gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
gboolean ret;
+ GstCaps *caps;
+ GstCapsFeatures *features;
GstVtdec *vtdec = GST_VTDEC (decoder);
ret =
GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation
(decoder, query);
- if (ret) {
- GstCaps *caps;
- GstCapsFeatures *features;
- guint idx;
-
- gst_query_parse_allocation (query, &caps, NULL);
- if (caps) {
- features = gst_caps_get_features (caps, 0);
-
- if (gst_caps_features_contains (features,
- GST_CAPS_FEATURE_MEMORY_GL_MEMORY)
- && gst_query_find_allocation_meta (query,
- GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
- GstGLContext *context;
- const GstStructure *upload_meta_params;
-
- gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
- if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
- GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
- vtdec->texture_cache = gst_core_video_texture_cache_new (context);
- gst_object_unref (context);
+ if (!ret)
+ goto out;
+
+ gst_query_parse_allocation (query, &caps, NULL);
+ if (caps) {
+ GstGLContext *gl_context = NULL;
+ features = gst_caps_get_features (caps, 0);
+
+ if (gst_caps_features_contains (features,
+ GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
+ GstContext *context = NULL;
+ GstQuery *query = gst_query_new_context ("gst.gl.local_context");
+ if (gst_pad_peer_query (GST_VIDEO_DECODER_SRC_PAD (decoder), query)) {
+
+ gst_query_parse_context (query, &context);
+ if (context) {
+ const GstStructure *s = gst_context_get_structure (context);
+ gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &gl_context,
+ NULL);
}
}
+ gst_query_unref (query);
+
+ if (context) {
+ GST_INFO_OBJECT (decoder, "pushing textures. GL context %p", context);
+ vtdec->texture_cache = gst_core_video_texture_cache_new (gl_context);
+ gst_object_unref (gl_context);
+ } else {
+ GST_WARNING_OBJECT (decoder,
+ "got memory:GLMemory caps but not GL context from downstream element");
+ }
}
}
+out:
return ret;
}