From d8759c262b75deb5a12f44f32949e43e8e4f3dd9 Mon Sep 17 00:00:00 2001
From: Gildas Bazin <gbazin@videolan.org>
Date: Sun, 30 Oct 2005 16:25:28 +0000
Subject: [PATCH] * modules/demux/real.c, modules/access/rtsp/*: fixes for real
 rtsp / demuxing.

---
 modules/access/rtsp/real_rmff.c | 13 +++++++++----
 modules/demux/real.c            | 19 ++++++++-----------
 2 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/modules/access/rtsp/real_rmff.c b/modules/access/rtsp/real_rmff.c
index a13f19a734..bee892417f 100644
--- a/modules/access/rtsp/real_rmff.c
+++ b/modules/access/rtsp/real_rmff.c
@@ -505,7 +505,7 @@ void rmff_fix_header(rmff_header_t *h) {
       memset(h->data, 0, sizeof(rmff_data_t));
       h->data->object_id=DATA_TAG;
       h->data->object_version=0;
-      h->data->size=34;
+      h->data->size=18;
       h->data->num_packets=0;
       h->data->next_data_header=0;
     }
@@ -518,7 +518,7 @@ void rmff_fix_header(rmff_header_t *h) {
     if( h->fileheader ) {
       memset(h->fileheader, 0, sizeof(rmff_fileheader_t));
       h->fileheader->object_id=RMF_TAG;
-      h->fileheader->size=34;
+      h->fileheader->size=18;
       h->fileheader->object_version=0;
       h->fileheader->file_version=0;
       h->fileheader->num_headers=num_headers+1;
@@ -536,6 +536,9 @@ void rmff_fix_header(rmff_header_t *h) {
       lprintf("rmff_fix_header: setting prop.data_offset from %i to %i\n", h->prop->data_offset, header_size);
       h->prop->data_offset=header_size;
     }
+
+    /* FIXME: I doubt this is right to do this here.
+     * It should belong to the demux. */
     if (h->prop->num_packets == 0) {
       int p=(int)(h->prop->avg_bit_rate/8.0*(h->prop->duration/1000.0)/h->prop->avg_packet_size);
       lprintf("rmff_fix_header: assuming prop.num_packets=%i\n", p);
@@ -545,8 +548,10 @@ void rmff_fix_header(rmff_header_t *h) {
       lprintf("rmff_fix_header: assuming data.num_packets=%i\n", h->prop->num_packets);
       h->data->num_packets=h->prop->num_packets;
     }
-    lprintf("rmff_fix_header: assuming data.size=%i\n", h->prop->num_packets*h->prop->avg_packet_size);
-    h->data->size=h->prop->num_packets*h->prop->avg_packet_size;
+    if (h->data->size == 18 || !h->data->size ) {
+      lprintf("rmff_fix_header: assuming data.size=%i\n", h->prop->num_packets*h->prop->avg_packet_size);
+      h->data->size+=h->prop->num_packets*h->prop->avg_packet_size;
+    }
   }
 }
 
diff --git a/modules/demux/real.c b/modules/demux/real.c
index d27eda04f4..b1a785a3f2 100644
--- a/modules/demux/real.c
+++ b/modules/demux/real.c
@@ -100,6 +100,7 @@ static int Open( vlc_object_t *p_this )
     p_demux->pf_demux = Demux;
     p_demux->pf_control = Control;
     p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
+    memset( p_sys, 0, sizeof( demux_sys_t ) );
     p_sys->i_data_offset = 0;
     p_sys->i_track = 0;
     p_sys->track   = NULL;
@@ -175,9 +176,9 @@ static int Demux( demux_t *p_demux )
     real_track_t *tk = NULL;
     vlc_bool_t  b_selected;
 
-    if( p_sys->i_data_packets >= p_sys->i_data_packets_count )
+    if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
+        p_sys->i_data_packets_count )
     {
-
         if( stream_Read( p_demux->s, header, 18 ) < 18 )
         {
             return 0;
@@ -602,7 +603,11 @@ static int HeaderRead( demux_t *p_demux )
         msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
                  (char*)&i_id, i_size, i_version );
 
-        if( i_size < 10 ) return VLC_EGENERIC;
+        if( i_size < 10 )
+        {
+            msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
+            return VLC_EGENERIC;
+        }
         i_skip = i_size - 10;
 
         if( i_id == VLC_FOURCC('.','R','M','F') )
@@ -923,14 +928,6 @@ static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
         if( fmt.i_codec != 0 )
         {
             msg_Dbg( p_demux, "        - extra data=%d", fmt.i_extra );
-            {
-                int i;
-                for( i = 0; i < fmt.i_extra; i++ )
-                {
-                    msg_Dbg( p_demux, "          data[%d] = 0x%x", i,
-                             ((uint8_t*)fmt.p_extra)[i] );
-                }
-            }
 
             tk = malloc( sizeof( real_track_t ) );
             tk->i_id = i_num;
-- 
2.39.5