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imagefreeze: Correctly answer the LATENCY query

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We never run as a live element, even if upstream is live, and never
output any buffers with latency but immediately generate buffers as
fast as we can according to the negotiated framerate.

Passing the query upstream would proxy whatever mode of operation
upstream has, which has nothing to do with how we produce buffers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/653>
This commit is contained in:
Sebastian Dröge 2020-06-28 22:26:23 +03:00
parent ca61a76987
commit 06b29a4aef
1 changed files with 4 additions and 5 deletions
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9
gst/imagefreeze/gstimagefreeze.c
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@ -536,11 +536,10 @@ gst_image_freeze_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
break;
}
case GST_QUERY_LATENCY:
/* This will only return an accurate latency for the first buffer since
* all further buffers outputted by us are just copies of that one, and
* the latency is 0 in that case. However, latency changes are not
* straightforward, so let's do the conservative fix for now. */
ret = gst_pad_query_default (pad, parent, query);
/* We never run as a live element, even if upstream is live, and never
* output any buffers with latency but immediately generate buffers as
* fast as we can according to the negotiated framerate */
gst_query_set_latency (query, FALSE, 0, GST_CLOCK_TIME_NONE);
break;
default:
ret = FALSE;