+ if (*num_rans_bytes == 0) {
+ // Repeat last stream.
+ stream->src_offset = last_src_offset;
+ stream->src_len = last_src_len;
+ } else {
+ stream->src_offset = ptr - coded.data();
+ stream->src_len = *num_rans_bytes;
+ last_src_offset = stream->src_offset;
+ last_src_len = last_src_len;
+ }