[Webkit-unassigned] [Bug 240229] [GStreamer][VideoCapture] Add support for capturing encoded video streams from a webcam

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=240229

--- Comment #13 from Loïc Le Page <llepage at igalia.com> ---
Comment on attachment 459216
  --> https://bugs.webkit.org/attachment.cgi?id=459216
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=459216&action=review

>> Source/WebCore/platform/mediastream/gstreamer/GStreamerVideoCapturer.cpp:71
>> +    auto bin = makeGStreamerBin("capsfilter caps=\"video/x-raw\" name=mimetype-filter ! decodebin3 ! videoscale ! videoconvert ! videorate drop-only=1 average-period=1 name=videorate", false);
> 
> So passing true as second argument here wasn't working? Was it due to decodebin3?

Yes, this is because of decobin3.

As src pad is a "sometimes" pad the automatic ghost pad was connected to the videoscale right after and so the mimetype was correctly forced on the first capsfilter but it was useless as the bin src pad was bypassing it.

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