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Code Issues 1 Projects Releases Wiki Activity

MSDK: Add a handle_context_query() helper function.

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1087>
This commit is contained in:
He Junyan 2021-08-17 22:33:18 +08:00 committed by GStreamer Marge Bot
parent 85664b5af6
commit 6635852c40
2 changed files with 69 additions and 0 deletions
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66
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcontextutil.c
View file

@ -218,3 +218,69 @@ gst_msdk_context_from_external_display (GstContext * context, gboolean hardware,
return FALSE;
}
gboolean
gst_msdk_handle_context_query (GstElement * element, GstQuery * query,
GstMsdkContext * msdk_context)
{
const gchar *context_type;
GstContext *ctxt, *old_ctxt;
gboolean ret = FALSE;
_init_context_debug ();
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (GST_IS_QUERY (query), FALSE);
g_return_val_if_fail (!msdk_context
|| GST_IS_MSDK_CONTEXT (msdk_context), FALSE);
GST_CAT_LOG_OBJECT (GST_CAT_CONTEXT, element,
"handle context query %" GST_PTR_FORMAT, query);
if (!msdk_context)
return FALSE;
gst_query_parse_context_type (query, &context_type);
gst_query_parse_context (query, &old_ctxt);
if (old_ctxt)
ctxt = gst_context_copy (old_ctxt);
else
ctxt = gst_context_new (context_type, TRUE);
#ifndef _WIN32
if (g_strcmp0 (context_type, GST_VA_DISPLAY_HANDLE_CONTEXT_TYPE_STR) == 0) {
GstStructure *s;
GstObject *display = gst_msdk_context_get_display (msdk_context);
if (display) {
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstVaDisplay (%" GST_PTR_FORMAT ") on context (%"
GST_PTR_FORMAT ")", display, ctxt);
s = gst_context_writable_structure (ctxt);
gst_structure_set (s, "gst-display", GST_TYPE_OBJECT, display, NULL);
/* Structure hold one ref */
gst_object_unref (display);
ret = TRUE;
}
} else
#endif
if (g_strcmp0 (context_type, GST_MSDK_CONTEXT_TYPE_NAME) == 0) {
GstStructure *s;
s = gst_context_writable_structure (ctxt);
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstMsdkContext (%" GST_PTR_FORMAT ") on context (%"
GST_PTR_FORMAT ")", msdk_context, ctxt);
gst_structure_set (s, GST_MSDK_CONTEXT_TYPE_NAME, GST_TYPE_MSDK_CONTEXT,
msdk_context, NULL);
ret = TRUE;
}
if (ret)
gst_query_set_context (query, ctxt);
gst_context_unref (ctxt);
return ret;
}

3
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcontextutil.h
View file

@ -56,6 +56,9 @@ gboolean
gst_msdk_context_from_external_display (GstContext * context, gboolean hardware,
GstMsdkContextJobType job_type, GstMsdkContext ** msdk_context);
gboolean
gst_msdk_handle_context_query (GstElement * element, GstQuery * query, GstMsdkContext * msdk_context);
G_END_DECLS
#endif /* GST_MSDK_CONTEXT_UTIL_H */