]> git.sesse.net Git - vlc/blobdiff - src/input/input.c
IP Multicast support, courtesy of Mathias Kretschmer <mathias@research.att.com>.
[vlc] / src / input / input.c
index e923239accfdf8b4d4694d845651e925b7208e91..171700bde6d6ef1f3f10aa684dbdeb9145cb7030 100644 (file)
@@ -4,7 +4,7 @@
  * decoders.
  *****************************************************************************
  * Copyright (C) 1998, 1999, 2000 VideoLAN
- * $Id: input.c,v 1.102 2001/04/28 03:36:25 sam Exp $
+ * $Id: input.c,v 1.130 2001/08/27 16:13:20 massiot Exp $
  *
  * Authors: Christophe Massiot <massiot@via.ecp.fr>
  *
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <unistd.h>
+
+#ifdef HAVE_UNISTD_H
+#   include <unistd.h>
+#elif defined( _MSC_VER ) && defined( _WIN32 )
+#   include <io.h>
+#endif
+
 #include <string.h>
+#include <errno.h>
+
 #ifdef STRNCASECMP_IN_STRINGS_H
 #   include <strings.h>
 #endif
-#include <errno.h>
 
-/* Network functions */
-
-#if !defined( SYS_BEOS ) && !defined( SYS_NTO ) && !defined( WIN32 )
-#include <netdb.h>                                            /* hostent ... */
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
+#ifdef WIN32
+#   include <winsock2.h>
+#elif !defined( SYS_BEOS ) && !defined( SYS_NTO )
+#   include <netdb.h>                                         /* hostent ... */
+#   include <sys/socket.h>
+#   include <netinet/in.h>
+#   include <arpa/inet.h>
+#   include <sys/types.h>
+#   include <sys/socket.h>
 #endif
 
 #ifdef STATS
 #include "stream_control.h"
 #include "input_ext-intf.h"
 #include "input_ext-dec.h"
+#include "input_ext-plugins.h"
 
-#include "input.h"
 #include "interface.h"
 
 #include "main.h"
 
- /* #include <netutils.h> */
-
-
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
@@ -85,6 +89,13 @@ static void ErrorThread     ( input_thread_t *p_input );
 static void DestroyThread   ( input_thread_t *p_input );
 static void EndThread       ( input_thread_t *p_input );
 
+static void FileOpen        ( input_thread_t *p_input );
+static void FileClose       ( input_thread_t *p_input );
+#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
+static void NetworkOpen     ( input_thread_t *p_input );
+static void NetworkClose    ( input_thread_t *p_input );
+#endif
+
 /*****************************************************************************
  * input_CreateThread: creates a new input thread
  *****************************************************************************
@@ -127,13 +138,16 @@ input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
     p_input->stream.i_selected_es_number = 0;
     p_input->stream.i_pgrm_number = 0;
     p_input->stream.i_new_status = p_input->stream.i_new_rate = 0;
+    p_input->stream.b_new_mute = MUTE_NO_CHANGE;
     p_input->stream.i_mux_rate = 0;
 
     /* no stream, no area */
     p_input->stream.i_area_nb = 0;
     p_input->stream.pp_areas = NULL;
     p_input->stream.p_selected_area = NULL;
-    /* By default there is one areas in a stream */
+    p_input->stream.p_new_area = NULL;
+
+    /* By default there is one area in a stream */
     input_AddArea( p_input );
     p_input->stream.p_selected_area = p_input->stream.pp_areas[0];
 
@@ -141,16 +155,22 @@ input_thread_t *input_CreateThread ( playlist_item_t *p_item, int *pi_status )
     p_input->stream.control.i_status = PLAYING_S;
     p_input->stream.control.i_rate = DEFAULT_RATE;
     p_input->stream.control.b_mute = 0;
-    p_input->stream.control.b_bw = 0;
+    p_input->stream.control.b_grayscale = main_GetIntVariable(
+                            VOUT_GRAYSCALE_VAR, VOUT_GRAYSCALE_DEFAULT );
+    p_input->stream.control.i_smp = main_GetIntVariable(
+                            VDEC_SMP_VAR, VDEC_SMP_DEFAULT );
+
+    /* Setup callbacks */
+    p_input->pf_file_open     = FileOpen;
+    p_input->pf_file_close    = FileClose;
+#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
+    p_input->pf_network_open  = NetworkOpen;
+    p_input->pf_network_close = NetworkClose;
+#endif
 
