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decodebin2: sprinkle some more locking

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... to avoid races and ensure some data structure consistency.

See also #574289.
This commit is contained in:
Mark Nauwelaerts 2010-01-15 19:52:29 +01:00
parent 45447337ad
commit 2482a536ac
1 changed files with 5 additions and 1 deletions
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6
gst/playback/gstdecodebin2.c
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@ -1897,17 +1897,19 @@ no_more_pads_cb (GstElement * element, GstDecodeChain * chain)
GST_LOG_OBJECT (element, "got no more pads");
CHAIN_MUTEX_LOCK (chain);
if (!chain->elements || (GstElement *) chain->elements->data != element) {
GST_LOG_OBJECT (chain->dbin, "no-more-pads from old chain element '%s'",
GST_OBJECT_NAME (element));
CHAIN_MUTEX_UNLOCK (chain);
return;
} else if (!chain->demuxer) {
GST_LOG_OBJECT (chain->dbin, "no-more-pads from a non-demuxer element '%s'",
GST_OBJECT_NAME (element));
CHAIN_MUTEX_UNLOCK (chain);
return;
}
CHAIN_MUTEX_LOCK (chain);
/* when we received no_more_pads, we can complete the pads of the chain */
if (!chain->next_groups && chain->active_group) {
group = chain->active_group;
@ -2548,6 +2550,7 @@ gst_decode_chain_is_complete (GstDecodeChain * chain)
{
gboolean complete = FALSE;
CHAIN_MUTEX_LOCK (chain);
if (chain->deadend) {
complete = TRUE;
goto out;
@ -2567,6 +2570,7 @@ gst_decode_chain_is_complete (GstDecodeChain * chain)
}
out:
CHAIN_MUTEX_UNLOCK (chain);
GST_DEBUG_OBJECT (chain->dbin, "Chain %p is complete: %d", chain, complete);
return complete;
}