Original commit message from CVS:
2005-11-20  Julien MOUTTE  <julien@moutte.net>

* gst/matroska/matroska-mux.c: (gst_matroska_mux_start): Fix for
API changes.
* gst/wavenc/gstwavenc.c: (gst_wavenc_chain): Fix for API
changes,
but also fix the code that was not checking return values from
pad_push neither using pad_alloc_buffer.