access: add a default pf_control for directory accesses

include/vlc_access.h

@@ -162,6 +162,11 @@ static inline void access_InitFields( access_t *p_a )
  */
 VLC_API input_thread_t * access_GetParentInput( access_t *p_access ) VLC_USED;
 
+/**
+ * Default pf_control callback for directory accesses.
+ */
+VLC_API int access_vaDirectoryControlHelper( access_t *p_access, int i_query, va_list args );
+
 #define ACCESS_SET_CALLBACKS( read, block, control, seek ) \
     do { \
         p_access->pf_read = (read); \

modules/access/directory.c

@@ -93,6 +93,7 @@ int DirOpen (vlc_object_t *p_this)
     p_access->p_sys->p_dir = p_dir;
     p_access->p_sys->psz_base_uri = psz_base_uri;
     p_access->pf_readdir = DirRead;
+    p_access->pf_control = access_vaDirectoryControlHelper;
 
     return VLC_SUCCESS;
 }

modules/access/dsm/access.c

@@ -705,6 +705,7 @@ static int BrowserInit( access_t *p_access )
         p_access->pf_readdir = BrowseDirectory;
         p_access->info.b_dir_can_loop = true;
     }
+    p_access->pf_control = access_vaDirectoryControlHelper;
 
     return VLC_SUCCESS;
 }

modules/access/ftp.c

@@ -668,6 +668,7 @@ static int InOpen( vlc_object_t *p_this )
     if( b_directory )
     {
         p_access->pf_readdir = DirRead;
+        p_access->pf_control = access_vaDirectoryControlHelper;
         p_access->info.b_dir_can_loop = true;
     } else
         ACCESS_SET_CALLBACKS( Read, NULL, Control, Seek ); \

modules/access/sftp.c

@@ -296,6 +296,7 @@ static int Open( vlc_object_t* p_this )
         p_sys->file = libssh2_sftp_opendir( p_sys->sftp_session, psz_path );
 
         p_access->pf_readdir = DirRead;
+        p_access->pf_control = access_vaDirectoryControlHelper;
         p_access->info.b_dir_can_loop = true;
 
         if( p_sys->file )

modules/access/smb.c

@@ -253,6 +253,7 @@ static int Open( vlc_object_t *p_this )
         return VLC_EGENERIC;
 #else
         p_access->pf_readdir = DirRead;
+        p_access->pf_control = access_vaDirectoryControlHelper;
         p_access->info.b_dir_can_loop = true;
         i_smb = smbc_opendir( psz_uri );
         i_size = 0;

modules/services_discovery/upnp.cpp

@@ -839,6 +839,7 @@ static int Open( vlc_object_t *p_this )
     }
 
     p_access->pf_readdir = ReadDirectory;
+    p_access->pf_control = access_vaDirectoryControlHelper;
     p_access->info.b_dir_sorted = true;
     p_access->info.b_dir_can_loop = true;
 

src/input/access.c

@@ -128,3 +128,26 @@ input_thread_t * access_GetParentInput( access_t *p_access )
     return p_access->p_input ? vlc_object_hold((vlc_object_t *)p_access->p_input) : NULL;
 }
 
+/*****************************************************************************
+ * access_vaDirectoryControlHelper:
+ *****************************************************************************/
+int access_vaDirectoryControlHelper( access_t *p_access, int i_query, va_list args )
+{
+    VLC_UNUSED( p_access );
+
+    switch( i_query )
+    {
+        case ACCESS_CAN_SEEK:
+        case ACCESS_CAN_FASTSEEK:
+        case ACCESS_CAN_PAUSE:
+        case ACCESS_CAN_CONTROL_PACE:
+            *va_arg( args, bool* ) = false;
+            break;
+        case ACCESS_GET_PTS_DELAY:
+            *va_arg( args, int64_t * ) = 0;
+            break;
+        default:
+            return VLC_EGENERIC;
+     }
+     return VLC_SUCCESS;
+}

src/libvlccore.sym

 access_GetParentInput
+access_vaDirectoryControlHelper
 AddMD5
 aout_BitsPerSample
 aout_ChannelExtract