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glimagesink: handle the local_context query

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so that upstream elements can get the GL context from glimagesink
This commit is contained in:
Matthew Waters 2015-05-04 23:42:36 +10:00 committed by Tim-Philipp Müller
parent c2450a28f5
commit 296397a8b1
1 changed files with 31 additions and 3 deletions
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34
ext/gl/gstglimagesink.c
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@ -597,12 +597,40 @@ gst_glimage_sink_query (GstBaseSink * bsink, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
gboolean ret =
gst_gl_handle_context_query ((GstElement *) glimage_sink, query,
const gchar *context_type;
GstContext *context, *old_context;
res = gst_gl_handle_context_query ((GstElement *) glimage_sink, query,
&glimage_sink->display, &glimage_sink->other_context);
if (glimage_sink->display)
gst_gl_display_filter_gl_api (glimage_sink->display, SUPPORTED_GL_APIS);
return ret;
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
GstStructure *s;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ("gst.gl.local_context", FALSE);
s = gst_context_writable_structure (context);
gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT,
glimage_sink->context, NULL);
gst_query_set_context (query, context);
gst_context_unref (context);
res = glimage_sink->context != NULL;
}
GST_LOG_OBJECT (glimage_sink, "context query of type %s %i", context_type,
res);
if (res)
return res;
break;
}
case GST_QUERY_DRAIN:
{