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basecamerabinsrc: Optimize preview pipeline startup

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Use gst_element_link_pads_full to optimize preview pipeline startup,
leading to a faster camerabin2 startup as well.
This commit is contained in:
Thiago Santos 2011-08-31 13:28:25 -03:00
parent ac7fc0d357
commit e17d99c4c4
1 changed files with 28 additions and 6 deletions
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34
gst-libs/gst/basecamerabinsrc/gstcamerabinpreview.c
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@ -128,6 +128,7 @@ gst_camerabin_create_preview_pipeline (GstElement * element,
GstElement *csp2; GstElement *csp2;
GstElement *vscale; GstElement *vscale;
gboolean added = FALSE; gboolean added = FALSE;
gboolean linkfail = FALSE;
GstBus *bus; GstBus *bus;
GstAppSinkCallbacks callbacks = { 0, }; GstAppSinkCallbacks callbacks = { 0, };
@ -154,13 +155,34 @@ gst_camerabin_create_preview_pipeline (GstElement * element,
added = TRUE; added = TRUE;
if (filter) { if (filter) {
if (!gst_element_link_many (data->appsrc, filter, csp, vscale, csp2, linkfail |=
data->capsfilter, data->appsink, NULL)) GST_PAD_LINK_FAILED (gst_element_link_pads_full (data->appsrc, "src",
goto error; filter, NULL, GST_PAD_LINK_CHECK_NOTHING));
linkfail |=
GST_PAD_LINK_FAILED (gst_element_link_pads_full (filter, NULL,
csp, "sink", GST_PAD_LINK_CHECK_CAPS));
} else { } else {
if (!gst_element_link_many (data->appsrc, csp, vscale, csp2, linkfail |=
data->capsfilter, data->appsink, NULL)) GST_PAD_LINK_FAILED (gst_element_link_pads_full (data->appsrc, "src",
goto error; csp, "sink", GST_PAD_LINK_CHECK_NOTHING));
}
linkfail |=
GST_PAD_LINK_FAILED (gst_element_link_pads_full (csp, "src", vscale,
"sink", GST_PAD_LINK_CHECK_NOTHING));
linkfail |=
GST_PAD_LINK_FAILED (gst_element_link_pads_full (vscale, "src", csp2,
"sink", GST_PAD_LINK_CHECK_NOTHING));
linkfail |=
GST_PAD_LINK_FAILED (gst_element_link_pads_full (csp2, "src",
data->capsfilter, "sink", GST_PAD_LINK_CHECK_NOTHING));
linkfail |=
GST_PAD_LINK_FAILED (gst_element_link_pads_full (data->capsfilter, "src",
data->appsink, "sink", GST_PAD_LINK_CHECK_NOTHING));
if (linkfail) {
GST_WARNING ("Failed to link preview pipeline elements");
goto error;
} }
callbacks.new_buffer = gst_camerabin_preview_pipeline_new_buffer; callbacks.new_buffer = gst_camerabin_preview_pipeline_new_buffer;