AtomInfo * build_btrt_extension (guint32 buffer_size_db, guint32 avg_bitrate,
guint32 max_bitrate);
AtomInfo * build_jp2h_extension (AtomTRAK * trak, gint width, gint height,
- guint32 fourcc, gint ncomp,
+ const gchar *colorspace, gint ncomp,
const GValue * cmap_array,
const GValue * cdef_array);