digital_metadata.py 文件源码

def _write(self, samples, keyvals):
        """Write new metadata to the Digital Metadata channel.

        This function does no input checking, see `write` for that.


        Parameters
        ----------

        samples : 1-D numpy array of type uint64 sorted in ascending order
            An array of sample indices, given in the number of samples since
            the epoch (time_since_epoch*sample_rate).

        keyvals : iterable of iterables same length as `samples`
            Each element of this iterable corresponds to a sample in `samples`
            and should be another iterable that produces (key, value) pairs to
            write for that sample.

        """
        grp_iter = self._sample_group_generator(samples)
        for grp, keyval in zip(grp_iter, keyvals):
            for key, val in keyval:
                if val is not None:
                    grp.create_dataset(key, data=val)