[MOVED FROM BAD 03/57] gst/flv/gstflvdemux.c: First method for seeking in pull mode using the index built step by step or coming from metadata.

Original commit message from CVS:
2007-08-14  Julien MOUTTE  <julien@moutte.net>

* gst/flv/gstflvdemux.c: (gst_flv_demux_cleanup),
(gst_flv_demux_adapter_flush), (gst_flv_demux_chain),
(gst_flv_demux_pull_tag), (gst_flv_demux_do_seek),
(gst_flv_demux_handle_seek), (gst_flv_demux_sink_event),
(gst_flv_demux_src_event), (gst_flv_demux_query),
(gst_flv_demux_change_state), (gst_flv_demux_set_index),
(gst_flv_demux_get_index), (gst_flv_demux_dispose),
(gst_flv_demux_class_init): First method for seeking in pull
mode using the index built step by step or coming from metadata.
* gst/flv/gstflvdemux.h:
* gst/flv/gstflvparse.c: (FLV_GET_STRING),
(gst_flv_parse_metadata_item), (gst_flv_parse_tag_script),
(gst_flv_parse_tag_audio), (gst_flv_parse_tag_video): Parse
more metadata types and keyframes index.

3 files changed, 493 insertions, 68 deletions

diff --git a/gst/flv/gstflvdemux.c b/gst/flv/gstflvdemux.c
index dac3ab0a..339fc0d7 100644
--- a/gst/flv/gstflvdemux.c
+++ b/gst/flv/gstflvdemux.c
@@ -93,7 +93,8 @@ gst_flv_demux_cleanup (GstFLVDemux * demux)
 
   demux->video_offset = 0;
   demux->audio_offset = 0;
-  demux->offset = demux->tag_size = demux->tag_data_size = 0;
+  demux->offset = demux->cur_tag_offset = 0;
+  demux->tag_size = demux->tag_data_size = 0;
   demux->duration = GST_CLOCK_TIME_NONE;
 
   if (demux->new_seg_event) {
@@ -114,6 +115,24 @@ gst_flv_demux_cleanup (GstFLVDemux * demux)
     gst_object_unref (demux->video_pad);
     demux->video_pad = NULL;
   }
+
+  if (demux->times) {
+    g_array_free (demux->times, TRUE);
+    demux->times = NULL;
+  }
+
+  if (demux->filepositions) {
+    g_array_free (demux->filepositions, TRUE);
+    demux->filepositions = NULL;
+  }
+}
+
+static void
+gst_flv_demux_adapter_flush (GstFLVDemux * demux, guint64 bytes)
+{
+  demux->offset += bytes;
+
+  gst_adapter_flush (demux->adapter, bytes);
 }
 
 static GstFlowReturn
@@ -137,7 +156,7 @@ parse:
 
         ret = gst_flv_parse_header (demux, data, FLV_HEADER_SIZE);
 
-        gst_adapter_flush (demux->adapter, FLV_HEADER_SIZE);
+        gst_flv_demux_adapter_flush (demux, FLV_HEADER_SIZE);
 
         demux->state = FLV_STATE_TAG_TYPE;
         goto parse;
@@ -150,11 +169,14 @@ parse:
       if (gst_adapter_available (demux->adapter) >= FLV_TAG_TYPE_SIZE) {
         const guint8 *data;
 
+        /* Remember the tag offset in bytes */
+        demux->cur_tag_offset = demux->offset;
+
         data = gst_adapter_peek (demux->adapter, FLV_TAG_TYPE_SIZE);
 
         ret = gst_flv_parse_tag_type (demux, data, FLV_TAG_TYPE_SIZE);
 
-        gst_adapter_flush (demux->adapter, FLV_TAG_TYPE_SIZE);
+        gst_flv_demux_adapter_flush (demux, FLV_TAG_TYPE_SIZE);
 
         goto parse;
       } else {
@@ -170,7 +192,7 @@ parse:
 
         ret = gst_flv_parse_tag_video (demux, data, demux->tag_size);
 
-        gst_adapter_flush (demux->adapter, demux->tag_size);
+        gst_flv_demux_adapter_flush (demux, demux->tag_size);
 
         demux->state = FLV_STATE_TAG_TYPE;
         goto parse;
@@ -187,7 +209,7 @@ parse:
 
         ret = gst_flv_parse_tag_audio (demux, data, demux->tag_size);
 
