decodebin3: When reconfiguring a slot make sure that the ghostpad is unlinked

This was only taken care of previously if there was a decoder before.
However if previously a decoder was not needed then the ghostpad
would've been linked directly to the slot's srcpad.

Reconfiguring the slot requires this to be undone so that linking can
happen normally.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/985>
This commit is contained in:
Sebastian Dröge 2020-12-24 11:44:27 +02:00
parent 932dfd4031
commit 15fb391401

View file

@ -2284,6 +2284,15 @@ reconfigure_output_stream (DecodebinOutputStream * output,
gst_bin_remove ((GstBin *) dbin, output->decoder);
output->decoder = NULL;
output->decoder_latency = GST_CLOCK_TIME_NONE;
} else if (output->linked) {
/* Otherwise if we have no decoder yet but the output is linked make
* sure that the ghost pad is really unlinked in case no decoder was
* needed previously */
if (!gst_ghost_pad_set_target ((GstGhostPad *) output->src_pad, NULL)) {
GST_ERROR_OBJECT (dbin, "Could not release ghost pad");
gst_caps_unref (new_caps);
goto cleanup;
}
}
gst_caps_unref (new_caps);