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glmixerbin: add gloverlaycompositor to each input stream

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Flattens the overlay compositions into the stream before the mixer will
mix them.

https://bugzilla.gnome.org/show_bug.cgi?id=759867
This commit is contained in:
Matthew Waters 2018-09-27 16:37:28 +10:00
parent b5ae66ea1d
commit ea355ca0a3
1 changed files with 14 additions and 1 deletions
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15
ext/gl/gstglmixerbin.c
View file

@ -68,6 +68,7 @@ struct input_chain
GstGhostPad *ghost_pad;
GstElement *upload;
GstElement *in_convert;
GstElement *in_overlay;
GstPad *mixer_pad;
};
@ -91,6 +92,12 @@ _free_input_chain (struct input_chain *chain)
chain->in_convert = NULL;
}
if (chain->in_overlay) {
gst_element_set_state (chain->in_overlay, GST_STATE_NULL);
gst_bin_remove (GST_BIN (chain->self), chain->in_overlay);
chain->in_overlay = NULL;
}
if (chain->mixer_pad) {
gst_element_release_request_pad (chain->self->mixer, chain->mixer_pad);
gst_object_unref (chain->mixer_pad);
@ -291,16 +298,21 @@ _create_input_chain (GstGLMixerBin * self, struct input_chain *chain,
chain->upload = gst_element_factory_make ("glupload", NULL);
chain->in_convert = gst_element_factory_make ("glcolorconvert", NULL);
chain->in_overlay = gst_element_factory_make ("gloverlaycompositor", NULL);
res &= gst_bin_add (GST_BIN (self), chain->in_convert);
res &= gst_bin_add (GST_BIN (self), chain->in_overlay);
res &= gst_bin_add (GST_BIN (self), chain->upload);
pad = gst_element_get_static_pad (chain->in_convert, "src");
pad = gst_element_get_static_pad (chain->in_overlay, "src");
if (gst_pad_link (pad, mixer_pad) != GST_PAD_LINK_OK) {
gst_object_unref (pad);
return FALSE;
}
gst_object_unref (pad);
res &=
gst_element_link_pads (chain->in_convert, "src", chain->in_overlay,
"sink");
res &=
gst_element_link_pads (chain->upload, "src", chain->in_convert, "sink");
@ -332,6 +344,7 @@ _create_input_chain (GstGLMixerBin * self, struct input_chain *chain,
gst_element_sync_state_with_parent (chain->upload);
gst_element_sync_state_with_parent (chain->in_convert);
gst_element_sync_state_with_parent (chain->in_overlay);
return TRUE;
}