emergency resync code for pvrparse
authorFelix Domke <tmbinc@elitedvb.net>
Wed, 22 Mar 2006 18:20:41 +0000 (18:20 +0000)
committerFelix Domke <tmbinc@elitedvb.net>
Wed, 22 Mar 2006 18:20:41 +0000 (18:20 +0000)
lib/dvb/pvrparse.cpp

index 65e599c..4b8da89 100644 (file)
@@ -362,6 +362,30 @@ void eMPEGStreamParserTS::parseData(off_t offset, const void *data, unsigned int
                        /* sorry for the redundant code here, but there are too many special cases... */
        while (len)
        {
                        /* sorry for the redundant code here, but there are too many special cases... */
        while (len)
        {
+                       /* emergency resync. usually, this should not happen, because the data should 
+                          be sync-aligned.
+                          
+                          to make this code work for non-strictly-sync-aligned data, (for example, bad 
+                          files) we fix a possible resync here by skipping data until the next 0x47.
+                          
+                          if this is a false 0x47, the packet will be dropped by wantPacket, and the
+                          next time, sync will be re-established. */
+               int skipped = 0;
+               while (!m_pktptr && len)
+               {
+                       if (packet[0] == 0x47)
+                               break;
+                       len--;
+                       packet++;
+                       skipped++;
+               }
+               
+               if (skipped)
+                       eDebug("SYNC LOST: skipped %d bytes.", skipped);
+               
+               if (!len)
+                       break;
+               
                if (m_pktptr)
                {
                                /* skip last packet */
                if (m_pktptr)
                {
                                /* skip last packet */