-    /* Initialize default settings for spawned decoders */
-    p_input->p_default_aout = p_main->p_aout;
-    p_input->p_default_vout = p_main->p_vout;
+    intf_WarnMsg( 1, "input: playlist item `%s'", p_input->p_source );
 
-    /* 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 );
+    /* Create thread. */
     if( vlc_thread_create( &p_input->thread_id, "input", (void *) RunThread,
                            (void *) p_input ) )
     {
@@ -216,10 +236,10 @@ 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->b_error = 1;
@@ -233,16 +253,45 @@ static void RunThread( input_thread_t *p_input )
     p_input->stream.b_changed = 1;
     vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-    while( !p_input->b_die && !p_input->b_error && !p_input->b_eof )
+    pp_packets = (data_packet_t **) malloc( p_input->i_read_once *
+                                        sizeof( data_packet_t * ) );
+    if( pp_packets == NULL )
     {
-        data_packet_t *         pp_packets[p_input->i_read_once];
+        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 )
+    {
 #ifdef STATS
         p_input->c_loops++;
 #endif
 
         vlc_mutex_lock( &p_input->stream.stream_lock );
 
+        if( p_input->stream.p_new_area )
+        {
+            if( p_input->stream.b_seekable && p_input->pf_set_area != NULL )
+            {
+
+                p_input->pf_set_area( p_input, p_input->stream.p_new_area );
+
+                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_area = NULL;
+        }
+
         if( p_input->stream.p_selected_area->i_seek != NO_SEEK )
         {
             if( p_input->stream.b_seekable && p_input->pf_seek != NULL )
@@ -265,6 +314,32 @@ static void RunThread( input_thread_t *p_input )
             p_input->stream.p_selected_area->i_seek = NO_SEEK;
         }
 
+        if( p_input->stream.p_removed_es )
+        {
+            input_UnselectES( p_input, p_input->stream.p_removed_es );
+            p_input->stream.p_removed_es = NULL;
+        }
+
+        if( p_input->stream.p_newly_selected_es )
+        {
+            input_SelectES( p_input, p_input->stream.p_newly_selected_es );
+            p_input->stream.p_newly_selected_es = NULL;
+        }
+
+        if( p_input->stream.b_new_mute != MUTE_NO_CHANGE )
+        {
+            if( p_input->stream.b_new_mute )
+            {
+                input_EscapeAudioDiscontinuity( p_input );
+            }
+
+            vlc_mutex_lock( &p_input->stream.control.control_lock );
+            p_input->stream.control.b_mute = p_input->stream.b_new_mute;
+            vlc_mutex_unlock( &p_input->stream.control.control_lock );
+
+            p_input->stream.b_new_mute = MUTE_NO_CHANGE;
+        }
+
         vlc_mutex_unlock( &p_input->stream.stream_lock );
 
         i_error = p_input->pf_read( p_input, pp_packets );
@@ -281,7 +356,7 @@ static void RunThread( input_thread_t *p_input )
             {
                 /* End of file - we do not set b_die because only the
                  * interface is allowed to do so. */
-                intf_WarnMsg( 1, "input: EOF reached" );
+                intf_WarnMsg( 3, "input: EOF reached" );
                 p_input->b_eof = 1;
             }
             else
@@ -291,6 +366,8 @@ static void RunThread( input_thread_t *p_input )
         }
     }
 
+    free( pp_packets );
+
     if( p_input->b_error || p_input->b_eof )
     {
         ErrorThread( p_input );
@@ -318,8 +395,16 @@ static int InitThread( input_thread_t * p_input )
     p_input->c_packets_trashed          = 0;
 #endif
 
-    p_input->p_input_module = module_Need( p_main->p_bank,
-                                           MODULE_CAPABILITY_INPUT,
+    /* 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 );
+
+    /* Default, might get overwritten */
+    p_input->pf_open = p_input->pf_file_open;
+    p_input->pf_close = p_input->pf_file_close;
+
+    p_input->p_input_module = module_Need( MODULE_CAPABILITY_INPUT,
                                            (probedata_t *)p_input );
 
     if( p_input->p_input_module == NULL )
@@ -331,9 +416,16 @@ static int InitThread( input_thread_t * p_input )
 
