Push mode flow relies on upstream_size but it was not initialized when activated as it is when activated in pull mode. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7128>
Push mode flow relies on upstream_size but it was not initialized when activated as it is when activated in pull mode. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7128>