modifications for RTP reordering:

 * for RTP, prebuffering is done within RTP access
 * reordering now working within this buffer
 * solves synchro problems since packet rate is preserved 

include/vlc_access.h

@@ -103,6 +103,8 @@ struct access_t
 
         int          i_title;    /* idem, start from 0 (could be menu) */
         int          i_seekpoint;/* idem, start from 0 */
+
+        vlc_bool_t   b_prebuffered; /* Read only for input */ 
     } info;
     access_sys_t *p_sys;
 };

include/vlc_block.h

@@ -77,6 +77,7 @@ typedef struct block_sys_t block_sys_t;
 struct block_t
 {
     block_t     *p_next;
+    block_t     *p_prev;
 
     uint32_t    i_flags;
 
@@ -87,6 +88,8 @@ struct block_t
     int         i_samples; /* Used for audio */
     int         i_rate;
 
+    uint16_t	i_seqno;   /* Used for RTP */
+
     int         i_buffer;
     uint8_t     *p_buffer;
 

src/input/access.c

@@ -72,6 +72,7 @@ static access_t *access2_InternalNew( vlc_object_t *p_obj, char *psz_access,
     p_access->info.i_size   = 0;
     p_access->info.i_pos    = 0;
     p_access->info.b_eof    = VLC_FALSE;
+    p_access->info.b_prebuffered = VLC_FALSE;
     p_access->info.i_title  = 0;
     p_access->info.i_seekpoint = 0;
 

src/input/stream.c

@@ -566,6 +566,7 @@ static int AStreamControl( stream_t *s, int i_query, va_list args )
 static void AStreamPrebufferBlock( stream_t *s )
 {
     stream_sys_t *p_sys = s->p_sys;
+    access_t     *p_access = p_sys->p_access;
 
     int64_t i_first = 0;
     int64_t i_start;
@@ -606,12 +607,6 @@ static void AStreamPrebufferBlock( stream_t *s )
             continue;
         }
 
-        if( i_first == 0 )
-        {
-            i_first = mdate();
-            msg_Dbg( s, "received first data for our buffer");
-        }
-
         while( b )
         {
             /* Append the block */
@@ -622,6 +617,21 @@ static void AStreamPrebufferBlock( stream_t *s )
             p_sys->stat.i_read_count++;
             b = b->p_next;
         }
+
+        if( p_access->info.b_prebuffered ) 
+        {
+            /* Access has already prebufferred - update stats and exit */
+            p_sys->stat.i_bytes = p_sys->block.i_size;
+            p_sys->stat.i_read_time = mdate() - i_start;
+            break;
+        }
+
+        if( i_first == 0 )
+        {
+            i_first = mdate();
+            msg_Dbg( s, "received first data for our buffer");
+        }
+
     }
 
     p_sys->block.p_current = p_sys->block.p_first;

src/misc/block.c

@@ -64,11 +64,13 @@ block_t *__block_New( vlc_object_t *p_obj, int i_size )
 
     /* Fill all fields */
     p_block->p_next         = NULL;
+    p_block->p_prev         = NULL;
     p_block->i_flags        = 0;
     p_block->i_pts          = 0;
     p_block->i_dts          = 0;
     p_block->i_length       = 0;
     p_block->i_rate         = 0;
+    p_block->i_seqno        = 0;
     p_block->i_buffer       = i_size;
     p_block->p_buffer       =
         &p_sys->p_allocated_buffer[BLOCK_PADDING_SIZE +