 #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;
+    if( f.pf_open != NULL )
+    {
+        p_input->pf_open          = f.pf_open;
+    }
+    if( f.pf_close != NULL )
+    {
+        p_input->pf_close         = f.pf_close;
+    }
     p_input->pf_end           = f.pf_end;
+    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_demux         = f.pf_demux;
@@ -344,13 +436,14 @@ static int InitThread( input_thread_t * p_input )
     p_input->pf_rewind        = f.pf_rewind;
     p_input->pf_seek          = f.pf_seek;
 #undef f
+
+    /* We found the appropriate plugin, open the target */
     p_input->pf_open( p_input );
 
     if( p_input->b_error )
     {
         /* We barfed -- exit nicely */
-        p_input->pf_close( p_input );
-        module_Unneed( p_main->p_bank, p_input->p_input_module );
+        module_Unneed( p_input->p_input_module );
         return( -1 );
     }
 
@@ -360,7 +453,7 @@ static int InitThread( input_thread_t * p_input )
     {
         /* We barfed -- exit nicely */
         p_input->pf_close( p_input );
-        module_Unneed( p_main->p_bank, p_input->p_input_module );
+        module_Unneed( p_input->p_input_module );
         return( -1 );
     }
 
@@ -399,8 +492,8 @@ static void EndThread( input_thread_t * p_input )
         struct tms cpu_usage;
         times( &cpu_usage );
 
-        intf_Msg("input stats: cpu usage (user: %d, system: %d)",
-                 cpu_usage.tms_utime, cpu_usage.tms_stime);
+        intf_Msg( "input stats: cpu usage (user: %d, system: %d)",
+                  cpu_usage.tms_utime, cpu_usage.tms_stime );
     }
 #endif
 
@@ -414,7 +507,7 @@ static void EndThread( input_thread_t * p_input )
     p_input->pf_close( p_input );
 
     /* Release modules */
-    module_Unneed( p_main->p_bank, p_input->p_input_module );
+    module_Unneed( p_input->p_input_module );
 
 }
 
@@ -440,9 +533,9 @@ static void DestroyThread( input_thread_t * p_input )
 }
 
 /*****************************************************************************
- * input_FileOpen : open a file descriptor
+ * FileOpen : open a file descriptor
  *****************************************************************************/
-void input_FileOpen( input_thread_t * p_input )
+static void FileOpen( input_thread_t * p_input )
 {
     struct stat         stat_info;
     int                 i_stat;
@@ -511,14 +604,9 @@ void input_FileOpen( input_thread_t * p_input )
     p_input->stream.p_selected_area->i_tell = 0;
     vlc_mutex_unlock( &p_input->stream.stream_lock );
 
-    intf_Msg( "input: opening file `%s'", p_input->p_source );
-#ifndef WIN32
+    intf_WarnMsg( 2, "input: opening file `%s'", p_input->p_source );
     if( (p_input->i_handle = open( psz_name,
                                    /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
-#else
-    if( (p_input->i_handle = open( psz_name, O_BINARY
-                                   /*O_NONBLOCK | O_LARGEFILE*/ )) == (-1) )
-#endif
     {
         intf_ErrMsg( "input error: cannot open file (%s)", strerror(errno) );
         p_input->b_error = 1;
@@ -528,31 +616,46 @@ void input_FileOpen( input_thread_t * p_input )
 }
 
 /*****************************************************************************
- * input_FileClose : close a file descriptor
+ * FileClose : close a file descriptor
  *****************************************************************************/
-void input_FileClose( input_thread_t * p_input )
+static void FileClose( input_thread_t * p_input )
 {
-    intf_Msg( "input: closing file `%s'", p_input->p_source );
+    intf_WarnMsg( 2, "input: closing file `%s'", p_input->p_source );
+
     close( p_input->i_handle );
 
     return;
 }
 
-
-#if !defined( SYS_BEOS ) && !defined( SYS_NTO ) && !defined( WIN32 )
+#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
 /*****************************************************************************
- * input_NetworkOpen : open a network socket 
+ * NetworkOpen : open a network socket 
  *****************************************************************************/
-void input_NetworkOpen( input_thread_t * p_input )
+static void NetworkOpen( input_thread_t * p_input )
 {
     char                *psz_server = NULL;
+    char                *psz_broadcast = NULL;
     int                 i_port = 0;
     int                 i_opt;
+    int                 i_opt_size;
     struct sockaddr_in  sock;
-    char *              psz_broadcast;
+    unsigned int        i_mc_group;
+
+#ifdef WIN32
+    WSADATA Data;
+    int i_err;
+#endif
     
