gst_buffer_append_region
gst_buffer_get_meta
+gst_buffer_get_n_meta
gst_buffer_add_meta
gst_buffer_remove_meta
gst_buffer_iterate_meta
gst_sample_get_caps
gst_sample_get_info
gst_sample_get_segment
+gst_sample_set_buffer
gst_sample_set_buffer_list
+gst_sample_set_caps
+gst_sample_set_segment
+gst_sample_set_info
gst_sample_new
gst_sample_ref
gst_sample_unref
gst_sample_copy
+gst_buffer_is_writable
+gst_buffer_make_writable
<SUBSECTION Standard>
GST_IS_SAMPLE
GST_SAMPLE
gst_message_unref
gst_message_copy
gst_message_get_structure
+gst_message_writable_structure
gst_message_make_writable
gst_message_get_seqnum
gst_message_set_seqnum
GST_PAD_TEMPLATE_IS_FIXED
GST_PAD_TEMPLATE_GTYPE
gst_pad_template_new
+gst_pad_template_new_with_gtype
gst_pad_template_new_from_static_pad_template_with_gtype
gst_pad_template_get_caps