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Diffstat (limited to 'docs/random')
| -rw-r--r-- | docs/random/signal | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/random/signal b/docs/random/signal new file mode 100644 index 000000000..679a36c12 --- /dev/null +++ b/docs/random/signal @@ -0,0 +1,12 @@ +Random notes on signals: + +* Use a BOXED (and not a POINTER) marshaller when your signal will have a + GstBuffer argument: + +g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GstIdentityClass, handoff), NULL, NULL, + gst_marshal_VOID__BOXED, G_TYPE_NONE, 1, + GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE); + +* For GstBuffers arguments, consider using G_SIGNAL_TYPE_STATIC_SCOPE as it + can prevent an extra copy of the buffer |