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plugins/elements/gstmultiqueue.c: Make sure we don't reference the buffer/event after we have given away ownership in...
Original commit message from CVS: * plugins/elements/gstmultiqueue.c: (apply_buffer), (gst_single_queue_push_one), (gst_multi_queue_chain), (gst_multi_queue_sink_event): Make sure we don't reference the buffer/event after we have given away ownership in the queue.
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2 changed files with 28 additions and 10 deletions
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@ -1,3 +1,11 @@
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2007-06-18 Wim Taymans <wim@fluendo.com>
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* plugins/elements/gstmultiqueue.c: (apply_buffer),
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(gst_single_queue_push_one), (gst_multi_queue_chain),
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(gst_multi_queue_sink_event):
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Make sure we don't reference the buffer/event after we have given away
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ownership in the queue.
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2007-06-18 Wim Taymans <wim@fluendo.com>
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2007-06-18 Wim Taymans <wim@fluendo.com>
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* plugins/elements/gstmultiqueue.c: (gst_single_queue_flush),
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* plugins/elements/gstmultiqueue.c: (gst_single_queue_flush),
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@ -523,14 +523,9 @@ apply_segment (GstMultiQueue * mq, GstSingleQueue * sq, GstEvent * event,
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/* take a buffer and update segment, updating the time level of the queue. */
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/* take a buffer and update segment, updating the time level of the queue. */
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static void
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static void
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apply_buffer (GstMultiQueue * mq, GstSingleQueue * sq, GstBuffer * buffer,
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apply_buffer (GstMultiQueue * mq, GstSingleQueue * sq, GstClockTime timestamp,
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GstSegment * segment)
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GstClockTime duration, GstSegment * segment)
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{
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{
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GstClockTime duration, timestamp;
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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/* if no timestamp is set, assume it's continuous with the previous
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/* if no timestamp is set, assume it's continuous with the previous
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* time */
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* time */
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if (timestamp == GST_CLOCK_TIME_NONE)
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if (timestamp == GST_CLOCK_TIME_NONE)
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@ -557,10 +552,13 @@ gst_single_queue_push_one (GstMultiQueue * mq, GstSingleQueue * sq,
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if (GST_IS_BUFFER (object)) {
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if (GST_IS_BUFFER (object)) {
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GstBuffer *buffer;
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GstBuffer *buffer;
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GstClockTime timestamp, duration;
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buffer = GST_BUFFER_CAST (object);
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buffer = GST_BUFFER_CAST (object);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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apply_buffer (mq, sq, buffer, &sq->src_segment);
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apply_buffer (mq, sq, timestamp, duration, &sq->src_segment);
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result = gst_pad_push (sq->srcpad, buffer);
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result = gst_pad_push (sq->srcpad, buffer);
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} else if (GST_IS_EVENT (object)) {
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} else if (GST_IS_EVENT (object)) {
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@ -747,6 +745,7 @@ gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
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GstMultiQueueItem *item;
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GstMultiQueueItem *item;
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GstFlowReturn ret = GST_FLOW_OK;
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GstFlowReturn ret = GST_FLOW_OK;
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guint32 curid;
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guint32 curid;
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GstClockTime timestamp, duration;
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sq = gst_pad_get_element_private (pad);
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sq = gst_pad_get_element_private (pad);
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mq = (GstMultiQueue *) gst_pad_get_parent (pad);
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mq = (GstMultiQueue *) gst_pad_get_parent (pad);
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@ -761,12 +760,15 @@ gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
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item = gst_multi_queue_item_new (GST_MINI_OBJECT_CAST (buffer), curid);
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item = gst_multi_queue_item_new (GST_MINI_OBJECT_CAST (buffer), curid);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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if (!(gst_data_queue_push (sq->queue, (GstDataQueueItem *) item)))
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if (!(gst_data_queue_push (sq->queue, (GstDataQueueItem *) item)))
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goto flushing;
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goto flushing;
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/* update time level, we must do this after pushing the data in the queue so
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/* update time level, we must do this after pushing the data in the queue so
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* that we never end up filling the queue first. */
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* that we never end up filling the queue first. */
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apply_buffer (mq, sq, buffer, &sq->sink_segment);
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apply_buffer (mq, sq, timestamp, duration, &sq->sink_segment);
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done:
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done:
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gst_object_unref (mq);
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gst_object_unref (mq);
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@ -809,6 +811,7 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
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GstMultiQueueItem *item;
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GstMultiQueueItem *item;
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gboolean res;
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gboolean res;
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GstEventType type;
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GstEventType type;
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GstEvent *sref = NULL;
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sq = (GstSingleQueue *) gst_pad_get_element_private (pad);
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sq = (GstSingleQueue *) gst_pad_get_element_private (pad);
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mq = (GstMultiQueue *) gst_pad_get_parent (pad);
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mq = (GstMultiQueue *) gst_pad_get_parent (pad);
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@ -833,6 +836,11 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
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gst_single_queue_flush (mq, sq, FALSE);
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gst_single_queue_flush (mq, sq, FALSE);
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goto done;
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goto done;
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case GST_EVENT_NEWSEGMENT:
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/* take ref because the queue will take ownership and we need the event
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* afterwards to update the segment */
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sref = gst_event_ref (event);
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break;
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default:
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default:
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if (!(GST_EVENT_IS_SERIALIZED (event))) {
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if (!(GST_EVENT_IS_SERIALIZED (event))) {
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@ -865,7 +873,7 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
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sq->is_eos = TRUE;
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sq->is_eos = TRUE;
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break;
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break;
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case GST_EVENT_NEWSEGMENT:
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case GST_EVENT_NEWSEGMENT:
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apply_segment (mq, sq, event, &sq->sink_segment);
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apply_segment (mq, sq, sref, &sq->sink_segment);
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break;
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break;
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default:
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default:
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break;
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break;
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@ -878,6 +886,8 @@ flushing:
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{
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{
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GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
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GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
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sq->id, gst_flow_get_name (sq->srcresult));
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sq->id, gst_flow_get_name (sq->srcresult));
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if (sref)
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gst_event_unref (sref);
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gst_multi_queue_item_destroy (item);
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gst_multi_queue_item_destroy (item);
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goto done;
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goto done;
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}
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}
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