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imagefreeze: Return GST_FLOW_UNEXPECTED when getting a second buffer

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This prevents upstream from pushing many useless buffers and makes
it go into EOS state.
This commit is contained in:
Sebastian Dröge 2010-08-11 08:46:14 +02:00
parent 134b1f0eee
commit dffab828c6
1 changed files with 4 additions and 5 deletions
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9
gst/imagefreeze/gstimagefreeze.c
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@ -332,8 +332,8 @@ gst_image_freeze_sink_bufferalloc (GstPad * pad, guint64 offset, guint size,
GST_ERROR_OBJECT (pad, "Allocating buffer failed: %s",
gst_flow_get_name (ret));
} else {
/* In this case GstPad will allocate a buffer for us */
ret = GST_FLOW_OK;
/* Let upstream go EOS if we already have a buffer */
ret = GST_FLOW_UNEXPECTED;
}
gst_object_unref (self);
@ -687,14 +687,13 @@ static GstFlowReturn
gst_image_freeze_sink_chain (GstPad * pad, GstBuffer * buffer)
{
GstImageFreeze *self = GST_IMAGE_FREEZE (GST_PAD_PARENT (pad));
GstFlowReturn ret = GST_FLOW_OK;
GST_OBJECT_LOCK (self);
if (self->buffer) {
GST_DEBUG_OBJECT (pad, "Already have a buffer, dropping");
gst_buffer_unref (buffer);
GST_OBJECT_UNLOCK (self);
return ret;
return GST_FLOW_UNEXPECTED;
}
self->buffer = buffer;
@ -702,7 +701,7 @@ gst_image_freeze_sink_chain (GstPad * pad, GstBuffer * buffer)
gst_pad_start_task (self->srcpad, (GstTaskFunction) gst_image_freeze_src_loop,
self->srcpad);
return ret;
return GST_FLOW_OK;
}
static void