Merge branch 'master' into tmbinc/FixTimingBugs
[enigma2.git] / lib / dvb / pvrparse.cpp
index 1b6cb46..c7a3746 100644 (file)
@@ -36,8 +36,6 @@ int eMPEGStreamInformation::load(const char *filename)
                return -1;
        m_access_points.clear();
        m_pts_to_offset.clear();
-       pts_t last = -(1LL<<62);
-       int loaded = 0, skipped = 0;
        while (1)
        {
                unsigned long long d[2];
@@ -48,16 +46,9 @@ int eMPEGStreamInformation::load(const char *filename)
                d[0] = bswap_64(d[0]);
                d[1] = bswap_64(d[1]);
 #endif
-               if ((d[1] - last) > 90000/2)
-               {
-                       m_access_points[d[0]] = d[1];
-                       m_pts_to_offset.insert(std::pair<pts_t,off_t>(d[1], d[0]));
-                       last = d[1];
-                       loaded++;
-               } else
-                       skipped++;
+               m_access_points[d[0]] = d[1];
+               m_pts_to_offset.insert(std::pair<pts_t,off_t>(d[1], d[0]));
        }
-       eDebug("loaded %d, skipped %d", loaded, skipped);
        fclose(f);
        fixupDiscontinuties();
        return 0;
@@ -216,30 +207,45 @@ pts_t eMPEGStreamInformation::getInterpolated(off_t offset)
        return before_ts + diff;
 }
  
-off_t eMPEGStreamInformation::getAccessPoint(pts_t ts)
+off_t eMPEGStreamInformation::getAccessPoint(pts_t ts, int marg)
 {
                /* FIXME: more efficient implementation */
        off_t last = 0;
+       off_t last2 = 0;
+       pts_t lastc = 0;
        for (std::map<off_t, pts_t>::const_iterator i(m_access_points.begin()); i != m_access_points.end(); ++i)
        {
                pts_t delta = getDelta(i->first);
                pts_t c = i->second - delta;
-               if (c > ts)
-                       break;
+               if (c > ts) {
+                       if (marg > 0)
+                               return (last + i->first)/376*188;
+                       else if (marg < 0)
+                               return (last + last2)/376*188;
+                       else
+                               return last;
+               }
+               lastc = c;
+               last2 = last;
                last = i->first;
        }
-       return last;
+       if (marg < 0)
+               return (last + last2)/376*188;
+       else
+               return last;
 }
 
 int eMPEGStreamInformation::getNextAccessPoint(pts_t &ts, const pts_t &start, int direction)
 {
        off_t offset = getAccessPoint(start);
+       pts_t c1, c2;
        std::map<off_t, pts_t>::const_iterator i = m_access_points.find(offset);
        if (i == m_access_points.end())
        {
                eDebug("getNextAccessPoint: initial AP not found");
                return -1;
        }
+       c1 = i->second - getDelta(i->first);
        while (direction)
        {
                if (direction > 0)
@@ -247,6 +253,12 @@ int eMPEGStreamInformation::getNextAccessPoint(pts_t &ts, const pts_t &start, in
                        if (i == m_access_points.end())
                                return -1;
                        ++i;
+                       c2 = i->second - getDelta(i->first);
+                       if (c1 == c2) { // Discontinuity
+                               ++i;
+                               c2 = i->second - getDelta(i->first);
+                       }
+                       c1 = c2;
                        direction--;
                }
                if (direction < 0)
@@ -257,6 +269,12 @@ int eMPEGStreamInformation::getNextAccessPoint(pts_t &ts, const pts_t &start, in
                                return -1;
                        }
                        --i;
+                       c2 = i->second - getDelta(i->first);
+                       if (c1 == c2) { // Discontinuity
+                               --i;
+                               c2 = i->second - getDelta(i->first);
+                       }
+                       c1 = c2;
                        direction++;
                }
        }
@@ -352,7 +370,8 @@ int eMPEGStreamParserTS::processPacket(const unsigned char *pkt, off_t offset)
                                /*eDebug("Sequence header but no valid PTS value.")*/;
                }
 
-               if (pkt[3] == 0x09) /* MPEG4 AVC unit access delimiter */
+               if (pkt[3] == 0x09 &&   /* MPEG4 AVC unit access delimiter */
+                        (pkt[4] >> 5) == 0) /* and I-frame */
                {
                        if (ptsvalid)
                        {