( p_input->p_config );
+#define f p_input->p_input_module->p_functions->input.functions.input
+    p_input->pf_init          = f.pf_init;
+    p_input->pf_open          = f.pf_open;
+    p_input->pf_close         = f.pf_close;
+    p_input->pf_end           = f.pf_end;
+    p_input->pf_read          = f.pf_read;
+    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;
+    p_input->pf_delete_packet = f.pf_delete_packet;
+    p_input->pf_delete_pes    = f.pf_delete_pes;
+    p_input->pf_rewind        = f.pf_rewind;
+    p_input->pf_seek          = f.pf_seek;
+#undef f
+
+    p_input->pf_open( p_input );
 
-    if( !p_input->b_error )
+    if( p_input->b_error )
     {
-        p_input->p_plugin->pf_init( p_input );
+        module_Unneed( p_main->p_bank, p_input->p_input_module );
+    }
+    else
+    {
+        p_input->pf_init( p_input );
     }
 
     *p_input->pi_status = THREAD_READY;
@@ -324,9 +345,14 @@ static void EndThread( input_thread_t * p_input )
     /* Free all ES and destroy all decoder threads */
     input_EndStream( p_input );
 
+    /* Close stream */
+    p_input->pf_close( p_input );
+
     /* Free demultiplexer's data */
-    p_input->p_plugin->pf_end( p_input );
-    free( p_input->p_plugin );
+    p_input->pf_end( p_input );
+
+    /* Release modules */
+    module_Unneed( p_main->p_bank, p_input->p_input_module );
 
     /* Destroy Mutex locks */
     vlc_mutex_destroy( &p_input->stream.control.control_lock );
@@ -340,31 +366,16 @@ static void EndThread( input_thread_t * p_input )
 }
 
 /*****************************************************************************
- * NetworkOpen : open a network socket descriptor
+ * input_FileOpen : open a file descriptor
  *****************************************************************************/
-static void NetworkOpen( input_thread_t * p_input )
-{
-    /* straight copy & paste of input_network.c of input-I */
-
-    /* We cannot rewind nor lseek() */
-    p_input->stream.b_seekable = 0;
-    /* We cannot control the pace */
-    p_input->stream.b_pace_control = 0;
-}
-
-/*****************************************************************************
- * FileOpen : open a file descriptor
- *****************************************************************************/
-static void FileOpen( input_thread_t * p_input )
+void input_FileOpen( input_thread_t * p_input )
 {
     struct stat         stat_info;
 
-#define p_config    p_input->p_config
-
-    if( stat( p_config->p_source, &stat_info ) == (-1) )
+    if( stat( p_input->p_source, &stat_info ) == (-1) )
     {
         intf_ErrMsg( "input error: cannot stat() file `%s' (%s)",
-                     p_config->p_source, strerror(errno));
+                     p_input->p_source, strerror(errno));
         p_input->b_error = 1;
         return;
     }
@@ -389,7 +400,7 @@ static void FileOpen( input_thread_t * p_input )
     {
         vlc_mutex_unlock( &p_input->stream.stream_lock );
         intf_ErrMsg( "input error: unknown file type for `%s'",
-                     p_config->p_source );
+                     p_input->p_source );
         p_input->b_error = 1;
         return;
     }
@@ -397,8 +408,8 @@ static void FileOpen( input_thread_t * p_input )
     p_input->stream.i_tell = 0;
     vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-    intf_Msg( "input: opening file %s", p_config->p_source );
-    if( (p_input->i_handle = open( p_config->p_source,
+    intf_Msg( "input: opening file %s", p_input->p_source );
+    if( (p_input->i_handle = open( p_input->p_source,
                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
     {
         intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) );
@@ -406,29 +417,15 @@ static void FileOpen( input_thread_t * p_input )
         return;
     }
 
-#undef p_config
 }
 
 /*****************************************************************************
- * DvdOpen : open the dvd device
+ * input_FileClose : close a file descriptor
  *****************************************************************************/
-static void DvdOpen( input_thread_t * p_input )
+void input_FileClose( input_thread_t * p_input )
 {
-    intf_Msg( "input: opening DVD %s", p_input->p_config->p_source );
-    if( (p_input->i_handle = open( p_input->p_config->p_source,
-                                O_RDONLY| O_NONBLOCK |O_LARGEFILE )) == (-1) )
-    {
-        intf_ErrMsg( "input error: cannot open device (%s)", strerror(errno) );
-        p_input->b_error = 1;
-        return;
-    }
-
-    vlc_mutex_lock( &p_input->stream.stream_lock );
+    close( p_input->i_handle );
 
-    p_input->stream.b_pace_control = 1;
-    p_input->stream.b_seekable = 1;
-    p_input->stream.i_size = 0;
-    p_input->stream.i_tell = 0;
-
-    vlc_mutex_unlock( &p_input->stream.stream_lock );
+    return;
 }
+