-        gst_adapter_flush (demux->adapter, demux->tag_size);
+        gst_flv_demux_adapter_flush (demux, demux->tag_size);
 
         demux->state = FLV_STATE_TAG_TYPE;
         goto parse;
@@ -204,7 +226,7 @@ parse:
 
         ret = gst_flv_parse_tag_script (demux, data, demux->tag_size);
 
-        gst_adapter_flush (demux->adapter, demux->tag_size);
+        gst_flv_demux_adapter_flush (demux, demux->tag_size);
 
         demux->state = FLV_STATE_TAG_TYPE;
         goto parse;
@@ -235,6 +257,9 @@ gst_flv_demux_pull_tag (GstPad * pad, GstFLVDemux * demux)
   GstBuffer *buffer = NULL;
   GstFlowReturn ret = GST_FLOW_OK;
 
+  /* Store tag offset */
+  demux->cur_tag_offset = demux->offset;
+
   /* Get the first 4 bytes to identify tag type and size */
   ret = gst_pad_pull_range (pad, demux->offset, FLV_TAG_TYPE_SIZE, &buffer);
   if (G_UNLIKELY (ret != GST_FLOW_OK)) {
@@ -471,6 +496,175 @@ pause:
   }
 }
 
+static gboolean
+gst_flv_demux_do_seek (GstFLVDemux * demux, GstSegment * segment)
+{
+  gboolean ret = FALSE;
+  GstIndexEntry *entry;
+
+  /* Let's check if we have an index entry for that seek time */
+  entry = gst_index_get_assoc_entry (demux->index, demux->index_id,
+      GST_INDEX_LOOKUP_BEFORE, GST_ASSOCIATION_FLAG_KEY_UNIT, GST_FORMAT_TIME,
+      segment->start);
+
+  if (entry) {
+    gint64 bytes = 0;
+    gint64 time = 0;
+
+    gst_index_entry_assoc_map (entry, GST_FORMAT_BYTES, &bytes);
+    gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &time);
+
+    demux->offset = bytes;
+    demux->state = FLV_STATE_TAG_TYPE;
+
+    GST_DEBUG_OBJECT (demux, "found index entry for %" GST_TIME_FORMAT
+        " at %" GST_TIME_FORMAT ", seeking to %" G_GINT64_FORMAT,
+        GST_TIME_ARGS (segment->start), GST_TIME_ARGS (time), bytes);
+
+    /* Key frame seeking */
+    if (demux->segment->flags & GST_SEEK_FLAG_KEY_UNIT) {
+      /* Adjust the segment so that the keyframe fits in */
+      if (time < segment->start) {
+        segment->start = segment->time = time;
+      }
+      segment->last_stop = time;
+    }
+
+    ret = TRUE;
+  } else {
+    GST_DEBUG_OBJECT (demux, "no index entry found for %" GST_TIME_FORMAT,
+        GST_TIME_ARGS (segment->start));
+    ret = FALSE;
+  }
+
+  return ret;
+}
+
+static gboolean
+gst_flv_demux_handle_seek (GstFLVDemux * demux, GstEvent * event)
+{
+  GstFormat format;
+  GstSeekFlags flags;
+  GstSeekType start_type, stop_type;
+  gint64 start, stop;
+  gdouble rate;
+  gboolean update, flush, keyframe, ret;
+  GstSegment seeksegment;
+
+  gst_event_parse_seek (event, &rate, &format, &flags,
+      &start_type, &start, &stop_type, &stop);
+
+  if (format != GST_FORMAT_TIME)
+    goto wrong_format;
+
+  flush = flags & GST_SEEK_FLAG_FLUSH;
+  keyframe = flags & GST_SEEK_FLAG_KEY_UNIT;
+
+  if (flush) {
+    /* Flush start up and downstream to make sure data flow and loops are
+       idle */
+    gst_pad_event_default (demux->sinkpad, gst_event_new_flush_start ());
+    gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
+  } else {
+    /* Pause the pulling task */
+    gst_pad_pause_task (demux->sinkpad);
+  }
+
+  /* Take the stream lock */
+  GST_PAD_STREAM_LOCK (demux->sinkpad);
+
+  if (flush) {
+    /* Stop flushing upstream we need to pull */
+    gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop ());
+  }
+
+  /* Work on a copy until we are sure the seek succeeded. */
+  memcpy (&seeksegment, demux->segment, sizeof (GstSegment));
+
+  GST_DEBUG_OBJECT (demux, "segment before configure %" GST_SEGMENT_FORMAT,
