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fallbacksrc: Don't check caps when linking to the fallbackswitch

Browse source 
Downstream might have different caps requirements and linking might
fail. Instead of having linking fail, give upstream an opportunity to
reconfigure and otherwise have a normal negotiation error during data
flow.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/334

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1161>
This commit is contained in:
Sebastian Dröge 2023-04-04 12:34:27 +03:00
parent 25e9fc55b7
commit f7c81e78f5
1 changed files with 12 additions and 2 deletions
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14
utils/fallbackswitch/src/fallbacksrc/imp.rs
View file

@ -1178,8 +1178,13 @@ impl FallbackSrc {
let dummy_srcpad = dummy_source.static_pad("src").unwrap();
let dummy_sinkpad = switch.request_pad_simple("sink_%u").unwrap();
dummy_srcpad.link(&dummy_sinkpad).unwrap();
dummy_sinkpad.set_property("priority", 2u32);
dummy_srcpad
.link_full(
&dummy_sinkpad,
gst::PadLinkCheck::all() & !gst::PadLinkCheck::CAPS,
)
.unwrap();
switch.connect_notify(Some("active-pad"), move |switch, _pspec| {
let element = match switch
@ -1894,7 +1899,12 @@ impl FallbackSrc {
// Link the new source pad in
let switch_pad = switch.request_pad_simple("sink_%u").unwrap();
switch_pad.set_property("priority", u32::from(fallback_source));
ghostpad.link(&switch_pad).unwrap();
ghostpad
.link_full(
&switch_pad,
gst::PadLinkCheck::all() & !gst::PadLinkCheck::CAPS,
)
.unwrap();
pad.add_probe(gst::PadProbeType::EVENT_DOWNSTREAM, move |pad, info| {
let element = match pad