New API in gstreamermm 1.8

Member Gst::AudioInfo::convert (Gst::Format fmt, gint64 src_val, Gst::Format dest_fmt, gint64& dest_val) const

Member Gst::AudioInfo::set_format (Gst::AudioFormat format, int rate, int channels, const Gst::AudioChannelPosition* position)

Member Gst::PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_PREFIX