+      demux->segment);
+
+  /* Apply the seek to our segment */
+  gst_segment_set_seek (&seeksegment, rate, format, flags,
+      start_type, start, stop_type, stop, &update);
+
+  GST_DEBUG_OBJECT (demux, "segment configured %" GST_SEGMENT_FORMAT,
+      &seeksegment);
+
+  if (flush || seeksegment.last_stop != demux->segment->last_stop) {
+    /* Do the actual seeking */
+    ret = gst_flv_demux_do_seek (demux, &seeksegment);
+  } else {
+    ret = TRUE;
+  }
+
+  if (flush) {
+    /* Stop flushing, the sinks are at time 0 now */
+    gst_pad_event_default (demux->sinkpad, gst_event_new_flush_stop ());
+  } else {
+    GST_DEBUG_OBJECT (demux, "closing running segment %" GST_SEGMENT_FORMAT,
+        demux->segment);
+
+    /* Close the current segment for a linear playback, FIXME, queue for
+     * streaming thread. */
+    if (demux->segment->rate >= 0) {
+      /* for forward playback, we played from start to last_stop */
+      gst_pad_event_default (demux->sinkpad, gst_event_new_new_segment (TRUE,
+              demux->segment->rate, demux->segment->format,
+              demux->segment->start, demux->segment->last_stop,
+              demux->segment->time));
+    } else {
+      gint64 stop;
+
+      if ((stop = demux->segment->stop) == -1)
+        stop = demux->segment->duration;
+
+      /* for reverse playback, we played from stop to last_stop. */
+      gst_pad_event_default (demux->sinkpad, gst_event_new_new_segment (TRUE,
+              demux->segment->rate, demux->segment->format,
+              demux->segment->last_stop, stop, demux->segment->last_stop));
+    }
+  }
+
+  if (ret) {
+    /* Ok seek succeeded, take the newly configured segment */
+    memcpy (demux->segment, &seeksegment, sizeof (GstSegment));
+
+    /* Notify about the start of a new segment */
+    if (demux->segment->flags & GST_SEEK_FLAG_SEGMENT) {
+      gst_element_post_message (GST_ELEMENT (demux),
+          gst_message_new_segment_start (GST_OBJECT (demux),
+              demux->segment->format, demux->segment->last_stop));
+    }
+
+    /* Tell all the stream a new segment is needed */
+    {
+      demux->audio_need_segment = TRUE;
+      demux->video_need_segment = TRUE;
+      /* Clean any potential newsegment event kept for the streams. The first
+       * stream needing a new segment will create a new one. */
+      if (G_UNLIKELY (demux->new_seg_event)) {
+        gst_event_unref (demux->new_seg_event);
+        demux->new_seg_event = NULL;
+      }
+    }
+  }
+
+  gst_pad_start_task (demux->sinkpad,
+      (GstTaskFunction) gst_flv_demux_loop, demux->sinkpad);
+
+  GST_PAD_STREAM_UNLOCK (demux->sinkpad);
+
+  return ret;
+
+  /* ERRORS */
+wrong_format:
+  {
+    GST_WARNING_OBJECT (demux, "we only support seeking in TIME format");
+    return FALSE;
+  }
+}
+
 /* If we can pull that's prefered */
 static gboolean
 gst_flv_demux_sink_activate (GstPad * sinkpad)
@@ -538,6 +732,10 @@ gst_flv_demux_sink_event (GstPad * pad, GstEvent * event)
       break;
     case GST_EVENT_EOS:
       GST_DEBUG_OBJECT (demux, "received EOS");
+      if (demux->index) {
+        GST_DEBUG_OBJECT (demux, "committing index");
+        gst_index_commit (demux->index, demux->index_id);
+      }
       gst_element_no_more_pads (GST_ELEMENT (demux));
       if (!gst_pad_event_default (demux->sinkpad, event)) {
         GST_WARNING_OBJECT (demux, "failed pushing EOS on streams");
@@ -591,6 +789,83 @@ gst_flv_demux_sink_event (GstPad * pad, GstEvent * event)
   return ret;
 }
 
