Original commit message from CVS: * ext/amrnb/amrnbdec.c: (gst_amrnbdec_setcaps), (gst_amrnbdec_chain), (gst_amrnbdec_state_change): Some more comments. * ext/mpeg2dec/gstmpeg2dec.c: (crop_buffer), (handle_slice): Applied patch from Fabrizio Gennari, fixes #330844.