-    /* Are we broadcasting ? */
-    psz_broadcast = main_GetPszVariable( INPUT_BROADCAST_VAR, NULL );
+#ifdef WIN32
+    /* WinSock Library Init. */
+    i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
+
+    if( i_err )
+    {
+        intf_ErrMsg( "input: can't initiate WinSocks, error %i", i_err );
+        return ;
+    }
+#endif
     
     /* Get the remote server */
     if( p_input->p_source != NULL )
@@ -589,7 +692,31 @@ void input_NetworkOpen( input_thread_t * p_input )
                 *psz_port = '\0';
                 psz_port++;
 
-                i_port = atoi( psz_port );
+                psz_broadcast = psz_port;
+                while( *psz_broadcast && *psz_broadcast != ':' )
+                {
+                    psz_broadcast++;
+                }
+
+                if( *psz_broadcast )
+                {
+                    *psz_broadcast = '\0';
+                    psz_broadcast++;
+                    while( *psz_broadcast && *psz_broadcast == ':' )
+                    {
+                        psz_broadcast++;
+                    }
+                }
+                else
+                {
+                    psz_broadcast = NULL;
+                }
+
+                /* port before broadcast address */
+                if( *psz_port != ':' )
+                {
+                    i_port = atoi( psz_port );
+                }
             }
         }
         else
@@ -610,13 +737,31 @@ void input_NetworkOpen( input_thread_t * p_input )
     {
         i_port = main_GetIntVariable( INPUT_PORT_VAR, INPUT_PORT_DEFAULT );
     }
-    
+
+    if( psz_broadcast == NULL )
+    {
+        /* Are we broadcasting ? */
+        if( main_GetIntVariable( INPUT_BROADCAST_VAR,
+                                 INPUT_BROADCAST_DEFAULT ) )
+        {
+            psz_broadcast = main_GetPszVariable( INPUT_BCAST_ADDR_VAR,
+                                                 INPUT_BCAST_ADDR_DEFAULT );
+        }
+        else
+        {
+           psz_broadcast = NULL; 
+        }
+    }
+
+    intf_WarnMsg( 2, "input: server=%s port=%d broadcast=%s",
+                     psz_server, i_port, psz_broadcast );
+
     /* Open a SOCK_DGRAM (UDP) socket, in the AF_INET domain, automatic (0)
      * protocol */
     p_input->i_handle = socket( AF_INET, SOCK_DGRAM, 0 );
     if( p_input->i_handle == -1 )
     {
-        intf_ErrMsg("input error: can't create socket : %s", strerror(errno));
+        intf_ErrMsg( "input error: can't create socket (%s)", strerror(errno) );
         p_input->b_error = 1;
         return;
     }
@@ -624,10 +769,10 @@ void input_NetworkOpen( input_thread_t * p_input )
     /* We may want to reuse an already used socket */
     i_opt = 1;
     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_REUSEADDR,
-                    &i_opt, sizeof( i_opt ) ) == -1 )
+                    (void *) &i_opt, sizeof( i_opt ) ) == -1 )
     {
-        intf_ErrMsg("input error: can't configure socket (SO_REUSEADDR: %s)",
-                    strerror(errno));
+        intf_ErrMsg( "input error: can't configure socket (SO_REUSEADDR: %s)",
+                     strerror(errno));
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
@@ -637,66 +782,123 @@ void input_NetworkOpen( input_thread_t * p_input )
      * packet loss caused by scheduling problems */
     i_opt = 0x80000;
     if( setsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF,
-                    &i_opt, sizeof( i_opt ) ) == -1 )
+                    (void *) &i_opt, sizeof( i_opt ) ) == -1 )
+    {
+        intf_ErrMsg( "input error: can't configure socket (SO_RCVBUF: %s)", 
+                     strerror(errno));
+        close( p_input->i_handle );
+        p_input->b_error = 1;
+        return;
+    }
+
+    /* Check if we really got what we have asked for, because Linux, etc.
+     * will silently limit the max buffer size to net.core.rmem_max which
+     * is typically only 65535 bytes */
+    i_opt = 0;
+    i_opt_size = sizeof( i_opt );
+    if( getsockopt( p_input->i_handle, SOL_SOCKET, SO_RCVBUF,
+                    (void*) &i_opt, &i_opt_size ) == -1 )
     {
-        intf_ErrMsg("input error: can't configure socket (SO_RCVBUF: %s)", 
-                    strerror(errno));
+        intf_ErrMsg( "input error: can't configure socket (SO_RCVBUF: %s)", 
+                     strerror(errno));
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
     }
+    
+    if( i_opt < 0x80000 )
+    {
+        intf_ErrMsg( "input warning: socket receive buffer size just %d instead of %d bytes.\n",
+                     i_opt, 0x80000 );
+    }
 