+gboolean
+gst_flv_demux_src_event (GstPad * pad, GstEvent * event)
+{
+  GstFLVDemux *demux;
+  gboolean ret = FALSE;
+
+  demux = GST_FLV_DEMUX (gst_pad_get_parent (pad));
+
+  switch (GST_EVENT_TYPE (event)) {
+    case GST_EVENT_SEEK:
+      ret = gst_flv_demux_handle_seek (demux, event);
+      break;
+    default:
+      ret = gst_pad_push_event (demux->sinkpad, event);
+      break;
+  }
+
+  gst_object_unref (demux);
+
+  return ret;
+}
+
+gboolean
+gst_flv_demux_query (GstPad * pad, GstQuery * query)
+{
+  gboolean res = TRUE;
+  GstFLVDemux *demux;
+
+  demux = GST_FLV_DEMUX (gst_pad_get_parent (pad));
+
+  switch (GST_QUERY_TYPE (query)) {
+    case GST_QUERY_DURATION:
+    {
+      GstFormat format;
+
+      gst_query_parse_duration (query, &format, NULL);
+
+      /* duration is time only */
+      if (format != GST_FORMAT_TIME) {
+        GST_DEBUG_OBJECT (demux, "duration query only supported for time "
+            "format");
+        res = FALSE;
+        goto beach;
+      }
+
+      GST_DEBUG_OBJECT (pad, "duration query, replying %" GST_TIME_FORMAT,
+          GST_TIME_ARGS (demux->duration));
+
+      gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
+
+      break;
+    }
+    case GST_QUERY_LATENCY:
+    {
+      GstPad *peer;
+
+      if ((peer = gst_pad_get_peer (demux->sinkpad))) {
+        /* query latency on peer pad */
+        res = gst_pad_query (peer, query);
+        gst_object_unref (peer);
+      } else {
+        /* no peer, we don't know */
+        res = FALSE;
+      }
+      break;
+    }
+    default:
+      res = FALSE;
+      break;
+  }
+
+beach:
+  gst_object_unref (demux);
+
+  return res;
+}
+
 static GstStateChangeReturn
 gst_flv_demux_change_state (GstElement * element, GstStateChange transition)
 {
@@ -601,6 +876,15 @@ gst_flv_demux_change_state (GstElement * element, GstStateChange transition)
 
   switch (transition) {
     case GST_STATE_CHANGE_READY_TO_PAUSED:
+      /* If no index was created, generate one */
+      if (G_UNLIKELY (!demux->index)) {
+        GST_DEBUG_OBJECT (demux, "no index provided creating our own");
+
+        demux->index = gst_index_factory_make ("memindex");
+
+        gst_index_get_writer_id (demux->index, GST_OBJECT (demux),
+            &demux->index_id);
+      }
       gst_flv_demux_cleanup (demux);
       break;
     default:
@@ -623,6 +907,24 @@ gst_flv_demux_change_state (GstElement * element, GstStateChange transition)
 }
 
 static void
+gst_flv_demux_set_index (GstElement * element, GstIndex * index)
+{
+  GstFLVDemux *demux = GST_FLV_DEMUX (element);
+
+  demux->index = gst_object_ref (index);
+
+  gst_index_get_writer_id (index, GST_OBJECT (element), &demux->index_id);
+}
+
+static GstIndex *
+gst_flv_demux_get_index (GstElement * element)
+{
+  GstFLVDemux *demux = GST_FLV_DEMUX (element);
+
+  return demux->index;
+}
+
+static void
 gst_flv_demux_dispose (GObject * object)
 {
   GstFLVDemux *demux = GST_FLV_DEMUX (object);
@@ -660,6 +962,21 @@ gst_flv_demux_dispose (GObject * object)
     demux->video_pad = NULL;
   }
 
+  if (demux->index) {
+    gst_object_unref (demux->index);
+    demux->index = NULL;
+  }
+
+  if (demux->times) {
+    g_array_free (demux->times, TRUE);
+    demux->times = NULL;
+  }
+
+  if (demux->filepositions) {
+    g_array_free (demux->filepositions, TRUE);
+    demux->filepositions = NULL;
+  }
+
   GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
 }
 
@@ -687,6 +1004,8 @@ gst_flv_demux_class_init (GstFLVDemuxClass * klass)
 
   gstelement_class->change_state =
       GST_DEBUG_FUNCPTR (gst_flv_demux_change_state);
+  gstelement_class->set_index = GST_DEBUG_FUNCPTR (gst_flv_demux_set_index);
+  gstelement_class->get_index = GST_DEBUG_FUNCPTR (gst_flv_demux_get_index);
 }
 
 static void
diff --git a/gst/flv/gstflvdemux.h b/gst/flv/gstflvdemux.h
index 63878f1d..c3a4cf21 100644
--- a/gst/flv/gstflvdemux.h
+++ b/gst/flv/gstflvdemux.h
@@ -56,6 +56,12 @@ struct _GstFLVDemux
 
   GstPad *audio_pad;
   GstPad *video_pad;
+  
+  GstIndex *index;
+  gint index_id;
+  
+  GArray * times;
+  GArray * filepositions;
 
   GstAdapter *adapter;
 
@@ -68,6 +74,7 @@ struct _GstFLVDemux
   GstFLVDemuxState state;
 
   guint64 offset;
+  guint64 cur_tag_offset;
   GstClockTime duration;
   guint64 tag_size;
   guint64 tag_data_size;
@@ -106,5 +113,8 @@ struct _GstFLVDemuxClass
 
 GType gst_flv_demux_get_type (void);
 
+gboolean gst_flv_demux_query (GstPad * pad, GstQuery * query);
+gboolean gst_flv_demux_src_event (GstPad * pad, GstEvent * event);
+
 G_END_DECLS
 #endif /* __FLV_DEMUX_H__ */
diff --git a/gst/flv/gstflvparse.c b/gst/flv/gstflvparse.c
index ef0f1f34..1421f8d4 100644
--- a/gst/flv/gstflvparse.c
+++ b/gst/flv/gstflvparse.c
@@ -44,8 +44,8 @@ FLV_GET_STRING (const guint8 * data, size_t data_size)
   guint32 string_size = 0;
   gchar *string = NULL;
 
-  g_return_val_if_fail (data != NULL, 0);
-  g_return_val_if_fail (data_size >= 3, 0);
+  g_return_val_if_fail (data != NULL, NULL);
+  g_return_val_if_fail (data_size >= 2, NULL);
 
   string_size = GST_READ_UINT16_BE (data);
   if (G_UNLIKELY (string_size > data_size)) {
@@ -73,69 +73,17 @@ gst_flv_demux_query_types (GstPad * pad)
   return query_types;
 }
 
-static gboolean
-gst_flv_demux_query (GstPad * pad, GstQuery * query)
-{
-  gboolean res = TRUE;
-  GstFLVDemux *demux;
-
-  demux = GST_FLV_DEMUX (gst_pad_get_parent (pad));
-
-  switch (GST_QUERY_TYPE (query)) {
-    case GST_QUERY_DURATION:
-    {
-      GstFormat format;
-
-      gst_query_parse_duration (query, &format, NULL);
-
-      /* duration is time only */
-      if (format != GST_FORMAT_TIME) {
-        GST_DEBUG_OBJECT (demux, "duration query only supported for time "
-            "format");
-        res = FALSE;
-        goto beach;
-      }
-
-      GST_DEBUG_OBJECT (pad, "duration query, replying %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (demux->duration));
-
-      gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
-
-      break;
-    }
-    case GST_QUERY_LATENCY:
-    {
-      GstPad *peer;
-
-      if ((peer = gst_pad_get_peer (demux->sinkpad))) {
-        /* query latency on peer pad */
-        res = gst_pad_query (peer, query);
-        gst_object_unref (peer);
-      } else {
-        /* no peer, we don't know */
-        res = FALSE;
-      }
-      break;
-    }
-    default:
-      res = FALSE;
-      break;
-  }
-
-beach:
-  gst_object_unref (demux);
-
-  return res;
-}
-
 static size_t
 gst_flv_parse_metadata_item (GstFLVDemux * demux, const guint8 * data,
-    size_t data_size)
+    size_t data_size, gboolean * end_marker)
 {
   gchar *tag_name = NULL;
   guint8 tag_type = 0;
   size_t offset = 0;
 