     /* Build the local socket */
-    if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) 
-         == -1 )
+    if ( network_BuildLocalAddr( &sock, i_port, psz_broadcast ) == -1 )
     {
+        intf_ErrMsg( "input error: can't build local address" );
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
     }
+
+    /* Required for IP_ADD_MEMBERSHIP */
+    i_mc_group = sock.sin_addr.s_addr;
+
+#if defined( WIN32 )
+    if ( psz_broadcast != NULL )
+    {
+        sock.sin_addr.s_addr = INADDR_ANY;
+    }
+#define IN_MULTICAST(a)         IN_CLASSD(a)
+#endif
     
     /* Bind it */
     if( bind( p_input->i_handle, (struct sockaddr *)&sock, 
               sizeof( sock ) ) < 0 )
     {
-        intf_ErrMsg("input error: can't bind socket (%s)", strerror(errno));
+        intf_ErrMsg( "input error: can't bind socket (%s)", strerror(errno) );
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
     }
 
+    /* Join the m/c group if sock is a multicast address */
+    if( IN_MULTICAST( ntohl(i_mc_group) ) )
+    {
+        struct ip_mreq imr;
+
+        imr.imr_interface.s_addr = htonl(INADDR_ANY);
+        imr.imr_multiaddr.s_addr = i_mc_group;
+        if( setsockopt( p_input->i_handle, IPPROTO_IP,IP_ADD_MEMBERSHIP,
+                        (char*)&imr, sizeof(struct ip_mreq) ) == -1 )
+        {
+            intf_ErrMsg( "input error: failed to join IP multicast group (%s)",
+                         strerror(errno) );
+            close( p_input->i_handle);
+            p_input->b_error = 1;
+            return;
+        }
+    }
+
     /* Build socket for remote connection */
     if ( network_BuildRemoteAddr( &sock, psz_server ) == -1 )
     {
+        intf_ErrMsg( "input error: can't build remote address" );
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
     }
 
-    /* And connect it ... should we really connect ? */
+    /* And connect it */
     if( connect( p_input->i_handle, (struct sockaddr *) &sock,
                  sizeof( sock ) ) == (-1) )
     {
-        intf_ErrMsg( "NetworkOpen: can't connect socket : %s", 
+        intf_ErrMsg( "input error: can't connect socket (%s)", 
                      strerror(errno) );
         close( p_input->i_handle );
         p_input->b_error = 1;
         return;
     }
 
-    /* We can't pace control, but FIXME : bug in meuuh's code to sync PCR
-     * with the server. */
-    p_input->stream.b_pace_control = 1;
+    p_input->stream.b_pace_control = 0;
     p_input->stream.b_seekable = 0;
+
+    intf_WarnMsg( 3, "input: successfully opened network mode" );
     
     return;
 }
 
 /*****************************************************************************
- * input_NetworkClose : close a network socket
+ * NetworkClose : close a network socket
  *****************************************************************************/
-void input_NetworkClose( input_thread_t * p_input )
+static void NetworkClose( input_thread_t * p_input )
 {
     close( p_input->i_handle );
+
+#ifdef WIN32 
+    WSACleanup();
+#endif
+
 }
 #endif
+