+  /* Initialize the end_marker flag to FALSE */
+  *end_marker = FALSE;
+
   /* Name of the tag */
   tag_name = FLV_GET_STRING (data, data_size);
   if (G_UNLIKELY (!tag_name)) {
@@ -246,6 +194,114 @@ gst_flv_parse_metadata_item (GstFLVDemux * demux, const guint8 * data,
 
       break;
     }
+    case 3:                    // Object
+    {
+      gboolean end_of_object_marker = FALSE;
+
+      while (!end_of_object_marker && offset < data_size) {
+        size_t read = gst_flv_parse_metadata_item (demux, data + offset,
+            data_size - offset, &end_of_object_marker);
+
+        if (G_UNLIKELY (!read)) {
+          GST_WARNING_OBJECT (demux, "failed reading a tag, skipping");
+          break;
+        }
+
+        offset += read;
+      }
+
+      break;
+    }
+    case 9:                    // End marker
+    {
+      GST_DEBUG_OBJECT (demux, "end marker ?");
+      if (tag_name[0] == '\0') {
+
+        GST_DEBUG_OBJECT (demux, "end marker detected");
+
+        *end_marker = TRUE;
+      }
+
+      break;
+    }
+    case 10:                   // Array
+    {
+      guint32 nb_elems = GST_READ_UINT32_BE (data + offset);
+
+      offset += 4;
+
+      GST_DEBUG_OBJECT (demux, "array has %d elements", nb_elems);
+
+      if (!strcmp (tag_name, "times")) {
+        if (demux->times) {
+          g_array_free (demux->times, TRUE);
+        }
+        demux->times = g_array_new (FALSE, TRUE, sizeof (gdouble));
+      } else if (!strcmp (tag_name, "filepositions")) {
+        if (demux->filepositions) {
+          g_array_free (demux->filepositions, TRUE);
+        }
+        demux->filepositions = g_array_new (FALSE, TRUE, sizeof (gdouble));
+      }
+
+      while (nb_elems--) {
+        guint8 elem_type = GST_READ_UINT8 (data + offset);
+
+        offset++;
+
+        switch (elem_type) {
+          case 0:
+          {
+            union
+            {
+              guint64 value_uint64;
+              gdouble value_double;
+            } value_union;
+
+            value_union.value_uint64 = GST_READ_UINT64_BE (data + offset);
+
+            offset += 8;
+
+            GST_DEBUG_OBJECT (demux, "element is a double %f",
+                value_union.value_double);
+
+            if (!strcmp (tag_name, "times") && demux->times) {
+              g_array_append_val (demux->times, value_union.value_double);
+            } else if (!strcmp (tag_name, "filepositions") &&
+                demux->filepositions) {
+              g_array_append_val (demux->filepositions,
+                  value_union.value_double);
+            }
+            break;
+          }
+          default:
+            GST_WARNING_OBJECT (demux, "unsupported array element type %d",
+                elem_type);
+        }
+      }
+
+      break;
+    }
+    case 11:                   // Date
+    {
+      union
+      {
+        guint64 value_uint64;
+        gdouble value_double;
+      } value_union;
+
+      value_union.value_uint64 = GST_READ_UINT64_BE (data + offset);
+
+      offset += 8;
+
+      /* There are 2 additional bytes */
+      offset += 2;
+
+      GST_DEBUG_OBJECT (demux, "%s => (date as a double) %f", tag_name,
+          value_union.value_double);
+
+      break;
+    }
     default:
       GST_WARNING_OBJECT (demux, "unsupported tag type %d", tag_type);
   }
@@ -266,12 +322,14 @@ gst_flv_parse_tag_script (GstFLVDemux * demux, const guint8 * data,
   GST_LOG_OBJECT (demux, "parsing a script tag");
 
   if (GST_READ_UINT8 (data + offset++) == 2) {
+    guint i;
     gchar *function_name = FLV_GET_STRING (data + offset, data_size - offset);
 
     GST_LOG_OBJECT (demux, "function name is %s", function_name);
 
     if (!strcmp (function_name, "onMetaData")) {
       guint32 nb_elems = 0;
+      gboolean end_marker = FALSE;
 
       GST_DEBUG_OBJECT (demux, "we have a metadata script object");
 
@@ -285,9 +343,9 @@ gst_flv_parse_tag_script (GstFLVDemux * demux, const guint8 * data,
 
       GST_DEBUG_OBJECT (demux, "there are %d elements in the array", nb_elems);
 
-      while (nb_elems--) {
+      while (nb_elems-- && !end_marker) {
         size_t read = gst_flv_parse_metadata_item (demux, data + offset,
-            data_size - offset);
+            data_size - offset, &end_marker);
 
         if (G_UNLIKELY (!read)) {
           GST_WARNING_OBJECT (demux, "failed reading a tag, skipping");
@@ -300,6 +358,21 @@ gst_flv_parse_tag_script (GstFLVDemux * demux, const guint8 * data,
     }
 
     g_free (function_name);
+
+    if (demux->index) {
+      /* If an index was found, insert associations */
+      for (i = 0; i < MIN (demux->times->len, demux->filepositions->len); i++) {
+        guint64 time, fileposition;
+
+        time = g_array_index (demux->times, gdouble, i) * GST_SECOND;
+        fileposition = g_array_index (demux->filepositions, gdouble, i);
+        GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %"
+            G_GUINT64_FORMAT, GST_TIME_ARGS (time), fileposition);
+        gst_index_add_association (demux->index, demux->index_id,
+            GST_ASSOCIATION_FLAG_KEY_UNIT, GST_FORMAT_TIME, time,
+            GST_FORMAT_BYTES, fileposition, NULL);
+      }
+    }
   }
 
 
@@ -427,6 +500,8 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data,
         GST_DEBUG_FUNCPTR (gst_flv_demux_query_types));
     gst_pad_set_query_function (demux->audio_pad,
         GST_DEBUG_FUNCPTR (gst_flv_demux_query));
+    gst_pad_set_event_function (demux->audio_pad,
+        GST_DEBUG_FUNCPTR (gst_flv_demux_src_event));
 
     /* We need to set caps before adding */
     gst_element_add_pad (GST_ELEMENT (demux),
@@ -528,6 +603,8 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data,
       demux->new_seg_event = gst_event_new_new_segment (FALSE,
           demux->segment->rate, demux->segment->format,
           demux->segment->last_stop, -1, demux->segment->last_stop);
+    } else {
+      GST_DEBUG_OBJECT (demux, "pushing pre-generated newsegment event");
     }
 
     gst_pad_push_event (demux->audio_pad, gst_event_ref (demux->new_seg_event));
@@ -556,14 +633,19 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
 {
   GstFlowReturn ret = GST_FLOW_OK;
   GstBuffer *buffer = NULL;
-  guint32 pts = 0, codec_tag = 0, codec_data = 0;
+  guint32 pts = 0, codec_tag = 0, codec_data = 0, pts_ext = 0;
   gboolean keyframe = FALSE;
   guint8 flags = 0;
 
   GST_LOG_OBJECT (demux, "parsing a video tag");
 
-  /* Grab information about audio tag */
+  /* Grab information about video tag */
   pts = FLV_GET_BEUI24 (data, data_size);
+  /* read the pts extension to 32 bits integer */
+  pts_ext = GST_READ_UINT8 (data + 3);
+  /* Combine them */
+  pts |= pts_ext << 24;
+  /* Skip the stream id and go directly to the flags */
   flags = GST_READ_UINT8 (data + 7);
 
   /* Keyframe */
@@ -644,6 +726,8 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
         GST_DEBUG_FUNCPTR (gst_flv_demux_query_types));
     gst_pad_set_query_function (demux->video_pad,
         GST_DEBUG_FUNCPTR (gst_flv_demux_query));
+    gst_pad_set_event_function (demux->video_pad,
+        GST_DEBUG_FUNCPTR (gst_flv_demux_src_event));
 
     /* We need to set caps before adding */
     gst_element_add_pad (GST_ELEMENT (demux),
@@ -727,6 +811,16 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
 
   if (!keyframe) {
     GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
+  } else {
+    if (demux->index) {
+      GST_LOG_OBJECT (demux, "adding association %" GST_TIME_FORMAT "-> %"
+          G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
+          demux->cur_tag_offset);
+      gst_index_add_association (demux->index, demux->index_id,
+          GST_ASSOCIATION_FLAG_KEY_UNIT,
+          GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (buffer),
+          GST_FORMAT_BYTES, demux->cur_tag_offset, NULL);
+    }
   }
 
   if (G_UNLIKELY (demux->video_need_discont)) {
@@ -746,6 +840,8 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data,
       demux->new_seg_event = gst_event_new_new_segment (FALSE,
           demux->segment->rate, demux->segment->format,
           demux->segment->last_stop, -1, demux->segment->last_stop);
+    } else {
+      GST_DEBUG_OBJECT (demux, "pushing pre-generated newsegment event");
     }
 
     gst_pad_push_event (demux->video_pad, gst_event_ref (demux->new_seg_event));